# libchdr
ifeq "$(HAVE_CHD)" "1"
-CFLAGS += -Ideps/libchdr
+CFLAGS += -Ideps/libchdr/include
+CFLAGS += -Ideps/libchdr/include/libchdr
OBJS += deps/crypto/md5.o
OBJS += deps/crypto/sha1.o
-OBJS += deps/flac-1.3.2/src/libFLAC/bitmath.o
-OBJS += deps/flac-1.3.2/src/libFLAC/bitreader.o
-OBJS += deps/flac-1.3.2/src/libFLAC/cpu.o
-OBJS += deps/flac-1.3.2/src/libFLAC/crc.o
-OBJS += deps/flac-1.3.2/src/libFLAC/fixed.o
-OBJS += deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.o
-OBJS += deps/flac-1.3.2/src/libFLAC/fixed_intrin_ssse3.o
-OBJS += deps/flac-1.3.2/src/libFLAC/float.o
-OBJS += deps/flac-1.3.2/src/libFLAC/format.o
-OBJS += deps/flac-1.3.2/src/libFLAC/lpc.o
-OBJS += deps/flac-1.3.2/src/libFLAC/lpc_intrin_avx2.o
-OBJS += deps/flac-1.3.2/src/libFLAC/lpc_intrin_sse2.o
-OBJS += deps/flac-1.3.2/src/libFLAC/lpc_intrin_sse41.o
-OBJS += deps/flac-1.3.2/src/libFLAC/lpc_intrin_sse.o
-OBJS += deps/flac-1.3.2/src/libFLAC/md5.o
-OBJS += deps/flac-1.3.2/src/libFLAC/memory.o
-OBJS += deps/flac-1.3.2/src/libFLAC/metadata_iterators.o
-OBJS += deps/flac-1.3.2/src/libFLAC/metadata_object.o
-OBJS += deps/flac-1.3.2/src/libFLAC/stream_decoder.o
-OBJS += deps/flac-1.3.2/src/libFLAC/window.o
OBJS += deps/lzma-16.04/C/Alloc.o
OBJS += deps/lzma-16.04/C/Bra86.o
OBJS += deps/lzma-16.04/C/Bra.o
OBJS += deps/lzma-16.04/C/LzmaEnc.o
OBJS += deps/lzma-16.04/C/LzmaLib.o
OBJS += deps/lzma-16.04/C/Sort.o
-OBJS += deps/libchdr/bitstream.o
-OBJS += deps/libchdr/cdrom.o
-OBJS += deps/libchdr/chd.o
-OBJS += deps/libchdr/flac.o
-OBJS += deps/libchdr/huffman.o
-
-ifneq (,$(findstring win,$(platform)))
- CFLAGS += -DHAVE_FSEEKO
- OBJS += deps/flac-1.3.2/src/libFLAC/windows_unicode_filenames.o
-else
- CFLAGS += -DHAVE_SYS_PARAM_H
-endif
-
-CFLAGS += -Ideps/crypto -Ideps/flac-1.3.2/include -Ideps/flac-1.3.2/src/libFLAC/include -Ideps/flac-1.3.2/src/libFLAC/include -Ideps/lzma-16.04/C
-CFLAGS += -DHAVE_CHD -D'PACKAGE_VERSION="1.3.2"' -DFLAC__HAS_OGG=0 -DFLAC__NO_DLL -DHAVE_LROUND -DHAVE_STDINT_H -DHAVE_STDLIB_H -DFLAC__NO_DLL -D_7ZIP_ST
+OBJS += deps/libchdr/src/libchdr_bitstream.o
+OBJS += deps/libchdr/src/libchdr_cdrom.o
+OBJS += deps/libchdr/src/libchdr_chd.o
+OBJS += deps/libchdr/src/libchdr_flac.o
+OBJS += deps/libchdr/src/libchdr_huffman.o
+CFLAGS += -Ideps/crypto -Ideps/lzma-16.04/C
+CFLAGS += -DHAVE_CHD -D_7ZIP_ST
LDFLAGS += -lm
endif
+++ /dev/null
-# libFLAC++ - Free Lossless Audio Codec library
-# Copyright (C) 2002-2009 Josh Coalson
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-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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-.NOEXPORT:
+++ /dev/null
-/* libFLAC++ - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLACPP__ALL_H
-#define FLACPP__ALL_H
-
-#include "export.h"
-
-#include "encoder.h"
-#include "decoder.h"
-#include "metadata.h"
-
-/** \defgroup flacpp FLAC C++ API
- *
- * The FLAC C++ API is the interface to libFLAC++, a set of classes
- * that encapsulate the encoders, decoders, and metadata interfaces
- * in libFLAC.
- */
-
-#endif
+++ /dev/null
-/* libFLAC++ - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLACPP__DECODER_H
-#define FLACPP__DECODER_H
-
-#include "export.h"
-
-#include <string>
-#include "FLAC/stream_decoder.h"
-
-
-/** \file include/FLAC++/decoder.h
- *
- * \brief
- * This module contains the classes which implement the various
- * decoders.
- *
- * See the detailed documentation in the
- * \link flacpp_decoder decoder \endlink module.
- */
-
-/** \defgroup flacpp_decoder FLAC++/decoder.h: decoder classes
- * \ingroup flacpp
- *
- * \brief
- * This module describes the decoder layers provided by libFLAC++.
- *
- * The libFLAC++ decoder classes are object wrappers around their
- * counterparts in libFLAC. All decoding layers available in
- * libFLAC are also provided here. The interface is very similar;
- * make sure to read the \link flac_decoder libFLAC decoder module \endlink.
- *
- * There are only two significant differences here. First, instead of
- * passing in C function pointers for callbacks, you inherit from the
- * decoder class and provide implementations for the callbacks in your
- * derived class; because of this there is no need for a 'client_data'
- * property.
- *
- * Second, there are two stream decoder classes. FLAC::Decoder::Stream
- * is used for the same cases that FLAC__stream_decoder_init_stream() /
- * FLAC__stream_decoder_init_ogg_stream() are used, and FLAC::Decoder::File
- * is used for the same cases that
- * FLAC__stream_decoder_init_FILE() and FLAC__stream_decoder_init_file() /
- * FLAC__stream_decoder_init_ogg_FILE() and FLAC__stream_decoder_init_ogg_file()
- * are used.
- */
-
-namespace FLAC {
- namespace Decoder {
-
- /** \ingroup flacpp_decoder
- * \brief
- * This class wraps the ::FLAC__StreamDecoder. If you are
- * decoding from a file, FLAC::Decoder::File may be more
- * convenient.
- *
- * The usage of this class is similar to FLAC__StreamDecoder,
- * except instead of providing callbacks to
- * FLAC__stream_decoder_init*_stream(), you will inherit from this
- * class and override the virtual callback functions with your
- * own implementations, then call init() or init_ogg(). The rest
- * of the calls work the same as in the C layer.
- *
- * Only the read, write, and error callbacks are mandatory. The
- * others are optional; this class provides default
- * implementations that do nothing. In order for seeking to work
- * you must overide seek_callback(), tell_callback(),
- * length_callback(), and eof_callback().
- */
- class FLACPP_API Stream {
- public:
- /** This class is a wrapper around FLAC__StreamDecoderState.
- */
- class FLACPP_API State {
- public:
- inline State(::FLAC__StreamDecoderState state): state_(state) { }
- inline operator ::FLAC__StreamDecoderState() const { return state_; }
- inline const char *as_cstring() const { return ::FLAC__StreamDecoderStateString[state_]; }
- inline const char *resolved_as_cstring(const Stream &decoder) const { return ::FLAC__stream_decoder_get_resolved_state_string(decoder.decoder_); }
- protected:
- ::FLAC__StreamDecoderState state_;
- };
-
- Stream();
- virtual ~Stream();
-
- //@{
- /** Call after construction to check the that the object was created
- * successfully. If not, use get_state() to find out why not.
- */
- virtual bool is_valid() const;
- inline operator bool() const { return is_valid(); } ///< See is_valid()
- //@}
-
- virtual bool set_ogg_serial_number(long value); ///< See FLAC__stream_decoder_set_ogg_serial_number()
- virtual bool set_md5_checking(bool value); ///< See FLAC__stream_decoder_set_md5_checking()
- virtual bool set_metadata_respond(::FLAC__MetadataType type); ///< See FLAC__stream_decoder_set_metadata_respond()
- virtual bool set_metadata_respond_application(const FLAC__byte id[4]); ///< See FLAC__stream_decoder_set_metadata_respond_application()
- virtual bool set_metadata_respond_all(); ///< See FLAC__stream_decoder_set_metadata_respond_all()
- virtual bool set_metadata_ignore(::FLAC__MetadataType type); ///< See FLAC__stream_decoder_set_metadata_ignore()
- virtual bool set_metadata_ignore_application(const FLAC__byte id[4]); ///< See FLAC__stream_decoder_set_metadata_ignore_application()
- virtual bool set_metadata_ignore_all(); ///< See FLAC__stream_decoder_set_metadata_ignore_all()
-
- /* get_state() is not virtual since we want subclasses to be able to return their own state */
- State get_state() const; ///< See FLAC__stream_decoder_get_state()
- virtual bool get_md5_checking() const; ///< See FLAC__stream_decoder_get_md5_checking()
- virtual FLAC__uint64 get_total_samples() const; ///< See FLAC__stream_decoder_get_total_samples()
- virtual unsigned get_channels() const; ///< See FLAC__stream_decoder_get_channels()
- virtual ::FLAC__ChannelAssignment get_channel_assignment() const; ///< See FLAC__stream_decoder_get_channel_assignment()
- virtual unsigned get_bits_per_sample() const; ///< See FLAC__stream_decoder_get_bits_per_sample()
- virtual unsigned get_sample_rate() const; ///< See FLAC__stream_decoder_get_sample_rate()
- virtual unsigned get_blocksize() const; ///< See FLAC__stream_decoder_get_blocksize()
- virtual bool get_decode_position(FLAC__uint64 *position) const; ///< See FLAC__stream_decoder_get_decode_position()
-
- virtual ::FLAC__StreamDecoderInitStatus init(); ///< Seek FLAC__stream_decoder_init_stream()
- virtual ::FLAC__StreamDecoderInitStatus init_ogg(); ///< Seek FLAC__stream_decoder_init_ogg_stream()
-
- virtual bool finish(); ///< See FLAC__stream_decoder_finish()
-
- virtual bool flush(); ///< See FLAC__stream_decoder_flush()
- virtual bool reset(); ///< See FLAC__stream_decoder_reset()
-
- virtual bool process_single(); ///< See FLAC__stream_decoder_process_single()
- virtual bool process_until_end_of_metadata(); ///< See FLAC__stream_decoder_process_until_end_of_metadata()
- virtual bool process_until_end_of_stream(); ///< See FLAC__stream_decoder_process_until_end_of_stream()
- virtual bool skip_single_frame(); ///< See FLAC__stream_decoder_skip_single_frame()
-
- virtual bool seek_absolute(FLAC__uint64 sample); ///< See FLAC__stream_decoder_seek_absolute()
- protected:
- /// see FLAC__StreamDecoderReadCallback
- virtual ::FLAC__StreamDecoderReadStatus read_callback(FLAC__byte buffer[], size_t *bytes) = 0;
-
- /// see FLAC__StreamDecoderSeekCallback
- virtual ::FLAC__StreamDecoderSeekStatus seek_callback(FLAC__uint64 absolute_byte_offset);
-
- /// see FLAC__StreamDecoderTellCallback
- virtual ::FLAC__StreamDecoderTellStatus tell_callback(FLAC__uint64 *absolute_byte_offset);
-
- /// see FLAC__StreamDecoderLengthCallback
- virtual ::FLAC__StreamDecoderLengthStatus length_callback(FLAC__uint64 *stream_length);
-
- /// see FLAC__StreamDecoderEofCallback
- virtual bool eof_callback();
-
- /// see FLAC__StreamDecoderWriteCallback
- virtual ::FLAC__StreamDecoderWriteStatus write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[]) = 0;
-
- /// see FLAC__StreamDecoderMetadataCallback
- virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata);
-
- /// see FLAC__StreamDecoderErrorCallback
- virtual void error_callback(::FLAC__StreamDecoderErrorStatus status) = 0;
-
-#if (defined __BORLANDC__) || (defined __GNUG__ && (__GNUG__ < 2 || (__GNUG__ == 2 && __GNUC_MINOR__ < 96))) || (defined __SUNPRO_CC)
- // lame hack: some compilers can't see a protected decoder_ from nested State::resolved_as_cstring()
- friend State;
-#endif
- ::FLAC__StreamDecoder *decoder_;
-
- static ::FLAC__StreamDecoderReadStatus read_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
- static ::FLAC__StreamDecoderSeekStatus seek_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
- static ::FLAC__StreamDecoderTellStatus tell_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
- static ::FLAC__StreamDecoderLengthStatus length_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
- static FLAC__bool eof_callback_(const ::FLAC__StreamDecoder *decoder, void *client_data);
- static ::FLAC__StreamDecoderWriteStatus write_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
- static void metadata_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__StreamMetadata *metadata, void *client_data);
- static void error_callback_(const ::FLAC__StreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data);
- private:
- // Private and undefined so you can't use them:
- Stream(const Stream &);
- void operator=(const Stream &);
- };
-
- /** \ingroup flacpp_decoder
- * \brief
- * This class wraps the ::FLAC__StreamDecoder. If you are
- * not decoding from a file, you may need to use
- * FLAC::Decoder::Stream.
- *
- * The usage of this class is similar to FLAC__StreamDecoder,
- * except instead of providing callbacks to
- * FLAC__stream_decoder_init*_FILE() or
- * FLAC__stream_decoder_init*_file(), you will inherit from this
- * class and override the virtual callback functions with your
- * own implementations, then call init() or init_off(). The rest
- * of the calls work the same as in the C layer.
- *
- * Only the write, and error callbacks from FLAC::Decoder::Stream
- * are mandatory. The others are optional; this class provides
- * full working implementations for all other callbacks and
- * supports seeking.
- */
- class FLACPP_API File: public Stream {
- public:
- File();
- virtual ~File();
-
- using Stream::init;
- virtual ::FLAC__StreamDecoderInitStatus init(FILE *file); ///< See FLAC__stream_decoder_init_FILE()
- virtual ::FLAC__StreamDecoderInitStatus init(const char *filename); ///< See FLAC__stream_decoder_init_file()
- virtual ::FLAC__StreamDecoderInitStatus init(const std::string &filename); ///< See FLAC__stream_decoder_init_file()
- using Stream::init_ogg;
- virtual ::FLAC__StreamDecoderInitStatus init_ogg(FILE *file); ///< See FLAC__stream_decoder_init_ogg_FILE()
- virtual ::FLAC__StreamDecoderInitStatus init_ogg(const char *filename); ///< See FLAC__stream_decoder_init_ogg_file()
- virtual ::FLAC__StreamDecoderInitStatus init_ogg(const std::string &filename); ///< See FLAC__stream_decoder_init_ogg_file()
- protected:
- // this is a dummy implementation to satisfy the pure virtual in Stream that is actually supplied internally by the C layer
- virtual ::FLAC__StreamDecoderReadStatus read_callback(FLAC__byte buffer[], size_t *bytes);
- private:
- // Private and undefined so you can't use them:
- File(const File &);
- void operator=(const File &);
- };
-
- }
-}
-
-#endif
+++ /dev/null
-/* libFLAC++ - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLACPP__ENCODER_H
-#define FLACPP__ENCODER_H
-
-#include "export.h"
-
-#include "FLAC/stream_encoder.h"
-#include "decoder.h"
-#include "metadata.h"
-
-
-/** \file include/FLAC++/encoder.h
- *
- * \brief
- * This module contains the classes which implement the various
- * encoders.
- *
- * See the detailed documentation in the
- * \link flacpp_encoder encoder \endlink module.
- */
-
-/** \defgroup flacpp_encoder FLAC++/encoder.h: encoder classes
- * \ingroup flacpp
- *
- * \brief
- * This module describes the encoder layers provided by libFLAC++.
- *
- * The libFLAC++ encoder classes are object wrappers around their
- * counterparts in libFLAC. All encoding layers available in
- * libFLAC are also provided here. The interface is very similar;
- * make sure to read the \link flac_encoder libFLAC encoder module \endlink.
- *
- * There are only two significant differences here. First, instead of
- * passing in C function pointers for callbacks, you inherit from the
- * encoder class and provide implementations for the callbacks in your
- * derived class; because of this there is no need for a 'client_data'
- * property.
- *
- * Second, there are two stream encoder classes. FLAC::Encoder::Stream
- * is used for the same cases that FLAC__stream_encoder_init_stream() /
- * FLAC__stream_encoder_init_ogg_stream() are used, and FLAC::Encoder::File
- * is used for the same cases that
- * FLAC__stream_encoder_init_FILE() and FLAC__stream_encoder_init_file() /
- * FLAC__stream_encoder_init_ogg_FILE() and FLAC__stream_encoder_init_ogg_file()
- * are used.
- */
-
-namespace FLAC {
- namespace Encoder {
-
- /** \ingroup flacpp_encoder
- * \brief
- * This class wraps the ::FLAC__StreamEncoder. If you are
- * encoding to a file, FLAC::Encoder::File may be more
- * convenient.
- *
- * The usage of this class is similar to FLAC__StreamEncoder,
- * except instead of providing callbacks to
- * FLAC__stream_encoder_init*_stream(), you will inherit from this
- * class and override the virtual callback functions with your
- * own implementations, then call init() or init_ogg(). The rest of
- * the calls work the same as in the C layer.
- *
- * Only the write callback is mandatory. The others are
- * optional; this class provides default implementations that do
- * nothing. In order for some STREAMINFO and SEEKTABLE data to
- * be written properly, you must overide seek_callback() and
- * tell_callback(); see FLAC__stream_encoder_init_stream() as to
- * why.
- */
- class FLACPP_API Stream {
- public:
- /** This class is a wrapper around FLAC__StreamEncoderState.
- */
- class FLACPP_API State {
- public:
- inline State(::FLAC__StreamEncoderState state): state_(state) { }
- inline operator ::FLAC__StreamEncoderState() const { return state_; }
- inline const char *as_cstring() const { return ::FLAC__StreamEncoderStateString[state_]; }
- inline const char *resolved_as_cstring(const Stream &encoder) const { return ::FLAC__stream_encoder_get_resolved_state_string(encoder.encoder_); }
- protected:
- ::FLAC__StreamEncoderState state_;
- };
-
- Stream();
- virtual ~Stream();
-
- //@{
- /** Call after construction to check the that the object was created
- * successfully. If not, use get_state() to find out why not.
- *
- */
- virtual bool is_valid() const;
- inline operator bool() const { return is_valid(); } ///< See is_valid()
- //@}
-
- virtual bool set_ogg_serial_number(long value); ///< See FLAC__stream_encoder_set_ogg_serial_number()
- virtual bool set_verify(bool value); ///< See FLAC__stream_encoder_set_verify()
- virtual bool set_streamable_subset(bool value); ///< See FLAC__stream_encoder_set_streamable_subset()
- virtual bool set_channels(unsigned value); ///< See FLAC__stream_encoder_set_channels()
- virtual bool set_bits_per_sample(unsigned value); ///< See FLAC__stream_encoder_set_bits_per_sample()
- virtual bool set_sample_rate(unsigned value); ///< See FLAC__stream_encoder_set_sample_rate()
- virtual bool set_compression_level(unsigned value); ///< See FLAC__stream_encoder_set_compression_level()
- virtual bool set_blocksize(unsigned value); ///< See FLAC__stream_encoder_set_blocksize()
- virtual bool set_do_mid_side_stereo(bool value); ///< See FLAC__stream_encoder_set_do_mid_side_stereo()
- virtual bool set_loose_mid_side_stereo(bool value); ///< See FLAC__stream_encoder_set_loose_mid_side_stereo()
- virtual bool set_apodization(const char *specification); ///< See FLAC__stream_encoder_set_apodization()
- virtual bool set_max_lpc_order(unsigned value); ///< See FLAC__stream_encoder_set_max_lpc_order()
- virtual bool set_qlp_coeff_precision(unsigned value); ///< See FLAC__stream_encoder_set_qlp_coeff_precision()
- virtual bool set_do_qlp_coeff_prec_search(bool value); ///< See FLAC__stream_encoder_set_do_qlp_coeff_prec_search()
- virtual bool set_do_escape_coding(bool value); ///< See FLAC__stream_encoder_set_do_escape_coding()
- virtual bool set_do_exhaustive_model_search(bool value); ///< See FLAC__stream_encoder_set_do_exhaustive_model_search()
- virtual bool set_min_residual_partition_order(unsigned value); ///< See FLAC__stream_encoder_set_min_residual_partition_order()
- virtual bool set_max_residual_partition_order(unsigned value); ///< See FLAC__stream_encoder_set_max_residual_partition_order()
- virtual bool set_rice_parameter_search_dist(unsigned value); ///< See FLAC__stream_encoder_set_rice_parameter_search_dist()
- virtual bool set_total_samples_estimate(FLAC__uint64 value); ///< See FLAC__stream_encoder_set_total_samples_estimate()
- virtual bool set_metadata(::FLAC__StreamMetadata **metadata, unsigned num_blocks); ///< See FLAC__stream_encoder_set_metadata()
- virtual bool set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks); ///< See FLAC__stream_encoder_set_metadata()
-
- /* get_state() is not virtual since we want subclasses to be able to return their own state */
- State get_state() const; ///< See FLAC__stream_encoder_get_state()
- virtual Decoder::Stream::State get_verify_decoder_state() const; ///< See FLAC__stream_encoder_get_verify_decoder_state()
- virtual void get_verify_decoder_error_stats(FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got); ///< See FLAC__stream_encoder_get_verify_decoder_error_stats()
- virtual bool get_verify() const; ///< See FLAC__stream_encoder_get_verify()
- virtual bool get_streamable_subset() const; ///< See FLAC__stream_encoder_get_streamable_subset()
- virtual bool get_do_mid_side_stereo() const; ///< See FLAC__stream_encoder_get_do_mid_side_stereo()
- virtual bool get_loose_mid_side_stereo() const; ///< See FLAC__stream_encoder_get_loose_mid_side_stereo()
- virtual unsigned get_channels() const; ///< See FLAC__stream_encoder_get_channels()
- virtual unsigned get_bits_per_sample() const; ///< See FLAC__stream_encoder_get_bits_per_sample()
- virtual unsigned get_sample_rate() const; ///< See FLAC__stream_encoder_get_sample_rate()
- virtual unsigned get_blocksize() const; ///< See FLAC__stream_encoder_get_blocksize()
- virtual unsigned get_max_lpc_order() const; ///< See FLAC__stream_encoder_get_max_lpc_order()
- virtual unsigned get_qlp_coeff_precision() const; ///< See FLAC__stream_encoder_get_qlp_coeff_precision()
- virtual bool get_do_qlp_coeff_prec_search() const; ///< See FLAC__stream_encoder_get_do_qlp_coeff_prec_search()
- virtual bool get_do_escape_coding() const; ///< See FLAC__stream_encoder_get_do_escape_coding()
- virtual bool get_do_exhaustive_model_search() const; ///< See FLAC__stream_encoder_get_do_exhaustive_model_search()
- virtual unsigned get_min_residual_partition_order() const; ///< See FLAC__stream_encoder_get_min_residual_partition_order()
- virtual unsigned get_max_residual_partition_order() const; ///< See FLAC__stream_encoder_get_max_residual_partition_order()
- virtual unsigned get_rice_parameter_search_dist() const; ///< See FLAC__stream_encoder_get_rice_parameter_search_dist()
- virtual FLAC__uint64 get_total_samples_estimate() const; ///< See FLAC__stream_encoder_get_total_samples_estimate()
-
- virtual ::FLAC__StreamEncoderInitStatus init(); ///< See FLAC__stream_encoder_init_stream()
- virtual ::FLAC__StreamEncoderInitStatus init_ogg(); ///< See FLAC__stream_encoder_init_ogg_stream()
-
- virtual bool finish(); ///< See FLAC__stream_encoder_finish()
-
- virtual bool process(const FLAC__int32 * const buffer[], unsigned samples); ///< See FLAC__stream_encoder_process()
- virtual bool process_interleaved(const FLAC__int32 buffer[], unsigned samples); ///< See FLAC__stream_encoder_process_interleaved()
- protected:
- /// See FLAC__StreamEncoderReadCallback
- virtual ::FLAC__StreamEncoderReadStatus read_callback(FLAC__byte buffer[], size_t *bytes);
-
- /// See FLAC__StreamEncoderWriteCallback
- virtual ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame) = 0;
-
- /// See FLAC__StreamEncoderSeekCallback
- virtual ::FLAC__StreamEncoderSeekStatus seek_callback(FLAC__uint64 absolute_byte_offset);
-
- /// See FLAC__StreamEncoderTellCallback
- virtual ::FLAC__StreamEncoderTellStatus tell_callback(FLAC__uint64 *absolute_byte_offset);
-
- /// See FLAC__StreamEncoderMetadataCallback
- virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata);
-
-#if (defined __BORLANDC__) || (defined __GNUG__ && (__GNUG__ < 2 || (__GNUG__ == 2 && __GNUC_MINOR__ < 96))) || (defined __SUNPRO_CC)
- // lame hack: some compilers can't see a protected encoder_ from nested State::resolved_as_cstring()
- friend State;
-#endif
- ::FLAC__StreamEncoder *encoder_;
-
- static ::FLAC__StreamEncoderReadStatus read_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
- static ::FLAC__StreamEncoderWriteStatus write_callback_(const ::FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
- static ::FLAC__StreamEncoderSeekStatus seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
- static ::FLAC__StreamEncoderTellStatus tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
- static void metadata_callback_(const ::FLAC__StreamEncoder *encoder, const ::FLAC__StreamMetadata *metadata, void *client_data);
- private:
- // Private and undefined so you can't use them:
- Stream(const Stream &);
- void operator=(const Stream &);
- };
-
- /** \ingroup flacpp_encoder
- * \brief
- * This class wraps the ::FLAC__StreamEncoder. If you are
- * not encoding to a file, you may need to use
- * FLAC::Encoder::Stream.
- *
- * The usage of this class is similar to FLAC__StreamEncoder,
- * except instead of providing callbacks to
- * FLAC__stream_encoder_init*_FILE() or
- * FLAC__stream_encoder_init*_file(), you will inherit from this
- * class and override the virtual callback functions with your
- * own implementations, then call init() or init_ogg(). The rest
- * of the calls work the same as in the C layer.
- *
- * There are no mandatory callbacks; all the callbacks from
- * FLAC::Encoder::Stream are implemented here fully and support
- * full post-encode STREAMINFO and SEEKTABLE updating. There is
- * only an optional progress callback which you may override to
- * get periodic reports on the progress of the encode.
- */
- class FLACPP_API File: public Stream {
- public:
- File();
- virtual ~File();
-
- using Stream::init;
- virtual ::FLAC__StreamEncoderInitStatus init(FILE *file); ///< See FLAC__stream_encoder_init_FILE()
- virtual ::FLAC__StreamEncoderInitStatus init(const char *filename); ///< See FLAC__stream_encoder_init_file()
- virtual ::FLAC__StreamEncoderInitStatus init(const std::string &filename); ///< See FLAC__stream_encoder_init_file()
- using Stream::init_ogg;
- virtual ::FLAC__StreamEncoderInitStatus init_ogg(FILE *file); ///< See FLAC__stream_encoder_init_ogg_FILE()
- virtual ::FLAC__StreamEncoderInitStatus init_ogg(const char *filename); ///< See FLAC__stream_encoder_init_ogg_file()
- virtual ::FLAC__StreamEncoderInitStatus init_ogg(const std::string &filename); ///< See FLAC__stream_encoder_init_ogg_file()
- protected:
- /// See FLAC__StreamEncoderProgressCallback
- virtual void progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate);
-
- /// This is a dummy implementation to satisfy the pure virtual in Stream that is actually supplied internally by the C layer
- virtual ::FLAC__StreamEncoderWriteStatus write_callback(const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame);
- private:
- static void progress_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data);
-
- // Private and undefined so you can't use them:
- File(const Stream &);
- void operator=(const Stream &);
- };
-
- }
-}
-
-#endif
+++ /dev/null
-/* libFLAC++ - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLACPP__EXPORT_H
-#define FLACPP__EXPORT_H
-
-/** \file include/FLAC++/export.h
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * See the \link flacpp_export export \endlink module.
- */
-
-/** \defgroup flacpp_export FLAC++/export.h: export symbols
- * \ingroup flacpp
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * If you are compiling with MSVC and will link to the static library
- * (libFLAC++.lib) you should define FLAC__NO_DLL in your project to
- * make sure the symbols are exported properly.
- *
- * \{
- */
-
-#if defined(FLAC__NO_DLL)
-#define FLACPP_API
-
-#elif defined(_MSC_VER)
-#ifdef FLACPP_API_EXPORTS
-#define FLACPP_API __declspec(dllexport)
-#else
-#define FLACPP_API __declspec(dllimport)
-#endif
-
-#elif defined(FLAC__USE_VISIBILITY_ATTR)
-#define FLACPP_API __attribute__ ((visibility ("default")))
-
-#else
-#define FLACPP_API
-
-#endif
-
-/* These #defines will mirror the libtool-based library version number, see
- * http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
- */
-#define FLACPP_API_VERSION_CURRENT 9
-#define FLACPP_API_VERSION_REVISION 0
-#define FLACPP_API_VERSION_AGE 3
-
-/* \} */
-
-#endif
+++ /dev/null
-/* libFLAC++ - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLACPP__METADATA_H
-#define FLACPP__METADATA_H
-
-#include "export.h"
-
-#include "FLAC/metadata.h"
-
-// ===============================================================
-//
-// Full documentation for the metadata interface can be found
-// in the C layer in include/FLAC/metadata.h
-//
-// ===============================================================
-
-/** \file include/FLAC++/metadata.h
- *
- * \brief
- * This module provides classes for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in FLAC files.
- *
- * See the detailed documentation for each interface in the
- * \link flacpp_metadata metadata \endlink module.
- */
-
-/** \defgroup flacpp_metadata FLAC++/metadata.h: metadata interfaces
- * \ingroup flacpp
- *
- * \brief
- * This module provides classes for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in FLAC files.
- *
- * The behavior closely mimics the C layer interface; be sure to read
- * the detailed description of the
- * \link flac_metadata C metadata module \endlink. Note that like the
- * C layer, currently only the Chain interface (level 2) supports Ogg
- * FLAC files, and it is read-only i.e. no writing back changed
- * metadata to file.
- */
-
-
-namespace FLAC {
- namespace Metadata {
-
- // ============================================================
- //
- // Metadata objects
- //
- // ============================================================
-
- /** \defgroup flacpp_metadata_object FLAC++/metadata.h: metadata object classes
- * \ingroup flacpp_metadata
- *
- * This module contains classes representing FLAC metadata
- * blocks in memory.
- *
- * The behavior closely mimics the C layer interface; be
- * sure to read the detailed description of the
- * \link flac_metadata_object C metadata object module \endlink.
- *
- * Any time a metadata object is constructed or assigned, you
- * should check is_valid() to make sure the underlying
- * ::FLAC__StreamMetadata object was able to be created.
- *
- * \warning
- * When the get_*() methods of any metadata object method
- * return you a const pointer, DO NOT disobey and write into it.
- * Always use the set_*() methods.
- *
- * \{
- */
-
- /** Base class for all metadata block types.
- * See the \link flacpp_metadata_object overview \endlink for more.
- */
- class FLACPP_API Prototype {
- protected:
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- Prototype(const Prototype &);
- Prototype(const ::FLAC__StreamMetadata &);
- Prototype(const ::FLAC__StreamMetadata *);
- //@}
-
- /** Constructs an object with copy control. When \a copy
- * is \c true, behaves identically to
- * FLAC::Metadata::Prototype::Prototype(const ::FLAC__StreamMetadata *object).
- * When \a copy is \c false, the instance takes ownership of
- * the pointer and the ::FLAC__StreamMetadata object will
- * be freed by the destructor.
- *
- * \assert
- * \code object != NULL \endcode
- */
- Prototype(::FLAC__StreamMetadata *object, bool copy);
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- Prototype &operator=(const Prototype &);
- Prototype &operator=(const ::FLAC__StreamMetadata &);
- Prototype &operator=(const ::FLAC__StreamMetadata *);
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- Prototype &assign_object(::FLAC__StreamMetadata *object, bool copy);
-
- /** Deletes the underlying ::FLAC__StreamMetadata object.
- */
- virtual void clear();
-
- ::FLAC__StreamMetadata *object_;
- public:
- /** Deletes the underlying ::FLAC__StreamMetadata object.
- */
- virtual ~Prototype();
-
- //@{
- /** Check for equality, performing a deep compare by following pointers.
- */
- inline bool operator==(const Prototype &) const;
- inline bool operator==(const ::FLAC__StreamMetadata &) const;
- inline bool operator==(const ::FLAC__StreamMetadata *) const;
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const Prototype &) const;
- inline bool operator!=(const ::FLAC__StreamMetadata &) const;
- inline bool operator!=(const ::FLAC__StreamMetadata *) const;
- //@}
-
- friend class SimpleIterator;
- friend class Iterator;
-
- /** Returns \c true if the object was correctly constructed
- * (i.e. the underlying ::FLAC__StreamMetadata object was
- * properly allocated), else \c false.
- */
- inline bool is_valid() const;
-
- /** Returns \c true if this block is the last block in a
- * stream, else \c false.
- *
- * \assert
- * \code is_valid() \endcode
- */
- bool get_is_last() const;
-
- /** Returns the type of the block.
- *
- * \assert
- * \code is_valid() \endcode
- */
- ::FLAC__MetadataType get_type() const;
-
- /** Returns the stream length of the metadata block.
- *
- * \note
- * The length does not include the metadata block header,
- * per spec.
- *
- * \assert
- * \code is_valid() \endcode
- */
- unsigned get_length() const;
-
- /** Sets the "is_last" flag for the block. When using the iterators
- * it is not necessary to set this flag; they will do it for you.
- *
- * \assert
- * \code is_valid() \endcode
- */
- void set_is_last(bool);
-
- /** Returns a pointer to the underlying ::FLAC__StreamMetadata
- * object. This can be useful for plugging any holes between
- * the C++ and C interfaces.
- *
- * \assert
- * \code is_valid() \endcode
- */
- inline operator const ::FLAC__StreamMetadata *() const;
- private:
- /** Private and undefined so you can't use it. */
- Prototype();
-
- // These are used only by Iterator
- bool is_reference_;
- inline void set_reference(bool x) { is_reference_ = x; }
- };
-
-#ifdef _MSC_VER
-// warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
-#pragma warning ( disable : 4800 )
-#endif
-
- inline bool Prototype::operator==(const Prototype &object) const
- { return (bool)::FLAC__metadata_object_is_equal(object_, object.object_); }
-
- inline bool Prototype::operator==(const ::FLAC__StreamMetadata &object) const
- { return (bool)::FLAC__metadata_object_is_equal(object_, &object); }
-
- inline bool Prototype::operator==(const ::FLAC__StreamMetadata *object) const
- { return (bool)::FLAC__metadata_object_is_equal(object_, object); }
-
-#ifdef _MSC_VER
-#pragma warning ( default : 4800 )
-#endif
-
- inline bool Prototype::operator!=(const Prototype &object) const
- { return !operator==(object); }
-
- inline bool Prototype::operator!=(const ::FLAC__StreamMetadata &object) const
- { return !operator==(object); }
-
- inline bool Prototype::operator!=(const ::FLAC__StreamMetadata *object) const
- { return !operator==(object); }
-
- inline bool Prototype::is_valid() const
- { return 0 != object_; }
-
- inline Prototype::operator const ::FLAC__StreamMetadata *() const
- { return object_; }
-
- /** Create a deep copy of an object and return it. */
- FLACPP_API Prototype *clone(const Prototype *);
-
-
- /** STREAMINFO metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_streaminfo">format specification</A>.
- */
- class FLACPP_API StreamInfo : public Prototype {
- public:
- StreamInfo();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline StreamInfo(const StreamInfo &object): Prototype(object) { }
- inline StreamInfo(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline StreamInfo(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline StreamInfo(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~StreamInfo();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline StreamInfo &operator=(const StreamInfo &object) { Prototype::operator=(object); return *this; }
- inline StreamInfo &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline StreamInfo &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline StreamInfo &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const StreamInfo &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const StreamInfo &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- //@{
- /** See <A HREF="../format.html#metadata_block_streaminfo">format specification</A>. */
- unsigned get_min_blocksize() const;
- unsigned get_max_blocksize() const;
- unsigned get_min_framesize() const;
- unsigned get_max_framesize() const;
- unsigned get_sample_rate() const;
- unsigned get_channels() const;
- unsigned get_bits_per_sample() const;
- FLAC__uint64 get_total_samples() const;
- const FLAC__byte *get_md5sum() const;
-
- void set_min_blocksize(unsigned value);
- void set_max_blocksize(unsigned value);
- void set_min_framesize(unsigned value);
- void set_max_framesize(unsigned value);
- void set_sample_rate(unsigned value);
- void set_channels(unsigned value);
- void set_bits_per_sample(unsigned value);
- void set_total_samples(FLAC__uint64 value);
- void set_md5sum(const FLAC__byte value[16]);
- //@}
- };
-
- /** PADDING metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_padding">format specification</A>.
- */
- class FLACPP_API Padding : public Prototype {
- public:
- Padding();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline Padding(const Padding &object): Prototype(object) { }
- inline Padding(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline Padding(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Padding(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- /** Constructs an object with the given length.
- */
- Padding(unsigned length);
-
- ~Padding();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline Padding &operator=(const Padding &object) { Prototype::operator=(object); return *this; }
- inline Padding &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline Padding &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Padding &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const Padding &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const Padding &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- /** Sets the length in bytes of the padding block.
- */
- void set_length(unsigned length);
- };
-
- /** APPLICATION metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_application">format specification</A>.
- */
- class FLACPP_API Application : public Prototype {
- public:
- Application();
- //
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline Application(const Application &object): Prototype(object) { }
- inline Application(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline Application(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Application(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~Application();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline Application &operator=(const Application &object) { Prototype::operator=(object); return *this; }
- inline Application &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline Application &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Application &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const Application &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const Application &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- const FLAC__byte *get_id() const;
- const FLAC__byte *get_data() const;
-
- void set_id(const FLAC__byte value[4]);
- //! This form always copies \a data
- bool set_data(const FLAC__byte *data, unsigned length);
- bool set_data(FLAC__byte *data, unsigned length, bool copy);
- };
-
- /** SEEKTABLE metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_seektable">format specification</A>.
- */
- class FLACPP_API SeekTable : public Prototype {
- public:
- SeekTable();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline SeekTable(const SeekTable &object): Prototype(object) { }
- inline SeekTable(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline SeekTable(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline SeekTable(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~SeekTable();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline SeekTable &operator=(const SeekTable &object) { Prototype::operator=(object); return *this; }
- inline SeekTable &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline SeekTable &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline SeekTable &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const SeekTable &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const SeekTable &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- unsigned get_num_points() const;
- ::FLAC__StreamMetadata_SeekPoint get_point(unsigned index) const;
-
- //! See FLAC__metadata_object_seektable_resize_points()
- bool resize_points(unsigned new_num_points);
-
- //! See FLAC__metadata_object_seektable_set_point()
- void set_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point);
-
- //! See FLAC__metadata_object_seektable_insert_point()
- bool insert_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point);
-
- //! See FLAC__metadata_object_seektable_delete_point()
- bool delete_point(unsigned index);
-
- //! See FLAC__metadata_object_seektable_is_legal()
- bool is_legal() const;
-
- //! See FLAC__metadata_object_seektable_template_append_placeholders()
- bool template_append_placeholders(unsigned num);
-
- //! See FLAC__metadata_object_seektable_template_append_point()
- bool template_append_point(FLAC__uint64 sample_number);
-
- //! See FLAC__metadata_object_seektable_template_append_points()
- bool template_append_points(FLAC__uint64 sample_numbers[], unsigned num);
-
- //! See FLAC__metadata_object_seektable_template_append_spaced_points()
- bool template_append_spaced_points(unsigned num, FLAC__uint64 total_samples);
-
- //! See FLAC__metadata_object_seektable_template_append_spaced_points_by_samples()
- bool template_append_spaced_points_by_samples(unsigned samples, FLAC__uint64 total_samples);
-
- //! See FLAC__metadata_object_seektable_template_sort()
- bool template_sort(bool compact);
- };
-
- /** VORBIS_COMMENT metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>.
- */
- class FLACPP_API VorbisComment : public Prototype {
- public:
- /** Convenience class for encapsulating Vorbis comment
- * entries. An entry is a vendor string or a comment
- * field. In the case of a vendor string, the field
- * name is undefined; only the field value is relevant.
- *
- * A \a field as used in the methods refers to an
- * entire 'NAME=VALUE' string; for convenience the
- * string is NUL-terminated. A length field is
- * required in the unlikely event that the value
- * contains contain embedded NULs.
- *
- * A \a field_name is what is on the left side of the
- * first '=' in the \a field. By definition it is ASCII
- * and so is NUL-terminated and does not require a
- * length to describe it. \a field_name is undefined
- * for a vendor string entry.
- *
- * A \a field_value is what is on the right side of the
- * first '=' in the \a field. By definition, this may
- * contain embedded NULs and so a \a field_value_length
- * is required to describe it. However in practice,
- * embedded NULs are not known to be used, so it is
- * generally safe to treat field values as NUL-
- * terminated UTF-8 strings.
- *
- * Always check is_valid() after the constructor or operator=
- * to make sure memory was properly allocated and that the
- * Entry conforms to the Vorbis comment specification.
- */
- class FLACPP_API Entry {
- public:
- Entry();
-
- Entry(const char *field, unsigned field_length);
- Entry(const char *field); // assumes \a field is NUL-terminated
-
- Entry(const char *field_name, const char *field_value, unsigned field_value_length);
- Entry(const char *field_name, const char *field_value); // assumes \a field_value is NUL-terminated
-
- Entry(const Entry &entry);
-
- Entry &operator=(const Entry &entry);
-
- virtual ~Entry();
-
- virtual bool is_valid() const; ///< Returns \c true iff object was properly constructed.
-
- unsigned get_field_length() const;
- unsigned get_field_name_length() const;
- unsigned get_field_value_length() const;
-
- ::FLAC__StreamMetadata_VorbisComment_Entry get_entry() const;
- const char *get_field() const;
- const char *get_field_name() const;
- const char *get_field_value() const;
-
- bool set_field(const char *field, unsigned field_length);
- bool set_field(const char *field); // assumes \a field is NUL-terminated
- bool set_field_name(const char *field_name);
- bool set_field_value(const char *field_value, unsigned field_value_length);
- bool set_field_value(const char *field_value); // assumes \a field_value is NUL-terminated
- protected:
- bool is_valid_;
- ::FLAC__StreamMetadata_VorbisComment_Entry entry_;
- char *field_name_;
- unsigned field_name_length_;
- char *field_value_;
- unsigned field_value_length_;
- private:
- void zero();
- void clear();
- void clear_entry();
- void clear_field_name();
- void clear_field_value();
- void construct(const char *field, unsigned field_length);
- void construct(const char *field); // assumes \a field is NUL-terminated
- void construct(const char *field_name, const char *field_value, unsigned field_value_length);
- void construct(const char *field_name, const char *field_value); // assumes \a field_value is NUL-terminated
- void compose_field();
- void parse_field();
- };
-
- VorbisComment();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline VorbisComment(const VorbisComment &object): Prototype(object) { }
- inline VorbisComment(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline VorbisComment(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline VorbisComment(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~VorbisComment();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline VorbisComment &operator=(const VorbisComment &object) { Prototype::operator=(object); return *this; }
- inline VorbisComment &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline VorbisComment &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline VorbisComment &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const VorbisComment &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const VorbisComment &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- unsigned get_num_comments() const;
- const FLAC__byte *get_vendor_string() const; // NUL-terminated UTF-8 string
- Entry get_comment(unsigned index) const;
-
- //! See FLAC__metadata_object_vorbiscomment_set_vendor_string()
- bool set_vendor_string(const FLAC__byte *string); // NUL-terminated UTF-8 string
-
- //! See FLAC__metadata_object_vorbiscomment_resize_comments()
- bool resize_comments(unsigned new_num_comments);
-
- //! See FLAC__metadata_object_vorbiscomment_set_comment()
- bool set_comment(unsigned index, const Entry &entry);
-
- //! See FLAC__metadata_object_vorbiscomment_insert_comment()
- bool insert_comment(unsigned index, const Entry &entry);
-
- //! See FLAC__metadata_object_vorbiscomment_append_comment()
- bool append_comment(const Entry &entry);
-
- //! See FLAC__metadata_object_vorbiscomment_replace_comment()
- bool replace_comment(const Entry &entry, bool all);
-
- //! See FLAC__metadata_object_vorbiscomment_delete_comment()
- bool delete_comment(unsigned index);
-
- //! See FLAC__metadata_object_vorbiscomment_find_entry_from()
- int find_entry_from(unsigned offset, const char *field_name);
-
- //! See FLAC__metadata_object_vorbiscomment_remove_entry_matching()
- int remove_entry_matching(const char *field_name);
-
- //! See FLAC__metadata_object_vorbiscomment_remove_entries_matching()
- int remove_entries_matching(const char *field_name);
- };
-
- /** CUESHEET metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_cuesheet">format specification</A>.
- */
- class FLACPP_API CueSheet : public Prototype {
- public:
- /** Convenience class for encapsulating a cue sheet
- * track.
- *
- * Always check is_valid() after the constructor or operator=
- * to make sure memory was properly allocated.
- */
- class FLACPP_API Track {
- protected:
- ::FLAC__StreamMetadata_CueSheet_Track *object_;
- public:
- Track();
- Track(const ::FLAC__StreamMetadata_CueSheet_Track *track);
- Track(const Track &track);
- Track &operator=(const Track &track);
-
- virtual ~Track();
-
- virtual bool is_valid() const; ///< Returns \c true iff object was properly constructed.
-
-
- inline FLAC__uint64 get_offset() const { return object_->offset; }
- inline FLAC__byte get_number() const { return object_->number; }
- inline const char *get_isrc() const { return object_->isrc; }
- inline unsigned get_type() const { return object_->type; }
- inline bool get_pre_emphasis() const { return object_->pre_emphasis; }
-
- inline FLAC__byte get_num_indices() const { return object_->num_indices; }
- ::FLAC__StreamMetadata_CueSheet_Index get_index(unsigned i) const;
-
- inline const ::FLAC__StreamMetadata_CueSheet_Track *get_track() const { return object_; }
-
- inline void set_offset(FLAC__uint64 value) { object_->offset = value; }
- inline void set_number(FLAC__byte value) { object_->number = value; }
- void set_isrc(const char value[12]);
- void set_type(unsigned value);
- inline void set_pre_emphasis(bool value) { object_->pre_emphasis = value? 1 : 0; }
-
- void set_index(unsigned i, const ::FLAC__StreamMetadata_CueSheet_Index &index);
- //@@@ It's awkward but to insert/delete index points
- //@@@ you must use the routines in the CueSheet class.
- };
-
- CueSheet();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline CueSheet(const CueSheet &object): Prototype(object) { }
- inline CueSheet(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline CueSheet(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline CueSheet(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~CueSheet();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline CueSheet &operator=(const CueSheet &object) { Prototype::operator=(object); return *this; }
- inline CueSheet &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline CueSheet &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline CueSheet &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const CueSheet &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const CueSheet &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- const char *get_media_catalog_number() const;
- FLAC__uint64 get_lead_in() const;
- bool get_is_cd() const;
-
- unsigned get_num_tracks() const;
- Track get_track(unsigned i) const;
-
- void set_media_catalog_number(const char value[128]);
- void set_lead_in(FLAC__uint64 value);
- void set_is_cd(bool value);
-
- void set_index(unsigned track_num, unsigned index_num, const ::FLAC__StreamMetadata_CueSheet_Index &index);
-
- //! See FLAC__metadata_object_cuesheet_track_resize_indices()
- bool resize_indices(unsigned track_num, unsigned new_num_indices);
-
- //! See FLAC__metadata_object_cuesheet_track_insert_index()
- bool insert_index(unsigned track_num, unsigned index_num, const ::FLAC__StreamMetadata_CueSheet_Index &index);
-
- //! See FLAC__metadata_object_cuesheet_track_insert_blank_index()
- bool insert_blank_index(unsigned track_num, unsigned index_num);
-
- //! See FLAC__metadata_object_cuesheet_track_delete_index()
- bool delete_index(unsigned track_num, unsigned index_num);
-
- //! See FLAC__metadata_object_cuesheet_resize_tracks()
- bool resize_tracks(unsigned new_num_tracks);
-
- //! See FLAC__metadata_object_cuesheet_set_track()
- bool set_track(unsigned i, const Track &track);
-
- //! See FLAC__metadata_object_cuesheet_insert_track()
- bool insert_track(unsigned i, const Track &track);
-
- //! See FLAC__metadata_object_cuesheet_insert_blank_track()
- bool insert_blank_track(unsigned i);
-
- //! See FLAC__metadata_object_cuesheet_delete_track()
- bool delete_track(unsigned i);
-
- //! See FLAC__metadata_object_cuesheet_is_legal()
- bool is_legal(bool check_cd_da_subset = false, const char **violation = 0) const;
-
- //! See FLAC__metadata_object_cuesheet_calculate_cddb_id()
- FLAC__uint32 calculate_cddb_id() const;
- };
-
- /** PICTURE metadata block.
- * See the \link flacpp_metadata_object overview \endlink for more,
- * and the <A HREF="../format.html#metadata_block_picture">format specification</A>.
- */
- class FLACPP_API Picture : public Prototype {
- public:
- Picture();
-
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline Picture(const Picture &object): Prototype(object) { }
- inline Picture(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline Picture(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Picture(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~Picture();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline Picture &operator=(const Picture &object) { Prototype::operator=(object); return *this; }
- inline Picture &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline Picture &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Picture &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const Picture &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const Picture &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- ::FLAC__StreamMetadata_Picture_Type get_type() const;
- const char *get_mime_type() const; // NUL-terminated printable ASCII string
- const FLAC__byte *get_description() const; // NUL-terminated UTF-8 string
- FLAC__uint32 get_width() const;
- FLAC__uint32 get_height() const;
- FLAC__uint32 get_depth() const;
- FLAC__uint32 get_colors() const; ///< a return value of \c 0 means true-color, i.e. 2^depth colors
- FLAC__uint32 get_data_length() const;
- const FLAC__byte *get_data() const;
-
- void set_type(::FLAC__StreamMetadata_Picture_Type type);
-
- //! See FLAC__metadata_object_picture_set_mime_type()
- bool set_mime_type(const char *string); // NUL-terminated printable ASCII string
-
- //! See FLAC__metadata_object_picture_set_description()
- bool set_description(const FLAC__byte *string); // NUL-terminated UTF-8 string
-
- void set_width(FLAC__uint32 value) const;
- void set_height(FLAC__uint32 value) const;
- void set_depth(FLAC__uint32 value) const;
- void set_colors(FLAC__uint32 value) const; ///< a value of \c 0 means true-color, i.e. 2^depth colors
-
- //! See FLAC__metadata_object_picture_set_data()
- bool set_data(const FLAC__byte *data, FLAC__uint32 data_length);
-
- //! See FLAC__metadata_object_picture_is_legal()
- bool is_legal(const char **violation);
- };
-
- /** Opaque metadata block for storing unknown types.
- * This should not be used unless you know what you are doing;
- * it is currently used only internally to support forward
- * compatibility of metadata blocks.
- * See the \link flacpp_metadata_object overview \endlink for more,
- */
- class FLACPP_API Unknown : public Prototype {
- public:
- Unknown();
- //
- //@{
- /** Constructs a copy of the given object. This form
- * always performs a deep copy.
- */
- inline Unknown(const Unknown &object): Prototype(object) { }
- inline Unknown(const ::FLAC__StreamMetadata &object): Prototype(object) { }
- inline Unknown(const ::FLAC__StreamMetadata *object): Prototype(object) { }
- //@}
-
- /** Constructs an object with copy control. See
- * Prototype(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Unknown(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { }
-
- ~Unknown();
-
- //@{
- /** Assign from another object. Always performs a deep copy. */
- inline Unknown &operator=(const Unknown &object) { Prototype::operator=(object); return *this; }
- inline Unknown &operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); return *this; }
- inline Unknown &operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); return *this; }
- //@}
-
- /** Assigns an object with copy control. See
- * Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy).
- */
- inline Unknown &assign(::FLAC__StreamMetadata *object, bool copy) { Prototype::assign_object(object, copy); return *this; }
-
- //@{
- /** Check for equality, performing a deep compare by following pointers. */
- inline bool operator==(const Unknown &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); }
- inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); }
- //@}
-
- //@{
- /** Check for inequality, performing a deep compare by following pointers. */
- inline bool operator!=(const Unknown &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); }
- inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); }
- //@}
-
- const FLAC__byte *get_data() const;
-
- //! This form always copies \a data
- bool set_data(const FLAC__byte *data, unsigned length);
- bool set_data(FLAC__byte *data, unsigned length, bool copy);
- };
-
- /* \} */
-
-
- /** \defgroup flacpp_metadata_level0 FLAC++/metadata.h: metadata level 0 interface
- * \ingroup flacpp_metadata
- *
- * \brief
- * Level 0 metadata iterators.
- *
- * See the \link flac_metadata_level0 C layer equivalent \endlink
- * for more.
- *
- * \{
- */
-
- FLACPP_API bool get_streaminfo(const char *filename, StreamInfo &streaminfo); ///< See FLAC__metadata_get_streaminfo().
-
- FLACPP_API bool get_tags(const char *filename, VorbisComment *&tags); ///< See FLAC__metadata_get_tags().
- FLACPP_API bool get_tags(const char *filename, VorbisComment &tags); ///< See FLAC__metadata_get_tags().
-
- FLACPP_API bool get_cuesheet(const char *filename, CueSheet *&cuesheet); ///< See FLAC__metadata_get_cuesheet().
- FLACPP_API bool get_cuesheet(const char *filename, CueSheet &cuesheet); ///< See FLAC__metadata_get_cuesheet().
-
- FLACPP_API bool get_picture(const char *filename, Picture *&picture, ::FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors); ///< See FLAC__metadata_get_picture().
- FLACPP_API bool get_picture(const char *filename, Picture &picture, ::FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors); ///< See FLAC__metadata_get_picture().
-
- /* \} */
-
-
- /** \defgroup flacpp_metadata_level1 FLAC++/metadata.h: metadata level 1 interface
- * \ingroup flacpp_metadata
- *
- * \brief
- * Level 1 metadata iterator.
- *
- * The flow through the iterator in the C++ layer is similar
- * to the C layer:
- * - Create a SimpleIterator instance
- * - Check SimpleIterator::is_valid()
- * - Call SimpleIterator::init() and check the return
- * - Traverse and/or edit. Edits are written to file
- * immediately.
- * - Destroy the SimpleIterator instance
- *
- * The ownership of pointers in the C++ layer follows that in
- * the C layer, i.e.
- * - The objects returned by get_block() are yours to
- * modify, but changes are not reflected in the FLAC file
- * until you call set_block(). The objects are also
- * yours to delete; they are not automatically deleted
- * when passed to set_block() or insert_block_after().
- *
- * See the \link flac_metadata_level1 C layer equivalent \endlink
- * for more.
- *
- * \{
- */
-
- /** This class is a wrapper around the FLAC__metadata_simple_iterator
- * structures and methods; see the
- * \link flacpp_metadata_level1 usage guide \endlink and
- * ::FLAC__Metadata_SimpleIterator.
- */
- class FLACPP_API SimpleIterator {
- public:
- /** This class is a wrapper around FLAC__Metadata_SimpleIteratorStatus.
- */
- class FLACPP_API Status {
- public:
- inline Status(::FLAC__Metadata_SimpleIteratorStatus status): status_(status) { }
- inline operator ::FLAC__Metadata_SimpleIteratorStatus() const { return status_; }
- inline const char *as_cstring() const { return ::FLAC__Metadata_SimpleIteratorStatusString[status_]; }
- protected:
- ::FLAC__Metadata_SimpleIteratorStatus status_;
- };
-
- SimpleIterator();
- virtual ~SimpleIterator();
-
- bool is_valid() const; ///< Returns \c true iff object was properly constructed.
-
- bool init(const char *filename, bool read_only, bool preserve_file_stats); ///< See FLAC__metadata_simple_iterator_init().
-
- Status status(); ///< See FLAC__metadata_simple_iterator_status().
- bool is_writable() const; ///< See FLAC__metadata_simple_iterator_is_writable().
-
- bool next(); ///< See FLAC__metadata_simple_iterator_next().
- bool prev(); ///< See FLAC__metadata_simple_iterator_prev().
- bool is_last() const; ///< See FLAC__metadata_simple_iterator_is_last().
-
- off_t get_block_offset() const; ///< See FLAC__metadata_simple_iterator_get_block_offset().
- ::FLAC__MetadataType get_block_type() const; ///< See FLAC__metadata_simple_iterator_get_block_type().
- unsigned get_block_length() const; ///< See FLAC__metadata_simple_iterator_get_block_length().
- bool get_application_id(FLAC__byte *id); ///< See FLAC__metadata_simple_iterator_get_application_id().
- Prototype *get_block(); ///< See FLAC__metadata_simple_iterator_get_block().
- bool set_block(Prototype *block, bool use_padding = true); ///< See FLAC__metadata_simple_iterator_set_block().
- bool insert_block_after(Prototype *block, bool use_padding = true); ///< See FLAC__metadata_simple_iterator_insert_block_after().
- bool delete_block(bool use_padding = true); ///< See FLAC__metadata_simple_iterator_delete_block().
-
- protected:
- ::FLAC__Metadata_SimpleIterator *iterator_;
- void clear();
-
- private: // Do not use.
- SimpleIterator(const SimpleIterator&);
- SimpleIterator&operator=(const SimpleIterator&);
- };
-
- /* \} */
-
-
- /** \defgroup flacpp_metadata_level2 FLAC++/metadata.h: metadata level 2 interface
- * \ingroup flacpp_metadata
- *
- * \brief
- * Level 2 metadata iterator.
- *
- * The flow through the iterator in the C++ layer is similar
- * to the C layer:
- * - Create a Chain instance
- * - Check Chain::is_valid()
- * - Call Chain::read() and check the return
- * - Traverse and/or edit with an Iterator or with
- * Chain::merge_padding() or Chain::sort_padding()
- * - Write changes back to FLAC file with Chain::write()
- * - Destroy the Chain instance
- *
- * The ownership of pointers in the C++ layer is slightly
- * different than in the C layer, i.e.
- * - The objects returned by Iterator::get_block() are NOT
- * owned by the iterator and should be deleted by the
- * caller when finished, BUT, when you modify the block,
- * it will directly edit what's in the chain and you do
- * not need to call Iterator::set_block(). However the
- * changes will not be reflected in the FLAC file until
- * the chain is written with Chain::write().
- * - When you pass an object to Iterator::set_block(),
- * Iterator::insert_block_before(), or
- * Iterator::insert_block_after(), the iterator takes
- * ownership of the block and it will be deleted by the
- * chain.
- *
- * See the \link flac_metadata_level2 C layer equivalent \endlink
- * for more.
- *
- * \{
- */
-
- /** This class is a wrapper around the FLAC__metadata_chain
- * structures and methods; see the
- * \link flacpp_metadata_level2 usage guide \endlink and
- * ::FLAC__Metadata_Chain.
- */
- class FLACPP_API Chain {
- public:
- /** This class is a wrapper around FLAC__Metadata_ChainStatus.
- */
- class FLACPP_API Status {
- public:
- inline Status(::FLAC__Metadata_ChainStatus status): status_(status) { }
- inline operator ::FLAC__Metadata_ChainStatus() const { return status_; }
- inline const char *as_cstring() const { return ::FLAC__Metadata_ChainStatusString[status_]; }
- protected:
- ::FLAC__Metadata_ChainStatus status_;
- };
-
- Chain();
- virtual ~Chain();
-
- friend class Iterator;
-
- bool is_valid() const; ///< Returns \c true iff object was properly constructed.
-
- Status status(); ///< See FLAC__metadata_chain_status().
-
- bool read(const char *filename, bool is_ogg = false); ///< See FLAC__metadata_chain_read(), FLAC__metadata_chain_read_ogg().
- bool read(FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, bool is_ogg = false); ///< See FLAC__metadata_chain_read_with_callbacks(), FLAC__metadata_chain_read_ogg_with_callbacks().
-
- bool check_if_tempfile_needed(bool use_padding); ///< See FLAC__metadata_chain_check_if_tempfile_needed().
-
- bool write(bool use_padding = true, bool preserve_file_stats = false); ///< See FLAC__metadata_chain_write().
- bool write(bool use_padding, ::FLAC__IOHandle handle, ::FLAC__IOCallbacks callbacks); ///< See FLAC__metadata_chain_write_with_callbacks().
- bool write(bool use_padding, ::FLAC__IOHandle handle, ::FLAC__IOCallbacks callbacks, ::FLAC__IOHandle temp_handle, ::FLAC__IOCallbacks temp_callbacks); ///< See FLAC__metadata_chain_write_with_callbacks_and_tempfile().
-
- void merge_padding(); ///< See FLAC__metadata_chain_merge_padding().
- void sort_padding(); ///< See FLAC__metadata_chain_sort_padding().
-
- protected:
- ::FLAC__Metadata_Chain *chain_;
- virtual void clear();
-
- private: // Do not use.
- Chain(const Chain&);
- Chain&operator=(const Chain&);
- };
-
- /** This class is a wrapper around the FLAC__metadata_iterator
- * structures and methods; see the
- * \link flacpp_metadata_level2 usage guide \endlink and
- * ::FLAC__Metadata_Iterator.
- */
- class FLACPP_API Iterator {
- public:
- Iterator();
- virtual ~Iterator();
-
- bool is_valid() const; ///< Returns \c true iff object was properly constructed.
-
-
- void init(Chain &chain); ///< See FLAC__metadata_iterator_init().
-
- bool next(); ///< See FLAC__metadata_iterator_next().
- bool prev(); ///< See FLAC__metadata_iterator_prev().
-
- ::FLAC__MetadataType get_block_type() const; ///< See FLAC__metadata_iterator_get_block_type().
- Prototype *get_block(); ///< See FLAC__metadata_iterator_get_block().
- bool set_block(Prototype *block); ///< See FLAC__metadata_iterator_set_block().
- bool delete_block(bool replace_with_padding); ///< See FLAC__metadata_iterator_delete_block().
- bool insert_block_before(Prototype *block); ///< See FLAC__metadata_iterator_insert_block_before().
- bool insert_block_after(Prototype *block); ///< See FLAC__metadata_iterator_insert_block_after().
-
- protected:
- ::FLAC__Metadata_Iterator *iterator_;
- virtual void clear();
-
- private: // Do not use.
- Iterator(const Iterator&);
- Iterator&operator=(const Iterator&);
- };
-
- /* \} */
-
- }
-}
-
-#endif
+++ /dev/null
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2000-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
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-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-flaccincludedir = $(includedir)/FLAC
-
-flaccinclude_HEADERS = \
- all.h \
- assert.h \
- callback.h \
- export.h \
- format.h \
- metadata.h \
- ordinals.h \
- stream_decoder.h \
- stream_encoder.h
+++ /dev/null
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-# modification, are permitted provided that the following conditions
-# are met:
-#
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-# notice, this list of conditions and the following disclaimer.
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-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ALL_H
-#define FLAC__ALL_H
-
-#include "export.h"
-
-#include "assert.h"
-#include "callback.h"
-#include "format.h"
-#include "metadata.h"
-#include "ordinals.h"
-#include "stream_decoder.h"
-#include "stream_encoder.h"
-
-/** \mainpage
- *
- * \section intro Introduction
- *
- * This is the documentation for the FLAC C and C++ APIs. It is
- * highly interconnected; this introduction should give you a top
- * level idea of the structure and how to find the information you
- * need. As a prerequisite you should have at least a basic
- * knowledge of the FLAC format, documented
- * <A HREF="../format.html">here</A>.
- *
- * \section c_api FLAC C API
- *
- * The FLAC C API is the interface to libFLAC, a set of structures
- * describing the components of FLAC streams, and functions for
- * encoding and decoding streams, as well as manipulating FLAC
- * metadata in files. The public include files will be installed
- * in your include area (for example /usr/include/FLAC/...).
- *
- * By writing a little code and linking against libFLAC, it is
- * relatively easy to add FLAC support to another program. The
- * library is licensed under <A HREF="../license.html">Xiph's BSD license</A>.
- * Complete source code of libFLAC as well as the command-line
- * encoder and plugins is available and is a useful source of
- * examples.
- *
- * Aside from encoders and decoders, libFLAC provides a powerful
- * metadata interface for manipulating metadata in FLAC files. It
- * allows the user to add, delete, and modify FLAC metadata blocks
- * and it can automatically take advantage of PADDING blocks to avoid
- * rewriting the entire FLAC file when changing the size of the
- * metadata.
- *
- * libFLAC usually only requires the standard C library and C math
- * library. In particular, threading is not used so there is no
- * dependency on a thread library. However, libFLAC does not use
- * global variables and should be thread-safe.
- *
- * libFLAC also supports encoding to and decoding from Ogg FLAC.
- * However the metadata editing interfaces currently have limited
- * read-only support for Ogg FLAC files.
- *
- * \section cpp_api FLAC C++ API
- *
- * The FLAC C++ API is a set of classes that encapsulate the
- * structures and functions in libFLAC. They provide slightly more
- * functionality with respect to metadata but are otherwise
- * equivalent. For the most part, they share the same usage as
- * their counterparts in libFLAC, and the FLAC C API documentation
- * can be used as a supplement. The public include files
- * for the C++ API will be installed in your include area (for
- * example /usr/include/FLAC++/...).
- *
- * libFLAC++ is also licensed under
- * <A HREF="../license.html">Xiph's BSD license</A>.
- *
- * \section getting_started Getting Started
- *
- * A good starting point for learning the API is to browse through
- * the <A HREF="modules.html">modules</A>. Modules are logical
- * groupings of related functions or classes, which correspond roughly
- * to header files or sections of header files. Each module includes a
- * detailed description of the general usage of its functions or
- * classes.
- *
- * From there you can go on to look at the documentation of
- * individual functions. You can see different views of the individual
- * functions through the links in top bar across this page.
- *
- * If you prefer a more hands-on approach, you can jump right to some
- * <A HREF="../documentation_example_code.html">example code</A>.
- *
- * \section porting_guide Porting Guide
- *
- * Starting with FLAC 1.1.3 a \link porting Porting Guide \endlink
- * has been introduced which gives detailed instructions on how to
- * port your code to newer versions of FLAC.
- *
- * \section embedded_developers Embedded Developers
- *
- * libFLAC has grown larger over time as more functionality has been
- * included, but much of it may be unnecessary for a particular embedded
- * implementation. Unused parts may be pruned by some simple editing of
- * src/libFLAC/Makefile.am. In general, the decoders, encoders, and
- * metadata interface are all independent from each other.
- *
- * It is easiest to just describe the dependencies:
- *
- * - All modules depend on the \link flac_format Format \endlink module.
- * - The decoders and encoders depend on the bitbuffer.
- * - The decoder is independent of the encoder. The encoder uses the
- * decoder because of the verify feature, but this can be removed if
- * not needed.
- * - Parts of the metadata interface require the stream decoder (but not
- * the encoder).
- * - Ogg support is selectable through the compile time macro
- * \c FLAC__HAS_OGG.
- *
- * For example, if your application only requires the stream decoder, no
- * encoder, and no metadata interface, you can remove the stream encoder
- * and the metadata interface, which will greatly reduce the size of the
- * library.
- *
- * Also, there are several places in the libFLAC code with comments marked
- * with "OPT:" where a #define can be changed to enable code that might be
- * faster on a specific platform. Experimenting with these can yield faster
- * binaries.
- */
-
-/** \defgroup porting Porting Guide for New Versions
- *
- * This module describes differences in the library interfaces from
- * version to version. It assists in the porting of code that uses
- * the libraries to newer versions of FLAC.
- *
- * One simple facility for making porting easier that has been added
- * in FLAC 1.1.3 is a set of \c #defines in \c export.h of each
- * library's includes (e.g. \c include/FLAC/export.h). The
- * \c #defines mirror the libraries'
- * <A HREF="http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning">libtool version numbers</A>,
- * e.g. in libFLAC there are \c FLAC_API_VERSION_CURRENT,
- * \c FLAC_API_VERSION_REVISION, and \c FLAC_API_VERSION_AGE.
- * These can be used to support multiple versions of an API during the
- * transition phase, e.g.
- *
- * \code
- * #if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
- * legacy code
- * #else
- * new code
- * #endif
- * \endcode
- *
- * The source will work for multiple versions and the legacy code can
- * easily be removed when the transition is complete.
- *
- * Another available symbol is FLAC_API_SUPPORTS_OGG_FLAC (defined in
- * include/FLAC/export.h), which can be used to determine whether or not
- * the library has been compiled with support for Ogg FLAC. This is
- * simpler than trying to call an Ogg init function and catching the
- * error.
- */
-
-/** \defgroup porting_1_1_2_to_1_1_3 Porting from FLAC 1.1.2 to 1.1.3
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.2 to FLAC 1.1.3.
- *
- * The main change between the APIs in 1.1.2 and 1.1.3 is that they have
- * been simplified. First, libOggFLAC has been merged into libFLAC and
- * libOggFLAC++ has been merged into libFLAC++. Second, both the three
- * decoding layers and three encoding layers have been merged into a
- * single stream decoder and stream encoder. That is, the functionality
- * of FLAC__SeekableStreamDecoder and FLAC__FileDecoder has been merged
- * into FLAC__StreamDecoder, and FLAC__SeekableStreamEncoder and
- * FLAC__FileEncoder into FLAC__StreamEncoder. Only the
- * FLAC__StreamDecoder and FLAC__StreamEncoder remain. What this means
- * is there is now a single API that can be used to encode or decode
- * streams to/from native FLAC or Ogg FLAC and the single API can work
- * on both seekable and non-seekable streams.
- *
- * Instead of creating an encoder or decoder of a certain layer, now the
- * client will always create a FLAC__StreamEncoder or
- * FLAC__StreamDecoder. The old layers are now differentiated by the
- * initialization function. For example, for the decoder,
- * FLAC__stream_decoder_init() has been replaced by
- * FLAC__stream_decoder_init_stream(). This init function takes
- * callbacks for the I/O, and the seeking callbacks are optional. This
- * allows the client to use the same object for seekable and
- * non-seekable streams. For decoding a FLAC file directly, the client
- * can use FLAC__stream_decoder_init_file() and pass just a filename
- * and fewer callbacks; most of the other callbacks are supplied
- * internally. For situations where fopen()ing by filename is not
- * possible (e.g. Unicode filenames on Windows) the client can instead
- * open the file itself and supply the FILE* to
- * FLAC__stream_decoder_init_FILE(). The init functions now returns a
- * FLAC__StreamDecoderInitStatus instead of FLAC__StreamDecoderState.
- * Since the callbacks and client data are now passed to the init
- * function, the FLAC__stream_decoder_set_*_callback() functions and
- * FLAC__stream_decoder_set_client_data() are no longer needed. The
- * rest of the calls to the decoder are the same as before.
- *
- * There are counterpart init functions for Ogg FLAC, e.g.
- * FLAC__stream_decoder_init_ogg_stream(). All the rest of the calls
- * and callbacks are the same as for native FLAC.
- *
- * As an example, in FLAC 1.1.2 a seekable stream decoder would have
- * been set up like so:
- *
- * \code
- * FLAC__SeekableStreamDecoder *decoder = FLAC__seekable_stream_decoder_new();
- * if(decoder == NULL) do_something;
- * FLAC__seekable_stream_decoder_set_md5_checking(decoder, true);
- * [... other settings ...]
- * FLAC__seekable_stream_decoder_set_read_callback(decoder, my_read_callback);
- * FLAC__seekable_stream_decoder_set_seek_callback(decoder, my_seek_callback);
- * FLAC__seekable_stream_decoder_set_tell_callback(decoder, my_tell_callback);
- * FLAC__seekable_stream_decoder_set_length_callback(decoder, my_length_callback);
- * FLAC__seekable_stream_decoder_set_eof_callback(decoder, my_eof_callback);
- * FLAC__seekable_stream_decoder_set_write_callback(decoder, my_write_callback);
- * FLAC__seekable_stream_decoder_set_metadata_callback(decoder, my_metadata_callback);
- * FLAC__seekable_stream_decoder_set_error_callback(decoder, my_error_callback);
- * FLAC__seekable_stream_decoder_set_client_data(decoder, my_client_data);
- * if(FLAC__seekable_stream_decoder_init(decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK) do_something;
- * \endcode
- *
- * In FLAC 1.1.3 it is like this:
- *
- * \code
- * FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new();
- * if(decoder == NULL) do_something;
- * FLAC__stream_decoder_set_md5_checking(decoder, true);
- * [... other settings ...]
- * if(FLAC__stream_decoder_init_stream(
- * decoder,
- * my_read_callback,
- * my_seek_callback, // or NULL
- * my_tell_callback, // or NULL
- * my_length_callback, // or NULL
- * my_eof_callback, // or NULL
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * or you could do;
- *
- * \code
- * [...]
- * FILE *file = fopen("somefile.flac","rb");
- * if(file == NULL) do_somthing;
- * if(FLAC__stream_decoder_init_FILE(
- * decoder,
- * file,
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * or just:
- *
- * \code
- * [...]
- * if(FLAC__stream_decoder_init_file(
- * decoder,
- * "somefile.flac",
- * my_write_callback,
- * my_metadata_callback, // or NULL
- * my_error_callback,
- * my_client_data
- * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
- * \endcode
- *
- * Another small change to the decoder is in how it handles unparseable
- * streams. Before, when the decoder found an unparseable stream
- * (reserved for when the decoder encounters a stream from a future
- * encoder that it can't parse), it changed the state to
- * \c FLAC__STREAM_DECODER_UNPARSEABLE_STREAM. Now the decoder instead
- * drops sync and calls the error callback with a new error code
- * \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM. This is
- * more robust. If your error callback does not discriminate on the the
- * error state, your code does not need to be changed.
- *
- * The encoder now has a new setting:
- * FLAC__stream_encoder_set_apodization(). This is for setting the
- * method used to window the data before LPC analysis. You only need to
- * add a call to this function if the default is not suitable. There
- * are also two new convenience functions that may be useful:
- * FLAC__metadata_object_cuesheet_calculate_cddb_id() and
- * FLAC__metadata_get_cuesheet().
- *
- * The \a bytes parameter to FLAC__StreamDecoderReadCallback,
- * FLAC__StreamEncoderReadCallback, and FLAC__StreamEncoderWriteCallback
- * is now \c size_t instead of \c unsigned.
- */
-
-/** \defgroup porting_1_1_3_to_1_1_4 Porting from FLAC 1.1.3 to 1.1.4
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.3 to FLAC 1.1.4.
- *
- * There were no changes to any of the interfaces from 1.1.3 to 1.1.4.
- * There was a slight change in the implementation of
- * FLAC__stream_encoder_set_metadata(); the function now makes a copy
- * of the \a metadata array of pointers so the client no longer needs
- * to maintain it after the call. The objects themselves that are
- * pointed to by the array are still not copied though and must be
- * maintained until the call to FLAC__stream_encoder_finish().
- */
-
-/** \defgroup porting_1_1_4_to_1_2_0 Porting from FLAC 1.1.4 to 1.2.0
- * \ingroup porting
- *
- * \brief
- * This module describes porting from FLAC 1.1.4 to FLAC 1.2.0.
- *
- * There were only very minor changes to the interfaces from 1.1.4 to 1.2.0.
- * In libFLAC, \c FLAC__format_sample_rate_is_subset() was added.
- * In libFLAC++, \c FLAC::Decoder::Stream::get_decode_position() was added.
- *
- * Finally, value of the constant \c FLAC__FRAME_HEADER_RESERVED_LEN
- * has changed to reflect the conversion of one of the reserved bits
- * into active use. It used to be \c 2 and now is \c 1. However the
- * FLAC frame header length has not changed, so to skip the proper
- * number of bits, use \c FLAC__FRAME_HEADER_RESERVED_LEN +
- * \c FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN
- */
-
-/** \defgroup flac FLAC C API
- *
- * The FLAC C API is the interface to libFLAC, a set of structures
- * describing the components of FLAC streams, and functions for
- * encoding and decoding streams, as well as manipulating FLAC
- * metadata in files.
- *
- * You should start with the format components as all other modules
- * are dependent on it.
- */
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ASSERT_H
-#define FLAC__ASSERT_H
-
-/* we need this since some compilers (like MSVC) leave assert()s on release code (and we don't want to use their ASSERT) */
-#ifdef DEBUG
-#include <assert.h>
-#define FLAC__ASSERT(x) assert(x)
-#define FLAC__ASSERT_DECLARATION(x) x
-#else
-#define FLAC__ASSERT(x)
-#define FLAC__ASSERT_DECLARATION(x)
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__CALLBACK_H
-#define FLAC__CALLBACK_H
-
-#include "ordinals.h"
-#include <stdlib.h> /* for size_t */
-
-/** \file include/FLAC/callback.h
- *
- * \brief
- * This module defines the structures for describing I/O callbacks
- * to the other FLAC interfaces.
- *
- * See the detailed documentation for callbacks in the
- * \link flac_callbacks callbacks \endlink module.
- */
-
-/** \defgroup flac_callbacks FLAC/callback.h: I/O callback structures
- * \ingroup flac
- *
- * \brief
- * This module defines the structures for describing I/O callbacks
- * to the other FLAC interfaces.
- *
- * The purpose of the I/O callback functions is to create a common way
- * for the metadata interfaces to handle I/O.
- *
- * Originally the metadata interfaces required filenames as the way of
- * specifying FLAC files to operate on. This is problematic in some
- * environments so there is an additional option to specify a set of
- * callbacks for doing I/O on the FLAC file, instead of the filename.
- *
- * In addition to the callbacks, a FLAC__IOHandle type is defined as an
- * opaque structure for a data source.
- *
- * The callback function prototypes are similar (but not identical) to the
- * stdio functions fread, fwrite, fseek, ftell, feof, and fclose. If you use
- * stdio streams to implement the callbacks, you can pass fread, fwrite, and
- * fclose anywhere a FLAC__IOCallback_Read, FLAC__IOCallback_Write, or
- * FLAC__IOCallback_Close is required, and a FILE* anywhere a FLAC__IOHandle
- * is required. \warning You generally CANNOT directly use fseek or ftell
- * for FLAC__IOCallback_Seek or FLAC__IOCallback_Tell since on most systems
- * these use 32-bit offsets and FLAC requires 64-bit offsets to deal with
- * large files. You will have to find an equivalent function (e.g. ftello),
- * or write a wrapper. The same is true for feof() since this is usually
- * implemented as a macro, not as a function whose address can be taken.
- *
- * \{
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** This is the opaque handle type used by the callbacks. Typically
- * this is a \c FILE* or address of a file descriptor.
- */
-typedef void* FLAC__IOHandle;
-
-/** Signature for the read callback.
- * The signature and semantics match POSIX fread() implementations
- * and can generally be used interchangeably.
- *
- * \param ptr The address of the read buffer.
- * \param size The size of the records to be read.
- * \param nmemb The number of records to be read.
- * \param handle The handle to the data source.
- * \retval size_t
- * The number of records read.
- */
-typedef size_t (*FLAC__IOCallback_Read) (void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
-
-/** Signature for the write callback.
- * The signature and semantics match POSIX fwrite() implementations
- * and can generally be used interchangeably.
- *
- * \param ptr The address of the write buffer.
- * \param size The size of the records to be written.
- * \param nmemb The number of records to be written.
- * \param handle The handle to the data source.
- * \retval size_t
- * The number of records written.
- */
-typedef size_t (*FLAC__IOCallback_Write) (const void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
-
-/** Signature for the seek callback.
- * The signature and semantics mostly match POSIX fseek() WITH ONE IMPORTANT
- * EXCEPTION: the offset is a 64-bit type whereas fseek() is generally 'long'
- * and 32-bits wide.
- *
- * \param handle The handle to the data source.
- * \param offset The new position, relative to \a whence
- * \param whence \c SEEK_SET, \c SEEK_CUR, or \c SEEK_END
- * \retval int
- * \c 0 on success, \c -1 on error.
- */
-typedef int (*FLAC__IOCallback_Seek) (FLAC__IOHandle handle, FLAC__int64 offset, int whence);
-
-/** Signature for the tell callback.
- * The signature and semantics mostly match POSIX ftell() WITH ONE IMPORTANT
- * EXCEPTION: the offset is a 64-bit type whereas ftell() is generally 'long'
- * and 32-bits wide.
- *
- * \param handle The handle to the data source.
- * \retval FLAC__int64
- * The current position on success, \c -1 on error.
- */
-typedef FLAC__int64 (*FLAC__IOCallback_Tell) (FLAC__IOHandle handle);
-
-/** Signature for the EOF callback.
- * The signature and semantics mostly match POSIX feof() but WATCHOUT:
- * on many systems, feof() is a macro, so in this case a wrapper function
- * must be provided instead.
- *
- * \param handle The handle to the data source.
- * \retval int
- * \c 0 if not at end of file, nonzero if at end of file.
- */
-typedef int (*FLAC__IOCallback_Eof) (FLAC__IOHandle handle);
-
-/** Signature for the close callback.
- * The signature and semantics match POSIX fclose() implementations
- * and can generally be used interchangeably.
- *
- * \param handle The handle to the data source.
- * \retval int
- * \c 0 on success, \c EOF on error.
- */
-typedef int (*FLAC__IOCallback_Close) (FLAC__IOHandle handle);
-
-/** A structure for holding a set of callbacks.
- * Each FLAC interface that requires a FLAC__IOCallbacks structure will
- * describe which of the callbacks are required. The ones that are not
- * required may be set to NULL.
- *
- * If the seek requirement for an interface is optional, you can signify that
- * a data sorce is not seekable by setting the \a seek field to \c NULL.
- */
-typedef struct {
- FLAC__IOCallback_Read read;
- FLAC__IOCallback_Write write;
- FLAC__IOCallback_Seek seek;
- FLAC__IOCallback_Tell tell;
- FLAC__IOCallback_Eof eof;
- FLAC__IOCallback_Close close;
-} FLAC__IOCallbacks;
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__EXPORT_H
-#define FLAC__EXPORT_H
-
-/** \file include/FLAC/export.h
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * See the \link flac_export export \endlink module.
- */
-
-/** \defgroup flac_export FLAC/export.h: export symbols
- * \ingroup flac
- *
- * \brief
- * This module contains #defines and symbols for exporting function
- * calls, and providing version information and compiled-in features.
- *
- * If you are compiling with MSVC and will link to the static library
- * (libFLAC.lib) you should define FLAC__NO_DLL in your project to
- * make sure the symbols are exported properly.
- *
- * \{
- */
-
-#if defined(FLAC__NO_DLL)
-#define FLAC_API
-
-#elif defined(_MSC_VER)
-#ifdef FLAC_API_EXPORTS
-#define FLAC_API __declspec(dllexport)
-#else
-#define FLAC_API __declspec(dllimport)
-#endif
-
-#elif defined(FLAC__USE_VISIBILITY_ATTR)
-#define FLAC_API __attribute__ ((visibility ("default")))
-
-#else
-#define FLAC_API
-
-#endif
-
-/** These #defines will mirror the libtool-based library version number, see
- * http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
- */
-#define FLAC_API_VERSION_CURRENT 11
-#define FLAC_API_VERSION_REVISION 0 /**< see above */
-#define FLAC_API_VERSION_AGE 3 /**< see above */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
-extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
-
-#ifdef __cplusplus
-}
-#endif
-
-/* \} */
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__FORMAT_H
-#define FLAC__FORMAT_H
-
-#include "export.h"
-#include "ordinals.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** \file include/FLAC/format.h
- *
- * \brief
- * This module contains structure definitions for the representation
- * of FLAC format components in memory. These are the basic
- * structures used by the rest of the interfaces.
- *
- * See the detailed documentation in the
- * \link flac_format format \endlink module.
- */
-
-/** \defgroup flac_format FLAC/format.h: format components
- * \ingroup flac
- *
- * \brief
- * This module contains structure definitions for the representation
- * of FLAC format components in memory. These are the basic
- * structures used by the rest of the interfaces.
- *
- * First, you should be familiar with the
- * <A HREF="../format.html">FLAC format</A>. Many of the values here
- * follow directly from the specification. As a user of libFLAC, the
- * interesting parts really are the structures that describe the frame
- * header and metadata blocks.
- *
- * The format structures here are very primitive, designed to store
- * information in an efficient way. Reading information from the
- * structures is easy but creating or modifying them directly is
- * more complex. For the most part, as a user of a library, editing
- * is not necessary; however, for metadata blocks it is, so there are
- * convenience functions provided in the \link flac_metadata metadata
- * module \endlink to simplify the manipulation of metadata blocks.
- *
- * \note
- * It's not the best convention, but symbols ending in _LEN are in bits
- * and _LENGTH are in bytes. _LENGTH symbols are \#defines instead of
- * global variables because they are usually used when declaring byte
- * arrays and some compilers require compile-time knowledge of array
- * sizes when declared on the stack.
- *
- * \{
- */
-
-
-/*
- Most of the values described in this file are defined by the FLAC
- format specification. There is nothing to tune here.
-*/
-
-/** The largest legal metadata type code. */
-#define FLAC__MAX_METADATA_TYPE_CODE (126u)
-
-/** The minimum block size, in samples, permitted by the format. */
-#define FLAC__MIN_BLOCK_SIZE (16u)
-
-/** The maximum block size, in samples, permitted by the format. */
-#define FLAC__MAX_BLOCK_SIZE (65535u)
-
-/** The maximum block size, in samples, permitted by the FLAC subset for
- * sample rates up to 48kHz. */
-#define FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ (4608u)
-
-/** The maximum number of channels permitted by the format. */
-#define FLAC__MAX_CHANNELS (8u)
-
-/** The minimum sample resolution permitted by the format. */
-#define FLAC__MIN_BITS_PER_SAMPLE (4u)
-
-/** The maximum sample resolution permitted by the format. */
-#define FLAC__MAX_BITS_PER_SAMPLE (32u)
-
-/** The maximum sample resolution permitted by libFLAC.
- *
- * \warning
- * FLAC__MAX_BITS_PER_SAMPLE is the limit of the FLAC format. However,
- * the reference encoder/decoder is currently limited to 24 bits because
- * of prevalent 32-bit math, so make sure and use this value when
- * appropriate.
- */
-#define FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE (24u)
-
-/** The maximum sample rate permitted by the format. The value is
- * ((2 ^ 16) - 1) * 10; see <A HREF="../format.html">FLAC format</A>
- * as to why.
- */
-#define FLAC__MAX_SAMPLE_RATE (655350u)
-
-/** The maximum LPC order permitted by the format. */
-#define FLAC__MAX_LPC_ORDER (32u)
-
-/** The maximum LPC order permitted by the FLAC subset for sample rates
- * up to 48kHz. */
-#define FLAC__SUBSET_MAX_LPC_ORDER_48000HZ (12u)
-
-/** The minimum quantized linear predictor coefficient precision
- * permitted by the format.
- */
-#define FLAC__MIN_QLP_COEFF_PRECISION (5u)
-
-/** The maximum quantized linear predictor coefficient precision
- * permitted by the format.
- */
-#define FLAC__MAX_QLP_COEFF_PRECISION (15u)
-
-/** The maximum order of the fixed predictors permitted by the format. */
-#define FLAC__MAX_FIXED_ORDER (4u)
-
-/** The maximum Rice partition order permitted by the format. */
-#define FLAC__MAX_RICE_PARTITION_ORDER (15u)
-
-/** The maximum Rice partition order permitted by the FLAC Subset. */
-#define FLAC__SUBSET_MAX_RICE_PARTITION_ORDER (8u)
-
-/** The version string of the release, stamped onto the libraries and binaries.
- *
- * \note
- * This does not correspond to the shared library version number, which
- * is used to determine binary compatibility.
- */
-extern FLAC_API const char *FLAC__VERSION_STRING;
-
-/** The vendor string inserted by the encoder into the VORBIS_COMMENT block.
- * This is a NUL-terminated ASCII string; when inserted into the
- * VORBIS_COMMENT the trailing null is stripped.
- */
-extern FLAC_API const char *FLAC__VENDOR_STRING;
-
-/** The byte string representation of the beginning of a FLAC stream. */
-extern FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4]; /* = "fLaC" */
-
-/** The 32-bit integer big-endian representation of the beginning of
- * a FLAC stream.
- */
-extern FLAC_API const unsigned FLAC__STREAM_SYNC; /* = 0x664C6143 */
-
-/** The length of the FLAC signature in bits. */
-extern FLAC_API const unsigned FLAC__STREAM_SYNC_LEN; /* = 32 bits */
-
-/** The length of the FLAC signature in bytes. */
-#define FLAC__STREAM_SYNC_LENGTH (4u)
-
-
-/*****************************************************************************
- *
- * Subframe structures
- *
- *****************************************************************************/
-
-/*****************************************************************************/
-
-/** An enumeration of the available entropy coding methods. */
-typedef enum {
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE = 0,
- /**< Residual is coded by partitioning into contexts, each with it's own
- * 4-bit Rice parameter. */
-
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 = 1
- /**< Residual is coded by partitioning into contexts, each with it's own
- * 5-bit Rice parameter. */
-} FLAC__EntropyCodingMethodType;
-
-/** Maps a FLAC__EntropyCodingMethodType to a C string.
- *
- * Using a FLAC__EntropyCodingMethodType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[];
-
-
-/** Contents of a Rice partitioned residual
- */
-typedef struct {
-
- unsigned *parameters;
- /**< The Rice parameters for each context. */
-
- unsigned *raw_bits;
- /**< Widths for escape-coded partitions. Will be non-zero for escaped
- * partitions and zero for unescaped partitions.
- */
-
- unsigned capacity_by_order;
- /**< The capacity of the \a parameters and \a raw_bits arrays
- * specified as an order, i.e. the number of array elements
- * allocated is 2 ^ \a capacity_by_order.
- */
-} FLAC__EntropyCodingMethod_PartitionedRiceContents;
-
-/** Header for a Rice partitioned residual. (c.f. <A HREF="../format.html#partitioned_rice">format specification</A>)
- */
-typedef struct {
-
- unsigned order;
- /**< The partition order, i.e. # of contexts = 2 ^ \a order. */
-
- const FLAC__EntropyCodingMethod_PartitionedRiceContents *contents;
- /**< The context's Rice parameters and/or raw bits. */
-
-} FLAC__EntropyCodingMethod_PartitionedRice;
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN; /**< == 5 (bits) */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN; /**< == 5 (bits) */
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER;
-/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
-
-/** Header for the entropy coding method. (c.f. <A HREF="../format.html#residual">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethodType type;
- union {
- FLAC__EntropyCodingMethod_PartitionedRice partitioned_rice;
- } data;
-} FLAC__EntropyCodingMethod;
-
-extern FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN; /**< == 2 (bits) */
-
-/*****************************************************************************/
-
-/** An enumeration of the available subframe types. */
-typedef enum {
- FLAC__SUBFRAME_TYPE_CONSTANT = 0, /**< constant signal */
- FLAC__SUBFRAME_TYPE_VERBATIM = 1, /**< uncompressed signal */
- FLAC__SUBFRAME_TYPE_FIXED = 2, /**< fixed polynomial prediction */
- FLAC__SUBFRAME_TYPE_LPC = 3 /**< linear prediction */
-} FLAC__SubframeType;
-
-/** Maps a FLAC__SubframeType to a C string.
- *
- * Using a FLAC__SubframeType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__SubframeTypeString[];
-
-
-/** CONSTANT subframe. (c.f. <A HREF="../format.html#subframe_constant">format specification</A>)
- */
-typedef struct {
- FLAC__int32 value; /**< The constant signal value. */
-} FLAC__Subframe_Constant;
-
-
-/** VERBATIM subframe. (c.f. <A HREF="../format.html#subframe_verbatim">format specification</A>)
- */
-typedef struct {
- const FLAC__int32 *data; /**< A pointer to verbatim signal. */
-} FLAC__Subframe_Verbatim;
-
-
-/** FIXED subframe. (c.f. <A HREF="../format.html#subframe_fixed">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethod entropy_coding_method;
- /**< The residual coding method. */
-
- unsigned order;
- /**< The polynomial order. */
-
- FLAC__int32 warmup[FLAC__MAX_FIXED_ORDER];
- /**< Warmup samples to prime the predictor, length == order. */
-
- const FLAC__int32 *residual;
- /**< The residual signal, length == (blocksize minus order) samples. */
-} FLAC__Subframe_Fixed;
-
-
-/** LPC subframe. (c.f. <A HREF="../format.html#subframe_lpc">format specification</A>)
- */
-typedef struct {
- FLAC__EntropyCodingMethod entropy_coding_method;
- /**< The residual coding method. */
-
- unsigned order;
- /**< The FIR order. */
-
- unsigned qlp_coeff_precision;
- /**< Quantized FIR filter coefficient precision in bits. */
-
- int quantization_level;
- /**< The qlp coeff shift needed. */
-
- FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
- /**< FIR filter coefficients. */
-
- FLAC__int32 warmup[FLAC__MAX_LPC_ORDER];
- /**< Warmup samples to prime the predictor, length == order. */
-
- const FLAC__int32 *residual;
- /**< The residual signal, length == (blocksize minus order) samples. */
-} FLAC__Subframe_LPC;
-
-extern FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN; /**< == 5 (bits) */
-
-
-/** FLAC subframe structure. (c.f. <A HREF="../format.html#subframe">format specification</A>)
- */
-typedef struct {
- FLAC__SubframeType type;
- union {
- FLAC__Subframe_Constant constant;
- FLAC__Subframe_Fixed fixed;
- FLAC__Subframe_LPC lpc;
- FLAC__Subframe_Verbatim verbatim;
- } data;
- unsigned wasted_bits;
-} FLAC__Subframe;
-
-/** == 1 (bit)
- *
- * This used to be a zero-padding bit (hence the name
- * FLAC__SUBFRAME_ZERO_PAD_LEN) but is now a reserved bit. It still has a
- * mandatory value of \c 0 but in the future may take on the value \c 0 or \c 1
- * to mean something else.
- */
-extern FLAC_API const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN;
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LEN; /**< == 6 (bits) */
-extern FLAC_API const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN; /**< == 1 (bit) */
-
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK; /**< = 0x00 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK; /**< = 0x02 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK; /**< = 0x10 */
-extern FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK; /**< = 0x40 */
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Frame structures
- *
- *****************************************************************************/
-
-/** An enumeration of the available channel assignments. */
-typedef enum {
- FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT = 0, /**< independent channels */
- FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE = 1, /**< left+side stereo */
- FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE = 2, /**< right+side stereo */
- FLAC__CHANNEL_ASSIGNMENT_MID_SIDE = 3 /**< mid+side stereo */
-} FLAC__ChannelAssignment;
-
-/** Maps a FLAC__ChannelAssignment to a C string.
- *
- * Using a FLAC__ChannelAssignment as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__ChannelAssignmentString[];
-
-/** An enumeration of the possible frame numbering methods. */
-typedef enum {
- FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER, /**< number contains the frame number */
- FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER /**< number contains the sample number of first sample in frame */
-} FLAC__FrameNumberType;
-
-/** Maps a FLAC__FrameNumberType to a C string.
- *
- * Using a FLAC__FrameNumberType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__FrameNumberTypeString[];
-
-
-/** FLAC frame header structure. (c.f. <A HREF="../format.html#frame_header">format specification</A>)
- */
-typedef struct {
- unsigned blocksize;
- /**< The number of samples per subframe. */
-
- unsigned sample_rate;
- /**< The sample rate in Hz. */
-
- unsigned channels;
- /**< The number of channels (== number of subframes). */
-
- FLAC__ChannelAssignment channel_assignment;
- /**< The channel assignment for the frame. */
-
- unsigned bits_per_sample;
- /**< The sample resolution. */
-
- FLAC__FrameNumberType number_type;
- /**< The numbering scheme used for the frame. As a convenience, the
- * decoder will always convert a frame number to a sample number because
- * the rules are complex. */
-
- union {
- FLAC__uint32 frame_number;
- FLAC__uint64 sample_number;
- } number;
- /**< The frame number or sample number of first sample in frame;
- * use the \a number_type value to determine which to use. */
-
- FLAC__uint8 crc;
- /**< CRC-8 (polynomial = x^8 + x^2 + x^1 + x^0, initialized with 0)
- * of the raw frame header bytes, meaning everything before the CRC byte
- * including the sync code.
- */
-} FLAC__FrameHeader;
-
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC; /**< == 0x3ffe; the frame header sync code */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC_LEN; /**< == 14 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_RESERVED_LEN; /**< == 1 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN; /**< == 1 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN; /**< == 4 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN; /**< == 3 (bits) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__FRAME_HEADER_CRC_LEN; /**< == 8 (bits) */
-
-
-/** FLAC frame footer structure. (c.f. <A HREF="../format.html#frame_footer">format specification</A>)
- */
-typedef struct {
- FLAC__uint16 crc;
- /**< CRC-16 (polynomial = x^16 + x^15 + x^2 + x^0, initialized with
- * 0) of the bytes before the crc, back to and including the frame header
- * sync code.
- */
-} FLAC__FrameFooter;
-
-extern FLAC_API const unsigned FLAC__FRAME_FOOTER_CRC_LEN; /**< == 16 (bits) */
-
-
-/** FLAC frame structure. (c.f. <A HREF="../format.html#frame">format specification</A>)
- */
-typedef struct {
- FLAC__FrameHeader header;
- FLAC__Subframe subframes[FLAC__MAX_CHANNELS];
- FLAC__FrameFooter footer;
-} FLAC__Frame;
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Meta-data structures
- *
- *****************************************************************************/
-
-/** An enumeration of the available metadata block types. */
-typedef enum {
-
- FLAC__METADATA_TYPE_STREAMINFO = 0,
- /**< <A HREF="../format.html#metadata_block_streaminfo">STREAMINFO</A> block */
-
- FLAC__METADATA_TYPE_PADDING = 1,
- /**< <A HREF="../format.html#metadata_block_padding">PADDING</A> block */
-
- FLAC__METADATA_TYPE_APPLICATION = 2,
- /**< <A HREF="../format.html#metadata_block_application">APPLICATION</A> block */
-
- FLAC__METADATA_TYPE_SEEKTABLE = 3,
- /**< <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block */
-
- FLAC__METADATA_TYPE_VORBIS_COMMENT = 4,
- /**< <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags) */
-
- FLAC__METADATA_TYPE_CUESHEET = 5,
- /**< <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block */
-
- FLAC__METADATA_TYPE_PICTURE = 6,
- /**< <A HREF="../format.html#metadata_block_picture">PICTURE</A> block */
-
- FLAC__METADATA_TYPE_UNDEFINED = 7,
- /**< marker to denote beginning of undefined type range; this number will increase as new metadata types are added */
-
- FLAC__MAX_METADATA_TYPE = FLAC__MAX_METADATA_TYPE_CODE,
- /**< No type will ever be greater than this. There is not enough room in the protocol block. */
-} FLAC__MetadataType;
-
-/** Maps a FLAC__MetadataType to a C string.
- *
- * Using a FLAC__MetadataType as the index to this array will
- * give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__MetadataTypeString[];
-
-
-/** FLAC STREAMINFO structure. (c.f. <A HREF="../format.html#metadata_block_streaminfo">format specification</A>)
- */
-typedef struct {
- unsigned min_blocksize, max_blocksize;
- unsigned min_framesize, max_framesize;
- unsigned sample_rate;
- unsigned channels;
- unsigned bits_per_sample;
- FLAC__uint64 total_samples;
- FLAC__byte md5sum[16];
-} FLAC__StreamMetadata_StreamInfo;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN; /**< == 16 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN; /**< == 16 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN; /**< == 24 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN; /**< == 24 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN; /**< == 20 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN; /**< == 3 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN; /**< == 5 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN; /**< == 36 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN; /**< == 128 (bits) */
-
-/** The total stream length of the STREAMINFO block in bytes. */
-#define FLAC__STREAM_METADATA_STREAMINFO_LENGTH (34u)
-
-/** FLAC PADDING structure. (c.f. <A HREF="../format.html#metadata_block_padding">format specification</A>)
- */
-typedef struct {
- int dummy;
- /**< Conceptually this is an empty struct since we don't store the
- * padding bytes. Empty structs are not allowed by some C compilers,
- * hence the dummy.
- */
-} FLAC__StreamMetadata_Padding;
-
-
-/** FLAC APPLICATION structure. (c.f. <A HREF="../format.html#metadata_block_application">format specification</A>)
- */
-typedef struct {
- FLAC__byte id[4];
- FLAC__byte *data;
-} FLAC__StreamMetadata_Application;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN; /**< == 32 (bits) */
-
-/** SeekPoint structure used in SEEKTABLE blocks. (c.f. <A HREF="../format.html#seekpoint">format specification</A>)
- */
-typedef struct {
- FLAC__uint64 sample_number;
- /**< The sample number of the target frame. */
-
- FLAC__uint64 stream_offset;
- /**< The offset, in bytes, of the target frame with respect to
- * beginning of the first frame. */
-
- unsigned frame_samples;
- /**< The number of samples in the target frame. */
-} FLAC__StreamMetadata_SeekPoint;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN; /**< == 16 (bits) */
-
-/** The total stream length of a seek point in bytes. */
-#define FLAC__STREAM_METADATA_SEEKPOINT_LENGTH (18u)
-
-/** The value used in the \a sample_number field of
- * FLAC__StreamMetadataSeekPoint used to indicate a placeholder
- * point (== 0xffffffffffffffff).
- */
-extern FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
-
-
-/** FLAC SEEKTABLE structure. (c.f. <A HREF="../format.html#metadata_block_seektable">format specification</A>)
- *
- * \note From the format specification:
- * - The seek points must be sorted by ascending sample number.
- * - Each seek point's sample number must be the first sample of the
- * target frame.
- * - Each seek point's sample number must be unique within the table.
- * - Existence of a SEEKTABLE block implies a correct setting of
- * total_samples in the stream_info block.
- * - Behavior is undefined when more than one SEEKTABLE block is
- * present in a stream.
- */
-typedef struct {
- unsigned num_points;
- FLAC__StreamMetadata_SeekPoint *points;
-} FLAC__StreamMetadata_SeekTable;
-
-
-/** Vorbis comment entry structure used in VORBIS_COMMENT blocks. (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
- *
- * For convenience, the APIs maintain a trailing NUL character at the end of
- * \a entry which is not counted toward \a length, i.e.
- * \code strlen(entry) == length \endcode
- */
-typedef struct {
- FLAC__uint32 length;
- FLAC__byte *entry;
-} FLAC__StreamMetadata_VorbisComment_Entry;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN; /**< == 32 (bits) */
-
-
-/** FLAC VORBIS_COMMENT structure. (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
- */
-typedef struct {
- FLAC__StreamMetadata_VorbisComment_Entry vendor_string;
- FLAC__uint32 num_comments;
- FLAC__StreamMetadata_VorbisComment_Entry *comments;
-} FLAC__StreamMetadata_VorbisComment;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN; /**< == 32 (bits) */
-
-
-/** FLAC CUESHEET track index structure. (See the
- * <A HREF="../format.html#cuesheet_track_index">format specification</A> for
- * the full description of each field.)
- */
-typedef struct {
- FLAC__uint64 offset;
- /**< Offset in samples, relative to the track offset, of the index
- * point.
- */
-
- FLAC__byte number;
- /**< The index point number. */
-} FLAC__StreamMetadata_CueSheet_Index;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN; /**< == 8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN; /**< == 3*8 (bits) */
-
-
-/** FLAC CUESHEET track structure. (See the
- * <A HREF="../format.html#cuesheet_track">format specification</A> for
- * the full description of each field.)
- */
-typedef struct {
- FLAC__uint64 offset;
- /**< Track offset in samples, relative to the beginning of the FLAC audio stream. */
-
- FLAC__byte number;
- /**< The track number. */
-
- char isrc[13];
- /**< Track ISRC. This is a 12-digit alphanumeric code plus a trailing \c NUL byte */
-
- unsigned type:1;
- /**< The track type: 0 for audio, 1 for non-audio. */
-
- unsigned pre_emphasis:1;
- /**< The pre-emphasis flag: 0 for no pre-emphasis, 1 for pre-emphasis. */
-
- FLAC__byte num_indices;
- /**< The number of track index points. */
-
- FLAC__StreamMetadata_CueSheet_Index *indices;
- /**< NULL if num_indices == 0, else pointer to array of index points. */
-
-} FLAC__StreamMetadata_CueSheet_Track;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN; /**< == 8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN; /**< == 12*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN; /**< == 6+13*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN; /**< == 8 (bits) */
-
-
-/** FLAC CUESHEET structure. (See the
- * <A HREF="../format.html#metadata_block_cuesheet">format specification</A>
- * for the full description of each field.)
- */
-typedef struct {
- char media_catalog_number[129];
- /**< Media catalog number, in ASCII printable characters 0x20-0x7e. In
- * general, the media catalog number may be 0 to 128 bytes long; any
- * unused characters should be right-padded with NUL characters.
- */
-
- FLAC__uint64 lead_in;
- /**< The number of lead-in samples. */
-
- FLAC__bool is_cd;
- /**< \c true if CUESHEET corresponds to a Compact Disc, else \c false. */
-
- unsigned num_tracks;
- /**< The number of tracks. */
-
- FLAC__StreamMetadata_CueSheet_Track *tracks;
- /**< NULL if num_tracks == 0, else pointer to array of tracks. */
-
-} FLAC__StreamMetadata_CueSheet;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN; /**< == 128*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN; /**< == 64 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN; /**< == 7+258*8 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN; /**< == 8 (bits) */
-
-
-/** An enumeration of the PICTURE types (see FLAC__StreamMetadataPicture and id3 v2.4 APIC tag). */
-typedef enum {
- FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER = 0, /**< Other */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD = 1, /**< 32x32 pixels 'file icon' (PNG only) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON = 2, /**< Other file icon */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER = 3, /**< Cover (front) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BACK_COVER = 4, /**< Cover (back) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEAFLET_PAGE = 5, /**< Leaflet page */
- FLAC__STREAM_METADATA_PICTURE_TYPE_MEDIA = 6, /**< Media (e.g. label side of CD) */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEAD_ARTIST = 7, /**< Lead artist/lead performer/soloist */
- FLAC__STREAM_METADATA_PICTURE_TYPE_ARTIST = 8, /**< Artist/performer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_CONDUCTOR = 9, /**< Conductor */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BAND = 10, /**< Band/Orchestra */
- FLAC__STREAM_METADATA_PICTURE_TYPE_COMPOSER = 11, /**< Composer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_LYRICIST = 12, /**< Lyricist/text writer */
- FLAC__STREAM_METADATA_PICTURE_TYPE_RECORDING_LOCATION = 13, /**< Recording Location */
- FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_RECORDING = 14, /**< During recording */
- FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_PERFORMANCE = 15, /**< During performance */
- FLAC__STREAM_METADATA_PICTURE_TYPE_VIDEO_SCREEN_CAPTURE = 16, /**< Movie/video screen capture */
- FLAC__STREAM_METADATA_PICTURE_TYPE_FISH = 17, /**< A bright coloured fish */
- FLAC__STREAM_METADATA_PICTURE_TYPE_ILLUSTRATION = 18, /**< Illustration */
- FLAC__STREAM_METADATA_PICTURE_TYPE_BAND_LOGOTYPE = 19, /**< Band/artist logotype */
- FLAC__STREAM_METADATA_PICTURE_TYPE_PUBLISHER_LOGOTYPE = 20, /**< Publisher/Studio logotype */
- FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED
-} FLAC__StreamMetadata_Picture_Type;
-
-/** Maps a FLAC__StreamMetadata_Picture_Type to a C string.
- *
- * Using a FLAC__StreamMetadata_Picture_Type as the index to this array
- * will give the string equivalent. The contents should not be
- * modified.
- */
-extern FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[];
-
-/** FLAC PICTURE structure. (See the
- * <A HREF="../format.html#metadata_block_picture">format specification</A>
- * for the full description of each field.)
- */
-typedef struct {
- FLAC__StreamMetadata_Picture_Type type;
- /**< The kind of picture stored. */
-
- char *mime_type;
- /**< Picture data's MIME type, in ASCII printable characters
- * 0x20-0x7e, NUL terminated. For best compatibility with players,
- * use picture data of MIME type \c image/jpeg or \c image/png. A
- * MIME type of '-->' is also allowed, in which case the picture
- * data should be a complete URL. In file storage, the MIME type is
- * stored as a 32-bit length followed by the ASCII string with no NUL
- * terminator, but is converted to a plain C string in this structure
- * for convenience.
- */
-
- FLAC__byte *description;
- /**< Picture's description in UTF-8, NUL terminated. In file storage,
- * the description is stored as a 32-bit length followed by the UTF-8
- * string with no NUL terminator, but is converted to a plain C string
- * in this structure for convenience.
- */
-
- FLAC__uint32 width;
- /**< Picture's width in pixels. */
-
- FLAC__uint32 height;
- /**< Picture's height in pixels. */
-
- FLAC__uint32 depth;
- /**< Picture's color depth in bits-per-pixel. */
-
- FLAC__uint32 colors;
- /**< For indexed palettes (like GIF), picture's number of colors (the
- * number of palette entries), or \c 0 for non-indexed (i.e. 2^depth).
- */
-
- FLAC__uint32 data_length;
- /**< Length of binary picture data in bytes. */
-
- FLAC__byte *data;
- /**< Binary picture data. */
-
-} FLAC__StreamMetadata_Picture;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_TYPE_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_COLORS_LEN; /**< == 32 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN; /**< == 32 (bits) */
-
-
-/** Structure that is used when a metadata block of unknown type is loaded.
- * The contents are opaque. The structure is used only internally to
- * correctly handle unknown metadata.
- */
-typedef struct {
- FLAC__byte *data;
-} FLAC__StreamMetadata_Unknown;
-
-
-/** FLAC metadata block structure. (c.f. <A HREF="../format.html#metadata_block">format specification</A>)
- */
-typedef struct {
- FLAC__MetadataType type;
- /**< The type of the metadata block; used determine which member of the
- * \a data union to dereference. If type >= FLAC__METADATA_TYPE_UNDEFINED
- * then \a data.unknown must be used. */
-
- FLAC__bool is_last;
- /**< \c true if this metadata block is the last, else \a false */
-
- unsigned length;
- /**< Length, in bytes, of the block data as it appears in the stream. */
-
- union {
- FLAC__StreamMetadata_StreamInfo stream_info;
- FLAC__StreamMetadata_Padding padding;
- FLAC__StreamMetadata_Application application;
- FLAC__StreamMetadata_SeekTable seek_table;
- FLAC__StreamMetadata_VorbisComment vorbis_comment;
- FLAC__StreamMetadata_CueSheet cue_sheet;
- FLAC__StreamMetadata_Picture picture;
- FLAC__StreamMetadata_Unknown unknown;
- } data;
- /**< Polymorphic block data; use the \a type value to determine which
- * to use. */
-} FLAC__StreamMetadata;
-
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN; /**< == 1 (bit) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_TYPE_LEN; /**< == 7 (bits) */
-extern FLAC_API const unsigned FLAC__STREAM_METADATA_LENGTH_LEN; /**< == 24 (bits) */
-
-/** The total stream length of a metadata block header in bytes. */
-#define FLAC__STREAM_METADATA_HEADER_LENGTH (4u)
-
-/*****************************************************************************/
-
-
-/*****************************************************************************
- *
- * Utility functions
- *
- *****************************************************************************/
-
-/** Tests that a sample rate is valid for FLAC.
- *
- * \param sample_rate The sample rate to test for compliance.
- * \retval FLAC__bool
- * \c true if the given sample rate conforms to the specification, else
- * \c false.
- */
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate);
-
-/** Tests that a blocksize at the given sample rate is valid for the FLAC
- * subset.
- *
- * \param blocksize The blocksize to test for compliance.
- * \param sample_rate The sample rate is needed, since the valid subset
- * blocksize depends on the sample rate.
- * \retval FLAC__bool
- * \c true if the given blocksize conforms to the specification for the
- * subset at the given sample rate, else \c false.
- */
-FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(unsigned blocksize, unsigned sample_rate);
-
-/** Tests that a sample rate is valid for the FLAC subset. The subset rules
- * for valid sample rates are slightly more complex since the rate has to
- * be expressible completely in the frame header.
- *
- * \param sample_rate The sample rate to test for compliance.
- * \retval FLAC__bool
- * \c true if the given sample rate conforms to the specification for the
- * subset, else \c false.
- */
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate);
-
-/** Check a Vorbis comment entry name to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment names must be composed only of characters from
- * [0x20-0x3C,0x3E-0x7D].
- *
- * \param name A NUL-terminated string to be checked.
- * \assert
- * \code name != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name);
-
-/** Check a Vorbis comment entry value to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment values must be valid UTF-8 sequences.
- *
- * \param value A string to be checked.
- * \param length A the length of \a value in bytes. May be
- * \c (unsigned)(-1) to indicate that \a value is a plain
- * UTF-8 NUL-terminated string.
- * \assert
- * \code value != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, unsigned length);
-
-/** Check a Vorbis comment entry to see if it conforms to the Vorbis
- * comment specification.
- *
- * Vorbis comment entries must be of the form 'name=value', and 'name' and
- * 'value' must be legal according to
- * FLAC__format_vorbiscomment_entry_name_is_legal() and
- * FLAC__format_vorbiscomment_entry_value_is_legal() respectively.
- *
- * \param entry An entry to be checked.
- * \param length The length of \a entry in bytes.
- * \assert
- * \code value != NULL \endcode
- * \retval FLAC__bool
- * \c false if entry name is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, unsigned length);
-
-/** Check a seek table to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * seek table.
- *
- * \param seek_table A pointer to a seek table to be checked.
- * \assert
- * \code seek_table != NULL \endcode
- * \retval FLAC__bool
- * \c false if seek table is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table);
-
-/** Sort a seek table's seek points according to the format specification.
- * This includes a "unique-ification" step to remove duplicates, i.e.
- * seek points with identical \a sample_number values. Duplicate seek
- * points are converted into placeholder points and sorted to the end of
- * the table.
- *
- * \param seek_table A pointer to a seek table to be sorted.
- * \assert
- * \code seek_table != NULL \endcode
- * \retval unsigned
- * The number of duplicate seek points converted into placeholders.
- */
-FLAC_API unsigned FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table);
-
-/** Check a cue sheet to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * cue sheet.
- *
- * \param cue_sheet A pointer to an existing cue sheet to be checked.
- * \param check_cd_da_subset If \c true, check CUESHEET against more
- * stringent requirements for a CD-DA (audio) disc.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code cue_sheet != NULL \endcode
- * \retval FLAC__bool
- * \c false if cue sheet is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation);
-
-/** Check picture data to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * PICTURE block.
- *
- * \param picture A pointer to existing picture data to be checked.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code picture != NULL \endcode
- * \retval FLAC__bool
- * \c false if picture data is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__METADATA_H
-#define FLAC__METADATA_H
-
-#include <sys/types.h> /* for off_t */
-#include "export.h"
-#include "callback.h"
-#include "format.h"
-
-/* --------------------------------------------------------------------
- (For an example of how all these routines are used, see the source
- code for the unit tests in src/test_libFLAC/metadata_*.c, or
- metaflac in src/metaflac/)
- ------------------------------------------------------------------*/
-
-/** \file include/FLAC/metadata.h
- *
- * \brief
- * This module provides functions for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in FLAC files.
- *
- * See the detailed documentation for each interface in the
- * \link flac_metadata metadata \endlink module.
- */
-
-/** \defgroup flac_metadata FLAC/metadata.h: metadata interfaces
- * \ingroup flac
- *
- * \brief
- * This module provides functions for creating and manipulating FLAC
- * metadata blocks in memory, and three progressively more powerful
- * interfaces for traversing and editing metadata in native FLAC files.
- * Note that currently only the Chain interface (level 2) supports Ogg
- * FLAC files, and it is read-only i.e. no writing back changed
- * metadata to file.
- *
- * There are three metadata interfaces of increasing complexity:
- *
- * Level 0:
- * Read-only access to the STREAMINFO, VORBIS_COMMENT, CUESHEET, and
- * PICTURE blocks.
- *
- * Level 1:
- * Read-write access to all metadata blocks. This level is write-
- * efficient in most cases (more on this below), and uses less memory
- * than level 2.
- *
- * Level 2:
- * Read-write access to all metadata blocks. This level is write-
- * efficient in all cases, but uses more memory since all metadata for
- * the whole file is read into memory and manipulated before writing
- * out again.
- *
- * What do we mean by efficient? Since FLAC metadata appears at the
- * beginning of the file, when writing metadata back to a FLAC file
- * it is possible to grow or shrink the metadata such that the entire
- * file must be rewritten. However, if the size remains the same during
- * changes or PADDING blocks are utilized, only the metadata needs to be
- * overwritten, which is much faster.
- *
- * Efficient means the whole file is rewritten at most one time, and only
- * when necessary. Level 1 is not efficient only in the case that you
- * cause more than one metadata block to grow or shrink beyond what can
- * be accomodated by padding. In this case you should probably use level
- * 2, which allows you to edit all the metadata for a file in memory and
- * write it out all at once.
- *
- * All levels know how to skip over and not disturb an ID3v2 tag at the
- * front of the file.
- *
- * All levels access files via their filenames. In addition, level 2
- * has additional alternative read and write functions that take an I/O
- * handle and callbacks, for situations where access by filename is not
- * possible.
- *
- * In addition to the three interfaces, this module defines functions for
- * creating and manipulating various metadata objects in memory. As we see
- * from the Format module, FLAC metadata blocks in memory are very primitive
- * structures for storing information in an efficient way. Reading
- * information from the structures is easy but creating or modifying them
- * directly is more complex. The metadata object routines here facilitate
- * this by taking care of the consistency and memory management drudgery.
- *
- * Unless you will be using the level 1 or 2 interfaces to modify existing
- * metadata however, you will not probably not need these.
- *
- * From a dependency standpoint, none of the encoders or decoders require
- * the metadata module. This is so that embedded users can strip out the
- * metadata module from libFLAC to reduce the size and complexity.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \defgroup flac_metadata_level0 FLAC/metadata.h: metadata level 0 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 0 interface consists of individual routines to read the
- * STREAMINFO, VORBIS_COMMENT, CUESHEET, and PICTURE blocks, requiring
- * only a filename.
- *
- * They try to skip any ID3v2 tag at the head of the file.
- *
- * \{
- */
-
-/** Read the STREAMINFO metadata block of the given FLAC file. This function
- * will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param streaminfo A pointer to space for the STREAMINFO block. Since
- * FLAC__StreamMetadata is a simple structure with no
- * memory allocation involved, you pass the address of
- * an existing structure. It need not be initialized.
- * \assert
- * \code filename != NULL \endcode
- * \code streaminfo != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid STREAMINFO block was read from \a filename. Returns
- * \c false if there was a memory allocation error, a file decoder error,
- * or the file contained no STREAMINFO block. (A memory allocation error
- * is possible because this function must set up a file decoder.)
- */
-FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo);
-
-/** Read the VORBIS_COMMENT metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param tags The address where the returned pointer will be
- * stored. The \a tags object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \assert
- * \code filename != NULL \endcode
- * \code tags != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid VORBIS_COMMENT block was read from \a filename,
- * and \a *tags will be set to the address of the metadata structure.
- * Returns \c false if there was a memory allocation error, a file
- * decoder error, or the file contained no VORBIS_COMMENT block, and
- * \a *tags will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags);
-
-/** Read the CUESHEET metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- *
- * \param filename The path to the FLAC file to read.
- * \param cuesheet The address where the returned pointer will be
- * stored. The \a cuesheet object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \assert
- * \code filename != NULL \endcode
- * \code cuesheet != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid CUESHEET block was read from \a filename,
- * and \a *cuesheet will be set to the address of the metadata
- * structure. Returns \c false if there was a memory allocation
- * error, a file decoder error, or the file contained no CUESHEET
- * block, and \a *cuesheet will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet);
-
-/** Read a PICTURE metadata block of the given FLAC file. This
- * function will try to skip any ID3v2 tag at the head of the file.
- * Since there can be more than one PICTURE block in a file, this
- * function takes a number of parameters that act as constraints to
- * the search. The PICTURE block with the largest area matching all
- * the constraints will be returned, or \a *picture will be set to
- * \c NULL if there was no such block.
- *
- * \param filename The path to the FLAC file to read.
- * \param picture The address where the returned pointer will be
- * stored. The \a picture object must be deleted by
- * the caller using FLAC__metadata_object_delete().
- * \param type The desired picture type. Use \c -1 to mean
- * "any type".
- * \param mime_type The desired MIME type, e.g. "image/jpeg". The
- * string will be matched exactly. Use \c NULL to
- * mean "any MIME type".
- * \param description The desired description. The string will be
- * matched exactly. Use \c NULL to mean "any
- * description".
- * \param max_width The maximum width in pixels desired. Use
- * \c (unsigned)(-1) to mean "any width".
- * \param max_height The maximum height in pixels desired. Use
- * \c (unsigned)(-1) to mean "any height".
- * \param max_depth The maximum color depth in bits-per-pixel desired.
- * Use \c (unsigned)(-1) to mean "any depth".
- * \param max_colors The maximum number of colors desired. Use
- * \c (unsigned)(-1) to mean "any number of colors".
- * \assert
- * \code filename != NULL \endcode
- * \code picture != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid PICTURE block was read from \a filename,
- * and \a *picture will be set to the address of the metadata
- * structure. Returns \c false if there was a memory allocation
- * error, a file decoder error, or the file contained no PICTURE
- * block, and \a *picture will be set to \c NULL.
- */
-FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_level1 FLAC/metadata.h: metadata level 1 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 1 interface provides read-write access to FLAC file metadata and
- * operates directly on the FLAC file.
- *
- * The general usage of this interface is:
- *
- * - Create an iterator using FLAC__metadata_simple_iterator_new()
- * - Attach it to a file using FLAC__metadata_simple_iterator_init() and check
- * the exit code. Call FLAC__metadata_simple_iterator_is_writable() to
- * see if the file is writable, or only read access is allowed.
- * - Use FLAC__metadata_simple_iterator_next() and
- * FLAC__metadata_simple_iterator_prev() to traverse the blocks.
- * This is does not read the actual blocks themselves.
- * FLAC__metadata_simple_iterator_next() is relatively fast.
- * FLAC__metadata_simple_iterator_prev() is slower since it needs to search
- * forward from the front of the file.
- * - Use FLAC__metadata_simple_iterator_get_block_type() or
- * FLAC__metadata_simple_iterator_get_block() to access the actual data at
- * the current iterator position. The returned object is yours to modify
- * and free.
- * - Use FLAC__metadata_simple_iterator_set_block() to write a modified block
- * back. You must have write permission to the original file. Make sure to
- * read the whole comment to FLAC__metadata_simple_iterator_set_block()
- * below.
- * - Use FLAC__metadata_simple_iterator_insert_block_after() to add new blocks.
- * Use the object creation functions from
- * \link flac_metadata_object here \endlink to generate new objects.
- * - Use FLAC__metadata_simple_iterator_delete_block() to remove the block
- * currently referred to by the iterator, or replace it with padding.
- * - Destroy the iterator with FLAC__metadata_simple_iterator_delete() when
- * finished.
- *
- * \note
- * The FLAC file remains open the whole time between
- * FLAC__metadata_simple_iterator_init() and
- * FLAC__metadata_simple_iterator_delete(), so make sure you are not altering
- * the file during this time.
- *
- * \note
- * Do not modify the \a is_last, \a length, or \a type fields of returned
- * FLAC__StreamMetadata objects. These are managed automatically.
- *
- * \note
- * If any of the modification functions
- * (FLAC__metadata_simple_iterator_set_block(),
- * FLAC__metadata_simple_iterator_delete_block(),
- * FLAC__metadata_simple_iterator_insert_block_after(), etc.) return \c false,
- * you should delete the iterator as it may no longer be valid.
- *
- * \{
- */
-
-struct FLAC__Metadata_SimpleIterator;
-/** The opaque structure definition for the level 1 iterator type.
- * See the
- * \link flac_metadata_level1 metadata level 1 module \endlink
- * for a detailed description.
- */
-typedef struct FLAC__Metadata_SimpleIterator FLAC__Metadata_SimpleIterator;
-
-/** Status type for FLAC__Metadata_SimpleIterator.
- *
- * The iterator's current status can be obtained by calling FLAC__metadata_simple_iterator_status().
- */
-typedef enum {
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK = 0,
- /**< The iterator is in the normal OK state */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT,
- /**< The data passed into a function violated the function's usage criteria */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE,
- /**< The iterator could not open the target file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE,
- /**< The iterator could not find the FLAC signature at the start of the file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE,
- /**< The iterator tried to write to a file that was not writable */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA,
- /**< The iterator encountered input that does not conform to the FLAC metadata specification */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR,
- /**< The iterator encountered an error while reading the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR,
- /**< The iterator encountered an error while seeking in the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR,
- /**< The iterator encountered an error while writing the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR,
- /**< The iterator encountered an error renaming the FLAC file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR,
- /**< The iterator encountered an error removing the temporary file */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< Memory allocation failed */
-
- FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR
- /**< The caller violated an assertion or an unexpected error occurred */
-
-} FLAC__Metadata_SimpleIteratorStatus;
-
-/** Maps a FLAC__Metadata_SimpleIteratorStatus to a C string.
- *
- * Using a FLAC__Metadata_SimpleIteratorStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[];
-
-
-/** Create a new iterator instance.
- *
- * \retval FLAC__Metadata_SimpleIterator*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void);
-
-/** Free an iterator instance. Deletes the object pointed to by \a iterator.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- */
-FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the current status of the iterator. Call this after a function
- * returns \c false to get the reason for the error. Also resets the status
- * to FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \retval FLAC__Metadata_SimpleIteratorStatus
- * The current status of the iterator.
- */
-FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Initialize the iterator to point to the first metadata block in the
- * given FLAC file.
- *
- * \param iterator A pointer to an existing iterator.
- * \param filename The path to the FLAC file.
- * \param read_only If \c true, the FLAC file will be opened
- * in read-only mode; if \c false, the FLAC
- * file will be opened for edit even if no
- * edits are performed.
- * \param preserve_file_stats If \c true, the owner and modification
- * time will be preserved even if the FLAC
- * file is written to.
- * \assert
- * \code iterator != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c false if a memory allocation error occurs, the file can't be
- * opened, or another error occurs, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats);
-
-/** Returns \c true if the FLAC file is writable. If \c false, calls to
- * FLAC__metadata_simple_iterator_set_block() and
- * FLAC__metadata_simple_iterator_insert_block_after() will fail.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \retval FLAC__bool
- * See above.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Moves the iterator forward one metadata block, returning \c false if
- * already at the end.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the last metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Moves the iterator backward one metadata block, returning \c false if
- * already at the beginning.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the first metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Returns a flag telling if the current metadata block is the last.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if the current metadata block is the last in the file,
- * else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the offset of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval off_t
- * The offset of the metadata block at the current iterator position.
- * This is the byte offset relative to the beginning of the file of
- * the current metadata block's header.
- */
-FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the type of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__MetadataType
- * The type of the metadata block at the current iterator position.
- */
-FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the length of the metadata block at the current position. This
- * avoids reading the actual block data which can save time for large
- * blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval unsigned
- * The length of the metadata block at the current iterator position.
- * The is same length as that in the
- * <a href="http://xiph.org/flac/format.html#metadata_block_header">metadata block header</a>,
- * i.e. the length of the metadata body that follows the header.
- */
-FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator);
-
-/** Get the application ID of the \c APPLICATION block at the current
- * position. This avoids reading the actual block data which can save
- * time for large blocks.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param id A pointer to a buffer of at least \c 4 bytes where
- * the ID will be stored.
- * \assert
- * \code iterator != NULL \endcode
- * \code id != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if the ID was successfully read, else \c false, in which
- * case you should check FLAC__metadata_simple_iterator_status() to
- * find out why. If the status is
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT, then the
- * current metadata block is not an \c APPLICATION block. Otherwise
- * if the status is
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR or
- * \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR, an I/O error
- * occurred and the iterator can no longer be used.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id);
-
-/** Get the metadata block at the current position. You can modify the
- * block but must use FLAC__metadata_simple_iterator_set_block() to
- * write it back to the FLAC file.
- *
- * You must call FLAC__metadata_object_delete() on the returned object
- * when you are finished with it.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__StreamMetadata*
- * The current metadata block, or \c NULL if there was a memory
- * allocation error.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator);
-
-/** Write a block back to the FLAC file. This function tries to be
- * as efficient as possible; how the block is actually written is
- * shown by the following:
- *
- * Existing block is a STREAMINFO block and the new block is a
- * STREAMINFO block: the new block is written in place. Make sure
- * you know what you're doing when changing the values of a
- * STREAMINFO block.
- *
- * Existing block is a STREAMINFO block and the new block is a
- * not a STREAMINFO block: this is an error since the first block
- * must be a STREAMINFO block. Returns \c false without altering the
- * file.
- *
- * Existing block is not a STREAMINFO block and the new block is a
- * STREAMINFO block: this is an error since there may be only one
- * STREAMINFO block. Returns \c false without altering the file.
- *
- * Existing block and new block are the same length: the existing
- * block will be replaced by the new block, written in place.
- *
- * Existing block is longer than new block: if use_padding is \c true,
- * the existing block will be overwritten in place with the new
- * block followed by a PADDING block, if possible, to make the total
- * size the same as the existing block. Remember that a padding
- * block requires at least four bytes so if the difference in size
- * between the new block and existing block is less than that, the
- * entire file will have to be rewritten, using the new block's
- * exact size. If use_padding is \c false, the entire file will be
- * rewritten, replacing the existing block by the new block.
- *
- * Existing block is shorter than new block: if use_padding is \c true,
- * the function will try and expand the new block into the following
- * PADDING block, if it exists and doing so won't shrink the PADDING
- * block to less than 4 bytes. If there is no following PADDING
- * block, or it will shrink to less than 4 bytes, or use_padding is
- * \c false, the entire file is rewritten, replacing the existing block
- * with the new block. Note that in this case any following PADDING
- * block is preserved as is.
- *
- * After writing the block, the iterator will remain in the same
- * place, i.e. pointing to the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block The block to set.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
-
-/** This is similar to FLAC__metadata_simple_iterator_set_block()
- * except that instead of writing over an existing block, it appends
- * a block after the existing block. \a use_padding is again used to
- * tell the function to try an expand into following padding in an
- * attempt to avoid rewriting the entire file.
- *
- * This function will fail and return \c false if given a STREAMINFO
- * block.
- *
- * After writing the block, the iterator will be pointing to the
- * new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block The block to set.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
-
-/** Deletes the block at the current position. This will cause the
- * entire FLAC file to be rewritten, unless \a use_padding is \c true,
- * in which case the block will be replaced by an equal-sized PADDING
- * block. The iterator will be left pointing to the block before the
- * one just deleted.
- *
- * You may not delete the STREAMINFO block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param use_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_simple_iterator_init()
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_level2 FLAC/metadata.h: metadata level 2 interface
- * \ingroup flac_metadata
- *
- * \brief
- * The level 2 interface provides read-write access to FLAC file metadata;
- * all metadata is read into memory, operated on in memory, and then written
- * to file, which is more efficient than level 1 when editing multiple blocks.
- *
- * Currently Ogg FLAC is supported for read only, via
- * FLAC__metadata_chain_read_ogg() but a subsequent
- * FLAC__metadata_chain_write() will fail.
- *
- * The general usage of this interface is:
- *
- * - Create a new chain using FLAC__metadata_chain_new(). A chain is a
- * linked list of FLAC metadata blocks.
- * - Read all metadata into the chain from a FLAC file using
- * FLAC__metadata_chain_read() or FLAC__metadata_chain_read_ogg() and
- * check the status.
- * - Optionally, consolidate the padding using
- * FLAC__metadata_chain_merge_padding() or
- * FLAC__metadata_chain_sort_padding().
- * - Create a new iterator using FLAC__metadata_iterator_new()
- * - Initialize the iterator to point to the first element in the chain
- * using FLAC__metadata_iterator_init()
- * - Traverse the chain using FLAC__metadata_iterator_next and
- * FLAC__metadata_iterator_prev().
- * - Get a block for reading or modification using
- * FLAC__metadata_iterator_get_block(). The pointer to the object
- * inside the chain is returned, so the block is yours to modify.
- * Changes will be reflected in the FLAC file when you write the
- * chain. You can also add and delete blocks (see functions below).
- * - When done, write out the chain using FLAC__metadata_chain_write().
- * Make sure to read the whole comment to the function below.
- * - Delete the chain using FLAC__metadata_chain_delete().
- *
- * \note
- * Even though the FLAC file is not open while the chain is being
- * manipulated, you must not alter the file externally during
- * this time. The chain assumes the FLAC file will not change
- * between the time of FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg()
- * and FLAC__metadata_chain_write().
- *
- * \note
- * Do not modify the is_last, length, or type fields of returned
- * FLAC__StreamMetadata objects. These are managed automatically.
- *
- * \note
- * The metadata objects returned by FLAC__metadata_iterator_get_block()
- * are owned by the chain; do not FLAC__metadata_object_delete() them.
- * In the same way, blocks passed to FLAC__metadata_iterator_set_block()
- * become owned by the chain and they will be deleted when the chain is
- * deleted.
- *
- * \{
- */
-
-struct FLAC__Metadata_Chain;
-/** The opaque structure definition for the level 2 chain type.
- */
-typedef struct FLAC__Metadata_Chain FLAC__Metadata_Chain;
-
-struct FLAC__Metadata_Iterator;
-/** The opaque structure definition for the level 2 iterator type.
- */
-typedef struct FLAC__Metadata_Iterator FLAC__Metadata_Iterator;
-
-typedef enum {
- FLAC__METADATA_CHAIN_STATUS_OK = 0,
- /**< The chain is in the normal OK state */
-
- FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT,
- /**< The data passed into a function violated the function's usage criteria */
-
- FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE,
- /**< The chain could not open the target file */
-
- FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE,
- /**< The chain could not find the FLAC signature at the start of the file */
-
- FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE,
- /**< The chain tried to write to a file that was not writable */
-
- FLAC__METADATA_CHAIN_STATUS_BAD_METADATA,
- /**< The chain encountered input that does not conform to the FLAC metadata specification */
-
- FLAC__METADATA_CHAIN_STATUS_READ_ERROR,
- /**< The chain encountered an error while reading the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR,
- /**< The chain encountered an error while seeking in the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR,
- /**< The chain encountered an error while writing the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR,
- /**< The chain encountered an error renaming the FLAC file */
-
- FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR,
- /**< The chain encountered an error removing the temporary file */
-
- FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< Memory allocation failed */
-
- FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR,
- /**< The caller violated an assertion or an unexpected error occurred */
-
- FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS,
- /**< One or more of the required callbacks was NULL */
-
- FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH,
- /**< FLAC__metadata_chain_write() was called on a chain read by
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * or
- * FLAC__metadata_chain_write_with_callbacks()/FLAC__metadata_chain_write_with_callbacks_and_tempfile()
- * was called on a chain read by
- * FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Matching read/write methods must always be used. */
-
- FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL
- /**< FLAC__metadata_chain_write_with_callbacks() was called when the
- * chain write requires a tempfile; use
- * FLAC__metadata_chain_write_with_callbacks_and_tempfile() instead.
- * Or, FLAC__metadata_chain_write_with_callbacks_and_tempfile() was
- * called when the chain write does not require a tempfile; use
- * FLAC__metadata_chain_write_with_callbacks() instead.
- * Always check FLAC__metadata_chain_check_if_tempfile_needed()
- * before writing via callbacks. */
-
-} FLAC__Metadata_ChainStatus;
-
-/** Maps a FLAC__Metadata_ChainStatus to a C string.
- *
- * Using a FLAC__Metadata_ChainStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__Metadata_ChainStatusString[];
-
-/*********** FLAC__Metadata_Chain ***********/
-
-/** Create a new chain instance.
- *
- * \retval FLAC__Metadata_Chain*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void);
-
-/** Free a chain instance. Deletes the object pointed to by \a chain.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain);
-
-/** Get the current status of the chain. Call this after a function
- * returns \c false to get the reason for the error. Also resets the
- * status to FLAC__METADATA_CHAIN_STATUS_OK.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__Metadata_ChainStatus
- * The current status of the chain.
- */
-FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain);
-
-/** Read all metadata from a FLAC file into the chain.
- *
- * \param chain A pointer to an existing chain.
- * \param filename The path to the FLAC file to read.
- * \assert
- * \code chain != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a filename, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename);
-
-/** Read all metadata from an Ogg FLAC file into the chain.
- *
- * \note Ogg FLAC metadata data writing is not supported yet and
- * FLAC__metadata_chain_write() will fail.
- *
- * \param chain A pointer to an existing chain.
- * \param filename The path to the Ogg FLAC file to read.
- * \assert
- * \code chain != NULL \endcode
- * \code filename != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a filename, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename);
-
-/** Read all metadata from a FLAC stream into the chain via I/O callbacks.
- *
- * The \a handle need only be open for reading, but must be seekable.
- * The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * \param chain A pointer to an existing chain.
- * \param handle The I/O handle of the FLAC stream to read. The
- * handle will NOT be closed after the metadata is read;
- * that is the duty of the caller.
- * \param callbacks
- * A set of callbacks to use for I/O. The mandatory
- * callbacks are \a read, \a seek, and \a tell.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a handle, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Read all metadata from an Ogg FLAC stream into the chain via I/O callbacks.
- *
- * The \a handle need only be open for reading, but must be seekable.
- * The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * \note Ogg FLAC metadata data writing is not supported yet and
- * FLAC__metadata_chain_write() will fail.
- *
- * \param chain A pointer to an existing chain.
- * \param handle The I/O handle of the Ogg FLAC stream to read. The
- * handle will NOT be closed after the metadata is read;
- * that is the duty of the caller.
- * \param callbacks
- * A set of callbacks to use for I/O. The mandatory
- * callbacks are \a read, \a seek, and \a tell.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if a valid list of metadata blocks was read from
- * \a handle, else \c false. On failure, check the status with
- * FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Checks if writing the given chain would require the use of a
- * temporary file, or if it could be written in place.
- *
- * Under certain conditions, padding can be utilized so that writing
- * edited metadata back to the FLAC file does not require rewriting the
- * entire file. If rewriting is required, then a temporary workfile is
- * required. When writing metadata using callbacks, you must check
- * this function to know whether to call
- * FLAC__metadata_chain_write_with_callbacks() or
- * FLAC__metadata_chain_write_with_callbacks_and_tempfile(). When
- * writing with FLAC__metadata_chain_write(), the temporary file is
- * handled internally.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding
- * Whether or not padding will be allowed to be used
- * during the write. The value of \a use_padding given
- * here must match the value later passed to
- * FLAC__metadata_chain_write_with_callbacks() or
- * FLAC__metadata_chain_write_with_callbacks_with_tempfile().
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if writing the current chain would require a tempfile, or
- * \c false if metadata can be written in place.
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding);
-
-/** Write all metadata out to the FLAC file. This function tries to be as
- * efficient as possible; how the metadata is actually written is shown by
- * the following:
- *
- * If the current chain is the same size as the existing metadata, the new
- * data is written in place.
- *
- * If the current chain is longer than the existing metadata, and
- * \a use_padding is \c true, and the last block is a PADDING block of
- * sufficient length, the function will truncate the final padding block
- * so that the overall size of the metadata is the same as the existing
- * metadata, and then just rewrite the metadata. Otherwise, if not all of
- * the above conditions are met, the entire FLAC file must be rewritten.
- * If you want to use padding this way it is a good idea to call
- * FLAC__metadata_chain_sort_padding() first so that you have the maximum
- * amount of padding to work with, unless you need to preserve ordering
- * of the PADDING blocks for some reason.
- *
- * If the current chain is shorter than the existing metadata, and
- * \a use_padding is \c true, and the final block is a PADDING block, the padding
- * is extended to make the overall size the same as the existing data. If
- * \a use_padding is \c true and the last block is not a PADDING block, a new
- * PADDING block is added to the end of the new data to make it the same
- * size as the existing data (if possible, see the note to
- * FLAC__metadata_simple_iterator_set_block() about the four byte limit)
- * and the new data is written in place. If none of the above apply or
- * \a use_padding is \c false, the entire FLAC file is rewritten.
- *
- * If \a preserve_file_stats is \c true, the owner and modification time will
- * be preserved even if the FLAC file is written.
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg(), not
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks().
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See above.
- * \param preserve_file_stats See above.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats);
-
-/** Write all metadata out to a FLAC stream via callbacks.
- *
- * (See FLAC__metadata_chain_write() for the details on how padding is
- * used to write metadata in place if possible.)
- *
- * The \a handle must be open for updating and be seekable. The
- * equivalent minimum stdio fopen() file mode is \c "r+" (or \c "r+b"
- * for Windows).
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
- * \c false.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See FLAC__metadata_chain_write()
- * \param handle The I/O handle of the FLAC stream to write. The
- * handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param callbacks A set of callbacks to use for I/O. The mandatory
- * callbacks are \a write and \a seek.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
-
-/** Write all metadata out to a FLAC stream via callbacks.
- *
- * (See FLAC__metadata_chain_write() for the details on how padding is
- * used to write metadata in place if possible.)
- *
- * This version of the write-with-callbacks function must be used when
- * FLAC__metadata_chain_check_if_tempfile_needed() returns true. In
- * this function, you must supply an I/O handle corresponding to the
- * FLAC file to edit, and a temporary handle to which the new FLAC
- * file will be written. It is the caller's job to move this temporary
- * FLAC file on top of the original FLAC file to complete the metadata
- * edit.
- *
- * The \a handle must be open for reading and be seekable. The
- * equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
- * for Windows).
- *
- * The \a temp_handle must be open for writing. The
- * equivalent minimum stdio fopen() file mode is \c "w" (or \c "wb"
- * for Windows). It should be an empty stream, or at least positioned
- * at the start-of-file (in which case it is the caller's duty to
- * truncate it on return).
- *
- * For this write function to be used, the chain must have been read with
- * FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
- * not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
- * Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
- * \c true.
- *
- * \param chain A pointer to an existing chain.
- * \param use_padding See FLAC__metadata_chain_write()
- * \param handle The I/O handle of the original FLAC stream to read.
- * The handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param callbacks A set of callbacks to use for I/O on \a handle.
- * The mandatory callbacks are \a read, \a seek, and
- * \a eof.
- * \param temp_handle The I/O handle of the FLAC stream to write. The
- * handle will NOT be closed after the metadata is
- * written; that is the duty of the caller.
- * \param temp_callbacks
- * A set of callbacks to use for I/O on temp_handle.
- * The only mandatory callback is \a write.
- * \assert
- * \code chain != NULL \endcode
- * \retval FLAC__bool
- * \c true if the write succeeded, else \c false. On failure,
- * check the status with FLAC__metadata_chain_status().
- */
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks);
-
-/** Merge adjacent PADDING blocks into a single block.
- *
- * \note This function does not write to the FLAC file, it only
- * modifies the chain.
- *
- * \warning Any iterator on the current chain will become invalid after this
- * call. You should delete the iterator and get a new one.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain);
-
-/** This function will move all PADDING blocks to the end on the metadata,
- * then merge them into a single block.
- *
- * \note This function does not write to the FLAC file, it only
- * modifies the chain.
- *
- * \warning Any iterator on the current chain will become invalid after this
- * call. You should delete the iterator and get a new one.
- *
- * \param chain A pointer to an existing chain.
- * \assert
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain);
-
-
-/*********** FLAC__Metadata_Iterator ***********/
-
-/** Create a new iterator instance.
- *
- * \retval FLAC__Metadata_Iterator*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void);
-
-/** Free an iterator instance. Deletes the object pointed to by \a iterator.
- *
- * \param iterator A pointer to an existing iterator.
- * \assert
- * \code iterator != NULL \endcode
- */
-FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator);
-
-/** Initialize the iterator to point to the first metadata block in the
- * given chain.
- *
- * \param iterator A pointer to an existing iterator.
- * \param chain A pointer to an existing and initialized (read) chain.
- * \assert
- * \code iterator != NULL \endcode
- * \code chain != NULL \endcode
- */
-FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain);
-
-/** Moves the iterator forward one metadata block, returning \c false if
- * already at the end.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the last metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator);
-
-/** Moves the iterator backward one metadata block, returning \c false if
- * already at the beginning.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if already at the first metadata block of the chain, else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator);
-
-/** Get the type of the metadata block at the current position.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__MetadataType
- * The type of the metadata block at the current iterator position.
- */
-FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator);
-
-/** Get the metadata block at the current position. You can modify
- * the block in place but must write the chain before the changes
- * are reflected to the FLAC file. You do not need to call
- * FLAC__metadata_iterator_set_block() to reflect the changes;
- * the pointer returned by FLAC__metadata_iterator_get_block()
- * points directly into the chain.
- *
- * \warning
- * Do not call FLAC__metadata_object_delete() on the returned object;
- * to delete a block use FLAC__metadata_iterator_delete_block().
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__StreamMetadata*
- * The current metadata block.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator);
-
-/** Set the metadata block at the current position, replacing the existing
- * block. The new block passed in becomes owned by the chain and it will be
- * deleted when the chain is deleted.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \code block != NULL \endcode
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/** Removes the current block from the chain. If \a replace_with_padding is
- * \c true, the block will instead be replaced with a padding block of equal
- * size. You can not delete the STREAMINFO block. The iterator will be
- * left pointing to the block before the one just "deleted", even if
- * \a replace_with_padding is \c true.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param replace_with_padding See above.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met,
- * otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding);
-
-/** Insert a new block before the current block. You cannot insert a block
- * before the first STREAMINFO block. You cannot insert a STREAMINFO block
- * as there can be only one, the one that already exists at the head when you
- * read in a chain. The chain takes ownership of the new block and it will be
- * deleted when the chain is deleted. The iterator will be left pointing to
- * the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block to insert.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/** Insert a new block after the current block. You cannot insert a STREAMINFO
- * block as there can be only one, the one that already exists at the head when
- * you read in a chain. The chain takes ownership of the new block and it will
- * be deleted when the chain is deleted. The iterator will be left pointing to
- * the new block.
- *
- * \param iterator A pointer to an existing initialized iterator.
- * \param block A pointer to a metadata block to insert.
- * \assert
- * \code iterator != NULL \endcode
- * \a iterator has been successfully initialized with
- * FLAC__metadata_iterator_init()
- * \retval FLAC__bool
- * \c false if the conditions in the above description are not met, or
- * a memory allocation error occurs, otherwise \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
-
-/* \} */
-
-
-/** \defgroup flac_metadata_object FLAC/metadata.h: metadata object methods
- * \ingroup flac_metadata
- *
- * \brief
- * This module contains methods for manipulating FLAC metadata objects.
- *
- * Since many are variable length we have to be careful about the memory
- * management. We decree that all pointers to data in the object are
- * owned by the object and memory-managed by the object.
- *
- * Use the FLAC__metadata_object_new() and FLAC__metadata_object_delete()
- * functions to create all instances. When using the
- * FLAC__metadata_object_set_*() functions to set pointers to data, set
- * \a copy to \c true to have the function make it's own copy of the data, or
- * to \c false to give the object ownership of your data. In the latter case
- * your pointer must be freeable by free() and will be free()d when the object
- * is FLAC__metadata_object_delete()d. It is legal to pass a null pointer as
- * the data pointer to a FLAC__metadata_object_set_*() function as long as
- * the length argument is 0 and the \a copy argument is \c false.
- *
- * The FLAC__metadata_object_new() and FLAC__metadata_object_clone() function
- * will return \c NULL in the case of a memory allocation error, otherwise a new
- * object. The FLAC__metadata_object_set_*() functions return \c false in the
- * case of a memory allocation error.
- *
- * We don't have the convenience of C++ here, so note that the library relies
- * on you to keep the types straight. In other words, if you pass, for
- * example, a FLAC__StreamMetadata* that represents a STREAMINFO block to
- * FLAC__metadata_object_application_set_data(), you will get an assertion
- * failure.
- *
- * For convenience the FLAC__metadata_object_vorbiscomment_*() functions
- * maintain a trailing NUL on each Vorbis comment entry. This is not counted
- * toward the length or stored in the stream, but it can make working with plain
- * comments (those that don't contain embedded-NULs in the value) easier.
- * Entries passed into these functions have trailing NULs added if missing, and
- * returned entries are guaranteed to have a trailing NUL.
- *
- * The FLAC__metadata_object_vorbiscomment_*() functions that take a Vorbis
- * comment entry/name/value will first validate that it complies with the Vorbis
- * comment specification and return false if it does not.
- *
- * There is no need to recalculate the length field on metadata blocks you
- * have modified. They will be calculated automatically before they are
- * written back to a file.
- *
- * \{
- */
-
-
-/** Create a new metadata object instance of the given type.
- *
- * The object will be "empty"; i.e. values and data pointers will be \c 0,
- * with the exception of FLAC__METADATA_TYPE_VORBIS_COMMENT, which will have
- * the vendor string set (but zero comments).
- *
- * Do not pass in a value greater than or equal to
- * \a FLAC__METADATA_TYPE_UNDEFINED unless you really know what you're
- * doing.
- *
- * \param type Type of object to create
- * \retval FLAC__StreamMetadata*
- * \c NULL if there was an error allocating memory or the type code is
- * greater than FLAC__MAX_METADATA_TYPE_CODE, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type);
-
-/** Create a copy of an existing metadata object.
- *
- * The copy is a "deep" copy, i.e. dynamically allocated data within the
- * object is also copied. The caller takes ownership of the new block and
- * is responsible for freeing it with FLAC__metadata_object_delete().
- *
- * \param object Pointer to object to copy.
- * \assert
- * \code object != NULL \endcode
- * \retval FLAC__StreamMetadata*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object);
-
-/** Free a metadata object. Deletes the object pointed to by \a object.
- *
- * The delete is a "deep" delete, i.e. dynamically allocated data within the
- * object is also deleted.
- *
- * \param object A pointer to an existing object.
- * \assert
- * \code object != NULL \endcode
- */
-FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object);
-
-/** Compares two metadata objects.
- *
- * The compare is "deep", i.e. dynamically allocated data within the
- * object is also compared.
- *
- * \param block1 A pointer to an existing object.
- * \param block2 A pointer to an existing object.
- * \assert
- * \code block1 != NULL \endcode
- * \code block2 != NULL \endcode
- * \retval FLAC__bool
- * \c true if objects are identical, else \c false.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2);
-
-/** Sets the application data of an APPLICATION block.
- *
- * If \a copy is \c true, a copy of the data is stored; otherwise, the object
- * takes ownership of the pointer. The existing data will be freed if this
- * function is successful, otherwise the original data will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
- *
- * \param object A pointer to an existing APPLICATION object.
- * \param data A pointer to the data to set.
- * \param length The length of \a data in bytes.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_APPLICATION \endcode
- * \code (data != NULL && length > 0) ||
- * (data == NULL && length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy);
-
-/** Resize the seekpoint array.
- *
- * If the size shrinks, elements will truncated; if it grows, new placeholder
- * points will be added to the end.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param new_num_points The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code (object->data.seek_table.points == NULL && object->data.seek_table.num_points == 0) ||
- * (object->data.seek_table.points != NULL && object->data.seek_table.num_points > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points);
-
-/** Set a seekpoint in a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \param point The point to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points > point_num \endcode
- */
-FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point);
-
-/** Insert a seekpoint into a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \param point The point to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points >= point_num \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point);
-
-/** Delete a seekpoint from a seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param point_num Index into seekpoint array to set.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code object->data.seek_table.num_points > point_num \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num);
-
-/** Check a seektable to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * seektable.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if seek table is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object);
-
-/** Append a number of placeholder points to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param num The number of placeholder points to append.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num);
-
-/** Append a specific seek point template to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param sample_number The sample number of the seek point template.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number);
-
-/** Append specific seek point templates to the end of a seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param sample_numbers An array of sample numbers for the seek points.
- * \param num The number of seek point templates to append.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num);
-
-/** Append a set of evenly-spaced seek point templates to the end of a
- * seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param num The number of placeholder points to append.
- * \param total_samples The total number of samples to be encoded;
- * the seekpoints will be spaced approximately
- * \a total_samples / \a num samples apart.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code total_samples > 0 \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples);
-
-/** Append a set of evenly-spaced seek point templates to the end of a
- * seek table.
- *
- * \note
- * As with the other ..._seektable_template_... functions, you should
- * call FLAC__metadata_object_seektable_template_sort() when finished
- * to make the seek table legal.
- *
- * \param object A pointer to an existing SEEKTABLE object.
- * \param samples The number of samples apart to space the placeholder
- * points. The first point will be at sample \c 0, the
- * second at sample \a samples, then 2*\a samples, and
- * so on. As long as \a samples and \a total_samples
- * are greater than \c 0, there will always be at least
- * one seekpoint at sample \c 0.
- * \param total_samples The total number of samples to be encoded;
- * the seekpoints will be spaced
- * \a samples samples apart.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \code samples > 0 \endcode
- * \code total_samples > 0 \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples);
-
-/** Sort a seek table's seek points according to the format specification,
- * removing duplicates.
- *
- * \param object A pointer to a seek table to be sorted.
- * \param compact If \c false, behaves like FLAC__format_seektable_sort().
- * If \c true, duplicates are deleted and the seek table is
- * shrunk appropriately; the number of placeholder points
- * present in the seek table will be the same after the call
- * as before.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact);
-
-/** Sets the vendor string in a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The entry to set the vendor string to.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Resize the comment array.
- *
- * If the size shrinks, elements will truncated; if it grows, new empty
- * fields will be added to the end.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param new_num_comments The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (object->data.vorbis_comment.comments == NULL && object->data.vorbis_comment.num_comments == 0) ||
- * (object->data.vorbis_comment.comments != NULL && object->data.vorbis_comment.num_comments > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments);
-
-/** Sets a comment in a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num Index into comment array to set.
- * \param entry The entry to set the comment to.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code comment_num < object->data.vorbis_comment.num_comments \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Insert a comment in a VORBIS_COMMENT block at the given index.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num The index at which to insert the comment. The comments
- * at and after \a comment_num move right one position.
- * To append a comment to the end, set \a comment_num to
- * \c object->data.vorbis_comment.num_comments .
- * \param entry The comment to insert.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code object->data.vorbis_comment.num_comments >= comment_num \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Appends a comment to a VORBIS_COMMENT block.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The comment to insert.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
-
-/** Replaces comments in a VORBIS_COMMENT block with a new one.
- *
- * For convenience, a trailing NUL is added to the entry if it doesn't have
- * one already.
- *
- * Depending on the value of \a all, either all or just the first comment
- * whose field name(s) match the given entry's name will be replaced by the
- * given entry. If no comments match, \a entry will simply be appended.
- *
- * If \a copy is \c true, a copy of the entry is stored; otherwise, the object
- * takes ownership of the \c entry.entry pointer.
- *
- * \note If this function returns \c false, the caller still owns the
- * pointer.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param entry The comment to insert.
- * \param all If \c true, all comments whose field name matches
- * \a entry's field name will be removed, and \a entry will
- * be inserted at the position of the first matching
- * comment. If \c false, only the first comment whose
- * field name matches \a entry's field name will be
- * replaced with \a entry.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code (entry.entry != NULL && entry.length > 0) ||
- * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy);
-
-/** Delete a comment in a VORBIS_COMMENT block at the given index.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param comment_num The index of the comment to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code object->data.vorbis_comment.num_comments > comment_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num);
-
-/** Creates a Vorbis comment entry from NUL-terminated name and value strings.
- *
- * On return, the filled-in \a entry->entry pointer will point to malloc()ed
- * memory and shall be owned by the caller. For convenience the entry will
- * have a terminating NUL.
- *
- * \param entry A pointer to a Vorbis comment entry. The entry's
- * \c entry pointer should not point to allocated
- * memory as it will be overwritten.
- * \param field_name The field name in ASCII, \c NUL terminated.
- * \param field_value The field value in UTF-8, \c NUL terminated.
- * \assert
- * \code entry != NULL \endcode
- * \code field_name != NULL \endcode
- * \code field_value != NULL \endcode
- * \retval FLAC__bool
- * \c false if malloc() fails, or if \a field_name or \a field_value does
- * not comply with the Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value);
-
-/** Splits a Vorbis comment entry into NUL-terminated name and value strings.
- *
- * The returned pointers to name and value will be allocated by malloc()
- * and shall be owned by the caller.
- *
- * \param entry An existing Vorbis comment entry.
- * \param field_name The address of where the returned pointer to the
- * field name will be stored.
- * \param field_value The address of where the returned pointer to the
- * field value will be stored.
- * \assert
- * \code (entry.entry != NULL && entry.length > 0) \endcode
- * \code memchr(entry.entry, '=', entry.length) != NULL \endcode
- * \code field_name != NULL \endcode
- * \code field_value != NULL \endcode
- * \retval FLAC__bool
- * \c false if memory allocation fails or \a entry does not comply with the
- * Vorbis comment specification, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value);
-
-/** Check if the given Vorbis comment entry's field name matches the given
- * field name.
- *
- * \param entry An existing Vorbis comment entry.
- * \param field_name The field name to check.
- * \param field_name_length The length of \a field_name, not including the
- * terminating \c NUL.
- * \assert
- * \code (entry.entry != NULL && entry.length > 0) \endcode
- * \retval FLAC__bool
- * \c true if the field names match, else \c false
- */
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length);
-
-/** Find a Vorbis comment with the given field name.
- *
- * The search begins at entry number \a offset; use an offset of 0 to
- * search from the beginning of the comment array.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param offset The offset into the comment array from where to start
- * the search.
- * \param field_name The field name of the comment to find.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \code field_name != NULL \endcode
- * \retval int
- * The offset in the comment array of the first comment whose field
- * name matches \a field_name, or \c -1 if no match was found.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name);
-
-/** Remove first Vorbis comment matching the given field name.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param field_name The field name of comment to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \retval int
- * \c -1 for memory allocation error, \c 0 for no matching entries,
- * \c 1 for one matching entry deleted.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name);
-
-/** Remove all Vorbis comments matching the given field name.
- *
- * \param object A pointer to an existing VORBIS_COMMENT object.
- * \param field_name The field name of comments to delete.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
- * \retval int
- * \c -1 for memory allocation error, \c 0 for no matching entries,
- * else the number of matching entries deleted.
- */
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name);
-
-/** Create a new CUESHEET track instance.
- *
- * The object will be "empty"; i.e. values and data pointers will be \c 0.
- *
- * \retval FLAC__StreamMetadata_CueSheet_Track*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void);
-
-/** Create a copy of an existing CUESHEET track object.
- *
- * The copy is a "deep" copy, i.e. dynamically allocated data within the
- * object is also copied. The caller takes ownership of the new object and
- * is responsible for freeing it with
- * FLAC__metadata_object_cuesheet_track_delete().
- *
- * \param object Pointer to object to copy.
- * \assert
- * \code object != NULL \endcode
- * \retval FLAC__StreamMetadata_CueSheet_Track*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object);
-
-/** Delete a CUESHEET track object
- *
- * \param object A pointer to an existing CUESHEET track object.
- * \assert
- * \code object != NULL \endcode
- */
-FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object);
-
-/** Resize a track's index point array.
- *
- * If the size shrinks, elements will truncated; if it grows, new blank
- * indices will be added to the end.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param new_num_indices The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code (object->data.cue_sheet.tracks[track_num].indices == NULL && object->data.cue_sheet.tracks[track_num].num_indices == 0) ||
- * (object->data.cue_sheet.tracks[track_num].indices != NULL && object->data.cue_sheet.tracks[track_num].num_indices > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices);
-
-/** Insert an index point in a CUESHEET track at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param index_num The index into the track's index array at which to
- * insert the index point. NOTE: this is not necessarily
- * the same as the index point's \a number field. The
- * indices at and after \a index_num move right one
- * position. To append an index point to the end, set
- * \a index_num to
- * \c object->data.cue_sheet.tracks[track_num].num_indices .
- * \param index The index point to insert.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index index);
-
-/** Insert a blank index point in a CUESHEET track at the given index.
- *
- * A blank index point is one in which all field values are zero.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index of the track to modify. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param index_num The index into the track's index array at which to
- * insert the index point. NOTE: this is not necessarily
- * the same as the index point's \a number field. The
- * indices at and after \a index_num move right one
- * position. To append an index point to the end, set
- * \a index_num to
- * \c object->data.cue_sheet.tracks[track_num].num_indices .
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num);
-
-/** Delete an index point in a CUESHEET track at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index into the track array of the track to
- * modify. NOTE: this is not necessarily the same
- * as the track's \a number field.
- * \param index_num The index into the track's index array of the index
- * to delete. NOTE: this is not necessarily the same
- * as the index's \a number field.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \code object->data.cue_sheet.tracks[track_num].num_indices > index_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num);
-
-/** Resize the track array.
- *
- * If the size shrinks, elements will truncated; if it grows, new blank
- * tracks will be added to the end.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param new_num_tracks The desired length of the array; may be \c 0.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code (object->data.cue_sheet.tracks == NULL && object->data.cue_sheet.num_tracks == 0) ||
- * (object->data.cue_sheet.tracks != NULL && object->data.cue_sheet.num_tracks > 0) \endcode
- * \retval FLAC__bool
- * \c false if memory allocation error, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks);
-
-/** Sets a track in a CUESHEET block.
- *
- * If \a copy is \c true, a copy of the track is stored; otherwise, the object
- * takes ownership of the \a track pointer.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num Index into track array to set. NOTE: this is not
- * necessarily the same as the track's \a number field.
- * \param track The track to set the track to. You may safely pass in
- * a const pointer if \a copy is \c true.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code track_num < object->data.cue_sheet.num_tracks \endcode
- * \code (track->indices != NULL && track->num_indices > 0) ||
- * (track->indices == NULL && track->num_indices == 0) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
-
-/** Insert a track in a CUESHEET block at the given index.
- *
- * If \a copy is \c true, a copy of the track is stored; otherwise, the object
- * takes ownership of the \a track pointer.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index at which to insert the track. NOTE: this
- * is not necessarily the same as the track's \a number
- * field. The tracks at and after \a track_num move right
- * one position. To append a track to the end, set
- * \a track_num to \c object->data.cue_sheet.num_tracks .
- * \param track The track to insert. You may safely pass in a const
- * pointer if \a copy is \c true.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks >= track_num \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
-
-/** Insert a blank track in a CUESHEET block at the given index.
- *
- * A blank track is one in which all field values are zero.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index at which to insert the track. NOTE: this
- * is not necessarily the same as the track's \a number
- * field. The tracks at and after \a track_num move right
- * one position. To append a track to the end, set
- * \a track_num to \c object->data.cue_sheet.num_tracks .
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks >= track_num \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num);
-
-/** Delete a track in a CUESHEET block at the given index.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param track_num The index into the track array of the track to
- * delete. NOTE: this is not necessarily the same
- * as the track's \a number field.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \code object->data.cue_sheet.num_tracks > track_num \endcode
- * \retval FLAC__bool
- * \c false if realloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num);
-
-/** Check a cue sheet to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * cue sheet.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \param check_cd_da_subset If \c true, check CUESHEET against more
- * stringent requirements for a CD-DA (audio) disc.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \retval FLAC__bool
- * \c false if cue sheet is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation);
-
-/** Calculate and return the CDDB/freedb ID for a cue sheet. The function
- * assumes the cue sheet corresponds to a CD; the result is undefined
- * if the cuesheet's is_cd bit is not set.
- *
- * \param object A pointer to an existing CUESHEET object.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
- * \retval FLAC__uint32
- * The unsigned integer representation of the CDDB/freedb ID
- */
-FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object);
-
-/** Sets the MIME type of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the string is stored; otherwise, the object
- * takes ownership of the pointer. The existing string will be freed if this
- * function is successful, otherwise the original string will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a mime_type if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param mime_type A pointer to the MIME type string. The string must be
- * ASCII characters 0x20-0x7e, NUL-terminated. No validation
- * is done.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (mime_type != NULL) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy);
-
-/** Sets the description of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the string is stored; otherwise, the object
- * takes ownership of the pointer. The existing string will be freed if this
- * function is successful, otherwise the original string will remain if \a copy
- * is \c true and malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a description if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param description A pointer to the description string. The string must be
- * valid UTF-8, NUL-terminated. No validation is done.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (description != NULL) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy);
-
-/** Sets the picture data of a PICTURE block.
- *
- * If \a copy is \c true, a copy of the data is stored; otherwise, the object
- * takes ownership of the pointer. Also sets the \a data_length field of the
- * metadata object to what is passed in as the \a length parameter. The
- * existing data will be freed if this function is successful, otherwise the
- * original data and data_length will remain if \a copy is \c true and
- * malloc() fails.
- *
- * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
- *
- * \param object A pointer to an existing PICTURE object.
- * \param data A pointer to the data to set.
- * \param length The length of \a data in bytes.
- * \param copy See above.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \code (data != NULL && length > 0) ||
- * (data == NULL && length == 0 && copy == false) \endcode
- * \retval FLAC__bool
- * \c false if \a copy is \c true and malloc() fails, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy);
-
-/** Check a PICTURE block to see if it conforms to the FLAC specification.
- * See the format specification for limits on the contents of the
- * PICTURE block.
- *
- * \param object A pointer to existing PICTURE block to be checked.
- * \param violation Address of a pointer to a string. If there is a
- * violation, a pointer to a string explanation of the
- * violation will be returned here. \a violation may be
- * \c NULL if you don't need the returned string. Do not
- * free the returned string; it will always point to static
- * data.
- * \assert
- * \code object != NULL \endcode
- * \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
- * \retval FLAC__bool
- * \c false if PICTURE block is illegal, else \c true.
- */
-FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__ORDINALS_H
-#define FLAC__ORDINALS_H
-
-#if defined(_MSC_VER) && _MSC_VER < 1600
-
-/* Microsoft Visual Studio earlier than the 2010 version did not provide
- * the 1999 ISO C Standard header file <stdint.h>.
- */
-
-typedef __int8 FLAC__int8;
-typedef unsigned __int8 FLAC__uint8;
-
-typedef __int16 FLAC__int16;
-typedef __int32 FLAC__int32;
-typedef __int64 FLAC__int64;
-typedef unsigned __int16 FLAC__uint16;
-typedef unsigned __int32 FLAC__uint32;
-typedef unsigned __int64 FLAC__uint64;
-
-#else
-
-/* For MSVC 2010 and everything else which provides <stdint.h>. */
-
-#include <stdint.h>
-
-typedef int8_t FLAC__int8;
-typedef uint8_t FLAC__uint8;
-
-typedef int16_t FLAC__int16;
-typedef int32_t FLAC__int32;
-typedef int64_t FLAC__int64;
-typedef uint16_t FLAC__uint16;
-typedef uint32_t FLAC__uint32;
-typedef uint64_t FLAC__uint64;
-
-#endif
-
-typedef int FLAC__bool;
-
-typedef FLAC__uint8 FLAC__byte;
-
-
-#ifdef true
-#undef true
-#endif
-#ifdef false
-#undef false
-#endif
-#ifndef __cplusplus
-#define true 1
-#define false 0
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__STREAM_DECODER_H
-#define FLAC__STREAM_DECODER_H
-
-#include <stdio.h> /* for FILE */
-#include "export.h"
-#include "format.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \file include/FLAC/stream_decoder.h
- *
- * \brief
- * This module contains the functions which implement the stream
- * decoder.
- *
- * See the detailed documentation in the
- * \link flac_stream_decoder stream decoder \endlink module.
- */
-
-/** \defgroup flac_decoder FLAC/ \*_decoder.h: decoder interfaces
- * \ingroup flac
- *
- * \brief
- * This module describes the decoder layers provided by libFLAC.
- *
- * The stream decoder can be used to decode complete streams either from
- * the client via callbacks, or directly from a file, depending on how
- * it is initialized. When decoding via callbacks, the client provides
- * callbacks for reading FLAC data and writing decoded samples, and
- * handling metadata and errors. If the client also supplies seek-related
- * callback, the decoder function for sample-accurate seeking within the
- * FLAC input is also available. When decoding from a file, the client
- * needs only supply a filename or open \c FILE* and write/metadata/error
- * callbacks; the rest of the callbacks are supplied internally. For more
- * info see the \link flac_stream_decoder stream decoder \endlink module.
- */
-
-/** \defgroup flac_stream_decoder FLAC/stream_decoder.h: stream decoder interface
- * \ingroup flac_decoder
- *
- * \brief
- * This module contains the functions which implement the stream
- * decoder.
- *
- * The stream decoder can decode native FLAC, and optionally Ogg FLAC
- * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
- *
- * The basic usage of this decoder is as follows:
- * - The program creates an instance of a decoder using
- * FLAC__stream_decoder_new().
- * - The program overrides the default settings using
- * FLAC__stream_decoder_set_*() functions.
- * - The program initializes the instance to validate the settings and
- * prepare for decoding using
- * - FLAC__stream_decoder_init_stream() or FLAC__stream_decoder_init_FILE()
- * or FLAC__stream_decoder_init_file() for native FLAC,
- * - FLAC__stream_decoder_init_ogg_stream() or FLAC__stream_decoder_init_ogg_FILE()
- * or FLAC__stream_decoder_init_ogg_file() for Ogg FLAC
- * - The program calls the FLAC__stream_decoder_process_*() functions
- * to decode data, which subsequently calls the callbacks.
- * - The program finishes the decoding with FLAC__stream_decoder_finish(),
- * which flushes the input and output and resets the decoder to the
- * uninitialized state.
- * - The instance may be used again or deleted with
- * FLAC__stream_decoder_delete().
- *
- * In more detail, the program will create a new instance by calling
- * FLAC__stream_decoder_new(), then call FLAC__stream_decoder_set_*()
- * functions to override the default decoder options, and call
- * one of the FLAC__stream_decoder_init_*() functions.
- *
- * There are three initialization functions for native FLAC, one for
- * setting up the decoder to decode FLAC data from the client via
- * callbacks, and two for decoding directly from a FLAC file.
- *
- * For decoding via callbacks, use FLAC__stream_decoder_init_stream().
- * You must also supply several callbacks for handling I/O. Some (like
- * seeking) are optional, depending on the capabilities of the input.
- *
- * For decoding directly from a file, use FLAC__stream_decoder_init_FILE()
- * or FLAC__stream_decoder_init_file(). Then you must only supply an open
- * \c FILE* or filename and fewer callbacks; the decoder will handle
- * the other callbacks internally.
- *
- * There are three similarly-named init functions for decoding from Ogg
- * FLAC streams. Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
- * library has been built with Ogg support.
- *
- * Once the decoder is initialized, your program will call one of several
- * functions to start the decoding process:
- *
- * - FLAC__stream_decoder_process_single() - Tells the decoder to process at
- * most one metadata block or audio frame and return, calling either the
- * metadata callback or write callback, respectively, once. If the decoder
- * loses sync it will return with only the error callback being called.
- * - FLAC__stream_decoder_process_until_end_of_metadata() - Tells the decoder
- * to process the stream from the current location and stop upon reaching
- * the first audio frame. The client will get one metadata, write, or error
- * callback per metadata block, audio frame, or sync error, respectively.
- * - FLAC__stream_decoder_process_until_end_of_stream() - Tells the decoder
- * to process the stream from the current location until the read callback
- * returns FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM or
- * FLAC__STREAM_DECODER_READ_STATUS_ABORT. The client will get one metadata,
- * write, or error callback per metadata block, audio frame, or sync error,
- * respectively.
- *
- * When the decoder has finished decoding (normally or through an abort),
- * the instance is finished by calling FLAC__stream_decoder_finish(), which
- * ensures the decoder is in the correct state and frees memory. Then the
- * instance may be deleted with FLAC__stream_decoder_delete() or initialized
- * again to decode another stream.
- *
- * Seeking is exposed through the FLAC__stream_decoder_seek_absolute() method.
- * At any point after the stream decoder has been initialized, the client can
- * call this function to seek to an exact sample within the stream.
- * Subsequently, the first time the write callback is called it will be
- * passed a (possibly partial) block starting at that sample.
- *
- * If the client cannot seek via the callback interface provided, but still
- * has another way of seeking, it can flush the decoder using
- * FLAC__stream_decoder_flush() and start feeding data from the new position
- * through the read callback.
- *
- * The stream decoder also provides MD5 signature checking. If this is
- * turned on before initialization, FLAC__stream_decoder_finish() will
- * report when the decoded MD5 signature does not match the one stored
- * in the STREAMINFO block. MD5 checking is automatically turned off
- * (until the next FLAC__stream_decoder_reset()) if there is no signature
- * in the STREAMINFO block or when a seek is attempted.
- *
- * The FLAC__stream_decoder_set_metadata_*() functions deserve special
- * attention. By default, the decoder only calls the metadata_callback for
- * the STREAMINFO block. These functions allow you to tell the decoder
- * explicitly which blocks to parse and return via the metadata_callback
- * and/or which to skip. Use a FLAC__stream_decoder_set_metadata_respond_all(),
- * FLAC__stream_decoder_set_metadata_ignore() ... or FLAC__stream_decoder_set_metadata_ignore_all(),
- * FLAC__stream_decoder_set_metadata_respond() ... sequence to exactly specify
- * which blocks to return. Remember that metadata blocks can potentially
- * be big (for example, cover art) so filtering out the ones you don't
- * use can reduce the memory requirements of the decoder. Also note the
- * special forms FLAC__stream_decoder_set_metadata_respond_application(id)
- * and FLAC__stream_decoder_set_metadata_ignore_application(id) for
- * filtering APPLICATION blocks based on the application ID.
- *
- * STREAMINFO and SEEKTABLE blocks are always parsed and used internally, but
- * they still can legally be filtered from the metadata_callback.
- *
- * \note
- * The "set" functions may only be called when the decoder is in the
- * state FLAC__STREAM_DECODER_UNINITIALIZED, i.e. after
- * FLAC__stream_decoder_new() or FLAC__stream_decoder_finish(), but
- * before FLAC__stream_decoder_init_*(). If this is the case they will
- * return \c true, otherwise \c false.
- *
- * \note
- * FLAC__stream_decoder_finish() resets all settings to the constructor
- * defaults, including the callbacks.
- *
- * \{
- */
-
-
-/** State values for a FLAC__StreamDecoder
- *
- * The decoder's state can be obtained by calling FLAC__stream_decoder_get_state().
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_SEARCH_FOR_METADATA = 0,
- /**< The decoder is ready to search for metadata. */
-
- FLAC__STREAM_DECODER_READ_METADATA,
- /**< The decoder is ready to or is in the process of reading metadata. */
-
- FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC,
- /**< The decoder is ready to or is in the process of searching for the
- * frame sync code.
- */
-
- FLAC__STREAM_DECODER_READ_FRAME,
- /**< The decoder is ready to or is in the process of reading a frame. */
-
- FLAC__STREAM_DECODER_END_OF_STREAM,
- /**< The decoder has reached the end of the stream. */
-
- FLAC__STREAM_DECODER_OGG_ERROR,
- /**< An error occurred in the underlying Ogg layer. */
-
- FLAC__STREAM_DECODER_SEEK_ERROR,
- /**< An error occurred while seeking. The decoder must be flushed
- * with FLAC__stream_decoder_flush() or reset with
- * FLAC__stream_decoder_reset() before decoding can continue.
- */
-
- FLAC__STREAM_DECODER_ABORTED,
- /**< The decoder was aborted by the read or write callback. */
-
- FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
- /**< An error occurred allocating memory. The decoder is in an invalid
- * state and can no longer be used.
- */
-
- FLAC__STREAM_DECODER_UNINITIALIZED
- /**< The decoder is in the uninitialized state; one of the
- * FLAC__stream_decoder_init_*() functions must be called before samples
- * can be processed.
- */
-
-} FLAC__StreamDecoderState;
-
-/** Maps a FLAC__StreamDecoderState to a C string.
- *
- * Using a FLAC__StreamDecoderState as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderStateString[];
-
-
-/** Possible return values for the FLAC__stream_decoder_init_*() functions.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_INIT_STATUS_OK = 0,
- /**< Initialization was successful. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
- /**< The library was not compiled with support for the given container
- * format.
- */
-
- FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS,
- /**< A required callback was not supplied. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR,
- /**< An error occurred allocating memory. */
-
- FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE,
- /**< fopen() failed in FLAC__stream_decoder_init_file() or
- * FLAC__stream_decoder_init_ogg_file(). */
-
- FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED
- /**< FLAC__stream_decoder_init_*() was called when the decoder was
- * already initialized, usually because
- * FLAC__stream_decoder_finish() was not called.
- */
-
-} FLAC__StreamDecoderInitStatus;
-
-/** Maps a FLAC__StreamDecoderInitStatus to a C string.
- *
- * Using a FLAC__StreamDecoderInitStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderInitStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder read callback.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_READ_STATUS_CONTINUE,
- /**< The read was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM,
- /**< The read was attempted while at the end of the stream. Note that
- * the client must only return this value when the read callback was
- * called when already at the end of the stream. Otherwise, if the read
- * itself moves to the end of the stream, the client should still return
- * the data and \c FLAC__STREAM_DECODER_READ_STATUS_CONTINUE, and then on
- * the next read callback it should return
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM with a byte count
- * of \c 0.
- */
-
- FLAC__STREAM_DECODER_READ_STATUS_ABORT
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
-} FLAC__StreamDecoderReadStatus;
-
-/** Maps a FLAC__StreamDecoderReadStatus to a C string.
- *
- * Using a FLAC__StreamDecoderReadStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderReadStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder seek callback.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_SEEK_STATUS_OK,
- /**< The seek was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_SEEK_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamDecoderSeekStatus;
-
-/** Maps a FLAC__StreamDecoderSeekStatus to a C string.
- *
- * Using a FLAC__StreamDecoderSeekStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder tell callback.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_TELL_STATUS_OK,
- /**< The tell was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_TELL_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- /**< Client does not support telling the position. */
-
-} FLAC__StreamDecoderTellStatus;
-
-/** Maps a FLAC__StreamDecoderTellStatus to a C string.
- *
- * Using a FLAC__StreamDecoderTellStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderTellStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder length callback.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_LENGTH_STATUS_OK,
- /**< The length call was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR,
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
- FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- /**< Client does not support reporting the length. */
-
-} FLAC__StreamDecoderLengthStatus;
-
-/** Maps a FLAC__StreamDecoderLengthStatus to a C string.
- *
- * Using a FLAC__StreamDecoderLengthStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[];
-
-
-/** Return values for the FLAC__StreamDecoder write callback.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE,
- /**< The write was OK and decoding can continue. */
-
- FLAC__STREAM_DECODER_WRITE_STATUS_ABORT
- /**< An unrecoverable error occurred. The decoder will return from the process call. */
-
-} FLAC__StreamDecoderWriteStatus;
-
-/** Maps a FLAC__StreamDecoderWriteStatus to a C string.
- *
- * Using a FLAC__StreamDecoderWriteStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[];
-
-
-/** Possible values passed back to the FLAC__StreamDecoder error callback.
- * \c FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC is the generic catch-
- * all. The rest could be caused by bad sync (false synchronization on
- * data that is not the start of a frame) or corrupted data. The error
- * itself is the decoder's best guess at what happened assuming a correct
- * sync. For example \c FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER
- * could be caused by a correct sync on the start of a frame, but some
- * data in the frame header was corrupted. Or it could be the result of
- * syncing on a point the stream that looked like the starting of a frame
- * but was not. \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM
- * could be because the decoder encountered a valid frame made by a future
- * version of the encoder which it cannot parse, or because of a false
- * sync making it appear as though an encountered frame was generated by
- * a future encoder.
- */
-typedef enum {
-
- FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC,
- /**< An error in the stream caused the decoder to lose synchronization. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER,
- /**< The decoder encountered a corrupted frame header. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH,
- /**< The frame's data did not match the CRC in the footer. */
-
- FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM
- /**< The decoder encountered reserved fields in use in the stream. */
-
-} FLAC__StreamDecoderErrorStatus;
-
-/** Maps a FLAC__StreamDecoderErrorStatus to a C string.
- *
- * Using a FLAC__StreamDecoderErrorStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[];
-
-
-/***********************************************************************
- *
- * class FLAC__StreamDecoder
- *
- ***********************************************************************/
-
-struct FLAC__StreamDecoderProtected;
-struct FLAC__StreamDecoderPrivate;
-/** The opaque structure definition for the stream decoder type.
- * See the \link flac_stream_decoder stream decoder module \endlink
- * for a detailed description.
- */
-typedef struct {
- struct FLAC__StreamDecoderProtected *protected_; /* avoid the C++ keyword 'protected' */
- struct FLAC__StreamDecoderPrivate *private_; /* avoid the C++ keyword 'private' */
-} FLAC__StreamDecoder;
-
-/** Signature for the read callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs more input data. The address of the
- * buffer to be filled is supplied, along with the number of bytes the
- * buffer can hold. The callback may choose to supply less data and
- * modify the byte count but must be careful not to overflow the buffer.
- * The callback then returns a status code chosen from
- * FLAC__StreamDecoderReadStatus.
- *
- * Here is an example of a read callback for stdio streams:
- * \code
- * FLAC__StreamDecoderReadStatus read_cb(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(*bytes > 0) {
- * *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
- * if(ferror(file))
- * return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- * else if(*bytes == 0)
- * return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- * else
- * return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- * }
- * else
- * return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param buffer A pointer to a location for the callee to store
- * data to be decoded.
- * \param bytes A pointer to the size of the buffer. On entry
- * to the callback, it contains the maximum number
- * of bytes that may be stored in \a buffer. The
- * callee must set it to the actual number of bytes
- * stored (0 in case of error or end-of-stream) before
- * returning.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderReadStatus
- * The callee's return status. Note that the callback should return
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM if and only if
- * zero bytes were read and there is no more data to be read.
- */
-typedef FLAC__StreamDecoderReadStatus (*FLAC__StreamDecoderReadCallback)(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/** Signature for the seek callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs to seek the input stream. The decoder
- * will pass the absolute byte offset to seek to, 0 meaning the
- * beginning of the stream.
- *
- * Here is an example of a seek callback for stdio streams:
- * \code
- * FLAC__StreamDecoderSeekStatus seek_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
- * else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- * return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
- * else
- * return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param absolute_byte_offset The offset from the beginning of the stream
- * to seek to.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderSeekStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderSeekStatus (*FLAC__StreamDecoderSeekCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-
-/** Signature for the tell callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder wants to know the current position of the
- * stream. The callback should return the byte offset from the
- * beginning of the stream.
- *
- * Here is an example of a tell callback for stdio streams:
- * \code
- * FLAC__StreamDecoderTellStatus tell_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * off_t pos;
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
- * else if((pos = ftello(file)) < 0)
- * return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
- * else {
- * *absolute_byte_offset = (FLAC__uint64)pos;
- * return FLAC__STREAM_DECODER_TELL_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param absolute_byte_offset A pointer to storage for the current offset
- * from the beginning of the stream.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderTellStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderTellStatus (*FLAC__StreamDecoderTellCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-
-/** Signature for the length callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder wants to know the total length of the stream
- * in bytes.
- *
- * Here is an example of a length callback for stdio streams:
- * \code
- * FLAC__StreamDecoderLengthStatus length_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * struct stat filestats;
- *
- * if(file == stdin)
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
- * else if(fstat(fileno(file), &filestats) != 0)
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
- * else {
- * *stream_length = (FLAC__uint64)filestats.st_size;
- * return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param stream_length A pointer to storage for the length of the stream
- * in bytes.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderLengthStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderLengthStatus (*FLAC__StreamDecoderLengthCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
-
-/** Signature for the EOF callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_decoder_init*_stream(). The supplied function will be
- * called when the decoder needs to know if the end of the stream has
- * been reached.
- *
- * Here is an example of a EOF callback for stdio streams:
- * FLAC__bool eof_cb(const FLAC__StreamDecoder *decoder, void *client_data)
- * \code
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * return feof(file)? true : false;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__bool
- * \c true if the currently at the end of the stream, else \c false.
- */
-typedef FLAC__bool (*FLAC__StreamDecoderEofCallback)(const FLAC__StreamDecoder *decoder, void *client_data);
-
-/** Signature for the write callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called when the decoder has decoded a
- * single audio frame. The decoder will pass the frame metadata as well
- * as an array of pointers (one for each channel) pointing to the
- * decoded audio.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param frame The description of the decoded frame. See
- * FLAC__Frame.
- * \param buffer An array of pointers to decoded channels of data.
- * Each pointer will point to an array of signed
- * samples of length \a frame->header.blocksize.
- * Channels will be ordered according to the FLAC
- * specification; see the documentation for the
- * <A HREF="../format.html#frame_header">frame header</A>.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- * \retval FLAC__StreamDecoderWriteStatus
- * The callee's return status.
- */
-typedef FLAC__StreamDecoderWriteStatus (*FLAC__StreamDecoderWriteCallback)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-
-/** Signature for the metadata callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called when the decoder has decoded a
- * metadata block. In a valid FLAC file there will always be one
- * \c STREAMINFO block, followed by zero or more other metadata blocks.
- * These will be supplied by the decoder in the same order as they
- * appear in the stream and always before the first audio frame (i.e.
- * write callback). The metadata block that is passed in must not be
- * modified, and it doesn't live beyond the callback, so you should make
- * a copy of it with FLAC__metadata_object_clone() if you will need it
- * elsewhere. Since metadata blocks can potentially be large, by
- * default the decoder only calls the metadata callback for the
- * \c STREAMINFO block; you can instruct the decoder to pass or filter
- * other blocks with FLAC__stream_decoder_set_metadata_*() calls.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param metadata The decoded metadata block.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- */
-typedef void (*FLAC__StreamDecoderMetadataCallback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-
-/** Signature for the error callback.
- *
- * A function pointer matching this signature must be passed to one of
- * the FLAC__stream_decoder_init_*() functions.
- * The supplied function will be called whenever an error occurs during
- * decoding.
- *
- * \note In general, FLAC__StreamDecoder functions which change the
- * state should not be called on the \a decoder while in the callback.
- *
- * \param decoder The decoder instance calling the callback.
- * \param status The error encountered by the decoder.
- * \param client_data The callee's client data set through
- * FLAC__stream_decoder_init_*().
- */
-typedef void (*FLAC__StreamDecoderErrorCallback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-/** Create a new stream decoder instance. The instance is created with
- * default settings; see the individual FLAC__stream_decoder_set_*()
- * functions for each setting's default.
- *
- * \retval FLAC__StreamDecoder*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void);
-
-/** Free a decoder instance. Deletes the object pointed to by \a decoder.
- *
- * \param decoder A pointer to an existing decoder.
- * \assert
- * \code decoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder);
-
-
-/***********************************************************************
- *
- * Public class method prototypes
- *
- ***********************************************************************/
-
-/** Set the serial number for the FLAC stream within the Ogg container.
- * The default behavior is to use the serial number of the first Ogg
- * page. Setting a serial number here will explicitly specify which
- * stream is to be decoded.
- *
- * \note
- * This does not need to be set for native FLAC decoding.
- *
- * \default \c use serial number of first page
- * \param decoder A decoder instance to set.
- * \param serial_number See above.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long serial_number);
-
-/** Set the "MD5 signature checking" flag. If \c true, the decoder will
- * compute the MD5 signature of the unencoded audio data while decoding
- * and compare it to the signature from the STREAMINFO block, if it
- * exists, during FLAC__stream_decoder_finish().
- *
- * MD5 signature checking will be turned off (until the next
- * FLAC__stream_decoder_reset()) if there is no signature in the
- * STREAMINFO block or when a seek is attempted.
- *
- * Clients that do not use the MD5 check should leave this off to speed
- * up decoding.
- *
- * \default \c false
- * \param decoder A decoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value);
-
-/** Direct the decoder to pass on all metadata blocks of type \a type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param type See above.
- * \assert
- * \code decoder != NULL \endcode
- * \a type is valid
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
-
-/** Direct the decoder to pass on all APPLICATION metadata blocks of the
- * given \a id.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param id See above.
- * \assert
- * \code decoder != NULL \endcode
- * \code id != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
-
-/** Direct the decoder to pass on all metadata blocks of any type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder);
-
-/** Direct the decoder to filter out all metadata blocks of type \a type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param type See above.
- * \assert
- * \code decoder != NULL \endcode
- * \a type is valid
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
-
-/** Direct the decoder to filter out all APPLICATION metadata blocks of
- * the given \a id.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \param id See above.
- * \assert
- * \code decoder != NULL \endcode
- * \code id != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
-
-/** Direct the decoder to filter out all metadata blocks of any type.
- *
- * \default By default, only the \c STREAMINFO block is returned via the
- * metadata callback.
- * \param decoder A decoder instance to set.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the decoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder);
-
-/** Get the current decoder state.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderState
- * The current decoder state.
- */
-FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder);
-
-/** Get the current decoder state as a C string.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval const char *
- * The decoder state as a C string. Do not modify the contents.
- */
-FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder);
-
-/** Get the "MD5 signature checking" flag.
- * This is the value of the setting, not whether or not the decoder is
- * currently checking the MD5 (remember, it can be turned off automatically
- * by a seek). When the decoder is reset the flag will be restored to the
- * value returned by this function.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * See above.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder);
-
-/** Get the total number of samples in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the \c STREAMINFO block. A value of \c 0 means "unknown".
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder);
-
-/** Get the current number of channels in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder);
-
-/** Get the current channel assignment in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__ChannelAssignment
- * See above.
- */
-FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder);
-
-/** Get the current sample resolution in the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder);
-
-/** Get the current sample rate in Hz of the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder);
-
-/** Get the current blocksize of the stream being decoded.
- * Will only be valid after decoding has started and will contain the
- * value from the most recently decoded frame header.
- *
- * \param decoder A decoder instance to query.
- * \assert
- * \code decoder != NULL \endcode
- * \retval unsigned
- * See above.
- */
-FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder);
-
-/** Returns the decoder's current read position within the stream.
- * The position is the byte offset from the start of the stream.
- * Bytes before this position have been fully decoded. Note that
- * there may still be undecoded bytes in the decoder's read FIFO.
- * The returned position is correct even after a seek.
- *
- * \warning This function currently only works for native FLAC,
- * not Ogg FLAC streams.
- *
- * \param decoder A decoder instance to query.
- * \param position Address at which to return the desired position.
- * \assert
- * \code decoder != NULL \endcode
- * \code position != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, \c false if the stream is not native FLAC,
- * or there was an error from the 'tell' callback or it returned
- * \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position);
-
-/** Initialize the decoder instance to decode native FLAC streams.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * native FLAC stream. I/O is performed via callbacks to the client.
- * For decoding from a plain file via filename or open FILE*,
- * FLAC__stream_decoder_init_file() and FLAC__stream_decoder_init_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param read_callback See FLAC__StreamDecoderReadCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamDecoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is not \c NULL then a
- * \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param tell_callback See FLAC__StreamDecoderTellCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param length_callback See FLAC__StreamDecoderLengthCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a length_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param eof_callback See FLAC__StreamDecoderEofCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a eof_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c false
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC streams.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * FLAC stream in an Ogg container. I/O is performed via callbacks to the
- * client. For decoding from a plain file via filename or open FILE*,
- * FLAC__stream_decoder_init_ogg_file() and FLAC__stream_decoder_init_ogg_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param read_callback See FLAC__StreamDecoderReadCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamDecoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is not \c NULL then a
- * \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param tell_callback See FLAC__StreamDecoderTellCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param length_callback See FLAC__StreamDecoderLengthCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a length_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param eof_callback See FLAC__StreamDecoderEofCallback. This
- * pointer may be \c NULL if not supported by the client. If
- * \a seek_callback is not \c NULL then a
- * \a eof_callback must also be supplied.
- * Alternatively, a dummy length callback that just
- * returns \c false
- * may also be supplied, all though this is slightly
- * less efficient for the decoder.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode native FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * plain native FLAC file. For non-stdio streams, you must use
- * FLAC__stream_decoder_init_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param file An open FLAC file. The file should have been
- * opened with mode \c "rb" and rewound. The file
- * becomes owned by the decoder and should not be
- * manipulated by the client while decoding.
- * Unless \a file is \c stdin, it will be closed
- * when FLAC__stream_decoder_finish() is called.
- * Note however that seeking will not work when
- * decoding from \c stdout since it is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a
- * plain Ogg FLAC file. For non-stdio streams, you must use
- * FLAC__stream_decoder_init_ogg_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param file An open FLAC file. The file should have been
- * opened with mode \c "rb" and rewound. The file
- * becomes owned by the decoder and should not be
- * manipulated by the client while decoding.
- * Unless \a file is \c stdin, it will be closed
- * when FLAC__stream_decoder_finish() is called.
- * Note however that seeking will not work when
- * decoding from \c stdout since it is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode native FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a plain
- * native FLAC file. If POSIX fopen() semantics are not sufficient, (for
- * example, with Unicode filenames on Windows), you must use
- * FLAC__stream_decoder_init_FILE(), or FLAC__stream_decoder_init_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \param decoder An uninitialized decoder instance.
- * \param filename The name of the file to decode from. The file will
- * be opened with fopen(). Use \c NULL to decode from
- * \c stdin. Note that \c stdin is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Initialize the decoder instance to decode Ogg FLAC files.
- *
- * This flavor of initialization sets up the decoder to decode from a plain
- * Ogg FLAC file. If POSIX fopen() semantics are not sufficient, (for
- * example, with Unicode filenames on Windows), you must use
- * FLAC__stream_decoder_init_ogg_FILE(), or FLAC__stream_decoder_init_ogg_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_decoder_new() and
- * FLAC__stream_decoder_set_*() but before any of the
- * FLAC__stream_decoder_process_*() functions. Will set and return the
- * decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
- * if initialization succeeded.
- *
- * \note Support for Ogg FLAC in the library is optional. If this
- * library has been built without support for Ogg FLAC, this function
- * will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
- *
- * \param decoder An uninitialized decoder instance.
- * \param filename The name of the file to decode from. The file will
- * be opened with fopen(). Use \c NULL to decode from
- * \c stdin. Note that \c stdin is not seekable.
- * \param write_callback See FLAC__StreamDecoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param metadata_callback See FLAC__StreamDecoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param error_callback See FLAC__StreamDecoderErrorCallback. This
- * pointer must not be \c NULL.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__StreamDecoderInitStatus
- * \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamDecoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-);
-
-/** Finish the decoding process.
- * Flushes the decoding buffer, releases resources, resets the decoder
- * settings to their defaults, and returns the decoder state to
- * FLAC__STREAM_DECODER_UNINITIALIZED.
- *
- * In the event of a prematurely-terminated decode, it is not strictly
- * necessary to call this immediately before FLAC__stream_decoder_delete()
- * but it is good practice to match every FLAC__stream_decoder_init_*()
- * with a FLAC__stream_decoder_finish().
- *
- * \param decoder An uninitialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if MD5 checking is on AND a STREAMINFO block was available
- * AND the MD5 signature in the STREAMINFO block was non-zero AND the
- * signature does not match the one computed by the decoder; else
- * \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder);
-
-/** Flush the stream input.
- * The decoder's input buffer will be cleared and the state set to
- * \c FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC. This will also turn
- * off MD5 checking.
- *
- * \param decoder A decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false if a memory allocation
- * error occurs (in which case the state will be set to
- * \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR).
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder);
-
-/** Reset the decoding process.
- * The decoder's input buffer will be cleared and the state set to
- * \c FLAC__STREAM_DECODER_SEARCH_FOR_METADATA. This is similar to
- * FLAC__stream_decoder_finish() except that the settings are
- * preserved; there is no need to call FLAC__stream_decoder_init_*()
- * before decoding again. MD5 checking will be restored to its original
- * setting.
- *
- * If the decoder is seekable, or was initialized with
- * FLAC__stream_decoder_init*_FILE() or FLAC__stream_decoder_init*_file(),
- * the decoder will also attempt to seek to the beginning of the file.
- * If this rewind fails, this function will return \c false. It follows
- * that FLAC__stream_decoder_reset() cannot be used when decoding from
- * \c stdin.
- *
- * If the decoder was initialized with FLAC__stream_encoder_init*_stream()
- * and is not seekable (i.e. no seek callback was provided or the seek
- * callback returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED), it
- * is the duty of the client to start feeding data from the beginning of
- * the stream on the next FLAC__stream_decoder_process() or
- * FLAC__stream_decoder_process_interleaved() call.
- *
- * \param decoder A decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false if a memory allocation occurs
- * (in which case the state will be set to
- * \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR) or a seek error
- * occurs (the state will be unchanged).
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder);
-
-/** Decode one metadata block or audio frame.
- * This version instructs the decoder to decode a either a single metadata
- * block or a single frame and stop, unless the callbacks return a fatal
- * error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * As the decoder needs more input it will call the read callback.
- * Depending on what was decoded, the metadata or write callback will be
- * called with the decoded metadata block or audio frame.
- *
- * Unless there is a fatal read error or end of stream, this function
- * will return once one whole frame is decoded. In other words, if the
- * stream is not synchronized or points to a corrupt frame header, the
- * decoder will continue to try and resync until it gets to a valid
- * frame, then decode one frame, then return. If the decoder points to
- * a frame whose frame CRC in the frame footer does not match the
- * computed frame CRC, this function will issue a
- * FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH error to the
- * error callback, and return, having decoded one complete, although
- * corrupt, frame. (Such corrupted frames are sent as silence of the
- * correct length to the write callback.)
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder);
-
-/** Decode until the end of the metadata.
- * This version instructs the decoder to decode from the current position
- * and continue until all the metadata has been read, or until the
- * callbacks return a fatal error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * As the decoder needs more input it will call the read callback.
- * As each metadata block is decoded, the metadata callback will be called
- * with the decoded metadata.
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder);
-
-/** Decode until the end of the stream.
- * This version instructs the decoder to decode from the current position
- * and continue until the end of stream (the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM), or until the
- * callbacks return a fatal error.
- *
- * As the decoder needs more input it will call the read callback.
- * As each metadata block and frame is decoded, the metadata or write
- * callback will be called with the decoded metadata or frame.
- *
- * \param decoder An initialized decoder instance.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder);
-
-/** Skip one audio frame.
- * This version instructs the decoder to 'skip' a single frame and stop,
- * unless the callbacks return a fatal error or the read callback returns
- * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
- *
- * The decoding flow is the same as what occurs when
- * FLAC__stream_decoder_process_single() is called to process an audio
- * frame, except that this function does not decode the parsed data into
- * PCM or call the write callback. The integrity of the frame is still
- * checked the same way as in the other process functions.
- *
- * This function will return once one whole frame is skipped, in the
- * same way that FLAC__stream_decoder_process_single() will return once
- * one whole frame is decoded.
- *
- * This function can be used in more quickly determining FLAC frame
- * boundaries when decoding of the actual data is not needed, for
- * example when an application is separating a FLAC stream into frames
- * for editing or storing in a container. To do this, the application
- * can use FLAC__stream_decoder_skip_single_frame() to quickly advance
- * to the next frame, then use
- * FLAC__stream_decoder_get_decode_position() to find the new frame
- * boundary.
- *
- * This function should only be called when the stream has advanced
- * past all the metadata, otherwise it will return \c false.
- *
- * \param decoder An initialized decoder instance not in a metadata
- * state.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if any fatal read, write, or memory allocation error
- * occurred (meaning decoding must stop), or if the decoder
- * is in the FLAC__STREAM_DECODER_SEARCH_FOR_METADATA or
- * FLAC__STREAM_DECODER_READ_METADATA state, else \c true; for more
- * information about the decoder, check the decoder state with
- * FLAC__stream_decoder_get_state().
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder);
-
-/** Flush the input and seek to an absolute sample.
- * Decoding will resume at the given sample. Note that because of
- * this, the next write callback may contain a partial block. The
- * client must support seeking the input or this function will fail
- * and return \c false. Furthermore, if the decoder state is
- * \c FLAC__STREAM_DECODER_SEEK_ERROR, then the decoder must be flushed
- * with FLAC__stream_decoder_flush() or reset with
- * FLAC__stream_decoder_reset() before decoding can continue.
- *
- * \param decoder A decoder instance.
- * \param sample The target sample number to seek to.
- * \assert
- * \code decoder != NULL \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false.
- */
-FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__STREAM_ENCODER_H
-#define FLAC__STREAM_ENCODER_H
-
-#include <stdio.h> /* for FILE */
-#include "export.h"
-#include "format.h"
-#include "stream_decoder.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/** \file include/FLAC/stream_encoder.h
- *
- * \brief
- * This module contains the functions which implement the stream
- * encoder.
- *
- * See the detailed documentation in the
- * \link flac_stream_encoder stream encoder \endlink module.
- */
-
-/** \defgroup flac_encoder FLAC/ \*_encoder.h: encoder interfaces
- * \ingroup flac
- *
- * \brief
- * This module describes the encoder layers provided by libFLAC.
- *
- * The stream encoder can be used to encode complete streams either to the
- * client via callbacks, or directly to a file, depending on how it is
- * initialized. When encoding via callbacks, the client provides a write
- * callback which will be called whenever FLAC data is ready to be written.
- * If the client also supplies a seek callback, the encoder will also
- * automatically handle the writing back of metadata discovered while
- * encoding, like stream info, seek points offsets, etc. When encoding to
- * a file, the client needs only supply a filename or open \c FILE* and an
- * optional progress callback for periodic notification of progress; the
- * write and seek callbacks are supplied internally. For more info see the
- * \link flac_stream_encoder stream encoder \endlink module.
- */
-
-/** \defgroup flac_stream_encoder FLAC/stream_encoder.h: stream encoder interface
- * \ingroup flac_encoder
- *
- * \brief
- * This module contains the functions which implement the stream
- * encoder.
- *
- * The stream encoder can encode to native FLAC, and optionally Ogg FLAC
- * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
- *
- * The basic usage of this encoder is as follows:
- * - The program creates an instance of an encoder using
- * FLAC__stream_encoder_new().
- * - The program overrides the default settings using
- * FLAC__stream_encoder_set_*() functions. At a minimum, the following
- * functions should be called:
- * - FLAC__stream_encoder_set_channels()
- * - FLAC__stream_encoder_set_bits_per_sample()
- * - FLAC__stream_encoder_set_sample_rate()
- * - FLAC__stream_encoder_set_ogg_serial_number() (if encoding to Ogg FLAC)
- * - FLAC__stream_encoder_set_total_samples_estimate() (if known)
- * - If the application wants to control the compression level or set its own
- * metadata, then the following should also be called:
- * - FLAC__stream_encoder_set_compression_level()
- * - FLAC__stream_encoder_set_verify()
- * - FLAC__stream_encoder_set_metadata()
- * - The rest of the set functions should only be called if the client needs
- * exact control over how the audio is compressed; thorough understanding
- * of the FLAC format is necessary to achieve good results.
- * - The program initializes the instance to validate the settings and
- * prepare for encoding using
- * - FLAC__stream_encoder_init_stream() or FLAC__stream_encoder_init_FILE()
- * or FLAC__stream_encoder_init_file() for native FLAC
- * - FLAC__stream_encoder_init_ogg_stream() or FLAC__stream_encoder_init_ogg_FILE()
- * or FLAC__stream_encoder_init_ogg_file() for Ogg FLAC
- * - The program calls FLAC__stream_encoder_process() or
- * FLAC__stream_encoder_process_interleaved() to encode data, which
- * subsequently calls the callbacks when there is encoder data ready
- * to be written.
- * - The program finishes the encoding with FLAC__stream_encoder_finish(),
- * which causes the encoder to encode any data still in its input pipe,
- * update the metadata with the final encoding statistics if output
- * seeking is possible, and finally reset the encoder to the
- * uninitialized state.
- * - The instance may be used again or deleted with
- * FLAC__stream_encoder_delete().
- *
- * In more detail, the stream encoder functions similarly to the
- * \link flac_stream_decoder stream decoder \endlink, but has fewer
- * callbacks and more options. Typically the client will create a new
- * instance by calling FLAC__stream_encoder_new(), then set the necessary
- * parameters with FLAC__stream_encoder_set_*(), and initialize it by
- * calling one of the FLAC__stream_encoder_init_*() functions.
- *
- * Unlike the decoders, the stream encoder has many options that can
- * affect the speed and compression ratio. When setting these parameters
- * you should have some basic knowledge of the format (see the
- * <A HREF="../documentation_format_overview.html">user-level documentation</A>
- * or the <A HREF="../format.html">formal description</A>). The
- * FLAC__stream_encoder_set_*() functions themselves do not validate the
- * values as many are interdependent. The FLAC__stream_encoder_init_*()
- * functions will do this, so make sure to pay attention to the state
- * returned by FLAC__stream_encoder_init_*() to make sure that it is
- * FLAC__STREAM_ENCODER_INIT_STATUS_OK. Any parameters that are not set
- * before FLAC__stream_encoder_init_*() will take on the defaults from
- * the constructor.
- *
- * There are three initialization functions for native FLAC, one for
- * setting up the encoder to encode FLAC data to the client via
- * callbacks, and two for encoding directly to a file.
- *
- * For encoding via callbacks, use FLAC__stream_encoder_init_stream().
- * You must also supply a write callback which will be called anytime
- * there is raw encoded data to write. If the client can seek the output
- * it is best to also supply seek and tell callbacks, as this allows the
- * encoder to go back after encoding is finished to write back
- * information that was collected while encoding, like seek point offsets,
- * frame sizes, etc.
- *
- * For encoding directly to a file, use FLAC__stream_encoder_init_FILE()
- * or FLAC__stream_encoder_init_file(). Then you must only supply a
- * filename or open \c FILE*; the encoder will handle all the callbacks
- * internally. You may also supply a progress callback for periodic
- * notification of the encoding progress.
- *
- * There are three similarly-named init functions for encoding to Ogg
- * FLAC streams. Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
- * library has been built with Ogg support.
- *
- * The call to FLAC__stream_encoder_init_*() currently will also immediately
- * call the write callback several times, once with the \c fLaC signature,
- * and once for each encoded metadata block. Note that for Ogg FLAC
- * encoding you will usually get at least twice the number of callbacks than
- * with native FLAC, one for the Ogg page header and one for the page body.
- *
- * After initializing the instance, the client may feed audio data to the
- * encoder in one of two ways:
- *
- * - Channel separate, through FLAC__stream_encoder_process() - The client
- * will pass an array of pointers to buffers, one for each channel, to
- * the encoder, each of the same length. The samples need not be
- * block-aligned, but each channel should have the same number of samples.
- * - Channel interleaved, through
- * FLAC__stream_encoder_process_interleaved() - The client will pass a single
- * pointer to data that is channel-interleaved (i.e. channel0_sample0,
- * channel1_sample0, ... , channelN_sample0, channel0_sample1, ...).
- * Again, the samples need not be block-aligned but they must be
- * sample-aligned, i.e. the first value should be channel0_sample0 and
- * the last value channelN_sampleM.
- *
- * Note that for either process call, each sample in the buffers should be a
- * signed integer, right-justified to the resolution set by
- * FLAC__stream_encoder_set_bits_per_sample(). For example, if the resolution
- * is 16 bits per sample, the samples should all be in the range [-32768,32767].
- *
- * When the client is finished encoding data, it calls
- * FLAC__stream_encoder_finish(), which causes the encoder to encode any
- * data still in its input pipe, and call the metadata callback with the
- * final encoding statistics. Then the instance may be deleted with
- * FLAC__stream_encoder_delete() or initialized again to encode another
- * stream.
- *
- * For programs that write their own metadata, but that do not know the
- * actual metadata until after encoding, it is advantageous to instruct
- * the encoder to write a PADDING block of the correct size, so that
- * instead of rewriting the whole stream after encoding, the program can
- * just overwrite the PADDING block. If only the maximum size of the
- * metadata is known, the program can write a slightly larger padding
- * block, then split it after encoding.
- *
- * Make sure you understand how lengths are calculated. All FLAC metadata
- * blocks have a 4 byte header which contains the type and length. This
- * length does not include the 4 bytes of the header. See the format page
- * for the specification of metadata blocks and their lengths.
- *
- * \note
- * If you are writing the FLAC data to a file via callbacks, make sure it
- * is open for update (e.g. mode "w+" for stdio streams). This is because
- * after the first encoding pass, the encoder will try to seek back to the
- * beginning of the stream, to the STREAMINFO block, to write some data
- * there. (If using FLAC__stream_encoder_init*_file() or
- * FLAC__stream_encoder_init*_FILE(), the file is managed internally.)
- *
- * \note
- * The "set" functions may only be called when the encoder is in the
- * state FLAC__STREAM_ENCODER_UNINITIALIZED, i.e. after
- * FLAC__stream_encoder_new() or FLAC__stream_encoder_finish(), but
- * before FLAC__stream_encoder_init_*(). If this is the case they will
- * return \c true, otherwise \c false.
- *
- * \note
- * FLAC__stream_encoder_finish() resets all settings to the constructor
- * defaults.
- *
- * \{
- */
-
-
-/** State values for a FLAC__StreamEncoder.
- *
- * The encoder's state can be obtained by calling FLAC__stream_encoder_get_state().
- *
- * If the encoder gets into any other state besides \c FLAC__STREAM_ENCODER_OK
- * or \c FLAC__STREAM_ENCODER_UNINITIALIZED, it becomes invalid for encoding and
- * must be deleted with FLAC__stream_encoder_delete().
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_OK = 0,
- /**< The encoder is in the normal OK state and samples can be processed. */
-
- FLAC__STREAM_ENCODER_UNINITIALIZED,
- /**< The encoder is in the uninitialized state; one of the
- * FLAC__stream_encoder_init_*() functions must be called before samples
- * can be processed.
- */
-
- FLAC__STREAM_ENCODER_OGG_ERROR,
- /**< An error occurred in the underlying Ogg layer. */
-
- FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR,
- /**< An error occurred in the underlying verify stream decoder;
- * check FLAC__stream_encoder_get_verify_decoder_state().
- */
-
- FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA,
- /**< The verify decoder detected a mismatch between the original
- * audio signal and the decoded audio signal.
- */
-
- FLAC__STREAM_ENCODER_CLIENT_ERROR,
- /**< One of the callbacks returned a fatal error. */
-
- FLAC__STREAM_ENCODER_IO_ERROR,
- /**< An I/O error occurred while opening/reading/writing a file.
- * Check \c errno.
- */
-
- FLAC__STREAM_ENCODER_FRAMING_ERROR,
- /**< An error occurred while writing the stream; usually, the
- * write_callback returned an error.
- */
-
- FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR
- /**< Memory allocation failed. */
-
-} FLAC__StreamEncoderState;
-
-/** Maps a FLAC__StreamEncoderState to a C string.
- *
- * Using a FLAC__StreamEncoderState as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderStateString[];
-
-
-/** Possible return values for the FLAC__stream_encoder_init_*() functions.
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_INIT_STATUS_OK = 0,
- /**< Initialization was successful. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR,
- /**< General failure to set up encoder; call FLAC__stream_encoder_get_state() for cause. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
- /**< The library was not compiled with support for the given container
- * format.
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS,
- /**< A required callback was not supplied. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS,
- /**< The encoder has an invalid setting for number of channels. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE,
- /**< The encoder has an invalid setting for bits-per-sample.
- * FLAC supports 4-32 bps but the reference encoder currently supports
- * only up to 24 bps.
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE,
- /**< The encoder has an invalid setting for the input sample rate. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE,
- /**< The encoder has an invalid setting for the block size. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER,
- /**< The encoder has an invalid setting for the maximum LPC order. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION,
- /**< The encoder has an invalid setting for the precision of the quantized linear predictor coefficients. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER,
- /**< The specified block size is less than the maximum LPC order. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE,
- /**< The encoder is bound to the <A HREF="../format.html#subset">Subset</A> but other settings violate it. */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA,
- /**< The metadata input to the encoder is invalid, in one of the following ways:
- * - FLAC__stream_encoder_set_metadata() was called with a null pointer but a block count > 0
- * - One of the metadata blocks contains an undefined type
- * - It contains an illegal CUESHEET as checked by FLAC__format_cuesheet_is_legal()
- * - It contains an illegal SEEKTABLE as checked by FLAC__format_seektable_is_legal()
- * - It contains more than one SEEKTABLE block or more than one VORBIS_COMMENT block
- */
-
- FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED
- /**< FLAC__stream_encoder_init_*() was called when the encoder was
- * already initialized, usually because
- * FLAC__stream_encoder_finish() was not called.
- */
-
-} FLAC__StreamEncoderInitStatus;
-
-/** Maps a FLAC__StreamEncoderInitStatus to a C string.
- *
- * Using a FLAC__StreamEncoderInitStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderInitStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder read callback.
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE,
- /**< The read was OK and decoding can continue. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM,
- /**< The read was attempted at the end of the stream. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_ABORT,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED
- /**< Client does not support reading back from the output. */
-
-} FLAC__StreamEncoderReadStatus;
-
-/** Maps a FLAC__StreamEncoderReadStatus to a C string.
- *
- * Using a FLAC__StreamEncoderReadStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderReadStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder write callback.
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_WRITE_STATUS_OK = 0,
- /**< The write was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR
- /**< An unrecoverable error occurred. The encoder will return from the process call. */
-
-} FLAC__StreamEncoderWriteStatus;
-
-/** Maps a FLAC__StreamEncoderWriteStatus to a C string.
- *
- * Using a FLAC__StreamEncoderWriteStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder seek callback.
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_SEEK_STATUS_OK,
- /**< The seek was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamEncoderSeekStatus;
-
-/** Maps a FLAC__StreamEncoderSeekStatus to a C string.
- *
- * Using a FLAC__StreamEncoderSeekStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[];
-
-
-/** Return values for the FLAC__StreamEncoder tell callback.
- */
-typedef enum {
-
- FLAC__STREAM_ENCODER_TELL_STATUS_OK,
- /**< The tell was OK and encoding can continue. */
-
- FLAC__STREAM_ENCODER_TELL_STATUS_ERROR,
- /**< An unrecoverable error occurred. */
-
- FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- /**< Client does not support seeking. */
-
-} FLAC__StreamEncoderTellStatus;
-
-/** Maps a FLAC__StreamEncoderTellStatus to a C string.
- *
- * Using a FLAC__StreamEncoderTellStatus as the index to this array
- * will give the string equivalent. The contents should not be modified.
- */
-extern FLAC_API const char * const FLAC__StreamEncoderTellStatusString[];
-
-
-/***********************************************************************
- *
- * class FLAC__StreamEncoder
- *
- ***********************************************************************/
-
-struct FLAC__StreamEncoderProtected;
-struct FLAC__StreamEncoderPrivate;
-/** The opaque structure definition for the stream encoder type.
- * See the \link flac_stream_encoder stream encoder module \endlink
- * for a detailed description.
- */
-typedef struct {
- struct FLAC__StreamEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
- struct FLAC__StreamEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
-} FLAC__StreamEncoder;
-
-/** Signature for the read callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_encoder_init_ogg_stream() if seeking is supported.
- * The supplied function will be called when the encoder needs to read back
- * encoded data. This happens during the metadata callback, when the encoder
- * has to read, modify, and rewrite the metadata (e.g. seekpoints) gathered
- * while encoding. The address of the buffer to be filled is supplied, along
- * with the number of bytes the buffer can hold. The callback may choose to
- * supply less data and modify the byte count but must be careful not to
- * overflow the buffer. The callback then returns a status code chosen from
- * FLAC__StreamEncoderReadStatus.
- *
- * Here is an example of a read callback for stdio streams:
- * \code
- * FLAC__StreamEncoderReadStatus read_cb(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(*bytes > 0) {
- * *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
- * if(ferror(file))
- * return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- * else if(*bytes == 0)
- * return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
- * else
- * return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
- * }
- * else
- * return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param buffer A pointer to a location for the callee to store
- * data to be encoded.
- * \param bytes A pointer to the size of the buffer. On entry
- * to the callback, it contains the maximum number
- * of bytes that may be stored in \a buffer. The
- * callee must set it to the actual number of bytes
- * stored (0 in case of error or end-of-stream) before
- * returning.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_set_client_data().
- * \retval FLAC__StreamEncoderReadStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderReadStatus (*FLAC__StreamEncoderReadCallback)(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/** Signature for the write callback.
- *
- * A function pointer matching this signature must be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * by the encoder anytime there is raw encoded data ready to write. It may
- * include metadata mixed with encoded audio frames and the data is not
- * guaranteed to be aligned on frame or metadata block boundaries.
- *
- * The only duty of the callback is to write out the \a bytes worth of data
- * in \a buffer to the current position in the output stream. The arguments
- * \a samples and \a current_frame are purely informational. If \a samples
- * is greater than \c 0, then \a current_frame will hold the current frame
- * number that is being written; otherwise it indicates that the write
- * callback is being called to write metadata.
- *
- * \note
- * Unlike when writing to native FLAC, when writing to Ogg FLAC the
- * write callback will be called twice when writing each audio
- * frame; once for the page header, and once for the page body.
- * When writing the page header, the \a samples argument to the
- * write callback will be \c 0.
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param buffer An array of encoded data of length \a bytes.
- * \param bytes The byte length of \a buffer.
- * \param samples The number of samples encoded by \a buffer.
- * \c 0 has a special meaning; see above.
- * \param current_frame The number of the current frame being encoded.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderWriteStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderWriteStatus (*FLAC__StreamEncoderWriteCallback)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
-
-/** Signature for the seek callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * when the encoder needs to seek the output stream. The encoder will pass
- * the absolute byte offset to seek to, 0 meaning the beginning of the stream.
- *
- * Here is an example of a seek callback for stdio streams:
- * \code
- * FLAC__StreamEncoderSeekStatus seek_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * if(file == stdin)
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
- * else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
- * else
- * return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param absolute_byte_offset The offset from the beginning of the stream
- * to seek to.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderSeekStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderSeekStatus (*FLAC__StreamEncoderSeekCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-
-/** Signature for the tell callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * when the encoder needs to know the current position of the output stream.
- *
- * \warning
- * The callback must return the true current byte offset of the output to
- * which the encoder is writing. If you are buffering the output, make
- * sure and take this into account. If you are writing directly to a
- * FILE* from your write callback, ftell() is sufficient. If you are
- * writing directly to a file descriptor from your write callback, you
- * can use lseek(fd, SEEK_CUR, 0). The encoder may later seek back to
- * these points to rewrite metadata after encoding.
- *
- * Here is an example of a tell callback for stdio streams:
- * \code
- * FLAC__StreamEncoderTellStatus tell_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
- * {
- * FILE *file = ((MyClientData*)client_data)->file;
- * off_t pos;
- * if(file == stdin)
- * return FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED;
- * else if((pos = ftello(file)) < 0)
- * return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
- * else {
- * *absolute_byte_offset = (FLAC__uint64)pos;
- * return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
- * }
- * }
- * \endcode
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param absolute_byte_offset The address at which to store the current
- * position of the output.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- * \retval FLAC__StreamEncoderTellStatus
- * The callee's return status.
- */
-typedef FLAC__StreamEncoderTellStatus (*FLAC__StreamEncoderTellCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-
-/** Signature for the metadata callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_stream(). The supplied function will be called
- * once at the end of encoding with the populated STREAMINFO structure. This
- * is so the client can seek back to the beginning of the file and write the
- * STREAMINFO block with the correct statistics after encoding (like
- * minimum/maximum frame size and total samples).
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param metadata The final populated STREAMINFO block.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- */
-typedef void (*FLAC__StreamEncoderMetadataCallback)(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
-
-/** Signature for the progress callback.
- *
- * A function pointer matching this signature may be passed to
- * FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE().
- * The supplied function will be called when the encoder has finished
- * writing a frame. The \c total_frames_estimate argument to the
- * callback will be based on the value from
- * FLAC__stream_encoder_set_total_samples_estimate().
- *
- * \note In general, FLAC__StreamEncoder functions which change the
- * state should not be called on the \a encoder while in the callback.
- *
- * \param encoder The encoder instance calling the callback.
- * \param bytes_written Bytes written so far.
- * \param samples_written Samples written so far.
- * \param frames_written Frames written so far.
- * \param total_frames_estimate The estimate of the total number of
- * frames to be written.
- * \param client_data The callee's client data set through
- * FLAC__stream_encoder_init_*().
- */
-typedef void (*FLAC__StreamEncoderProgressCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data);
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-/** Create a new stream encoder instance. The instance is created with
- * default settings; see the individual FLAC__stream_encoder_set_*()
- * functions for each setting's default.
- *
- * \retval FLAC__StreamEncoder*
- * \c NULL if there was an error allocating memory, else the new instance.
- */
-FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void);
-
-/** Free an encoder instance. Deletes the object pointed to by \a encoder.
- *
- * \param encoder A pointer to an existing encoder.
- * \assert
- * \code encoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder);
-
-
-/***********************************************************************
- *
- * Public class method prototypes
- *
- ***********************************************************************/
-
-/** Set the serial number for the FLAC stream to use in the Ogg container.
- *
- * \note
- * This does not need to be set for native FLAC encoding.
- *
- * \note
- * It is recommended to set a serial number explicitly as the default of '0'
- * may collide with other streams.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param serial_number See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long serial_number);
-
-/** Set the "verify" flag. If \c true, the encoder will verify it's own
- * encoded output by feeding it through an internal decoder and comparing
- * the original signal against the decoded signal. If a mismatch occurs,
- * the process call will return \c false. Note that this will slow the
- * encoding process by the extra time required for decoding and comparison.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the <A HREF="../format.html#subset">Subset</A> flag. If \c true,
- * the encoder will comply with the Subset and will check the
- * settings during FLAC__stream_encoder_init_*() to see if all settings
- * comply. If \c false, the settings may take advantage of the full
- * range that the format allows.
- *
- * Make sure you know what it entails before setting this to \c false.
- *
- * \default \c true
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the number of channels to be encoded.
- *
- * \default \c 2
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the sample resolution of the input to be encoded.
- *
- * \warning
- * Do not feed the encoder data that is wider than the value you
- * set here or you will generate an invalid stream.
- *
- * \default \c 16
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the sample rate (in Hz) of the input to be encoded.
- *
- * \default \c 44100
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the compression level
- *
- * The compression level is roughly proportional to the amount of effort
- * the encoder expends to compress the file. A higher level usually
- * means more computation but higher compression. The default level is
- * suitable for most applications.
- *
- * Currently the levels range from \c 0 (fastest, least compression) to
- * \c 8 (slowest, most compression). A value larger than \c 8 will be
- * treated as \c 8.
- *
- * This function automatically calls the following other \c _set_
- * functions with appropriate values, so the client does not need to
- * unless it specifically wants to override them:
- * - FLAC__stream_encoder_set_do_mid_side_stereo()
- * - FLAC__stream_encoder_set_loose_mid_side_stereo()
- * - FLAC__stream_encoder_set_apodization()
- * - FLAC__stream_encoder_set_max_lpc_order()
- * - FLAC__stream_encoder_set_qlp_coeff_precision()
- * - FLAC__stream_encoder_set_do_qlp_coeff_prec_search()
- * - FLAC__stream_encoder_set_do_escape_coding()
- * - FLAC__stream_encoder_set_do_exhaustive_model_search()
- * - FLAC__stream_encoder_set_min_residual_partition_order()
- * - FLAC__stream_encoder_set_max_residual_partition_order()
- * - FLAC__stream_encoder_set_rice_parameter_search_dist()
- *
- * The actual values set for each level are:
- * <table>
- * <tr>
- * <td><b>level</b></td>
- * <td>do mid-side stereo</td>
- * <td>loose mid-side stereo</td>
- * <td>apodization</td>
- * <td>max lpc order</td>
- * <td>qlp coeff precision</td>
- * <td>qlp coeff prec search</td>
- * <td>escape coding</td>
- * <td>exhaustive model search</td>
- * <td>min residual partition order</td>
- * <td>max residual partition order</td>
- * <td>rice parameter search dist</td>
- * </tr>
- * <tr> <td><b>0</b></td> <td>false</td> <td>false</td> <td>tukey(0.5)<td> <td>0</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
- * <tr> <td><b>1</b></td> <td>true</td> <td>true</td> <td>tukey(0.5)<td> <td>0</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
- * <tr> <td><b>2</b></td> <td>true</td> <td>false</td> <td>tukey(0.5)<td> <td>0</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
- * <tr> <td><b>3</b></td> <td>false</td> <td>false</td> <td>tukey(0.5)<td> <td>6</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>4</td> <td>0</td> </tr>
- * <tr> <td><b>4</b></td> <td>true</td> <td>true</td> <td>tukey(0.5)<td> <td>8</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>4</td> <td>0</td> </tr>
- * <tr> <td><b>5</b></td> <td>true</td> <td>false</td> <td>tukey(0.5)<td> <td>8</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>5</td> <td>0</td> </tr>
- * <tr> <td><b>6</b></td> <td>true</td> <td>false</td> <td>tukey(0.5);partial_tukey(2)<td> <td>8</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
- * <tr> <td><b>7</b></td> <td>true</td> <td>false</td> <td>tukey(0.5);partial_tukey(2)<td> <td>12</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
- * <tr> <td><b>8</b></td> <td>true</td> <td>false</td> <td>tukey(0.5);partial_tukey(2);punchout_tukey(3)</td> <td>12</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
- * </table>
- *
- * \default \c 5
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the blocksize to use while encoding.
- *
- * The number of samples to use per frame. Use \c 0 to let the encoder
- * estimate a blocksize; this is usually best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set to \c true to enable mid-side encoding on stereo input. The
- * number of channels must be 2 for this to have any effect. Set to
- * \c false to use only independent channel coding.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set to \c true to enable adaptive switching between mid-side and
- * left-right encoding on stereo input. Set to \c false to use
- * exhaustive searching. Setting this to \c true requires
- * FLAC__stream_encoder_set_do_mid_side_stereo() to also be set to
- * \c true in order to have any effect.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value Flag value (see above).
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Sets the apodization function(s) the encoder will use when windowing
- * audio data for LPC analysis.
- *
- * The \a specification is a plain ASCII string which specifies exactly
- * which functions to use. There may be more than one (up to 32),
- * separated by \c ';' characters. Some functions take one or more
- * comma-separated arguments in parentheses.
- *
- * The available functions are \c bartlett, \c bartlett_hann,
- * \c blackman, \c blackman_harris_4term_92db, \c connes, \c flattop,
- * \c gauss(STDDEV), \c hamming, \c hann, \c kaiser_bessel, \c nuttall,
- * \c rectangle, \c triangle, \c tukey(P), \c partial_tukey(n[/ov[/P]]),
- * \c punchout_tukey(n[/ov[/P]]), \c welch.
- *
- * For \c gauss(STDDEV), STDDEV specifies the standard deviation
- * (0<STDDEV<=0.5).
- *
- * For \c tukey(P), P specifies the fraction of the window that is
- * tapered (0<=P<=1). P=0 corresponds to \c rectangle and P=1
- * corresponds to \c hann.
- *
- * Specifying \c partial_tukey or \c punchout_tukey works a little
- * different. These do not specify a single apodization function, but
- * a series of them with some overlap. partial_tukey specifies a series
- * of small windows (all treated separately) while punchout_tukey
- * specifies a series of windows that have a hole in them. In this way,
- * the predictor is constructed with only a part of the block, which
- * helps in case a block consists of dissimilar parts.
- *
- * The three parameters that can be specified for the functions are
- * n, ov and P. n is the number of functions to add, ov is the overlap
- * of the windows in case of partial_tukey and the overlap in the gaps
- * in case of punchout_tukey. P is the fraction of the window that is
- * tapered, like with a regular tukey window. The function can be
- * specified with only a number, a number and an overlap, or a number
- * an overlap and a P, for example, partial_tukey(3), partial_tukey(3/0.3)
- * and partial_tukey(3/0.3/0.5) are all valid. ov should be smaller than 1
- * and can be negative.
- *
- * Example specifications are \c "blackman" or
- * \c "hann;triangle;tukey(0.5);tukey(0.25);tukey(0.125)"
- *
- * Any function that is specified erroneously is silently dropped. Up
- * to 32 functions are kept, the rest are dropped. If the specification
- * is empty the encoder defaults to \c "tukey(0.5)".
- *
- * When more than one function is specified, then for every subframe the
- * encoder will try each of them separately and choose the window that
- * results in the smallest compressed subframe.
- *
- * Note that each function specified causes the encoder to occupy a
- * floating point array in which to store the window. Also note that the
- * values of P, STDDEV and ov are locale-specific, so if the comma
- * separator specified by the locale is a comma, a comma should be used.
- *
- * \default \c "tukey(0.5)"
- * \param encoder An encoder instance to set.
- * \param specification See above.
- * \assert
- * \code encoder != NULL \endcode
- * \code specification != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification);
-
-/** Set the maximum LPC order, or \c 0 to use only the fixed predictors.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the precision, in bits, of the quantized linear predictor
- * coefficients, or \c 0 to let the encoder select it based on the
- * blocksize.
- *
- * \note
- * In the current implementation, qlp_coeff_precision + bits_per_sample must
- * be less than 32.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set to \c false to use only the specified quantized linear predictor
- * coefficient precision, or \c true to search neighboring precision
- * values and use the best one.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Deprecated. Setting this value has no effect.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set to \c false to let the encoder estimate the best model order
- * based on the residual signal energy, or \c true to force the
- * encoder to evaluate all order models and select the best.
- *
- * \default \c false
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
-
-/** Set the minimum partition order to search when coding the residual.
- * This is used in tandem with
- * FLAC__stream_encoder_set_max_residual_partition_order().
- *
- * The partition order determines the context size in the residual.
- * The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
- *
- * Set both min and max values to \c 0 to force a single context,
- * whose Rice parameter is based on the residual signal variance.
- * Otherwise, set a min and max order, and the encoder will search
- * all orders, using the mean of each context for its Rice parameter,
- * and use the best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set the maximum partition order to search when coding the residual.
- * This is used in tandem with
- * FLAC__stream_encoder_set_min_residual_partition_order().
- *
- * The partition order determines the context size in the residual.
- * The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
- *
- * Set both min and max values to \c 0 to force a single context,
- * whose Rice parameter is based on the residual signal variance.
- * Otherwise, set a min and max order, and the encoder will search
- * all orders, using the mean of each context for its Rice parameter,
- * and use the best.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Deprecated. Setting this value has no effect.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, unsigned value);
-
-/** Set an estimate of the total samples that will be encoded.
- * This is merely an estimate and may be set to \c 0 if unknown.
- * This value will be written to the STREAMINFO block before encoding,
- * and can remove the need for the caller to rewrite the value later
- * if the value is known before encoding.
- *
- * \default \c 0
- * \param encoder An encoder instance to set.
- * \param value See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value);
-
-/** Set the metadata blocks to be emitted to the stream before encoding.
- * A value of \c NULL, \c 0 implies no metadata; otherwise, supply an
- * array of pointers to metadata blocks. The array is non-const since
- * the encoder may need to change the \a is_last flag inside them, and
- * in some cases update seek point offsets. Otherwise, the encoder will
- * not modify or free the blocks. It is up to the caller to free the
- * metadata blocks after encoding finishes.
- *
- * \note
- * The encoder stores only copies of the pointers in the \a metadata array;
- * the metadata blocks themselves must survive at least until after
- * FLAC__stream_encoder_finish() returns. Do not free the blocks until then.
- *
- * \note
- * The STREAMINFO block is always written and no STREAMINFO block may
- * occur in the supplied array.
- *
- * \note
- * By default the encoder does not create a SEEKTABLE. If one is supplied
- * in the \a metadata array, but the client has specified that it does not
- * support seeking, then the SEEKTABLE will be written verbatim. However
- * by itself this is not very useful as the client will not know the stream
- * offsets for the seekpoints ahead of time. In order to get a proper
- * seektable the client must support seeking. See next note.
- *
- * \note
- * SEEKTABLE blocks are handled specially. Since you will not know
- * the values for the seek point stream offsets, you should pass in
- * a SEEKTABLE 'template', that is, a SEEKTABLE object with the
- * required sample numbers (or placeholder points), with \c 0 for the
- * \a frame_samples and \a stream_offset fields for each point. If the
- * client has specified that it supports seeking by providing a seek
- * callback to FLAC__stream_encoder_init_stream() or both seek AND read
- * callback to FLAC__stream_encoder_init_ogg_stream() (or by using
- * FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE()),
- * then while it is encoding the encoder will fill the stream offsets in
- * for you and when encoding is finished, it will seek back and write the
- * real values into the SEEKTABLE block in the stream. There are helper
- * routines for manipulating seektable template blocks; see metadata.h:
- * FLAC__metadata_object_seektable_template_*(). If the client does
- * not support seeking, the SEEKTABLE will have inaccurate offsets which
- * will slow down or remove the ability to seek in the FLAC stream.
- *
- * \note
- * The encoder instance \b will modify the first \c SEEKTABLE block
- * as it transforms the template to a valid seektable while encoding,
- * but it is still up to the caller to free all metadata blocks after
- * encoding.
- *
- * \note
- * A VORBIS_COMMENT block may be supplied. The vendor string in it
- * will be ignored. libFLAC will use it's own vendor string. libFLAC
- * will not modify the passed-in VORBIS_COMMENT's vendor string, it
- * will simply write it's own into the stream. If no VORBIS_COMMENT
- * block is present in the \a metadata array, libFLAC will write an
- * empty one, containing only the vendor string.
- *
- * \note The Ogg FLAC mapping requires that the VORBIS_COMMENT block be
- * the second metadata block of the stream. The encoder already supplies
- * the STREAMINFO block automatically. If \a metadata does not contain a
- * VORBIS_COMMENT block, the encoder will supply that too. Otherwise, if
- * \a metadata does contain a VORBIS_COMMENT block and it is not the
- * first, the init function will reorder \a metadata by moving the
- * VORBIS_COMMENT block to the front; the relative ordering of the other
- * blocks will remain as they were.
- *
- * \note The Ogg FLAC mapping limits the number of metadata blocks per
- * stream to \c 65535. If \a num_blocks exceeds this the function will
- * return \c false.
- *
- * \default \c NULL, 0
- * \param encoder An encoder instance to set.
- * \param metadata See above.
- * \param num_blocks See above.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * \c false if the encoder is already initialized, else \c true.
- * \c false if the encoder is already initialized, or if
- * \a num_blocks > 65535 if encoding to Ogg FLAC, else \c true.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks);
-
-/** Get the current encoder state.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderState
- * The current encoder state.
- */
-FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder);
-
-/** Get the state of the verify stream decoder.
- * Useful when the stream encoder state is
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamDecoderState
- * The verify stream decoder state.
- */
-FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder);
-
-/** Get the current encoder state as a C string.
- * This version automatically resolves
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR by getting the
- * verify decoder's state.
- *
- * \param encoder A encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval const char *
- * The encoder state as a C string. Do not modify the contents.
- */
-FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder);
-
-/** Get relevant values about the nature of a verify decoder error.
- * Useful when the stream encoder state is
- * \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR. The arguments should
- * be addresses in which the stats will be returned, or NULL if value
- * is not desired.
- *
- * \param encoder An encoder instance to query.
- * \param absolute_sample The absolute sample number of the mismatch.
- * \param frame_number The number of the frame in which the mismatch occurred.
- * \param channel The channel in which the mismatch occurred.
- * \param sample The number of the sample (relative to the frame) in
- * which the mismatch occurred.
- * \param expected The expected value for the sample in question.
- * \param got The actual value returned by the decoder.
- * \assert
- * \code encoder != NULL \endcode
- */
-FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got);
-
-/** Get the "verify" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_verify().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder);
-
-/** Get the <A HREF="../format.html#subset>Subset</A> flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_streamable_subset().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder);
-
-/** Get the number of input channels being processed.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_channels().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder);
-
-/** Get the input sample resolution setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_bits_per_sample().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder);
-
-/** Get the input sample rate setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_sample_rate().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder);
-
-/** Get the blocksize setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_blocksize().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder);
-
-/** Get the "mid/side stereo coding" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_get_do_mid_side_stereo().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder);
-
-/** Get the "adaptive mid/side switching" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_loose_mid_side_stereo().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder);
-
-/** Get the maximum LPC order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_max_lpc_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder);
-
-/** Get the quantized linear predictor coefficient precision setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_qlp_coeff_precision().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder);
-
-/** Get the qlp coefficient precision search flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_qlp_coeff_prec_search().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder);
-
-/** Get the "escape coding" flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_escape_coding().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder);
-
-/** Get the exhaustive model search flag.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__bool
- * See FLAC__stream_encoder_set_do_exhaustive_model_search().
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder);
-
-/** Get the minimum residual partition order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_min_residual_partition_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder);
-
-/** Get maximum residual partition order setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_max_residual_partition_order().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder);
-
-/** Get the Rice parameter search distance setting.
- *
- * \param encoder An encoder instance to query.
- * \assert
- * \code encoder != NULL \endcode
- * \retval unsigned
- * See FLAC__stream_encoder_set_rice_parameter_search_dist().
- */
-FLAC_API unsigned FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder);
-
-/** Get the previously set estimate of the total samples to be encoded.
- * The encoder merely mimics back the value given to
- * FLAC__stream_encoder_set_total_samples_estimate() since it has no
- * other way of knowing how many samples the client will encode.
- *
- * \param encoder An encoder instance to set.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__uint64
- * See FLAC__stream_encoder_get_total_samples_estimate().
- */
-FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder);
-
-/** Initialize the encoder instance to encode native FLAC streams.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * native FLAC stream. I/O is performed via callbacks to the client.
- * For encoding to a plain file via filename or open \c FILE*,
- * FLAC__stream_encoder_init_file() and FLAC__stream_encoder_init_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * The call to FLAC__stream_encoder_init_stream() currently will also
- * immediately call the write callback several times, once with the \c fLaC
- * signature, and once for each encoded metadata block.
- *
- * \param encoder An uninitialized encoder instance.
- * \param write_callback See FLAC__StreamEncoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamEncoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. The encoder uses seeking to go back
- * and write some some stream statistics to the
- * STREAMINFO block; this is recommended but not
- * necessary to create a valid FLAC stream. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param tell_callback See FLAC__StreamEncoderTellCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is \c NULL then
- * this argument will be ignored. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param metadata_callback See FLAC__StreamEncoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired. If the client provides a seek callback,
- * this function is not necessary as the encoder
- * will automatically seek back and update the
- * STREAMINFO block. It may also be \c NULL if the
- * client does not support seeking, since it will
- * have no way of going back to update the
- * STREAMINFO. However the client can still supply
- * a callback if it would like to know the details
- * from the STREAMINFO.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC streams.
- *
- * This flavor of initialization sets up the encoder to encode to a FLAC
- * stream in an Ogg container. I/O is performed via callbacks to the
- * client. For encoding to a plain file via filename or open \c FILE*,
- * FLAC__stream_encoder_init_ogg_file() and FLAC__stream_encoder_init_ogg_FILE()
- * provide a simpler interface.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * The call to FLAC__stream_encoder_init_ogg_stream() currently will also
- * immediately call the write callback several times to write the metadata
- * packets.
- *
- * \param encoder An uninitialized encoder instance.
- * \param read_callback See FLAC__StreamEncoderReadCallback. This
- * pointer must not be \c NULL if \a seek_callback
- * is non-NULL since they are both needed to be
- * able to write data back to the Ogg FLAC stream
- * in the post-encode phase.
- * \param write_callback See FLAC__StreamEncoderWriteCallback. This
- * pointer must not be \c NULL.
- * \param seek_callback See FLAC__StreamEncoderSeekCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. The encoder uses seeking to go back
- * and write some some stream statistics to the
- * STREAMINFO block; this is recommended but not
- * necessary to create a valid FLAC stream. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy seek callback that just
- * returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param tell_callback See FLAC__StreamEncoderTellCallback. This
- * pointer may be \c NULL if seeking is not
- * supported. If \a seek_callback is \c NULL then
- * this argument will be ignored. If
- * \a seek_callback is not \c NULL then a
- * \a tell_callback must also be supplied.
- * Alternatively, a dummy tell callback that just
- * returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
- * may also be supplied, all though this is slightly
- * less efficient for the encoder.
- * \param metadata_callback See FLAC__StreamEncoderMetadataCallback. This
- * pointer may be \c NULL if the callback is not
- * desired. If the client provides a seek callback,
- * this function is not necessary as the encoder
- * will automatically seek back and update the
- * STREAMINFO block. It may also be \c NULL if the
- * client does not support seeking, since it will
- * have no way of going back to update the
- * STREAMINFO. However the client can still supply
- * a callback if it would like to know the details
- * from the STREAMINFO.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderReadCallback read_callback, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
-
-/** Initialize the encoder instance to encode native FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * plain native FLAC file. For non-stdio streams, you must use
- * FLAC__stream_encoder_init_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param file An open file. The file should have been opened
- * with mode \c "w+b" and rewound. The file
- * becomes owned by the encoder and should not be
- * manipulated by the client while encoding.
- * Unless \a file is \c stdout, it will be closed
- * when FLAC__stream_encoder_finish() is called.
- * Note however that a proper SEEKTABLE cannot be
- * created when encoding to \c stdout since it is
- * not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a
- * plain Ogg FLAC file. For non-stdio streams, you must use
- * FLAC__stream_encoder_init_ogg_stream() and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param file An open file. The file should have been opened
- * with mode \c "w+b" and rewound. The file
- * becomes owned by the encoder and should not be
- * manipulated by the client while encoding.
- * Unless \a file is \c stdout, it will be closed
- * when FLAC__stream_encoder_finish() is called.
- * Note however that a proper SEEKTABLE cannot be
- * created when encoding to \c stdout since it is
- * not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \code file != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode native FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a plain
- * FLAC file. If POSIX fopen() semantics are not sufficient (for example,
- * with Unicode filenames on Windows), you must use
- * FLAC__stream_encoder_init_FILE(), or FLAC__stream_encoder_init_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param filename The name of the file to encode to. The file will
- * be opened with fopen(). Use \c NULL to encode to
- * \c stdout. Note however that a proper SEEKTABLE
- * cannot be created when encoding to \c stdout since
- * it is not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Initialize the encoder instance to encode Ogg FLAC files.
- *
- * This flavor of initialization sets up the encoder to encode to a plain
- * Ogg FLAC file. If POSIX fopen() semantics are not sufficient (for example,
- * with Unicode filenames on Windows), you must use
- * FLAC__stream_encoder_init_ogg_FILE(), or FLAC__stream_encoder_init_ogg_stream()
- * and provide callbacks for the I/O.
- *
- * This function should be called after FLAC__stream_encoder_new() and
- * FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
- * or FLAC__stream_encoder_process_interleaved().
- * initialization succeeded.
- *
- * \param encoder An uninitialized encoder instance.
- * \param filename The name of the file to encode to. The file will
- * be opened with fopen(). Use \c NULL to encode to
- * \c stdout. Note however that a proper SEEKTABLE
- * cannot be created when encoding to \c stdout since
- * it is not seekable.
- * \param progress_callback See FLAC__StreamEncoderProgressCallback. This
- * pointer may be \c NULL if the callback is not
- * desired.
- * \param client_data This value will be supplied to callbacks in their
- * \a client_data argument.
- * \assert
- * \code encoder != NULL \endcode
- * \retval FLAC__StreamEncoderInitStatus
- * \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
- * see FLAC__StreamEncoderInitStatus for the meanings of other return values.
- */
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
-
-/** Finish the encoding process.
- * Flushes the encoding buffer, releases resources, resets the encoder
- * settings to their defaults, and returns the encoder state to
- * FLAC__STREAM_ENCODER_UNINITIALIZED. Note that this can generate
- * one or more write callbacks before returning, and will generate
- * a metadata callback.
- *
- * Note that in the course of processing the last frame, errors can
- * occur, so the caller should be sure to check the return value to
- * ensure the file was encoded properly.
- *
- * In the event of a prematurely-terminated encode, it is not strictly
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- *
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- * \retval FLAC__bool
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- */
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-
-/** Submit data for encoding.
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- * should be a signed integer, right-justified to the resolution set by
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- * resolution is 16 bits per sample, the samples should all be in the
- * range [-32768,32767].
- *
- * For applications where channel order is important, channels must
- * follow the order as described in the
- * <A HREF="../format.html#frame_header">frame header</A>.
- *
- * \param encoder An initialized encoder instance in the OK state.
- * \param buffer An array of pointers to each channel's signal.
- * \param samples The number of samples in one channel.
- * \assert
- * \code encoder != NULL \endcode
- * \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false; in this case, check the
- * encoder state with FLAC__stream_encoder_get_state() to see what
- * went wrong.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);
-
-/** Submit data for encoding.
- * This version allows you to supply the input data where the channels
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- * sample-aligned, i.e. the first value should be channel0_sample0
- * and the last value channelN_sampleM. Each sample should be a signed
- * integer, right-justified to the resolution set by
- * FLAC__stream_encoder_set_bits_per_sample(). For example, if the
- * resolution is 16 bits per sample, the samples should all be in the
- * range [-32768,32767].
- *
- * For applications where channel order is important, channels must
- * follow the order as described in the
- * <A HREF="../format.html#frame_header">frame header</A>.
- *
- * \param encoder An initialized encoder instance in the OK state.
- * \param buffer An array of channel-interleaved data (see above).
- * \param samples The number of samples in one channel, the same as for
- * FLAC__stream_encoder_process(). For example, if
- * encoding two channels, \c 1000 \a samples corresponds
- * to a \a buffer of 2000 values.
- * \assert
- * \code encoder != NULL \endcode
- * \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
- * \retval FLAC__bool
- * \c true if successful, else \c false; in this case, check the
- * encoder state with FLAC__stream_encoder_get_state() to see what
- * went wrong.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);
-
-/* \} */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
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+++ /dev/null
-/* alloc - Convenience routines for safely allocating memory
- * Copyright (C) 2007-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__SHARE__ALLOC_H
-#define FLAC__SHARE__ALLOC_H
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* WATCHOUT: for c++ you may have to #define __STDC_LIMIT_MACROS 1 real early
- * before #including this file, otherwise SIZE_MAX might not be defined
- */
-
-#include <limits.h> /* for SIZE_MAX */
-#if HAVE_STDINT_H
-#include <stdint.h> /* for SIZE_MAX in case limits.h didn't get it */
-#endif
-#include <stdlib.h> /* for size_t, malloc(), etc */
-#include "share/compat.h"
-
-#ifndef SIZE_MAX
-# ifndef SIZE_T_MAX
-# ifdef _MSC_VER
-# ifdef _WIN64
-# define SIZE_T_MAX FLAC__U64L(0xffffffffffffffff)
-# else
-# define SIZE_T_MAX 0xffffffff
-# endif
-# else
-# error
-# endif
-# endif
-# define SIZE_MAX SIZE_T_MAX
-#endif
-
-/* avoid malloc()ing 0 bytes, see:
- * https://www.securecoding.cert.org/confluence/display/seccode/MEM04-A.+Do+not+make+assumptions+about+the+result+of+allocating+0+bytes?focusedCommentId=5407003
-*/
-static inline void *safe_malloc_(size_t size)
-{
- /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(!size)
- size++;
- return malloc(size);
-}
-
-static inline void *safe_calloc_(size_t nmemb, size_t size)
-{
- if(!nmemb || !size)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- return calloc(nmemb, size);
-}
-
-/*@@@@ there's probably a better way to prevent overflows when allocating untrusted sums but this works for now */
-
-static inline void *safe_malloc_add_2op_(size_t size1, size_t size2)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- return safe_malloc_(size2);
-}
-
-static inline void *safe_malloc_add_3op_(size_t size1, size_t size2, size_t size3)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- return safe_malloc_(size3);
-}
-
-static inline void *safe_malloc_add_4op_(size_t size1, size_t size2, size_t size3, size_t size4)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- size4 += size3;
- if(size4 < size3)
- return 0;
- return safe_malloc_(size4);
-}
-
-void *safe_malloc_mul_2op_(size_t size1, size_t size2) ;
-
-static inline void *safe_malloc_mul_3op_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || !size2 || !size3)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(size1 > SIZE_MAX / size2)
- return 0;
- size1 *= size2;
- if(size1 > SIZE_MAX / size3)
- return 0;
- return malloc(size1*size3);
-}
-
-/* size1*size2 + size3 */
-static inline void *safe_malloc_mul2add_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || !size2)
- return safe_malloc_(size3);
- if(size1 > SIZE_MAX / size2)
- return 0;
- return safe_malloc_add_2op_(size1*size2, size3);
-}
-
-/* size1 * (size2 + size3) */
-static inline void *safe_malloc_muladd2_(size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || (!size2 && !size3))
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- size2 += size3;
- if(size2 < size3)
- return 0;
- if(size1 > SIZE_MAX / size2)
- return 0;
- return malloc(size1*size2);
-}
-
-static inline void *safe_realloc_(void *ptr, size_t size)
-{
- void *oldptr = ptr;
- void *newptr = realloc(ptr, size);
- if(size > 0 && newptr == 0)
- free(oldptr);
- return newptr;
-}
-static inline void *safe_realloc_add_2op_(void *ptr, size_t size1, size_t size2)
-{
- size2 += size1;
- if(size2 < size1) {
- free(ptr);
- return 0;
- }
- return realloc(ptr, size2);
-}
-
-static inline void *safe_realloc_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- return realloc(ptr, size3);
-}
-
-static inline void *safe_realloc_add_4op_(void *ptr, size_t size1, size_t size2, size_t size3, size_t size4)
-{
- size2 += size1;
- if(size2 < size1)
- return 0;
- size3 += size2;
- if(size3 < size2)
- return 0;
- size4 += size3;
- if(size4 < size3)
- return 0;
- return realloc(ptr, size4);
-}
-
-static inline void *safe_realloc_mul_2op_(void *ptr, size_t size1, size_t size2)
-{
- if(!size1 || !size2)
- return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
- if(size1 > SIZE_MAX / size2)
- return 0;
- return safe_realloc_(ptr, size1*size2);
-}
-
-/* size1 * (size2 + size3) */
-static inline void *safe_realloc_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
-{
- if(!size1 || (!size2 && !size3))
- return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
- size2 += size3;
- if(size2 < size3)
- return 0;
- return safe_realloc_mul_2op_(ptr, size1, size2);
-}
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2012-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* This is the prefered location of all CPP hackery to make $random_compiler
- * work like something approaching a C99 (or maybe more accurately GNU99)
- * compiler.
- *
- * It is assumed that this header will be included after "config.h".
- */
-
-#ifndef FLAC__SHARE__COMPAT_H
-#define FLAC__SHARE__COMPAT_H
-
-#if defined _WIN32 && !defined __CYGWIN__
-/* where MSVC puts unlink() */
-# include <io.h>
-#else
-# include <unistd.h>
-#endif
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
-#include <sys/types.h> /* for off_t */
-#define FLAC__off_t __int64 /* use this instead of off_t to fix the 2 GB limit */
-#if !defined __MINGW32__
-#define fseeko _fseeki64
-#define ftello _ftelli64
-#else /* MinGW */
-#if !defined(HAVE_FSEEKO)
-#define fseeko fseeko64
-#define ftello ftello64
-#endif
-#endif
-#else
-#define FLAC__off_t off_t
-#endif
-
-#if HAVE_INTTYPES_H
-#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
-#endif
-
-#if defined(_MSC_VER)
-#define strtoll _strtoi64
-#define strtoull _strtoui64
-#endif
-
-#if defined(_MSC_VER)
-#define inline __inline
-#endif
-
-#if defined __INTEL_COMPILER || (defined _MSC_VER && defined _WIN64)
-/* MSVS generates VERY slow 32-bit code with __restrict */
-#define flac_restrict __restrict
-#elif defined __GNUC__
-#define flac_restrict __restrict__
-#else
-#define flac_restrict
-#endif
-
-#define FLAC__U64L(x) x##ULL
-
-#if defined _MSC_VER || defined __MINGW32__
-#define FLAC__STRCASECMP _stricmp
-#define FLAC__STRNCASECMP _strnicmp
-#elif defined __BORLANDC__
-#define FLAC__STRCASECMP stricmp
-#define FLAC__STRNCASECMP strnicmp
-#else
-#define FLAC__STRCASECMP strcasecmp
-#define FLAC__STRNCASECMP strncasecmp
-#endif
-
-#if defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ || defined __EMX__
-#include <io.h> /* for _setmode(), chmod() */
-#include <fcntl.h> /* for _O_BINARY */
-#else
-#include <unistd.h> /* for chown(), unlink() */
-#endif
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
-#if defined __BORLANDC__
-#include <utime.h> /* for utime() */
-#else
-#include <sys/utime.h> /* for utime() */
-#endif
-#else
-#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
-#include <utime.h> /* for utime() */
-#endif
-
-#if defined _MSC_VER
-# if _MSC_VER >= 1800
-# include <inttypes.h>
-# elif _MSC_VER >= 1600
-/* Visual Studio 2010 has decent C99 support */
-# include <stdint.h>
-# define PRIu64 "llu"
-# define PRId64 "lld"
-# define PRIx64 "llx"
-# else
-# include <limits.h>
-# ifndef UINT32_MAX
-# define UINT32_MAX _UI32_MAX
-# endif
- typedef unsigned __int64 uint64_t;
- typedef unsigned __int32 uint32_t;
- typedef unsigned __int16 uint16_t;
- typedef unsigned __int8 uint8_t;
- typedef __int64 int64_t;
- typedef __int32 int32_t;
- typedef __int16 int16_t;
- typedef __int8 int8_t;
-# define PRIu64 "I64u"
-# define PRId64 "I64d"
-# define PRIx64 "I64x"
-# endif
-#endif /* defined _MSC_VER */
-
-#ifdef _WIN32
-/* All char* strings are in UTF-8 format. Added to support Unicode files on Windows */
-
-#include "share/win_utf8_io.h"
-#define flac_printf printf_utf8
-#define flac_fprintf fprintf_utf8
-#define flac_vfprintf vfprintf_utf8
-
-#include "share/windows_unicode_filenames.h"
-#define flac_fopen flac_internal_fopen_utf8
-#define flac_chmod flac_internal_chmod_utf8
-#define flac_utime flac_internal_utime_utf8
-#define flac_unlink flac_internal_unlink_utf8
-#define flac_rename flac_internal_rename_utf8
-#define flac_stat flac_internal_stat64_utf8
-
-#else
-
-#define flac_printf printf
-#define flac_fprintf fprintf
-#define flac_vfprintf vfprintf
-
-#define flac_fopen fopen
-#define flac_chmod chmod
-#define flac_utime utime
-#define flac_unlink unlink
-#define flac_rename rename
-#define flac_stat stat
-
-#endif
-
-#ifdef _WIN32
-#define flac_stat_s __stat64 /* stat struct */
-#define flac_fstat _fstat64
-#else
-#define flac_stat_s stat /* stat struct */
-#define flac_fstat fstat
-#endif
-
-#ifndef M_LN2
-#define M_LN2 0.69314718055994530942
-#endif
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-/* FLAC needs to compile and work correctly on systems with a normal ISO C99
- * snprintf as well as Microsoft Visual Studio which has an non-standards
- * conformant snprint_s function.
- *
- * This function wraps the MS version to behave more like the ISO version.
- */
-#include <stdarg.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-int flac_snprintf(char *str, size_t size, const char *fmt, ...);
-int flac_vsnprintf(char *str, size_t size, const char *fmt, va_list va);
-#ifdef __cplusplus
-};
-#endif
-
-#endif /* FLAC__SHARE__COMPAT_H */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2012-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* It is assumed that this header will be included after "config.h". */
-
-#if HAVE_BSWAP32 /* GCC and Clang */
-
-/* GCC prior to 4.8 didn't provide bswap16 on x86_64 */
-#if ! HAVE_BSWAP16
-static inline unsigned short __builtin_bswap16(unsigned short a)
-{
- return (a<<8)|(a>>8);
-}
-#endif
-
-#define ENDSWAP_16(x) (__builtin_bswap16 (x))
-#define ENDSWAP_32(x) (__builtin_bswap32 (x))
-#define ENDSWAP_64(x) (__builtin_bswap64 (x))
-
-#elif defined _MSC_VER /* Windows */
-
-#include <stdlib.h>
-
-#define ENDSWAP_16(x) (_byteswap_ushort (x))
-#define ENDSWAP_32(x) (_byteswap_ulong (x))
-#define ENDSWAP_64(x) (_byteswap_uint64 (x))
-
-#elif defined HAVE_BYTESWAP_H /* Linux */
-
-#include <byteswap.h>
-
-#define ENDSWAP_16(x) (bswap_16 (x))
-#define ENDSWAP_32(x) (bswap_32 (x))
-#define ENDSWAP_64(x) (bswap_64 (x))
-
-#else
-
-#define ENDSWAP_16(x) ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
-#define ENDSWAP_32(x) ((((x) >> 24) & 0xFF) | (((x) >> 8) & 0xFF00) | (((x) & 0xFF00) << 8) | (((x) & 0xFF) << 24))
-#define ENDSWAP_64(x) ((ENDSWAP_32(((x) >> 32) & 0xFFFFFFFF)) | (ENDSWAP_32((x) & 0xFFFFFFFF) << 32))
-
-#endif
-
-
-/* Host to little-endian byte swapping (for MD5 calculation) */
-#if CPU_IS_BIG_ENDIAN
-
-#define H2LE_16(x) ENDSWAP_16 (x)
-#define H2LE_32(x) ENDSWAP_32 (x)
-
-#else
-
-#define H2LE_16(x) (x)
-#define H2LE_32(x) (x)
-
-#endif
+++ /dev/null
-/*
- NOTE:
- I cannot get the vanilla getopt code to work (i.e. compile only what
- is needed and not duplicate symbols found in the standard library)
- on all the platforms that FLAC supports. In particular the gating
- of code with the ELIDE_CODE #define is not accurate enough on systems
- that are POSIX but not glibc. If someone has a patch that works on
- GNU/Linux, Darwin, AND Solaris please submit it on the project page:
- https://sourceforge.net/p/flac/patches/
-
- In the meantime I have munged the global symbols and removed gates
- around code, while at the same time trying to touch the original as
- little as possible.
-*/
-/* Declarations for getopt.
- Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-
-#ifndef SHARE__GETOPT_H
-#define SHARE__GETOPT_H
-
-/*[JEC] was:#ifndef __need_getopt*/
-/*[JEC] was:# define _GETOPT_H 1*/
-/*[JEC] was:#endif*/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* For communication from `share__getopt' to the caller.
- When `share__getopt' finds an option that takes an argument,
- the argument value is returned here.
- Also, when `ordering' is RETURN_IN_ORDER,
- each non-option ARGV-element is returned here. */
-
-extern char *share__optarg;
-
-/* Index in ARGV of the next element to be scanned.
- This is used for communication to and from the caller
- and for communication between successive calls to `share__getopt'.
-
- On entry to `share__getopt', zero means this is the first call; initialize.
-
- When `share__getopt' returns -1, this is the index of the first of the
- non-option elements that the caller should itself scan.
-
- Otherwise, `share__optind' communicates from one call to the next
- how much of ARGV has been scanned so far. */
-
-extern int share__optind;
-
-/* Callers store zero here to inhibit the error message `share__getopt' prints
- for unrecognized options. */
-
-extern int share__opterr;
-
-/* Set to an option character which was unrecognized. */
-
-extern int share__optopt;
-
-/*[JEC] was:#ifndef __need_getopt */
-/* Describe the long-named options requested by the application.
- The LONG_OPTIONS argument to share__getopt_long or share__getopt_long_only is a vector
- of `struct share__option' terminated by an element containing a name which is
- zero.
-
- The field `has_arg' is:
- share__no_argument (or 0) if the option does not take an argument,
- share__required_argument (or 1) if the option requires an argument,
- share__optional_argument (or 2) if the option takes an optional argument.
-
- If the field `flag' is not NULL, it points to a variable that is set
- to the value given in the field `val' when the option is found, but
- left unchanged if the option is not found.
-
- To have a long-named option do something other than set an `int' to
- a compiled-in constant, such as set a value from `share__optarg', set the
- option's `flag' field to zero and its `val' field to a nonzero
- value (the equivalent single-letter option character, if there is
- one). For long options that have a zero `flag' field, `share__getopt'
- returns the contents of the `val' field. */
-
-struct share__option
-{
-# if defined __STDC__ && __STDC__
- const char *name;
-# else
- char *name;
-# endif
- /* has_arg can't be an enum because some compilers complain about
- type mismatches in all the code that assumes it is an int. */
- int has_arg;
- int *flag;
- int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct share__option'. */
-
-# define share__no_argument 0
-# define share__required_argument 1
-# define share__optional_argument 2
-/*[JEC] was:#endif*/ /* need getopt */
-
-
-/* Get definitions and prototypes for functions to process the
- arguments in ARGV (ARGC of them, minus the program name) for
- options given in OPTS.
-
- Return the option character from OPTS just read. Return -1 when
- there are no more options. For unrecognized options, or options
- missing arguments, `share__optopt' is set to the option letter, and '?' is
- returned.
-
- The OPTS string is a list of characters which are recognized option
- letters, optionally followed by colons, specifying that that letter
- takes an argument, to be placed in `share__optarg'.
-
- If a letter in OPTS is followed by two colons, its argument is
- optional. This behavior is specific to the GNU `share__getopt'.
-
- The argument `--' causes premature termination of argument
- scanning, explicitly telling `share__getopt' that there are no more
- options.
-
- If OPTS begins with `--', then non-option arguments are treated as
- arguments to the option '\0'. This behavior is specific to the GNU
- `share__getopt'. */
-
-/*[JEC] was:#if defined __STDC__ && __STDC__*/
-/*[JEC] was:# ifdef __GNU_LIBRARY__*/
-/* Many other libraries have conflicting prototypes for getopt, with
- differences in the consts, in stdlib.h. To avoid compilation
- errors, only prototype getopt for the GNU C library. */
-extern int share__getopt (int argc, char *const *argv, const char *shortopts);
-/*[JEC] was:# else*/ /* not __GNU_LIBRARY__ */
-/*[JEC] was:extern int getopt ();*/
-/*[JEC] was:# endif*/ /* __GNU_LIBRARY__ */
-
-/*[JEC] was:# ifndef __need_getopt*/
-extern int share__getopt_long (int argc, char *const *argv, const char *shortopts,
- const struct share__option *longopts, int *longind);
-extern int share__getopt_long_only (int argc, char *const *argv,
- const char *shortopts,
- const struct share__option *longopts, int *longind);
-
-/* Internal only. Users should not call this directly. */
-extern int share___getopt_internal (int argc, char *const *argv,
- const char *shortopts,
- const struct share__option *longopts, int *longind,
- int long_only);
-/*[JEC] was:# endif*/
-/*[JEC] was:#else*/ /* not __STDC__ */
-/*[JEC] was:extern int getopt ();*/
-/*[JEC] was:# ifndef __need_getopt*/
-/*[JEC] was:extern int getopt_long ();*/
-/*[JEC] was:extern int getopt_long_only ();*/
-
-/*[JEC] was:extern int _getopt_internal ();*/
-/*[JEC] was:# endif*/
-/*[JEC] was:#endif*/ /* __STDC__ */
-
-#ifdef __cplusplus
-}
-#endif
-
-/* Make sure we later can get all the definitions and declarations. */
-/*[JEC] was:#undef __need_getopt*/
-
-#endif /* getopt.h */
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef SHARE__GRABBAG_H
-#define SHARE__GRABBAG_H
-
-/* These can't be included by themselves, only from within grabbag.h */
-#include "grabbag/cuesheet.h"
-#include "grabbag/file.h"
-#include "grabbag/picture.h"
-#include "grabbag/replaygain.h"
-#include "grabbag/seektable.h"
-
-#endif
+++ /dev/null
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-
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- picture.h \
- replaygain.h \
- seektable.h
+++ /dev/null
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-# @configure_input@
-
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
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-# with or without modifications, as long as this notice is preserved.
-
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-EXEEXT = @EXEEXT@
-FGREP = @FGREP@
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-VERSION = @VERSION@
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-XMMS_GENERAL_PLUGIN_DIR = @XMMS_GENERAL_PLUGIN_DIR@
-XMMS_INPUT_PLUGIN_DIR = @XMMS_INPUT_PLUGIN_DIR@
-XMMS_LIBS = @XMMS_LIBS@
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-.NOEXPORT:
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
-
-#ifndef GRABBAG__CUESHEET_H
-#define GRABBAG__CUESHEET_H
-
-#include <stdio.h>
-#include "FLAC/metadata.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-unsigned grabbag__cuesheet_msf_to_frame(unsigned minutes, unsigned seconds, unsigned frames);
-void grabbag__cuesheet_frame_to_msf(unsigned frame, unsigned *minutes, unsigned *seconds, unsigned *frames);
-
-FLAC__StreamMetadata *grabbag__cuesheet_parse(FILE *file, const char **error_message, unsigned *last_line_read, unsigned sample_rate, FLAC__bool is_cdda, FLAC__uint64 lead_out_offset);
-
-void grabbag__cuesheet_emit(FILE *file, const FLAC__StreamMetadata *cuesheet, const char *file_reference);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/* Convenience routines for manipulating files */
-
-/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
-
-#ifndef GRABAG__FILE_H
-#define GRABAG__FILE_H
-
-/* needed because of off_t */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <sys/types.h> /* for off_t */
-#include <stdio.h> /* for FILE */
-#include "FLAC/ordinals.h"
-#include "share/compat.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void grabbag__file_copy_metadata(const char *srcpath, const char *destpath);
-FLAC__off_t grabbag__file_get_filesize(const char *srcpath);
-const char *grabbag__file_get_basename(const char *srcpath);
-
-/* read_only == false means "make file writable by user"
- * read_only == true means "make file read-only for everyone"
- */
-FLAC__bool grabbag__file_change_stats(const char *filename, FLAC__bool read_only);
-
-/* returns true iff stat() succeeds for both files and they have the same device and inode. */
-/* on windows, uses GetFileInformationByHandle() to compare */
-FLAC__bool grabbag__file_are_same(const char *f1, const char *f2);
-
-/* attempts to make writable before unlinking */
-FLAC__bool grabbag__file_remove_file(const char *filename);
-
-/* these will forcibly set stdin/stdout to binary mode (for OSes that require it) */
-FILE *grabbag__file_get_binary_stdin(void);
-FILE *grabbag__file_get_binary_stdout(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2006-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
-
-#ifndef GRABBAG__PICTURE_H
-#define GRABBAG__PICTURE_H
-
-#include "FLAC/metadata.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* spec should be of the form "[TYPE]|MIME_TYPE|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE", e.g.
- * "|image/jpeg|||cover.jpg"
- * "4|image/jpeg||300x300x24|backcover.jpg"
- * "|image/png|description|300x300x24/71|cover.png"
- * "-->|image/gif||300x300x24/71|http://blah.blah.blah/cover.gif"
- *
- * empty type means default to FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER
- * empty resolution spec means to get from the file (cannot get used with "-->" linked images)
- * spec and error_message must not be NULL
- */
-FLAC__StreamMetadata *grabbag__picture_parse_specification(const char *spec, const char **error_message);
-
-typedef struct PictureResolution
-{ uint32_t width, height, depth, colors ;
-} PictureResolution ;
-
-FLAC__StreamMetadata *grabbag__picture_from_specification(int type, const char *mime_type, const char * description,
- const PictureResolution * res, const char * filepath, const char **error_message);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/*
- * This wraps the replaygain_analysis lib, which is LGPL. This wrapper
- * allows analysis of different input resolutions by automatically
- * scaling the input signal
- */
-
-/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
-
-#ifndef GRABBAG__REPLAYGAIN_H
-#define GRABBAG__REPLAYGAIN_H
-
-#include "FLAC/metadata.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern const unsigned GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
-
-extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS; /* = "REPLAYGAIN_REFERENCE_LOUDNESS" */
-extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN; /* = "REPLAYGAIN_TRACK_GAIN" */
-extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK; /* = "REPLAYGAIN_TRACK_PEAK" */
-extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN; /* = "REPLAYGAIN_ALBUM_GAIN" */
-extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK; /* = "REPLAYGAIN_ALBUM_PEAK" */
-
-FLAC__bool grabbag__replaygain_is_valid_sample_frequency(unsigned sample_frequency);
-
-FLAC__bool grabbag__replaygain_init(unsigned sample_frequency);
-
-/* 'bps' must be valid for FLAC, i.e. >=4 and <= 32 */
-FLAC__bool grabbag__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples);
-
-void grabbag__replaygain_get_album(float *gain, float *peak);
-void grabbag__replaygain_get_title(float *gain, float *peak);
-
-/* These three functions return an error string on error, or NULL if successful */
-const char *grabbag__replaygain_analyze_file(const char *filename, float *title_gain, float *title_peak);
-const char *grabbag__replaygain_store_to_vorbiscomment(FLAC__StreamMetadata *block, float album_gain, float album_peak, float title_gain, float title_peak);
-const char *grabbag__replaygain_store_to_vorbiscomment_reference(FLAC__StreamMetadata *block);
-const char *grabbag__replaygain_store_to_vorbiscomment_album(FLAC__StreamMetadata *block, float album_gain, float album_peak);
-const char *grabbag__replaygain_store_to_vorbiscomment_title(FLAC__StreamMetadata *block, float title_gain, float title_peak);
-const char *grabbag__replaygain_store_to_file(const char *filename, float album_gain, float album_peak, float title_gain, float title_peak, FLAC__bool preserve_modtime);
-const char *grabbag__replaygain_store_to_file_reference(const char *filename, FLAC__bool preserve_modtime);
-const char *grabbag__replaygain_store_to_file_album(const char *filename, float album_gain, float album_peak, FLAC__bool preserve_modtime);
-const char *grabbag__replaygain_store_to_file_title(const char *filename, float title_gain, float title_peak, FLAC__bool preserve_modtime);
-
-FLAC__bool grabbag__replaygain_load_from_vorbiscomment(const FLAC__StreamMetadata *block, FLAC__bool album_mode, FLAC__bool strict, double *reference, double *gain, double *peak);
-double grabbag__replaygain_compute_scale_factor(double peak, double gain, double preamp, FLAC__bool prevent_clipping);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/* Convenience routines for working with seek tables */
-
-/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
-
-#ifndef GRABAG__SEEKTABLE_H
-#define GRABAG__SEEKTABLE_H
-
-#include "FLAC/format.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-FLAC__bool grabbag__seektable_convert_specification_to_template(const char *spec, FLAC__bool only_explicit_placeholders, FLAC__uint64 total_samples_to_encode, unsigned sample_rate, FLAC__StreamMetadata *seektable_template, FLAC__bool *spec_has_real_points);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <errno.h>
-
-/* FLAC_CHECK_RETURN : Check the return value of the provided function and
- * print an error message if it fails (ie returns a value < 0).
- *
- * Ideally, a library should not print anything, but this macro is only used
- * for things that extremely unlikely to fail, like `chown` to a previoulsy
- * saved `uid`.
- */
-
-#define FLAC_CHECK_RETURN(x) \
- { if ((x) < 0) \
- fprintf (stderr, "%s : %s\n", #x, strerror (errno)) ; \
- }
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__SHARE__PRIVATE_H
-#define FLAC__SHARE__PRIVATE_H
-
-/*
- * Unpublished debug routines from libFLAC> This should not be used from any
- * client code other than code shipped with the FLAC sources.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value);
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder);
-
-#endif /* FLAC__SHARE__PRIVATE_H */
+++ /dev/null
-/*
- * ReplayGainAnalysis - analyzes input samples and give the recommended dB change
- * Copyright (C) 2001 David Robinson and Glen Sawyer
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * concept and filter values by David Robinson (David@Robinson.org)
- * -- blame him if you think the idea is flawed
- * coding by Glen Sawyer (glensawyer@hotmail.com) 442 N 700 E, Provo, UT 84606 USA
- * -- blame him if you think this runs too slowly, or the coding is otherwise flawed
- * minor cosmetic tweaks to integrate with FLAC by Josh Coalson
- *
- * For an explanation of the concepts and the basic algorithms involved, go to:
- * http://www.replaygain.org/
- */
-
-#ifndef GAIN_ANALYSIS_H
-#define GAIN_ANALYSIS_H
-
-#include <stddef.h>
-
-#define GAIN_NOT_ENOUGH_SAMPLES -24601
-#define GAIN_ANALYSIS_ERROR 0
-#define GAIN_ANALYSIS_OK 1
-
-#define INIT_GAIN_ANALYSIS_ERROR 0
-#define INIT_GAIN_ANALYSIS_OK 1
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef float flac_float_t; /* Type used for filtering */
-
-extern flac_float_t ReplayGainReferenceLoudness; /* in dB SPL, currently == 89.0 */
-
-int InitGainAnalysis ( long samplefreq );
-int ValidGainFrequency ( long samplefreq );
-int AnalyzeSamples ( const flac_float_t* left_samples, const flac_float_t* right_samples, size_t num_samples, int num_channels );
-flac_float_t GetTitleGain ( void );
-flac_float_t GetAlbumGain ( void );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* GAIN_ANALYSIS_H */
+++ /dev/null
-/* replaygain_synthesis - Routines for applying ReplayGain to a signal
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef FLAC__SHARE__REPLAYGAIN_SYNTHESIS_H
-#define FLAC__SHARE__REPLAYGAIN_SYNTHESIS_H
-
-#include <stdlib.h> /* for size_t */
-#include "FLAC/format.h"
-
-#define FLAC_SHARE__MAX_SUPPORTED_CHANNELS FLAC__MAX_CHANNELS
-
-typedef enum {
- NOISE_SHAPING_NONE = 0,
- NOISE_SHAPING_LOW = 1,
- NOISE_SHAPING_MEDIUM = 2,
- NOISE_SHAPING_HIGH = 3
-} NoiseShaping;
-
-typedef struct {
- const float* FilterCoeff;
- FLAC__uint64 Mask;
- double Add;
- float Dither;
- float ErrorHistory [FLAC_SHARE__MAX_SUPPORTED_CHANNELS] [16]; /* 16th order Noise shaping */
- float DitherHistory [FLAC_SHARE__MAX_SUPPORTED_CHANNELS] [16];
- int LastRandomNumber [FLAC_SHARE__MAX_SUPPORTED_CHANNELS];
- unsigned LastHistoryIndex;
- NoiseShaping ShapingType;
-} DitherContext;
-
-void FLAC__replaygain_synthesis__init_dither_context(DitherContext *dither, int bits, int shapingtype);
-
-/* scale = (float) pow(10., (double)replaygain * 0.05); */
-size_t FLAC__replaygain_synthesis__apply_gain(FLAC__byte *data_out, FLAC__bool little_endian_data_out, FLAC__bool unsigned_data_out, const FLAC__int32 * const input[], unsigned wide_samples, unsigned channels, const unsigned source_bps, const unsigned target_bps, const double scale, const FLAC__bool hard_limit, FLAC__bool do_dithering, DitherContext *dither_context);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* Safe string handling functions to replace things like strcpy, strncpy,
- * strcat, strncat etc.
- * All of these functions guarantee a correctly NUL terminated string but
- * the string may be truncated if the destination buffer was too short.
- */
-
-#ifndef FLAC__SHARE_SAFE_STR_H
-#define FLAC__SHARE_SAFE_STR_H
-
-static inline char *
-safe_strncat(char *dest, const char *src, size_t dest_size)
-{
- char * ret;
-
- if (dest_size < 1)
- return dest;
-
- ret = strncat(dest, src, dest_size - strlen (dest));
- dest [dest_size - 1] = 0;
-
- return ret;
-}
-
-static inline char *
-safe_strncpy(char *dest, const char *src, size_t dest_size)
-{
- char * ret;
-
- if (dest_size < 1)
- return dest;
-
- ret = strncpy(dest, src, dest_size);
- dest [dest_size - 1] = 0;
-
- return ret;
-}
-
-#endif /* FLAC__SHARE_SAFE_STR_H */
+++ /dev/null
-#ifndef SHARE__UTF8_H
-#define SHARE__UTF8_H
-
-/*
- * Convert a string between UTF-8 and the locale's charset.
- * Invalid bytes are replaced by '#', and characters that are
- * not available in the target encoding are replaced by '?'.
- *
- * If the locale's charset is not set explicitly then it is
- * obtained using nl_langinfo(CODESET), where available, the
- * environment variable CHARSET, or assumed to be US-ASCII.
- *
- * Return value of conversion functions:
- *
- * -1 : memory allocation failed
- * 0 : data was converted exactly
- * 1 : valid data was converted approximately (using '?')
- * 2 : input was invalid (but still converted, using '#')
- * 3 : unknown encoding (but still converted, using '?')
- */
-
-int utf8_encode(const char *from, char **to);
-int utf8_decode(const char *from, char **to);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef _WIN32
-
-#ifndef flac__win_utf8_io_h
-#define flac__win_utf8_io_h
-
-#include <stdio.h>
-#include <stdarg.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-size_t strlen_utf8(const char *str);
-int win_get_console_width(void);
-
-int get_utf8_argv(int *argc, char ***argv);
-
-int printf_utf8(const char *format, ...);
-int fprintf_utf8(FILE *stream, const char *format, ...);
-int vfprintf_utf8(FILE *stream, const char *format, va_list argptr);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef _WIN32
-
-#ifndef flac__windows_unicode_filenames_h
-#define flac__windows_unicode_filenames_h
-
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/utime.h>
-#include "FLAC/ordinals.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void flac_internal_set_utf8_filenames(FLAC__bool flag);
-FLAC__bool flac_internal_get_utf8_filenames(void);
-#define flac_set_utf8_filenames flac_internal_set_utf8_filenames
-#define flac_get_utf8_filenames flac_internal_get_utf8_filenames
-
-FILE* flac_internal_fopen_utf8(const char *filename, const char *mode);
-int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer);
-int flac_internal_chmod_utf8(const char *filename, int pmode);
-int flac_internal_utime_utf8(const char *filename, struct utimbuf *times);
-int flac_internal_unlink_utf8(const char *filename);
-int flac_internal_rename_utf8(const char *oldname, const char *newname);
-
-#include <windows.h>
-HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile);
-#define CreateFile_utf8 flac_internal_CreateFile_utf8
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif
-#endif
+++ /dev/null
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- metadata_utils.h
+++ /dev/null
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+++ /dev/null
-/* test_libFLAC - Unit tester for libFLAC
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef FLAC__TEST_LIBFLAC_FILE_UTILS_H
-#define FLAC__TEST_LIBFLAC_FILE_UTILS_H
-
-/* needed because of off_t */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "FLAC/format.h"
-#include <sys/types.h> /* for off_t */
-#include "share/compat.h"
-
-extern const long file_utils__ogg_serial_number;
-
-FLAC__bool file_utils__generate_flacfile(FLAC__bool is_ogg, const char *output_filename, FLAC__off_t *output_filesize, unsigned length, const FLAC__StreamMetadata *streaminfo, FLAC__StreamMetadata **metadata, unsigned num_metadata);
-
-#endif
+++ /dev/null
-/* test_libFLAC - Unit tester for libFLAC
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef FLAC__TEST_LIBS_COMMON_METADATA_UTILS_H
-#define FLAC__TEST_LIBS_COMMON_METADATA_UTILS_H
-
-/*
- * These are not tests, just utility functions used by the metadata tests
- */
-
-#include "FLAC/format.h"
-
-FLAC__bool mutils__compare_block_data_streaminfo(const FLAC__StreamMetadata_StreamInfo *block, const FLAC__StreamMetadata_StreamInfo *blockcopy);
-
-FLAC__bool mutils__compare_block_data_padding(const FLAC__StreamMetadata_Padding *block, const FLAC__StreamMetadata_Padding *blockcopy, unsigned block_length);
-
-FLAC__bool mutils__compare_block_data_application(const FLAC__StreamMetadata_Application *block, const FLAC__StreamMetadata_Application *blockcopy, unsigned block_length);
-
-FLAC__bool mutils__compare_block_data_seektable(const FLAC__StreamMetadata_SeekTable *block, const FLAC__StreamMetadata_SeekTable *blockcopy);
-
-FLAC__bool mutils__compare_block_data_vorbiscomment(const FLAC__StreamMetadata_VorbisComment *block, const FLAC__StreamMetadata_VorbisComment *blockcopy);
-
-FLAC__bool mutils__compare_block_data_cuesheet(const FLAC__StreamMetadata_CueSheet *block, const FLAC__StreamMetadata_CueSheet *blockcopy);
-
-FLAC__bool mutils__compare_block_data_picture(const FLAC__StreamMetadata_Picture *block, const FLAC__StreamMetadata_Picture *blockcopy);
-
-FLAC__bool mutils__compare_block_data_unknown(const FLAC__StreamMetadata_Unknown *block, const FLAC__StreamMetadata_Unknown *blockcopy, unsigned block_length);
-
-FLAC__bool mutils__compare_block(const FLAC__StreamMetadata *block, const FLAC__StreamMetadata *blockcopy);
-
-void mutils__init_metadata_blocks(
- FLAC__StreamMetadata *streaminfo,
- FLAC__StreamMetadata *padding,
- FLAC__StreamMetadata *seektable,
- FLAC__StreamMetadata *application1,
- FLAC__StreamMetadata *application2,
- FLAC__StreamMetadata *vorbiscomment,
- FLAC__StreamMetadata *cuesheet,
- FLAC__StreamMetadata *picture,
- FLAC__StreamMetadata *unknown
-);
-
-void mutils__free_metadata_blocks(
- FLAC__StreamMetadata *streaminfo,
- FLAC__StreamMetadata *padding,
- FLAC__StreamMetadata *seektable,
- FLAC__StreamMetadata *application1,
- FLAC__StreamMetadata *application2,
- FLAC__StreamMetadata *vorbiscomment,
- FLAC__StreamMetadata *cuesheet,
- FLAC__StreamMetadata *picture,
- FLAC__StreamMetadata *unknown
-);
-
-#endif
+++ /dev/null
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
-lib_LTLIBRARIES = libFLAC.la
-noinst_LTLIBRARIES = libFLAC-static.la
-if DEBUG
-DEBUGCFLAGS = -DFLAC__OVERFLOW_DETECT
-endif
-
-# FIXME: The following logic should be part of configure, not of Makefile.am
-
-if FLaC__CPU_PPC
-if FLaC__SYS_DARWIN
-CPUCFLAGS = -faltivec
-else
-CPUCFLAGS =
-if FLaC__USE_ALTIVEC
-CPUCFLAGS += -maltivec -mabi=altivec
-endif
-endif
-endif
-
-AM_CFLAGS = $(DEBUGCFLAGS) $(CPUCFLAGS) @OGG_CFLAGS@
-
-if FLaC__NO_ASM
-else
-if FLaC__CPU_IA32
-if FLaC__HAS_NASM
-ARCH_SUBDIRS = ia32
-LOCAL_EXTRA_LIBADD = ia32/libFLAC-asm.la
-endif
-endif
-endif
-
-libFLAC_la_LIBADD = $(LOCAL_EXTRA_LIBADD) @OGG_LIBS@ -lm
-
-SUBDIRS = $(ARCH_SUBDIRS) include .
-
-m4datadir = $(datadir)/aclocal
-m4data_DATA = libFLAC.m4
-
-pkgconfigdir = $(libdir)/pkgconfig
-pkgconfig_DATA = flac.pc
-
-EXTRA_DIST = \
- Makefile.lite \
- flac.pc.in \
- libFLAC_dynamic.vcproj \
- libFLAC_dynamic.vcxproj \
- libFLAC_dynamic.vcxproj.filters \
- libFLAC_static.vcproj \
- libFLAC_static.vcxproj \
- libFLAC_static.vcxproj.filters \
- libFLAC.m4 \
- windows_unicode_filenames.c
-
-if OS_IS_WINDOWS
-windows_unicode_compat = windows_unicode_filenames.c
-endif
-
-if FLaC__HAS_OGG
-extra_ogg_sources = \
- ogg_decoder_aspect.c \
- ogg_encoder_aspect.c \
- ogg_helper.c \
- ogg_mapping.c
-endif
-
-# see 'http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning' for numbering convention
-libFLAC_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined -version-info 11:0:3 $(LOCAL_EXTRA_LDFLAGS)
-
-libFLAC_sources = \
- bitmath.c \
- bitreader.c \
- bitwriter.c \
- cpu.c \
- crc.c \
- fixed.c \
- fixed_intrin_sse2.c \
- fixed_intrin_ssse3.c \
- float.c \
- format.c \
- lpc.c \
- lpc_intrin_sse.c \
- lpc_intrin_sse2.c \
- lpc_intrin_sse41.c \
- lpc_intrin_avx2.c \
- md5.c \
- memory.c \
- metadata_iterators.c \
- metadata_object.c \
- stream_decoder.c \
- stream_encoder.c \
- stream_encoder_intrin_sse2.c \
- stream_encoder_intrin_ssse3.c \
- stream_encoder_intrin_avx2.c \
- stream_encoder_framing.c \
- window.c \
- $(windows_unicode_compat) \
- $(extra_ogg_sources)
-
-libFLAC_la_SOURCES = $(libFLAC_sources)
-
-# needed for test_libFLAC
-libFLAC_static_la_LIBADD = $(LOCAL_EXTRA_LIBADD)
-libFLAC_static_la_SOURCES = $(libFLAC_sources)
+++ /dev/null
-# Makefile.in generated by automake 1.15 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
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- metadata_object.c \
- stream_decoder.c \
- stream_encoder.c \
- stream_encoder_intrin_sse2.c \
- stream_encoder_intrin_ssse3.c \
- stream_encoder_intrin_avx2.c \
- stream_encoder_framing.c \
- window.c \
- $(WIN_UNICODE_COMPAT) \
- $(OGG_SRCS)
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/bitmath.h"
-
-/* An example of what FLAC__bitmath_silog2() computes:
- *
- * silog2(-10) = 5
- * silog2(- 9) = 5
- * silog2(- 8) = 4
- * silog2(- 7) = 4
- * silog2(- 6) = 4
- * silog2(- 5) = 4
- * silog2(- 4) = 3
- * silog2(- 3) = 3
- * silog2(- 2) = 2
- * silog2(- 1) = 2
- * silog2( 0) = 0
- * silog2( 1) = 2
- * silog2( 2) = 3
- * silog2( 3) = 3
- * silog2( 4) = 4
- * silog2( 5) = 4
- * silog2( 6) = 4
- * silog2( 7) = 4
- * silog2( 8) = 5
- * silog2( 9) = 5
- * silog2( 10) = 5
- */
-unsigned FLAC__bitmath_silog2(FLAC__int64 v)
-{
- if(v == 0)
- return 0;
-
- if(v == -1)
- return 2;
-
- v = (v < 0) ? (-(v+1)) : v;
- return FLAC__bitmath_ilog2_wide(v)+2;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "private/bitmath.h"
-#include "private/bitreader.h"
-#include "private/crc.h"
-#include "private/macros.h"
-#include "FLAC/assert.h"
-#include "share/compat.h"
-#include "share/endswap.h"
-
-/* Things should be fastest when this matches the machine word size */
-/* WATCHOUT: if you change this you must also change the following #defines down to COUNT_ZERO_MSBS2 below to match */
-/* WATCHOUT: there are a few places where the code will not work unless brword is >= 32 bits wide */
-/* also, some sections currently only have fast versions for 4 or 8 bytes per word */
-
-#if (ENABLE_64_BIT_WORDS == 0)
-
-typedef FLAC__uint32 brword;
-#define FLAC__BYTES_PER_WORD 4 /* sizeof brword */
-#define FLAC__BITS_PER_WORD 32
-#define FLAC__WORD_ALL_ONES ((FLAC__uint32)0xffffffff)
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a brword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_32(x)
-#endif
-/* counts the # of zero MSBs in a word */
-#define COUNT_ZERO_MSBS(word) FLAC__clz_uint32(word)
-#define COUNT_ZERO_MSBS2(word) FLAC__clz2_uint32(word)
-
-#else
-
-typedef FLAC__uint64 brword;
-#define FLAC__BYTES_PER_WORD 8 /* sizeof brword */
-#define FLAC__BITS_PER_WORD 64
-#define FLAC__WORD_ALL_ONES ((FLAC__uint64)FLAC__U64L(0xffffffffffffffff))
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a brword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_64(x)
-#endif
-/* counts the # of zero MSBs in a word */
-#define COUNT_ZERO_MSBS(word) FLAC__clz_uint64(word)
-#define COUNT_ZERO_MSBS2(word) FLAC__clz2_uint64(word)
-
-#endif
-
-/*
- * This should be at least twice as large as the largest number of words
- * required to represent any 'number' (in any encoding) you are going to
- * read. With FLAC this is on the order of maybe a few hundred bits.
- * If the buffer is smaller than that, the decoder won't be able to read
- * in a whole number that is in a variable length encoding (e.g. Rice).
- * But to be practical it should be at least 1K bytes.
- *
- * Increase this number to decrease the number of read callbacks, at the
- * expense of using more memory. Or decrease for the reverse effect,
- * keeping in mind the limit from the first paragraph. The optimal size
- * also depends on the CPU cache size and other factors; some twiddling
- * may be necessary to squeeze out the best performance.
- */
-static const unsigned FLAC__BITREADER_DEFAULT_CAPACITY = 65536u / FLAC__BITS_PER_WORD; /* in words */
-
-struct FLAC__BitReader {
- /* any partially-consumed word at the head will stay right-justified as bits are consumed from the left */
- /* any incomplete word at the tail will be left-justified, and bytes from the read callback are added on the right */
- brword *buffer;
- unsigned capacity; /* in words */
- unsigned words; /* # of completed words in buffer */
- unsigned bytes; /* # of bytes in incomplete word at buffer[words] */
- unsigned consumed_words; /* #words ... */
- unsigned consumed_bits; /* ... + (#bits of head word) already consumed from the front of buffer */
- unsigned read_crc16; /* the running frame CRC */
- unsigned crc16_align; /* the number of bits in the current consumed word that should not be CRC'd */
- FLAC__BitReaderReadCallback read_callback;
- void *client_data;
-};
-
-static inline void crc16_update_word_(FLAC__BitReader *br, brword word)
-{
- register unsigned crc = br->read_crc16;
-#if FLAC__BYTES_PER_WORD == 4
- switch(br->crc16_align) {
- case 0: crc = FLAC__CRC16_UPDATE((unsigned)(word >> 24), crc);
- case 8: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 16) & 0xff), crc);
- case 16: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 8) & 0xff), crc);
- case 24: br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)(word & 0xff), crc);
- }
-#elif FLAC__BYTES_PER_WORD == 8
- switch(br->crc16_align) {
- case 0: crc = FLAC__CRC16_UPDATE((unsigned)(word >> 56), crc);
- case 8: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 48) & 0xff), crc);
- case 16: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 40) & 0xff), crc);
- case 24: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 32) & 0xff), crc);
- case 32: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 24) & 0xff), crc);
- case 40: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 16) & 0xff), crc);
- case 48: crc = FLAC__CRC16_UPDATE((unsigned)((word >> 8) & 0xff), crc);
- case 56: br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)(word & 0xff), crc);
- }
-#else
- for( ; br->crc16_align < FLAC__BITS_PER_WORD; br->crc16_align += 8)
- crc = FLAC__CRC16_UPDATE((unsigned)((word >> (FLAC__BITS_PER_WORD-8-br->crc16_align)) & 0xff), crc);
- br->read_crc16 = crc;
-#endif
- br->crc16_align = 0;
-}
-
-static FLAC__bool bitreader_read_from_client_(FLAC__BitReader *br)
-{
- unsigned start, end;
- size_t bytes;
- FLAC__byte *target;
-
- /* first shift the unconsumed buffer data toward the front as much as possible */
- if(br->consumed_words > 0) {
- start = br->consumed_words;
- end = br->words + (br->bytes? 1:0);
- memmove(br->buffer, br->buffer+start, FLAC__BYTES_PER_WORD * (end - start));
-
- br->words -= start;
- br->consumed_words = 0;
- }
-
- /*
- * set the target for reading, taking into account word alignment and endianness
- */
- bytes = (br->capacity - br->words) * FLAC__BYTES_PER_WORD - br->bytes;
- if(bytes == 0)
- return false; /* no space left, buffer is too small; see note for FLAC__BITREADER_DEFAULT_CAPACITY */
- target = ((FLAC__byte*)(br->buffer+br->words)) + br->bytes;
-
- /* before reading, if the existing reader looks like this (say brword is 32 bits wide)
- * bitstream : 11 22 33 44 55 br->words=1 br->bytes=1 (partial tail word is left-justified)
- * buffer[BE]: 11 22 33 44 55 ?? ?? ?? (shown layed out as bytes sequentially in memory)
- * buffer[LE]: 44 33 22 11 ?? ?? ?? 55 (?? being don't-care)
- * ^^-------target, bytes=3
- * on LE machines, have to byteswap the odd tail word so nothing is
- * overwritten:
- */
-#if WORDS_BIGENDIAN
-#else
- if(br->bytes)
- br->buffer[br->words] = SWAP_BE_WORD_TO_HOST(br->buffer[br->words]);
-#endif
-
- /* now it looks like:
- * bitstream : 11 22 33 44 55 br->words=1 br->bytes=1
- * buffer[BE]: 11 22 33 44 55 ?? ?? ??
- * buffer[LE]: 44 33 22 11 55 ?? ?? ??
- * ^^-------target, bytes=3
- */
-
- /* read in the data; note that the callback may return a smaller number of bytes */
- if(!br->read_callback(target, &bytes, br->client_data))
- return false;
-
- /* after reading bytes 66 77 88 99 AA BB CC DD EE FF from the client:
- * bitstream : 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
- * buffer[BE]: 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
- * buffer[LE]: 44 33 22 11 55 66 77 88 99 AA BB CC DD EE FF ??
- * now have to byteswap on LE machines:
- */
-#if WORDS_BIGENDIAN
-#else
- end = (br->words*FLAC__BYTES_PER_WORD + br->bytes + (unsigned)bytes + (FLAC__BYTES_PER_WORD-1)) / FLAC__BYTES_PER_WORD;
- for(start = br->words; start < end; start++)
- br->buffer[start] = SWAP_BE_WORD_TO_HOST(br->buffer[start]);
-#endif
-
- /* now it looks like:
- * bitstream : 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
- * buffer[BE]: 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
- * buffer[LE]: 44 33 22 11 88 77 66 55 CC BB AA 99 ?? FF EE DD
- * finally we'll update the reader values:
- */
- end = br->words*FLAC__BYTES_PER_WORD + br->bytes + (unsigned)bytes;
- br->words = end / FLAC__BYTES_PER_WORD;
- br->bytes = end % FLAC__BYTES_PER_WORD;
-
- return true;
-}
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-FLAC__BitReader *FLAC__bitreader_new(void)
-{
- FLAC__BitReader *br = calloc(1, sizeof(FLAC__BitReader));
-
- /* calloc() implies:
- memset(br, 0, sizeof(FLAC__BitReader));
- br->buffer = 0;
- br->capacity = 0;
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->read_callback = 0;
- br->client_data = 0;
- */
- return br;
-}
-
-void FLAC__bitreader_delete(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
-
- FLAC__bitreader_free(br);
- free(br);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd)
-{
- FLAC__ASSERT(0 != br);
-
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->capacity = FLAC__BITREADER_DEFAULT_CAPACITY;
- br->buffer = malloc(sizeof(brword) * br->capacity);
- if(br->buffer == 0)
- return false;
- br->read_callback = rcb;
- br->client_data = cd;
-
- return true;
-}
-
-void FLAC__bitreader_free(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
-
- if(0 != br->buffer)
- free(br->buffer);
- br->buffer = 0;
- br->capacity = 0;
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- br->read_callback = 0;
- br->client_data = 0;
-}
-
-FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br)
-{
- br->words = br->bytes = 0;
- br->consumed_words = br->consumed_bits = 0;
- return true;
-}
-
-void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out)
-{
- unsigned i, j;
- if(br == 0) {
- fprintf(out, "bitreader is NULL\n");
- }
- else {
- fprintf(out, "bitreader: capacity=%u words=%u bytes=%u consumed: words=%u, bits=%u\n", br->capacity, br->words, br->bytes, br->consumed_words, br->consumed_bits);
-
- for(i = 0; i < br->words; i++) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < FLAC__BITS_PER_WORD; j++)
- if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
- fprintf(out, ".");
- else
- fprintf(out, "%01u", br->buffer[i] & ((brword)1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- if(br->bytes > 0) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < br->bytes*8; j++)
- if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
- fprintf(out, ".");
- else
- fprintf(out, "%01u", br->buffer[i] & ((brword)1 << (br->bytes*8-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- }
-}
-
-void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT((br->consumed_bits & 7) == 0);
-
- br->read_crc16 = (unsigned)seed;
- br->crc16_align = br->consumed_bits;
-}
-
-FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT((br->consumed_bits & 7) == 0);
- FLAC__ASSERT(br->crc16_align <= br->consumed_bits);
-
- /* CRC any tail bytes in a partially-consumed word */
- if(br->consumed_bits) {
- const brword tail = br->buffer[br->consumed_words];
- for( ; br->crc16_align < br->consumed_bits; br->crc16_align += 8)
- br->read_crc16 = FLAC__CRC16_UPDATE((unsigned)((tail >> (FLAC__BITS_PER_WORD-8-br->crc16_align)) & 0xff), br->read_crc16);
- }
- return br->read_crc16;
-}
-
-inline FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br)
-{
- return ((br->consumed_bits & 7) == 0);
-}
-
-inline unsigned FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br)
-{
- return 8 - (br->consumed_bits & 7);
-}
-
-inline unsigned FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br)
-{
- return (br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits;
-}
-
-FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, unsigned bits)
-{
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- FLAC__ASSERT(bits <= 32);
- FLAC__ASSERT((br->capacity*FLAC__BITS_PER_WORD) * 2 >= bits);
- FLAC__ASSERT(br->consumed_words <= br->words);
-
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- if(bits == 0) { /* OPT: investigate if this can ever happen, maybe change to assertion */
- *val = 0;
- return true;
- }
-
- while((br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits < bits) {
- if(!bitreader_read_from_client_(br))
- return false;
- }
- if(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
- /* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
- if(br->consumed_bits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- const unsigned n = FLAC__BITS_PER_WORD - br->consumed_bits;
- const brword word = br->buffer[br->consumed_words];
- if(bits < n) {
- *val = (FLAC__uint32)((word & (FLAC__WORD_ALL_ONES >> br->consumed_bits)) >> (n-bits)); /* The result has <= 32 non-zero bits */
- br->consumed_bits += bits;
- return true;
- }
- /* (FLAC__BITS_PER_WORD - br->consumed_bits <= bits) ==> (FLAC__WORD_ALL_ONES >> br->consumed_bits) has no more than 'bits' non-zero bits */
- *val = (FLAC__uint32)(word & (FLAC__WORD_ALL_ONES >> br->consumed_bits));
- bits -= n;
- crc16_update_word_(br, word);
- br->consumed_words++;
- br->consumed_bits = 0;
- if(bits) { /* if there are still bits left to read, there have to be less than 32 so they will all be in the next word */
- *val <<= bits;
- *val |= (FLAC__uint32)(br->buffer[br->consumed_words] >> (FLAC__BITS_PER_WORD-bits));
- br->consumed_bits = bits;
- }
- return true;
- }
- else { /* br->consumed_bits == 0 */
- const brword word = br->buffer[br->consumed_words];
- if(bits < FLAC__BITS_PER_WORD) {
- *val = (FLAC__uint32)(word >> (FLAC__BITS_PER_WORD-bits));
- br->consumed_bits = bits;
- return true;
- }
- /* at this point bits == FLAC__BITS_PER_WORD == 32; because of previous assertions, it can't be larger */
- *val = (FLAC__uint32)word;
- crc16_update_word_(br, word);
- br->consumed_words++;
- return true;
- }
- }
- else {
- /* in this case we're starting our read at a partial tail word;
- * the reader has guaranteed that we have at least 'bits' bits
- * available to read, which makes this case simpler.
- */
- /* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
- if(br->consumed_bits) {
- /* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
- FLAC__ASSERT(br->consumed_bits + bits <= br->bytes*8);
- *val = (FLAC__uint32)((br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES >> br->consumed_bits)) >> (FLAC__BITS_PER_WORD-br->consumed_bits-bits));
- br->consumed_bits += bits;
- return true;
- }
- else {
- *val = (FLAC__uint32)(br->buffer[br->consumed_words] >> (FLAC__BITS_PER_WORD-bits));
- br->consumed_bits += bits;
- return true;
- }
- }
-}
-
-FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, unsigned bits)
-{
- FLAC__uint32 uval, mask;
- /* OPT: inline raw uint32 code here, or make into a macro if possible in the .h file */
- if(!FLAC__bitreader_read_raw_uint32(br, &uval, bits))
- return false;
- /* sign-extend *val assuming it is currently bits wide. */
- /* From: https://graphics.stanford.edu/~seander/bithacks.html#FixedSignExtend */
- mask = 1u << (bits - 1);
- *val = (uval ^ mask) - mask;
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, unsigned bits)
-{
- FLAC__uint32 hi, lo;
-
- if(bits > 32) {
- if(!FLAC__bitreader_read_raw_uint32(br, &hi, bits-32))
- return false;
- if(!FLAC__bitreader_read_raw_uint32(br, &lo, 32))
- return false;
- *val = hi;
- *val <<= 32;
- *val |= lo;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(br, &lo, bits))
- return false;
- *val = lo;
- }
- return true;
-}
-
-inline FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val)
-{
- FLAC__uint32 x8, x32 = 0;
-
- /* this doesn't need to be that fast as currently it is only used for vorbis comments */
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x32, 8))
- return false;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 8);
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 16);
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
- return false;
- x32 |= (x8 << 24);
-
- *val = x32;
- return true;
-}
-
-FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, unsigned bits)
-{
- /*
- * OPT: a faster implementation is possible but probably not that useful
- * since this is only called a couple of times in the metadata readers.
- */
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- if(bits > 0) {
- const unsigned n = br->consumed_bits & 7;
- unsigned m;
- FLAC__uint32 x;
-
- if(n != 0) {
- m = flac_min(8-n, bits);
- if(!FLAC__bitreader_read_raw_uint32(br, &x, m))
- return false;
- bits -= m;
- }
- m = bits / 8;
- if(m > 0) {
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(br, m))
- return false;
- bits %= 8;
- }
- if(bits > 0) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, bits))
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, unsigned nvals)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
-
- /* step 1: skip over partial head word to get word aligned */
- while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- nvals--;
- }
- if(0 == nvals)
- return true;
- /* step 2: skip whole words in chunks */
- while(nvals >= FLAC__BYTES_PER_WORD) {
- if(br->consumed_words < br->words) {
- br->consumed_words++;
- nvals -= FLAC__BYTES_PER_WORD;
- }
- else if(!bitreader_read_from_client_(br))
- return false;
- }
- /* step 3: skip any remainder from partial tail bytes */
- while(nvals) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- nvals--;
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, unsigned nvals)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
-
- /* step 1: read from partial head word to get word aligned */
- while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- *val++ = (FLAC__byte)x;
- nvals--;
- }
- if(0 == nvals)
- return true;
- /* step 2: read whole words in chunks */
- while(nvals >= FLAC__BYTES_PER_WORD) {
- if(br->consumed_words < br->words) {
- const brword word = br->buffer[br->consumed_words++];
-#if FLAC__BYTES_PER_WORD == 4
- val[0] = (FLAC__byte)(word >> 24);
- val[1] = (FLAC__byte)(word >> 16);
- val[2] = (FLAC__byte)(word >> 8);
- val[3] = (FLAC__byte)word;
-#elif FLAC__BYTES_PER_WORD == 8
- val[0] = (FLAC__byte)(word >> 56);
- val[1] = (FLAC__byte)(word >> 48);
- val[2] = (FLAC__byte)(word >> 40);
- val[3] = (FLAC__byte)(word >> 32);
- val[4] = (FLAC__byte)(word >> 24);
- val[5] = (FLAC__byte)(word >> 16);
- val[6] = (FLAC__byte)(word >> 8);
- val[7] = (FLAC__byte)word;
-#else
- for(x = 0; x < FLAC__BYTES_PER_WORD; x++)
- val[x] = (FLAC__byte)(word >> (8*(FLAC__BYTES_PER_WORD-x-1)));
-#endif
- val += FLAC__BYTES_PER_WORD;
- nvals -= FLAC__BYTES_PER_WORD;
- }
- else if(!bitreader_read_from_client_(br))
- return false;
- }
- /* step 3: read any remainder from partial tail bytes */
- while(nvals) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- *val++ = (FLAC__byte)x;
- nvals--;
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, unsigned *val)
-#if 0 /* slow but readable version */
-{
- unsigned bit;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- *val = 0;
- while(1) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- if(bit)
- break;
- else
- *val++;
- }
- return true;
-}
-#else
-{
- unsigned i;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- *val = 0;
- while(1) {
- while(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
- brword b = br->buffer[br->consumed_words] << br->consumed_bits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- *val += i;
- i++;
- br->consumed_bits += i;
- if(br->consumed_bits >= FLAC__BITS_PER_WORD) { /* faster way of testing if(br->consumed_bits == FLAC__BITS_PER_WORD) */
- crc16_update_word_(br, br->buffer[br->consumed_words]);
- br->consumed_words++;
- br->consumed_bits = 0;
- }
- return true;
- }
- else {
- *val += FLAC__BITS_PER_WORD - br->consumed_bits;
- crc16_update_word_(br, br->buffer[br->consumed_words]);
- br->consumed_words++;
- br->consumed_bits = 0;
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- /* at this point we've eaten up all the whole words; have to try
- * reading through any tail bytes before calling the read callback.
- * this is a repeat of the above logic adjusted for the fact we
- * don't have a whole word. note though if the client is feeding
- * us data a byte at a time (unlikely), br->consumed_bits may not
- * be zero.
- */
- if(br->bytes*8 > br->consumed_bits) {
- const unsigned end = br->bytes * 8;
- brword b = (br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES << (FLAC__BITS_PER_WORD-end))) << br->consumed_bits;
- if(b) {
- i = COUNT_ZERO_MSBS(b);
- *val += i;
- i++;
- br->consumed_bits += i;
- FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
- return true;
- }
- else {
- *val += end - br->consumed_bits;
- br->consumed_bits = end;
- FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
- /* didn't find stop bit yet, have to keep going... */
- }
- }
- if(!bitreader_read_from_client_(br))
- return false;
- }
-}
-#endif
-
-FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, unsigned parameter)
-{
- FLAC__uint32 lsbs = 0, msbs = 0;
- unsigned uval;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- FLAC__ASSERT(parameter <= 31);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter))
- return false;
-
- /* compose the value */
- uval = (msbs << parameter) | lsbs;
- if(uval & 1)
- *val = -((int)(uval >> 1)) - 1;
- else
- *val = (int)(uval >> 1);
-
- return true;
-}
-
-/* this is by far the most heavily used reader call. it ain't pretty but it's fast */
-FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter)
-{
- /* try and get br->consumed_words and br->consumed_bits into register;
- * must remember to flush them back to *br before calling other
- * bitreader functions that use them, and before returning */
- unsigned cwords, words, lsbs, msbs, x, y;
- unsigned ucbits; /* keep track of the number of unconsumed bits in word */
- brword b;
- int *val, *end;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
- FLAC__ASSERT(parameter < 32);
- /* the above two asserts also guarantee that the binary part never straddles more than 2 words, so we don't have to loop to read it */
-
- val = vals;
- end = vals + nvals;
-
- if(parameter == 0) {
- while(val < end) {
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- *val++ = (int)(msbs >> 1) ^ -(int)(msbs & 1);
- }
-
- return true;
- }
-
- FLAC__ASSERT(parameter > 0);
-
- cwords = br->consumed_words;
- words = br->words;
-
- /* if we've not consumed up to a partial tail word... */
- if(cwords >= words) {
- x = 0;
- goto process_tail;
- }
-
- ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
- b = br->buffer[cwords] << br->consumed_bits; /* keep unconsumed bits aligned to left */
-
- while(val < end) {
- /* read the unary MSBs and end bit */
- x = y = COUNT_ZERO_MSBS2(b);
- if(x == FLAC__BITS_PER_WORD) {
- x = ucbits;
- do {
- /* didn't find stop bit yet, have to keep going... */
- crc16_update_word_(br, br->buffer[cwords++]);
- if (cwords >= words)
- goto incomplete_msbs;
- b = br->buffer[cwords];
- y = COUNT_ZERO_MSBS2(b);
- x += y;
- } while(y == FLAC__BITS_PER_WORD);
- }
- b <<= y;
- b <<= 1; /* account for stop bit */
- ucbits = (ucbits - x - 1) % FLAC__BITS_PER_WORD;
- msbs = x;
-
- /* read the binary LSBs */
- x = (FLAC__uint32)(b >> (FLAC__BITS_PER_WORD - parameter)); /* parameter < 32, so we can cast to 32-bit unsigned */
- if(parameter <= ucbits) {
- ucbits -= parameter;
- b <<= parameter;
- } else {
- /* there are still bits left to read, they will all be in the next word */
- crc16_update_word_(br, br->buffer[cwords++]);
- if (cwords >= words)
- goto incomplete_lsbs;
- b = br->buffer[cwords];
- ucbits += FLAC__BITS_PER_WORD - parameter;
- x |= (FLAC__uint32)(b >> ucbits);
- b <<= FLAC__BITS_PER_WORD - ucbits;
- }
- lsbs = x;
-
- /* compose the value */
- x = (msbs << parameter) | lsbs;
- *val++ = (int)(x >> 1) ^ -(int)(x & 1);
-
- continue;
-
- /* at this point we've eaten up all the whole words */
-process_tail:
- do {
- if(0) {
-incomplete_msbs:
- br->consumed_bits = 0;
- br->consumed_words = cwords;
- }
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
- msbs += x;
- x = ucbits = 0;
-
- if(0) {
-incomplete_lsbs:
- br->consumed_bits = 0;
- br->consumed_words = cwords;
- }
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter - ucbits))
- return false;
- lsbs = x | lsbs;
-
- /* compose the value */
- x = (msbs << parameter) | lsbs;
- *val++ = (int)(x >> 1) ^ -(int)(x & 1);
- x = 0;
-
- cwords = br->consumed_words;
- words = br->words;
- ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
- b = br->buffer[cwords] << br->consumed_bits;
- } while(cwords >= words && val < end);
- }
-
- if(ucbits == 0 && cwords < words) {
- /* don't leave the head word with no unconsumed bits */
- crc16_update_word_(br, br->buffer[cwords++]);
- ucbits = FLAC__BITS_PER_WORD;
- }
-
- br->consumed_bits = FLAC__BITS_PER_WORD - ucbits;
- br->consumed_words = cwords;
-
- return true;
-}
-
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, unsigned parameter)
-{
- FLAC__uint32 lsbs = 0, msbs = 0;
- unsigned bit, uval, k;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- k = FLAC__bitmath_ilog2(parameter);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
- return false;
-
- if(parameter == 1u<<k) {
- /* compose the value */
- uval = (msbs << k) | lsbs;
- }
- else {
- unsigned d = (1 << (k+1)) - parameter;
- if(lsbs >= d) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- lsbs <<= 1;
- lsbs |= bit;
- lsbs -= d;
- }
- /* compose the value */
- uval = msbs * parameter + lsbs;
- }
-
- /* unfold unsigned to signed */
- if(uval & 1)
- *val = -((int)(uval >> 1)) - 1;
- else
- *val = (int)(uval >> 1);
-
- return true;
-}
-
-FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, unsigned *val, unsigned parameter)
-{
- FLAC__uint32 lsbs, msbs = 0;
- unsigned bit, k;
-
- FLAC__ASSERT(0 != br);
- FLAC__ASSERT(0 != br->buffer);
-
- k = FLAC__bitmath_ilog2(parameter);
-
- /* read the unary MSBs and end bit */
- if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
- return false;
-
- /* read the binary LSBs */
- if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
- return false;
-
- if(parameter == 1u<<k) {
- /* compose the value */
- *val = (msbs << k) | lsbs;
- }
- else {
- unsigned d = (1 << (k+1)) - parameter;
- if(lsbs >= d) {
- if(!FLAC__bitreader_read_bit(br, &bit))
- return false;
- lsbs <<= 1;
- lsbs |= bit;
- lsbs -= d;
- }
- /* compose the value */
- *val = msbs * parameter + lsbs;
- }
-
- return true;
-}
-#endif /* UNUSED */
-
-/* on return, if *val == 0xffffffff then the utf-8 sequence was invalid, but the return value will be true */
-FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, unsigned *rawlen)
-{
- FLAC__uint32 v = 0;
- FLAC__uint32 x;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80)) { /* 0xxxxxxx */
- v = x;
- i = 0;
- }
- else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
- v = x & 0x1F;
- i = 1;
- }
- else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
- v = x & 0x0F;
- i = 2;
- }
- else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
- v = x & 0x07;
- i = 3;
- }
- else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
- v = x & 0x03;
- i = 4;
- }
- else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
- v = x & 0x01;
- i = 5;
- }
- else {
- *val = 0xffffffff;
- return true;
- }
- for( ; i; i--) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
- *val = 0xffffffff;
- return true;
- }
- v <<= 6;
- v |= (x & 0x3F);
- }
- *val = v;
- return true;
-}
-
-/* on return, if *val == 0xffffffffffffffff then the utf-8 sequence was invalid, but the return value will be true */
-FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, unsigned *rawlen)
-{
- FLAC__uint64 v = 0;
- FLAC__uint32 x;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80)) { /* 0xxxxxxx */
- v = x;
- i = 0;
- }
- else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
- v = x & 0x1F;
- i = 1;
- }
- else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
- v = x & 0x0F;
- i = 2;
- }
- else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
- v = x & 0x07;
- i = 3;
- }
- else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
- v = x & 0x03;
- i = 4;
- }
- else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
- v = x & 0x01;
- i = 5;
- }
- else if(x & 0xFE && !(x & 0x01)) { /* 11111110 */
- v = 0;
- i = 6;
- }
- else {
- *val = FLAC__U64L(0xffffffffffffffff);
- return true;
- }
- for( ; i; i--) {
- if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
- return false;
- if(raw)
- raw[(*rawlen)++] = (FLAC__byte)x;
- if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
- *val = FLAC__U64L(0xffffffffffffffff);
- return true;
- }
- v <<= 6;
- v |= (x & 0x3F);
- }
- *val = v;
- return true;
-}
-
-/* These functions are declared inline in this file but are also callable as
- * externs from elsewhere.
- * According to the C99 spec, section 6.7.4, simply providing a function
- * prototype in a header file without 'inline' and making the function inline
- * in this file should be sufficient.
- * Unfortunately, the Microsoft VS compiler doesn't pick them up externally. To
- * fix that we add extern declarations here.
- */
-extern FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
-extern unsigned FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
-extern unsigned FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
-extern FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val);
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "private/bitwriter.h"
-#include "private/crc.h"
-#include "private/macros.h"
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-#include "share/compat.h"
-#include "share/endswap.h"
-
-/* Things should be fastest when this matches the machine word size */
-/* WATCHOUT: if you change this you must also change the following #defines down to SWAP_BE_WORD_TO_HOST below to match */
-/* WATCHOUT: there are a few places where the code will not work unless bwword is >= 32 bits wide */
-
-#if (ENABLE_64_BIT_WORDS == 0)
-
-typedef FLAC__uint32 bwword;
-#define FLAC__BYTES_PER_WORD 4 /* sizeof bwword */
-#define FLAC__BITS_PER_WORD 32
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_32(x)
-#endif
-
-#else
-
-typedef FLAC__uint64 bwword;
-#define FLAC__BYTES_PER_WORD 8 /* sizeof bwword */
-#define FLAC__BITS_PER_WORD 64
-/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
-#if WORDS_BIGENDIAN
-#define SWAP_BE_WORD_TO_HOST(x) (x)
-#else
-#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_64(x)
-#endif
-
-#endif
-
-/*
- * The default capacity here doesn't matter too much. The buffer always grows
- * to hold whatever is written to it. Usually the encoder will stop adding at
- * a frame or metadata block, then write that out and clear the buffer for the
- * next one.
- */
-static const unsigned FLAC__BITWRITER_DEFAULT_CAPACITY = 32768u / sizeof(bwword); /* size in words */
-/* When growing, increment 4K at a time */
-static const unsigned FLAC__BITWRITER_DEFAULT_INCREMENT = 4096u / sizeof(bwword); /* size in words */
-
-#define FLAC__WORDS_TO_BITS(words) ((words) * FLAC__BITS_PER_WORD)
-#define FLAC__TOTAL_BITS(bw) (FLAC__WORDS_TO_BITS((bw)->words) + (bw)->bits)
-
-struct FLAC__BitWriter {
- bwword *buffer;
- bwword accum; /* accumulator; bits are right-justified; when full, accum is appended to buffer */
- unsigned capacity; /* capacity of buffer in words */
- unsigned words; /* # of complete words in buffer */
- unsigned bits; /* # of used bits in accum */
-};
-
-/* * WATCHOUT: The current implementation only grows the buffer. */
-#ifndef __SUNPRO_C
-static
-#endif
-FLAC__bool bitwriter_grow_(FLAC__BitWriter *bw, unsigned bits_to_add)
-{
- unsigned new_capacity;
- bwword *new_buffer;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- /* calculate total words needed to store 'bits_to_add' additional bits */
- new_capacity = bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD);
-
- /* it's possible (due to pessimism in the growth estimation that
- * leads to this call) that we don't actually need to grow
- */
- if(bw->capacity >= new_capacity)
- return true;
-
- /* round up capacity increase to the nearest FLAC__BITWRITER_DEFAULT_INCREMENT */
- if((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT)
- new_capacity += FLAC__BITWRITER_DEFAULT_INCREMENT - ((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
- /* make sure we got everything right */
- FLAC__ASSERT(0 == (new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
- FLAC__ASSERT(new_capacity > bw->capacity);
- FLAC__ASSERT(new_capacity >= bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD));
-
- new_buffer = safe_realloc_mul_2op_(bw->buffer, sizeof(bwword), /*times*/new_capacity);
- if(new_buffer == 0)
- return false;
- bw->buffer = new_buffer;
- bw->capacity = new_capacity;
- return true;
-}
-
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-
-FLAC__BitWriter *FLAC__bitwriter_new(void)
-{
- FLAC__BitWriter *bw = calloc(1, sizeof(FLAC__BitWriter));
- /* note that calloc() sets all members to 0 for us */
- return bw;
-}
-
-void FLAC__bitwriter_delete(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- FLAC__bitwriter_free(bw);
- free(bw);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- bw->words = bw->bits = 0;
- bw->capacity = FLAC__BITWRITER_DEFAULT_CAPACITY;
- bw->buffer = malloc(sizeof(bwword) * bw->capacity);
- if(bw->buffer == 0)
- return false;
-
- return true;
-}
-
-void FLAC__bitwriter_free(FLAC__BitWriter *bw)
-{
- FLAC__ASSERT(0 != bw);
-
- if(0 != bw->buffer)
- free(bw->buffer);
- bw->buffer = 0;
- bw->capacity = 0;
- bw->words = bw->bits = 0;
-}
-
-void FLAC__bitwriter_clear(FLAC__BitWriter *bw)
-{
- bw->words = bw->bits = 0;
-}
-
-void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out)
-{
- unsigned i, j;
- if(bw == 0) {
- fprintf(out, "bitwriter is NULL\n");
- }
- else {
- fprintf(out, "bitwriter: capacity=%u words=%u bits=%u total_bits=%u\n", bw->capacity, bw->words, bw->bits, FLAC__TOTAL_BITS(bw));
-
- for(i = 0; i < bw->words; i++) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < FLAC__BITS_PER_WORD; j++)
- fprintf(out, "%01u", bw->buffer[i] & ((bwword)1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- if(bw->bits > 0) {
- fprintf(out, "%08X: ", i);
- for(j = 0; j < bw->bits; j++)
- fprintf(out, "%01u", bw->accum & ((bwword)1 << (bw->bits-j-1)) ? 1:0);
- fprintf(out, "\n");
- }
- }
-}
-
-FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
-
- if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
- return false;
-
- *crc = (FLAC__uint16)FLAC__crc16(buffer, bytes);
- FLAC__bitwriter_release_buffer(bw);
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
-
- if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
- return false;
-
- *crc = FLAC__crc8(buffer, bytes);
- FLAC__bitwriter_release_buffer(bw);
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw)
-{
- return ((bw->bits & 7) == 0);
-}
-
-unsigned FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw)
-{
- return FLAC__TOTAL_BITS(bw);
-}
-
-FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes)
-{
- FLAC__ASSERT((bw->bits & 7) == 0);
- /* double protection */
- if(bw->bits & 7)
- return false;
- /* if we have bits in the accumulator we have to flush those to the buffer first */
- if(bw->bits) {
- FLAC__ASSERT(bw->words <= bw->capacity);
- if(bw->words == bw->capacity && !bitwriter_grow_(bw, FLAC__BITS_PER_WORD))
- return false;
- /* append bits as complete word to buffer, but don't change bw->accum or bw->bits */
- bw->buffer[bw->words] = SWAP_BE_WORD_TO_HOST(bw->accum << (FLAC__BITS_PER_WORD-bw->bits));
- }
- /* now we can just return what we have */
- *buffer = (FLAC__byte*)bw->buffer;
- *bytes = (FLAC__BYTES_PER_WORD * bw->words) + (bw->bits >> 3);
- return true;
-}
-
-void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw)
-{
- /* nothing to do. in the future, strict checking of a 'writer-is-in-
- * get-mode' flag could be added everywhere and then cleared here
- */
- (void)bw;
-}
-
-inline FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, unsigned bits)
-{
- unsigned n;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- if(bits == 0)
- return true;
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
- return false;
- /* first part gets to word alignment */
- if(bw->bits) {
- n = flac_min(FLAC__BITS_PER_WORD - bw->bits, bits);
- bw->accum <<= n;
- bits -= n;
- bw->bits += n;
- if(bw->bits == FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->bits = 0;
- }
- else
- return true;
- }
- /* do whole words */
- while(bits >= FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = 0;
- bits -= FLAC__BITS_PER_WORD;
- }
- /* do any leftovers */
- if(bits > 0) {
- bw->accum = 0;
- bw->bits = bits;
- }
- return true;
-}
-
-static inline FLAC__bool FLAC__bitwriter_write_raw_uint32_nocheck(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits)
-{
- register unsigned left;
-
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- if(bw == 0 || bw->buffer == 0)
- return false;
-
- if (bits > 32)
- return false;
-
- if(bits == 0)
- return true;
-
- FLAC__ASSERT((bits == 32) || (val>>bits == 0));
-
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
- return false;
-
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(bits < left) {
- bw->accum <<= bits;
- bw->accum |= val;
- bw->bits += bits;
- }
- else if(bw->bits) { /* WATCHOUT: if bw->bits == 0, left==FLAC__BITS_PER_WORD and bw->accum<<=left is a NOP instead of setting to 0 */
- bw->accum <<= left;
- bw->accum |= val >> (bw->bits = bits - left);
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->accum = val; /* unused top bits can contain garbage */
- }
- else { /* at this point bits == FLAC__BITS_PER_WORD == 32 and bw->bits == 0 */
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST((bwword)val);
- }
-
- return true;
-}
-
-inline FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits)
-{
- /* check that unused bits are unset */
- if((bits < 32) && (val>>bits != 0))
- return false;
-
- return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, bits);
-}
-
-inline FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, unsigned bits)
-{
- /* zero-out unused bits */
- if(bits < 32)
- val &= (~(0xffffffff << bits));
-
- return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, bits);
-}
-
-inline FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, unsigned bits)
-{
- /* this could be a little faster but it's not used for much */
- if(bits > 32) {
- return
- FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)(val>>32), bits-32) &&
- FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 32);
- }
- else
- return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, bits);
-}
-
-inline FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val)
-{
- /* this doesn't need to be that fast as currently it is only used for vorbis comments */
-
- if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>8) & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>16) & 0xff, 8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val>>24, 8))
- return false;
-
- return true;
-}
-
-inline FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], unsigned nvals)
-{
- unsigned i;
-
- /* this could be faster but currently we don't need it to be since it's only used for writing metadata */
- for(i = 0; i < nvals; i++) {
- if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)(vals[i]), 8))
- return false;
- }
-
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, unsigned val)
-{
- if(val < 32)
- return FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, ++val);
- else
- return
- FLAC__bitwriter_write_zeroes(bw, val) &&
- FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, 1);
-}
-
-unsigned FLAC__bitwriter_rice_bits(FLAC__int32 val, unsigned parameter)
-{
- FLAC__uint32 uval;
-
- FLAC__ASSERT(parameter < 32);
-
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = val;
- uval <<= 1;
- uval ^= (val>>31);
-
- return 1 + parameter + (uval >> parameter);
-}
-
-#if 0 /* UNUSED */
-unsigned FLAC__bitwriter_golomb_bits_signed(int val, unsigned parameter)
-{
- unsigned bits, msbs, uval;
- unsigned k;
-
- FLAC__ASSERT(parameter > 0);
-
- /* fold signed to unsigned */
- if(val < 0)
- uval = (unsigned)(((-(++val)) << 1) + 1);
- else
- uval = (unsigned)(val << 1);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- bits = 1 + k + msbs;
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
-
- bits = 1 + q + k;
- if(r >= d)
- bits++;
- }
- return bits;
-}
-
-unsigned FLAC__bitwriter_golomb_bits_unsigned(unsigned uval, unsigned parameter)
-{
- unsigned bits, msbs;
- unsigned k;
-
- FLAC__ASSERT(parameter > 0);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- bits = 1 + k + msbs;
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
-
- bits = 1 + q + k;
- if(r >= d)
- bits++;
- }
- return bits;
-}
-#endif /* UNUSED */
-
-FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, unsigned parameter)
-{
- unsigned total_bits, interesting_bits, msbs;
- FLAC__uint32 uval, pattern;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter < 32);
-
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = val;
- uval <<= 1;
- uval ^= (val>>31);
-
- msbs = uval >> parameter;
- interesting_bits = 1 + parameter;
- total_bits = interesting_bits + msbs;
- pattern = 1 << parameter; /* the unary end bit */
- pattern |= (uval & ((1<<parameter)-1)); /* the binary LSBs */
-
- if(total_bits <= 32)
- return FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits);
- else
- return
- FLAC__bitwriter_write_zeroes(bw, msbs) && /* write the unary MSBs */
- FLAC__bitwriter_write_raw_uint32(bw, pattern, interesting_bits); /* write the unary end bit and binary LSBs */
-}
-
-FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, unsigned nvals, unsigned parameter)
-{
- const FLAC__uint32 mask1 = (FLAC__uint32)0xffffffff << parameter; /* we val|=mask1 to set the stop bit above it... */
- const FLAC__uint32 mask2 = (FLAC__uint32)0xffffffff >> (31-parameter); /* ...then mask off the bits above the stop bit with val&=mask2 */
- FLAC__uint32 uval;
- unsigned left;
- const unsigned lsbits = 1 + parameter;
- unsigned msbits, total_bits;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter < 31);
- /* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
- FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
-
- while(nvals) {
- /* fold signed to unsigned; actual formula is: negative(v)? -2v-1 : 2v */
- uval = *vals;
- uval <<= 1;
- uval ^= (*vals>>31);
-
- msbits = uval >> parameter;
- total_bits = lsbits + msbits;
-
- if(bw->bits && bw->bits + total_bits < FLAC__BITS_PER_WORD) { /* i.e. if the whole thing fits in the current bwword */
- /* ^^^ if bw->bits is 0 then we may have filled the buffer and have no free bwword to work in */
- bw->bits += total_bits;
- uval |= mask1; /* set stop bit */
- uval &= mask2; /* mask off unused top bits */
- bw->accum <<= total_bits;
- bw->accum |= uval;
- }
- else {
- /* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+msbits+lsbits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
- /* OPT: pessimism may cause flurry of false calls to grow_ which eat up all savings before it */
- if(bw->capacity <= bw->words + bw->bits + msbits + 1 /* lsbits always fit in 1 bwword */ && !bitwriter_grow_(bw, total_bits))
- return false;
-
- if(msbits) {
- /* first part gets to word alignment */
- if(bw->bits) {
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(msbits < left) {
- bw->accum <<= msbits;
- bw->bits += msbits;
- goto break1;
- }
- else {
- bw->accum <<= left;
- msbits -= left;
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->bits = 0;
- }
- }
- /* do whole words */
- while(msbits >= FLAC__BITS_PER_WORD) {
- bw->buffer[bw->words++] = 0;
- msbits -= FLAC__BITS_PER_WORD;
- }
- /* do any leftovers */
- if(msbits > 0) {
- bw->accum = 0;
- bw->bits = msbits;
- }
- }
-break1:
- uval |= mask1; /* set stop bit */
- uval &= mask2; /* mask off unused top bits */
-
- left = FLAC__BITS_PER_WORD - bw->bits;
- if(lsbits < left) {
- bw->accum <<= lsbits;
- bw->accum |= uval;
- bw->bits += lsbits;
- }
- else {
- /* if bw->bits == 0, left==FLAC__BITS_PER_WORD which will always
- * be > lsbits (because of previous assertions) so it would have
- * triggered the (lsbits<left) case above.
- */
- FLAC__ASSERT(bw->bits);
- FLAC__ASSERT(left < FLAC__BITS_PER_WORD);
- bw->accum <<= left;
- bw->accum |= uval >> (bw->bits = lsbits - left);
- bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
- bw->accum = uval; /* unused top bits can contain garbage */
- }
- }
- vals++;
- nvals--;
- }
- return true;
-}
-
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, unsigned parameter)
-{
- unsigned total_bits, msbs, uval;
- unsigned k;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter > 0);
-
- /* fold signed to unsigned */
- if(val < 0)
- uval = (unsigned)(((-(++val)) << 1) + 1);
- else
- uval = (unsigned)(val << 1);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- unsigned pattern;
-
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- total_bits = 1 + k + msbs;
- pattern = 1 << k; /* the unary end bit */
- pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
-
- if(total_bits <= 32) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
- return false;
- }
- else {
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, msbs))
- return false;
- /* write the unary end bit and binary LSBs */
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
- return false;
- }
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, q))
- return false;
- /* write the unary end bit */
- if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
- return false;
- /* write the binary LSBs */
- if(r >= d) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
- return false;
- }
- }
- return true;
-}
-
-FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, unsigned uval, unsigned parameter)
-{
- unsigned total_bits, msbs;
- unsigned k;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
- FLAC__ASSERT(parameter > 0);
-
- k = FLAC__bitmath_ilog2(parameter);
- if(parameter == 1u<<k) {
- unsigned pattern;
-
- FLAC__ASSERT(k <= 30);
-
- msbs = uval >> k;
- total_bits = 1 + k + msbs;
- pattern = 1 << k; /* the unary end bit */
- pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
-
- if(total_bits <= 32) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
- return false;
- }
- else {
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, msbs))
- return false;
- /* write the unary end bit and binary LSBs */
- if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
- return false;
- }
- }
- else {
- unsigned q, r, d;
-
- d = (1 << (k+1)) - parameter;
- q = uval / parameter;
- r = uval - (q * parameter);
- /* write the unary MSBs */
- if(!FLAC__bitwriter_write_zeroes(bw, q))
- return false;
- /* write the unary end bit */
- if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
- return false;
- /* write the binary LSBs */
- if(r >= d) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
- return false;
- }
- }
- return true;
-}
-#endif /* UNUSED */
-
-FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val)
-{
- FLAC__bool ok = 1;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- if((val & 0x80000000) != 0) /* this version only handles 31 bits */
- return false;
-
- if(val < 0x80) {
- return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, 8);
- }
- else if(val < 0x800) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (val>>6), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x10000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (val>>12), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x200000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (val>>18), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
- }
- else if(val < 0x4000000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (val>>24), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
- }
- else {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (val>>30), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
- }
-
- return ok;
-}
-
-FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val)
-{
- FLAC__bool ok = 1;
-
- FLAC__ASSERT(0 != bw);
- FLAC__ASSERT(0 != bw->buffer);
-
- if((val & FLAC__U64L(0xFFFFFFF000000000)) != 0) /* this version only handles 36 bits */
- return false;
-
- if(val < 0x80) {
- return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 8);
- }
- else if(val < 0x800) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (FLAC__uint32)(val>>6), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x10000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (FLAC__uint32)(val>>12), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x200000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (FLAC__uint32)(val>>18), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x4000000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (FLAC__uint32)(val>>24), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else if(val < 0x80000000) {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (FLAC__uint32)(val>>30), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
- else {
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFE, 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>30)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
- ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
- }
-
- return ok;
-}
-
-FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw)
-{
- /* 0-pad to byte boundary */
- if(bw->bits & 7u)
- return FLAC__bitwriter_write_zeroes(bw, 8 - (bw->bits & 7u));
- else
- return true;
-}
-
-/* These functions are declared inline in this file but are also callable as
- * externs from elsewhere.
- * According to the C99 spec, section 6.7.4, simply providing a function
- * prototype in a header file without 'inline' and making the function inline
- * in this file should be sufficient.
- * Unfortunately, the Microsoft VS compiler doesn't pick them up externally. To
- * fix that we add extern declarations here.
- */
-extern FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, unsigned bits);
-extern FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits);
-extern FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, unsigned bits);
-extern FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, unsigned bits);
-extern FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val);
-extern FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], unsigned nvals);
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-#include "share/compat.h"
-#include <stdlib.h>
-#include <string.h>
-
-#if defined(_MSC_VER)
-# include <intrin.h> /* for __cpuid() and _xgetbv() */
-#endif
-
-#if defined __GNUC__ && defined HAVE_CPUID_H
-# include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
-#endif
-
-#ifdef DEBUG
-#include <stdio.h>
-
-#define dfprintf fprintf
-#else
-/* This is bad practice, it should be a static void empty function */
-#define dfprintf(file, format, ...)
-#endif
-
-
-#if defined FLAC__CPU_IA32
-/* these are flags in EDX of CPUID AX=00000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_MMX = 0x00800000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE = 0x02000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE2 = 0x04000000;
-#endif
-
-#if FLAC__HAS_X86INTRIN || FLAC__AVX_SUPPORTED
-/* these are flags in ECX of CPUID AX=00000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE3 = 0x00000001;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSSE3 = 0x00000200;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE41 = 0x00080000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_SSE42 = 0x00100000;
-
-/* these are flags in ECX of CPUID AX=00000001 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_OSXSAVE = 0x08000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX = 0x10000000;
-static const unsigned FLAC__CPUINFO_IA32_CPUID_FMA = 0x00001000;
-/* these are flags in EBX of CPUID AX=00000007 */
-static const unsigned FLAC__CPUINFO_IA32_CPUID_AVX2 = 0x00000020;
-#endif
-
-#if defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64
-static uint32_t
-cpu_xgetbv_x86(void)
-{
-#if (defined _MSC_VER || defined __INTEL_COMPILER) && FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED
- return (uint32_t)_xgetbv(0);
-#elif defined __GNUC__
- uint32_t lo, hi;
- asm volatile (".byte 0x0f, 0x01, 0xd0" : "=a"(lo), "=d"(hi) : "c" (0));
- return lo;
-#else
- return 0;
-#endif
-}
-#endif
-
-static void
-ia32_cpu_info (FLAC__CPUInfo *info)
-{
-#if !defined FLAC__CPU_IA32
- (void) info;
-#else
- FLAC__bool ia32_osxsave = false;
- FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
-
-#if !defined FLAC__NO_ASM && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN)
- info->use_asm = true; /* we assume a minimum of 80386 with FLAC__CPU_IA32 */
-#if defined FLAC__HAS_NASM
- if(!FLAC__cpu_have_cpuid_asm_ia32())
- return;
-#endif
- /* http://www.sandpile.org/x86/cpuid.htm */
- if (FLAC__HAS_X86INTRIN) {
- FLAC__cpu_info_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- info->ia32.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
- FLAC__cpu_info_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- }
- else {
- FLAC__cpu_info_asm_ia32(&flags_edx, &flags_ecx);
- }
-
- info->ia32.cmov = (flags_edx & FLAC__CPUINFO_IA32_CPUID_CMOV ) ? true : false;
- info->ia32.mmx = (flags_edx & FLAC__CPUINFO_IA32_CPUID_MMX ) ? true : false;
- info->ia32.sse = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE ) ? true : false;
- info->ia32.sse2 = (flags_edx & FLAC__CPUINFO_IA32_CPUID_SSE2 ) ? true : false;
- info->ia32.sse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE3 ) ? true : false;
- info->ia32.ssse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSSE3) ? true : false;
- info->ia32.sse41 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE41) ? true : false;
- info->ia32.sse42 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE42) ? true : false;
-
- if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
- ia32_osxsave = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_OSXSAVE) ? true : false;
- info->ia32.avx = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_AVX ) ? true : false;
- info->ia32.fma = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_FMA ) ? true : false;
- FLAC__cpu_info_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- info->ia32.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
- }
-
- dfprintf(stderr, "CPU info (IA-32):\n");
- dfprintf(stderr, " CMOV ....... %c\n", info->ia32.cmov ? 'Y' : 'n');
- dfprintf(stderr, " MMX ........ %c\n", info->ia32.mmx ? 'Y' : 'n');
- dfprintf(stderr, " SSE ........ %c\n", info->ia32.sse ? 'Y' : 'n');
- dfprintf(stderr, " SSE2 ....... %c\n", info->ia32.sse2 ? 'Y' : 'n');
- dfprintf(stderr, " SSE3 ....... %c\n", info->ia32.sse3 ? 'Y' : 'n');
- dfprintf(stderr, " SSSE3 ...... %c\n", info->ia32.ssse3 ? 'Y' : 'n');
- dfprintf(stderr, " SSE41 ...... %c\n", info->ia32.sse41 ? 'Y' : 'n');
- dfprintf(stderr, " SSE42 ...... %c\n", info->ia32.sse42 ? 'Y' : 'n');
-
- if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
- dfprintf(stderr, " AVX ........ %c\n", info->ia32.avx ? 'Y' : 'n');
- dfprintf(stderr, " FMA ........ %c\n", info->ia32.fma ? 'Y' : 'n');
- dfprintf(stderr, " AVX2 ....... %c\n", info->ia32.avx2 ? 'Y' : 'n');
- }
-
- /*
- * now have to check for OS support of AVX instructions
- */
- if (!FLAC__HAS_X86INTRIN || !info->ia32.avx || !ia32_osxsave || (cpu_xgetbv_x86() & 0x6) != 0x6) {
- /* no OS AVX support */
- info->ia32.avx = false;
- info->ia32.avx2 = false;
- info->ia32.fma = false;
- }
-
- if (FLAC__HAS_X86INTRIN && FLAC__AVX_SUPPORTED) {
- dfprintf(stderr, " AVX OS sup . %c\n", info->ia32.avx ? 'Y' : 'n');
- }
-#else
- info->use_asm = false;
-#endif
-#endif
-}
-
-static void
-x86_64_cpu_info (FLAC__CPUInfo *info)
-{
-#if !defined FLAC__NO_ASM && FLAC__HAS_X86INTRIN
- FLAC__bool x86_osxsave = false;
- FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
-
- info->use_asm = true;
-
- /* http://www.sandpile.org/x86/cpuid.htm */
- FLAC__cpu_info_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- info->x86.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
- FLAC__cpu_info_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- info->x86.sse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE3 ) ? true : false;
- info->x86.ssse3 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSSE3) ? true : false;
- info->x86.sse41 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE41) ? true : false;
- info->x86.sse42 = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_SSE42) ? true : false;
-
- if (FLAC__AVX_SUPPORTED) {
- x86_osxsave = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_OSXSAVE) ? true : false;
- info->x86.avx = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_AVX ) ? true : false;
- info->x86.fma = (flags_ecx & FLAC__CPUINFO_IA32_CPUID_FMA ) ? true : false;
- FLAC__cpu_info_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
- info->x86.avx2 = (flags_ebx & FLAC__CPUINFO_IA32_CPUID_AVX2 ) ? true : false;
- }
-
- dfprintf(stderr, "CPU info (x86-64):\n");
- dfprintf(stderr, " SSE3 ....... %c\n", info->x86.sse3 ? 'Y' : 'n');
- dfprintf(stderr, " SSSE3 ...... %c\n", info->x86.ssse3 ? 'Y' : 'n');
- dfprintf(stderr, " SSE41 ...... %c\n", info->x86.sse41 ? 'Y' : 'n');
- dfprintf(stderr, " SSE42 ...... %c\n", info->x86.sse42 ? 'Y' : 'n');
-
- if (FLAC__AVX_SUPPORTED) {
- dfprintf(stderr, " AVX ........ %c\n", info->x86.avx ? 'Y' : 'n');
- dfprintf(stderr, " FMA ........ %c\n", info->x86.fma ? 'Y' : 'n');
- dfprintf(stderr, " AVX2 ....... %c\n", info->x86.avx2 ? 'Y' : 'n');
- }
-
- /*
- * now have to check for OS support of AVX instructions
- */
- if (!info->x86.avx || !x86_osxsave || (cpu_xgetbv_x86() & 0x6) != 0x6) {
- /* no OS AVX support */
- info->x86.avx = false;
- info->x86.avx2 = false;
- info->x86.fma = false;
- }
-
- if (FLAC__AVX_SUPPORTED) {
- dfprintf(stderr, " AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
- }
-#else
- /* Silence compiler warnings. */
- (void) info;
-#if defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64
- if (0) cpu_xgetbv_x86 ();
-#endif
-#endif
-}
-
-void FLAC__cpu_info (FLAC__CPUInfo *info)
-{
- memset(info, 0, sizeof(*info));
-
-#ifdef FLAC__CPU_IA32
- info->type = FLAC__CPUINFO_TYPE_IA32;
-#elif defined FLAC__CPU_X86_64
- info->type = FLAC__CPUINFO_TYPE_X86_64;
-#else
- info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
- info->use_asm = false;
-#endif
-
- switch (info->type) {
- case FLAC__CPUINFO_TYPE_IA32:
- ia32_cpu_info (info);
- break;
- case FLAC__CPUINFO_TYPE_X86_64:
- x86_64_cpu_info (info);
- break;
- default:
- info->use_asm = false;
- break;
- }
-}
-
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-
-void FLAC__cpu_info_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx)
-{
-#if defined _MSC_VER || defined __INTEL_COMPILER
- int cpuinfo[4];
- int ext = level & 0x80000000;
- __cpuid(cpuinfo, ext);
- if((unsigned)cpuinfo[0] >= level) {
-#if FLAC__AVX_SUPPORTED
- __cpuidex(cpuinfo, ext, 0); /* for AVX2 detection */
-#else
- __cpuid(cpuinfo, ext); /* some old compilers don't support __cpuidex */
-#endif
-
- *eax = cpuinfo[0]; *ebx = cpuinfo[1]; *ecx = cpuinfo[2]; *edx = cpuinfo[3];
-
- return;
- }
-#elif defined __GNUC__ && defined HAVE_CPUID_H
- FLAC__uint32 ext = level & 0x80000000;
- __cpuid(ext, *eax, *ebx, *ecx, *edx);
- if (*eax >= level) {
- __cpuid_count(level, 0, *eax, *ebx, *ecx, *edx);
-
- return;
- }
-#endif
- *eax = *ebx = *ecx = *edx = 0;
-}
-
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/crc.h"
-
-/* CRC-8, poly = x^8 + x^2 + x^1 + x^0, init = 0 */
-
-FLAC__byte const FLAC__crc8_table[256] = {
- 0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15,
- 0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
- 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
- 0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
- 0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5,
- 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
- 0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85,
- 0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
- 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
- 0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
- 0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2,
- 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
- 0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32,
- 0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
- 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
- 0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
- 0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C,
- 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
- 0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC,
- 0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
- 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
- 0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
- 0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C,
- 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
- 0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B,
- 0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
- 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
- 0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
- 0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB,
- 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
- 0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB,
- 0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
-};
-
-/* CRC-16, poly = x^16 + x^15 + x^2 + x^0, init = 0 */
-
-unsigned const FLAC__crc16_table[256] = {
- 0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
- 0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
- 0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
- 0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
- 0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
- 0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
- 0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
- 0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
- 0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
- 0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
- 0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
- 0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
- 0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
- 0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
- 0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
- 0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
- 0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
- 0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
- 0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
- 0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
- 0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
- 0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
- 0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
- 0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
- 0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
- 0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
- 0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
- 0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
- 0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
- 0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
- 0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
- 0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
-};
-
-
-void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc)
-{
- *crc = FLAC__crc8_table[*crc ^ data];
-}
-
-void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc)
-{
- while(len--)
- *crc = FLAC__crc8_table[*crc ^ *data++];
-}
-
-FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len)
-{
- FLAC__uint8 crc = 0;
-
- while(len--)
- crc = FLAC__crc8_table[crc ^ *data++];
-
- return crc;
-}
-
-unsigned FLAC__crc16(const FLAC__byte *data, unsigned len)
-{
- unsigned crc = 0;
-
- while(len--)
- crc = ((crc<<8) ^ FLAC__crc16_table[(crc>>8) ^ *data++]) & 0xffff;
-
- return crc;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-#include <string.h>
-#include "share/compat.h"
-#include "private/bitmath.h"
-#include "private/fixed.h"
-#include "private/macros.h"
-#include "FLAC/assert.h"
-
-#ifdef local_abs
-#undef local_abs
-#endif
-#define local_abs(x) ((unsigned)((x)<0? -(x) : (x)))
-
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
-/* rbps stands for residual bits per sample
- *
- * (ln(2) * err)
- * rbps = log (-----------)
- * 2 ( n )
- */
-static FLAC__fixedpoint local__compute_rbps_integerized(FLAC__uint32 err, FLAC__uint32 n)
-{
- FLAC__uint32 rbps;
- unsigned bits; /* the number of bits required to represent a number */
- int fracbits; /* the number of bits of rbps that comprise the fractional part */
-
- FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
- FLAC__ASSERT(err > 0);
- FLAC__ASSERT(n > 0);
-
- FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
- if(err <= n)
- return 0;
- /*
- * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
- * These allow us later to know we won't lose too much precision in the
- * fixed-point division (err<<fracbits)/n.
- */
-
- fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2(err)+1);
-
- err <<= fracbits;
- err /= n;
- /* err now holds err/n with fracbits fractional bits */
-
- /*
- * Whittle err down to 16 bits max. 16 significant bits is enough for
- * our purposes.
- */
- FLAC__ASSERT(err > 0);
- bits = FLAC__bitmath_ilog2(err)+1;
- if(bits > 16) {
- err >>= (bits-16);
- fracbits -= (bits-16);
- }
- rbps = (FLAC__uint32)err;
-
- /* Multiply by fixed-point version of ln(2), with 16 fractional bits */
- rbps *= FLAC__FP_LN2;
- fracbits += 16;
- FLAC__ASSERT(fracbits >= 0);
-
- /* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
- {
- const int f = fracbits & 3;
- if(f) {
- rbps >>= f;
- fracbits -= f;
- }
- }
-
- rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
-
- if(rbps == 0)
- return 0;
-
- /*
- * The return value must have 16 fractional bits. Since the whole part
- * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
- * must be >= -3, these assertion allows us to be able to shift rbps
- * left if necessary to get 16 fracbits without losing any bits of the
- * whole part of rbps.
- *
- * There is a slight chance due to accumulated error that the whole part
- * will require 6 bits, so we use 6 in the assertion. Really though as
- * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
- */
- FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
- FLAC__ASSERT(fracbits >= -3);
-
- /* now shift the decimal point into place */
- if(fracbits < 16)
- return rbps << (16-fracbits);
- else if(fracbits > 16)
- return rbps >> (fracbits-16);
- else
- return rbps;
-}
-
-static FLAC__fixedpoint local__compute_rbps_wide_integerized(FLAC__uint64 err, FLAC__uint32 n)
-{
- FLAC__uint32 rbps;
- unsigned bits; /* the number of bits required to represent a number */
- int fracbits; /* the number of bits of rbps that comprise the fractional part */
-
- FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
- FLAC__ASSERT(err > 0);
- FLAC__ASSERT(n > 0);
-
- FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
- if(err <= n)
- return 0;
- /*
- * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
- * These allow us later to know we won't lose too much precision in the
- * fixed-point division (err<<fracbits)/n.
- */
-
- fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2_wide(err)+1);
-
- err <<= fracbits;
- err /= n;
- /* err now holds err/n with fracbits fractional bits */
-
- /*
- * Whittle err down to 16 bits max. 16 significant bits is enough for
- * our purposes.
- */
- FLAC__ASSERT(err > 0);
- bits = FLAC__bitmath_ilog2_wide(err)+1;
- if(bits > 16) {
- err >>= (bits-16);
- fracbits -= (bits-16);
- }
- rbps = (FLAC__uint32)err;
-
- /* Multiply by fixed-point version of ln(2), with 16 fractional bits */
- rbps *= FLAC__FP_LN2;
- fracbits += 16;
- FLAC__ASSERT(fracbits >= 0);
-
- /* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
- {
- const int f = fracbits & 3;
- if(f) {
- rbps >>= f;
- fracbits -= f;
- }
- }
-
- rbps = FLAC__fixedpoint_log2(rbps, fracbits, (unsigned)(-1));
-
- if(rbps == 0)
- return 0;
-
- /*
- * The return value must have 16 fractional bits. Since the whole part
- * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
- * must be >= -3, these assertion allows us to be able to shift rbps
- * left if necessary to get 16 fracbits without losing any bits of the
- * whole part of rbps.
- *
- * There is a slight chance due to accumulated error that the whole part
- * will require 6 bits, so we use 6 in the assertion. Really though as
- * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
- */
- FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
- FLAC__ASSERT(fracbits >= -3);
-
- /* now shift the decimal point into place */
- if(fracbits < 16)
- return rbps << (16-fracbits);
- else if(fracbits > 16)
- return rbps >> (fracbits-16);
- else
- return rbps;
-}
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#else
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#endif
-{
- FLAC__int32 last_error_0 = data[-1];
- FLAC__int32 last_error_1 = data[-1] - data[-2];
- FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
- FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
- FLAC__int32 error, save;
- FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
- unsigned i, order;
-
- for(i = 0; i < data_len; i++) {
- error = data[i] ; total_error_0 += local_abs(error); save = error;
- error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
- error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
- error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
- error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
- }
-
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-#else
- residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_integerized(total_error_0, data_len) : 0;
- residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_integerized(total_error_1, data_len) : 0;
- residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_integerized(total_error_2, data_len) : 0;
- residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_integerized(total_error_3, data_len) : 0;
- residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_integerized(total_error_4, data_len) : 0;
-#endif
-
- return order;
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#else
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-#endif
-{
- FLAC__int32 last_error_0 = data[-1];
- FLAC__int32 last_error_1 = data[-1] - data[-2];
- FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
- FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
- FLAC__int32 error, save;
- /* total_error_* are 64-bits to avoid overflow when encoding
- * erratic signals when the bits-per-sample and blocksize are
- * large.
- */
- FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
- unsigned i, order;
-
- for(i = 0; i < data_len; i++) {
- error = data[i] ; total_error_0 += local_abs(error); save = error;
- error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
- error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
- error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
- error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
- }
-
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-#else
- residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_wide_integerized(total_error_0, data_len) : 0;
- residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_wide_integerized(total_error_1, data_len) : 0;
- residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_wide_integerized(total_error_2, data_len) : 0;
- residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_wide_integerized(total_error_3, data_len) : 0;
- residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_wide_integerized(total_error_4, data_len) : 0;
-#endif
-
- return order;
-}
-
-void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[])
-{
- const int idata_len = (int)data_len;
- int i;
-
- switch(order) {
- case 0:
- FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
- memcpy(residual, data, sizeof(residual[0])*data_len);
- break;
- case 1:
- for(i = 0; i < idata_len; i++)
- residual[i] = data[i] - data[i-1];
- break;
- case 2:
- for(i = 0; i < idata_len; i++)
- residual[i] = data[i] - 2*data[i-1] + data[i-2];
- break;
- case 3:
- for(i = 0; i < idata_len; i++)
- residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
- break;
- case 4:
- for(i = 0; i < idata_len; i++)
- residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
- break;
- default:
- FLAC__ASSERT(0);
- }
-}
-
-void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[])
-{
- int i, idata_len = (int)data_len;
-
- switch(order) {
- case 0:
- FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
- memcpy(data, residual, sizeof(residual[0])*data_len);
- break;
- case 1:
- for(i = 0; i < idata_len; i++)
- data[i] = residual[i] + data[i-1];
- break;
- case 2:
- for(i = 0; i < idata_len; i++)
- data[i] = residual[i] + 2*data[i-1] - data[i-2];
- break;
- case 3:
- for(i = 0; i < idata_len; i++)
- data[i] = residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
- break;
- case 4:
- for(i = 0; i < idata_len; i++)
- data[i] = residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
- break;
- default:
- FLAC__ASSERT(0);
- }
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
-#include "private/fixed.h"
-#ifdef FLAC__SSE2_SUPPORTED
-
-#include <emmintrin.h> /* SSE2 */
-#include <math.h>
-#include "private/macros.h"
-#include "share/compat.h"
-#include "FLAC/assert.h"
-
-#ifdef FLAC__CPU_IA32
-#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
-#else
-#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
-#endif
-
-FLAC__SSE_TARGET("sse2")
-unsigned FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
-{
- FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
- unsigned i, order;
-
- __m128i total_err0, total_err1, total_err2;
-
- {
- FLAC__int32 itmp;
- __m128i last_error;
-
- last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
- itmp = data[-2];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
- itmp -= data[-3];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
- itmp -= data[-3] - data[-4];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
-
- total_err0 = total_err1 = _mm_setzero_si128();
- for(i = 0; i < data_len; i++) {
- __m128i err0, err1, tmp;
- err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
- err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
-#if 1 /* OPT_SSE */
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#else
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#endif
- tmp = _mm_slli_si128(err0, 12); // e0 0 0 0
- last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3
- last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3
-
- tmp = _mm_srai_epi32(err0, 31);
- err0 = _mm_xor_si128(err0, tmp);
- err0 = _mm_sub_epi32(err0, tmp);
- tmp = _mm_srai_epi32(err1, 31);
- err1 = _mm_xor_si128(err1, tmp);
- err1 = _mm_sub_epi32(err1, tmp);
-
- total_err0 = _mm_add_epi32(total_err0, err0); // 0 0 0 te0
- total_err1 = _mm_add_epi32(total_err1, err1); // te1 te2 te3 te4
- }
- }
-
- total_error_0 = _mm_cvtsi128_si32(total_err0);
- total_err2 = total_err1; // te1 te2 te3 te4
- total_err1 = _mm_srli_si128(total_err1, 8); // 0 0 te1 te2
- total_error_4 = _mm_cvtsi128_si32(total_err2);
- total_error_2 = _mm_cvtsi128_si32(total_err1);
- total_err2 = _mm_srli_si128(total_err2, 4); // 0 te1 te2 te3
- total_err1 = _mm_srli_si128(total_err1, 4); // 0 0 0 te1
- total_error_3 = _mm_cvtsi128_si32(total_err2);
- total_error_1 = _mm_cvtsi128_si32(total_err1);
-
- /* prefer higher order */
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-
- return order;
-}
-
-FLAC__SSE_TARGET("sse2")
-unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
-{
- FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
- unsigned i, order;
-
- __m128i total_err0, total_err1, total_err3;
-
- {
- FLAC__int32 itmp;
- __m128i last_error, zero = _mm_setzero_si128();
-
- last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
- itmp = data[-2];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
- itmp -= data[-3];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
- itmp -= data[-3] - data[-4];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
-
- total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
- for(i = 0; i < data_len; i++) {
- __m128i err0, err1, tmp;
- err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
- err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
-#if 1 /* OPT_SSE */
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#else
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#endif
- tmp = _mm_slli_si128(err0, 12); // e0 0 0 0
- last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3
- last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3
-
- tmp = _mm_srai_epi32(err0, 31);
- err0 = _mm_xor_si128(err0, tmp);
- err0 = _mm_sub_epi32(err0, tmp);
- tmp = _mm_srai_epi32(err1, 31);
- err1 = _mm_xor_si128(err1, tmp);
- err1 = _mm_sub_epi32(err1, tmp);
-
- total_err0 = _mm_add_epi64(total_err0, err0); // 0 te0
- err0 = _mm_unpacklo_epi32(err1, zero); // 0 |e3| 0 |e4|
- err1 = _mm_unpackhi_epi32(err1, zero); // 0 |e1| 0 |e2|
- total_err3 = _mm_add_epi64(total_err3, err0); // te3 te4
- total_err1 = _mm_add_epi64(total_err1, err1); // te1 te2
- }
- }
-
- m128i_to_i64(total_error_0, total_err0);
- m128i_to_i64(total_error_4, total_err3);
- m128i_to_i64(total_error_2, total_err1);
- total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
- total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
- m128i_to_i64(total_error_3, total_err3);
- m128i_to_i64(total_error_1, total_err1);
-
- /* prefer higher order */
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-
- return order;
-}
-
-#endif /* FLAC__SSE2_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/fixed.h"
-#ifdef FLAC__SSSE3_SUPPORTED
-
-#include <tmmintrin.h> /* SSSE3 */
-#include <math.h>
-#include "private/macros.h"
-#include "share/compat.h"
-#include "FLAC/assert.h"
-
-#ifdef FLAC__CPU_IA32
-#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
-#else
-#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
-#endif
-
-FLAC__SSE_TARGET("ssse3")
-unsigned FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
-{
- FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
- unsigned i, order;
-
- __m128i total_err0, total_err1, total_err2;
-
- {
- FLAC__int32 itmp;
- __m128i last_error;
-
- last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
- itmp = data[-2];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
- itmp -= data[-3];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
- itmp -= data[-3] - data[-4];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
-
- total_err0 = total_err1 = _mm_setzero_si128();
- for(i = 0; i < data_len; i++) {
- __m128i err0, err1;
- err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
- err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
-#if 1 /* OPT_SSE */
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#else
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#endif
- last_error = _mm_alignr_epi8(err0, err1, 4); // e0 e1 e2 e3
-
- err0 = _mm_abs_epi32(err0);
- err1 = _mm_abs_epi32(err1);
-
- total_err0 = _mm_add_epi32(total_err0, err0); // 0 0 0 te0
- total_err1 = _mm_add_epi32(total_err1, err1); // te1 te2 te3 te4
- }
- }
-
- total_error_0 = _mm_cvtsi128_si32(total_err0);
- total_err2 = total_err1; // te1 te2 te3 te4
- total_err1 = _mm_srli_si128(total_err1, 8); // 0 0 te1 te2
- total_error_4 = _mm_cvtsi128_si32(total_err2);
- total_error_2 = _mm_cvtsi128_si32(total_err1);
- total_err2 = _mm_srli_si128(total_err2, 4); // 0 te1 te2 te3
- total_err1 = _mm_srli_si128(total_err1, 4); // 0 0 0 te1
- total_error_3 = _mm_cvtsi128_si32(total_err2);
- total_error_1 = _mm_cvtsi128_si32(total_err1);
-
- /* prefer higher order */
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-
- return order;
-}
-
-FLAC__SSE_TARGET("ssse3")
-unsigned FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
-{
- FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
- unsigned i, order;
-
- __m128i total_err0, total_err1, total_err3;
-
- {
- FLAC__int32 itmp;
- __m128i last_error, zero = _mm_setzero_si128();
-
- last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0
- itmp = data[-2];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1
- itmp -= data[-3];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2
- itmp -= data[-3] - data[-4];
- last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
- last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3
-
- total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
- for(i = 0; i < data_len; i++) {
- __m128i err0, err1;
- err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0
- err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0
-#if 1 /* OPT_SSE */
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1
- err1 = _mm_sub_epi32(err1, last_error);
- last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#else
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1
- last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0
- err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4
-#endif
- last_error = _mm_alignr_epi8(err0, err1, 4); // e0 e1 e2 e3
-
- err0 = _mm_abs_epi32(err0);
- err1 = _mm_abs_epi32(err1); // |e1| |e2| |e3| |e4|
-
- total_err0 = _mm_add_epi64(total_err0, err0); // 0 te0
- err0 = _mm_unpacklo_epi32(err1, zero); // 0 |e3| 0 |e4|
- err1 = _mm_unpackhi_epi32(err1, zero); // 0 |e1| 0 |e2|
- total_err3 = _mm_add_epi64(total_err3, err0); // te3 te4
- total_err1 = _mm_add_epi64(total_err1, err1); // te1 te2
- }
- }
-
- m128i_to_i64(total_error_0, total_err0);
- m128i_to_i64(total_error_4, total_err3);
- m128i_to_i64(total_error_2, total_err1);
- total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
- total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
- m128i_to_i64(total_error_3, total_err3);
- m128i_to_i64(total_error_1, total_err1);
-
- /* prefer higher order */
- if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
- order = 0;
- else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4))
- order = 1;
- else if(total_error_2 < flac_min(total_error_3, total_error_4))
- order = 2;
- else if(total_error_3 < total_error_4)
- order = 3;
- else
- order = 4;
-
- /* Estimate the expected number of bits per residual signal sample. */
- /* 'total_error*' is linearly related to the variance of the residual */
- /* signal, so we use it directly to compute E(|x|) */
- FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
- FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
-
- residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-
- return order;
-}
-
-#endif /* FLAC__SSSE3_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-
-Name: FLAC
-Description: Free Lossless Audio Codec Library
-Version: @VERSION@
-Requires.private: @OGG_PACKAGE@
-Libs: -L${libdir} -lFLAC
-Libs.private: -lm
-Cflags: -I${includedir}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "FLAC/assert.h"
-#include "share/compat.h"
-#include "private/float.h"
-
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
-
-const FLAC__fixedpoint FLAC__FP_ZERO = 0;
-const FLAC__fixedpoint FLAC__FP_ONE_HALF = 0x00008000;
-const FLAC__fixedpoint FLAC__FP_ONE = 0x00010000;
-const FLAC__fixedpoint FLAC__FP_LN2 = 45426;
-const FLAC__fixedpoint FLAC__FP_E = 178145;
-
-/* Lookup tables for Knuth's logarithm algorithm */
-#define LOG2_LOOKUP_PRECISION 16
-static const FLAC__uint32 log2_lookup[][LOG2_LOOKUP_PRECISION] = {
- {
- /*
- * 0 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000001,
- /* lg(4/3) = */ 0x00000000,
- /* lg(8/7) = */ 0x00000000,
- /* lg(16/15) = */ 0x00000000,
- /* lg(32/31) = */ 0x00000000,
- /* lg(64/63) = */ 0x00000000,
- /* lg(128/127) = */ 0x00000000,
- /* lg(256/255) = */ 0x00000000,
- /* lg(512/511) = */ 0x00000000,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 4 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000010,
- /* lg(4/3) = */ 0x00000007,
- /* lg(8/7) = */ 0x00000003,
- /* lg(16/15) = */ 0x00000001,
- /* lg(32/31) = */ 0x00000001,
- /* lg(64/63) = */ 0x00000000,
- /* lg(128/127) = */ 0x00000000,
- /* lg(256/255) = */ 0x00000000,
- /* lg(512/511) = */ 0x00000000,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 8 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00000100,
- /* lg(4/3) = */ 0x0000006a,
- /* lg(8/7) = */ 0x00000031,
- /* lg(16/15) = */ 0x00000018,
- /* lg(32/31) = */ 0x0000000c,
- /* lg(64/63) = */ 0x00000006,
- /* lg(128/127) = */ 0x00000003,
- /* lg(256/255) = */ 0x00000001,
- /* lg(512/511) = */ 0x00000001,
- /* lg(1024/1023) = */ 0x00000000,
- /* lg(2048/2047) = */ 0x00000000,
- /* lg(4096/4095) = */ 0x00000000,
- /* lg(8192/8191) = */ 0x00000000,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 12 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00001000,
- /* lg(4/3) = */ 0x000006a4,
- /* lg(8/7) = */ 0x00000315,
- /* lg(16/15) = */ 0x0000017d,
- /* lg(32/31) = */ 0x000000bc,
- /* lg(64/63) = */ 0x0000005d,
- /* lg(128/127) = */ 0x0000002e,
- /* lg(256/255) = */ 0x00000017,
- /* lg(512/511) = */ 0x0000000c,
- /* lg(1024/1023) = */ 0x00000006,
- /* lg(2048/2047) = */ 0x00000003,
- /* lg(4096/4095) = */ 0x00000001,
- /* lg(8192/8191) = */ 0x00000001,
- /* lg(16384/16383) = */ 0x00000000,
- /* lg(32768/32767) = */ 0x00000000
- },
- {
- /*
- * 16 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00010000,
- /* lg(4/3) = */ 0x00006a40,
- /* lg(8/7) = */ 0x00003151,
- /* lg(16/15) = */ 0x000017d6,
- /* lg(32/31) = */ 0x00000bba,
- /* lg(64/63) = */ 0x000005d1,
- /* lg(128/127) = */ 0x000002e6,
- /* lg(256/255) = */ 0x00000172,
- /* lg(512/511) = */ 0x000000b9,
- /* lg(1024/1023) = */ 0x0000005c,
- /* lg(2048/2047) = */ 0x0000002e,
- /* lg(4096/4095) = */ 0x00000017,
- /* lg(8192/8191) = */ 0x0000000c,
- /* lg(16384/16383) = */ 0x00000006,
- /* lg(32768/32767) = */ 0x00000003
- },
- {
- /*
- * 20 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x00100000,
- /* lg(4/3) = */ 0x0006a3fe,
- /* lg(8/7) = */ 0x00031513,
- /* lg(16/15) = */ 0x00017d60,
- /* lg(32/31) = */ 0x0000bb9d,
- /* lg(64/63) = */ 0x00005d10,
- /* lg(128/127) = */ 0x00002e59,
- /* lg(256/255) = */ 0x00001721,
- /* lg(512/511) = */ 0x00000b8e,
- /* lg(1024/1023) = */ 0x000005c6,
- /* lg(2048/2047) = */ 0x000002e3,
- /* lg(4096/4095) = */ 0x00000171,
- /* lg(8192/8191) = */ 0x000000b9,
- /* lg(16384/16383) = */ 0x0000005c,
- /* lg(32768/32767) = */ 0x0000002e
- },
- {
- /*
- * 24 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x01000000,
- /* lg(4/3) = */ 0x006a3fe6,
- /* lg(8/7) = */ 0x00315130,
- /* lg(16/15) = */ 0x0017d605,
- /* lg(32/31) = */ 0x000bb9ca,
- /* lg(64/63) = */ 0x0005d0fc,
- /* lg(128/127) = */ 0x0002e58f,
- /* lg(256/255) = */ 0x0001720e,
- /* lg(512/511) = */ 0x0000b8d8,
- /* lg(1024/1023) = */ 0x00005c61,
- /* lg(2048/2047) = */ 0x00002e2d,
- /* lg(4096/4095) = */ 0x00001716,
- /* lg(8192/8191) = */ 0x00000b8b,
- /* lg(16384/16383) = */ 0x000005c5,
- /* lg(32768/32767) = */ 0x000002e3
- },
- {
- /*
- * 28 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ 0x10000000,
- /* lg(4/3) = */ 0x06a3fe5c,
- /* lg(8/7) = */ 0x03151301,
- /* lg(16/15) = */ 0x017d6049,
- /* lg(32/31) = */ 0x00bb9ca6,
- /* lg(64/63) = */ 0x005d0fba,
- /* lg(128/127) = */ 0x002e58f7,
- /* lg(256/255) = */ 0x001720da,
- /* lg(512/511) = */ 0x000b8d87,
- /* lg(1024/1023) = */ 0x0005c60b,
- /* lg(2048/2047) = */ 0x0002e2d7,
- /* lg(4096/4095) = */ 0x00017160,
- /* lg(8192/8191) = */ 0x0000b8ad,
- /* lg(16384/16383) = */ 0x00005c56,
- /* lg(32768/32767) = */ 0x00002e2b
- }
-};
-
-#if 0
-static const FLAC__uint64 log2_lookup_wide[] = {
- {
- /*
- * 32 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ FLAC__U64L(0x100000000),
- /* lg(4/3) = */ FLAC__U64L(0x6a3fe5c6),
- /* lg(8/7) = */ FLAC__U64L(0x31513015),
- /* lg(16/15) = */ FLAC__U64L(0x17d60497),
- /* lg(32/31) = */ FLAC__U64L(0x0bb9ca65),
- /* lg(64/63) = */ FLAC__U64L(0x05d0fba2),
- /* lg(128/127) = */ FLAC__U64L(0x02e58f74),
- /* lg(256/255) = */ FLAC__U64L(0x01720d9c),
- /* lg(512/511) = */ FLAC__U64L(0x00b8d875),
- /* lg(1024/1023) = */ FLAC__U64L(0x005c60aa),
- /* lg(2048/2047) = */ FLAC__U64L(0x002e2d72),
- /* lg(4096/4095) = */ FLAC__U64L(0x00171600),
- /* lg(8192/8191) = */ FLAC__U64L(0x000b8ad2),
- /* lg(16384/16383) = */ FLAC__U64L(0x0005c55d),
- /* lg(32768/32767) = */ FLAC__U64L(0x0002e2ac)
- },
- {
- /*
- * 48 fraction bits
- */
- /* undefined */ 0x00000000,
- /* lg(2/1) = */ FLAC__U64L(0x1000000000000),
- /* lg(4/3) = */ FLAC__U64L(0x6a3fe5c60429),
- /* lg(8/7) = */ FLAC__U64L(0x315130157f7a),
- /* lg(16/15) = */ FLAC__U64L(0x17d60496cfbb),
- /* lg(32/31) = */ FLAC__U64L(0xbb9ca64ecac),
- /* lg(64/63) = */ FLAC__U64L(0x5d0fba187cd),
- /* lg(128/127) = */ FLAC__U64L(0x2e58f7441ee),
- /* lg(256/255) = */ FLAC__U64L(0x1720d9c06a8),
- /* lg(512/511) = */ FLAC__U64L(0xb8d8752173),
- /* lg(1024/1023) = */ FLAC__U64L(0x5c60aa252e),
- /* lg(2048/2047) = */ FLAC__U64L(0x2e2d71b0d8),
- /* lg(4096/4095) = */ FLAC__U64L(0x1716001719),
- /* lg(8192/8191) = */ FLAC__U64L(0xb8ad1de1b),
- /* lg(16384/16383) = */ FLAC__U64L(0x5c55d640d),
- /* lg(32768/32767) = */ FLAC__U64L(0x2e2abcf52)
- }
-};
-#endif
-
-FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision)
-{
- const FLAC__uint32 ONE = (1u << fracbits);
- const FLAC__uint32 *table = log2_lookup[fracbits >> 2];
-
- FLAC__ASSERT(fracbits < 32);
- FLAC__ASSERT((fracbits & 0x3) == 0);
-
- if(x < ONE)
- return 0;
-
- if(precision > LOG2_LOOKUP_PRECISION)
- precision = LOG2_LOOKUP_PRECISION;
-
- /* Knuth's algorithm for computing logarithms, optimized for base-2 with lookup tables */
- {
- FLAC__uint32 y = 0;
- FLAC__uint32 z = x >> 1, k = 1;
- while (x > ONE && k < precision) {
- if (x - z >= ONE) {
- x -= z;
- z = x >> k;
- y += table[k];
- }
- else {
- z >>= 1;
- k++;
- }
- }
- return y;
- }
-}
-
-#endif /* defined FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h> /* for qsort() */
-#include <string.h> /* for memset() */
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "share/alloc.h"
-#include "share/compat.h"
-#include "private/format.h"
-#include "private/macros.h"
-
-/* PACKAGE_VERSION should come from configure */
-FLAC_API const char *FLAC__VERSION_STRING = PACKAGE_VERSION;
-
-FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20170101";
-
-FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
-FLAC_API const unsigned FLAC__STREAM_SYNC = 0x664C6143;
-FLAC_API const unsigned FLAC__STREAM_SYNC_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
-
-FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER = FLAC__U64L(0xffffffffffffffff);
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN = 8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN = 3*8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN = 8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN = 12*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN = 6+13*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN = 128*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN = 64; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN = 1; /* bit */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN = 7+258*8; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_TYPE_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_COLORS_LEN = 32; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN = 32; /* bits */
-
-FLAC_API const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */
-FLAC_API const unsigned FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */
-
-FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC = 0x3ffe;
-FLAC_API const unsigned FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_RESERVED_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */
-
-FLAC_API const unsigned FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */
-
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN = 5; /* bits */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN = 5; /* bits */
-
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER = 15; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
-FLAC_API const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER = 31; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
-
-FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[] = {
- "PARTITIONED_RICE",
- "PARTITIONED_RICE2"
-};
-
-FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */
-
-FLAC_API const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */
-FLAC_API const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */
-
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10;
-FLAC_API const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40;
-
-FLAC_API const char * const FLAC__SubframeTypeString[] = {
- "CONSTANT",
- "VERBATIM",
- "FIXED",
- "LPC"
-};
-
-FLAC_API const char * const FLAC__ChannelAssignmentString[] = {
- "INDEPENDENT",
- "LEFT_SIDE",
- "RIGHT_SIDE",
- "MID_SIDE"
-};
-
-FLAC_API const char * const FLAC__FrameNumberTypeString[] = {
- "FRAME_NUMBER_TYPE_FRAME_NUMBER",
- "FRAME_NUMBER_TYPE_SAMPLE_NUMBER"
-};
-
-FLAC_API const char * const FLAC__MetadataTypeString[] = {
- "STREAMINFO",
- "PADDING",
- "APPLICATION",
- "SEEKTABLE",
- "VORBIS_COMMENT",
- "CUESHEET",
- "PICTURE"
-};
-
-FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[] = {
- "Other",
- "32x32 pixels 'file icon' (PNG only)",
- "Other file icon",
- "Cover (front)",
- "Cover (back)",
- "Leaflet page",
- "Media (e.g. label side of CD)",
- "Lead artist/lead performer/soloist",
- "Artist/performer",
- "Conductor",
- "Band/Orchestra",
- "Composer",
- "Lyricist/text writer",
- "Recording Location",
- "During recording",
- "During performance",
- "Movie/video screen capture",
- "A bright coloured fish",
- "Illustration",
- "Band/artist logotype",
- "Publisher/Studio logotype"
-};
-
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate)
-{
- if(sample_rate == 0 || sample_rate > FLAC__MAX_SAMPLE_RATE) {
- return false;
- }
- else
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(unsigned blocksize, unsigned sample_rate)
-{
- if(blocksize > 16384)
- return false;
- else if(sample_rate <= 48000 && blocksize > 4608)
- return false;
- else
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate)
-{
- if(
- !FLAC__format_sample_rate_is_valid(sample_rate) ||
- (
- sample_rate >= (1u << 16) &&
- !(sample_rate % 1000 == 0 || sample_rate % 10 == 0)
- )
- ) {
- return false;
- }
- else
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table)
-{
- unsigned i;
- FLAC__uint64 prev_sample_number = 0;
- FLAC__bool got_prev = false;
-
- FLAC__ASSERT(0 != seek_table);
-
- for(i = 0; i < seek_table->num_points; i++) {
- if(got_prev) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].sample_number <= prev_sample_number
- )
- return false;
- }
- prev_sample_number = seek_table->points[i].sample_number;
- got_prev = true;
- }
-
- return true;
-}
-
-/* used as the sort predicate for qsort() */
-static int seekpoint_compare_(const FLAC__StreamMetadata_SeekPoint *l, const FLAC__StreamMetadata_SeekPoint *r)
-{
- /* we don't just 'return l->sample_number - r->sample_number' since the result (FLAC__int64) might overflow an 'int' */
- if(l->sample_number == r->sample_number)
- return 0;
- else if(l->sample_number < r->sample_number)
- return -1;
- else
- return 1;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API unsigned FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table)
-{
- unsigned i, j;
- FLAC__bool first;
-
- FLAC__ASSERT(0 != seek_table);
-
- if (seek_table->num_points == 0)
- return 0;
-
- /* sort the seekpoints */
- qsort(seek_table->points, seek_table->num_points, sizeof(FLAC__StreamMetadata_SeekPoint), (int (*)(const void *, const void *))seekpoint_compare_);
-
- /* uniquify the seekpoints */
- first = true;
- for(i = j = 0; i < seek_table->num_points; i++) {
- if(seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
- if(!first) {
- if(seek_table->points[i].sample_number == seek_table->points[j-1].sample_number)
- continue;
- }
- }
- first = false;
- seek_table->points[j++] = seek_table->points[i];
- }
-
- for(i = j; i < seek_table->num_points; i++) {
- seek_table->points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
-
- return j;
-}
-
-/*
- * also disallows non-shortest-form encodings, c.f.
- * http://www.unicode.org/versions/corrigendum1.html
- * and a more clear explanation at the end of this section:
- * http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
- */
-static unsigned utf8len_(const FLAC__byte *utf8)
-{
- FLAC__ASSERT(0 != utf8);
- if ((utf8[0] & 0x80) == 0) {
- return 1;
- }
- else if ((utf8[0] & 0xE0) == 0xC0 && (utf8[1] & 0xC0) == 0x80) {
- if ((utf8[0] & 0xFE) == 0xC0) /* overlong sequence check */
- return 0;
- return 2;
- }
- else if ((utf8[0] & 0xF0) == 0xE0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80) {
- if (utf8[0] == 0xE0 && (utf8[1] & 0xE0) == 0x80) /* overlong sequence check */
- return 0;
- /* illegal surrogates check (U+D800...U+DFFF and U+FFFE...U+FFFF) */
- if (utf8[0] == 0xED && (utf8[1] & 0xE0) == 0xA0) /* D800-DFFF */
- return 0;
- if (utf8[0] == 0xEF && utf8[1] == 0xBF && (utf8[2] & 0xFE) == 0xBE) /* FFFE-FFFF */
- return 0;
- return 3;
- }
- else if ((utf8[0] & 0xF8) == 0xF0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80) {
- if (utf8[0] == 0xF0 && (utf8[1] & 0xF0) == 0x80) /* overlong sequence check */
- return 0;
- return 4;
- }
- else if ((utf8[0] & 0xFC) == 0xF8 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80) {
- if (utf8[0] == 0xF8 && (utf8[1] & 0xF8) == 0x80) /* overlong sequence check */
- return 0;
- return 5;
- }
- else if ((utf8[0] & 0xFE) == 0xFC && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80 && (utf8[5] & 0xC0) == 0x80) {
- if (utf8[0] == 0xFC && (utf8[1] & 0xFC) == 0x80) /* overlong sequence check */
- return 0;
- return 6;
- }
- else {
- return 0;
- }
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name)
-{
- char c;
- for(c = *name; c; c = *(++name))
- if(c < 0x20 || c == 0x3d || c > 0x7d)
- return false;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, unsigned length)
-{
- if(length == (unsigned)(-1)) {
- while(*value) {
- unsigned n = utf8len_(value);
- if(n == 0)
- return false;
- value += n;
- }
- }
- else {
- const FLAC__byte *end = value + length;
- while(value < end) {
- unsigned n = utf8len_(value);
- if(n == 0)
- return false;
- value += n;
- }
- if(value != end)
- return false;
- }
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, unsigned length)
-{
- const FLAC__byte *s, *end;
-
- for(s = entry, end = s + length; s < end && *s != '='; s++) {
- if(*s < 0x20 || *s > 0x7D)
- return false;
- }
- if(s == end)
- return false;
-
- s++; /* skip '=' */
-
- while(s < end) {
- unsigned n = utf8len_(s);
- if(n == 0)
- return false;
- s += n;
- }
- if(s != end)
- return false;
-
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation)
-{
- unsigned i, j;
-
- if(check_cd_da_subset) {
- if(cue_sheet->lead_in < 2 * 44100) {
- if(violation) *violation = "CD-DA cue sheet must have a lead-in length of at least 2 seconds";
- return false;
- }
- if(cue_sheet->lead_in % 588 != 0) {
- if(violation) *violation = "CD-DA cue sheet lead-in length must be evenly divisible by 588 samples";
- return false;
- }
- }
-
- if(cue_sheet->num_tracks == 0) {
- if(violation) *violation = "cue sheet must have at least one track (the lead-out)";
- return false;
- }
-
- if(check_cd_da_subset && cue_sheet->tracks[cue_sheet->num_tracks-1].number != 170) {
- if(violation) *violation = "CD-DA cue sheet must have a lead-out track number 170 (0xAA)";
- return false;
- }
-
- for(i = 0; i < cue_sheet->num_tracks; i++) {
- if(cue_sheet->tracks[i].number == 0) {
- if(violation) *violation = "cue sheet may not have a track number 0";
- return false;
- }
-
- if(check_cd_da_subset) {
- if(!((cue_sheet->tracks[i].number >= 1 && cue_sheet->tracks[i].number <= 99) || cue_sheet->tracks[i].number == 170)) {
- if(violation) *violation = "CD-DA cue sheet track number must be 1-99 or 170";
- return false;
- }
- }
-
- if(check_cd_da_subset && cue_sheet->tracks[i].offset % 588 != 0) {
- if(violation) {
- if(i == cue_sheet->num_tracks-1) /* the lead-out track... */
- *violation = "CD-DA cue sheet lead-out offset must be evenly divisible by 588 samples";
- else
- *violation = "CD-DA cue sheet track offset must be evenly divisible by 588 samples";
- }
- return false;
- }
-
- if(i < cue_sheet->num_tracks - 1) {
- if(cue_sheet->tracks[i].num_indices == 0) {
- if(violation) *violation = "cue sheet track must have at least one index point";
- return false;
- }
-
- if(cue_sheet->tracks[i].indices[0].number > 1) {
- if(violation) *violation = "cue sheet track's first index number must be 0 or 1";
- return false;
- }
- }
-
- for(j = 0; j < cue_sheet->tracks[i].num_indices; j++) {
- if(check_cd_da_subset && cue_sheet->tracks[i].indices[j].offset % 588 != 0) {
- if(violation) *violation = "CD-DA cue sheet track index offset must be evenly divisible by 588 samples";
- return false;
- }
-
- if(j > 0) {
- if(cue_sheet->tracks[i].indices[j].number != cue_sheet->tracks[i].indices[j-1].number + 1) {
- if(violation) *violation = "cue sheet track index numbers must increase by 1";
- return false;
- }
- }
- }
- }
-
- return true;
-}
-
-/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
-FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation)
-{
- char *p;
- FLAC__byte *b;
-
- for(p = picture->mime_type; *p; p++) {
- if(*p < 0x20 || *p > 0x7e) {
- if(violation) *violation = "MIME type string must contain only printable ASCII characters (0x20-0x7e)";
- return false;
- }
- }
-
- for(b = picture->description; *b; ) {
- unsigned n = utf8len_(b);
- if(n == 0) {
- if(violation) *violation = "description string must be valid UTF-8";
- return false;
- }
- b += n;
- }
-
- return true;
-}
-
-/*
- * These routines are private to libFLAC
- */
-unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order)
-{
- return
- FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(
- FLAC__format_get_max_rice_partition_order_from_blocksize(blocksize),
- blocksize,
- predictor_order
- );
-}
-
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize)
-{
- unsigned max_rice_partition_order = 0;
- while(!(blocksize & 1)) {
- max_rice_partition_order++;
- blocksize >>= 1;
- }
- return flac_min(FLAC__MAX_RICE_PARTITION_ORDER, max_rice_partition_order);
-}
-
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order)
-{
- unsigned max_rice_partition_order = limit;
-
- while(max_rice_partition_order > 0 && (blocksize >> max_rice_partition_order) <= predictor_order)
- max_rice_partition_order--;
-
- FLAC__ASSERT(
- (max_rice_partition_order == 0 && blocksize >= predictor_order) ||
- (max_rice_partition_order > 0 && blocksize >> max_rice_partition_order > predictor_order)
- );
-
- return max_rice_partition_order;
-}
-
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
-{
- FLAC__ASSERT(0 != object);
-
- object->parameters = 0;
- object->raw_bits = 0;
- object->capacity_by_order = 0;
-}
-
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
-{
- FLAC__ASSERT(0 != object);
-
- if(0 != object->parameters)
- free(object->parameters);
- if(0 != object->raw_bits)
- free(object->raw_bits);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(object);
-}
-
-FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order)
-{
- FLAC__ASSERT(0 != object);
-
- FLAC__ASSERT(object->capacity_by_order > 0 || (0 == object->parameters && 0 == object->raw_bits));
-
- if(object->capacity_by_order < max_partition_order) {
- if(0 == (object->parameters = safe_realloc_(object->parameters, sizeof(unsigned)*(1 << max_partition_order))))
- return false;
- if(0 == (object->raw_bits = safe_realloc_(object->raw_bits, sizeof(unsigned)*(1 << max_partition_order))))
- return false;
- memset(object->raw_bits, 0, sizeof(unsigned)*(1 << max_partition_order));
- object->capacity_by_order = max_partition_order;
- }
-
- return true;
-}
+++ /dev/null
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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-install-strip:
- if test -z '$(STRIP)'; then \
- $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
- install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
- install; \
- else \
- $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
- install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
- "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
- fi
-mostlyclean-generic:
-
-clean-generic:
-
-distclean-generic:
- -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
- -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
-
-maintainer-clean-generic:
- @echo "This command is intended for maintainers to use"
- @echo "it deletes files that may require special tools to rebuild."
-clean: clean-am
-
-clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
- mostlyclean-am
-
-distclean: distclean-am
- -rm -f Makefile
-distclean-am: clean-am distclean-compile distclean-generic \
- distclean-tags
-
-dvi: dvi-am
-
-dvi-am:
-
-html: html-am
-
-html-am:
-
-info: info-am
-
-info-am:
-
-install-data-am:
-
-install-dvi: install-dvi-am
-
-install-dvi-am:
-
-install-exec-am:
-
-install-html: install-html-am
-
-install-html-am:
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-install-info: install-info-am
-
-install-info-am:
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-install-man:
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-install-ps: install-ps-am
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-install-ps-am:
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-installcheck-am:
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-maintainer-clean: maintainer-clean-am
- -rm -f Makefile
-maintainer-clean-am: distclean-am maintainer-clean-generic
-
-mostlyclean: mostlyclean-am
-
-mostlyclean-am: mostlyclean-compile mostlyclean-generic \
- mostlyclean-libtool
-
-pdf: pdf-am
-
-pdf-am:
-
-ps: ps-am
-
-ps-am:
-
-uninstall-am:
-
-.MAKE: install-am install-strip
-
-.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
- clean-libtool clean-noinstLTLIBRARIES cscopelist-am ctags \
- ctags-am distclean distclean-compile distclean-generic \
- distclean-libtool distclean-tags distdir dvi dvi-am html \
- html-am info info-am install install-am install-data \
- install-data-am install-dvi install-dvi-am install-exec \
- install-exec-am install-html install-html-am install-info \
- install-info-am install-man install-pdf install-pdf-am \
- install-ps install-ps-am install-strip installcheck \
- installcheck-am installdirs maintainer-clean \
- maintainer-clean-generic mostlyclean mostlyclean-compile \
- mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
- tags tags-am uninstall uninstall-am
-
-.PRECIOUS: Makefile
-
-.nasm.lo:
- $(LIBTOOL) --tag=CC --mode=compile $(STRIP_NON_ASM) $(NASM) -f $(OBJ_FORMAT) -d OBJ_FORMAT_$(OBJ_FORMAT) -i$(srcdir)/ $< -o $@
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
+++ /dev/null
-; vim:filetype=nasm ts=8
-
-; libFLAC - Free Lossless Audio Codec library
-; Copyright (C) 2001-2009 Josh Coalson
-; Copyright (C) 2011-2016 Xiph.Org Foundation
-;
-; Redistribution and use in source and binary forms, with or without
-; modification, are permitted provided that the following conditions
-; are met:
-;
-; - Redistributions of source code must retain the above copyright
-; notice, this list of conditions and the following disclaimer.
-;
-; - Redistributions in binary form must reproduce the above copyright
-; notice, this list of conditions and the following disclaimer in the
-; documentation and/or other materials provided with the distribution.
-;
-; - Neither the name of the Xiph.org Foundation nor the names of its
-; contributors may be used to endorse or promote products derived from
-; this software without specific prior written permission.
-;
-; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-%include "nasm.h"
-
- data_section
-
-cglobal FLAC__cpu_have_cpuid_asm_ia32
-cglobal FLAC__cpu_info_asm_ia32
-
- code_section
-
-; **********************************************************************
-;
-; FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32()
-;
-
-cident FLAC__cpu_have_cpuid_asm_ia32
- pushfd
- pop eax
- mov edx, eax
- xor eax, 0x00200000
- push eax
- popfd
- pushfd
- pop eax
- xor eax, edx
- and eax, 0x00200000
- shr eax, 0x15
- push edx
- popfd
- ret
-
-; **********************************************************************
-;
-; void FLAC__cpu_info_asm_ia32(FLAC__uint32 *flags_edx, FLAC__uint32 *flags_ecx)
-;
-
-cident FLAC__cpu_info_asm_ia32
- ;[esp + 8] == flags_edx
- ;[esp + 12] == flags_ecx
-
- push ebx
- call FLAC__cpu_have_cpuid_asm_ia32
- test eax, eax
- jz .no_cpuid
- mov eax, 0
- cpuid
- cmp eax, 1
- jb .no_cpuid
- xor ecx, ecx
- mov eax, 1
- cpuid
- mov ebx, [esp + 8]
- mov [ebx], edx
- mov ebx, [esp + 12]
- mov [ebx], ecx
- jmp .end
-.no_cpuid:
- xor eax, eax
- mov ebx, [esp + 8]
- mov [ebx], eax
- mov ebx, [esp + 12]
- mov [ebx], eax
-.end:
- pop ebx
- ret
-
-; end
+++ /dev/null
-; vim:filetype=nasm ts=8
-
-; libFLAC - Free Lossless Audio Codec library
-; Copyright (C) 2001-2009 Josh Coalson
-; Copyright (C) 2011-2016 Xiph.Org Foundation
-;
-; Redistribution and use in source and binary forms, with or without
-; modification, are permitted provided that the following conditions
-; are met:
-;
-; - Redistributions of source code must retain the above copyright
-; notice, this list of conditions and the following disclaimer.
-;
-; - Redistributions in binary form must reproduce the above copyright
-; notice, this list of conditions and the following disclaimer in the
-; documentation and/or other materials provided with the distribution.
-;
-; - Neither the name of the Xiph.org Foundation nor the names of its
-; contributors may be used to endorse or promote products derived from
-; this software without specific prior written permission.
-;
-; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-%include "nasm.h"
-
- data_section
-
-cglobal FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov
-
- code_section
-
-; **********************************************************************
-;
-; unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 *data, unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
-; {
-; FLAC__int32 last_error_0 = data[-1];
-; FLAC__int32 last_error_1 = data[-1] - data[-2];
-; FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
-; FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
-; FLAC__int32 error, save;
-; FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
-; unsigned i, order;
-;
-; for(i = 0; i < data_len; i++) {
-; error = data[i] ; total_error_0 += local_abs(error); save = error;
-; error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
-; error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
-; error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
-; error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
-; }
-;
-; if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
-; order = 0;
-; else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
-; order = 1;
-; else if(total_error_2 < min(total_error_3, total_error_4))
-; order = 2;
-; else if(total_error_3 < total_error_4)
-; order = 3;
-; else
-; order = 4;
-;
-; residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
-; residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
-; residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
-; residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
-; residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
-;
-; return order;
-; }
- ALIGN 16
-cident FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov
-
- ; esp + 36 == data[]
- ; esp + 40 == data_len
- ; esp + 44 == residual_bits_per_sample[]
-
- push ebp
- push ebx
- push esi
- push edi
- sub esp, byte 16
- ; qword [esp] == temp space for loading FLAC__uint64s to FPU regs
-
- ; ebx == &data[i]
- ; ecx == loop counter (i)
- ; ebp == order
- ; mm0 == total_error_1:total_error_0
- ; mm1 == total_error_2:total_error_3
- ; mm2 == :total_error_4
- ; mm3 == last_error_1:last_error_0
- ; mm4 == last_error_2:last_error_3
-
- mov ecx, [esp + 40] ; ecx = data_len
- test ecx, ecx
- jz near .data_len_is_0
-
- mov ebx, [esp + 36] ; ebx = data[]
- movd mm3, [ebx - 4] ; mm3 = 0:last_error_0
- movd mm2, [ebx - 8] ; mm2 = 0:data[-2]
- movd mm1, [ebx - 12] ; mm1 = 0:data[-3]
- movd mm0, [ebx - 16] ; mm0 = 0:data[-4]
- movq mm5, mm3 ; mm5 = 0:last_error_0
- psubd mm5, mm2 ; mm5 = 0:last_error_1
- punpckldq mm3, mm5 ; mm3 = last_error_1:last_error_0
- psubd mm2, mm1 ; mm2 = 0:data[-2] - data[-3]
- psubd mm5, mm2 ; mm5 = 0:last_error_2
- movq mm4, mm5 ; mm4 = 0:last_error_2
- psubd mm4, mm2 ; mm4 = 0:last_error_2 - (data[-2] - data[-3])
- paddd mm4, mm1 ; mm4 = 0:last_error_2 - (data[-2] - 2 * data[-3])
- psubd mm4, mm0 ; mm4 = 0:last_error_3
- punpckldq mm4, mm5 ; mm4 = last_error_2:last_error_3
- pxor mm0, mm0 ; mm0 = total_error_1:total_error_0
- pxor mm1, mm1 ; mm1 = total_error_2:total_error_3
- pxor mm2, mm2 ; mm2 = 0:total_error_4
-
- ALIGN 16
-.loop:
- movd mm7, [ebx] ; mm7 = 0:error_0
- add ebx, byte 4
- movq mm6, mm7 ; mm6 = 0:error_0
- psubd mm7, mm3 ; mm7 = :error_1
- punpckldq mm6, mm7 ; mm6 = error_1:error_0
- movq mm5, mm6 ; mm5 = error_1:error_0
- movq mm7, mm6 ; mm7 = error_1:error_0
- psubd mm5, mm3 ; mm5 = error_2:
- movq mm3, mm6 ; mm3 = error_1:error_0
- psrad mm6, 31
- pxor mm7, mm6
- psubd mm7, mm6 ; mm7 = abs(error_1):abs(error_0)
- paddd mm0, mm7 ; mm0 = total_error_1:total_error_0
- movq mm6, mm5 ; mm6 = error_2:
- psubd mm5, mm4 ; mm5 = error_3:
- punpckhdq mm5, mm6 ; mm5 = error_2:error_3
- movq mm7, mm5 ; mm7 = error_2:error_3
- movq mm6, mm5 ; mm6 = error_2:error_3
- psubd mm5, mm4 ; mm5 = :error_4
- movq mm4, mm6 ; mm4 = error_2:error_3
- psrad mm6, 31
- pxor mm7, mm6
- psubd mm7, mm6 ; mm7 = abs(error_2):abs(error_3)
- paddd mm1, mm7 ; mm1 = total_error_2:total_error_3
- movq mm6, mm5 ; mm6 = :error_4
- psrad mm5, 31
- pxor mm6, mm5
- psubd mm6, mm5 ; mm6 = :abs(error_4)
- paddd mm2, mm6 ; mm2 = :total_error_4
-
- dec ecx
- jnz short .loop
-
-; if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
-; order = 0;
-; else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
-; order = 1;
-; else if(total_error_2 < min(total_error_3, total_error_4))
-; order = 2;
-; else if(total_error_3 < total_error_4)
-; order = 3;
-; else
-; order = 4;
- movq mm3, mm0 ; mm3 = total_error_1:total_error_0
- movd edi, mm2 ; edi = total_error_4
- movd esi, mm1 ; esi = total_error_3
- movd eax, mm0 ; eax = total_error_0
- punpckhdq mm1, mm1 ; mm1 = total_error_2:total_error_2
- punpckhdq mm3, mm3 ; mm3 = total_error_1:total_error_1
- movd edx, mm1 ; edx = total_error_2
- movd ecx, mm3 ; ecx = total_error_1
-
- xor ebx, ebx
- xor ebp, ebp
- inc ebx
- cmp ecx, eax
- cmovb eax, ecx ; eax = min(total_error_0, total_error_1)
- cmovbe ebp, ebx
- inc ebx
- cmp edx, eax
- cmovb eax, edx ; eax = min(total_error_0, total_error_1, total_error_2)
- cmovbe ebp, ebx
- inc ebx
- cmp esi, eax
- cmovb eax, esi ; eax = min(total_error_0, total_error_1, total_error_2, total_error_3)
- cmovbe ebp, ebx
- inc ebx
- cmp edi, eax
- cmovb eax, edi ; eax = min(total_error_0, total_error_1, total_error_2, total_error_3, total_error_4)
- cmovbe ebp, ebx
- movd ebx, mm0 ; ebx = total_error_0
- emms
-
- ; residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
- ; residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
- ; residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
- ; residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
- ; residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
- xor eax, eax
- fild dword [esp + 40] ; ST = data_len (NOTE: assumes data_len is <2gigs)
-.rbps_0:
- test ebx, ebx
- jz .total_error_0_is_0
- fld1 ; ST = 1.0 data_len
- mov [esp], ebx
- mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_0
- mov ebx, [esp + 44]
- fild qword [esp] ; ST = total_error_0 1.0 data_len
- fdiv st2 ; ST = total_error_0/data_len 1.0 data_len
- fldln2 ; ST = ln2 total_error_0/data_len 1.0 data_len
- fmulp st1 ; ST = ln2*total_error_0/data_len 1.0 data_len
- fyl2x ; ST = log2(ln2*total_error_0/data_len) data_len
- fstp dword [ebx] ; residual_bits_per_sample[0] = log2(ln2*total_error_0/data_len) ST = data_len
- jmp short .rbps_1
-.total_error_0_is_0:
- mov ebx, [esp + 44]
- mov [ebx], eax ; residual_bits_per_sample[0] = 0.0
-.rbps_1:
- test ecx, ecx
- jz .total_error_1_is_0
- fld1 ; ST = 1.0 data_len
- mov [esp], ecx
- mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_1
- fild qword [esp] ; ST = total_error_1 1.0 data_len
- fdiv st2 ; ST = total_error_1/data_len 1.0 data_len
- fldln2 ; ST = ln2 total_error_1/data_len 1.0 data_len
- fmulp st1 ; ST = ln2*total_error_1/data_len 1.0 data_len
- fyl2x ; ST = log2(ln2*total_error_1/data_len) data_len
- fstp dword [ebx + 4] ; residual_bits_per_sample[1] = log2(ln2*total_error_1/data_len) ST = data_len
- jmp short .rbps_2
-.total_error_1_is_0:
- mov [ebx + 4], eax ; residual_bits_per_sample[1] = 0.0
-.rbps_2:
- test edx, edx
- jz .total_error_2_is_0
- fld1 ; ST = 1.0 data_len
- mov [esp], edx
- mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_2
- fild qword [esp] ; ST = total_error_2 1.0 data_len
- fdiv st2 ; ST = total_error_2/data_len 1.0 data_len
- fldln2 ; ST = ln2 total_error_2/data_len 1.0 data_len
- fmulp st1 ; ST = ln2*total_error_2/data_len 1.0 data_len
- fyl2x ; ST = log2(ln2*total_error_2/data_len) data_len
- fstp dword [ebx + 8] ; residual_bits_per_sample[2] = log2(ln2*total_error_2/data_len) ST = data_len
- jmp short .rbps_3
-.total_error_2_is_0:
- mov [ebx + 8], eax ; residual_bits_per_sample[2] = 0.0
-.rbps_3:
- test esi, esi
- jz .total_error_3_is_0
- fld1 ; ST = 1.0 data_len
- mov [esp], esi
- mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_3
- fild qword [esp] ; ST = total_error_3 1.0 data_len
- fdiv st2 ; ST = total_error_3/data_len 1.0 data_len
- fldln2 ; ST = ln2 total_error_3/data_len 1.0 data_len
- fmulp st1 ; ST = ln2*total_error_3/data_len 1.0 data_len
- fyl2x ; ST = log2(ln2*total_error_3/data_len) data_len
- fstp dword [ebx + 12] ; residual_bits_per_sample[3] = log2(ln2*total_error_3/data_len) ST = data_len
- jmp short .rbps_4
-.total_error_3_is_0:
- mov [ebx + 12], eax ; residual_bits_per_sample[3] = 0.0
-.rbps_4:
- test edi, edi
- jz .total_error_4_is_0
- fld1 ; ST = 1.0 data_len
- mov [esp], edi
- mov [esp + 4], eax ; [esp] = (FLAC__uint64)total_error_4
- fild qword [esp] ; ST = total_error_4 1.0 data_len
- fdiv st2 ; ST = total_error_4/data_len 1.0 data_len
- fldln2 ; ST = ln2 total_error_4/data_len 1.0 data_len
- fmulp st1 ; ST = ln2*total_error_4/data_len 1.0 data_len
- fyl2x ; ST = log2(ln2*total_error_4/data_len) data_len
- fstp dword [ebx + 16] ; residual_bits_per_sample[4] = log2(ln2*total_error_4/data_len) ST = data_len
- jmp short .rbps_end
-.total_error_4_is_0:
- mov [ebx + 16], eax ; residual_bits_per_sample[4] = 0.0
-.rbps_end:
- fstp st0 ; ST = [empty]
- jmp short .end
-.data_len_is_0:
- ; data_len == 0, so residual_bits_per_sample[*] = 0.0
- xor ebp, ebp
- mov edi, [esp + 44]
- mov [edi], ebp
- mov [edi + 4], ebp
- mov [edi + 8], ebp
- mov [edi + 12], ebp
- mov [edi + 16], ebp
- add ebp, byte 4 ; order = 4
-
-.end:
- mov eax, ebp ; return order
- add esp, byte 16
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; end
+++ /dev/null
-; vim:filetype=nasm ts=8
-
-; libFLAC - Free Lossless Audio Codec library
-; Copyright (C) 2001-2009 Josh Coalson
-; Copyright (C) 2011-2016 Xiph.Org Foundation
-;
-; Redistribution and use in source and binary forms, with or without
-; modification, are permitted provided that the following conditions
-; are met:
-;
-; - Redistributions of source code must retain the above copyright
-; notice, this list of conditions and the following disclaimer.
-;
-; - Redistributions in binary form must reproduce the above copyright
-; notice, this list of conditions and the following disclaimer in the
-; documentation and/or other materials provided with the distribution.
-;
-; - Neither the name of the Xiph.org Foundation nor the names of its
-; contributors may be used to endorse or promote products derived from
-; this software without specific prior written permission.
-;
-; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-%include "nasm.h"
-
- data_section
-
-cglobal FLAC__lpc_compute_autocorrelation_asm_ia32
-cglobal FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old
-cglobal FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old
-cglobal FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old
-cglobal FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old
-cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32
-cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx
-cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32
-cglobal FLAC__lpc_restore_signal_asm_ia32
-cglobal FLAC__lpc_restore_signal_asm_ia32_mmx
-cglobal FLAC__lpc_restore_signal_wide_asm_ia32
-
- code_section
-
-; **********************************************************************
-;
-; void FLAC__lpc_compute_autocorrelation_asm(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-; {
-; FLAC__real d;
-; unsigned sample, coeff;
-; const unsigned limit = data_len - lag;
-;
-; FLAC__ASSERT(lag > 0);
-; FLAC__ASSERT(lag <= data_len);
-;
-; for(coeff = 0; coeff < lag; coeff++)
-; autoc[coeff] = 0.0;
-; for(sample = 0; sample <= limit; sample++) {
-; d = data[sample];
-; for(coeff = 0; coeff < lag; coeff++)
-; autoc[coeff] += d * data[sample+coeff];
-; }
-; for(; sample < data_len; sample++) {
-; d = data[sample];
-; for(coeff = 0; coeff < data_len - sample; coeff++)
-; autoc[coeff] += d * data[sample+coeff];
-; }
-; }
-;
- ALIGN 16
-cident FLAC__lpc_compute_autocorrelation_asm_ia32
- ;[esp + 28] == autoc[]
- ;[esp + 24] == lag
- ;[esp + 20] == data_len
- ;[esp + 16] == data[]
-
- ;ASSERT(lag > 0)
- ;ASSERT(lag <= 33)
- ;ASSERT(lag <= data_len)
-
-.begin:
- push esi
- push edi
- push ebx
-
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] = 0.0;
- mov edi, [esp + 28] ; edi == autoc
- mov ecx, [esp + 24] ; ecx = # of dwords (=lag) of 0 to write
- xor eax, eax
- rep stosd
-
- ; const unsigned limit = data_len - lag;
- mov eax, [esp + 24] ; eax == lag
- mov ecx, [esp + 20]
- sub ecx, eax ; ecx == limit
-
- mov edi, [esp + 28] ; edi == autoc
- mov esi, [esp + 16] ; esi == data
- inc ecx ; we are looping <= limit so we add one to the counter
-
- ; for(sample = 0; sample <= limit; sample++) {
- ; d = data[sample];
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] += d * data[sample+coeff];
- ; }
- fld dword [esi] ; ST = d <- data[sample]
- ; each iteration is 11 bytes so we need (-eax)*11, so we do (-12*eax + eax)
- lea edx, [eax + eax*2]
- neg edx
- lea edx, [eax + edx*4 + .jumper1_0 - .get_eip1]
- call .mov_eip_to_ebx
-.get_eip1:
- add edx, ebx
- inc edx ; compensate for the shorter opcode on the last iteration
- inc edx ; compensate for the shorter opcode on the last iteration
- inc edx ; compensate for the shorter opcode on the last iteration
- cmp eax, 33
- jne .loop1_start
- sub edx, byte 9 ; compensate for the longer opcodes on the first iteration
-.loop1_start:
- jmp edx
-
-.mov_eip_to_ebx:
- mov ebx, [esp]
- ret
-
- fld st0 ; ST = d d
- fmul dword [esi + (32*4)] ; ST = d*data[sample+32] d WATCHOUT: not a byte displacement here!
- fadd dword [edi + (32*4)] ; ST = autoc[32]+d*data[sample+32] d WATCHOUT: not a byte displacement here!
- fstp dword [edi + (32*4)] ; autoc[32]+=d*data[sample+32] ST = d WATCHOUT: not a byte displacement here!
- fld st0 ; ST = d d
- fmul dword [esi + (31*4)] ; ST = d*data[sample+31] d
- fadd dword [edi + (31*4)] ; ST = autoc[31]+d*data[sample+31] d
- fstp dword [edi + (31*4)] ; autoc[31]+=d*data[sample+31] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (30*4)] ; ST = d*data[sample+30] d
- fadd dword [edi + (30*4)] ; ST = autoc[30]+d*data[sample+30] d
- fstp dword [edi + (30*4)] ; autoc[30]+=d*data[sample+30] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (29*4)] ; ST = d*data[sample+29] d
- fadd dword [edi + (29*4)] ; ST = autoc[29]+d*data[sample+29] d
- fstp dword [edi + (29*4)] ; autoc[29]+=d*data[sample+29] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (28*4)] ; ST = d*data[sample+28] d
- fadd dword [edi + (28*4)] ; ST = autoc[28]+d*data[sample+28] d
- fstp dword [edi + (28*4)] ; autoc[28]+=d*data[sample+28] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (27*4)] ; ST = d*data[sample+27] d
- fadd dword [edi + (27*4)] ; ST = autoc[27]+d*data[sample+27] d
- fstp dword [edi + (27*4)] ; autoc[27]+=d*data[sample+27] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (26*4)] ; ST = d*data[sample+26] d
- fadd dword [edi + (26*4)] ; ST = autoc[26]+d*data[sample+26] d
- fstp dword [edi + (26*4)] ; autoc[26]+=d*data[sample+26] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (25*4)] ; ST = d*data[sample+25] d
- fadd dword [edi + (25*4)] ; ST = autoc[25]+d*data[sample+25] d
- fstp dword [edi + (25*4)] ; autoc[25]+=d*data[sample+25] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (24*4)] ; ST = d*data[sample+24] d
- fadd dword [edi + (24*4)] ; ST = autoc[24]+d*data[sample+24] d
- fstp dword [edi + (24*4)] ; autoc[24]+=d*data[sample+24] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (23*4)] ; ST = d*data[sample+23] d
- fadd dword [edi + (23*4)] ; ST = autoc[23]+d*data[sample+23] d
- fstp dword [edi + (23*4)] ; autoc[23]+=d*data[sample+23] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (22*4)] ; ST = d*data[sample+22] d
- fadd dword [edi + (22*4)] ; ST = autoc[22]+d*data[sample+22] d
- fstp dword [edi + (22*4)] ; autoc[22]+=d*data[sample+22] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (21*4)] ; ST = d*data[sample+21] d
- fadd dword [edi + (21*4)] ; ST = autoc[21]+d*data[sample+21] d
- fstp dword [edi + (21*4)] ; autoc[21]+=d*data[sample+21] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (20*4)] ; ST = d*data[sample+20] d
- fadd dword [edi + (20*4)] ; ST = autoc[20]+d*data[sample+20] d
- fstp dword [edi + (20*4)] ; autoc[20]+=d*data[sample+20] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (19*4)] ; ST = d*data[sample+19] d
- fadd dword [edi + (19*4)] ; ST = autoc[19]+d*data[sample+19] d
- fstp dword [edi + (19*4)] ; autoc[19]+=d*data[sample+19] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (18*4)] ; ST = d*data[sample+18] d
- fadd dword [edi + (18*4)] ; ST = autoc[18]+d*data[sample+18] d
- fstp dword [edi + (18*4)] ; autoc[18]+=d*data[sample+18] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (17*4)] ; ST = d*data[sample+17] d
- fadd dword [edi + (17*4)] ; ST = autoc[17]+d*data[sample+17] d
- fstp dword [edi + (17*4)] ; autoc[17]+=d*data[sample+17] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (16*4)] ; ST = d*data[sample+16] d
- fadd dword [edi + (16*4)] ; ST = autoc[16]+d*data[sample+16] d
- fstp dword [edi + (16*4)] ; autoc[16]+=d*data[sample+16] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (15*4)] ; ST = d*data[sample+15] d
- fadd dword [edi + (15*4)] ; ST = autoc[15]+d*data[sample+15] d
- fstp dword [edi + (15*4)] ; autoc[15]+=d*data[sample+15] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (14*4)] ; ST = d*data[sample+14] d
- fadd dword [edi + (14*4)] ; ST = autoc[14]+d*data[sample+14] d
- fstp dword [edi + (14*4)] ; autoc[14]+=d*data[sample+14] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (13*4)] ; ST = d*data[sample+13] d
- fadd dword [edi + (13*4)] ; ST = autoc[13]+d*data[sample+13] d
- fstp dword [edi + (13*4)] ; autoc[13]+=d*data[sample+13] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (12*4)] ; ST = d*data[sample+12] d
- fadd dword [edi + (12*4)] ; ST = autoc[12]+d*data[sample+12] d
- fstp dword [edi + (12*4)] ; autoc[12]+=d*data[sample+12] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (11*4)] ; ST = d*data[sample+11] d
- fadd dword [edi + (11*4)] ; ST = autoc[11]+d*data[sample+11] d
- fstp dword [edi + (11*4)] ; autoc[11]+=d*data[sample+11] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (10*4)] ; ST = d*data[sample+10] d
- fadd dword [edi + (10*4)] ; ST = autoc[10]+d*data[sample+10] d
- fstp dword [edi + (10*4)] ; autoc[10]+=d*data[sample+10] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 9*4)] ; ST = d*data[sample+9] d
- fadd dword [edi + ( 9*4)] ; ST = autoc[9]+d*data[sample+9] d
- fstp dword [edi + ( 9*4)] ; autoc[9]+=d*data[sample+9] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 8*4)] ; ST = d*data[sample+8] d
- fadd dword [edi + ( 8*4)] ; ST = autoc[8]+d*data[sample+8] d
- fstp dword [edi + ( 8*4)] ; autoc[8]+=d*data[sample+8] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 7*4)] ; ST = d*data[sample+7] d
- fadd dword [edi + ( 7*4)] ; ST = autoc[7]+d*data[sample+7] d
- fstp dword [edi + ( 7*4)] ; autoc[7]+=d*data[sample+7] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 6*4)] ; ST = d*data[sample+6] d
- fadd dword [edi + ( 6*4)] ; ST = autoc[6]+d*data[sample+6] d
- fstp dword [edi + ( 6*4)] ; autoc[6]+=d*data[sample+6] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 5*4)] ; ST = d*data[sample+4] d
- fadd dword [edi + ( 5*4)] ; ST = autoc[4]+d*data[sample+4] d
- fstp dword [edi + ( 5*4)] ; autoc[4]+=d*data[sample+4] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 4*4)] ; ST = d*data[sample+4] d
- fadd dword [edi + ( 4*4)] ; ST = autoc[4]+d*data[sample+4] d
- fstp dword [edi + ( 4*4)] ; autoc[4]+=d*data[sample+4] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 3*4)] ; ST = d*data[sample+3] d
- fadd dword [edi + ( 3*4)] ; ST = autoc[3]+d*data[sample+3] d
- fstp dword [edi + ( 3*4)] ; autoc[3]+=d*data[sample+3] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 2*4)] ; ST = d*data[sample+2] d
- fadd dword [edi + ( 2*4)] ; ST = autoc[2]+d*data[sample+2] d
- fstp dword [edi + ( 2*4)] ; autoc[2]+=d*data[sample+2] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 1*4)] ; ST = d*data[sample+1] d
- fadd dword [edi + ( 1*4)] ; ST = autoc[1]+d*data[sample+1] d
- fstp dword [edi + ( 1*4)] ; autoc[1]+=d*data[sample+1] ST = d
- fld st0 ; ST = d d
- fmul dword [esi] ; ST = d*data[sample] d WATCHOUT: no displacement byte here!
- fadd dword [edi] ; ST = autoc[0]+d*data[sample] d WATCHOUT: no displacement byte here!
- fstp dword [edi] ; autoc[0]+=d*data[sample] ST = d WATCHOUT: no displacement byte here!
-.jumper1_0:
-
- fstp st0 ; pop d, ST = empty
- add esi, byte 4 ; sample++
- dec ecx
- jz .loop1_end
- fld dword [esi] ; ST = d <- data[sample]
- jmp edx
-.loop1_end:
-
- ; for(; sample < data_len; sample++) {
- ; d = data[sample];
- ; for(coeff = 0; coeff < data_len - sample; coeff++)
- ; autoc[coeff] += d * data[sample+coeff];
- ; }
- mov ecx, [esp + 24] ; ecx <- lag
- dec ecx ; ecx <- lag - 1
- jz near .end ; skip loop if 0 (i.e. lag == 1)
-
- fld dword [esi] ; ST = d <- data[sample]
- mov eax, ecx ; eax <- lag - 1 == data_len - sample the first time through
- ; each iteration is 11 bytes so we need (-eax)*11, so we do (-12*eax + eax)
- lea edx, [eax + eax*2]
- neg edx
- lea edx, [eax + edx*4 + .jumper2_0 - .get_eip2]
- call .mov_eip_to_ebx
-.get_eip2:
- add edx, ebx
- inc edx ; compensate for the shorter opcode on the last iteration
- inc edx ; compensate for the shorter opcode on the last iteration
- inc edx ; compensate for the shorter opcode on the last iteration
- jmp edx
-
- fld st0 ; ST = d d
- fmul dword [esi + (31*4)] ; ST = d*data[sample+31] d
- fadd dword [edi + (31*4)] ; ST = autoc[31]+d*data[sample+31] d
- fstp dword [edi + (31*4)] ; autoc[31]+=d*data[sample+31] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (30*4)] ; ST = d*data[sample+30] d
- fadd dword [edi + (30*4)] ; ST = autoc[30]+d*data[sample+30] d
- fstp dword [edi + (30*4)] ; autoc[30]+=d*data[sample+30] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (29*4)] ; ST = d*data[sample+29] d
- fadd dword [edi + (29*4)] ; ST = autoc[29]+d*data[sample+29] d
- fstp dword [edi + (29*4)] ; autoc[29]+=d*data[sample+29] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (28*4)] ; ST = d*data[sample+28] d
- fadd dword [edi + (28*4)] ; ST = autoc[28]+d*data[sample+28] d
- fstp dword [edi + (28*4)] ; autoc[28]+=d*data[sample+28] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (27*4)] ; ST = d*data[sample+27] d
- fadd dword [edi + (27*4)] ; ST = autoc[27]+d*data[sample+27] d
- fstp dword [edi + (27*4)] ; autoc[27]+=d*data[sample+27] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (26*4)] ; ST = d*data[sample+26] d
- fadd dword [edi + (26*4)] ; ST = autoc[26]+d*data[sample+26] d
- fstp dword [edi + (26*4)] ; autoc[26]+=d*data[sample+26] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (25*4)] ; ST = d*data[sample+25] d
- fadd dword [edi + (25*4)] ; ST = autoc[25]+d*data[sample+25] d
- fstp dword [edi + (25*4)] ; autoc[25]+=d*data[sample+25] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (24*4)] ; ST = d*data[sample+24] d
- fadd dword [edi + (24*4)] ; ST = autoc[24]+d*data[sample+24] d
- fstp dword [edi + (24*4)] ; autoc[24]+=d*data[sample+24] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (23*4)] ; ST = d*data[sample+23] d
- fadd dword [edi + (23*4)] ; ST = autoc[23]+d*data[sample+23] d
- fstp dword [edi + (23*4)] ; autoc[23]+=d*data[sample+23] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (22*4)] ; ST = d*data[sample+22] d
- fadd dword [edi + (22*4)] ; ST = autoc[22]+d*data[sample+22] d
- fstp dword [edi + (22*4)] ; autoc[22]+=d*data[sample+22] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (21*4)] ; ST = d*data[sample+21] d
- fadd dword [edi + (21*4)] ; ST = autoc[21]+d*data[sample+21] d
- fstp dword [edi + (21*4)] ; autoc[21]+=d*data[sample+21] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (20*4)] ; ST = d*data[sample+20] d
- fadd dword [edi + (20*4)] ; ST = autoc[20]+d*data[sample+20] d
- fstp dword [edi + (20*4)] ; autoc[20]+=d*data[sample+20] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (19*4)] ; ST = d*data[sample+19] d
- fadd dword [edi + (19*4)] ; ST = autoc[19]+d*data[sample+19] d
- fstp dword [edi + (19*4)] ; autoc[19]+=d*data[sample+19] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (18*4)] ; ST = d*data[sample+18] d
- fadd dword [edi + (18*4)] ; ST = autoc[18]+d*data[sample+18] d
- fstp dword [edi + (18*4)] ; autoc[18]+=d*data[sample+18] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (17*4)] ; ST = d*data[sample+17] d
- fadd dword [edi + (17*4)] ; ST = autoc[17]+d*data[sample+17] d
- fstp dword [edi + (17*4)] ; autoc[17]+=d*data[sample+17] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (16*4)] ; ST = d*data[sample+16] d
- fadd dword [edi + (16*4)] ; ST = autoc[16]+d*data[sample+16] d
- fstp dword [edi + (16*4)] ; autoc[16]+=d*data[sample+16] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (15*4)] ; ST = d*data[sample+15] d
- fadd dword [edi + (15*4)] ; ST = autoc[15]+d*data[sample+15] d
- fstp dword [edi + (15*4)] ; autoc[15]+=d*data[sample+15] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (14*4)] ; ST = d*data[sample+14] d
- fadd dword [edi + (14*4)] ; ST = autoc[14]+d*data[sample+14] d
- fstp dword [edi + (14*4)] ; autoc[14]+=d*data[sample+14] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (13*4)] ; ST = d*data[sample+13] d
- fadd dword [edi + (13*4)] ; ST = autoc[13]+d*data[sample+13] d
- fstp dword [edi + (13*4)] ; autoc[13]+=d*data[sample+13] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (12*4)] ; ST = d*data[sample+12] d
- fadd dword [edi + (12*4)] ; ST = autoc[12]+d*data[sample+12] d
- fstp dword [edi + (12*4)] ; autoc[12]+=d*data[sample+12] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (11*4)] ; ST = d*data[sample+11] d
- fadd dword [edi + (11*4)] ; ST = autoc[11]+d*data[sample+11] d
- fstp dword [edi + (11*4)] ; autoc[11]+=d*data[sample+11] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + (10*4)] ; ST = d*data[sample+10] d
- fadd dword [edi + (10*4)] ; ST = autoc[10]+d*data[sample+10] d
- fstp dword [edi + (10*4)] ; autoc[10]+=d*data[sample+10] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 9*4)] ; ST = d*data[sample+9] d
- fadd dword [edi + ( 9*4)] ; ST = autoc[9]+d*data[sample+9] d
- fstp dword [edi + ( 9*4)] ; autoc[9]+=d*data[sample+9] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 8*4)] ; ST = d*data[sample+8] d
- fadd dword [edi + ( 8*4)] ; ST = autoc[8]+d*data[sample+8] d
- fstp dword [edi + ( 8*4)] ; autoc[8]+=d*data[sample+8] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 7*4)] ; ST = d*data[sample+7] d
- fadd dword [edi + ( 7*4)] ; ST = autoc[7]+d*data[sample+7] d
- fstp dword [edi + ( 7*4)] ; autoc[7]+=d*data[sample+7] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 6*4)] ; ST = d*data[sample+6] d
- fadd dword [edi + ( 6*4)] ; ST = autoc[6]+d*data[sample+6] d
- fstp dword [edi + ( 6*4)] ; autoc[6]+=d*data[sample+6] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 5*4)] ; ST = d*data[sample+4] d
- fadd dword [edi + ( 5*4)] ; ST = autoc[4]+d*data[sample+4] d
- fstp dword [edi + ( 5*4)] ; autoc[4]+=d*data[sample+4] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 4*4)] ; ST = d*data[sample+4] d
- fadd dword [edi + ( 4*4)] ; ST = autoc[4]+d*data[sample+4] d
- fstp dword [edi + ( 4*4)] ; autoc[4]+=d*data[sample+4] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 3*4)] ; ST = d*data[sample+3] d
- fadd dword [edi + ( 3*4)] ; ST = autoc[3]+d*data[sample+3] d
- fstp dword [edi + ( 3*4)] ; autoc[3]+=d*data[sample+3] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 2*4)] ; ST = d*data[sample+2] d
- fadd dword [edi + ( 2*4)] ; ST = autoc[2]+d*data[sample+2] d
- fstp dword [edi + ( 2*4)] ; autoc[2]+=d*data[sample+2] ST = d
- fld st0 ; ST = d d
- fmul dword [esi + ( 1*4)] ; ST = d*data[sample+1] d
- fadd dword [edi + ( 1*4)] ; ST = autoc[1]+d*data[sample+1] d
- fstp dword [edi + ( 1*4)] ; autoc[1]+=d*data[sample+1] ST = d
- fld st0 ; ST = d d
- fmul dword [esi] ; ST = d*data[sample] d WATCHOUT: no displacement byte here!
- fadd dword [edi] ; ST = autoc[0]+d*data[sample] d WATCHOUT: no displacement byte here!
- fstp dword [edi] ; autoc[0]+=d*data[sample] ST = d WATCHOUT: no displacement byte here!
-.jumper2_0:
-
- fstp st0 ; pop d, ST = empty
- add esi, byte 4 ; sample++
- dec ecx
- jz .loop2_end
- add edx, byte 11 ; adjust our inner loop counter by adjusting the jump target
- fld dword [esi] ; ST = d <- data[sample]
- jmp edx
-.loop2_end:
-
-.end:
- pop ebx
- pop edi
- pop esi
- ret
-
- ALIGN 16
-cident FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old
- ;[esp + 16] == autoc[]
- ;[esp + 12] == lag
- ;[esp + 8] == data_len
- ;[esp + 4] == data[]
-
- ;ASSERT(lag > 0)
- ;ASSERT(lag <= 4)
- ;ASSERT(lag <= data_len)
-
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] = 0.0;
- xorps xmm5, xmm5
-
- mov edx, [esp + 8] ; edx == data_len
- mov eax, [esp + 4] ; eax == &data[sample] <- &data[0]
-
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[0]
- add eax, 4
- movaps xmm2, xmm0 ; xmm2 = 0,0,0,data[0]
- shufps xmm0, xmm0, 0 ; xmm0 == data[sample],data[sample],data[sample],data[sample] = data[0],data[0],data[0],data[0]
-.warmup: ; xmm2 == data[sample-3],data[sample-2],data[sample-1],data[sample]
- mulps xmm0, xmm2 ; xmm0 = xmm0 * xmm2
- addps xmm5, xmm0 ; xmm5 += xmm0 * xmm2
- dec edx
- jz .loop_end
- ALIGN 16
-.loop_start:
- ; start by reading the next sample
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[sample]
- add eax, 4
- shufps xmm0, xmm0, 0 ; xmm0 = data[sample],data[sample],data[sample],data[sample]
- shufps xmm2, xmm2, 93h ; 93h=2-1-0-3 => xmm2 gets rotated left by one float
- movss xmm2, xmm0
- mulps xmm0, xmm2 ; xmm0 = xmm0 * xmm2
- addps xmm5, xmm0 ; xmm5 += xmm0 * xmm2
- dec edx
- jnz .loop_start
-.loop_end:
- ; store autoc
- mov edx, [esp + 16] ; edx == autoc
- movups [edx], xmm5
-
-.end:
- ret
-
- ALIGN 16
-cident FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old
- ;[esp + 16] == autoc[]
- ;[esp + 12] == lag
- ;[esp + 8] == data_len
- ;[esp + 4] == data[]
-
- ;ASSERT(lag > 0)
- ;ASSERT(lag <= 8)
- ;ASSERT(lag <= data_len)
-
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] = 0.0;
- xorps xmm5, xmm5
- xorps xmm6, xmm6
-
- mov edx, [esp + 8] ; edx == data_len
- mov eax, [esp + 4] ; eax == &data[sample] <- &data[0]
-
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[0]
- add eax, 4
- movaps xmm2, xmm0 ; xmm2 = 0,0,0,data[0]
- shufps xmm0, xmm0, 0 ; xmm0 == data[sample],data[sample],data[sample],data[sample] = data[0],data[0],data[0],data[0]
- movaps xmm1, xmm0 ; xmm1 == data[sample],data[sample],data[sample],data[sample] = data[0],data[0],data[0],data[0]
- xorps xmm3, xmm3 ; xmm3 = 0,0,0,0
-.warmup: ; xmm3:xmm2 == data[sample-7],data[sample-6],...,data[sample]
- mulps xmm0, xmm2
- mulps xmm1, xmm3 ; xmm1:xmm0 = xmm1:xmm0 * xmm3:xmm2
- addps xmm5, xmm0
- addps xmm6, xmm1 ; xmm6:xmm5 += xmm1:xmm0 * xmm3:xmm2
- dec edx
- jz .loop_end
- ALIGN 16
-.loop_start:
- ; start by reading the next sample
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[sample]
- ; here we reorder the instructions; see the (#) indexes for a logical order
- shufps xmm2, xmm2, 93h ; (3) 93h=2-1-0-3 => xmm2 gets rotated left by one float
- add eax, 4 ; (0)
- shufps xmm3, xmm3, 93h ; (4) 93h=2-1-0-3 => xmm3 gets rotated left by one float
- shufps xmm0, xmm0, 0 ; (1) xmm0 = data[sample],data[sample],data[sample],data[sample]
- movss xmm3, xmm2 ; (5)
- movaps xmm1, xmm0 ; (2) xmm1 = data[sample],data[sample],data[sample],data[sample]
- movss xmm2, xmm0 ; (6)
- mulps xmm1, xmm3 ; (8)
- mulps xmm0, xmm2 ; (7) xmm1:xmm0 = xmm1:xmm0 * xmm3:xmm2
- addps xmm6, xmm1 ; (10)
- addps xmm5, xmm0 ; (9) xmm6:xmm5 += xmm1:xmm0 * xmm3:xmm2
- dec edx
- jnz .loop_start
-.loop_end:
- ; store autoc
- mov edx, [esp + 16] ; edx == autoc
- movups [edx], xmm5
- movups [edx + 16], xmm6
-
-.end:
- ret
-
- ALIGN 16
-cident FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old
- ;[esp + 16] == autoc[]
- ;[esp + 12] == lag
- ;[esp + 8] == data_len
- ;[esp + 4] == data[]
-
- ;ASSERT(lag > 0)
- ;ASSERT(lag <= 12)
- ;ASSERT(lag <= data_len)
-
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] = 0.0;
- xorps xmm5, xmm5
- xorps xmm6, xmm6
- xorps xmm7, xmm7
-
- mov edx, [esp + 8] ; edx == data_len
- mov eax, [esp + 4] ; eax == &data[sample] <- &data[0]
-
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[0]
- add eax, 4
- movaps xmm2, xmm0 ; xmm2 = 0,0,0,data[0]
- shufps xmm0, xmm0, 0 ; xmm0 == data[sample],data[sample],data[sample],data[sample] = data[0],data[0],data[0],data[0]
- xorps xmm3, xmm3 ; xmm3 = 0,0,0,0
- xorps xmm4, xmm4 ; xmm4 = 0,0,0,0
-.warmup: ; xmm3:xmm2 == data[sample-7],data[sample-6],...,data[sample]
- movaps xmm1, xmm0
- mulps xmm1, xmm2
- addps xmm5, xmm1
- movaps xmm1, xmm0
- mulps xmm1, xmm3
- addps xmm6, xmm1
- mulps xmm0, xmm4
- addps xmm7, xmm0 ; xmm7:xmm6:xmm5 += xmm0:xmm0:xmm0 * xmm4:xmm3:xmm2
- dec edx
- jz .loop_end
- ALIGN 16
-.loop_start:
- ; start by reading the next sample
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[sample]
- add eax, 4
- shufps xmm0, xmm0, 0 ; xmm0 = data[sample],data[sample],data[sample],data[sample]
-
- ; shift xmm4:xmm3:xmm2 left by one float
- shufps xmm2, xmm2, 93h ; 93h=2-1-0-3 => xmm2 gets rotated left by one float
- shufps xmm3, xmm3, 93h ; 93h=2-1-0-3 => xmm3 gets rotated left by one float
- shufps xmm4, xmm4, 93h ; 93h=2-1-0-3 => xmm4 gets rotated left by one float
- movss xmm4, xmm3
- movss xmm3, xmm2
- movss xmm2, xmm0
-
- ; xmm7:xmm6:xmm5 += xmm0:xmm0:xmm0 * xmm4:xmm3:xmm2
- movaps xmm1, xmm0
- mulps xmm1, xmm2
- addps xmm5, xmm1
- movaps xmm1, xmm0
- mulps xmm1, xmm3
- addps xmm6, xmm1
- mulps xmm0, xmm4
- addps xmm7, xmm0
-
- dec edx
- jnz .loop_start
-.loop_end:
- ; store autoc
- mov edx, [esp + 16] ; edx == autoc
- movups [edx], xmm5
- movups [edx + 16], xmm6
- movups [edx + 32], xmm7
-
-.end:
- ret
-
- ALIGN 16
-cident FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old
- ;[ebp + 20] == autoc[]
- ;[ebp + 16] == lag
- ;[ebp + 12] == data_len
- ;[ebp + 8] == data[]
- ;[esp] == __m128
- ;[esp + 16] == __m128
-
- push ebp
- mov ebp, esp
- and esp, -16 ; stack realign for SSE instructions 'movaps' and 'addps'
- sub esp, 32
-
- ;ASSERT(lag > 0)
- ;ASSERT(lag <= 12)
- ;ASSERT(lag <= data_len)
- ;ASSERT(data_len > 0)
-
- ; for(coeff = 0; coeff < lag; coeff++)
- ; autoc[coeff] = 0.0;
- xorps xmm5, xmm5
- xorps xmm6, xmm6
- movaps [esp], xmm5
- movaps [esp + 16], xmm6
-
- mov edx, [ebp + 12] ; edx == data_len
- mov eax, [ebp + 8] ; eax == &data[sample] <- &data[0]
-
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[0]
- add eax, 4
- movaps xmm1, xmm0 ; xmm1 = 0,0,0,data[0]
- shufps xmm0, xmm0, 0 ; xmm0 == data[sample],data[sample],data[sample],data[sample] = data[0],data[0],data[0],data[0]
- xorps xmm2, xmm2 ; xmm2 = 0,0,0,0
- xorps xmm3, xmm3 ; xmm3 = 0,0,0,0
- xorps xmm4, xmm4 ; xmm4 = 0,0,0,0
- movaps xmm7, xmm0
- mulps xmm7, xmm1
- addps xmm5, xmm7
- dec edx
- jz .loop_end
- ALIGN 16
-.loop_start:
- ; start by reading the next sample
- movss xmm0, [eax] ; xmm0 = 0,0,0,data[sample]
- add eax, 4
- shufps xmm0, xmm0, 0 ; xmm0 = data[sample],data[sample],data[sample],data[sample]
-
- ; shift xmm4:xmm3:xmm2:xmm1 left by one float
- shufps xmm1, xmm1, 93h
- shufps xmm2, xmm2, 93h
- shufps xmm3, xmm3, 93h
- shufps xmm4, xmm4, 93h
- movss xmm4, xmm3
- movss xmm3, xmm2
- movss xmm2, xmm1
- movss xmm1, xmm0
-
- ; xmmB:xmmA:xmm6:xmm5 += xmm0:xmm0:xmm0:xmm0 * xmm4:xmm3:xmm2:xmm1
- movaps xmm7, xmm0
- mulps xmm7, xmm1
- addps xmm5, xmm7
- movaps xmm7, xmm0
- mulps xmm7, xmm2
- addps xmm6, xmm7
- movaps xmm7, xmm0
- mulps xmm7, xmm3
- mulps xmm0, xmm4
- addps xmm7, [esp]
- addps xmm0, [esp + 16]
- movaps [esp], xmm7
- movaps [esp + 16], xmm0
-
- dec edx
- jnz .loop_start
-.loop_end:
- ; store autoc
- mov edx, [ebp + 20] ; edx == autoc
- movups [edx], xmm5
- movups [edx + 16], xmm6
- movaps xmm5, [esp]
- movaps xmm6, [esp + 16]
- movups [edx + 32], xmm5
- movups [edx + 48], xmm6
-.end:
- mov esp, ebp
- pop ebp
- ret
-
-;void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-;
-; for(i = 0; i < data_len; i++) {
-; sum = 0;
-; for(j = 0; j < order; j++)
-; sum += qlp_coeff[j] * data[i-j-1];
-; residual[i] = data[i] - (sum >> lp_quantization);
-; }
-;
- ALIGN 16
-cident FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32
- ;[esp + 40] residual[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] data[]
-
- ;ASSERT(order > 0)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov esi, [esp + 20] ; esi = data[]
- mov edi, [esp + 40] ; edi = residual[]
- mov eax, [esp + 32] ; eax = order
- mov ebx, [esp + 24] ; ebx = data_len
-
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
-.begin:
- cmp eax, byte 1
- jg short .i_1more
-
- mov ecx, [esp + 28]
- mov edx, [ecx] ; edx = qlp_coeff[0]
- mov eax, [esi - 4] ; eax = data[-1]
- mov ecx, [esp + 36] ; cl = lp_quantization
- ALIGN 16
-.i_1_loop_i:
- imul eax, edx
- sar eax, cl
- neg eax
- add eax, [esi]
- mov [edi], eax
- mov eax, [esi]
- add edi, byte 4
- add esi, byte 4
- dec ebx
- jnz .i_1_loop_i
-
- jmp .end
-
-.i_1more:
- cmp eax, byte 32 ; for order <= 32 there is a faster routine
- jbe short .i_32
-
- ; This version is here just for completeness, since FLAC__MAX_LPC_ORDER == 32
- ALIGN 16
-.i_32more_loop_i:
- xor ebp, ebp
- mov ecx, [esp + 32]
- mov edx, ecx
- shl edx, 2
- add edx, [esp + 28]
- neg ecx
- ALIGN 16
-.i_32more_loop_j:
- sub edx, byte 4
- mov eax, [edx]
- imul eax, [esi + 4 * ecx]
- add ebp, eax
- inc ecx
- jnz short .i_32more_loop_j
-
- mov ecx, [esp + 36]
- sar ebp, cl
- neg ebp
- add ebp, [esi]
- mov [edi], ebp
- add esi, byte 4
- add edi, byte 4
-
- dec ebx
- jnz .i_32more_loop_i
-
- jmp .end
-
-.mov_eip_to_eax:
- mov eax, [esp]
- ret
-
-.i_32:
- sub edi, esi
- neg eax
- lea edx, [eax + eax * 8 + .jumper_0 - .get_eip0]
- call .mov_eip_to_eax
-.get_eip0:
- add edx, eax
- inc edx
- mov eax, [esp + 28] ; eax = qlp_coeff[]
- xor ebp, ebp
- jmp edx
-
- mov ecx, [eax + 124]
- imul ecx, [esi - 128]
- add ebp, ecx
- mov ecx, [eax + 120]
- imul ecx, [esi - 124]
- add ebp, ecx
- mov ecx, [eax + 116]
- imul ecx, [esi - 120]
- add ebp, ecx
- mov ecx, [eax + 112]
- imul ecx, [esi - 116]
- add ebp, ecx
- mov ecx, [eax + 108]
- imul ecx, [esi - 112]
- add ebp, ecx
- mov ecx, [eax + 104]
- imul ecx, [esi - 108]
- add ebp, ecx
- mov ecx, [eax + 100]
- imul ecx, [esi - 104]
- add ebp, ecx
- mov ecx, [eax + 96]
- imul ecx, [esi - 100]
- add ebp, ecx
- mov ecx, [eax + 92]
- imul ecx, [esi - 96]
- add ebp, ecx
- mov ecx, [eax + 88]
- imul ecx, [esi - 92]
- add ebp, ecx
- mov ecx, [eax + 84]
- imul ecx, [esi - 88]
- add ebp, ecx
- mov ecx, [eax + 80]
- imul ecx, [esi - 84]
- add ebp, ecx
- mov ecx, [eax + 76]
- imul ecx, [esi - 80]
- add ebp, ecx
- mov ecx, [eax + 72]
- imul ecx, [esi - 76]
- add ebp, ecx
- mov ecx, [eax + 68]
- imul ecx, [esi - 72]
- add ebp, ecx
- mov ecx, [eax + 64]
- imul ecx, [esi - 68]
- add ebp, ecx
- mov ecx, [eax + 60]
- imul ecx, [esi - 64]
- add ebp, ecx
- mov ecx, [eax + 56]
- imul ecx, [esi - 60]
- add ebp, ecx
- mov ecx, [eax + 52]
- imul ecx, [esi - 56]
- add ebp, ecx
- mov ecx, [eax + 48]
- imul ecx, [esi - 52]
- add ebp, ecx
- mov ecx, [eax + 44]
- imul ecx, [esi - 48]
- add ebp, ecx
- mov ecx, [eax + 40]
- imul ecx, [esi - 44]
- add ebp, ecx
- mov ecx, [eax + 36]
- imul ecx, [esi - 40]
- add ebp, ecx
- mov ecx, [eax + 32]
- imul ecx, [esi - 36]
- add ebp, ecx
- mov ecx, [eax + 28]
- imul ecx, [esi - 32]
- add ebp, ecx
- mov ecx, [eax + 24]
- imul ecx, [esi - 28]
- add ebp, ecx
- mov ecx, [eax + 20]
- imul ecx, [esi - 24]
- add ebp, ecx
- mov ecx, [eax + 16]
- imul ecx, [esi - 20]
- add ebp, ecx
- mov ecx, [eax + 12]
- imul ecx, [esi - 16]
- add ebp, ecx
- mov ecx, [eax + 8]
- imul ecx, [esi - 12]
- add ebp, ecx
- mov ecx, [eax + 4]
- imul ecx, [esi - 8]
- add ebp, ecx
- mov ecx, [eax] ; there is one byte missing
- imul ecx, [esi - 4]
- add ebp, ecx
-.jumper_0:
-
- mov ecx, [esp + 36]
- sar ebp, cl
- neg ebp
- add ebp, [esi]
- mov [edi + esi], ebp
- add esi, byte 4
-
- dec ebx
- jz short .end
- xor ebp, ebp
- jmp edx
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; WATCHOUT: this routine works on 16 bit data which means bits-per-sample for
-; the channel and qlp_coeffs must be <= 16. Especially note that this routine
-; cannot be used for side-channel coded 16bps channels since the effective bps
-; is 17.
- ALIGN 16
-cident FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx
- ;[esp + 40] residual[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] data[]
-
- ;ASSERT(order > 0)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov esi, [esp + 20] ; esi = data[]
- mov edi, [esp + 40] ; edi = residual[]
- mov eax, [esp + 32] ; eax = order
- mov ebx, [esp + 24] ; ebx = data_len
-
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
- dec ebx
- test ebx, ebx
- jz near .last_one
-
- mov edx, [esp + 28] ; edx = qlp_coeff[]
- movd mm6, [esp + 36] ; mm6 = 0:lp_quantization
- mov ebp, esp
-
- and esp, 0xfffffff8
-
- xor ecx, ecx
-.copy_qlp_loop:
- push word [edx + 4 * ecx]
- inc ecx
- cmp ecx, eax
- jnz short .copy_qlp_loop
-
- and ecx, 0x3
- test ecx, ecx
- je short .za_end
- sub ecx, byte 4
-.za_loop:
- push word 0
- inc eax
- inc ecx
- jnz short .za_loop
-.za_end:
-
- movq mm5, [esp + 2 * eax - 8]
- movd mm4, [esi - 16]
- punpckldq mm4, [esi - 12]
- movd mm0, [esi - 8]
- punpckldq mm0, [esi - 4]
- packssdw mm4, mm0
-
- cmp eax, byte 4
- jnbe short .mmx_4more
-
- ALIGN 16
-.mmx_4_loop_i:
- movd mm1, [esi]
- movq mm3, mm4
- punpckldq mm1, [esi + 4]
- psrlq mm4, 16
- movq mm0, mm1
- psllq mm0, 48
- por mm4, mm0
- movq mm2, mm4
- psrlq mm4, 16
- pxor mm0, mm0
- punpckhdq mm0, mm1
- pmaddwd mm3, mm5
- pmaddwd mm2, mm5
- psllq mm0, 16
- por mm4, mm0
- movq mm0, mm3
- punpckldq mm3, mm2
- punpckhdq mm0, mm2
- paddd mm3, mm0
- psrad mm3, mm6
- psubd mm1, mm3
- movd [edi], mm1
- punpckhdq mm1, mm1
- movd [edi + 4], mm1
-
- add edi, byte 8
- add esi, byte 8
-
- sub ebx, 2
- jg .mmx_4_loop_i
- jmp .mmx_end
-
-.mmx_4more:
- shl eax, 2
- neg eax
- add eax, byte 16
-
- ALIGN 16
-.mmx_4more_loop_i:
- movd mm1, [esi]
- punpckldq mm1, [esi + 4]
- movq mm3, mm4
- psrlq mm4, 16
- movq mm0, mm1
- psllq mm0, 48
- por mm4, mm0
- movq mm2, mm4
- psrlq mm4, 16
- pxor mm0, mm0
- punpckhdq mm0, mm1
- pmaddwd mm3, mm5
- pmaddwd mm2, mm5
- psllq mm0, 16
- por mm4, mm0
-
- mov ecx, esi
- add ecx, eax
- mov edx, esp
-
- ALIGN 16
-.mmx_4more_loop_j:
- movd mm0, [ecx - 16]
- movd mm7, [ecx - 8]
- punpckldq mm0, [ecx - 12]
- punpckldq mm7, [ecx - 4]
- packssdw mm0, mm7
- pmaddwd mm0, [edx]
- punpckhdq mm7, mm7
- paddd mm3, mm0
- movd mm0, [ecx - 12]
- punpckldq mm0, [ecx - 8]
- punpckldq mm7, [ecx]
- packssdw mm0, mm7
- pmaddwd mm0, [edx]
- paddd mm2, mm0
-
- add edx, byte 8
- add ecx, byte 16
- cmp ecx, esi
- jnz .mmx_4more_loop_j
-
- movq mm0, mm3
- punpckldq mm3, mm2
- punpckhdq mm0, mm2
- paddd mm3, mm0
- psrad mm3, mm6
- psubd mm1, mm3
- movd [edi], mm1
- punpckhdq mm1, mm1
- movd [edi + 4], mm1
-
- add edi, byte 8
- add esi, byte 8
-
- sub ebx, 2
- jg near .mmx_4more_loop_i
-
-.mmx_end:
- emms
- mov esp, ebp
-.last_one:
- mov eax, [esp + 32]
- inc ebx
- jnz near FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32.begin
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; **********************************************************************
-;
-; void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-; {
-; unsigned i, j;
-; FLAC__int32 sum;
-;
-; FLAC__ASSERT(order > 0);
-;
-; for(i = 0; i < data_len; i++) {
-; sum = 0;
-; for(j = 0; j < order; j++)
-; sum += qlp_coeff[j] * data[i-j-1];
-; data[i] = residual[i] + (sum >> lp_quantization);
-; }
-; }
- ALIGN 16
-cident FLAC__lpc_restore_signal_asm_ia32
- ;[esp + 40] data[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] residual[]
-
- ;ASSERT(order > 0)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov esi, [esp + 20] ; esi = residual[]
- mov edi, [esp + 40] ; edi = data[]
- mov eax, [esp + 32] ; eax = order
- mov ebx, [esp + 24] ; ebx = data_len
-
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
-
-.begin:
- cmp eax, byte 1
- jg short .x87_1more
-
- mov ecx, [esp + 28]
- mov edx, [ecx]
- mov eax, [edi - 4]
- mov ecx, [esp + 36]
- ALIGN 16
-.x87_1_loop_i:
- imul eax, edx
- sar eax, cl
- add eax, [esi]
- mov [edi], eax
- add esi, byte 4
- add edi, byte 4
- dec ebx
- jnz .x87_1_loop_i
-
- jmp .end
-
-.x87_1more:
- cmp eax, byte 32 ; for order <= 32 there is a faster routine
- jbe short .x87_32
-
- ; This version is here just for completeness, since FLAC__MAX_LPC_ORDER == 32
- ALIGN 16
-.x87_32more_loop_i:
- xor ebp, ebp
- mov ecx, [esp + 32]
- mov edx, ecx
- shl edx, 2
- add edx, [esp + 28]
- neg ecx
- ALIGN 16
-.x87_32more_loop_j:
- sub edx, byte 4
- mov eax, [edx]
- imul eax, [edi + 4 * ecx]
- add ebp, eax
- inc ecx
- jnz short .x87_32more_loop_j
-
- mov ecx, [esp + 36]
- sar ebp, cl
- add ebp, [esi]
- mov [edi], ebp
- add edi, byte 4
- add esi, byte 4
-
- dec ebx
- jnz .x87_32more_loop_i
-
- jmp .end
-
-.mov_eip_to_eax:
- mov eax, [esp]
- ret
-
-.x87_32:
- sub esi, edi
- neg eax
- lea edx, [eax + eax * 8 + .jumper_0 - .get_eip0]
- call .mov_eip_to_eax
-.get_eip0:
- add edx, eax
- inc edx ; compensate for the shorter opcode on the last iteration
- mov eax, [esp + 28] ; eax = qlp_coeff[]
- xor ebp, ebp
- jmp edx
-
- mov ecx, [eax + 124] ; ecx = qlp_coeff[31]
- imul ecx, [edi - 128] ; ecx = qlp_coeff[31] * data[i-32]
- add ebp, ecx ; sum += qlp_coeff[31] * data[i-32]
- mov ecx, [eax + 120] ; ecx = qlp_coeff[30]
- imul ecx, [edi - 124] ; ecx = qlp_coeff[30] * data[i-31]
- add ebp, ecx ; sum += qlp_coeff[30] * data[i-31]
- mov ecx, [eax + 116] ; ecx = qlp_coeff[29]
- imul ecx, [edi - 120] ; ecx = qlp_coeff[29] * data[i-30]
- add ebp, ecx ; sum += qlp_coeff[29] * data[i-30]
- mov ecx, [eax + 112] ; ecx = qlp_coeff[28]
- imul ecx, [edi - 116] ; ecx = qlp_coeff[28] * data[i-29]
- add ebp, ecx ; sum += qlp_coeff[28] * data[i-29]
- mov ecx, [eax + 108] ; ecx = qlp_coeff[27]
- imul ecx, [edi - 112] ; ecx = qlp_coeff[27] * data[i-28]
- add ebp, ecx ; sum += qlp_coeff[27] * data[i-28]
- mov ecx, [eax + 104] ; ecx = qlp_coeff[26]
- imul ecx, [edi - 108] ; ecx = qlp_coeff[26] * data[i-27]
- add ebp, ecx ; sum += qlp_coeff[26] * data[i-27]
- mov ecx, [eax + 100] ; ecx = qlp_coeff[25]
- imul ecx, [edi - 104] ; ecx = qlp_coeff[25] * data[i-26]
- add ebp, ecx ; sum += qlp_coeff[25] * data[i-26]
- mov ecx, [eax + 96] ; ecx = qlp_coeff[24]
- imul ecx, [edi - 100] ; ecx = qlp_coeff[24] * data[i-25]
- add ebp, ecx ; sum += qlp_coeff[24] * data[i-25]
- mov ecx, [eax + 92] ; ecx = qlp_coeff[23]
- imul ecx, [edi - 96] ; ecx = qlp_coeff[23] * data[i-24]
- add ebp, ecx ; sum += qlp_coeff[23] * data[i-24]
- mov ecx, [eax + 88] ; ecx = qlp_coeff[22]
- imul ecx, [edi - 92] ; ecx = qlp_coeff[22] * data[i-23]
- add ebp, ecx ; sum += qlp_coeff[22] * data[i-23]
- mov ecx, [eax + 84] ; ecx = qlp_coeff[21]
- imul ecx, [edi - 88] ; ecx = qlp_coeff[21] * data[i-22]
- add ebp, ecx ; sum += qlp_coeff[21] * data[i-22]
- mov ecx, [eax + 80] ; ecx = qlp_coeff[20]
- imul ecx, [edi - 84] ; ecx = qlp_coeff[20] * data[i-21]
- add ebp, ecx ; sum += qlp_coeff[20] * data[i-21]
- mov ecx, [eax + 76] ; ecx = qlp_coeff[19]
- imul ecx, [edi - 80] ; ecx = qlp_coeff[19] * data[i-20]
- add ebp, ecx ; sum += qlp_coeff[19] * data[i-20]
- mov ecx, [eax + 72] ; ecx = qlp_coeff[18]
- imul ecx, [edi - 76] ; ecx = qlp_coeff[18] * data[i-19]
- add ebp, ecx ; sum += qlp_coeff[18] * data[i-19]
- mov ecx, [eax + 68] ; ecx = qlp_coeff[17]
- imul ecx, [edi - 72] ; ecx = qlp_coeff[17] * data[i-18]
- add ebp, ecx ; sum += qlp_coeff[17] * data[i-18]
- mov ecx, [eax + 64] ; ecx = qlp_coeff[16]
- imul ecx, [edi - 68] ; ecx = qlp_coeff[16] * data[i-17]
- add ebp, ecx ; sum += qlp_coeff[16] * data[i-17]
- mov ecx, [eax + 60] ; ecx = qlp_coeff[15]
- imul ecx, [edi - 64] ; ecx = qlp_coeff[15] * data[i-16]
- add ebp, ecx ; sum += qlp_coeff[15] * data[i-16]
- mov ecx, [eax + 56] ; ecx = qlp_coeff[14]
- imul ecx, [edi - 60] ; ecx = qlp_coeff[14] * data[i-15]
- add ebp, ecx ; sum += qlp_coeff[14] * data[i-15]
- mov ecx, [eax + 52] ; ecx = qlp_coeff[13]
- imul ecx, [edi - 56] ; ecx = qlp_coeff[13] * data[i-14]
- add ebp, ecx ; sum += qlp_coeff[13] * data[i-14]
- mov ecx, [eax + 48] ; ecx = qlp_coeff[12]
- imul ecx, [edi - 52] ; ecx = qlp_coeff[12] * data[i-13]
- add ebp, ecx ; sum += qlp_coeff[12] * data[i-13]
- mov ecx, [eax + 44] ; ecx = qlp_coeff[11]
- imul ecx, [edi - 48] ; ecx = qlp_coeff[11] * data[i-12]
- add ebp, ecx ; sum += qlp_coeff[11] * data[i-12]
- mov ecx, [eax + 40] ; ecx = qlp_coeff[10]
- imul ecx, [edi - 44] ; ecx = qlp_coeff[10] * data[i-11]
- add ebp, ecx ; sum += qlp_coeff[10] * data[i-11]
- mov ecx, [eax + 36] ; ecx = qlp_coeff[ 9]
- imul ecx, [edi - 40] ; ecx = qlp_coeff[ 9] * data[i-10]
- add ebp, ecx ; sum += qlp_coeff[ 9] * data[i-10]
- mov ecx, [eax + 32] ; ecx = qlp_coeff[ 8]
- imul ecx, [edi - 36] ; ecx = qlp_coeff[ 8] * data[i- 9]
- add ebp, ecx ; sum += qlp_coeff[ 8] * data[i- 9]
- mov ecx, [eax + 28] ; ecx = qlp_coeff[ 7]
- imul ecx, [edi - 32] ; ecx = qlp_coeff[ 7] * data[i- 8]
- add ebp, ecx ; sum += qlp_coeff[ 7] * data[i- 8]
- mov ecx, [eax + 24] ; ecx = qlp_coeff[ 6]
- imul ecx, [edi - 28] ; ecx = qlp_coeff[ 6] * data[i- 7]
- add ebp, ecx ; sum += qlp_coeff[ 6] * data[i- 7]
- mov ecx, [eax + 20] ; ecx = qlp_coeff[ 5]
- imul ecx, [edi - 24] ; ecx = qlp_coeff[ 5] * data[i- 6]
- add ebp, ecx ; sum += qlp_coeff[ 5] * data[i- 6]
- mov ecx, [eax + 16] ; ecx = qlp_coeff[ 4]
- imul ecx, [edi - 20] ; ecx = qlp_coeff[ 4] * data[i- 5]
- add ebp, ecx ; sum += qlp_coeff[ 4] * data[i- 5]
- mov ecx, [eax + 12] ; ecx = qlp_coeff[ 3]
- imul ecx, [edi - 16] ; ecx = qlp_coeff[ 3] * data[i- 4]
- add ebp, ecx ; sum += qlp_coeff[ 3] * data[i- 4]
- mov ecx, [eax + 8] ; ecx = qlp_coeff[ 2]
- imul ecx, [edi - 12] ; ecx = qlp_coeff[ 2] * data[i- 3]
- add ebp, ecx ; sum += qlp_coeff[ 2] * data[i- 3]
- mov ecx, [eax + 4] ; ecx = qlp_coeff[ 1]
- imul ecx, [edi - 8] ; ecx = qlp_coeff[ 1] * data[i- 2]
- add ebp, ecx ; sum += qlp_coeff[ 1] * data[i- 2]
- mov ecx, [eax] ; ecx = qlp_coeff[ 0] (NOTE: one byte missing from instruction)
- imul ecx, [edi - 4] ; ecx = qlp_coeff[ 0] * data[i- 1]
- add ebp, ecx ; sum += qlp_coeff[ 0] * data[i- 1]
-.jumper_0:
-
- mov ecx, [esp + 36]
- sar ebp, cl ; ebp = (sum >> lp_quantization)
- add ebp, [esi + edi] ; ebp = residual[i] + (sum >> lp_quantization)
- mov [edi], ebp ; data[i] = residual[i] + (sum >> lp_quantization)
- add edi, byte 4
-
- dec ebx
- jz short .end
- xor ebp, ebp
- jmp edx
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; WATCHOUT: this routine works on 16 bit data which means bits-per-sample for
-; the channel and qlp_coeffs must be <= 16. Especially note that this routine
-; cannot be used for side-channel coded 16bps channels since the effective bps
-; is 17.
-; WATCHOUT: this routine requires that each data array have a buffer of up to
-; 3 zeroes in front (at negative indices) for alignment purposes, i.e. for each
-; channel n, data[n][-1] through data[n][-3] should be accessible and zero.
- ALIGN 16
-cident FLAC__lpc_restore_signal_asm_ia32_mmx
- ;[esp + 40] data[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] residual[]
-
- ;ASSERT(order > 0)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov esi, [esp + 20]
- mov edi, [esp + 40]
- mov eax, [esp + 32]
- mov ebx, [esp + 24]
-
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
- cmp eax, byte 4
- jb near FLAC__lpc_restore_signal_asm_ia32.begin
-
- mov edx, [esp + 28]
- movd mm6, [esp + 36]
- mov ebp, esp
-
- and esp, 0xfffffff8
-
- xor ecx, ecx
-.copy_qlp_loop:
- push word [edx + 4 * ecx]
- inc ecx
- cmp ecx, eax
- jnz short .copy_qlp_loop
-
- and ecx, 0x3
- test ecx, ecx
- je short .za_end
- sub ecx, byte 4
-.za_loop:
- push word 0
- inc eax
- inc ecx
- jnz short .za_loop
-.za_end:
-
- movq mm5, [esp + 2 * eax - 8]
- movd mm4, [edi - 16]
- punpckldq mm4, [edi - 12]
- movd mm0, [edi - 8]
- punpckldq mm0, [edi - 4]
- packssdw mm4, mm0
-
- cmp eax, byte 4
- jnbe short .mmx_4more
-
- ALIGN 16
-.mmx_4_loop_i:
- movq mm7, mm4
- pmaddwd mm7, mm5
- movq mm0, mm7
- punpckhdq mm7, mm7
- paddd mm7, mm0
- psrad mm7, mm6
- movd mm1, [esi]
- paddd mm7, mm1
- movd [edi], mm7
- psllq mm7, 48
- psrlq mm4, 16
- por mm4, mm7
-
- add esi, byte 4
- add edi, byte 4
-
- dec ebx
- jnz .mmx_4_loop_i
- jmp .mmx_end
-.mmx_4more:
- shl eax, 2
- neg eax
- add eax, byte 16
- ALIGN 16
-.mmx_4more_loop_i:
- mov ecx, edi
- add ecx, eax
- mov edx, esp
-
- movq mm7, mm4
- pmaddwd mm7, mm5
-
- ALIGN 16
-.mmx_4more_loop_j:
- movd mm0, [ecx - 16]
- punpckldq mm0, [ecx - 12]
- movd mm1, [ecx - 8]
- punpckldq mm1, [ecx - 4]
- packssdw mm0, mm1
- pmaddwd mm0, [edx]
- paddd mm7, mm0
-
- add edx, byte 8
- add ecx, byte 16
- cmp ecx, edi
- jnz .mmx_4more_loop_j
-
- movq mm0, mm7
- punpckhdq mm7, mm7
- paddd mm7, mm0
- psrad mm7, mm6
- movd mm1, [esi]
- paddd mm7, mm1
- movd [edi], mm7
- psllq mm7, 48
- psrlq mm4, 16
- por mm4, mm7
-
- add esi, byte 4
- add edi, byte 4
-
- dec ebx
- jnz short .mmx_4more_loop_i
-.mmx_end:
- emms
- mov esp, ebp
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-
-; **********************************************************************
-;
-;void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-; {
-; unsigned i, j;
-; FLAC__int64 sum;
-;
-; FLAC__ASSERT(order > 0);
-;
-; for(i = 0; i < data_len; i++) {
-; sum = 0;
-; for(j = 0; j < order; j++)
-; sum += qlp_coeff[j] * (FLAC__int64)data[i-j-1];
-; residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
-; }
-; }
- ALIGN 16
-cident FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32
- ;[esp + 40] residual[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] data[]
-
- ;ASSERT(order > 0)
- ;ASSERT(order <= 32)
- ;ASSERT(lp_quantization <= 31)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov ebx, [esp + 24] ; ebx = data_len
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
-
-.begin:
- mov eax, [esp + 32] ; eax = order
- cmp eax, 1
- jg short .i_32
-
- mov esi, [esp + 40] ; esi = residual[]
- mov edi, [esp + 20] ; edi = data[]
- mov ecx, [esp + 28] ; ecx = qlp_coeff[]
- mov ebp, [ecx] ; ebp = qlp_coeff[0]
- mov eax, [edi - 4] ; eax = data[-1]
- mov ecx, [esp + 36] ; cl = lp_quantization
- ALIGN 16
-.i_1_loop_i:
- imul ebp ; edx:eax = qlp_coeff[0] * (FLAC__int64)data[i-1]
- shrd eax, edx, cl ; 0 <= lp_quantization <= 15
- neg eax
- add eax, [edi]
- mov [esi], eax
- mov eax, [edi]
- add esi, 4
- add edi, 4
- dec ebx
- jnz .i_1_loop_i
- jmp .end
-
-.mov_eip_to_eax:
- mov eax, [esp]
- ret
-
-.i_32: ; eax = order
- neg eax
- add eax, eax
- lea ebp, [eax + eax * 4 + .jumper_0 - .get_eip0]
- call .mov_eip_to_eax
-.get_eip0:
- add ebp, eax
- inc ebp ; compensate for the shorter opcode on the last iteration
-
- mov ebx, [esp + 28] ; ebx = qlp_coeff[]
- mov edi, [esp + 20] ; edi = data[]
- sub [esp + 40], edi ; residual[] -= data[]
-
- xor ecx, ecx
- xor esi, esi
- jmp ebp
-
-;eax = --
-;edx = --
-;ecx = 0
-;esi = 0
-;
-;ebx = qlp_coeff[]
-;edi = data[]
-;ebp = @address
-
- mov eax, [ebx + 124] ; eax = qlp_coeff[31]
- imul dword [edi - 128] ; edx:eax = qlp_coeff[31] * data[i-32]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[31] * data[i-32]
-
- mov eax, [ebx + 120] ; eax = qlp_coeff[30]
- imul dword [edi - 124] ; edx:eax = qlp_coeff[30] * data[i-31]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[30] * data[i-31]
-
- mov eax, [ebx + 116]
- imul dword [edi - 120]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 112]
- imul dword [edi - 116]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 108]
- imul dword [edi - 112]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 104]
- imul dword [edi - 108]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 100]
- imul dword [edi - 104]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 96]
- imul dword [edi - 100]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 92]
- imul dword [edi - 96]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 88]
- imul dword [edi - 92]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 84]
- imul dword [edi - 88]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 80]
- imul dword [edi - 84]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 76]
- imul dword [edi - 80]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 72]
- imul dword [edi - 76]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 68]
- imul dword [edi - 72]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 64]
- imul dword [edi - 68]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 60]
- imul dword [edi - 64]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 56]
- imul dword [edi - 60]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 52]
- imul dword [edi - 56]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 48]
- imul dword [edi - 52]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 44]
- imul dword [edi - 48]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 40]
- imul dword [edi - 44]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 36]
- imul dword [edi - 40]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 32]
- imul dword [edi - 36]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 28]
- imul dword [edi - 32]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 24]
- imul dword [edi - 28]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 20]
- imul dword [edi - 24]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 16]
- imul dword [edi - 20]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 12]
- imul dword [edi - 16]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 8]
- imul dword [edi - 12]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 4]
- imul dword [edi - 8]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx] ; eax = qlp_coeff[ 0] (NOTE: one byte missing from instruction)
- imul dword [edi - 4] ; edx:eax = qlp_coeff[ 0] * data[i- 1]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[ 0] * data[i- 1]
-
-.jumper_0:
- mov edx, ecx
-;esi:edx = sum
- mov ecx, [esp + 36] ; cl = lp_quantization
- shrd edx, esi, cl ; edx = (sum >> lp_quantization)
-;eax = --
-;ecx = --
-;edx = sum >> lp_q
-;esi = --
- neg edx ; edx = -(sum >> lp_quantization)
- mov eax, [esp + 40] ; residual[] - data[]
- add edx, [edi] ; edx = data[i] - (sum >> lp_quantization)
- mov [edi + eax], edx
- add edi, 4
-
- dec dword [esp + 24]
- jz short .end
- xor ecx, ecx
- xor esi, esi
- jmp ebp
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; **********************************************************************
-;
-; void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-; {
-; unsigned i, j;
-; FLAC__int64 sum;
-;
-; FLAC__ASSERT(order > 0);
-;
-; for(i = 0; i < data_len; i++) {
-; sum = 0;
-; for(j = 0; j < order; j++)
-; sum += qlp_coeff[j] * (FLAC__int64)data[i-j-1];
-; data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
-; }
-; }
- ALIGN 16
-cident FLAC__lpc_restore_signal_wide_asm_ia32
- ;[esp + 40] data[]
- ;[esp + 36] lp_quantization
- ;[esp + 32] order
- ;[esp + 28] qlp_coeff[]
- ;[esp + 24] data_len
- ;[esp + 20] residual[]
-
- ;ASSERT(order > 0)
- ;ASSERT(order <= 32)
- ;ASSERT(lp_quantization <= 31)
-
- push ebp
- push ebx
- push esi
- push edi
-
- mov ebx, [esp + 24] ; ebx = data_len
- test ebx, ebx
- jz near .end ; do nothing if data_len == 0
-
-.begin:
- mov eax, [esp + 32] ; eax = order
- cmp eax, 1
- jg short .x87_32
-
- mov esi, [esp + 20] ; esi = residual[]
- mov edi, [esp + 40] ; edi = data[]
- mov ecx, [esp + 28] ; ecx = qlp_coeff[]
- mov ebp, [ecx] ; ebp = qlp_coeff[0]
- mov eax, [edi - 4] ; eax = data[-1]
- mov ecx, [esp + 36] ; cl = lp_quantization
- ALIGN 16
-.x87_1_loop_i:
- imul ebp ; edx:eax = qlp_coeff[0] * (FLAC__int64)data[i-1]
- shrd eax, edx, cl ; 0 <= lp_quantization <= 15
-;
- add eax, [esi]
- mov [edi], eax
-;
- add esi, 4
- add edi, 4
- dec ebx
- jnz .x87_1_loop_i
- jmp .end
-
-.mov_eip_to_eax:
- mov eax, [esp]
- ret
-
-.x87_32: ; eax = order
- neg eax
- add eax, eax
- lea ebp, [eax + eax * 4 + .jumper_0 - .get_eip0]
- call .mov_eip_to_eax
-.get_eip0:
- add ebp, eax
- inc ebp ; compensate for the shorter opcode on the last iteration
-
- mov ebx, [esp + 28] ; ebx = qlp_coeff[]
- mov edi, [esp + 40] ; esi = data[]
- sub [esp + 20], edi ; residual[] -= data[]
-
- xor ecx, ecx
- xor esi, esi
- jmp ebp
-
-;eax = --
-;edx = --
-;ecx = 0
-;esi = 0
-;
-;ebx = qlp_coeff[]
-;edi = data[]
-;ebp = @address
-
- mov eax, [ebx + 124] ; eax = qlp_coeff[31]
- imul dword [edi - 128] ; edx:eax = qlp_coeff[31] * data[i-32]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[31] * data[i-32]
-
- mov eax, [ebx + 120] ; eax = qlp_coeff[30]
- imul dword [edi - 124] ; edx:eax = qlp_coeff[30] * data[i-31]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[30] * data[i-31]
-
- mov eax, [ebx + 116]
- imul dword [edi - 120]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 112]
- imul dword [edi - 116]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 108]
- imul dword [edi - 112]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 104]
- imul dword [edi - 108]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 100]
- imul dword [edi - 104]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 96]
- imul dword [edi - 100]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 92]
- imul dword [edi - 96]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 88]
- imul dword [edi - 92]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 84]
- imul dword [edi - 88]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 80]
- imul dword [edi - 84]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 76]
- imul dword [edi - 80]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 72]
- imul dword [edi - 76]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 68]
- imul dword [edi - 72]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 64]
- imul dword [edi - 68]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 60]
- imul dword [edi - 64]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 56]
- imul dword [edi - 60]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 52]
- imul dword [edi - 56]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 48]
- imul dword [edi - 52]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 44]
- imul dword [edi - 48]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 40]
- imul dword [edi - 44]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 36]
- imul dword [edi - 40]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 32]
- imul dword [edi - 36]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 28]
- imul dword [edi - 32]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 24]
- imul dword [edi - 28]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 20]
- imul dword [edi - 24]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 16]
- imul dword [edi - 20]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 12]
- imul dword [edi - 16]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 8]
- imul dword [edi - 12]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx + 4]
- imul dword [edi - 8]
- add ecx, eax
- adc esi, edx
-
- mov eax, [ebx] ; eax = qlp_coeff[ 0] (NOTE: one byte missing from instruction)
- imul dword [edi - 4] ; edx:eax = qlp_coeff[ 0] * data[i- 1]
- add ecx, eax
- adc esi, edx ; sum += qlp_coeff[ 0] * data[i- 1]
-
-.jumper_0:
- mov edx, ecx
-;esi:edx = sum
- mov ecx, [esp + 36] ; cl = lp_quantization
- shrd edx, esi, cl ; edx = (sum >> lp_quantization)
-;eax = --
-;ecx = --
-;edx = sum >> lp_q
-;esi = --
-;
- mov eax, [esp + 20] ; residual[] - data[]
- add edx, [edi + eax] ; edx = residual[i] + (sum >> lp_quantization)
- mov [edi], edx ; data[i] = residual[i] + (sum >> lp_quantization)
- add edi, 4
-
- dec dword [esp + 24]
- jz short .end
- xor ecx, ecx
- xor esi, esi
- jmp ebp
-
-.end:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
-
-; end
+++ /dev/null
-; libFLAC - Free Lossless Audio Codec library
-; Copyright (C) 2001-2009 Josh Coalson
-; Copyright (C) 2011-2016 Xiph.Org Foundation
-;
-; Redistribution and use in source and binary forms, with or without
-; modification, are permitted provided that the following conditions
-; are met:
-;
-; - Redistributions of source code must retain the above copyright
-; notice, this list of conditions and the following disclaimer.
-;
-; - Redistributions in binary form must reproduce the above copyright
-; notice, this list of conditions and the following disclaimer in the
-; documentation and/or other materials provided with the distribution.
-;
-; - Neither the name of the Xiph.org Foundation nor the names of its
-; contributors may be used to endorse or promote products derived from
-; this software without specific prior written permission.
-;
-; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- bits 32
-
-%ifdef OBJ_FORMAT_win32
- %define FLAC__PUBLIC_NEEDS_UNDERSCORE
- %idefine code_section section .text align=16 class=CODE use32
- %idefine data_section section .data align=32 class=DATA use32
- %idefine bss_section section .bss align=32 class=DATA use32
-%elifdef OBJ_FORMAT_aout
- %define FLAC__PUBLIC_NEEDS_UNDERSCORE
- %idefine code_section section .text
- %idefine data_section section .data
- %idefine bss_section section .bss
-%elifdef OBJ_FORMAT_aoutb
- %define FLAC__PUBLIC_NEEDS_UNDERSCORE
- %idefine code_section section .text
- %idefine data_section section .data
- %idefine bss_section section .bss
-%elifdef OBJ_FORMAT_macho
- %define FLAC__PUBLIC_NEEDS_UNDERSCORE
- %idefine code_section section .text
- %idefine data_section section .data
- %idefine bss_section section .bss
-%elifdef OBJ_FORMAT_elf
- %idefine code_section section .text align=16
- %idefine data_section section .data align=32
- %idefine bss_section section .bss align=32
-%else
- %error unsupported object format! ; this directive doesn't really work here
-%endif
-
-%imacro cglobal 1
- %ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE
- global _%1
- %else
- %if __NASM_MAJOR__ >= 2
- global %1:function hidden
- %else
- global %1
- %endif
- %endif
-%endmacro
-
-%imacro cextern 1
- %ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE
- extern _%1
- %else
- extern %1
- %endif
-%endmacro
-
-%imacro cident 1
-_%1:
-%1:
-%endmacro
-
-%ifdef OBJ_FORMAT_elf
-section .note.GNU-stack progbits noalloc noexec nowrite align=1
-%endif
-
+++ /dev/null
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-SUBDIRS = private protected
+++ /dev/null
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-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
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-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
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-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
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-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
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- * modification, are permitted provided that the following conditions
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- *
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-#include "metadata.h"
-#include "stream_encoder_framing.h"
-
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-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
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- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
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- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITMATH_H
-#define FLAC__PRIVATE__BITMATH_H
-
-#include "FLAC/ordinals.h"
-#include "FLAC/assert.h"
-
-#include "share/compat.h"
-
-#if defined(_MSC_VER)
-#include <intrin.h> /* for _BitScanReverse* */
-#endif
-
-/* Will never be emitted for MSVC, GCC, Intel compilers */
-static inline unsigned int FLAC__clz_soft_uint32(FLAC__uint32 word)
-{
- static const unsigned char byte_to_unary_table[] = {
- 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- };
-
- return word > 0xffffff ? byte_to_unary_table[word >> 24] :
- word > 0xffff ? byte_to_unary_table[word >> 16] + 8 :
- word > 0xff ? byte_to_unary_table[word >> 8] + 16 :
- byte_to_unary_table[word] + 24;
-}
-
-static inline unsigned int FLAC__clz_uint32(FLAC__uint32 v)
-{
-/* Never used with input 0 */
- FLAC__ASSERT(v > 0);
-#if defined(__INTEL_COMPILER)
- return _bit_scan_reverse(v) ^ 31U;
-#elif defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-/* This will translate either to (bsr ^ 31U), clz , ctlz, cntlz, lzcnt depending on
- * -march= setting or to a software routine in exotic machines. */
- return __builtin_clz(v);
-#elif defined(_MSC_VER)
- {
- unsigned long idx;
- _BitScanReverse(&idx, v);
- return idx ^ 31U;
- }
-#else
- return FLAC__clz_soft_uint32(v);
-#endif
-}
-
-/* Used when 64-bit bsr/clz is unavailable; can use 32-bit bsr/clz when possible */
-static inline unsigned int FLAC__clz_soft_uint64(FLAC__uint64 word)
-{
- return (FLAC__uint32)(word>>32) ? FLAC__clz_uint32((FLAC__uint32)(word>>32)) :
- FLAC__clz_uint32((FLAC__uint32)word) + 32;
-}
-
-static inline unsigned int FLAC__clz_uint64(FLAC__uint64 v)
-{
- /* Never used with input 0 */
- FLAC__ASSERT(v > 0);
-#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
- return __builtin_clzll(v);
-#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
- {
- unsigned long idx;
- _BitScanReverse64(&idx, v);
- return idx ^ 63U;
- }
-#else
- return FLAC__clz_soft_uint64(v);
-#endif
-}
-
-/* These two functions work with input 0 */
-static inline unsigned int FLAC__clz2_uint32(FLAC__uint32 v)
-{
- if (!v)
- return 32;
- return FLAC__clz_uint32(v);
-}
-
-static inline unsigned int FLAC__clz2_uint64(FLAC__uint64 v)
-{
- if (!v)
- return 64;
- return FLAC__clz_uint64(v);
-}
-
-/* An example of what FLAC__bitmath_ilog2() computes:
- *
- * ilog2( 0) = assertion failure
- * ilog2( 1) = 0
- * ilog2( 2) = 1
- * ilog2( 3) = 1
- * ilog2( 4) = 2
- * ilog2( 5) = 2
- * ilog2( 6) = 2
- * ilog2( 7) = 2
- * ilog2( 8) = 3
- * ilog2( 9) = 3
- * ilog2(10) = 3
- * ilog2(11) = 3
- * ilog2(12) = 3
- * ilog2(13) = 3
- * ilog2(14) = 3
- * ilog2(15) = 3
- * ilog2(16) = 4
- * ilog2(17) = 4
- * ilog2(18) = 4
- */
-
-static inline unsigned FLAC__bitmath_ilog2(FLAC__uint32 v)
-{
- FLAC__ASSERT(v > 0);
-#if defined(__INTEL_COMPILER)
- return _bit_scan_reverse(v);
-#elif defined(_MSC_VER)
- {
- unsigned long idx;
- _BitScanReverse(&idx, v);
- return idx;
- }
-#else
- return FLAC__clz_uint32(v) ^ 31U;
-#endif
-}
-
-static inline unsigned FLAC__bitmath_ilog2_wide(FLAC__uint64 v)
-{
- FLAC__ASSERT(v > 0);
-#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
- return __builtin_clzll(v) ^ 63U;
-/* Sorry, only supported in x64/Itanium.. and both have fast FPU which makes integer-only encoder pointless */
-#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
- {
- unsigned long idx;
- _BitScanReverse64(&idx, v);
- return idx;
- }
-#else
-/* Brain-damaged compilers will use the fastest possible way that is,
- de Bruijn sequences (http://supertech.csail.mit.edu/papers/debruijn.pdf)
- (C) Timothy B. Terriberry (tterribe@xiph.org) 2001-2009 CC0 (Public domain).
-*/
- {
- static const unsigned char DEBRUIJN_IDX64[64]={
- 0, 1, 2, 7, 3,13, 8,19, 4,25,14,28, 9,34,20,40,
- 5,17,26,38,15,46,29,48,10,31,35,54,21,50,41,57,
- 63, 6,12,18,24,27,33,39,16,37,45,47,30,53,49,56,
- 62,11,23,32,36,44,52,55,61,22,43,51,60,42,59,58
- };
- v|= v>>1;
- v|= v>>2;
- v|= v>>4;
- v|= v>>8;
- v|= v>>16;
- v|= v>>32;
- v= (v>>1)+1;
- return DEBRUIJN_IDX64[v*FLAC__U64L(0x218A392CD3D5DBF)>>58&0x3F];
- }
-#endif
-}
-
-unsigned FLAC__bitmath_silog2(FLAC__int64 v);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITREADER_H
-#define FLAC__PRIVATE__BITREADER_H
-
-#include <stdio.h> /* for FILE */
-#include "FLAC/ordinals.h"
-#include "cpu.h"
-
-/*
- * opaque structure definition
- */
-struct FLAC__BitReader;
-typedef struct FLAC__BitReader FLAC__BitReader;
-
-typedef FLAC__bool (*FLAC__BitReaderReadCallback)(FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-/*
- * construction, deletion, initialization, etc functions
- */
-FLAC__BitReader *FLAC__bitreader_new(void);
-void FLAC__bitreader_delete(FLAC__BitReader *br);
-FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd);
-void FLAC__bitreader_free(FLAC__BitReader *br); /* does not 'free(br)' */
-FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br);
-void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out);
-
-/*
- * CRC functions
- */
-void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed);
-FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br);
-
-/*
- * info functions
- */
-FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
-unsigned FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
-unsigned FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
-
-/*
- * read functions
- */
-
-FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, unsigned bits);
-FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val); /*only for bits=32*/
-FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, unsigned bits); /* WATCHOUT: does not CRC the skipped data! */ /*@@@@ add to unit tests */
-FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, unsigned nvals); /* WATCHOUT: does not CRC the read data! */
-FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, unsigned nvals); /* WATCHOUT: does not CRC the read data! */
-FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, unsigned *val);
-FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, unsigned parameter);
-FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter);
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, unsigned parameter);
-FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, unsigned *val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, unsigned *rawlen);
-FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, unsigned *rawlen);
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__BITWRITER_H
-#define FLAC__PRIVATE__BITWRITER_H
-
-#include <stdio.h> /* for FILE */
-#include "FLAC/ordinals.h"
-
-/*
- * opaque structure definition
- */
-struct FLAC__BitWriter;
-typedef struct FLAC__BitWriter FLAC__BitWriter;
-
-/*
- * construction, deletion, initialization, etc functions
- */
-FLAC__BitWriter *FLAC__bitwriter_new(void);
-void FLAC__bitwriter_delete(FLAC__BitWriter *bw);
-FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw);
-void FLAC__bitwriter_free(FLAC__BitWriter *bw); /* does not 'free(buffer)' */
-void FLAC__bitwriter_clear(FLAC__BitWriter *bw);
-void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out);
-
-/*
- * CRC functions
- *
- * non-const *bw because they have to cal FLAC__bitwriter_get_buffer()
- */
-FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc);
-FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc);
-
-/*
- * info functions
- */
-FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw);
-unsigned FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw); /* can be called anytime, returns total # of bits unconsumed */
-
-/*
- * direct buffer access
- *
- * there may be no calls on the bitwriter between get and release.
- * the bitwriter continues to own the returned buffer.
- * before get, bitwriter MUST be byte aligned: check with FLAC__bitwriter_is_byte_aligned()
- */
-FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes);
-void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw);
-
-/*
- * write functions
- */
-FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, unsigned bits);
-FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val); /*only for bits=32*/
-FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], unsigned nvals);
-FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, unsigned val);
-unsigned FLAC__bitwriter_rice_bits(FLAC__int32 val, unsigned parameter);
-#if 0 /* UNUSED */
-unsigned FLAC__bitwriter_golomb_bits_signed(int val, unsigned parameter);
-unsigned FLAC__bitwriter_golomb_bits_unsigned(unsigned val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, unsigned parameter);
-FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, unsigned nvals, unsigned parameter);
-#if 0 /* UNUSED */
-FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, unsigned parameter);
-FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, unsigned val, unsigned parameter);
-#endif
-FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val);
-FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val);
-FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__CPU_H
-#define FLAC__PRIVATE__CPU_H
-
-#include "FLAC/ordinals.h"
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#ifndef FLAC__CPU_X86_64
-
-#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
-#define FLAC__CPU_X86_64
-#endif
-
-#endif
-
-#ifndef FLAC__CPU_IA32
-
-#if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)
-#define FLAC__CPU_IA32
-#endif
-
-#endif
-
-
-#if FLAC__HAS_X86INTRIN
-/* SSE intrinsics support by ICC/MSVC/GCC */
-#if defined __INTEL_COMPILER
- #define FLAC__SSE_TARGET(x)
- #define FLAC__SSE_SUPPORTED 1
- #define FLAC__SSE2_SUPPORTED 1
- #if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
- #define FLAC__SSSE3_SUPPORTED 1
- #define FLAC__SSE4_1_SUPPORTED 1
- #endif
- #if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
- #define FLAC__AVX_SUPPORTED 1
- #endif
- #if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
- #define FLAC__AVX2_SUPPORTED 1
- #define FLAC__FMA_SUPPORTED 1
- #endif
-#elif defined _MSC_VER
- #define FLAC__SSE_TARGET(x)
- #define FLAC__SSE_SUPPORTED 1
- #define FLAC__SSE2_SUPPORTED 1
- #if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
- #define FLAC__SSSE3_SUPPORTED 1
- #define FLAC__SSE4_1_SUPPORTED 1
- #endif
- #if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
- #define FLAC__AVX_SUPPORTED 1
- #endif
- #if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
- #define FLAC__AVX2_SUPPORTED 1
- #define FLAC__FMA_SUPPORTED 1
- #endif
-#elif defined __GNUC__
- #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* since GCC 4.9 -msse.. compiler options aren't necessary */
- #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
- #define FLAC__SSE_SUPPORTED 1
- #define FLAC__SSE2_SUPPORTED 1
- #define FLAC__SSSE3_SUPPORTED 1
- #define FLAC__SSE4_1_SUPPORTED 1
-#ifdef FLAC__USE_AVX
- #define FLAC__AVX_SUPPORTED 1
- #define FLAC__AVX2_SUPPORTED 1
- #define FLAC__FMA_SUPPORTED 1
-#endif
- #else /* for GCC older than 4.9 */
- #define FLAC__SSE_TARGET(x)
- #ifdef __SSE__
- #define FLAC__SSE_SUPPORTED 1
- #endif
- #ifdef __SSE2__
- #define FLAC__SSE2_SUPPORTED 1
- #endif
- #ifdef __SSSE3__
- #define FLAC__SSSE3_SUPPORTED 1
- #endif
- #ifdef __SSE4_1__
- #define FLAC__SSE4_1_SUPPORTED 1
- #endif
- #ifdef __AVX__
- #define FLAC__AVX_SUPPORTED 1
- #endif
- #ifdef __AVX2__
- #define FLAC__AVX2_SUPPORTED 1
- #endif
- #ifdef __FMA__
- #define FLAC__FMA_SUPPORTED 1
- #endif
- #endif /* GCC version */
-#endif /* compiler version */
-#endif /* intrinsics support */
-
-
-#ifndef FLAC__AVX_SUPPORTED
-#define FLAC__AVX_SUPPORTED 0
-#endif
-
-typedef enum {
- FLAC__CPUINFO_TYPE_IA32,
- FLAC__CPUINFO_TYPE_X86_64,
- FLAC__CPUINFO_TYPE_UNKNOWN
-} FLAC__CPUInfo_Type;
-
-typedef struct {
- FLAC__bool intel;
-
- FLAC__bool cmov;
- FLAC__bool mmx;
- FLAC__bool sse;
- FLAC__bool sse2;
-
- FLAC__bool sse3;
- FLAC__bool ssse3;
- FLAC__bool sse41;
- FLAC__bool sse42;
- FLAC__bool avx;
- FLAC__bool avx2;
- FLAC__bool fma;
-} FLAC__CPUInfo_IA32;
-
-typedef struct {
- FLAC__bool intel;
-
- FLAC__bool sse3;
- FLAC__bool ssse3;
- FLAC__bool sse41;
- FLAC__bool sse42;
- FLAC__bool avx;
- FLAC__bool avx2;
- FLAC__bool fma;
-} FLAC__CPUInfo_x86;
-
-
-typedef struct {
- FLAC__bool use_asm;
- FLAC__CPUInfo_Type type;
- FLAC__CPUInfo_IA32 ia32;
- FLAC__CPUInfo_x86 x86;
-} FLAC__CPUInfo;
-
-void FLAC__cpu_info(FLAC__CPUInfo *info);
-
-FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
-
-void FLAC__cpu_info_asm_ia32(FLAC__uint32 *flags_edx, FLAC__uint32 *flags_ecx);
-
-void FLAC__cpu_info_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__CRC_H
-#define FLAC__PRIVATE__CRC_H
-
-#include "FLAC/ordinals.h"
-
-/* 8 bit CRC generator, MSB shifted first
-** polynomial = x^8 + x^2 + x^1 + x^0
-** init = 0
-*/
-extern FLAC__byte const FLAC__crc8_table[256];
-#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)];
-void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc);
-void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc);
-FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len);
-
-/* 16 bit CRC generator, MSB shifted first
-** polynomial = x^16 + x^15 + x^2 + x^0
-** init = 0
-*/
-extern unsigned const FLAC__crc16_table[256];
-
-#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)])
-/* this alternate may be faster on some systems/compilers */
-#if 0
-#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff)
-#endif
-
-unsigned FLAC__crc16(const FLAC__byte *data, unsigned len);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FIXED_H
-#define FLAC__PRIVATE__FIXED_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/cpu.h"
-#include "private/float.h"
-#include "FLAC/format.h"
-
-/*
- * FLAC__fixed_compute_best_predictor()
- * --------------------------------------------------------------------
- * Compute the best fixed predictor and the expected bits-per-sample
- * of the residual signal for each order. The _wide() version uses
- * 64-bit integers which is statistically necessary when bits-per-
- * sample + log2(blocksize) > 30
- *
- * IN data[0,data_len-1]
- * IN data_len
- * OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-# ifndef FLAC__NO_ASM
-# if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-# ifdef FLAC__SSE2_SUPPORTED
-unsigned FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
-unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
-# endif
-# ifdef FLAC__SSSE3_SUPPORTED
-unsigned FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-unsigned FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
-# endif
-# endif
-# if defined FLAC__CPU_IA32 && defined FLAC__HAS_NASM
-unsigned FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-# endif
-# endif
-#else
-unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-unsigned FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#endif
-
-/*
- * FLAC__fixed_compute_residual()
- * --------------------------------------------------------------------
- * Compute the residual signal obtained from sutracting the predicted
- * signal from the original.
- *
- * IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
- * IN data_len length of original signal
- * IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
- * OUT residual[0,data_len-1] residual signal
- */
-void FLAC__fixed_compute_residual(const FLAC__int32 data[], unsigned data_len, unsigned order, FLAC__int32 residual[]);
-
-/*
- * FLAC__fixed_restore_signal()
- * --------------------------------------------------------------------
- * Restore the original signal by summing the residual and the
- * predictor.
- *
- * IN residual[0,data_len-1] residual signal
- * IN data_len length of original signal
- * IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
- * *** IMPORTANT: the caller must pass in the historical samples:
- * IN data[-order,-1] previously-reconstructed historical samples
- * OUT data[0,data_len-1] original signal
- */
-void FLAC__fixed_restore_signal(const FLAC__int32 residual[], unsigned data_len, unsigned order, FLAC__int32 data[]);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FLOAT_H
-#define FLAC__PRIVATE__FLOAT_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "FLAC/ordinals.h"
-
-/*
- * All the code in libFLAC that uses float and double
- * should be protected by checks of the macro
- * FLAC__INTEGER_ONLY_LIBRARY.
- *
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-/*
- * FLAC__real is the basic floating point type used in LPC analysis.
- *
- * WATCHOUT: changing FLAC__real will change the signatures of many
- * functions that have assembly language equivalents and break them.
- */
-typedef float FLAC__real;
-#else
-/*
- * The convention for FLAC__fixedpoint is to use the upper 16 bits
- * for the integer part and lower 16 bits for the fractional part.
- */
-typedef FLAC__int32 FLAC__fixedpoint;
-extern const FLAC__fixedpoint FLAC__FP_ZERO;
-extern const FLAC__fixedpoint FLAC__FP_ONE_HALF;
-extern const FLAC__fixedpoint FLAC__FP_ONE;
-extern const FLAC__fixedpoint FLAC__FP_LN2;
-extern const FLAC__fixedpoint FLAC__FP_E;
-
-#define FLAC__fixedpoint_trunc(x) ((x)>>16)
-
-#define FLAC__fixedpoint_mul(x, y) ( (FLAC__fixedpoint) ( ((FLAC__int64)(x)*(FLAC__int64)(y)) >> 16 ) )
-
-#define FLAC__fixedpoint_div(x, y) ( (FLAC__fixedpoint) ( ( ((FLAC__int64)(x)<<32) / (FLAC__int64)(y) ) >> 16 ) )
-
-/*
- * FLAC__fixedpoint_log2()
- * --------------------------------------------------------------------
- * Returns the base-2 logarithm of the fixed-point number 'x' using an
- * algorithm by Knuth for x >= 1.0
- *
- * 'fracbits' is the number of fractional bits of 'x'. 'fracbits' must
- * be < 32 and evenly divisible by 4 (0 is OK but not very precise).
- *
- * 'precision' roughly limits the number of iterations that are done;
- * use (unsigned)(-1) for maximum precision.
- *
- * If 'x' is less than one -- that is, x < (1<<fracbits) -- then this
- * function will punt and return 0.
- *
- * The return value will also have 'fracbits' fractional bits.
- */
-FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, unsigned fracbits, unsigned precision);
-
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__FORMAT_H
-#define FLAC__PRIVATE__FORMAT_H
-
-#include "FLAC/format.h"
-
-unsigned FLAC__format_get_max_rice_partition_order(unsigned blocksize, unsigned predictor_order);
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize(unsigned blocksize);
-unsigned FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(unsigned limit, unsigned blocksize, unsigned predictor_order);
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
-void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
-FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, unsigned max_partition_order);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__LPC_H
-#define FLAC__PRIVATE__LPC_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/cpu.h"
-#include "private/float.h"
-#include "FLAC/format.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__lpc_window_data()
- * --------------------------------------------------------------------
- * Applies the given window to the data.
- * OPT: asm implementation
- *
- * IN in[0,data_len-1]
- * IN window[0,data_len-1]
- * OUT out[0,lag-1]
- * IN data_len
- */
-void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len);
-
-/*
- * FLAC__lpc_compute_autocorrelation()
- * --------------------------------------------------------------------
- * Compute the autocorrelation for lags between 0 and lag-1.
- * Assumes data[] outside of [0,data_len-1] == 0.
- * Asserts that lag > 0.
- *
- * IN data[0,data_len-1]
- * IN data_len
- * IN 0 < lag <= data_len
- * OUT autoc[0,lag-1]
- */
-void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_compute_autocorrelation_asm_ia32(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-# endif
-# endif
-# if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-# ifdef FLAC__SSE_SUPPORTED
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
-# endif
-# endif
-#endif
-
-/*
- * FLAC__lpc_compute_lp_coefficients()
- * --------------------------------------------------------------------
- * Computes LP coefficients for orders 1..max_order.
- * Do not call if autoc[0] == 0.0. This means the signal is zero
- * and there is no point in calculating a predictor.
- *
- * IN autoc[0,max_order] autocorrelation values
- * IN 0 < max_order <= FLAC__MAX_LPC_ORDER max LP order to compute
- * OUT lp_coeff[0,max_order-1][0,max_order-1] LP coefficients for each order
- * *** IMPORTANT:
- * *** lp_coeff[0,max_order-1][max_order,FLAC__MAX_LPC_ORDER-1] are untouched
- * OUT error[0,max_order-1] error for each order (more
- * specifically, the variance of
- * the error signal times # of
- * samples in the signal)
- *
- * Example: if max_order is 9, the LP coefficients for order 9 will be
- * in lp_coeff[8][0,8], the LP coefficients for order 8 will be
- * in lp_coeff[7][0,7], etc.
- */
-void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[]);
-
-/*
- * FLAC__lpc_quantize_coefficients()
- * --------------------------------------------------------------------
- * Quantizes the LP coefficients. NOTE: precision + bits_per_sample
- * must be less than 32 (sizeof(FLAC__int32)*8).
- *
- * IN lp_coeff[0,order-1] LP coefficients
- * IN order LP order
- * IN FLAC__MIN_QLP_COEFF_PRECISION < precision
- * desired precision (in bits, including sign
- * bit) of largest coefficient
- * OUT qlp_coeff[0,order-1] quantized coefficients
- * OUT shift # of bits to shift right to get approximated
- * LP coefficients. NOTE: could be negative.
- * RETURN 0 => quantization OK
- * 1 => coefficients require too much shifting for *shift to
- * fit in the LPC subframe header. 'shift' is unset.
- * 2 => coefficients are all zero, which is bad. 'shift' is
- * unset.
- */
-int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, unsigned precision, FLAC__int32 qlp_coeff[], int *shift);
-
-/*
- * FLAC__lpc_compute_residual_from_qlp_coefficients()
- * --------------------------------------------------------------------
- * Compute the residual signal obtained from sutracting the predicted
- * signal from the original.
- *
- * IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
- * IN data_len length of original signal
- * IN qlp_coeff[0,order-1] quantized LP coefficients
- * IN order > 0 LP order
- * IN lp_quantization quantization of LP coefficients in bits
- * OUT residual[0,data_len-1] residual signal
- */
-void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-# endif
-# endif
-# if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-# ifdef FLAC__SSE2_SUPPORTED
-void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-# endif
-# ifdef FLAC__SSE4_1_SUPPORTED
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-# endif
-# ifdef FLAC__AVX2_SUPPORTED
-void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-# endif
-# endif
-#endif
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-/*
- * FLAC__lpc_restore_signal()
- * --------------------------------------------------------------------
- * Restore the original signal by summing the residual and the
- * predictor.
- *
- * IN residual[0,data_len-1] residual signal
- * IN data_len length of original signal
- * IN qlp_coeff[0,order-1] quantized LP coefficients
- * IN order > 0 LP order
- * IN lp_quantization quantization of LP coefficients in bits
- * *** IMPORTANT: the caller must pass in the historical samples:
- * IN data[-order,-1] previously-reconstructed historical samples
- * OUT data[0,data_len-1] original signal
- */
-void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-#ifndef FLAC__NO_ASM
-# ifdef FLAC__CPU_IA32
-# ifdef FLAC__HAS_NASM
-void FLAC__lpc_restore_signal_asm_ia32(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_asm_ia32_mmx(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-void FLAC__lpc_restore_signal_wide_asm_ia32(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-# endif /* FLAC__HAS_NASM */
-# endif /* FLAC__CPU_IA32 */
-# if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-# ifdef FLAC__SSE2_SUPPORTED
-void FLAC__lpc_restore_signal_16_intrin_sse2(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-# endif
-# ifdef FLAC__SSE4_1_SUPPORTED
-void FLAC__lpc_restore_signal_wide_intrin_sse41(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
-# endif
-# endif
-#endif /* FLAC__NO_ASM */
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__lpc_compute_expected_bits_per_residual_sample()
- * --------------------------------------------------------------------
- * Compute the expected number of bits per residual signal sample
- * based on the LP error (which is related to the residual variance).
- *
- * IN lpc_error >= 0.0 error returned from calculating LP coefficients
- * IN total_samples > 0 # of samples in residual signal
- * RETURN expected bits per sample
- */
-double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, unsigned total_samples);
-double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(double lpc_error, double error_scale);
-
-/*
- * FLAC__lpc_compute_best_order()
- * --------------------------------------------------------------------
- * Compute the best order from the array of signal errors returned
- * during coefficient computation.
- *
- * IN lpc_error[0,max_order-1] >= 0.0 error returned from calculating LP coefficients
- * IN max_order > 0 max LP order
- * IN total_samples > 0 # of samples in residual signal
- * IN overhead_bits_per_order # of bits overhead for each increased LP order
- * (includes warmup sample size and quantized LP coefficient)
- * RETURN [1,max_order] best order
- */
-unsigned FLAC__lpc_compute_best_order(const double lpc_error[], unsigned max_order, unsigned total_samples, unsigned overhead_bits_per_order);
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2012-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__MACROS_H
-#define FLAC__PRIVATE__MACROS_H
-
-#if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
-
-#define flac_max(a,b) \
- ({ __typeof__ (a) _a = (a); \
- __typeof__ (b) _b = (b); \
- _a > _b ? _a : _b; })
-
-#define MIN_PASTE(A,B) A##B
-#define MIN_IMPL(A,B,L) ({ \
- __typeof__(A) MIN_PASTE(__a,L) = (A); \
- __typeof__(B) MIN_PASTE(__b,L) = (B); \
- MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
- })
-
-#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
-
-/* Whatever other unix that has sys/param.h */
-#elif defined(HAVE_SYS_PARAM_H)
-#define flac_max(a,b) MAX(a,b)
-#define flac_min(a,b) MIN(a,b)
-
-/* Windows VS has them in stdlib.h.. XXX:Untested */
-#elif defined(_MSC_VER)
-#include <stdlib.h>
-#define flac_max(a,b) __max(a,b)
-#define flac_min(a,b) __min(a,b)
-#endif
-
-#ifndef MIN
-#define MIN(x,y) ((x) <= (y) ? (x) : (y))
-#endif
-
-#ifndef MAX
-#define MAX(x,y) ((x) >= (y) ? (x) : (y))
-#endif
-
-#endif
+++ /dev/null
-#ifndef FLAC__PRIVATE__MD5_H
-#define FLAC__PRIVATE__MD5_H
-
-/*
- * This is the header file for the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest. This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- *
- * Changed so as no longer to depend on Colin Plumb's `usual.h'
- * header definitions; now uses stuff from dpkg's config.h
- * - Ian Jackson <ijackson@nyx.cs.du.edu>.
- * Still in the public domain.
- *
- * Josh Coalson: made some changes to integrate with libFLAC.
- * Still in the public domain, with no warranty.
- */
-
-#include "FLAC/ordinals.h"
-
-typedef union {
- FLAC__byte *p8;
- FLAC__int16 *p16;
- FLAC__int32 *p32;
-} FLAC__multibyte;
-
-typedef struct {
- FLAC__uint32 in[16];
- FLAC__uint32 buf[4];
- FLAC__uint32 bytes[2];
- FLAC__multibyte internal_buf;
- size_t capacity;
-} FLAC__MD5Context;
-
-void FLAC__MD5Init(FLAC__MD5Context *context);
-void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *context);
-
-FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__MEMORY_H
-#define FLAC__PRIVATE__MEMORY_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h> /* for size_t */
-
-#include "private/float.h"
-#include "FLAC/ordinals.h" /* for FLAC__bool */
-
-/* Returns the unaligned address returned by malloc.
- * Use free() on this address to deallocate.
- */
-void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address);
-FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer);
-FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, unsigned **unaligned_pointer, unsigned **aligned_pointer);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer);
-#endif
-void *safe_malloc_mul_2op_p(size_t size1, size_t size2);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__METADATA_H
-#define FLAC__PRIVATE__METADATA_H
-
-#include "FLAC/metadata.h"
-
-/* WATCHOUT: all malloc()ed data in the block is free()ed; this may not
- * be a consistent state (e.g. PICTURE) or equivalent to the initial
- * state after FLAC__metadata_object_new()
- */
-void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object);
-
-void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__OGG_DECODER_ASPECT_H
-#define FLAC__PRIVATE__OGG_DECODER_ASPECT_H
-
-#include <ogg/ogg.h>
-
-#include "FLAC/ordinals.h"
-#include "FLAC/stream_decoder.h" /* for FLAC__StreamDecoderReadStatus */
-
-typedef struct FLAC__OggDecoderAspect {
- /* these are storage for values that can be set through the API */
- FLAC__bool use_first_serial_number;
- long serial_number;
-
- /* these are for internal state related to Ogg decoding */
- ogg_stream_state stream_state;
- ogg_sync_state sync_state;
- unsigned version_major, version_minor;
- FLAC__bool need_serial_number;
- FLAC__bool end_of_stream;
- FLAC__bool have_working_page; /* only if true will the following vars be valid */
- ogg_page working_page;
- FLAC__bool have_working_packet; /* only if true will the following vars be valid */
- ogg_packet working_packet; /* as we work through the packet we will move working_packet.packet forward and working_packet.bytes down */
-} FLAC__OggDecoderAspect;
-
-void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value);
-void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect);
-FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect);
-void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect);
-void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect);
-void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect);
-
-typedef enum {
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK = 0,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR,
- FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR
-} FLAC__OggDecoderAspectReadStatus;
-
-typedef FLAC__OggDecoderAspectReadStatus (*FLAC__OggDecoderAspectReadCallbackProxy)(const void *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-
-FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, const FLAC__StreamDecoder *decoder, void *client_data);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
-#define FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
-
-#include <ogg/ogg.h>
-
-#include "FLAC/ordinals.h"
-#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoderWriteStatus */
-
-typedef struct FLAC__OggEncoderAspect {
- /* these are storage for values that can be set through the API */
- long serial_number;
- unsigned num_metadata;
-
- /* these are for internal state related to Ogg encoding */
- ogg_stream_state stream_state;
- ogg_page page;
- FLAC__bool seen_magic; /* true if we've seen the fLaC magic in the write callback yet */
- FLAC__bool is_first_packet;
- FLAC__uint64 samples_written;
-} FLAC__OggEncoderAspect;
-
-void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value);
-FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, unsigned value);
-void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect);
-FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect);
-void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect);
-
-typedef FLAC__StreamEncoderWriteStatus (*FLAC__OggEncoderAspectWriteCallbackProxy)(const void *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
-
-FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data);
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__OGG_HELPER_H
-#define FLAC__PRIVATE__OGG_HELPER_H
-
-#include <ogg/ogg.h>
-#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoder */
-
-void simple_ogg_page__init(ogg_page *page);
-void simple_ogg_page__clear(ogg_page *page);
-FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data);
-FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__OGG_MAPPING_H
-#define FLAC__PRIVATE__OGG_MAPPING_H
-
-#include "FLAC/ordinals.h"
-
-/** The length of the packet type field in bytes. */
-#define FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH (1u)
-
-extern const unsigned FLAC__OGG_MAPPING_PACKET_TYPE_LEN; /* = 8 bits */
-
-extern const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE; /* = 0x7f */
-
-/** The length of the 'FLAC' magic in bytes. */
-#define FLAC__OGG_MAPPING_MAGIC_LENGTH (4u)
-
-extern const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC; /* = "FLAC" */
-
-extern const unsigned FLAC__OGG_MAPPING_VERSION_MAJOR_LEN; /* = 8 bits */
-extern const unsigned FLAC__OGG_MAPPING_VERSION_MINOR_LEN; /* = 8 bits */
-
-/** The length of the Ogg FLAC mapping major version number in bytes. */
-#define FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH (1u)
-
-/** The length of the Ogg FLAC mapping minor version number in bytes. */
-#define FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH (1u)
-
-extern const unsigned FLAC__OGG_MAPPING_NUM_HEADERS_LEN; /* = 16 bits */
-
-/** The length of the #-of-header-packets number bytes. */
-#define FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH (2u)
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__STREAM_ENCODER_H
-#define FLAC__PRIVATE__STREAM_ENCODER_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/*
- * This is used to avoid overflow with unusual signals in 32-bit
- * accumulator in the *precompute_partition_info_sums_* functions.
- */
-#define FLAC__MAX_EXTRA_RESIDUAL_BPS 4
-
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
-#include "private/cpu.h"
-#include "FLAC/format.h"
-
-#ifdef FLAC__SSE2_SUPPORTED
-extern void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps);
-#endif
-
-#ifdef FLAC__SSSE3_SUPPORTED
-extern void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps);
-#endif
-
-#ifdef FLAC__AVX2_SUPPORTED
-extern void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps);
-#endif
-
-#endif
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
-#define FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
-
-#include "FLAC/format.h"
-#include "bitwriter.h"
-
-FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw);
-FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2006-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PRIVATE__WINDOW_H
-#define FLAC__PRIVATE__WINDOW_H
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "private/float.h"
-#include "FLAC/format.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-/*
- * FLAC__window_*()
- * --------------------------------------------------------------------
- * Calculates window coefficients according to different apodization
- * functions.
- *
- * OUT window[0,L-1]
- * IN L (number of points in window)
- */
-void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */
-void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L);
-void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p);
-void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
-void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
-void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L);
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-#endif
+++ /dev/null
-# libFLAC - Free Lossless Audio Codec library
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# - Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# - Neither the name of the Xiph.org Foundation nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-noinst_HEADERS = \
- all.h \
- stream_decoder.h \
- stream_encoder.h
+++ /dev/null
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-# Copyright (C) 2001-2009 Josh Coalson
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-# modification, are permitted provided that the following conditions
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-#
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-# Tell versions [3.59,3.63) of GNU make to not export all variables.
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+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__ALL_H
-#define FLAC__PROTECTED__ALL_H
-
-#include "stream_decoder.h"
-#include "stream_encoder.h"
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__STREAM_DECODER_H
-#define FLAC__PROTECTED__STREAM_DECODER_H
-
-#include "FLAC/stream_decoder.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_decoder_aspect.h"
-#endif
-
-typedef struct FLAC__StreamDecoderProtected {
- FLAC__StreamDecoderState state;
- FLAC__StreamDecoderInitStatus initstate;
- unsigned channels;
- FLAC__ChannelAssignment channel_assignment;
- unsigned bits_per_sample;
- unsigned sample_rate; /* in Hz */
- unsigned blocksize; /* in samples (per channel) */
- FLAC__bool md5_checking; /* if true, generate MD5 signature of decoded data and compare against signature in the STREAMINFO metadata block */
-#if FLAC__HAS_OGG
- FLAC__OggDecoderAspect ogg_decoder_aspect;
-#endif
-} FLAC__StreamDecoderProtected;
-
-/*
- * return the number of input bytes consumed
- */
-unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder);
-
-#endif
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef FLAC__PROTECTED__STREAM_ENCODER_H
-#define FLAC__PROTECTED__STREAM_ENCODER_H
-
-#include "FLAC/stream_encoder.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_encoder_aspect.h"
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-#include "private/float.h"
-
-#define FLAC__MAX_APODIZATION_FUNCTIONS 32
-
-typedef enum {
- FLAC__APODIZATION_BARTLETT,
- FLAC__APODIZATION_BARTLETT_HANN,
- FLAC__APODIZATION_BLACKMAN,
- FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE,
- FLAC__APODIZATION_CONNES,
- FLAC__APODIZATION_FLATTOP,
- FLAC__APODIZATION_GAUSS,
- FLAC__APODIZATION_HAMMING,
- FLAC__APODIZATION_HANN,
- FLAC__APODIZATION_KAISER_BESSEL,
- FLAC__APODIZATION_NUTTALL,
- FLAC__APODIZATION_RECTANGLE,
- FLAC__APODIZATION_TRIANGLE,
- FLAC__APODIZATION_TUKEY,
- FLAC__APODIZATION_PARTIAL_TUKEY,
- FLAC__APODIZATION_PUNCHOUT_TUKEY,
- FLAC__APODIZATION_WELCH
-} FLAC__ApodizationFunction;
-
-typedef struct {
- FLAC__ApodizationFunction type;
- union {
- struct {
- FLAC__real stddev;
- } gauss;
- struct {
- FLAC__real p;
- } tukey;
- struct {
- FLAC__real p;
- FLAC__real start;
- FLAC__real end;
- } multiple_tukey;
- } parameters;
-} FLAC__ApodizationSpecification;
-
-#endif // #ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-typedef struct FLAC__StreamEncoderProtected {
- FLAC__StreamEncoderState state;
- FLAC__bool verify;
- FLAC__bool streamable_subset;
- FLAC__bool do_md5;
- FLAC__bool do_mid_side_stereo;
- FLAC__bool loose_mid_side_stereo;
- unsigned channels;
- unsigned bits_per_sample;
- unsigned sample_rate;
- unsigned blocksize;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- unsigned num_apodizations;
- FLAC__ApodizationSpecification apodizations[FLAC__MAX_APODIZATION_FUNCTIONS];
-#endif
- unsigned max_lpc_order;
- unsigned qlp_coeff_precision;
- FLAC__bool do_qlp_coeff_prec_search;
- FLAC__bool do_exhaustive_model_search;
- FLAC__bool do_escape_coding;
- unsigned min_residual_partition_order;
- unsigned max_residual_partition_order;
- unsigned rice_parameter_search_dist;
- FLAC__uint64 total_samples_estimate;
- FLAC__StreamMetadata **metadata;
- unsigned num_metadata_blocks;
- FLAC__uint64 streaminfo_offset, seektable_offset, audio_offset;
-#if FLAC__HAS_OGG
- FLAC__OggEncoderAspect ogg_encoder_aspect;
-#endif
-} FLAC__StreamEncoderProtected;
-
-#endif
+++ /dev/null
-# Configure paths for libFLAC
-# "Inspired" by ogg.m4
-
-dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-dnl Test for libFLAC, and define LIBFLAC_CFLAGS, LIBFLAC_LIBS, LIBFLAC_LIBDIR
-dnl
-AC_DEFUN([AM_PATH_LIBFLAC],
-[dnl
-dnl Get the cflags and libraries
-dnl
-AC_ARG_WITH(libFLAC,[ --with-libFLAC=PFX Prefix where libFLAC is installed (optional)], libFLAC_prefix="$withval", libFLAC_prefix="")
-AC_ARG_WITH(libFLAC-libraries,[ --with-libFLAC-libraries=DIR Directory where libFLAC library is installed (optional)], libFLAC_libraries="$withval", libFLAC_libraries="")
-AC_ARG_WITH(libFLAC-includes,[ --with-libFLAC-includes=DIR Directory where libFLAC header files are installed (optional)], libFLAC_includes="$withval", libFLAC_includes="")
-AC_ARG_ENABLE(libFLACtest, [ --disable-libFLACtest Do not try to compile and run a test libFLAC program],, enable_libFLACtest=yes)
-
- if test "x$libFLAC_libraries" != "x" ; then
- LIBFLAC_LIBS="-L$libFLAC_libraries"
- elif test "x$libFLAC_prefix" = "xno" || test "x$libFLAC_prefix" = "xyes" ; then
- LIBFLAC_LIBS=""
- elif test "x$libFLAC_prefix" != "x" ; then
- LIBFLAC_LIBS="-L$libFLAC_prefix/lib"
- elif test "x$prefix" != "xNONE"; then
- LIBFLAC_LIBS="-L$prefix/lib"
- fi
-
- if test "x$libFLAC_prefix" != "xno" ; then
- LIBFLAC_LIBS="$LIBFLAC_LIBS -lFLAC $OGG_LIBS -lm"
- fi
-
- if test "x$libFLAC_includes" != "x" ; then
- LIBFLAC_CFLAGS="-I$libFLAC_includes"
- elif test "x$libFLAC_prefix" != "x" ; then
- LIBFLAC_CFLAGS="-I$libFLAC_prefix/include"
- elif test "$prefix" != "xNONE"; then
- LIBFLAC_CFLAGS=""
- fi
-
- AC_MSG_CHECKING(for libFLAC)
- no_libFLAC=""
-
-
- if test "x$enable_libFLACtest" = "xyes" ; then
- ac_save_CFLAGS="$CFLAGS"
- ac_save_CXXFLAGS="$CXXFLAGS"
- ac_save_LIBS="$LIBS"
- ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
- CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
- CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
- LIBS="$LIBS $LIBFLAC_LIBS"
- LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
-dnl
-dnl Now check if the installed libFLAC is sufficiently new.
-dnl
- rm -f conf.libFLACtest
- AC_TRY_RUN([
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <FLAC/format.h>
-
-int main ()
-{
- system("touch conf.libFLACtest");
- return 0;
-}
-
-],, no_libFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
- CFLAGS="$ac_save_CFLAGS"
- CXXFLAGS="$ac_save_CXXFLAGS"
- LIBS="$ac_save_LIBS"
- LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
- fi
-
- if test "x$no_libFLAC" = "x" ; then
- AC_MSG_RESULT(yes)
- ifelse([$1], , :, [$1])
- else
- AC_MSG_RESULT(no)
- if test -f conf.libFLACtest ; then
- :
- else
- echo "*** Could not run libFLAC test program, checking why..."
- CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
- CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
- LIBS="$LIBS $LIBFLAC_LIBS"
- LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
- AC_TRY_LINK([
-#include <stdio.h>
-#include <FLAC/format.h>
-], [ return 0; ],
- [ echo "*** The test program compiled, but did not run. This usually means"
- echo "*** that the run-time linker is not finding libFLAC or finding the wrong"
- echo "*** version of libFLAC. If it is not finding libFLAC, you'll need to set your"
- echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
- echo "*** to the installed location Also, make sure you have run ldconfig if that"
- echo "*** is required on your system"
- echo "***"
- echo "*** If you have an old version installed, it is best to remove it, although"
- echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
- [ echo "*** The test program failed to compile or link. See the file config.log for the"
- echo "*** exact error that occured. This usually means libFLAC was incorrectly installed"
- echo "*** or that you have moved libFLAC since it was installed. In the latter case, you"
- echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ])
- CFLAGS="$ac_save_CFLAGS"
- CXXFLAGS="$ac_save_CXXFLAGS"
- LIBS="$ac_save_LIBS"
- LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
- fi
- LIBFLAC_CFLAGS=""
- LIBFLAC_LIBDIR=""
- LIBFLAC_LIBS=""
- ifelse([$2], , :, [$2])
- fi
- AC_SUBST(LIBFLAC_CFLAGS)
- AC_SUBST(LIBFLAC_LIBDIR)
- AC_SUBST(LIBFLAC_LIBS)
- rm -f conf.libFLACtest
-])
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
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-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "share/compat.h"
-#include "private/bitmath.h"
-#include "private/lpc.h"
-#include "private/macros.h"
-#if defined DEBUG || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
-#include <stdio.h>
-#endif
-
-/* OPT: #undef'ing this may improve the speed on some architectures */
-#define FLAC__LPC_UNROLLED_FILTER_LOOPS
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-#if defined(_MSC_VER) && (_MSC_VER < 1800)
-#include <float.h>
-static inline long int lround(double x) {
- return (long)(x + _copysign(0.5, x));
-}
-#elif !defined(HAVE_LROUND) && defined(__GNUC__)
-static inline long int lround(double x) {
- return (long)(x + __builtin_copysign(0.5, x));
-}
-/* If this fails, we are in the presence of a mid 90's compiler, move along... */
-#endif
-
-void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len)
-{
- unsigned i;
- for(i = 0; i < data_len; i++)
- out[i] = in[i] * window[i];
-}
-
-void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- /* a readable, but slower, version */
-#if 0
- FLAC__real d;
- unsigned i;
-
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= data_len);
-
- /*
- * Technically we should subtract the mean first like so:
- * for(i = 0; i < data_len; i++)
- * data[i] -= mean;
- * but it appears not to make enough of a difference to matter, and
- * most signals are already closely centered around zero
- */
- while(lag--) {
- for(i = lag, d = 0.0; i < data_len; i++)
- d += data[i] * data[i - lag];
- autoc[lag] = d;
- }
-#endif
-
- /*
- * this version tends to run faster because of better data locality
- * ('data_len' is usually much larger than 'lag')
- */
- FLAC__real d;
- unsigned sample, coeff;
- const unsigned limit = data_len - lag;
-
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= data_len);
-
- for(coeff = 0; coeff < lag; coeff++)
- autoc[coeff] = 0.0;
- for(sample = 0; sample <= limit; sample++) {
- d = data[sample];
- for(coeff = 0; coeff < lag; coeff++)
- autoc[coeff] += d * data[sample+coeff];
- }
- for(; sample < data_len; sample++) {
- d = data[sample];
- for(coeff = 0; coeff < data_len - sample; coeff++)
- autoc[coeff] += d * data[sample+coeff];
- }
-}
-
-void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[])
-{
- unsigned i, j;
- double r, err, lpc[FLAC__MAX_LPC_ORDER];
-
- FLAC__ASSERT(0 != max_order);
- FLAC__ASSERT(0 < *max_order);
- FLAC__ASSERT(*max_order <= FLAC__MAX_LPC_ORDER);
- FLAC__ASSERT(autoc[0] != 0.0);
-
- err = autoc[0];
-
- for(i = 0; i < *max_order; i++) {
- /* Sum up this iteration's reflection coefficient. */
- r = -autoc[i+1];
- for(j = 0; j < i; j++)
- r -= lpc[j] * autoc[i-j];
- r /= err;
-
- /* Update LPC coefficients and total error. */
- lpc[i]=r;
- for(j = 0; j < (i>>1); j++) {
- double tmp = lpc[j];
- lpc[j] += r * lpc[i-1-j];
- lpc[i-1-j] += r * tmp;
- }
- if(i & 1)
- lpc[j] += lpc[j] * r;
-
- err *= (1.0 - r * r);
-
- /* save this order */
- for(j = 0; j <= i; j++)
- lp_coeff[i][j] = (FLAC__real)(-lpc[j]); /* negate FIR filter coeff to get predictor coeff */
- error[i] = err;
-
- /* see SF bug https://sourceforge.net/p/flac/bugs/234/ */
- if(err == 0.0) {
- *max_order = i+1;
- return;
- }
- }
-}
-
-int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, unsigned precision, FLAC__int32 qlp_coeff[], int *shift)
-{
- unsigned i;
- double cmax;
- FLAC__int32 qmax, qmin;
-
- FLAC__ASSERT(precision > 0);
- FLAC__ASSERT(precision >= FLAC__MIN_QLP_COEFF_PRECISION);
-
- /* drop one bit for the sign; from here on out we consider only |lp_coeff[i]| */
- precision--;
- qmax = 1 << precision;
- qmin = -qmax;
- qmax--;
-
- /* calc cmax = max( |lp_coeff[i]| ) */
- cmax = 0.0;
- for(i = 0; i < order; i++) {
- const double d = fabs(lp_coeff[i]);
- if(d > cmax)
- cmax = d;
- }
-
- if(cmax <= 0.0) {
- /* => coefficients are all 0, which means our constant-detect didn't work */
- return 2;
- }
- else {
- const int max_shiftlimit = (1 << (FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN-1)) - 1;
- const int min_shiftlimit = -max_shiftlimit - 1;
- int log2cmax;
-
- (void)frexp(cmax, &log2cmax);
- log2cmax--;
- *shift = (int)precision - log2cmax - 1;
-
- if(*shift > max_shiftlimit)
- *shift = max_shiftlimit;
- else if(*shift < min_shiftlimit)
- return 1;
- }
-
- if(*shift >= 0) {
- double error = 0.0;
- FLAC__int32 q;
- for(i = 0; i < order; i++) {
- error += lp_coeff[i] * (1 << *shift);
- q = lround(error);
-
-#ifdef FLAC__OVERFLOW_DETECT
- if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
- else if(q < qmin)
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
-#endif
- if(q > qmax)
- q = qmax;
- else if(q < qmin)
- q = qmin;
- error -= q;
- qlp_coeff[i] = q;
- }
- }
- /* negative shift is very rare but due to design flaw, negative shift is
- * not allowed in the decoder, so it must be handled specially by scaling
- * down coeffs
- */
- else {
- const int nshift = -(*shift);
- double error = 0.0;
- FLAC__int32 q;
-#ifdef DEBUG
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: negative shift=%d order=%u cmax=%f\n", *shift, order, cmax);
-#endif
- for(i = 0; i < order; i++) {
- error += lp_coeff[i] / (1 << nshift);
- q = lround(error);
-#ifdef FLAC__OVERFLOW_DETECT
- if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
- else if(q < qmin)
- fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
-#endif
- if(q > qmax)
- q = qmax;
- else if(q < qmin)
- q = qmin;
- error -= q;
- qlp_coeff[i] = q;
- }
- *shift = 0;
- }
-
- return 0;
-}
-
-#if defined(_MSC_VER)
-// silence MSVC warnings about __restrict modifier
-#pragma warning ( disable : 4028 )
-#endif
-
-void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_restrict data, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict residual)
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- FLAC__int64 sumo;
- unsigned i, j;
- FLAC__int32 sum;
- const FLAC__int32 *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sumo = 0;
- sum = 0;
- history = data;
- for(j = 0; j < order; j++) {
- sum += qlp_coeff[j] * (*(--history));
- sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
- if(sumo > 2147483647ll || sumo < -2147483648ll)
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%" PRId64 "\n",i,j,qlp_coeff[j],*history,sumo);
- }
- *(residual++) = *(data++) - (sum >> lp_quantization);
- }
-
- /* Here's a slower but clearer version:
- for(i = 0; i < data_len; i++) {
- sum = 0;
- for(j = 0; j < order; j++)
- sum += qlp_coeff[j] * data[i-j-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- */
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int32 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
-}
-#endif
-
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * flac_restrict data, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict residual)
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- unsigned i, j;
- FLAC__int64 sum;
- const FLAC__int32 *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sum = 0;
- history = data;
- for(j = 0; j < order; j++)
- sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
- if(FLAC__bitmath_silog2(sum >> lp_quantization) > 32) {
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, sum=%" PRId64 "\n", i, (sum >> lp_quantization));
- break;
- }
- if(FLAC__bitmath_silog2((FLAC__int64)(*data) - (sum >> lp_quantization)) > 32) {
- fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, data=%d, sum=%" PRId64 ", residual=%" PRId64 "\n", i, *data, (int64_t)(sum >> lp_quantization), ((FLAC__int64)(*data) - (sum >> lp_quantization)));
- break;
- }
- *(residual++) = *(data++) - (FLAC__int32)(sum >> lp_quantization);
- }
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int64 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- residual[i] = data[i] - (FLAC__int32)((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-#endif
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
-
-void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict data)
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- FLAC__int64 sumo;
- unsigned i, j;
- FLAC__int32 sum;
- const FLAC__int32 *r = residual, *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_restore_signal: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sumo = 0;
- sum = 0;
- history = data;
- for(j = 0; j < order; j++) {
- sum += qlp_coeff[j] * (*(--history));
- sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
- if(sumo > 2147483647ll || sumo < -2147483648ll)
- fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%" PRId64 "\n",i,j,qlp_coeff[j],*history,sumo);
- }
- *(data++) = *(r++) + (sum >> lp_quantization);
- }
-
- /* Here's a slower but clearer version:
- for(i = 0; i < data_len; i++) {
- sum = 0;
- for(j = 0; j < order; j++)
- sum += qlp_coeff[j] * data[i-j-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- */
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int32 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * data[i-10];
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * data[i-9];
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * data[i-8];
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * data[i-7];
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * data[i-6];
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * data[i-5];
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * data[i-4];
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * data[i-3];
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * data[i-2];
- sum += qlp_coeff[0] * data[i-1];
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- data[i] = residual[i] + ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- data[i] = residual[i] + (sum >> lp_quantization);
- }
- }
-}
-#endif
-
-void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict data)
-#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
-{
- unsigned i, j;
- FLAC__int64 sum;
- const FLAC__int32 *r = residual, *history;
-
-#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
- for(i=0;i<order;i++)
- fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
- fprintf(stderr,"\n");
-#endif
- FLAC__ASSERT(order > 0);
-
- for(i = 0; i < data_len; i++) {
- sum = 0;
- history = data;
- for(j = 0; j < order; j++)
- sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
- if(FLAC__bitmath_silog2(sum >> lp_quantization) > 32) {
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, sum=%" PRId64 "\n", i, (sum >> lp_quantization));
- break;
- }
- if(FLAC__bitmath_silog2((FLAC__int64)(*r) + (sum >> lp_quantization)) > 32) {
- fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, residual=%d, sum=%" PRId64 ", data=%" PRId64 "\n", i, *r, (sum >> lp_quantization), ((FLAC__int64)(*r) + (sum >> lp_quantization)));
- break;
- }
- *(data++) = *(r++) + (FLAC__int32)(sum >> lp_quantization);
- }
-}
-#else /* fully unrolled version for normal use */
-{
- int i;
- FLAC__int64 sum;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- /*
- * We do unique versions up to 12th order since that's the subset limit.
- * Also they are roughly ordered to match frequency of occurrence to
- * minimize branching.
- */
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 11 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 10) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 9 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 7 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 6) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 5 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 3 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- }
- else {
- if(order == 2) {
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- data[i] = residual[i] + (FLAC__int32)((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-#endif
-
-#if defined(_MSC_VER)
-#pragma warning ( default : 4028 )
-#endif
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, unsigned total_samples)
-{
- double error_scale;
-
- FLAC__ASSERT(total_samples > 0);
-
- error_scale = 0.5 / (double)total_samples;
-
- return FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error, error_scale);
-}
-
-double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(double lpc_error, double error_scale)
-{
- if(lpc_error > 0.0) {
- double bps = (double)0.5 * log(error_scale * lpc_error) / M_LN2;
- if(bps >= 0.0)
- return bps;
- else
- return 0.0;
- }
- else if(lpc_error < 0.0) { /* error should not be negative but can happen due to inadequate floating-point resolution */
- return 1e32;
- }
- else {
- return 0.0;
- }
-}
-
-unsigned FLAC__lpc_compute_best_order(const double lpc_error[], unsigned max_order, unsigned total_samples, unsigned overhead_bits_per_order)
-{
- unsigned order, indx, best_index; /* 'index' the index into lpc_error; index==order-1 since lpc_error[0] is for order==1, lpc_error[1] is for order==2, etc */
- double bits, best_bits, error_scale;
-
- FLAC__ASSERT(max_order > 0);
- FLAC__ASSERT(total_samples > 0);
-
- error_scale = 0.5 / (double)total_samples;
-
- best_index = 0;
- best_bits = (unsigned)(-1);
-
- for(indx = 0, order = 1; indx < max_order; indx++, order++) {
- bits = FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error[indx], error_scale) * (double)(total_samples - order) + (double)(order * overhead_bits_per_order);
- if(bits < best_bits) {
- best_index = indx;
- best_bits = bits;
- }
- }
-
- return best_index+1; /* +1 since indx of lpc_error[] is order-1 */
-}
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/lpc.h"
-#ifdef FLAC__AVX2_SUPPORTED
-
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-
-#include <immintrin.h> /* AVX2 */
-
-FLAC__SSE_TARGET("avx2")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- FLAC__int32 sum;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
- q10 = _mm256_set1_epi32(0xffff & qlp_coeff[10]);
- q11 = _mm256_set1_epi32(0xffff & qlp_coeff[11]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q11, _mm256_loadu_si256((const __m256i*)(data+i-12)));
- mull = _mm256_madd_epi16(q10, _mm256_loadu_si256((const __m256i*)(data+i-11))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q9, _mm256_loadu_si256((const __m256i*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q8, _mm256_loadu_si256((const __m256i*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q7, _mm256_loadu_si256((const __m256i*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 11 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
- q10 = _mm256_set1_epi32(0xffff & qlp_coeff[10]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q10, _mm256_loadu_si256((const __m256i*)(data+i-11)));
- mull = _mm256_madd_epi16(q9, _mm256_loadu_si256((const __m256i*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q8, _mm256_loadu_si256((const __m256i*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q7, _mm256_loadu_si256((const __m256i*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 10) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q9, _mm256_loadu_si256((const __m256i*)(data+i-10)));
- mull = _mm256_madd_epi16(q8, _mm256_loadu_si256((const __m256i*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q7, _mm256_loadu_si256((const __m256i*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 9 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q8, _mm256_loadu_si256((const __m256i*)(data+i-9 )));
- mull = _mm256_madd_epi16(q7, _mm256_loadu_si256((const __m256i*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q7, _mm256_loadu_si256((const __m256i*)(data+i-8 )));
- mull = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 7 */
- __m256i q0, q1, q2, q3, q4, q5, q6;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q6, _mm256_loadu_si256((const __m256i*)(data+i-7 )));
- mull = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 6) {
- __m256i q0, q1, q2, q3, q4, q5;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q5, _mm256_loadu_si256((const __m256i*)(data+i-6 )));
- mull = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 5 */
- __m256i q0, q1, q2, q3, q4;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q4, _mm256_loadu_si256((const __m256i*)(data+i-5 )));
- mull = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- __m256i q0, q1, q2, q3;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q3, _mm256_loadu_si256((const __m256i*)(data+i-4 )));
- mull = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 3 */
- __m256i q0, q1, q2;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q2, _mm256_loadu_si256((const __m256i*)(data+i-3 )));
- mull = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 2) {
- __m256i q0, q1;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_madd_epi16(q1, _mm256_loadu_si256((const __m256i*)(data+i-2 )));
- mull = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 1 */
- __m256i q0;
- q0 = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ;
- summ = _mm256_madd_epi16(q0, _mm256_loadu_si256((const __m256i*)(data+i-1 )));
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- for(; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 12: sum += qlp_coeff[11] * data[i-12];
- case 11: sum += qlp_coeff[10] * data[i-11];
- case 10: sum += qlp_coeff[ 9] * data[i-10];
- case 9: sum += qlp_coeff[ 8] * data[i- 9];
- case 8: sum += qlp_coeff[ 7] * data[i- 8];
- case 7: sum += qlp_coeff[ 6] * data[i- 7];
- case 6: sum += qlp_coeff[ 5] * data[i- 6];
- case 5: sum += qlp_coeff[ 4] * data[i- 5];
- case 4: sum += qlp_coeff[ 3] * data[i- 4];
- case 3: sum += qlp_coeff[ 2] * data[i- 3];
- case 2: sum += qlp_coeff[ 1] * data[i- 2];
- case 1: sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- _mm256_zeroupper();
-}
-
-FLAC__SSE_TARGET("avx2")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- FLAC__int32 sum;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(qlp_coeff[9 ]);
- q10 = _mm256_set1_epi32(qlp_coeff[10]);
- q11 = _mm256_set1_epi32(qlp_coeff[11]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q11, _mm256_loadu_si256((const __m256i*)(data+i-12)));
- mull = _mm256_mullo_epi32(q10, _mm256_loadu_si256((const __m256i*)(data+i-11))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q9, _mm256_loadu_si256((const __m256i*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q8, _mm256_loadu_si256((const __m256i*)(data+i-9))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q7, _mm256_loadu_si256((const __m256i*)(data+i-8))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 11 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(qlp_coeff[9 ]);
- q10 = _mm256_set1_epi32(qlp_coeff[10]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q10, _mm256_loadu_si256((const __m256i*)(data+i-11)));
- mull = _mm256_mullo_epi32(q9, _mm256_loadu_si256((const __m256i*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q8, _mm256_loadu_si256((const __m256i*)(data+i-9))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q7, _mm256_loadu_si256((const __m256i*)(data+i-8))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 10) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(qlp_coeff[8 ]);
- q9 = _mm256_set1_epi32(qlp_coeff[9 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q9, _mm256_loadu_si256((const __m256i*)(data+i-10)));
- mull = _mm256_mullo_epi32(q8, _mm256_loadu_si256((const __m256i*)(data+i-9))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q7, _mm256_loadu_si256((const __m256i*)(data+i-8))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 9 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(qlp_coeff[7 ]);
- q8 = _mm256_set1_epi32(qlp_coeff[8 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q8, _mm256_loadu_si256((const __m256i*)(data+i-9)));
- mull = _mm256_mullo_epi32(q7, _mm256_loadu_si256((const __m256i*)(data+i-8))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
- q7 = _mm256_set1_epi32(qlp_coeff[7 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q7, _mm256_loadu_si256((const __m256i*)(data+i-8)));
- mull = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 7 */
- __m256i q0, q1, q2, q3, q4, q5, q6;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
- q6 = _mm256_set1_epi32(qlp_coeff[6 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q6, _mm256_loadu_si256((const __m256i*)(data+i-7)));
- mull = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 6) {
- __m256i q0, q1, q2, q3, q4, q5;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
- q5 = _mm256_set1_epi32(qlp_coeff[5 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q5, _mm256_loadu_si256((const __m256i*)(data+i-6)));
- mull = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 5 */
- __m256i q0, q1, q2, q3, q4;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
- q4 = _mm256_set1_epi32(qlp_coeff[4 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q4, _mm256_loadu_si256((const __m256i*)(data+i-5)));
- mull = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- __m256i q0, q1, q2, q3;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
- q3 = _mm256_set1_epi32(qlp_coeff[3 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q3, _mm256_loadu_si256((const __m256i*)(data+i-4)));
- mull = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 3 */
- __m256i q0, q1, q2;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
- q2 = _mm256_set1_epi32(qlp_coeff[2 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q2, _mm256_loadu_si256((const __m256i*)(data+i-3)));
- mull = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2))); summ = _mm256_add_epi32(summ, mull);
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 2) {
- __m256i q0, q1;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
- q1 = _mm256_set1_epi32(qlp_coeff[1 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ, mull;
- summ = _mm256_mullo_epi32(q1, _mm256_loadu_si256((const __m256i*)(data+i-2)));
- mull = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1))); summ = _mm256_add_epi32(summ, mull);
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- else { /* order == 1 */
- __m256i q0;
- q0 = _mm256_set1_epi32(qlp_coeff[0 ]);
-
- for(i = 0; i < (int)data_len-7; i+=8) {
- __m256i summ;
- summ = _mm256_mullo_epi32(q0, _mm256_loadu_si256((const __m256i*)(data+i-1)));
- summ = _mm256_sra_epi32(summ, cnt);
- _mm256_storeu_si256((__m256i*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(data+i)), summ));
- }
- }
- }
- }
- for(; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 12: sum += qlp_coeff[11] * data[i-12];
- case 11: sum += qlp_coeff[10] * data[i-11];
- case 10: sum += qlp_coeff[ 9] * data[i-10];
- case 9: sum += qlp_coeff[ 8] * data[i- 9];
- case 8: sum += qlp_coeff[ 7] * data[i- 8];
- case 7: sum += qlp_coeff[ 6] * data[i- 7];
- case 6: sum += qlp_coeff[ 5] * data[i- 6];
- case 5: sum += qlp_coeff[ 4] * data[i- 5];
- case 4: sum += qlp_coeff[ 3] * data[i- 4];
- case 3: sum += qlp_coeff[ 2] * data[i- 3];
- case 2: sum += qlp_coeff[ 1] * data[i- 2];
- case 1: sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- _mm256_zeroupper();
-}
-
-static FLAC__int32 pack_arr[8] = { 0, 2, 4, 6, 1, 3, 5, 7 };
-
-FLAC__SSE_TARGET("avx2")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- FLAC__int64 sum;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
- __m256i pack = _mm256_loadu_si256((const __m256i *)pack_arr);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
- FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm256_sra_epi64() so we have to use _mm256_srl_epi64() */
-
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
- q7 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
- q8 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
- q9 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
- q10 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[10]));
- q11 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[11]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q11, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-12))));
- mull = _mm256_mul_epi32(q10, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-11)))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q9, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-10)))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q8, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q7, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 11 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
- q7 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
- q8 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
- q9 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
- q10 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[10]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q10, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-11))));
- mull = _mm256_mul_epi32(q9, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-10)))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q8, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q7, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- else {
- if(order == 10) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
- q7 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
- q8 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
- q9 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q9, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-10))));
- mull = _mm256_mul_epi32(q8, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q7, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 9 */
- __m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
- q7 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
- q8 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q8, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-9 ))));
- mull = _mm256_mul_epi32(q7, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- __m256i q0, q1, q2, q3, q4, q5, q6, q7;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
- q7 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q7, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-8 ))));
- mull = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 7 */
- __m256i q0, q1, q2, q3, q4, q5, q6;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
- q6 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q6, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-7 ))));
- mull = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- else {
- if(order == 6) {
- __m256i q0, q1, q2, q3, q4, q5;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
- q5 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q5, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-6 ))));
- mull = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 5 */
- __m256i q0, q1, q2, q3, q4;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
- q4 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q4, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-5 ))));
- mull = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- __m256i q0, q1, q2, q3;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
- q3 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q3, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-4 ))));
- mull = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 3 */
- __m256i q0, q1, q2;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
- q2 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q2, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-3 ))));
- mull = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- else {
- if(order == 2) {
- __m256i q0, q1;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
- q1 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ, mull;
- summ = _mm256_mul_epi32(q1, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-2 ))));
- mull = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- else { /* order == 1 */
- __m256i q0;
- q0 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m256i summ;
- summ = _mm256_mul_epi32(q0, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(data+i-1 ))));
- summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), _mm256_castsi256_si128(summ)));
- }
- }
- }
- }
- for(; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 12: sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- case 11: sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- case 10: sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- case 9: sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- case 8: sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- case 7: sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- case 6: sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- case 5: sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- case 4: sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- case 3: sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- case 2: sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- case 1: sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
- _mm256_zeroupper();
-}
-
-#endif /* FLAC__AVX2_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/lpc.h"
-#ifdef FLAC__SSE_SUPPORTED
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-
-#include <xmmintrin.h> /* SSE */
-
-/* new routines: more unaligned loads, less shuffle
- * old routines: less unaligned loads, more shuffle
- * these *_old routines are equivalent to the ASM routines in ia32/lpc_asm.nasm
- */
-
-/* new routines: faster on current Intel (starting from Core i aka Nehalem) and all AMD CPUs */
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- int i;
- int limit = data_len - 4;
- __m128 sum0;
-
- (void) lag;
- FLAC__ASSERT(lag <= 4);
- FLAC__ASSERT(lag <= data_len);
-
- sum0 = _mm_setzero_ps();
-
- for(i = 0; i <= limit; i++) {
- __m128 d, d0;
- d0 = _mm_loadu_ps(data+i);
- d = d0; d = _mm_shuffle_ps(d, d, 0);
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
- }
-
- {
- __m128 d0 = _mm_setzero_ps();
- limit++; if(limit < 0) limit = 0;
-
- for(i = data_len-1; i >= limit; i--) {
- __m128 d;
- d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
- d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
- d0 = _mm_move_ss(d0, d);
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
- }
- }
-
- _mm_storeu_ps(autoc, sum0);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- int i;
- int limit = data_len - 8;
- __m128 sum0, sum1;
-
- (void) lag;
- FLAC__ASSERT(lag <= 8);
- FLAC__ASSERT(lag <= data_len);
-
- sum0 = _mm_setzero_ps();
- sum1 = _mm_setzero_ps();
-
- for(i = 0; i <= limit; i++) {
- __m128 d, d0, d1;
- d0 = _mm_loadu_ps(data+i);
- d1 = _mm_loadu_ps(data+i+4);
- d = d0; d = _mm_shuffle_ps(d, d, 0);
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
- }
-
- {
- __m128 d0 = _mm_setzero_ps();
- __m128 d1 = _mm_setzero_ps();
- limit++; if(limit < 0) limit = 0;
-
- for(i = data_len-1; i >= limit; i--) {
- __m128 d;
- d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
- d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
- d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
- d1 = _mm_move_ss(d1, d0);
- d0 = _mm_move_ss(d0, d);
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
- }
- }
-
- _mm_storeu_ps(autoc, sum0);
- _mm_storeu_ps(autoc+4, sum1);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- int i;
- int limit = data_len - 12;
- __m128 sum0, sum1, sum2;
-
- (void) lag;
- FLAC__ASSERT(lag <= 12);
- FLAC__ASSERT(lag <= data_len);
-
- sum0 = _mm_setzero_ps();
- sum1 = _mm_setzero_ps();
- sum2 = _mm_setzero_ps();
-
- for(i = 0; i <= limit; i++) {
- __m128 d, d0, d1, d2;
- d0 = _mm_loadu_ps(data+i);
- d1 = _mm_loadu_ps(data+i+4);
- d2 = _mm_loadu_ps(data+i+8);
- d = d0; d = _mm_shuffle_ps(d, d, 0);
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
- }
-
- {
- __m128 d0 = _mm_setzero_ps();
- __m128 d1 = _mm_setzero_ps();
- __m128 d2 = _mm_setzero_ps();
- limit++; if(limit < 0) limit = 0;
-
- for(i = data_len-1; i >= limit; i--) {
- __m128 d;
- d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
- d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
- d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
- d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
- d2 = _mm_move_ss(d2, d1);
- d1 = _mm_move_ss(d1, d0);
- d0 = _mm_move_ss(d0, d);
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
- }
- }
-
- _mm_storeu_ps(autoc, sum0);
- _mm_storeu_ps(autoc+4, sum1);
- _mm_storeu_ps(autoc+8, sum2);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- int i;
- int limit = data_len - 16;
- __m128 sum0, sum1, sum2, sum3;
-
- (void) lag;
- FLAC__ASSERT(lag <= 16);
- FLAC__ASSERT(lag <= data_len);
-
- sum0 = _mm_setzero_ps();
- sum1 = _mm_setzero_ps();
- sum2 = _mm_setzero_ps();
- sum3 = _mm_setzero_ps();
-
- for(i = 0; i <= limit; i++) {
- __m128 d, d0, d1, d2, d3;
- d0 = _mm_loadu_ps(data+i);
- d1 = _mm_loadu_ps(data+i+4);
- d2 = _mm_loadu_ps(data+i+8);
- d3 = _mm_loadu_ps(data+i+12);
- d = d0; d = _mm_shuffle_ps(d, d, 0);
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
- sum3 = _mm_add_ps(sum3, _mm_mul_ps(d3, d));
- }
-
- {
- __m128 d0 = _mm_setzero_ps();
- __m128 d1 = _mm_setzero_ps();
- __m128 d2 = _mm_setzero_ps();
- __m128 d3 = _mm_setzero_ps();
- limit++; if(limit < 0) limit = 0;
-
- for(i = data_len-1; i >= limit; i--) {
- __m128 d;
- d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
- d3 = _mm_shuffle_ps(d3, d3, _MM_SHUFFLE(2,1,0,3));
- d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
- d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
- d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
- d3 = _mm_move_ss(d3, d2);
- d2 = _mm_move_ss(d2, d1);
- d1 = _mm_move_ss(d1, d0);
- d0 = _mm_move_ss(d0, d);
- sum3 = _mm_add_ps(sum3, _mm_mul_ps(d, d3));
- sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
- sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
- sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
- }
- }
-
- _mm_storeu_ps(autoc, sum0);
- _mm_storeu_ps(autoc+4, sum1);
- _mm_storeu_ps(autoc+8, sum2);
- _mm_storeu_ps(autoc+12,sum3);
-}
-
-/* old routines: faster on older Intel CPUs (up to Core 2) */
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- __m128 xmm0, xmm2, xmm5;
-
- (void) lag;
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= 4);
- FLAC__ASSERT(lag <= data_len);
- FLAC__ASSERT(data_len > 0);
-
- xmm5 = _mm_setzero_ps();
-
- xmm0 = _mm_load_ss(data++);
- xmm2 = xmm0;
- xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
-
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm5 = _mm_add_ps(xmm5, xmm0);
-
- data_len--;
-
- while(data_len)
- {
- xmm0 = _mm_load1_ps(data++);
-
- xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
- xmm2 = _mm_move_ss(xmm2, xmm0);
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm5 = _mm_add_ps(xmm5, xmm0);
-
- data_len--;
- }
-
- _mm_storeu_ps(autoc, xmm5);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- __m128 xmm0, xmm1, xmm2, xmm3, xmm5, xmm6;
-
- (void) lag;
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= 8);
- FLAC__ASSERT(lag <= data_len);
- FLAC__ASSERT(data_len > 0);
-
- xmm5 = _mm_setzero_ps();
- xmm6 = _mm_setzero_ps();
-
- xmm0 = _mm_load_ss(data++);
- xmm2 = xmm0;
- xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
- xmm3 = _mm_setzero_ps();
-
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm5 = _mm_add_ps(xmm5, xmm0);
-
- data_len--;
-
- while(data_len)
- {
- xmm0 = _mm_load1_ps(data++);
-
- xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
- xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
- xmm3 = _mm_move_ss(xmm3, xmm2);
- xmm2 = _mm_move_ss(xmm2, xmm0);
-
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm3);
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm6 = _mm_add_ps(xmm6, xmm1);
- xmm5 = _mm_add_ps(xmm5, xmm0);
-
- data_len--;
- }
-
- _mm_storeu_ps(autoc, xmm5);
- _mm_storeu_ps(autoc+4, xmm6);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- __m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
-
- (void) lag;
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= 12);
- FLAC__ASSERT(lag <= data_len);
- FLAC__ASSERT(data_len > 0);
-
- xmm5 = _mm_setzero_ps();
- xmm6 = _mm_setzero_ps();
- xmm7 = _mm_setzero_ps();
-
- xmm0 = _mm_load_ss(data++);
- xmm2 = xmm0;
- xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
- xmm3 = _mm_setzero_ps();
- xmm4 = _mm_setzero_ps();
-
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm5 = _mm_add_ps(xmm5, xmm0);
-
- data_len--;
-
- while(data_len)
- {
- xmm0 = _mm_load1_ps(data++);
-
- xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
- xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
- xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
- xmm4 = _mm_move_ss(xmm4, xmm3);
- xmm3 = _mm_move_ss(xmm3, xmm2);
- xmm2 = _mm_move_ss(xmm2, xmm0);
-
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm2);
- xmm5 = _mm_add_ps(xmm5, xmm1);
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm3);
- xmm6 = _mm_add_ps(xmm6, xmm1);
- xmm0 = _mm_mul_ps(xmm0, xmm4);
- xmm7 = _mm_add_ps(xmm7, xmm0);
-
- data_len--;
- }
-
- _mm_storeu_ps(autoc, xmm5);
- _mm_storeu_ps(autoc+4, xmm6);
- _mm_storeu_ps(autoc+8, xmm7);
-}
-
-FLAC__SSE_TARGET("sse")
-void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[])
-{
- __m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9;
-
- (void) lag;
- FLAC__ASSERT(lag > 0);
- FLAC__ASSERT(lag <= 16);
- FLAC__ASSERT(lag <= data_len);
- FLAC__ASSERT(data_len > 0);
-
- xmm6 = _mm_setzero_ps();
- xmm7 = _mm_setzero_ps();
- xmm8 = _mm_setzero_ps();
- xmm9 = _mm_setzero_ps();
-
- xmm0 = _mm_load_ss(data++);
- xmm2 = xmm0;
- xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
- xmm3 = _mm_setzero_ps();
- xmm4 = _mm_setzero_ps();
- xmm5 = _mm_setzero_ps();
-
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm6 = _mm_add_ps(xmm6, xmm0);
-
- data_len--;
-
- while(data_len)
- {
- xmm0 = _mm_load1_ps(data++);
-
- /* shift xmm5:xmm4:xmm3:xmm2 left by one float */
- xmm5 = _mm_shuffle_ps(xmm5, xmm5, _MM_SHUFFLE(2,1,0,3));
- xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
- xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
- xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
- xmm5 = _mm_move_ss(xmm5, xmm4);
- xmm4 = _mm_move_ss(xmm4, xmm3);
- xmm3 = _mm_move_ss(xmm3, xmm2);
- xmm2 = _mm_move_ss(xmm2, xmm0);
-
- /* xmm9|xmm8|xmm7|xmm6 += xmm0|xmm0|xmm0|xmm0 * xmm5|xmm4|xmm3|xmm2 */
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm5);
- xmm9 = _mm_add_ps(xmm9, xmm1);
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm4);
- xmm8 = _mm_add_ps(xmm8, xmm1);
- xmm1 = xmm0;
- xmm1 = _mm_mul_ps(xmm1, xmm3);
- xmm7 = _mm_add_ps(xmm7, xmm1);
- xmm0 = _mm_mul_ps(xmm0, xmm2);
- xmm6 = _mm_add_ps(xmm6, xmm0);
-
- data_len--;
- }
-
- _mm_storeu_ps(autoc, xmm6);
- _mm_storeu_ps(autoc+4, xmm7);
- _mm_storeu_ps(autoc+8, xmm8);
- _mm_storeu_ps(autoc+12,xmm9);
-}
-
-#endif /* FLAC__SSE_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/lpc.h"
-#ifdef FLAC__SSE2_SUPPORTED
-
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-
-#include <emmintrin.h> /* SSE2 */
-
-#define RESIDUAL16_RESULT(xmmN) curr = *data++; *residual++ = curr - (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
-#define DATA16_RESULT(xmmN) curr = *residual++ + (_mm_cvtsi128_si32(xmmN) >> lp_quantization); *data++ = curr;
-
-#define RESIDUAL32_RESULT(xmmN) residual[i] = data[i] - (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
-#define DATA32_RESULT(xmmN) data[i] = residual[i] + (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
-
-FLAC__SSE_TARGET("sse2")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- FLAC__int32 sum;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
- q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
- q11 = _mm_cvtsi32_si128(0xffff & qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q11, _mm_loadu_si128((const __m128i*)(data+i-12)));
- mull = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 11 */
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
- q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(data+i-11)));
- mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 10) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(data+i-10)));
- mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 9 */
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(data+i-9)));
- mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(data+i-8)));
- mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 7 */
- __m128i q0, q1, q2, q3, q4, q5, q6;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(data+i-7)));
- mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 6) {
- __m128i q0, q1, q2, q3, q4, q5;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(data+i-6)));
- mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 5 */
- __m128i q0, q1, q2, q3, q4;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(data+i-5)));
- mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- __m128i q0, q1, q2, q3;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(data+i-4)));
- mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 3 */
- __m128i q0, q1, q2;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(data+i-3)));
- mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 2) {
- __m128i q0, q1;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(data+i-2)));
- mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 1 */
- __m128i q0;
- q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ;
- summ = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(data+i-1)));
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- for(; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 12: sum += qlp_coeff[11] * data[i-12];
- case 11: sum += qlp_coeff[10] * data[i-11];
- case 10: sum += qlp_coeff[ 9] * data[i-10];
- case 9: sum += qlp_coeff[ 8] * data[i- 9];
- case 8: sum += qlp_coeff[ 7] * data[i- 8];
- case 7: sum += qlp_coeff[ 6] * data[i- 7];
- case 6: sum += qlp_coeff[ 5] * data[i- 6];
- case 5: sum += qlp_coeff[ 4] * data[i- 5];
- case 4: sum += qlp_coeff[ 3] * data[i- 4];
- case 3: sum += qlp_coeff[ 2] * data[i- 3];
- case 2: sum += qlp_coeff[ 1] * data[i- 2];
- case 1: sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
-}
-
-FLAC__SSE_TARGET("sse2")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- if(order <= 12) {
- if(order > 8) { /* order == 9, 10, 11, 12 */
- if(order > 10) { /* order == 11, 12 */
- if(order == 12) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0)); // 0 0 q[1] q[0]
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2)); // 0 0 q[3] q[2]
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4)); // 0 0 q[5] q[4]
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6)); // 0 0 q[7] q[6]
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8)); // 0 0 q[9] q[8]
- xmm5 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+10)); // 0 0 q[11] q[10]
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0 q[1] 0 q[0]
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0 q[3] 0 q[2]
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0 q[5] 0 q[4]
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0 q[7] 0 q[6]
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0 q[9] 0 q[8]
- xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0 q[11] 0 q[10]
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[11] * data[i-12];
- //sum += qlp_coeff[10] * data[i-11];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-12)); // 0 0 d[i-11] d[i-12]
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0 d[i-12] 0 d[i-11]
- xmm7 = _mm_mul_epu32(xmm7, xmm5); /* we use _unsigned_ multiplication and discard high dword of the result values */
-
- //sum += qlp_coeff[9] * data[i-10];
- //sum += qlp_coeff[8] * data[i-9];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm4);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[7] * data[i-8];
- //sum += qlp_coeff[6] * data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm3);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 11 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
- xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[10] * data[i-11];
- xmm7 = _mm_cvtsi32_si128(data[i-11]);
- xmm7 = _mm_mul_epu32(xmm7, xmm5);
-
- //sum += qlp_coeff[9] * data[i-10];
- //sum += qlp_coeff[8] * data[i-9];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm4);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[7] * data[i-8];
- //sum += qlp_coeff[6] * data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm3);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- }
- else { /* order == 9, 10 */
- if(order == 10) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[9] * data[i-10];
- //sum += qlp_coeff[8] * data[i-9];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epu32(xmm7, xmm4);
-
- //sum += qlp_coeff[7] * data[i-8];
- //sum += qlp_coeff[6] * data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm3);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 9 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[8] * data[i-9];
- xmm7 = _mm_cvtsi32_si128(data[i-9]);
- xmm7 = _mm_mul_epu32(xmm7, xmm4);
-
- //sum += qlp_coeff[7] * data[i-8];
- //sum += qlp_coeff[6] * data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm3);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- }
- }
- else if(order > 4) { /* order == 5, 6, 7, 8 */
- if(order > 6) { /* order == 7, 8 */
- if(order == 8) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[7] * data[i-8];
- //sum += qlp_coeff[6] * data[i-7];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epu32(xmm7, xmm3);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 7 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[6] * data[i-7];
- xmm7 = _mm_cvtsi32_si128(data[i-7]);
- xmm7 = _mm_mul_epu32(xmm7, xmm3);
-
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm2);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- }
- else { /* order == 5, 6 */
- if(order == 6) {
- __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[5] * data[i-6];
- //sum += qlp_coeff[4] * data[i-5];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epu32(xmm7, xmm2);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 5 */
- __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[4] * data[i-5];
- xmm7 = _mm_cvtsi32_si128(data[i-5]);
- xmm7 = _mm_mul_epu32(xmm7, xmm2);
-
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm1);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- }
- }
- else { /* order == 1, 2, 3, 4 */
- if(order > 2) { /* order == 3, 4 */
- if(order == 4) {
- __m128i xmm0, xmm1, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[3] * data[i-4];
- //sum += qlp_coeff[2] * data[i-3];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epu32(xmm7, xmm1);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 3 */
- __m128i xmm0, xmm1, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[2] * data[i-3];
- xmm7 = _mm_cvtsi32_si128(data[i-3]);
- xmm7 = _mm_mul_epu32(xmm7, xmm1);
-
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epu32(xmm6, xmm0);
- xmm7 = _mm_add_epi32(xmm7, xmm6);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- }
- else { /* order == 1, 2 */
- if(order == 2) {
- __m128i xmm0, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[1] * data[i-2];
- //sum += qlp_coeff[0] * data[i-1];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epu32(xmm7, xmm0);
-
- xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL32_RESULT(xmm7);
- }
- }
- else { /* order == 1 */
- for(i = 0; i < (int)data_len; i++)
- residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
- }
- }
- }
- }
- else { /* order > 12 */
- FLAC__int32 sum;
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
-}
-
-#if defined FLAC__CPU_IA32 && !defined FLAC__HAS_NASM /* unused for x64; not better than MMX asm */
-
-FLAC__SSE_TARGET("sse2")
-void FLAC__lpc_restore_signal_16_intrin_sse2(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-{
- if (order < 8 || order > 12) {
- FLAC__lpc_restore_signal(residual, data_len, qlp_coeff, order, lp_quantization, data);
- return;
- }
- if (data_len == 0)
- return;
-
- FLAC__ASSERT(order >= 8);
- FLAC__ASSERT(order <= 12);
-
- if(order > 8) { /* order == 9, 10, 11, 12 */
- FLAC__int32 curr;
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
- xmm0 = _mm_loadu_si128((const __m128i*)(qlp_coeff+0));
- xmm6 = _mm_loadu_si128((const __m128i*)(qlp_coeff+4));
- xmm1 = _mm_loadu_si128((const __m128i*)(qlp_coeff+8)); /* read 0 to 3 uninitialized coeffs... */
- switch(order) /* ...and zero them out */
- {
- case 9:
- xmm1 = _mm_slli_si128(xmm1, 12); xmm1 = _mm_srli_si128(xmm1, 12); break;
- case 10:
- xmm1 = _mm_slli_si128(xmm1, 8); xmm1 = _mm_srli_si128(xmm1, 8); break;
- case 11:
- xmm1 = _mm_slli_si128(xmm1, 4); xmm1 = _mm_srli_si128(xmm1, 4); break;
- }
- xmm2 = _mm_setzero_si128();
- xmm0 = _mm_packs_epi32(xmm0, xmm6);
- xmm1 = _mm_packs_epi32(xmm1, xmm2);
-
- xmm4 = _mm_loadu_si128((const __m128i*)(data-12));
- xmm5 = _mm_loadu_si128((const __m128i*)(data-8));
- xmm3 = _mm_loadu_si128((const __m128i*)(data-4));
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(0,1,2,3));
- xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(0,1,2,3));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(0,1,2,3));
- xmm4 = _mm_packs_epi32(xmm4, xmm2);
- xmm3 = _mm_packs_epi32(xmm3, xmm5);
-
- xmm7 = _mm_slli_si128(xmm1, 2);
- xmm7 = _mm_or_si128(xmm7, _mm_srli_si128(xmm0, 14));
- xmm2 = _mm_slli_si128(xmm0, 2);
-
- /* xmm0, xmm1: qlp_coeff
- xmm2, xmm7: qlp_coeff << 16 bit
- xmm3, xmm4: data */
-
- xmm5 = _mm_madd_epi16(xmm4, xmm1);
- xmm6 = _mm_madd_epi16(xmm3, xmm0);
- xmm6 = _mm_add_epi32(xmm6, xmm5);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- data_len--;
-
- if(data_len % 2) {
- xmm6 = _mm_srli_si128(xmm3, 14);
- xmm4 = _mm_slli_si128(xmm4, 2);
- xmm3 = _mm_slli_si128(xmm3, 2);
- xmm4 = _mm_or_si128(xmm4, xmm6);
- xmm3 = _mm_insert_epi16(xmm3, curr, 0);
-
- xmm5 = _mm_madd_epi16(xmm4, xmm1);
- xmm6 = _mm_madd_epi16(xmm3, xmm0);
- xmm6 = _mm_add_epi32(xmm6, xmm5);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- data_len--;
- }
-
- while(data_len) { /* data_len is a multiple of 2 */
- /* 1 _mm_slli_si128 per data element less but we need shifted qlp_coeff in xmm2:xmm7 */
- xmm6 = _mm_srli_si128(xmm3, 12);
- xmm4 = _mm_slli_si128(xmm4, 4);
- xmm3 = _mm_slli_si128(xmm3, 4);
- xmm4 = _mm_or_si128(xmm4, xmm6);
- xmm3 = _mm_insert_epi16(xmm3, curr, 1);
-
- xmm5 = _mm_madd_epi16(xmm4, xmm7);
- xmm6 = _mm_madd_epi16(xmm3, xmm2);
- xmm6 = _mm_add_epi32(xmm6, xmm5);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- xmm3 = _mm_insert_epi16(xmm3, curr, 0);
-
- xmm5 = _mm_madd_epi16(xmm4, xmm1);
- xmm6 = _mm_madd_epi16(xmm3, xmm0);
- xmm6 = _mm_add_epi32(xmm6, xmm5);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- data_len-=2;
- }
- } /* endif(order > 8) */
- else
- {
- FLAC__int32 curr;
- __m128i xmm0, xmm1, xmm3, xmm6;
- xmm0 = _mm_loadu_si128((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadu_si128((const __m128i*)(qlp_coeff+4));
- xmm0 = _mm_packs_epi32(xmm0, xmm1);
-
- xmm1 = _mm_loadu_si128((const __m128i*)(data-8));
- xmm3 = _mm_loadu_si128((const __m128i*)(data-4));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(0,1,2,3));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(0,1,2,3));
- xmm3 = _mm_packs_epi32(xmm3, xmm1);
-
- /* xmm0: qlp_coeff
- xmm3: data */
-
- xmm6 = _mm_madd_epi16(xmm3, xmm0);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- data_len--;
-
- while(data_len) {
- xmm3 = _mm_slli_si128(xmm3, 2);
- xmm3 = _mm_insert_epi16(xmm3, curr, 0);
-
- xmm6 = _mm_madd_epi16(xmm3, xmm0);
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 8));
- xmm6 = _mm_add_epi32(xmm6, _mm_srli_si128(xmm6, 4));
-
- DATA16_RESULT(xmm6);
-
- data_len--;
- }
- }
-}
-
-#endif /* defined FLAC__CPU_IA32 && !defined FLAC__HAS_NASM */
-
-#endif /* FLAC__SSE2_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/lpc.h"
-#ifdef FLAC__SSE4_1_SUPPORTED
-
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-
-#include <smmintrin.h> /* SSE4.1 */
-
-#if defined FLAC__CPU_IA32 /* unused for x64 */
-
-#define RESIDUAL64_RESULT(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt))
-#define RESIDUAL64_RESULT1(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization))
-
-FLAC__SSE_TARGET("sse4.1")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
- FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm_sra_epi64() so we have to use _mm_srl_epi64() */
-
- if(order <= 12) {
- if(order > 8) { /* order == 9, 10, 11, 12 */
- if(order > 10) { /* order == 11, 12 */
- if(order == 12) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0)); // 0 0 q[1] q[0]
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2)); // 0 0 q[3] q[2]
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4)); // 0 0 q[5] q[4]
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6)); // 0 0 q[7] q[6]
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8)); // 0 0 q[9] q[8]
- xmm5 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+10)); // 0 0 q[11] q[10]
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0 q[1] 0 q[0]
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0 q[3] 0 q[2]
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0 q[5] 0 q[4]
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0 q[7] 0 q[6]
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0 q[9] 0 q[8]
- xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0 q[11] 0 q[10]
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- //sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-12)); // 0 0 d[i-11] d[i-12]
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0 d[i-12] 0 d[i-11]
- xmm7 = _mm_mul_epi32(xmm7, xmm5);
-
- //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm4);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm3);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT1(xmm7);
- }
- }
- else { /* order == 11 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
- xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[10] * (FLAC__int64)data[i-11];
- xmm7 = _mm_cvtsi32_si128(data[i-11]);
- xmm7 = _mm_mul_epi32(xmm7, xmm5);
-
- //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm4);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm3);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT1(xmm7);
- }
- }
- }
- else { /* order == 9, 10 */
- if(order == 10) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
- xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
- //sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-10));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epi32(xmm7, xmm4);
-
- //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm3);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- else { /* order == 9 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[8] * (FLAC__int64)data[i-9];
- xmm7 = _mm_cvtsi32_si128(data[i-9]);
- xmm7 = _mm_mul_epi32(xmm7, xmm4);
-
- //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm3);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- }
- }
- else if(order > 4) { /* order == 5, 6, 7, 8 */
- if(order > 6) { /* order == 7, 8 */
- if(order == 8) {
- __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
- xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
- //sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-8));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epi32(xmm7, xmm3);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- else { /* order == 7 */
- __m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[6] * (FLAC__int64)data[i-7];
- xmm7 = _mm_cvtsi32_si128(data[i-7]);
- xmm7 = _mm_mul_epi32(xmm7, xmm3);
-
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm2);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- }
- else { /* order == 5, 6 */
- if(order == 6) {
- __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
- xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
- //sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-6));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epi32(xmm7, xmm2);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- else { /* order == 5 */
- __m128i xmm0, xmm1, xmm2, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[4] * (FLAC__int64)data[i-5];
- xmm7 = _mm_cvtsi32_si128(data[i-5]);
- xmm7 = _mm_mul_epi32(xmm7, xmm2);
-
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm1);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- }
- }
- else { /* order == 1, 2, 3, 4 */
- if(order > 2) { /* order == 3, 4 */
- if(order == 4) {
- __m128i xmm0, xmm1, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
- xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
- //sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-4));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epi32(xmm7, xmm1);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- else { /* order == 3 */
- __m128i xmm0, xmm1, xmm6, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
-
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum = qlp_coeff[2] * (FLAC__int64)data[i-3];
- xmm7 = _mm_cvtsi32_si128(data[i-3]);
- xmm7 = _mm_mul_epi32(xmm7, xmm1);
-
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm6 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
- xmm6 = _mm_mul_epi32(xmm6, xmm0);
- xmm7 = _mm_add_epi64(xmm7, xmm6);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- }
- else { /* order == 1, 2 */
- if(order == 2) {
- __m128i xmm0, xmm7;
- xmm0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = 0;
- //sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
- //sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm7 = _mm_loadl_epi64((const __m128i*)(data+i-2));
- xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
- xmm7 = _mm_mul_epi32(xmm7, xmm0);
-
- xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
- RESIDUAL64_RESULT(xmm7);
- }
- }
- else { /* order == 1 */
- __m128i xmm0, xmm7;
- xmm0 = _mm_cvtsi32_si128(qlp_coeff[0]);
-
- for(i = 0; i < (int)data_len; i++) {
- //sum = qlp_coeff[0] * (FLAC__int64)data[i-1];
- xmm7 = _mm_cvtsi32_si128(data[i-1]);
- xmm7 = _mm_mul_epi32(xmm7, xmm0);
- RESIDUAL64_RESULT(xmm7);
- }
- }
- }
- }
- }
- else { /* order > 12 */
- FLAC__int64 sum;
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-
-FLAC__SSE_TARGET("sse4.1")
-void FLAC__lpc_restore_signal_wide_intrin_sse41(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
-{
- int i;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- if (!data_len)
- return;
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
- FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm_sra_epi64() so we have to use _mm_srl_epi64() */
-
- if(order <= 12) {
- if(order > 8) { /* order == 9, 10, 11, 12 */
- if(order > 10) { /* order == 11, 12 */
- __m128i qlp[6], dat[6];
- __m128i summ, temp;
- qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0)); // 0 0 q[1] q[0]
- qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2)); // 0 0 q[3] q[2]
- qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4)); // 0 0 q[5] q[4]
- qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6)); // 0 0 q[7] q[6]
- qlp[4] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8)); // 0 0 q[9] q[8]
- if (order == 12)
- qlp[5] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+10)); // 0 0 q[11] q[10]
- else
- qlp[5] = _mm_cvtsi32_si128(qlp_coeff[10]); // 0 0 0 q[10]
-
- qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1)); // 0 q[0] 0 q[1]
- qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1)); // 0 q[2] 0 q[3]
- qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1)); // 0 q[4] 0 q[5]
- qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1)); // 0 q[5] 0 q[7]
- qlp[4] = _mm_shuffle_epi32(qlp[4], _MM_SHUFFLE(2,0,3,1)); // 0 q[8] 0 q[9]
- qlp[5] = _mm_shuffle_epi32(qlp[5], _MM_SHUFFLE(2,0,3,1)); // 0 q[10] 0 q[11]
-
- dat[5] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-12))); // ? d[i-11] ? d[i-12]
- dat[4] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-10))); // ? d[i-9] ? d[i-10]
- dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 ))); // ? d[i-7] ? d[i-8]
- dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 ))); // ? d[i-5] ? d[i-6]
- dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 ))); // ? d[i-3] ? d[i-4]
- dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 ))); // ? d[i-1] ? d[i-2]
-
- summ = _mm_mul_epi32(dat[5], qlp[5]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[4], qlp[4]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8)); // ?_64 sum_64
- summ = _mm_srl_epi64(summ, cnt); // ?_64 (sum >> lp_quantization)_64 == ?_32 ?_32 ?_32 (sum >> lp_quantization)_32
- temp = _mm_cvtsi32_si128(residual[0]); // 0 0 0 r[i]
- temp = _mm_add_epi32(temp, summ); // ? ? ? d[i]
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat[5] = _mm_alignr_epi8(dat[4], dat[5], 8); // ? d[i-10] ? d[i-11]
- dat[4] = _mm_alignr_epi8(dat[3], dat[4], 8); // ? d[i-8] ? d[i-9]
- dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8); // ? d[i-6] ? d[i-7]
- dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8); // ? d[i-4] ? d[i-5]
- dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8); // ? d[i-2] ? d[i-3]
- dat[0] = _mm_alignr_epi8(temp, dat[0], 8); // ? d[i ] ? d[i-1]
-
- summ = _mm_mul_epi32(dat[5], qlp[5]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[4], qlp[4]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8)); // ?_64 sum_64
- summ = _mm_srl_epi64(summ, cnt); // ?_64 (sum >> lp_quantization)_64 == ?_32 ?_32 ?_32 (sum >> lp_quantization)_32
- temp = _mm_cvtsi32_si128(residual[i]); // 0 0 0 r[i]
- temp = _mm_add_epi32(temp, summ); // ? ? ? d[i]
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- else { /* order == 9, 10 */
- __m128i qlp[5], dat[5];
- __m128i summ, temp;
- qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- if (order == 10)
- qlp[4] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+8));
- else
- qlp[4] = _mm_cvtsi32_si128(qlp_coeff[8]);
-
- qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
- qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
- qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
- qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1));
- qlp[4] = _mm_shuffle_epi32(qlp[4], _MM_SHUFFLE(2,0,3,1));
-
- dat[4] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-10)));
- dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 )));
- dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
- dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
- dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
-
- summ = _mm_mul_epi32(dat[4], qlp[4]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat[4] = _mm_alignr_epi8(dat[3], dat[4], 8);
- dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8);
- dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
- dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
- dat[0] = _mm_alignr_epi8(temp, dat[0], 8);
-
- summ = _mm_mul_epi32(dat[4], qlp[4]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[3], qlp[3]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- }
- else if(order > 4) { /* order == 5, 6, 7, 8 */
- if(order > 6) { /* order == 7, 8 */
- __m128i qlp[4], dat[4];
- __m128i summ, temp;
- qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- if (order == 8)
- qlp[3] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+6));
- else
- qlp[3] = _mm_cvtsi32_si128(qlp_coeff[6]);
-
- qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
- qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
- qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
- qlp[3] = _mm_shuffle_epi32(qlp[3], _MM_SHUFFLE(2,0,3,1));
-
- dat[3] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-8 )));
- dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
- dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
- dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
-
- summ = _mm_mul_epi32(dat[3], qlp[3]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat[3] = _mm_alignr_epi8(dat[2], dat[3], 8);
- dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
- dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
- dat[0] = _mm_alignr_epi8(temp, dat[0], 8);
-
- summ = _mm_mul_epi32(dat[3], qlp[3]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[2], qlp[2]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- else { /* order == 5, 6 */
- __m128i qlp[3], dat[3];
- __m128i summ, temp;
- qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- if (order == 6)
- qlp[2] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+4));
- else
- qlp[2] = _mm_cvtsi32_si128(qlp_coeff[4]);
-
- qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
- qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
- qlp[2] = _mm_shuffle_epi32(qlp[2], _MM_SHUFFLE(2,0,3,1));
-
- dat[2] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-6 )));
- dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
- dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
-
- summ = _mm_mul_epi32(dat[2], qlp[2]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat[2] = _mm_alignr_epi8(dat[1], dat[2], 8);
- dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
- dat[0] = _mm_alignr_epi8(temp, dat[0], 8);
-
- summ = _mm_mul_epi32(dat[2], qlp[2]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[1], qlp[1]));
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- }
- else { /* order == 1, 2, 3, 4 */
- if(order > 2) { /* order == 3, 4 */
- __m128i qlp[2], dat[2];
- __m128i summ, temp;
- qlp[0] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+0));
- if (order == 4)
- qlp[1] = _mm_loadl_epi64((const __m128i*)(qlp_coeff+2));
- else
- qlp[1] = _mm_cvtsi32_si128(qlp_coeff[2]);
-
- qlp[0] = _mm_shuffle_epi32(qlp[0], _MM_SHUFFLE(2,0,3,1));
- qlp[1] = _mm_shuffle_epi32(qlp[1], _MM_SHUFFLE(2,0,3,1));
-
- dat[1] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-4 )));
- dat[0] = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
-
- summ = _mm_mul_epi32(dat[1], qlp[1]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat[1] = _mm_alignr_epi8(dat[0], dat[1], 8);
- dat[0] = _mm_alignr_epi8(temp, dat[0], 8);
-
- summ = _mm_mul_epi32(dat[1], qlp[1]) ;
- summ = _mm_add_epi64(summ, _mm_mul_epi32(dat[0], qlp[0]));
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- else { /* order == 1, 2 */
- if(order == 2) {
- __m128i qlp0, dat0;
- __m128i summ, temp;
- qlp0 = _mm_loadl_epi64((const __m128i*)(qlp_coeff));
- qlp0 = _mm_shuffle_epi32(qlp0, _MM_SHUFFLE(2,0,3,1));
-
- dat0 = _mm_cvtepu32_epi64(_mm_loadl_epi64((const __m128i*)(data-2 )));
-
- summ = _mm_mul_epi32(dat0, qlp0) ;
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- dat0 = _mm_alignr_epi8(temp, dat0, 8);
-
- summ = _mm_mul_epi32(dat0, qlp0) ;
-
- summ = _mm_add_epi64(summ, _mm_srli_si128(summ, 8));
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- else { /* order == 1 */
- __m128i qlp0;
- __m128i summ, temp;
- qlp0 = _mm_cvtsi32_si128(qlp_coeff[0]);
- temp = _mm_cvtsi32_si128(data[-1]);
-
- summ = _mm_mul_epi32(temp, qlp0);
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[0]);
- temp = _mm_add_epi32(temp, summ);
- data[0] = _mm_cvtsi128_si32(temp);
-
- for(i = 1; i < (int)data_len; i++) {
- summ = _mm_mul_epi32(temp, qlp0) ;
- summ = _mm_srl_epi64(summ, cnt);
- temp = _mm_cvtsi32_si128(residual[i]);
- temp = _mm_add_epi32(temp, summ);
- data[i] = _mm_cvtsi128_si32(temp);
- }
- }
- }
- }
- }
- else { /* order > 12 */
- FLAC__int64 sum;
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
- case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
- case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
- case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
- case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
- case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
- case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
- case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
- case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
- case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
- case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
- case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
- case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
- case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
- case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
- case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
- case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
- case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
- case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
- case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
- sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
- sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
- sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
- sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
- sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
- sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
- sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
- sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
- sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
- sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
- sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
- sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
- }
- data[i] = residual[i] + (FLAC__int32)(sum >> lp_quantization);
- }
- }
-}
-
-#endif /* defined FLAC__CPU_IA32 */
-
-FLAC__SSE_TARGET("sse4.1")
-void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
-{
- int i;
- FLAC__int32 sum;
- __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
-
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= 32);
-
- if(order <= 12) {
- if(order > 8) {
- if(order > 10) {
- if(order == 12) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
- q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
- q11 = _mm_cvtsi32_si128(qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q11, _mm_loadu_si128((const __m128i*)(data+i-12)));
- mull = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 11 */
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
- q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(data+i-11)));
- mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 10) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
- q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(data+i-10)));
- mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 9 */
- __m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
- q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(data+i-9)));
- mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- else if(order > 4) {
- if(order > 6) {
- if(order == 8) {
- __m128i q0, q1, q2, q3, q4, q5, q6, q7;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
- q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(data+i-8)));
- mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 7 */
- __m128i q0, q1, q2, q3, q4, q5, q6;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
- q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(data+i-7)));
- mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 6) {
- __m128i q0, q1, q2, q3, q4, q5;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
- q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(data+i-6)));
- mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 5 */
- __m128i q0, q1, q2, q3, q4;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
- q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(data+i-5)));
- mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- else {
- if(order > 2) {
- if(order == 4) {
- __m128i q0, q1, q2, q3;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
- q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(data+i-4)));
- mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 3 */
- __m128i q0, q1, q2;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
- q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(data+i-3)));
- mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- else {
- if(order == 2) {
- __m128i q0, q1;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
- q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ, mull;
- summ = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(data+i-2)));
- mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- else { /* order == 1 */
- __m128i q0;
- q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
-
- for(i = 0; i < (int)data_len-3; i+=4) {
- __m128i summ;
- summ = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(data+i-1)));
- summ = _mm_sra_epi32(summ, cnt);
- _mm_storeu_si128((__m128i*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(data+i)), summ));
- }
- }
- }
- }
- for(; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 12: sum += qlp_coeff[11] * data[i-12];
- case 11: sum += qlp_coeff[10] * data[i-11];
- case 10: sum += qlp_coeff[ 9] * data[i-10];
- case 9: sum += qlp_coeff[ 8] * data[i- 9];
- case 8: sum += qlp_coeff[ 7] * data[i- 8];
- case 7: sum += qlp_coeff[ 6] * data[i- 7];
- case 6: sum += qlp_coeff[ 5] * data[i- 6];
- case 5: sum += qlp_coeff[ 4] * data[i- 5];
- case 4: sum += qlp_coeff[ 3] * data[i- 4];
- case 3: sum += qlp_coeff[ 2] * data[i- 3];
- case 2: sum += qlp_coeff[ 1] * data[i- 2];
- case 1: sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
- else { /* order > 12 */
- for(i = 0; i < (int)data_len; i++) {
- sum = 0;
- switch(order) {
- case 32: sum += qlp_coeff[31] * data[i-32];
- case 31: sum += qlp_coeff[30] * data[i-31];
- case 30: sum += qlp_coeff[29] * data[i-30];
- case 29: sum += qlp_coeff[28] * data[i-29];
- case 28: sum += qlp_coeff[27] * data[i-28];
- case 27: sum += qlp_coeff[26] * data[i-27];
- case 26: sum += qlp_coeff[25] * data[i-26];
- case 25: sum += qlp_coeff[24] * data[i-25];
- case 24: sum += qlp_coeff[23] * data[i-24];
- case 23: sum += qlp_coeff[22] * data[i-23];
- case 22: sum += qlp_coeff[21] * data[i-22];
- case 21: sum += qlp_coeff[20] * data[i-21];
- case 20: sum += qlp_coeff[19] * data[i-20];
- case 19: sum += qlp_coeff[18] * data[i-19];
- case 18: sum += qlp_coeff[17] * data[i-18];
- case 17: sum += qlp_coeff[16] * data[i-17];
- case 16: sum += qlp_coeff[15] * data[i-16];
- case 15: sum += qlp_coeff[14] * data[i-15];
- case 14: sum += qlp_coeff[13] * data[i-14];
- case 13: sum += qlp_coeff[12] * data[i-13];
- sum += qlp_coeff[11] * data[i-12];
- sum += qlp_coeff[10] * data[i-11];
- sum += qlp_coeff[ 9] * data[i-10];
- sum += qlp_coeff[ 8] * data[i- 9];
- sum += qlp_coeff[ 7] * data[i- 8];
- sum += qlp_coeff[ 6] * data[i- 7];
- sum += qlp_coeff[ 5] * data[i- 6];
- sum += qlp_coeff[ 4] * data[i- 5];
- sum += qlp_coeff[ 3] * data[i- 4];
- sum += qlp_coeff[ 2] * data[i- 3];
- sum += qlp_coeff[ 1] * data[i- 2];
- sum += qlp_coeff[ 0] * data[i- 1];
- }
- residual[i] = data[i] - (sum >> lp_quantization);
- }
- }
-}
-
-#endif /* FLAC__SSE4_1_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
-#endif /* FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy() */
-
-#include "private/md5.h"
-#include "share/alloc.h"
-#include "share/endswap.h"
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest. This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- *
- * Changed so as no longer to depend on Colin Plumb's `usual.h' header
- * definitions; now uses stuff from dpkg's config.h.
- * - Ian Jackson <ijackson@nyx.cs.du.edu>.
- * Still in the public domain.
- *
- * Josh Coalson: made some changes to integrate with libFLAC.
- * Still in the public domain.
- */
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/* This is the central step in the MD5 algorithm. */
-#define MD5STEP(f,w,x,y,z,in,s) \
- (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data. MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-static void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16])
-{
- register FLAC__uint32 a, b, c, d;
-
- a = buf[0];
- b = buf[1];
- c = buf[2];
- d = buf[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- buf[0] += a;
- buf[1] += b;
- buf[2] += c;
- buf[3] += d;
-}
-
-#if WORDS_BIGENDIAN
-//@@@@@@ OPT: use bswap/intrinsics
-static void byteSwap(FLAC__uint32 *buf, unsigned words)
-{
- register FLAC__uint32 x;
- do {
- x = *buf;
- x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff);
- *buf++ = (x >> 16) | (x << 16);
- } while (--words);
-}
-static void byteSwapX16(FLAC__uint32 *buf)
-{
- register FLAC__uint32 x;
-
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
- x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf = (x >> 16) | (x << 16);
-}
-#else
-#define byteSwap(buf, words)
-#define byteSwapX16(buf)
-#endif
-
-/*
- * Update context to reflect the concatenation of another buffer full
- * of bytes.
- */
-static void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, unsigned len)
-{
- FLAC__uint32 t;
-
- /* Update byte count */
-
- t = ctx->bytes[0];
- if ((ctx->bytes[0] = t + len) < t)
- ctx->bytes[1]++; /* Carry from low to high */
-
- t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */
- if (t > len) {
- memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len);
- return;
- }
- /* First chunk is an odd size */
- memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- buf += t;
- len -= t;
-
- /* Process data in 64-byte chunks */
- while (len >= 64) {
- memcpy(ctx->in, buf, 64);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- buf += 64;
- len -= 64;
- }
-
- /* Handle any remaining bytes of data. */
- memcpy(ctx->in, buf, len);
-}
-
-/*
- * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
- * initialization constants.
- */
-void FLAC__MD5Init(FLAC__MD5Context *ctx)
-{
- ctx->buf[0] = 0x67452301;
- ctx->buf[1] = 0xefcdab89;
- ctx->buf[2] = 0x98badcfe;
- ctx->buf[3] = 0x10325476;
-
- ctx->bytes[0] = 0;
- ctx->bytes[1] = 0;
-
- ctx->internal_buf.p8 = 0;
- ctx->capacity = 0;
-}
-
-/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
- * 1 0* (64-bit count of bits processed, MSB-first)
- */
-void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
-{
- int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */
- FLAC__byte *p = (FLAC__byte *)ctx->in + count;
-
- /* Set the first char of padding to 0x80. There is always room. */
- *p++ = 0x80;
-
- /* Bytes of padding needed to make 56 bytes (-8..55) */
- count = 56 - 1 - count;
-
- if (count < 0) { /* Padding forces an extra block */
- memset(p, 0, count + 8);
- byteSwapX16(ctx->in);
- FLAC__MD5Transform(ctx->buf, ctx->in);
- p = (FLAC__byte *)ctx->in;
- count = 56;
- }
- memset(p, 0, count);
- byteSwap(ctx->in, 14);
-
- /* Append length in bits and transform */
- ctx->in[14] = ctx->bytes[0] << 3;
- ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
- FLAC__MD5Transform(ctx->buf, ctx->in);
-
- byteSwap(ctx->buf, 4);
- memcpy(digest, ctx->buf, 16);
- if (0 != ctx->internal_buf.p8) {
- free(ctx->internal_buf.p8);
- ctx->internal_buf.p8 = 0;
- ctx->capacity = 0;
- }
- memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
-}
-
-/*
- * Convert the incoming audio signal to a byte stream
- */
-static void format_input_(FLAC__multibyte *mbuf, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
-{
- FLAC__byte *buf_ = mbuf->p8;
- FLAC__int16 *buf16 = mbuf->p16;
- FLAC__int32 *buf32 = mbuf->p32;
- FLAC__int32 a_word;
- unsigned channel, sample;
-
- /* Storage in the output buffer, buf, is little endian. */
-
-#define BYTES_CHANNEL_SELECTOR(bytes, channels) (bytes * 100 + channels)
-
- /* First do the most commonly used combinations. */
- switch (BYTES_CHANNEL_SELECTOR (bytes_per_sample, channels)) {
- /* One byte per sample. */
- case (BYTES_CHANNEL_SELECTOR (1, 1)):
- for (sample = 0; sample < samples; sample++)
- *buf_++ = signal[0][sample];
- return;
-
- case (BYTES_CHANNEL_SELECTOR (1, 2)):
- for (sample = 0; sample < samples; sample++) {
- *buf_++ = signal[0][sample];
- *buf_++ = signal[1][sample];
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (1, 4)):
- for (sample = 0; sample < samples; sample++) {
- *buf_++ = signal[0][sample];
- *buf_++ = signal[1][sample];
- *buf_++ = signal[2][sample];
- *buf_++ = signal[3][sample];
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (1, 6)):
- for (sample = 0; sample < samples; sample++) {
- *buf_++ = signal[0][sample];
- *buf_++ = signal[1][sample];
- *buf_++ = signal[2][sample];
- *buf_++ = signal[3][sample];
- *buf_++ = signal[4][sample];
- *buf_++ = signal[5][sample];
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (1, 8)):
- for (sample = 0; sample < samples; sample++) {
- *buf_++ = signal[0][sample];
- *buf_++ = signal[1][sample];
- *buf_++ = signal[2][sample];
- *buf_++ = signal[3][sample];
- *buf_++ = signal[4][sample];
- *buf_++ = signal[5][sample];
- *buf_++ = signal[6][sample];
- *buf_++ = signal[7][sample];
- }
- return;
-
- /* Two bytes per sample. */
- case (BYTES_CHANNEL_SELECTOR (2, 1)):
- for (sample = 0; sample < samples; sample++)
- *buf16++ = H2LE_16(signal[0][sample]);
- return;
-
- case (BYTES_CHANNEL_SELECTOR (2, 2)):
- for (sample = 0; sample < samples; sample++) {
- *buf16++ = H2LE_16(signal[0][sample]);
- *buf16++ = H2LE_16(signal[1][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (2, 4)):
- for (sample = 0; sample < samples; sample++) {
- *buf16++ = H2LE_16(signal[0][sample]);
- *buf16++ = H2LE_16(signal[1][sample]);
- *buf16++ = H2LE_16(signal[2][sample]);
- *buf16++ = H2LE_16(signal[3][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (2, 6)):
- for (sample = 0; sample < samples; sample++) {
- *buf16++ = H2LE_16(signal[0][sample]);
- *buf16++ = H2LE_16(signal[1][sample]);
- *buf16++ = H2LE_16(signal[2][sample]);
- *buf16++ = H2LE_16(signal[3][sample]);
- *buf16++ = H2LE_16(signal[4][sample]);
- *buf16++ = H2LE_16(signal[5][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (2, 8)):
- for (sample = 0; sample < samples; sample++) {
- *buf16++ = H2LE_16(signal[0][sample]);
- *buf16++ = H2LE_16(signal[1][sample]);
- *buf16++ = H2LE_16(signal[2][sample]);
- *buf16++ = H2LE_16(signal[3][sample]);
- *buf16++ = H2LE_16(signal[4][sample]);
- *buf16++ = H2LE_16(signal[5][sample]);
- *buf16++ = H2LE_16(signal[6][sample]);
- *buf16++ = H2LE_16(signal[7][sample]);
- }
- return;
-
- /* Three bytes per sample. */
- case (BYTES_CHANNEL_SELECTOR (3, 1)):
- for (sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (3, 2)):
- for (sample = 0; sample < samples; sample++) {
- a_word = signal[0][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- a_word = signal[1][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- return;
-
- /* Four bytes per sample. */
- case (BYTES_CHANNEL_SELECTOR (4, 1)):
- for (sample = 0; sample < samples; sample++)
- *buf32++ = H2LE_32(signal[0][sample]);
- return;
-
- case (BYTES_CHANNEL_SELECTOR (4, 2)):
- for (sample = 0; sample < samples; sample++) {
- *buf32++ = H2LE_32(signal[0][sample]);
- *buf32++ = H2LE_32(signal[1][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (4, 4)):
- for (sample = 0; sample < samples; sample++) {
- *buf32++ = H2LE_32(signal[0][sample]);
- *buf32++ = H2LE_32(signal[1][sample]);
- *buf32++ = H2LE_32(signal[2][sample]);
- *buf32++ = H2LE_32(signal[3][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (4, 6)):
- for (sample = 0; sample < samples; sample++) {
- *buf32++ = H2LE_32(signal[0][sample]);
- *buf32++ = H2LE_32(signal[1][sample]);
- *buf32++ = H2LE_32(signal[2][sample]);
- *buf32++ = H2LE_32(signal[3][sample]);
- *buf32++ = H2LE_32(signal[4][sample]);
- *buf32++ = H2LE_32(signal[5][sample]);
- }
- return;
-
- case (BYTES_CHANNEL_SELECTOR (4, 8)):
- for (sample = 0; sample < samples; sample++) {
- *buf32++ = H2LE_32(signal[0][sample]);
- *buf32++ = H2LE_32(signal[1][sample]);
- *buf32++ = H2LE_32(signal[2][sample]);
- *buf32++ = H2LE_32(signal[3][sample]);
- *buf32++ = H2LE_32(signal[4][sample]);
- *buf32++ = H2LE_32(signal[5][sample]);
- *buf32++ = H2LE_32(signal[6][sample]);
- *buf32++ = H2LE_32(signal[7][sample]);
- }
- return;
-
- default:
- break;
- }
-
- /* General version. */
- switch (bytes_per_sample) {
- case 1:
- for (sample = 0; sample < samples; sample++)
- for (channel = 0; channel < channels; channel++)
- *buf_++ = signal[channel][sample];
- return;
-
- case 2:
- for (sample = 0; sample < samples; sample++)
- for (channel = 0; channel < channels; channel++)
- *buf16++ = H2LE_16(signal[channel][sample]);
- return;
-
- case 3:
- for (sample = 0; sample < samples; sample++)
- for (channel = 0; channel < channels; channel++) {
- a_word = signal[channel][sample];
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word; a_word >>= 8;
- *buf_++ = (FLAC__byte)a_word;
- }
- return;
-
- case 4:
- for (sample = 0; sample < samples; sample++)
- for (channel = 0; channel < channels; channel++)
- *buf32++ = H2LE_32(signal[channel][sample]);
- return;
-
- default:
- break;
- }
-}
-
-/*
- * Convert the incoming audio signal to a byte stream and FLAC__MD5Update it.
- */
-FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], unsigned channels, unsigned samples, unsigned bytes_per_sample)
-{
- const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
-
- /* overflow check */
- if ((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
- return false;
- if ((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
- return false;
-
- if (ctx->capacity < bytes_needed) {
- if (0 == (ctx->internal_buf.p8 = safe_realloc_(ctx->internal_buf.p8, bytes_needed))) {
- if (0 == (ctx->internal_buf.p8 = safe_malloc_(bytes_needed))) {
- ctx->capacity = 0;
- return false;
- }
- }
- ctx->capacity = bytes_needed;
- }
-
- format_input_(&ctx->internal_buf, signal, channels, samples, bytes_per_sample);
-
- FLAC__MD5Update(ctx, ctx->internal_buf.p8, bytes_needed);
-
- return true;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-
-#include "private/memory.h"
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-
-void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
-{
- void *x;
-
- FLAC__ASSERT(0 != aligned_address);
-
-#ifdef FLAC__ALIGN_MALLOC_DATA
- /* align on 32-byte (256-bit) boundary */
- x = safe_malloc_add_2op_(bytes, /*+*/31L);
- *aligned_address = (void*)(((uintptr_t)x + 31L) & -32L);
-#else
- x = safe_malloc_(bytes);
- *aligned_address = x;
-#endif
- return x;
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer)
-{
- FLAC__int32 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__int32 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer)
-{
- FLAC__uint32 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__uint32 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer)
-{
- FLAC__uint64 *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__uint64 *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, unsigned **unaligned_pointer, unsigned **aligned_pointer)
-{
- unsigned *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- unsigned *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer)
-{
- FLAC__real *pu; /* unaligned pointer */
- union { /* union needed to comply with C99 pointer aliasing rules */
- FLAC__real *pa; /* aligned pointer */
- void *pv; /* aligned pointer alias */
- } u;
-
- FLAC__ASSERT(elements > 0);
- FLAC__ASSERT(0 != unaligned_pointer);
- FLAC__ASSERT(0 != aligned_pointer);
- FLAC__ASSERT(unaligned_pointer != aligned_pointer);
-
- if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
- return false;
-
- pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
- if(0 == pu) {
- return false;
- }
- else {
- if(*unaligned_pointer != 0)
- free(*unaligned_pointer);
- *unaligned_pointer = pu;
- *aligned_pointer = u.pa;
- return true;
- }
-}
-
-#endif
-
-void *safe_malloc_mul_2op_p(size_t size1, size_t size2)
-{
- if(!size1 || !size2)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(size1 > SIZE_MAX / size2)
- return 0;
- return malloc(size1*size2);
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-
-#include <sys/stat.h> /* for stat(), maybe chmod() */
-
-#include "private/metadata.h"
-
-#include "FLAC/assert.h"
-#include "FLAC/stream_decoder.h"
-#include "share/alloc.h"
-#include "share/compat.h"
-#include "share/macros.h"
-#include "share/safe_str.h"
-#include "private/macros.h"
-#include "private/memory.h"
-
-/* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */
-#define safe_malloc_mul_2op_ safe_malloc_mul_2op_p
-
-/****************************************************************************
- *
- * Local function declarations
- *
- ***************************************************************************/
-
-static void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes);
-static void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes);
-static void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, unsigned bytes);
-static FLAC__uint32 unpack_uint32_(FLAC__byte *b, unsigned bytes);
-static FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, unsigned bytes);
-static FLAC__uint64 unpack_uint64_(FLAC__byte *b, unsigned bytes);
-
-static FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator);
-static FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block);
-static FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry, unsigned max_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_VorbisComment *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length);
-
-static FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block);
-static FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block);
-static FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block);
-static FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block);
-static FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length);
-
-static FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block);
-static FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, unsigned padding_length, FLAC__bool padding_is_last);
-static FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append);
-
-static void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator);
-static FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator);
-
-static unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb);
-static unsigned seek_to_first_metadata_block_(FILE *f);
-
-static FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append);
-static FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup);
-
-static FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status);
-
-static FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
-static FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
-static void cleanup_tempfile_(FILE **tempfile, char **tempfilename);
-
-static FLAC__bool get_file_stats_(const char *filename, struct flac_stat_s *stats);
-static void set_file_stats_(const char *filename, struct flac_stat_s *stats);
-
-static int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence);
-static FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle);
-
-static FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status);
-
-
-#ifdef FLAC__VALGRIND_TESTING
-static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
-{
- size_t ret = fwrite(ptr, size, nmemb, stream);
- if(!ferror(stream))
- fflush(stream);
- return ret;
-}
-#else
-#define local__fwrite fwrite
-#endif
-
-/****************************************************************************
- *
- * Level 0 implementation
- *
- ***************************************************************************/
-
-static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-typedef struct {
- FLAC__bool got_error;
- FLAC__StreamMetadata *object;
-} level0_client_data;
-
-static FLAC__StreamMetadata *get_one_metadata_block_(const char *filename, FLAC__MetadataType type)
-{
- level0_client_data cd;
- FLAC__StreamDecoder *decoder;
-
- FLAC__ASSERT(0 != filename);
-
- cd.got_error = false;
- cd.object = 0;
-
- decoder = FLAC__stream_decoder_new();
-
- if(0 == decoder)
- return 0;
-
- FLAC__stream_decoder_set_md5_checking(decoder, false);
- FLAC__stream_decoder_set_metadata_ignore_all(decoder);
- FLAC__stream_decoder_set_metadata_respond(decoder, type);
-
- if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &cd) != FLAC__STREAM_DECODER_INIT_STATUS_OK || cd.got_error) {
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
- return 0;
- }
-
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder) || cd.got_error) {
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
- if(0 != cd.object)
- FLAC__metadata_object_delete(cd.object);
- return 0;
- }
-
- (void)FLAC__stream_decoder_finish(decoder);
- FLAC__stream_decoder_delete(decoder);
-
- return cd.object;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo)
-{
- FLAC__StreamMetadata *object;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != streaminfo);
-
- object = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_STREAMINFO);
-
- if (object) {
- /* can just copy the contents since STREAMINFO has no internal structure */
- *streaminfo = *object;
- FLAC__metadata_object_delete(object);
- return true;
- }
- else {
- return false;
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != tags);
-
- *tags = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- return 0 != *tags;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != cuesheet);
-
- *cuesheet = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_CUESHEET);
-
- return 0 != *cuesheet;
-}
-
-FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- (void)decoder, (void)frame, (void)buffer, (void)client_data;
-
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
-}
-
-void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- level0_client_data *cd = (level0_client_data *)client_data;
- (void)decoder;
-
- /*
- * we assume we only get here when the one metadata block we were
- * looking for was passed to us
- */
- if(!cd->got_error && 0 == cd->object) {
- if(0 == (cd->object = FLAC__metadata_object_clone(metadata)))
- cd->got_error = true;
- }
-}
-
-void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- level0_client_data *cd = (level0_client_data *)client_data;
- (void)decoder;
-
- if(status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC)
- cd->got_error = true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors)
-{
- FLAC__Metadata_SimpleIterator *it;
- FLAC__uint64 max_area_seen = 0;
- FLAC__uint64 max_depth_seen = 0;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != picture);
-
- *picture = 0;
-
- it = FLAC__metadata_simple_iterator_new();
- if(0 == it)
- return false;
- if(!FLAC__metadata_simple_iterator_init(it, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
- FLAC__metadata_simple_iterator_delete(it);
- return false;
- }
- do {
- if(FLAC__metadata_simple_iterator_get_block_type(it) == FLAC__METADATA_TYPE_PICTURE) {
- FLAC__StreamMetadata *obj = FLAC__metadata_simple_iterator_get_block(it);
- FLAC__uint64 area = (FLAC__uint64)obj->data.picture.width * (FLAC__uint64)obj->data.picture.height;
- /* check constraints */
- if(
- (type == (FLAC__StreamMetadata_Picture_Type)(-1) || type == obj->data.picture.type) &&
- (mime_type == 0 || !strcmp(mime_type, obj->data.picture.mime_type)) &&
- (description == 0 || !strcmp((const char *)description, (const char *)obj->data.picture.description)) &&
- obj->data.picture.width <= max_width &&
- obj->data.picture.height <= max_height &&
- obj->data.picture.depth <= max_depth &&
- obj->data.picture.colors <= max_colors &&
- (area > max_area_seen || (area == max_area_seen && obj->data.picture.depth > max_depth_seen))
- ) {
- if(*picture)
- FLAC__metadata_object_delete(*picture);
- *picture = obj;
- max_area_seen = area;
- max_depth_seen = obj->data.picture.depth;
- }
- else {
- FLAC__metadata_object_delete(obj);
- }
- }
- } while(FLAC__metadata_simple_iterator_next(it));
-
- FLAC__metadata_simple_iterator_delete(it);
-
- return (0 != *picture);
-}
-
-
-/****************************************************************************
- *
- * Level 1 implementation
- *
- ***************************************************************************/
-
-#define SIMPLE_ITERATOR_MAX_PUSH_DEPTH (1+4)
-/* 1 for initial offset, +4 for our own personal use */
-
-struct FLAC__Metadata_SimpleIterator {
- FILE *file;
- char *filename, *tempfile_path_prefix;
- struct flac_stat_s stats;
- FLAC__bool has_stats;
- FLAC__bool is_writable;
- FLAC__Metadata_SimpleIteratorStatus status;
- FLAC__off_t offset[SIMPLE_ITERATOR_MAX_PUSH_DEPTH];
- FLAC__off_t first_offset; /* this is the offset to the STREAMINFO block */
- unsigned depth;
- /* this is the metadata block header of the current block we are pointing to: */
- FLAC__bool is_last;
- FLAC__MetadataType type;
- unsigned length;
-};
-
-FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[] = {
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR"
-};
-
-
-FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void)
-{
- FLAC__Metadata_SimpleIterator *iterator = calloc(1, sizeof(FLAC__Metadata_SimpleIterator));
-
- if(0 != iterator) {
- iterator->file = 0;
- iterator->filename = 0;
- iterator->tempfile_path_prefix = 0;
- iterator->has_stats = false;
- iterator->is_writable = false;
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- iterator->first_offset = iterator->offset[0] = -1;
- iterator->depth = 0;
- }
-
- return iterator;
-}
-
-static void simple_iterator_free_guts_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 != iterator->file) {
- fclose(iterator->file);
- iterator->file = 0;
- if(iterator->has_stats)
- set_file_stats_(iterator->filename, &iterator->stats);
- }
- if(0 != iterator->filename) {
- free(iterator->filename);
- iterator->filename = 0;
- }
- if(0 != iterator->tempfile_path_prefix) {
- free(iterator->tempfile_path_prefix);
- iterator->tempfile_path_prefix = 0;
- }
-}
-
-FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- simple_iterator_free_guts_(iterator);
- free(iterator);
-}
-
-FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
-
- FLAC__ASSERT(0 != iterator);
-
- status = iterator->status;
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- return status;
-}
-
-static FLAC__bool simple_iterator_prime_input_(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool read_only)
-{
- unsigned ret;
-
- FLAC__ASSERT(0 != iterator);
-
- if(read_only || 0 == (iterator->file = flac_fopen(iterator->filename, "r+b"))) {
- iterator->is_writable = false;
- if(read_only || errno == EACCES) {
- if(0 == (iterator->file = flac_fopen(iterator->filename, "rb"))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- }
- else {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- }
- else {
- iterator->is_writable = true;
- }
-
- ret = seek_to_first_metadata_block_(iterator->file);
- switch(ret) {
- case 0:
- iterator->depth = 0;
- iterator->first_offset = iterator->offset[iterator->depth] = ftello(iterator->file);
- return read_metadata_block_header_(iterator);
- case 1:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- case 2:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- case 3:
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE;
- return false;
- default:
- FLAC__ASSERT(0);
- return false;
- }
-}
-
-#if 0
-@@@ If we decide to finish implementing this, put this comment back in metadata.h
-/*
- * The 'tempfile_path_prefix' allows you to specify a directory where
- * tempfiles should go. Remember that if your metadata edits cause the
- * FLAC file to grow, the entire file will have to be rewritten. If
- * 'tempfile_path_prefix' is NULL, the temp file will be written in the
- * same directory as the original FLAC file. This makes replacing the
- * original with the tempfile fast but requires extra space in the same
- * partition for the tempfile. If space is a problem, you can pass a
- * directory name belonging to a different partition in
- * 'tempfile_path_prefix'. Note that you should use the forward slash
- * '/' as the directory separator. A trailing slash is not needed; it
- * will be added automatically.
- */
-FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool preserve_file_stats, const char *tempfile_path_prefix);
-#endif
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats)
-{
- const char *tempfile_path_prefix = 0; /*@@@ search for comments near 'flac_rename(...)' for what it will take to finish implementing this */
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != filename);
-
- simple_iterator_free_guts_(iterator);
-
- if(!read_only && preserve_file_stats)
- iterator->has_stats = get_file_stats_(filename, &iterator->stats);
-
- if(0 == (iterator->filename = strdup(filename))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(0 != tempfile_path_prefix && 0 == (iterator->tempfile_path_prefix = strdup(tempfile_path_prefix))) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- return simple_iterator_prime_input_(iterator, read_only);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->is_writable;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(iterator->is_last)
- return false;
-
- if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- iterator->offset[iterator->depth] = ftello(iterator->file);
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__off_t this_offset;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(iterator->offset[iterator->depth] == iterator->first_offset)
- return false;
-
- if(0 != fseeko(iterator->file, iterator->first_offset, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- this_offset = iterator->first_offset;
- if(!read_metadata_block_header_(iterator))
- return false;
-
- /* we ignore any error from ftello() and catch it in fseeko() */
- while(ftello(iterator->file) + (FLAC__off_t)iterator->length < iterator->offset[iterator->depth]) {
- if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- this_offset = ftello(iterator->file);
- if(!read_metadata_block_header_(iterator))
- return false;
- }
-
- iterator->offset[iterator->depth] = this_offset;
-
- return true;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->is_last;
-}
-
-/*@@@@add to tests*/
-FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->offset[iterator->depth];
-}
-
-FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->type;
-}
-
-/*@@@@add to tests*/
-FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- return iterator->length;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != id);
-
- if(iterator->type != FLAC__METADATA_TYPE_APPLICATION) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- if(fread(id, 1, id_bytes, iterator->file) != id_bytes) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
-
- /* back up */
- if(0 != fseeko(iterator->file, -((int)id_bytes), SEEK_CUR)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__StreamMetadata *block = FLAC__metadata_object_new(iterator->type);
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(0 != block) {
- block->is_last = iterator->is_last;
- block->length = iterator->length;
-
- if(!read_metadata_block_data_(iterator, block)) {
- FLAC__metadata_object_delete(block);
- return 0;
- }
-
- /* back up to the beginning of the block data to stay consistent */
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- FLAC__metadata_object_delete(block);
- return 0;
- }
- }
- else
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- return block;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
-{
- FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != block);
-
- if(!iterator->is_writable) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
- return false;
- }
-
- if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO || block->type == FLAC__METADATA_TYPE_STREAMINFO) {
- if(iterator->type != block->type) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
- }
-
- block->is_last = iterator->is_last;
-
- if(iterator->length == block->length)
- return write_metadata_block_stationary_(iterator, block);
- else if(iterator->length > block->length) {
- if(use_padding && iterator->length >= FLAC__STREAM_METADATA_HEADER_LENGTH + block->length) {
- ret = write_metadata_block_stationary_with_padding_(iterator, block, iterator->length - FLAC__STREAM_METADATA_HEADER_LENGTH - block->length, block->is_last);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/false);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else /* iterator->length < block->length */ {
- unsigned padding_leftover = 0;
- FLAC__bool padding_is_last = false;
- if(use_padding) {
- /* first see if we can even use padding */
- if(iterator->is_last) {
- use_padding = false;
- }
- else {
- const unsigned extra_padding_bytes_required = block->length - iterator->length;
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_next(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
- use_padding = false;
- }
- else {
- if(FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length == extra_padding_bytes_required) {
- padding_leftover = 0;
- block->is_last = iterator->is_last;
- }
- else if(iterator->length < extra_padding_bytes_required)
- use_padding = false;
- else {
- padding_leftover = FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length - extra_padding_bytes_required;
- padding_is_last = iterator->is_last;
- block->is_last = false;
- }
- }
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
- if(use_padding) {
- if(padding_leftover == 0) {
- ret = write_metadata_block_stationary_(iterator, block);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
- ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/false);
- FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
-{
- unsigned padding_leftover = 0;
- FLAC__bool padding_is_last = false;
-
- FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length;)
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
- FLAC__ASSERT(0 != block);
-
- if(!iterator->is_writable) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
- return false;
- }
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- block->is_last = iterator->is_last;
-
- if(use_padding) {
- /* first see if we can even use padding */
- if(iterator->is_last) {
- use_padding = false;
- }
- else {
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_next(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
- use_padding = false;
- }
- else {
- if(iterator->length == block->length) {
- padding_leftover = 0;
- block->is_last = iterator->is_last;
- }
- else if(iterator->length < FLAC__STREAM_METADATA_HEADER_LENGTH + block->length)
- use_padding = false;
- else {
- padding_leftover = iterator->length - block->length;
- padding_is_last = iterator->is_last;
- block->is_last = false;
- }
- }
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
- if(use_padding) {
- /* move to the next block, which is suitable padding */
- if(!FLAC__metadata_simple_iterator_next(iterator))
- return false;
- if(padding_leftover == 0) {
- ret = write_metadata_block_stationary_(iterator, block);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- else {
- FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
- ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
- }
- else {
- ret = rewrite_whole_file_(iterator, block, /*append=*/true);
- FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- return ret;
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding)
-{
- FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
- FLAC__bool ret;
-
- if(!iterator->is_writable) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
- return false;
- }
-
- if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
- return false;
- }
-
- if(use_padding) {
- FLAC__StreamMetadata *padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
- if(0 == padding) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- padding->length = iterator->length;
- if(!FLAC__metadata_simple_iterator_set_block(iterator, padding, false)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
- FLAC__metadata_object_delete(padding);
- if(!FLAC__metadata_simple_iterator_prev(iterator))
- return false;
- FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
- return true;
- }
- else {
- ret = rewrite_whole_file_(iterator, 0, /*append=*/false);
- FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
- return ret;
- }
-}
-
-
-
-/****************************************************************************
- *
- * Level 2 implementation
- *
- ***************************************************************************/
-
-
-typedef struct FLAC__Metadata_Node {
- FLAC__StreamMetadata *data;
- struct FLAC__Metadata_Node *prev, *next;
-} FLAC__Metadata_Node;
-
-struct FLAC__Metadata_Chain {
- char *filename; /* will be NULL if using callbacks */
- FLAC__bool is_ogg;
- FLAC__Metadata_Node *head;
- FLAC__Metadata_Node *tail;
- unsigned nodes;
- FLAC__Metadata_ChainStatus status;
- FLAC__off_t first_offset, last_offset;
- /*
- * This is the length of the chain initially read from the FLAC file.
- * it is used to compare against the current length to decide whether
- * or not the whole file has to be rewritten.
- */
- FLAC__off_t initial_length;
- /* @@@ hacky, these are currently only needed by ogg reader */
- FLAC__IOHandle handle;
- FLAC__IOCallback_Read read_cb;
-};
-
-struct FLAC__Metadata_Iterator {
- FLAC__Metadata_Chain *chain;
- FLAC__Metadata_Node *current;
-};
-
-FLAC_API const char * const FLAC__Metadata_ChainStatusString[] = {
- "FLAC__METADATA_CHAIN_STATUS_OK",
- "FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT",
- "FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE",
- "FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE",
- "FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE",
- "FLAC__METADATA_CHAIN_STATUS_BAD_METADATA",
- "FLAC__METADATA_CHAIN_STATUS_READ_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS",
- "FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH",
- "FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL"
-};
-
-
-static FLAC__Metadata_Node *node_new_(void)
-{
- return calloc(1, sizeof(FLAC__Metadata_Node));
-}
-
-static void node_delete_(FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- if(0 != node->data)
- FLAC__metadata_object_delete(node->data);
- free(node);
-}
-
-static void chain_init_(FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != chain);
-
- chain->filename = 0;
- chain->is_ogg = false;
- chain->head = chain->tail = 0;
- chain->nodes = 0;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- chain->initial_length = 0;
- chain->read_cb = 0;
-}
-
-static void chain_clear_(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *next;
-
- FLAC__ASSERT(0 != chain);
-
- for(node = chain->head; node; ) {
- next = node->next;
- node_delete_(node);
- node = next;
- }
-
- if(0 != chain->filename)
- free(chain->filename);
-
- chain_init_(chain);
-}
-
-static void chain_append_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
-
- node->next = node->prev = 0;
- node->data->is_last = true;
- if(0 != chain->tail)
- chain->tail->data->is_last = false;
-
- if(0 == chain->head)
- chain->head = node;
- else {
- FLAC__ASSERT(0 != chain->tail);
- chain->tail->next = node;
- node->prev = chain->tail;
- }
- chain->tail = node;
- chain->nodes++;
-}
-
-static void chain_remove_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != node);
-
- if(node == chain->head)
- chain->head = node->next;
- else
- node->prev->next = node->next;
-
- if(node == chain->tail)
- chain->tail = node->prev;
- else
- node->next->prev = node->prev;
-
- if(0 != chain->tail)
- chain->tail->data->is_last = true;
-
- chain->nodes--;
-}
-
-static void chain_delete_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- chain_remove_node_(chain, node);
- node_delete_(node);
-}
-
-static FLAC__off_t chain_calculate_length_(FLAC__Metadata_Chain *chain)
-{
- const FLAC__Metadata_Node *node;
- FLAC__off_t length = 0;
- for(node = chain->head; node; node = node->next)
- length += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- return length;
-}
-
-static void iterator_insert_node_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->chain);
- FLAC__ASSERT(0 != iterator->chain->head);
- FLAC__ASSERT(0 != iterator->chain->tail);
-
- node->data->is_last = false;
-
- node->prev = iterator->current->prev;
- node->next = iterator->current;
-
- if(0 == node->prev)
- iterator->chain->head = node;
- else
- node->prev->next = node;
-
- iterator->current->prev = node;
-
- iterator->chain->nodes++;
-}
-
-static void iterator_insert_node_after_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
-{
- FLAC__ASSERT(0 != node);
- FLAC__ASSERT(0 != node->data);
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->chain);
- FLAC__ASSERT(0 != iterator->chain->head);
- FLAC__ASSERT(0 != iterator->chain->tail);
-
- iterator->current->data->is_last = false;
-
- node->prev = iterator->current;
- node->next = iterator->current->next;
-
- if(0 == node->next)
- iterator->chain->tail = node;
- else
- node->next->prev = node;
-
- node->prev->next = node;
-
- iterator->chain->tail->data->is_last = true;
-
- iterator->chain->nodes++;
-}
-
-/* return true iff node and node->next are both padding */
-static FLAC__bool chain_merge_adjacent_padding_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
-{
- if(node->data->type == FLAC__METADATA_TYPE_PADDING && 0 != node->next && node->next->data->type == FLAC__METADATA_TYPE_PADDING) {
- const unsigned growth = FLAC__STREAM_METADATA_HEADER_LENGTH + node->next->data->length;
- node->data->length += growth; /* new block size can be greater than max metadata block size, but it'll be fixed later in chain_prepare_for_write_() */
-
- chain_delete_node_(chain, node->next);
- return true;
- }
- else
- return false;
-}
-
-/* Returns the new length of the chain, or 0 if there was an error. */
-/* WATCHOUT: This can get called multiple times before a write, so
- * it should still work when this happens.
- */
-/* WATCHOUT: Make sure to also update the logic in
- * FLAC__metadata_chain_check_if_tempfile_needed() if the logic here changes.
- */
-static FLAC__off_t chain_prepare_for_write_(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
-{
- FLAC__off_t current_length = chain_calculate_length_(chain);
-
- if(use_padding) {
- /* if the metadata shrank and the last block is padding, we just extend the last padding block */
- if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- const FLAC__off_t delta = chain->initial_length - current_length;
- chain->tail->data->length += delta;
- current_length += delta;
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
- else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
- FLAC__StreamMetadata *padding;
- FLAC__Metadata_Node *node;
- if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- padding->length = chain->initial_length - (FLAC__STREAM_METADATA_HEADER_LENGTH + current_length);
- if(0 == (node = node_new_())) {
- FLAC__metadata_object_delete(padding);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- node->data = padding;
- chain_append_node_(chain, node);
- current_length = chain_calculate_length_(chain);
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
- else if(current_length > chain->initial_length) {
- const FLAC__off_t delta = current_length - chain->initial_length;
- if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- /* if the delta is exactly the size of the last padding block, remove the padding block */
- if((FLAC__off_t)chain->tail->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
- chain_delete_node_(chain, chain->tail);
- current_length = chain_calculate_length_(chain);
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- /* if there is at least 'delta' bytes of padding, trim the padding down */
- else if((FLAC__off_t)chain->tail->data->length >= delta) {
- chain->tail->data->length -= delta;
- current_length -= delta;
- FLAC__ASSERT(current_length == chain->initial_length);
- }
- }
- }
- }
-
- /* check sizes of all metadata blocks; reduce padding size if necessary */
- {
- FLAC__Metadata_Node *node;
- for (node = chain->head; node; node = node->next) {
- if(node->data->length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) {
- if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
- node->data->length = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
- current_length = chain_calculate_length_(chain);
- } else {
- chain->status = FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
- return 0;
- }
- }
- }
- }
-
- return current_length;
-}
-
-static FLAC__bool chain_read_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Tell tell_cb)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
-
- /* we assume we're already at the beginning of the file */
-
- switch(seek_to_first_metadata_block_cb_(handle, read_cb, seek_cb)) {
- case 0:
- break;
- case 1:
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- case 2:
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- case 3:
- chain->status = FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
- return false;
- default:
- FLAC__ASSERT(0);
- return false;
- }
-
- {
- FLAC__int64 pos = tell_cb(handle);
- if(pos < 0) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
- chain->first_offset = (FLAC__off_t)pos;
- }
-
- {
- FLAC__bool is_last;
- FLAC__MetadataType type;
- unsigned length;
-
- do {
- node = node_new_();
- if(0 == node) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(!read_metadata_block_header_cb_(handle, read_cb, &is_last, &type, &length)) {
- node_delete_(node);
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
-
- node->data = FLAC__metadata_object_new(type);
- if(0 == node->data) {
- node_delete_(node);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- node->data->is_last = is_last;
- node->data->length = length;
-
- chain->status = get_equivalent_status_(read_metadata_block_data_cb_(handle, read_cb, seek_cb, node->data));
- if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
- node_delete_(node);
- return false;
- }
- chain_append_node_(chain, node);
- } while(!is_last);
- }
-
- {
- FLAC__int64 pos = tell_cb(handle);
- if(pos < 0) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- return false;
- }
- chain->last_offset = (FLAC__off_t)pos;
- }
-
- chain->initial_length = chain_calculate_length_(chain);
-
- return true;
-}
-
-static FLAC__StreamDecoderReadStatus chain_read_ogg_read_cb_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- (void)decoder;
- if(*bytes > 0 && chain->status == FLAC__METADATA_CHAIN_STATUS_OK) {
- *bytes = chain->read_cb(buffer, sizeof(FLAC__byte), *bytes, chain->handle);
- if(*bytes == 0)
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- else
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- }
- else
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
-}
-
-static FLAC__StreamDecoderWriteStatus chain_read_ogg_write_cb_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- (void)decoder, (void)frame, (void)buffer, (void)client_data;
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
-}
-
-static void chain_read_ogg_metadata_cb_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- FLAC__Metadata_Node *node;
-
- (void)decoder;
-
- node = node_new_();
- if(0 == node) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return;
- }
-
- node->data = FLAC__metadata_object_clone(metadata);
- if(0 == node->data) {
- node_delete_(node);
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return;
- }
-
- chain_append_node_(chain, node);
-}
-
-static void chain_read_ogg_error_cb_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
- (void)decoder, (void)status;
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
-}
-
-static FLAC__bool chain_read_ogg_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb)
-{
- FLAC__StreamDecoder *decoder;
-
- FLAC__ASSERT(0 != chain);
-
- /* we assume we're already at the beginning of the file */
-
- chain->handle = handle;
- chain->read_cb = read_cb;
- if(0 == (decoder = FLAC__stream_decoder_new())) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- FLAC__stream_decoder_set_metadata_respond_all(decoder);
- if(FLAC__stream_decoder_init_ogg_stream(decoder, chain_read_ogg_read_cb_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, chain_read_ogg_write_cb_, chain_read_ogg_metadata_cb_, chain_read_ogg_error_cb_, chain) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
- FLAC__stream_decoder_delete(decoder);
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
- return false;
- }
-
- chain->first_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
-
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder))
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
- if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
- FLAC__stream_decoder_delete(decoder);
- return false;
- }
-
- FLAC__stream_decoder_delete(decoder);
-
- chain->last_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
-
- chain->initial_length = chain_calculate_length_(chain);
-
- return true;
-}
-
-static FLAC__bool chain_rewrite_metadata_in_place_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, FLAC__IOCallback_Seek seek_cb)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->head);
-
- if(0 != seek_cb(handle, chain->first_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_cb_(handle, write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- if(!write_metadata_block_data_cb_(handle, write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- return true;
-}
-
-static FLAC__bool chain_rewrite_metadata_in_place_(FLAC__Metadata_Chain *chain)
-{
- FILE *file;
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain->filename);
-
- if(0 == (file = flac_fopen(chain->filename, "r+b"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- /* chain_rewrite_metadata_in_place_cb_() sets chain->status for us */
- ret = chain_rewrite_metadata_in_place_cb_(chain, (FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, fseek_wrapper_);
-
- fclose(file);
-
- return ret;
-}
-
-static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix)
-{
- FILE *f, *tempfile = NULL;
- char *tempfilename;
- FLAC__Metadata_SimpleIteratorStatus status;
- const FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- /* copy the file prefix (data up to first metadata block */
- if(0 == (f = flac_fopen(chain->filename, "rb"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
- chain->status = get_equivalent_status_(status);
- goto err;
- }
- if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
- chain->status = get_equivalent_status_(status);
- goto err;
- }
-
- /* write the metadata */
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- goto err;
- }
- if(!write_metadata_block_data_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- goto err;
- }
- }
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- /* copy the file postfix (everything after the metadata) */
- if(0 != fseeko(f, chain->last_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- goto err;
- }
- if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
- chain->status = get_equivalent_status_(status);
- goto err;
- }
-
- /* move the tempfile on top of the original */
- (void)fclose(f);
- if(!transport_tempfile_(chain->filename, &tempfile, &tempfilename, &status))
- return false;
-
- return true;
-
-err:
- (void)fclose(f);
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
-}
-
-/* assumes 'handle' is already at beginning of file */
-static FLAC__bool chain_rewrite_file_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
- const FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 == chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- /* copy the file prefix (data up to first metadata block */
- if(!copy_n_bytes_from_file_cb_(handle, read_cb, temp_handle, temp_write_cb, chain->first_offset, &status)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- /* write the metadata */
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_cb_(temp_handle, temp_write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- if(!write_metadata_block_data_cb_(temp_handle, temp_write_cb, node->data)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- return false;
- }
- }
- /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
-
- /* copy the file postfix (everything after the metadata) */
- if(0 != seek_cb(handle, chain->last_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_cb_(handle, read_cb, eof_cb, temp_handle, temp_write_cb, &status)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- return true;
-}
-
-FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void)
-{
- FLAC__Metadata_Chain *chain = calloc(1, sizeof(FLAC__Metadata_Chain));
-
- if(0 != chain)
- chain_init_(chain);
-
- return chain;
-}
-
-FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != chain);
-
- chain_clear_(chain);
-
- free(chain);
-}
-
-FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_ChainStatus status;
-
- FLAC__ASSERT(0 != chain);
-
- status = chain->status;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- return status;
-}
-
-static FLAC__bool chain_read_(FLAC__Metadata_Chain *chain, const char *filename, FLAC__bool is_ogg)
-{
- FILE *file;
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != filename);
-
- chain_clear_(chain);
-
- if(0 == (chain->filename = strdup(filename))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- chain->is_ogg = is_ogg;
-
- if(0 == (file = flac_fopen(filename, "rb"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- /* the function also sets chain->status for us */
- ret = is_ogg?
- chain_read_ogg_cb_(chain, file, (FLAC__IOCallback_Read)fread) :
- chain_read_cb_(chain, file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, ftell_wrapper_)
- ;
-
- fclose(file);
-
- return ret;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename)
-{
- return chain_read_(chain, filename, /*is_ogg=*/false);
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename)
-{
- return chain_read_(chain, filename, /*is_ogg=*/true);
-}
-
-static FLAC__bool chain_read_with_callbacks_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__bool is_ogg)
-{
- FLAC__bool ret;
-
- FLAC__ASSERT(0 != chain);
-
- chain_clear_(chain);
-
- if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.tell) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- chain->is_ogg = is_ogg;
-
- /* rewind */
- if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- /* the function also sets chain->status for us */
- ret = is_ogg?
- chain_read_ogg_cb_(chain, handle, callbacks.read) :
- chain_read_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.tell)
- ;
-
- return ret;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/false);
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/true);
-}
-
-typedef enum {
- LBS_NONE = 0,
- LBS_SIZE_CHANGED,
- LBS_BLOCK_ADDED,
- LBS_BLOCK_REMOVED
-} LastBlockState;
-
-FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
-{
- /* This does all the same checks that are in chain_prepare_for_write_()
- * but doesn't actually alter the chain. Make sure to update the logic
- * here if chain_prepare_for_write_() changes.
- */
- FLAC__off_t current_length;
- LastBlockState lbs_state = LBS_NONE;
- unsigned lbs_size = 0;
-
- FLAC__ASSERT(0 != chain);
-
- current_length = chain_calculate_length_(chain);
-
- if(use_padding) {
- const FLAC__Metadata_Node * const node = chain->tail;
- /* if the metadata shrank and the last block is padding, we just extend the last padding block */
- if(current_length < chain->initial_length && node->data->type == FLAC__METADATA_TYPE_PADDING) {
- lbs_state = LBS_SIZE_CHANGED;
- lbs_size = node->data->length + (chain->initial_length - current_length);
- }
- /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
- else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
- lbs_state = LBS_BLOCK_ADDED;
- lbs_size = chain->initial_length - (current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
- }
- /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
- else if(current_length > chain->initial_length) {
- const FLAC__off_t delta = current_length - chain->initial_length;
- if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
- /* if the delta is exactly the size of the last padding block, remove the padding block */
- if((FLAC__off_t)node->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
- lbs_state = LBS_BLOCK_REMOVED;
- lbs_size = 0;
- }
- /* if there is at least 'delta' bytes of padding, trim the padding down */
- else if((FLAC__off_t)node->data->length >= delta) {
- lbs_state = LBS_SIZE_CHANGED;
- lbs_size = node->data->length - delta;
- }
- }
- }
- }
-
- current_length = 0;
- /* check sizes of all metadata blocks; reduce padding size if necessary */
- {
- const FLAC__Metadata_Node *node;
- for(node = chain->head; node; node = node->next) {
- unsigned block_len = node->data->length;
- if(node == chain->tail) {
- if(lbs_state == LBS_BLOCK_REMOVED)
- continue;
- else if(lbs_state == LBS_SIZE_CHANGED)
- block_len = lbs_size;
- }
- if(block_len >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) {
- if(node->data->type == FLAC__METADATA_TYPE_PADDING)
- block_len = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
- else
- return false /* the return value doesn't matter */;
- }
- current_length += (FLAC__STREAM_METADATA_HEADER_LENGTH + block_len);
- }
-
- if(lbs_state == LBS_BLOCK_ADDED) {
- /* test added padding block */
- unsigned block_len = lbs_size;
- if(block_len >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
- block_len = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
- current_length += (FLAC__STREAM_METADATA_HEADER_LENGTH + block_len);
- }
- }
-
- return (current_length != chain->initial_length);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats)
-{
- struct flac_stat_s stats;
- const char *tempfile_path_prefix = 0;
- FLAC__off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 == chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- if(preserve_file_stats)
- get_file_stats_(chain->filename, &stats);
-
- if(current_length == chain->initial_length) {
- if(!chain_rewrite_metadata_in_place_(chain))
- return false;
- }
- else {
- if(!chain_rewrite_file_(chain, tempfile_path_prefix))
- return false;
-
- /* recompute lengths and offsets */
- {
- const FLAC__Metadata_Node *node;
- chain->initial_length = current_length;
- chain->last_offset = chain->first_offset;
- for(node = chain->head; node; node = node->next)
- chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- }
- }
-
- if(preserve_file_stats)
- set_file_stats_(chain->filename, &stats);
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
-{
- FLAC__off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 != chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- if (0 == callbacks.write || 0 == callbacks.seek) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- if (FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- FLAC__ASSERT(current_length == chain->initial_length);
-
- return chain_rewrite_metadata_in_place_cb_(chain, handle, callbacks.write, callbacks.seek);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks)
-{
- FLAC__off_t current_length;
-
- FLAC__ASSERT(0 != chain);
-
- if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
- chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- return false;
- }
-
- if (0 != chain->filename) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
- return false;
- }
-
- if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.eof) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
- if (0 == temp_callbacks.write) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
- return false;
- }
-
- if (!FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
- return false;
- }
-
- current_length = chain_prepare_for_write_(chain, use_padding);
-
- /* a return value of 0 means there was an error; chain->status is already set */
- if (0 == current_length)
- return false;
-
- FLAC__ASSERT(current_length != chain->initial_length);
-
- /* rewind */
- if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- if(!chain_rewrite_file_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.eof, temp_handle, temp_callbacks.write))
- return false;
-
- /* recompute lengths and offsets */
- {
- const FLAC__Metadata_Node *node;
- chain->initial_length = current_length;
- chain->last_offset = chain->first_offset;
- for(node = chain->head; node; node = node->next)
- chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- }
-
- return true;
-}
-
-FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
-
- for(node = chain->head; node; ) {
- if(!chain_merge_adjacent_padding_(chain, node))
- node = node->next;
- }
-}
-
-FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *save;
- unsigned i;
-
- FLAC__ASSERT(0 != chain);
-
- /*
- * Don't try and be too smart... this simple algo is good enough for
- * the small number of nodes that we deal with.
- */
- for(i = 0, node = chain->head; i < chain->nodes; i++) {
- if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
- save = node->next;
- chain_remove_node_(chain, node);
- chain_append_node_(chain, node);
- node = save;
- }
- else {
- node = node->next;
- }
- }
-
- FLAC__metadata_chain_merge_padding(chain);
-}
-
-
-FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void)
-{
- FLAC__Metadata_Iterator *iterator = calloc(1, sizeof(FLAC__Metadata_Iterator));
-
- /* calloc() implies:
- iterator->current = 0;
- iterator->chain = 0;
- */
-
- return iterator;
-}
-
-FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- free(iterator);
-}
-
-FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->head);
-
- iterator->chain = chain;
- iterator->current = chain->head;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 == iterator->current || 0 == iterator->current->next)
- return false;
-
- iterator->current = iterator->current->next;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
-
- if(0 == iterator->current || 0 == iterator->current->prev)
- return false;
-
- iterator->current = iterator->current->prev;
- return true;
-}
-
-FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != iterator->current->data);
-
- return iterator->current->data->type;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
-
- return iterator->current->data;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != block);
- return FLAC__metadata_iterator_delete_block(iterator, false) && FLAC__metadata_iterator_insert_block_after(iterator, block);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding)
-{
- FLAC__Metadata_Node *save;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
-
- if(0 == iterator->current->prev) {
- FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
- return false;
- }
-
- save = iterator->current->prev;
-
- if(replace_with_padding) {
- FLAC__metadata_object_delete_data(iterator->current->data);
- iterator->current->data->type = FLAC__METADATA_TYPE_PADDING;
- }
- else {
- chain_delete_node_(iterator->chain, iterator->current);
- }
-
- iterator->current = save;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != block);
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
- return false;
-
- if(0 == iterator->current->prev) {
- FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
- return false;
- }
-
- if(0 == (node = node_new_()))
- return false;
-
- node->data = block;
- iterator_insert_node_(iterator, node);
- iterator->current = node;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->current);
- FLAC__ASSERT(0 != block);
-
- if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
- return false;
-
- if(0 == (node = node_new_()))
- return false;
-
- node->data = block;
- iterator_insert_node_after_(iterator, node);
- iterator->current = node;
- return true;
-}
-
-
-/****************************************************************************
- *
- * Local function definitions
- *
- ***************************************************************************/
-
-void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++) {
- *(--b) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- for(i = 0; i < bytes; i++) {
- *(b++) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, unsigned bytes)
-{
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++) {
- *(--b) = (FLAC__byte)(val & 0xff);
- val >>= 8;
- }
-}
-
-FLAC__uint32 unpack_uint32_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint32 ret = 0;
- unsigned i;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint32)(*b++);
-
- return ret;
-}
-
-FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint32 ret = 0;
- unsigned i;
-
- b += bytes;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint32)(*--b);
-
- return ret;
-}
-
-FLAC__uint64 unpack_uint64_(FLAC__byte *b, unsigned bytes)
-{
- FLAC__uint64 ret = 0;
- unsigned i;
-
- for(i = 0; i < bytes; i++)
- ret = (ret << 8) | (FLAC__uint64)(*b++);
-
- return ret;
-}
-
-FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- if(!read_metadata_block_header_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, &iterator->is_last, &iterator->type, &iterator->length)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
- iterator->status = read_metadata_block_data_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, block);
-
- return (iterator->status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
-}
-
-FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length)
-{
- FLAC__byte raw_header[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
- if(read_cb(raw_header, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
- return false;
-
- *is_last = raw_header[0] & 0x80? true : false;
- *type = (FLAC__MetadataType)(raw_header[0] & 0x7f);
- *length = unpack_uint32_(raw_header + 1, 3);
-
- /* Note that we don't check:
- * if(iterator->type >= FLAC__METADATA_TYPE_UNDEFINED)
- * we just will read in an opaque block
- */
-
- return true;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block)
-{
- switch(block->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return read_metadata_block_data_streaminfo_cb_(handle, read_cb, &block->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return read_metadata_block_data_padding_cb_(handle, seek_cb, &block->data.padding, block->length);
- case FLAC__METADATA_TYPE_APPLICATION:
- return read_metadata_block_data_application_cb_(handle, read_cb, &block->data.application, block->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return read_metadata_block_data_seektable_cb_(handle, read_cb, &block->data.seek_table, block->length);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return read_metadata_block_data_vorbis_comment_cb_(handle, read_cb, seek_cb, &block->data.vorbis_comment, block->length);
- case FLAC__METADATA_TYPE_CUESHEET:
- return read_metadata_block_data_cuesheet_cb_(handle, read_cb, &block->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return read_metadata_block_data_picture_cb_(handle, read_cb, &block->data.picture);
- default:
- return read_metadata_block_data_unknown_cb_(handle, read_cb, &block->data.unknown, block->length);
- }
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH], *b;
-
- if(read_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- b = buffer;
-
- /* we are using hardcoded numbers for simplicity but we should
- * probably eventually write a bit-level unpacker and use the
- * _STREAMINFO_ constants.
- */
- block->min_blocksize = unpack_uint32_(b, 2); b += 2;
- block->max_blocksize = unpack_uint32_(b, 2); b += 2;
- block->min_framesize = unpack_uint32_(b, 3); b += 3;
- block->max_framesize = unpack_uint32_(b, 3); b += 3;
- block->sample_rate = (unpack_uint32_(b, 2) << 4) | ((unsigned)(b[2] & 0xf0) >> 4);
- block->channels = (unsigned)((b[2] & 0x0e) >> 1) + 1;
- block->bits_per_sample = ((((unsigned)(b[2] & 0x01)) << 4) | (((unsigned)(b[3] & 0xf0)) >> 4)) + 1;
- block->total_samples = (((FLAC__uint64)(b[3] & 0x0f)) << 32) | unpack_uint64_(b+4, 4);
- memcpy(block->md5sum, b+8, 16);
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length)
-{
- (void)block; /* nothing to do; we don't care about reading the padding bytes */
-
- if(0 != seek_cb(handle, block_length, SEEK_CUR))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- if(read_cb(block->id, 1, id_bytes, handle) != id_bytes)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- if(block_length < id_bytes)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- block_length -= id_bytes;
-
- if(block_length == 0) {
- block->data = 0;
- }
- else {
- if(0 == (block->data = malloc(block_length)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(block->data, 1, block_length, handle) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length)
-{
- unsigned i;
- FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
-
- FLAC__ASSERT(block_length % FLAC__STREAM_METADATA_SEEKPOINT_LENGTH == 0);
-
- block->num_points = block_length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-
- if(block->num_points == 0)
- block->points = 0;
- else if(0 == (block->points = safe_malloc_mul_2op_p(block->num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < block->num_points; i++) {
- if(read_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- /* some MAGIC NUMBERs here */
- block->points[i].sample_number = unpack_uint64_(buffer, 8);
- block->points[i].stream_offset = unpack_uint64_(buffer+8, 8);
- block->points[i].frame_samples = unpack_uint32_(buffer+16, 2);
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry, unsigned max_length)
-{
- const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8 == sizeof(buffer));
-
- if(max_length < entry_length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
-
- max_length -= entry_length_len;
- if(read_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- entry->length = unpack_uint32_little_endian_(buffer, entry_length_len);
- if(max_length < entry->length) {
- entry->length = 0;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
- } else max_length -= entry->length;
-
- if(0 != entry->entry)
- free(entry->entry);
-
- if(entry->length == 0) {
- entry->entry = 0;
- }
- else {
- if(0 == (entry->entry = safe_malloc_add_2op_(entry->length, /*+*/1)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(entry->entry, 1, entry->length, handle) != entry->length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- entry->entry[entry->length] = '\0';
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_VorbisComment *block, unsigned block_length)
-{
- unsigned i;
- FLAC__Metadata_SimpleIteratorStatus status;
- const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8 == sizeof(buffer));
-
- status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, &(block->vendor_string), block_length);
- if(block_length >= 4)
- block_length -= 4;
- if(status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA)
- goto skip;
- else if(status != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
- block_length -= block->vendor_string.length;
-
- if(block_length < num_comments_len) goto skip; else block_length -= num_comments_len;
- if(read_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->num_comments = unpack_uint32_little_endian_(buffer, num_comments_len);
-
- if(block->num_comments == 0) {
- block->comments = 0;
- }
- else if(0 == (block->comments = calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
- block->num_comments = 0;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- }
-
- for(i = 0; i < block->num_comments; i++) {
- status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, block->comments + i, block_length);
- if(block_length >= 4) block_length -= 4;
- if(status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA) {
- block->num_comments = i;
- goto skip;
- }
- else if(status != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK) return status;
- block_length -= block->comments[i].length;
- }
-
- skip:
- if(block_length > 0) {
- /* bad metadata */
- if(0 != seek_cb(handle, block_length, SEEK_CUR))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track)
-{
- unsigned i, len;
- FLAC__byte buffer[32]; /* asserted below that this is big enough */
-
- FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->offset = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->number = (FLAC__byte)unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(read_cb(track->isrc, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN == 1);
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN == 1);
- track->type = buffer[0] >> 7;
- track->pre_emphasis = (buffer[0] >> 6) & 1;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->num_indices = (FLAC__byte)unpack_uint32_(buffer, len);
-
- if(track->num_indices == 0) {
- track->indices = 0;
- }
- else if(0 == (track->indices = calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < track->num_indices; i++) {
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->indices[i].offset = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- track->indices[i].number = (FLAC__byte)unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block)
-{
- unsigned i, len;
- FLAC__Metadata_SimpleIteratorStatus status;
- FLAC__byte buffer[1024]; /* MSVC needs a constant expression so we put a magic number and assert */
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN)/8 <= sizeof(buffer));
- FLAC__ASSERT(sizeof(FLAC__uint64) <= sizeof(buffer));
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(read_cb(block->media_catalog_number, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->lead_in = unpack_uint64_(buffer, len);
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->is_cd = buffer[0]&0x80? true : false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->num_tracks = unpack_uint32_(buffer, len);
-
- if(block->num_tracks == 0) {
- block->tracks = 0;
- }
- else if(0 == (block->tracks = calloc(block->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track))))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- for(i = 0; i < block->num_tracks; i++) {
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_cuesheet_track_cb_(handle, read_cb, block->tracks + i)))
- return status;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cstring_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__byte **data, FLAC__uint32 *length, FLAC__uint32 length_len)
-{
- FLAC__byte buffer[sizeof(FLAC__uint32)];
-
- FLAC__ASSERT(0 != data);
- FLAC__ASSERT(length_len%8 == 0);
-
- length_len /= 8; /* convert to bytes */
-
- FLAC__ASSERT(sizeof(buffer) >= length_len);
-
- if(read_cb(buffer, 1, length_len, handle) != length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- *length = unpack_uint32_(buffer, length_len);
-
- if(0 != *data)
- free(*data);
-
- if(0 == (*data = safe_malloc_add_2op_(*length, /*+*/1)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(*length > 0) {
- if(read_cb(*data, 1, *length, handle) != *length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- (*data)[*length] = '\0';
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block)
-{
- FLAC__Metadata_SimpleIteratorStatus status;
- FLAC__byte buffer[4]; /* asserted below that this is big enough */
- FLAC__uint32 len;
-
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_TYPE_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->type = (FLAC__StreamMetadata_Picture_Type)unpack_uint32_(buffer, len);
-
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, (FLAC__byte**)(&(block->mime_type)), &len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->description), &len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->width = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->height = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->depth = unpack_uint32_(buffer, len);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_COLORS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN / 8;
- if(read_cb(buffer, 1, len, handle) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- block->colors = unpack_uint32_(buffer, len);
-
- /* for convenience we use read_metadata_block_data_picture_cstring_cb_() even though it adds an extra terminating NUL we don't use */
- if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->data), &(block->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
- return status;
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length)
-{
- if(block_length == 0) {
- block->data = 0;
- }
- else {
- if(0 == (block->data = malloc(block_length)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- if(read_cb(block->data, 1, block_length, handle) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- }
-
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
-}
-
-FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != status);
-
- if(!write_metadata_block_header_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != status);
-
- if (write_metadata_block_data_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
- return true;
- }
- else {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
-}
-
-FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
- FLAC__ASSERT(block->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
- /* double protection */
- if(block->length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
- return false;
-
- buffer[0] = (block->is_last? 0x80 : 0) | (FLAC__byte)block->type;
- pack_uint32_(block->length, buffer + 1, 3);
-
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != block);
-
- switch(block->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return write_metadata_block_data_streaminfo_cb_(handle, write_cb, &block->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return write_metadata_block_data_padding_cb_(handle, write_cb, &block->data.padding, block->length);
- case FLAC__METADATA_TYPE_APPLICATION:
- return write_metadata_block_data_application_cb_(handle, write_cb, &block->data.application, block->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return write_metadata_block_data_seektable_cb_(handle, write_cb, &block->data.seek_table);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return write_metadata_block_data_vorbis_comment_cb_(handle, write_cb, &block->data.vorbis_comment);
- case FLAC__METADATA_TYPE_CUESHEET:
- return write_metadata_block_data_cuesheet_cb_(handle, write_cb, &block->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return write_metadata_block_data_picture_cb_(handle, write_cb, &block->data.picture);
- default:
- return write_metadata_block_data_unknown_cb_(handle, write_cb, &block->data.unknown, block->length);
- }
-}
-
-FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block)
-{
- FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH];
- const unsigned channels1 = block->channels - 1;
- const unsigned bps1 = block->bits_per_sample - 1;
-
- /* we are using hardcoded numbers for simplicity but we should
- * probably eventually write a bit-level packer and use the
- * _STREAMINFO_ constants.
- */
- pack_uint32_(block->min_blocksize, buffer, 2);
- pack_uint32_(block->max_blocksize, buffer+2, 2);
- pack_uint32_(block->min_framesize, buffer+4, 3);
- pack_uint32_(block->max_framesize, buffer+7, 3);
- buffer[10] = (block->sample_rate >> 12) & 0xff;
- buffer[11] = (block->sample_rate >> 4) & 0xff;
- buffer[12] = ((block->sample_rate & 0x0f) << 4) | (channels1 << 1) | (bps1 >> 4);
- buffer[13] = (FLAC__byte)(((bps1 & 0x0f) << 4) | ((block->total_samples >> 32) & 0x0f));
- pack_uint32_((FLAC__uint32)block->total_samples, buffer+14, 4);
- memcpy(buffer+18, block->md5sum, 16);
-
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length)
-{
- unsigned i, n = block_length;
- FLAC__byte buffer[1024];
-
- (void)block;
-
- memset(buffer, 0, 1024);
-
- for(i = 0; i < n/1024; i++)
- if(write_cb(buffer, 1, 1024, handle) != 1024)
- return false;
-
- n %= 1024;
-
- if(write_cb(buffer, 1, n, handle) != n)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length)
-{
- const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
-
- if(write_cb(block->id, 1, id_bytes, handle) != id_bytes)
- return false;
-
- block_length -= id_bytes;
-
- if(write_cb(block->data, 1, block_length, handle) != block_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block)
-{
- unsigned i;
- FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
-
- for(i = 0; i < block->num_points; i++) {
- /* some MAGIC NUMBERs here */
- pack_uint64_(block->points[i].sample_number, buffer, 8);
- pack_uint64_(block->points[i].stream_offset, buffer+8, 8);
- pack_uint32_(block->points[i].frame_samples, buffer+16, 2);
- if(write_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block)
-{
- unsigned i;
- const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
- const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(flac_max(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN, FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8 == sizeof(buffer));
-
- pack_uint32_little_endian_(block->vendor_string.length, buffer, entry_length_len);
- if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return false;
- if(write_cb(block->vendor_string.entry, 1, block->vendor_string.length, handle) != block->vendor_string.length)
- return false;
-
- pack_uint32_little_endian_(block->num_comments, buffer, num_comments_len);
- if(write_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
- return false;
-
- for(i = 0; i < block->num_comments; i++) {
- pack_uint32_little_endian_(block->comments[i].length, buffer, entry_length_len);
- if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
- return false;
- if(write_cb(block->comments[i].entry, 1, block->comments[i].length, handle) != block->comments[i].length)
- return false;
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block)
-{
- unsigned i, j, len;
- FLAC__byte buffer[1024]; /* asserted below that this is big enough */
-
- FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN)/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(write_cb(block->media_catalog_number, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
- pack_uint64_(block->lead_in, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
- memset(buffer, 0, len);
- if(block->is_cd)
- buffer[0] |= 0x80;
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
- pack_uint32_(block->num_tracks, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- for(i = 0; i < block->num_tracks; i++) {
- FLAC__StreamMetadata_CueSheet_Track *track = block->tracks + i;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
- pack_uint64_(track->offset, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
- pack_uint32_(track->number, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(write_cb(track->isrc, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
- len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
- memset(buffer, 0, len);
- buffer[0] = (track->type << 7) | (track->pre_emphasis << 6);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
- pack_uint32_(track->num_indices, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- for(j = 0; j < track->num_indices; j++) {
- FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + j;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
- pack_uint64_(indx->offset, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
- pack_uint32_(indx->number, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
- len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
- memset(buffer, 0, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block)
-{
- unsigned len;
- size_t slen;
- FLAC__byte buffer[4]; /* magic number is asserted below */
-
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_TYPE_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_COLORS_LEN%8);
- FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN%8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
- FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8);
-
- len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8;
- pack_uint32_(block->type, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8;
- slen = strlen(block->mime_type);
- pack_uint32_(slen, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->mime_type, 1, slen, handle) != slen)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8;
- slen = strlen((const char *)block->description);
- pack_uint32_(slen, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->description, 1, slen, handle) != slen)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8;
- pack_uint32_(block->width, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8;
- pack_uint32_(block->height, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8;
- pack_uint32_(block->depth, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8;
- pack_uint32_(block->colors, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
-
- len = FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8;
- pack_uint32_(block->data_length, buffer, len);
- if(write_cb(buffer, 1, len, handle) != len)
- return false;
- if(write_cb(block->data, 1, block->data_length, handle) != block->data_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length)
-{
- if(write_cb(block->data, 1, block_length, handle) != block_length)
- return false;
-
- return true;
-}
-
-FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block)
-{
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
- return false;
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
- return false;
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, unsigned padding_length, FLAC__bool padding_is_last)
-{
- FLAC__StreamMetadata *padding;
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- block->is_last = false;
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
- return false;
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
- return false;
-
- if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)))
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
-
- padding->is_last = padding_is_last;
- padding->length = padding_length;
-
- if(!write_metadata_block_header_(iterator->file, &iterator->status, padding)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
-
- if(!write_metadata_block_data_(iterator->file, &iterator->status, padding)) {
- FLAC__metadata_object_delete(padding);
- return false;
- }
-
- FLAC__metadata_object_delete(padding);
-
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append)
-{
- FILE *tempfile = NULL;
- char *tempfilename = NULL;
- int fixup_is_last_code = 0; /* 0 => no need to change any is_last flags */
- FLAC__off_t fixup_is_last_flag_offset = -1;
-
- FLAC__ASSERT(0 != block || append == false);
-
- if(iterator->is_last) {
- if(append) {
- fixup_is_last_code = 1; /* 1 => clear the is_last flag at the following offset */
- fixup_is_last_flag_offset = iterator->offset[iterator->depth];
- }
- else if(0 == block) {
- simple_iterator_push_(iterator);
- if(!FLAC__metadata_simple_iterator_prev(iterator)) {
- (void)simple_iterator_pop_(iterator);
- return false;
- }
- fixup_is_last_code = -1; /* -1 => set the is_last the flag at the following offset */
- fixup_is_last_flag_offset = iterator->offset[iterator->depth];
- if(!simple_iterator_pop_(iterator))
- return false;
- }
- }
-
- if(!simple_iterator_copy_file_prefix_(iterator, &tempfile, &tempfilename, append))
- return false;
-
- if(0 != block) {
- if(!write_metadata_block_header_(tempfile, &iterator->status, block)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
-
- if(!write_metadata_block_data_(tempfile, &iterator->status, block)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
- }
-
- if(!simple_iterator_copy_file_postfix_(iterator, &tempfile, &tempfilename, fixup_is_last_code, fixup_is_last_flag_offset, block==0))
- return false;
-
- if(append)
- return FLAC__metadata_simple_iterator_next(iterator);
-
- return true;
-}
-
-void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(iterator->depth+1 < SIMPLE_ITERATOR_MAX_PUSH_DEPTH);
- iterator->offset[iterator->depth+1] = iterator->offset[iterator->depth];
- iterator->depth++;
-}
-
-FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator)
-{
- FLAC__ASSERT(iterator->depth > 0);
- iterator->depth--;
- if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
-
- return read_metadata_block_header_(iterator);
-}
-
-/* return meanings:
- * 0: ok
- * 1: read error
- * 2: seek error
- * 3: not a FLAC file
- */
-unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb)
-{
- FLAC__byte buffer[4];
- size_t n;
- unsigned i;
-
- FLAC__ASSERT(FLAC__STREAM_SYNC_LENGTH == sizeof(buffer));
-
- /* skip any id3v2 tag */
- errno = 0;
- n = read_cb(buffer, 1, 4, handle);
- if(errno)
- return 1;
- else if(n != 4)
- return 3;
- else if(0 == memcmp(buffer, "ID3", 3)) {
- unsigned tag_length = 0;
-
- /* skip to the tag length */
- if(seek_cb(handle, 2, SEEK_CUR) < 0)
- return 2;
-
- /* read the length */
- for(i = 0; i < 4; i++) {
- if(read_cb(buffer, 1, 1, handle) < 1 || buffer[0] & 0x80)
- return 1;
- tag_length <<= 7;
- tag_length |= (buffer[0] & 0x7f);
- }
-
- /* skip the rest of the tag */
- if(seek_cb(handle, tag_length, SEEK_CUR) < 0)
- return 2;
-
- /* read the stream sync code */
- errno = 0;
- n = read_cb(buffer, 1, 4, handle);
- if(errno)
- return 1;
- else if(n != 4)
- return 3;
- }
-
- /* check for the fLaC signature */
- if(0 == memcmp(FLAC__STREAM_SYNC_STRING, buffer, FLAC__STREAM_SYNC_LENGTH))
- return 0;
- else
- return 3;
-}
-
-unsigned seek_to_first_metadata_block_(FILE *f)
-{
- return seek_to_first_metadata_block_cb_((FLAC__IOHandle)f, (FLAC__IOCallback_Read)fread, fseek_wrapper_);
-}
-
-FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append)
-{
- const FLAC__off_t offset_end = append? iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length : iterator->offset[iterator->depth];
-
- if(0 != fseeko(iterator->file, 0, SEEK_SET)) {
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(!open_tempfile_(iterator->filename, iterator->tempfile_path_prefix, tempfile, tempfilename, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
- if(!copy_n_bytes_from_file_(iterator->file, *tempfile, offset_end, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
-
- return true;
-}
-
-FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup)
-{
- FLAC__off_t save_offset = iterator->offset[iterator->depth];
- FLAC__ASSERT(0 != *tempfile);
-
- if(0 != fseeko(iterator->file, save_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_(iterator->file, *tempfile, &iterator->status)) {
- cleanup_tempfile_(tempfile, tempfilename);
- return false;
- }
-
- if(fixup_is_last_code != 0) {
- /*
- * if code == 1, it means a block was appended to the end so
- * we have to clear the is_last flag of the previous block
- * if code == -1, it means the last block was deleted so
- * we have to set the is_last flag of the previous block
- */
- /* MAGIC NUMBERs here; we know the is_last flag is the high bit of the byte at this location */
- FLAC__byte x;
- if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(fread(&x, 1, 1, *tempfile) != 1) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(fixup_is_last_code > 0) {
- FLAC__ASSERT(x & 0x80);
- x &= 0x7f;
- }
- else {
- FLAC__ASSERT(!(x & 0x80));
- x |= 0x80;
- }
- if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
- return false;
- }
- if(local__fwrite(&x, 1, 1, *tempfile) != 1) {
- cleanup_tempfile_(tempfile, tempfilename);
- iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- (void)fclose(iterator->file);
-
- if(!transport_tempfile_(iterator->filename, tempfile, tempfilename, &iterator->status))
- return false;
-
- if(iterator->has_stats)
- set_file_stats_(iterator->filename, &iterator->stats);
-
- if(!simple_iterator_prime_input_(iterator, !iterator->is_writable))
- return false;
- if(backup) {
- while(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length < save_offset)
- if(!FLAC__metadata_simple_iterator_next(iterator))
- return false;
- return true;
- }
- else {
- /* move the iterator to it's original block faster by faking a push, then doing a pop_ */
- FLAC__ASSERT(iterator->depth == 0);
- iterator->offset[0] = save_offset;
- iterator->depth++;
- return simple_iterator_pop_(iterator);
- }
-}
-
-FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- FLAC__ASSERT(bytes >= 0);
- while(bytes > 0) {
- n = flac_min(sizeof(buffer), (size_t)bytes);
- if(fread(buffer, 1, n, file) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(local__fwrite(buffer, 1, n, tempfile) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- bytes -= n;
- }
-
- return true;
-}
-
-FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- FLAC__ASSERT(bytes >= 0);
- while(bytes > 0) {
- n = flac_min(sizeof(buffer), (size_t)bytes);
- if(read_cb(buffer, 1, n, handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(temp_write_cb(buffer, 1, n, temp_handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- bytes -= n;
- }
-
- return true;
-}
-
-FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- while(!feof(file)) {
- n = fread(buffer, 1, sizeof(buffer), file);
- if(n == 0 && !feof(file)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(n > 0 && local__fwrite(buffer, 1, n, tempfile) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- return true;
-}
-
-FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__byte buffer[8192];
- size_t n;
-
- while(!eof_cb(handle)) {
- n = read_cb(buffer, 1, sizeof(buffer), handle);
- if(n == 0 && !eof_cb(handle)) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- return false;
- }
- if(n > 0 && temp_write_cb(buffer, 1, n, temp_handle) != n) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- return false;
- }
- }
-
- return true;
-}
-
-static int
-local_snprintf(char *str, size_t size, const char *fmt, ...)
-{
- va_list va;
- int rc;
-
-#if defined _MSC_VER
- if (size == 0)
- return 1024;
-#endif
-
- va_start (va, fmt);
-
-#if defined _MSC_VER
- rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
- if (rc < 0)
- rc = size - 1;
-#elif defined __MINGW32__
- rc = __mingw_vsnprintf (str, size, fmt, va);
-#else
- rc = vsnprintf (str, size, fmt, va);
-#endif
- va_end (va);
-
- return rc;
-}
-
-FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- static const char *tempfile_suffix = ".metadata_edit";
- if(0 == tempfile_path_prefix) {
- size_t dest_len = strlen(filename) + strlen(tempfile_suffix) + 1;
- if(0 == (*tempfilename = safe_malloc_(dest_len))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- local_snprintf(*tempfilename, dest_len, "%s%s", filename, tempfile_suffix);
- }
- else {
- const char *p = strrchr(filename, '/');
- size_t dest_len;
- if(0 == p)
- p = filename;
- else
- p++;
-
- dest_len = strlen(tempfile_path_prefix) + strlen(p) + strlen(tempfile_suffix) + 2;
-
- if(0 == (*tempfilename = safe_malloc_(dest_len))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- local_snprintf(*tempfilename, dest_len, "%s/%s%s", tempfile_path_prefix, p, tempfile_suffix);
- }
-
- if(0 == (*tempfile = flac_fopen(*tempfilename, "w+b"))) {
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != tempfile);
- FLAC__ASSERT(0 != *tempfile);
- FLAC__ASSERT(0 != tempfilename);
- FLAC__ASSERT(0 != *tempfilename);
- FLAC__ASSERT(0 != status);
-
- (void)fclose(*tempfile);
- *tempfile = 0;
-
-#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__
- /* on some flavors of windows, flac_rename() will fail if the destination already exists */
- if(flac_unlink(filename) < 0) {
- cleanup_tempfile_(tempfile, tempfilename);
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR;
- return false;
- }
-#endif
-
- /*@@@ to fully support the tempfile_path_prefix we need to update this piece to actually copy across filesystems instead of just flac_rename(): */
- if(0 != flac_rename(*tempfilename, filename)) {
- cleanup_tempfile_(tempfile, tempfilename);
- *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR;
- return false;
- }
-
- cleanup_tempfile_(tempfile, tempfilename);
-
- return true;
-}
-
-void cleanup_tempfile_(FILE **tempfile, char **tempfilename)
-{
- if(0 != *tempfile) {
- (void)fclose(*tempfile);
- *tempfile = 0;
- }
-
- if(0 != *tempfilename) {
- (void)flac_unlink(*tempfilename);
- free(*tempfilename);
- *tempfilename = 0;
- }
-}
-
-FLAC__bool get_file_stats_(const char *filename, struct flac_stat_s *stats)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
- return (0 == flac_stat(filename, stats));
-}
-
-void set_file_stats_(const char *filename, struct flac_stat_s *stats)
-{
- struct utimbuf srctime;
-
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
-
- srctime.actime = stats->st_atime;
- srctime.modtime = stats->st_mtime;
- (void)flac_chmod(filename, stats->st_mode);
-#if !defined _3DS
- (void)flac_utime(filename, &srctime);
-#endif
-
-#if !defined _MSC_VER && !defined __BORLANDC__ && !defined __MINGW32__
- FLAC_CHECK_RETURN(chown(filename, stats->st_uid, -1));
- FLAC_CHECK_RETURN(chown(filename, -1, stats->st_gid));
-#endif
-}
-
-int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence)
-{
- return fseeko((FILE*)handle, (FLAC__off_t)offset, whence);
-}
-
-FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle)
-{
- return ftello((FILE*)handle);
-}
-
-FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status)
-{
- switch(status) {
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK:
- return FLAC__METADATA_CHAIN_STATUS_OK;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT:
- return FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE:
- return FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE:
- return FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE:
- return FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA:
- return FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR:
- return FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR:
- default:
- return FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
- }
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "private/metadata.h"
-#include "private/memory.h"
-
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-#include "share/compat.h"
-
-/* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */
-#define safe_malloc_mul_2op_ safe_malloc_mul_2op_p
-
-
-/****************************************************************************
- *
- * Local routines
- *
- ***************************************************************************/
-
-/* copy bytes:
- * from = NULL && bytes = 0
- * to <- NULL
- * from != NULL && bytes > 0
- * to <- copy of from
- * else ASSERT
- * malloc error leaves 'to' unchanged
- */
-static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes)
-{
- FLAC__ASSERT(to != NULL);
- if (bytes > 0 && from != NULL) {
- FLAC__byte *x;
- if ((x = safe_malloc_(bytes)) == NULL)
- return false;
- memcpy(x, from, bytes);
- *to = x;
- }
- else {
- *to = 0;
- }
- return true;
-}
-
-#if 0 /* UNUSED */
-/* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */
-static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes)
-{
- FLAC__byte *copy;
- FLAC__ASSERT(to != NULL);
- if (copy_bytes_(©, from, bytes)) {
- free(*to);
- *to = copy;
- return true;
- }
- else
- return false;
-}
-#endif
-
-/* reallocate entry to 1 byte larger and add a terminating NUL */
-/* realloc() failure leaves entry unchanged */
-static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length)
-{
- FLAC__byte *x = safe_realloc_add_2op_(*entry, length, /*+*/1);
- if (x != NULL) {
- x[length] = '\0';
- *entry = x;
- return true;
- }
- else
- return false;
-}
-
-/* copies the NUL-terminated C-string 'from' to '*to', leaving '*to'
- * unchanged if malloc fails, free()ing the original '*to' if it
- * succeeds and the original '*to' was not NULL
- */
-static FLAC__bool copy_cstring_(char **to, const char *from)
-{
- char *copy = strdup(from);
- FLAC__ASSERT(to != NULL);
- if (copy) {
- free(*to);
- *to = copy;
- return true;
- }
- else
- return false;
-}
-
-static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from)
-{
- to->length = from->length;
- if (from->entry == 0) {
- FLAC__ASSERT(from->length == 0);
- to->entry = 0;
- }
- else {
- FLAC__byte *x;
- FLAC__ASSERT(from->length > 0);
- if ((x = safe_malloc_add_2op_(from->length, /*+*/1)) == NULL)
- return false;
- memcpy(x, from->entry, from->length);
- x[from->length] = '\0';
- to->entry = x;
- }
- return true;
-}
-
-static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from)
-{
- memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track));
- if (from->indices == 0) {
- FLAC__ASSERT(from->num_indices == 0);
- }
- else {
- FLAC__StreamMetadata_CueSheet_Index *x;
- FLAC__ASSERT(from->num_indices > 0);
- if ((x = safe_malloc_mul_2op_p(from->num_indices, /*times*/sizeof(FLAC__StreamMetadata_CueSheet_Index))) == NULL)
- return false;
- memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
- to->indices = x;
- }
- return true;
-}
-
-static void seektable_calculate_length_(FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-}
-
-static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points)
-{
- FLAC__StreamMetadata_SeekPoint *object_array;
-
- FLAC__ASSERT(num_points > 0);
-
- object_array = safe_malloc_mul_2op_p(num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint));
-
- if (object_array != NULL) {
- unsigned i;
- for (i = 0; i < num_points; i++) {
- object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- object_array[i].stream_offset = 0;
- object_array[i].frame_samples = 0;
- }
- }
-
- return object_array;
-}
-
-static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object)
-{
- unsigned i;
-
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8;
- object->length += object->data.vorbis_comment.vendor_string.length;
- object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8;
- for (i = 0; i < object->data.vorbis_comment.num_comments; i++) {
- object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8);
- object->length += object->data.vorbis_comment.comments[i].length;
- }
-}
-
-static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments)
-{
- FLAC__ASSERT(num_comments > 0);
-
- return safe_calloc_(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
-}
-
-static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
-{
- unsigned i;
-
- FLAC__ASSERT(object_array != NULL && num_comments > 0);
-
- for (i = 0; i < num_comments; i++)
- free(object_array[i].entry);
-
- free(object_array);
-}
-
-static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
-{
- FLAC__StreamMetadata_VorbisComment_Entry *return_array;
-
- FLAC__ASSERT(object_array != NULL);
- FLAC__ASSERT(num_comments > 0);
-
- return_array = vorbiscomment_entry_array_new_(num_comments);
-
- if (return_array != NULL) {
- unsigned i;
-
- for (i = 0; i < num_comments; i++) {
- if (!copy_vcentry_(return_array+i, object_array+i)) {
- vorbiscomment_entry_array_delete_(return_array, num_comments);
- return 0;
- }
- }
- }
-
- return return_array;
-}
-
-static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy)
-{
- FLAC__byte *save;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(dest != NULL);
- FLAC__ASSERT(src != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT((src->entry != NULL && src->length > 0) || (src->entry == NULL && src->length == 0));
-
- save = dest->entry;
-
- if (src->entry != NULL) {
- if (copy) {
- /* do the copy first so that if we fail we leave the dest object untouched */
- if (!copy_vcentry_(dest, src))
- return false;
- }
- else {
- /* we have to make sure that the string we're taking over is null-terminated */
-
- /*
- * Stripping the const from src->entry is OK since we're taking
- * ownership of the pointer. This is a hack around a deficiency
- * in the API where the same function is used for 'copy' and
- * 'own', but the source entry is a const pointer. If we were
- * precise, the 'own' flavor would be a separate function with a
- * non-const source pointer. But it's not, so we hack away.
- */
- if (!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length))
- return false;
- *dest = *src;
- }
- }
- else {
- /* the src is null */
- *dest = *src;
- }
-
- free(save);
-
- vorbiscomment_calculate_length_(object);
- return true;
-}
-
-static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name, unsigned field_name_length)
-{
- unsigned i;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(field_name != NULL);
-
- for (i = offset; i < object->data.vorbis_comment.num_comments; i++) {
- if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length))
- return (int)i;
- }
-
- return -1;
-}
-
-static void cuesheet_calculate_length_(FLAC__StreamMetadata *object)
-{
- unsigned i;
-
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- object->length = (
- FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN +
- FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN +
- FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN +
- FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN
- ) / 8;
-
- object->length += object->data.cue_sheet.num_tracks * (
- FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN +
- FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN
- ) / 8;
-
- for (i = 0; i < object->data.cue_sheet.num_tracks; i++) {
- object->length += object->data.cue_sheet.tracks[i].num_indices * (
- FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN +
- FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN +
- FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN
- ) / 8;
- }
-}
-
-static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices)
-{
- FLAC__ASSERT(num_indices > 0);
-
- return safe_calloc_(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
-}
-
-static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks)
-{
- FLAC__ASSERT(num_tracks > 0);
-
- return safe_calloc_(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
-}
-
-static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
-{
- unsigned i;
-
- FLAC__ASSERT(object_array != NULL && num_tracks > 0);
-
- for (i = 0; i < num_tracks; i++) {
- if (object_array[i].indices != 0) {
- FLAC__ASSERT(object_array[i].num_indices > 0);
- free(object_array[i].indices);
- }
- }
-
- free(object_array);
-}
-
-static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
-{
- FLAC__StreamMetadata_CueSheet_Track *return_array;
-
- FLAC__ASSERT(object_array != NULL);
- FLAC__ASSERT(num_tracks > 0);
-
- return_array = cuesheet_track_array_new_(num_tracks);
-
- if (return_array != NULL) {
- unsigned i;
-
- for (i = 0; i < num_tracks; i++) {
- if (!copy_track_(return_array+i, object_array+i)) {
- cuesheet_track_array_delete_(return_array, num_tracks);
- return 0;
- }
- }
- }
-
- return return_array;
-}
-
-static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy)
-{
- FLAC__StreamMetadata_CueSheet_Index *save;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(dest != NULL);
- FLAC__ASSERT(src != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT((src->indices != NULL && src->num_indices > 0) || (src->indices == NULL && src->num_indices == 0));
-
- save = dest->indices;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if (copy) {
- if (!copy_track_(dest, src))
- return false;
- }
- else {
- *dest = *src;
- }
-
- free(save);
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-
-/****************************************************************************
- *
- * Metadata object routines
- *
- ***************************************************************************/
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type)
-{
- FLAC__StreamMetadata *object;
-
- if (type > FLAC__MAX_METADATA_TYPE)
- return 0;
-
- object = calloc(1, sizeof(FLAC__StreamMetadata));
- if (object != NULL) {
- object->is_last = false;
- object->type = type;
- switch(type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
- break;
- case FLAC__METADATA_TYPE_PADDING:
- /* calloc() took care of this for us:
- object->length = 0;
- */
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
- /* calloc() took care of this for us:
- object->data.application.data = 0;
- */
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- /* calloc() took care of this for us:
- object->length = 0;
- object->data.seek_table.num_points = 0;
- object->data.seek_table.points = 0;
- */
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING);
- if (!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) {
- free(object);
- return 0;
- }
- vorbiscomment_calculate_length_(object);
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- cuesheet_calculate_length_(object);
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- object->length = (
- FLAC__STREAM_METADATA_PICTURE_TYPE_LEN +
- FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* empty mime_type string */
- FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* empty description string */
- FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN +
- FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN +
- FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN +
- FLAC__STREAM_METADATA_PICTURE_COLORS_LEN +
- FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN +
- 0 /* no data */
- ) / 8;
- object->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER;
- object->data.picture.mime_type = 0;
- object->data.picture.description = 0;
- /* calloc() took care of this for us:
- object->data.picture.width = 0;
- object->data.picture.height = 0;
- object->data.picture.depth = 0;
- object->data.picture.colors = 0;
- object->data.picture.data_length = 0;
- object->data.picture.data = 0;
- */
- /* now initialize mime_type and description with empty strings to make things easier on the client */
- if (!copy_cstring_(&object->data.picture.mime_type, "")) {
- free(object);
- return 0;
- }
- if (!copy_cstring_((char**)(&object->data.picture.description), "")) {
- free(object->data.picture.mime_type);
- free(object);
- return 0;
- }
- break;
- default:
- /* calloc() took care of this for us:
- object->length = 0;
- object->data.unknown.data = 0;
- */
- break;
- }
- }
-
- return object;
-}
-
-FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object)
-{
- FLAC__StreamMetadata *to;
-
- FLAC__ASSERT(object != NULL);
-
- if ((to = FLAC__metadata_object_new(object->type)) != NULL) {
- to->is_last = object->is_last;
- to->type = object->type;
- to->length = object->length;
- switch(to->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- memcpy(&to->data.stream_info, &object->data.stream_info, sizeof(FLAC__StreamMetadata_StreamInfo));
- break;
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if (to->length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8) { /* underflow check */
- FLAC__metadata_object_delete(to);
- return 0;
- }
- memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8);
- if (!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- to->data.seek_table.num_points = object->data.seek_table.num_points;
- if (to->data.seek_table.num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) { /* overflow check */
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if (!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if (to->data.vorbis_comment.vendor_string.entry != NULL) {
- free(to->data.vorbis_comment.vendor_string.entry);
- to->data.vorbis_comment.vendor_string.entry = 0;
- }
- if (!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if (object->data.vorbis_comment.num_comments == 0) {
- to->data.vorbis_comment.comments = 0;
- }
- else {
- to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
- if (to->data.vorbis_comment.comments == NULL) {
- to->data.vorbis_comment.num_comments = 0;
- FLAC__metadata_object_delete(to);
- return 0;
- }
- }
- to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet));
- if (object->data.cue_sheet.num_tracks == 0) {
- FLAC__ASSERT(object->data.cue_sheet.tracks == NULL);
- }
- else {
- FLAC__ASSERT(object->data.cue_sheet.tracks != 0);
- to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
- if (to->data.cue_sheet.tracks == NULL) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- to->data.picture.type = object->data.picture.type;
- if (!copy_cstring_(&to->data.picture.mime_type, object->data.picture.mime_type)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- if (!copy_cstring_((char**)(&to->data.picture.description), (const char*)object->data.picture.description)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- to->data.picture.width = object->data.picture.width;
- to->data.picture.height = object->data.picture.height;
- to->data.picture.depth = object->data.picture.depth;
- to->data.picture.colors = object->data.picture.colors;
- to->data.picture.data_length = object->data.picture.data_length;
- if (!copy_bytes_((&to->data.picture.data), object->data.picture.data, object->data.picture.data_length)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- default:
- if (!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) {
- FLAC__metadata_object_delete(to);
- return 0;
- }
- break;
- }
- }
-
- return to;
-}
-
-void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(object != NULL);
-
- switch(object->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if (object->data.application.data != NULL) {
- free(object->data.application.data);
- object->data.application.data = NULL;
- }
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- if (object->data.seek_table.points != NULL) {
- free(object->data.seek_table.points);
- object->data.seek_table.points = NULL;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if (object->data.vorbis_comment.vendor_string.entry != NULL) {
- free(object->data.vorbis_comment.vendor_string.entry);
- object->data.vorbis_comment.vendor_string.entry = 0;
- }
- if (object->data.vorbis_comment.comments != NULL) {
- FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
- vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
- object->data.vorbis_comment.comments = NULL;
- object->data.vorbis_comment.num_comments = 0;
- }
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if (object->data.cue_sheet.tracks != NULL) {
- FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
- cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
- object->data.cue_sheet.tracks = NULL;
- object->data.cue_sheet.num_tracks = 0;
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if (object->data.picture.mime_type != NULL) {
- free(object->data.picture.mime_type);
- object->data.picture.mime_type = NULL;
- }
- if (object->data.picture.description != NULL) {
- free(object->data.picture.description);
- object->data.picture.description = NULL;
- }
- if (object->data.picture.data != NULL) {
- free(object->data.picture.data);
- object->data.picture.data = NULL;
- }
- break;
- default:
- if (object->data.unknown.data != NULL) {
- free(object->data.unknown.data);
- object->data.unknown.data = NULL;
- }
- break;
- }
-}
-
-FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object)
-{
- FLAC__metadata_object_delete_data(object);
- free(object);
-}
-
-static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2)
-{
- if (block1->min_blocksize != block2->min_blocksize)
- return false;
- if (block1->max_blocksize != block2->max_blocksize)
- return false;
- if (block1->min_framesize != block2->min_framesize)
- return false;
- if (block1->max_framesize != block2->max_framesize)
- return false;
- if (block1->sample_rate != block2->sample_rate)
- return false;
- if (block1->channels != block2->channels)
- return false;
- if (block1->bits_per_sample != block2->bits_per_sample)
- return false;
- if (block1->total_samples != block2->total_samples)
- return false;
- if (memcmp(block1->md5sum, block2->md5sum, 16) != 0)
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, unsigned block_length)
-{
- FLAC__ASSERT(block1 != NULL);
- FLAC__ASSERT(block2 != NULL);
- FLAC__ASSERT(block_length >= sizeof(block1->id));
-
- if (memcmp(block1->id, block2->id, sizeof(block1->id)) != 0)
- return false;
- if (block1->data != NULL && block2->data != NULL)
- return memcmp(block1->data, block2->data, block_length - sizeof(block1->id)) == 0;
- else
- return block1->data == block2->data;
-}
-
-static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2)
-{
- unsigned i;
-
- FLAC__ASSERT(block1 != NULL);
- FLAC__ASSERT(block2 != NULL);
-
- if (block1->num_points != block2->num_points)
- return false;
-
- if (block1->points != NULL && block2->points != NULL) {
- for (i = 0; i < block1->num_points; i++) {
- if (block1->points[i].sample_number != block2->points[i].sample_number)
- return false;
- if (block1->points[i].stream_offset != block2->points[i].stream_offset)
- return false;
- if (block1->points[i].frame_samples != block2->points[i].frame_samples)
- return false;
- }
- return true;
- }
- else
- return block1->points == block2->points;
-}
-
-static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2)
-{
- unsigned i;
-
- if (block1->vendor_string.length != block2->vendor_string.length)
- return false;
-
- if (block1->vendor_string.entry != NULL && block2->vendor_string.entry != NULL) {
- if (memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length) != 0)
- return false;
- }
- else if (block1->vendor_string.entry != block2->vendor_string.entry)
- return false;
-
- if (block1->num_comments != block2->num_comments)
- return false;
-
- for (i = 0; i < block1->num_comments; i++) {
- if (block1->comments[i].entry != NULL && block2->comments[i].entry != NULL) {
- if (memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length) != 0)
- return false;
- }
- else if (block1->comments[i].entry != block2->comments[i].entry)
- return false;
- }
- return true;
-}
-
-static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2)
-{
- unsigned i, j;
-
- if (strcmp(block1->media_catalog_number, block2->media_catalog_number) != 0)
- return false;
-
- if (block1->lead_in != block2->lead_in)
- return false;
-
- if (block1->is_cd != block2->is_cd)
- return false;
-
- if (block1->num_tracks != block2->num_tracks)
- return false;
-
- if (block1->tracks != NULL && block2->tracks != NULL) {
- FLAC__ASSERT(block1->num_tracks > 0);
- for (i = 0; i < block1->num_tracks; i++) {
- if (block1->tracks[i].offset != block2->tracks[i].offset)
- return false;
- if (block1->tracks[i].number != block2->tracks[i].number)
- return false;
- if (memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc)) != 0)
- return false;
- if (block1->tracks[i].type != block2->tracks[i].type)
- return false;
- if (block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis)
- return false;
- if (block1->tracks[i].num_indices != block2->tracks[i].num_indices)
- return false;
- if (block1->tracks[i].indices != NULL && block2->tracks[i].indices != NULL) {
- FLAC__ASSERT(block1->tracks[i].num_indices > 0);
- for (j = 0; j < block1->tracks[i].num_indices; j++) {
- if (block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset)
- return false;
- if (block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number)
- return false;
- }
- }
- else if (block1->tracks[i].indices != block2->tracks[i].indices)
- return false;
- }
- }
- else if (block1->tracks != block2->tracks)
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2)
-{
- if (block1->type != block2->type)
- return false;
- if (block1->mime_type != block2->mime_type && (block1->mime_type == 0 || block2->mime_type == 0 || strcmp(block1->mime_type, block2->mime_type)))
- return false;
- if (block1->description != block2->description && (block1->description == 0 || block2->description == 0 || strcmp((const char *)block1->description, (const char *)block2->description)))
- return false;
- if (block1->width != block2->width)
- return false;
- if (block1->height != block2->height)
- return false;
- if (block1->depth != block2->depth)
- return false;
- if (block1->colors != block2->colors)
- return false;
- if (block1->data_length != block2->data_length)
- return false;
- if (block1->data != block2->data && (block1->data == NULL || block2->data == NULL || memcmp(block1->data, block2->data, block1->data_length)))
- return false;
- return true;
-}
-
-static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length)
-{
- FLAC__ASSERT(block1 != NULL);
- FLAC__ASSERT(block2 != NULL);
-
- if (block1->data != NULL && block2->data != NULL)
- return memcmp(block1->data, block2->data, block_length) == 0;
- else
- return block1->data == block2->data;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2)
-{
- FLAC__ASSERT(block1 != NULL);
- FLAC__ASSERT(block2 != NULL);
-
- if (block1->type != block2->type) {
- return false;
- }
- if (block1->is_last != block2->is_last) {
- return false;
- }
- if (block1->length != block2->length) {
- return false;
- }
- switch(block1->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info);
- case FLAC__METADATA_TYPE_PADDING:
- return true; /* we don't compare the padding guts */
- case FLAC__METADATA_TYPE_APPLICATION:
- return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length);
- case FLAC__METADATA_TYPE_SEEKTABLE:
- return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table);
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- return compare_block_data_vorbiscomment_(&block1->data.vorbis_comment, &block2->data.vorbis_comment);
- case FLAC__METADATA_TYPE_CUESHEET:
- return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet);
- case FLAC__METADATA_TYPE_PICTURE:
- return compare_block_data_picture_(&block1->data.picture, &block2->data.picture);
- default:
- return compare_block_data_unknown_(&block1->data.unknown, &block2->data.unknown, block1->length);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy)
-{
- FLAC__byte *save;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
- FLAC__ASSERT((data != NULL && length > 0) || (data == NULL && length == 0 && copy == false));
-
- save = object->data.application.data;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if (copy) {
- if (!copy_bytes_(&object->data.application.data, data, length))
- return false;
- }
- else {
- object->data.application.data = data;
- }
-
- free(save);
-
- object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- if (object->data.seek_table.points == 0) {
- FLAC__ASSERT(object->data.seek_table.num_points == 0);
- if (new_num_points == 0)
- return true;
- else if ((object->data.seek_table.points = seekpoint_array_new_(new_num_points)) == 0)
- return false;
- }
- else {
- const size_t old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
- const size_t new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
-
- /* overflow check */
- if (new_num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint))
- return false;
-
- FLAC__ASSERT(object->data.seek_table.num_points > 0);
-
- if (new_size == 0) {
- free(object->data.seek_table.points);
- object->data.seek_table.points = 0;
- }
- else if ((object->data.seek_table.points = safe_realloc_(object->data.seek_table.points, new_size)) == NULL)
- return false;
-
- /* if growing, set new elements to placeholders */
- if (new_size > old_size) {
- unsigned i;
- for (i = object->data.seek_table.num_points; i < new_num_points; i++) {
- object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
- object->data.seek_table.points[i].stream_offset = 0;
- object->data.seek_table.points[i].frame_samples = 0;
- }
- }
- }
-
- object->data.seek_table.num_points = new_num_points;
-
- seektable_calculate_length_(object);
- return true;
-}
-
-FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num < object->data.seek_table.num_points);
-
- object->data.seek_table.points[point_num] = point;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
-{
- int i;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num <= object->data.seek_table.num_points);
-
- if (!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1))
- return false;
-
- /* move all points >= point_num forward one space */
- for (i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--)
- object->data.seek_table.points[i] = object->data.seek_table.points[i-1];
-
- FLAC__metadata_object_seektable_set_point(object, point_num, point);
- seektable_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num)
-{
- unsigned i;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(point_num < object->data.seek_table.num_points);
-
- /* move all points > point_num backward one space */
- for (i = point_num; i < object->data.seek_table.num_points-1; i++)
- object->data.seek_table.points[i] = object->data.seek_table.points[i+1];
-
- return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- return FLAC__format_seektable_is_legal(&object->data.seek_table);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- if (num > 0)
- /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */
- return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num);
- else
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number)
-{
- FLAC__StreamMetadata_SeekTable *seek_table;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- seek_table = &object->data.seek_table;
-
- if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1))
- return false;
-
- seek_table->points[seek_table->num_points - 1].sample_number = sample_number;
- seek_table->points[seek_table->num_points - 1].stream_offset = 0;
- seek_table->points[seek_table->num_points - 1].frame_samples = 0;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(sample_numbers != 0 || num == 0);
-
- if (num > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
-
- i = seek_table->num_points;
-
- if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
- return false;
-
- for (j = 0; j < num; i++, j++) {
- seek_table->points[i].sample_number = sample_numbers[j];
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(total_samples > 0);
-
- if (num > 0 && total_samples > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
-
- i = seek_table->num_points;
-
- if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
- return false;
-
- for (j = 0; j < num; i++, j++) {
- seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
- FLAC__ASSERT(samples > 0);
- FLAC__ASSERT(total_samples > 0);
-
- if (samples > 0 && total_samples > 0) {
- FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
- unsigned i, j;
- FLAC__uint64 num, sample;
-
- num = 1 + total_samples / samples; /* 1+ for the first sample at 0 */
- /* now account for the fact that we don't place a seekpoint at "total_samples" since samples are number from 0: */
- if (total_samples % samples == 0)
- num--;
-
- /* Put a strict upper bound on the number of allowed seek points. */
- if (num > 32768) {
- /* Set the bound and recalculate samples accordingly. */
- num = 32768;
- samples = total_samples / num;
- }
-
- i = seek_table->num_points;
-
- if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + (unsigned)num))
- return false;
-
- sample = 0;
- for (j = 0; j < num; i++, j++, sample += samples) {
- seek_table->points[i].sample_number = sample;
- seek_table->points[i].stream_offset = 0;
- seek_table->points[i].frame_samples = 0;
- }
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact)
-{
- unsigned unique;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- unique = FLAC__format_seektable_sort(&object->data.seek_table);
-
- return !compact || FLAC__metadata_object_seektable_resize_points(object, unique);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- if (!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length))
- return false;
- return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.vendor_string, &entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- if (object->data.vorbis_comment.comments == NULL) {
- FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0);
- if (new_num_comments == 0)
- return true;
- else if ((object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments)) == NULL)
- return false;
- }
- else {
- const size_t old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
- const size_t new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
-
- /* overflow check */
- if (new_num_comments > UINT32_MAX / sizeof(FLAC__StreamMetadata_VorbisComment_Entry))
- return false;
-
- FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
-
- /* if shrinking, free the truncated entries */
- if (new_num_comments < object->data.vorbis_comment.num_comments) {
- unsigned i;
- for (i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++)
- if (object->data.vorbis_comment.comments[i].entry != NULL)
- free(object->data.vorbis_comment.comments[i].entry);
- }
-
- if (new_size == 0) {
- free(object->data.vorbis_comment.comments);
- object->data.vorbis_comment.comments = 0;
- }
- else {
- FLAC__StreamMetadata_VorbisComment_Entry *oldptr = object->data.vorbis_comment.comments;
- if ((object->data.vorbis_comment.comments = realloc(object->data.vorbis_comment.comments, new_size)) == NULL) {
- vorbiscomment_entry_array_delete_(oldptr, object->data.vorbis_comment.num_comments);
- object->data.vorbis_comment.num_comments = 0;
- return false;
- }
- }
-
- /* if growing, zero all the length/pointers of new elements */
- if (new_size > old_size)
- memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size);
- }
-
- object->data.vorbis_comment.num_comments = new_num_comments;
-
- vorbiscomment_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
-
- if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
- return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.comments[comment_num], &entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__StreamMetadata_VorbisComment *vc;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments);
-
- if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- vc = &object->data.vorbis_comment;
-
- if (!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1))
- return false;
-
- /* move all comments >= comment_num forward one space */
- memmove(&vc->comments[comment_num+1], &vc->comments[comment_num], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-1-comment_num));
- vc->comments[comment_num].length = 0;
- vc->comments[comment_num].entry = 0;
-
- return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy)
-{
- FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
-
- if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- {
- int i;
- size_t field_name_length;
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
-
- if (eq == NULL)
- return false; /* double protection */
-
- field_name_length = eq-entry.entry;
-
- i = vorbiscomment_find_entry_from_(object, 0, (const char *)entry.entry, field_name_length);
- if (i >= 0) {
- unsigned indx = (unsigned)i;
- if (!FLAC__metadata_object_vorbiscomment_set_comment(object, indx, entry, copy))
- return false;
- entry = object->data.vorbis_comment.comments[indx];
- indx++; /* skip over replaced comment */
- if (all && indx < object->data.vorbis_comment.num_comments) {
- i = vorbiscomment_find_entry_from_(object, indx, (const char *)entry.entry, field_name_length);
- while (i >= 0) {
- indx = (unsigned)i;
- if (!FLAC__metadata_object_vorbiscomment_delete_comment(object, indx))
- return false;
- if (indx < object->data.vorbis_comment.num_comments)
- i = vorbiscomment_find_entry_from_(object, indx, (const char *)entry.entry, field_name_length);
- else
- i = -1;
- }
- }
- return true;
- }
- else
- return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num)
-{
- FLAC__StreamMetadata_VorbisComment *vc;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
-
- vc = &object->data.vorbis_comment;
-
- /* free the comment at comment_num */
- free(vc->comments[comment_num].entry);
-
- /* move all comments > comment_num backward one space */
- memmove(&vc->comments[comment_num], &vc->comments[comment_num+1], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-comment_num-1));
- vc->comments[vc->num_comments-1].length = 0;
- vc->comments[vc->num_comments-1].entry = 0;
-
- return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value)
-{
- FLAC__ASSERT(entry != NULL);
- FLAC__ASSERT(field_name != NULL);
- FLAC__ASSERT(field_value != NULL);
-
- if (!FLAC__format_vorbiscomment_entry_name_is_legal(field_name))
- return false;
- if (!FLAC__format_vorbiscomment_entry_value_is_legal((const FLAC__byte *)field_value, (unsigned)(-1)))
- return false;
-
- {
- const size_t nn = strlen(field_name);
- const size_t nv = strlen(field_value);
- entry->length = nn + 1 /*=*/ + nv;
- if ((entry->entry = safe_malloc_add_4op_(nn, /*+*/1, /*+*/nv, /*+*/1)) == NULL)
- return false;
- memcpy(entry->entry, field_name, nn);
- entry->entry[nn] = '=';
- memcpy(entry->entry+nn+1, field_value, nv);
- entry->entry[entry->length] = '\0';
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value)
-{
- FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
- FLAC__ASSERT(field_name != NULL);
- FLAC__ASSERT(field_value != NULL);
-
- if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
- return false;
-
- {
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
- const size_t nn = eq-entry.entry;
- const size_t nv = entry.length-nn-1; /* -1 for the '=' */
-
- if (eq == NULL)
- return false; /* double protection */
- if ((*field_name = safe_malloc_add_2op_(nn, /*+*/1)) == NULL)
- return false;
- if ((*field_value = safe_malloc_add_2op_(nv, /*+*/1)) == NULL) {
- free(*field_name);
- return false;
- }
- memcpy(*field_name, entry.entry, nn);
- memcpy(*field_value, entry.entry+nn+1, nv);
- (*field_name)[nn] = '\0';
- (*field_value)[nv] = '\0';
- }
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length)
-{
- FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
- {
- const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
- return (eq != NULL && (unsigned)(eq-entry.entry) == field_name_length && FLAC__STRNCASECMP(field_name, (const char *)entry.entry, field_name_length) == 0);
- }
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name)
-{
- FLAC__ASSERT(field_name != NULL);
-
- return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name));
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name)
-{
- const unsigned field_name_length = strlen(field_name);
- unsigned i;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- for (i = 0; i < object->data.vorbis_comment.num_comments; i++) {
- if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
- if (!FLAC__metadata_object_vorbiscomment_delete_comment(object, i))
- return -1;
- else
- return 1;
- }
- }
-
- return 0;
-}
-
-FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name)
-{
- FLAC__bool ok = true;
- unsigned matching = 0;
- const unsigned field_name_length = strlen(field_name);
- int i;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- /* must delete from end to start otherwise it will interfere with our iteration */
- for (i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) {
- if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
- matching++;
- ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i);
- }
- }
-
- return ok? (int)matching : -1;
-}
-
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void)
-{
- return calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track));
-}
-
-FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__StreamMetadata_CueSheet_Track *to;
-
- FLAC__ASSERT(object != NULL);
-
- if ((to = FLAC__metadata_object_cuesheet_track_new()) != NULL) {
- if (!copy_track_(to, object)) {
- FLAC__metadata_object_cuesheet_track_delete(to);
- return 0;
- }
- }
-
- return to;
-}
-
-void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__ASSERT(object != NULL);
-
- if (object->indices != NULL) {
- FLAC__ASSERT(object->num_indices > 0);
- free(object->indices);
- }
-}
-
-FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object)
-{
- FLAC__metadata_object_cuesheet_track_delete_data(object);
- free(object);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- if (track->indices == NULL) {
- FLAC__ASSERT(track->num_indices == 0);
- if (new_num_indices == 0)
- return true;
- else if ((track->indices = cuesheet_track_index_array_new_(new_num_indices)) == NULL)
- return false;
- }
- else {
- const size_t old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
- const size_t new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
-
- /* overflow check */
- if (new_num_indices > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Index))
- return false;
-
- FLAC__ASSERT(track->num_indices > 0);
-
- if (new_size == 0) {
- free(track->indices);
- track->indices = 0;
- }
- else if ((track->indices = safe_realloc_(track->indices, new_size)) == NULL)
- return false;
-
- /* if growing, zero all the lengths/pointers of new elements */
- if (new_size > old_size)
- memset(track->indices + track->num_indices, 0, new_size - old_size);
- }
-
- track->num_indices = new_num_indices;
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index indx)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
- FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- if (!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1))
- return false;
-
- /* move all indices >= index_num forward one space */
- memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num));
-
- track->indices[index_num] = indx;
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
-{
- FLAC__StreamMetadata_CueSheet_Index indx;
- memset(&indx, 0, sizeof(indx));
- return FLAC__metadata_object_cuesheet_track_insert_index(object, track_num, index_num, indx);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
-{
- FLAC__StreamMetadata_CueSheet_Track *track;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
- FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices);
-
- track = &object->data.cue_sheet.tracks[track_num];
-
- /* move all indices > index_num backward one space */
- memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-index_num-1));
-
- FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1);
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- if (object->data.cue_sheet.tracks == NULL) {
- FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0);
- if (new_num_tracks == 0)
- return true;
- else if ((object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks)) == NULL)
- return false;
- }
- else {
- const size_t old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
- const size_t new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
-
- /* overflow check */
- if (new_num_tracks > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Track))
- return false;
-
- FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
-
- /* if shrinking, free the truncated entries */
- if (new_num_tracks < object->data.cue_sheet.num_tracks) {
- unsigned i;
- for (i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++)
- free(object->data.cue_sheet.tracks[i].indices);
- }
-
- if (new_size == 0) {
- free(object->data.cue_sheet.tracks);
- object->data.cue_sheet.tracks = 0;
- }
- else if ((object->data.cue_sheet.tracks = safe_realloc_(object->data.cue_sheet.tracks, new_size)) == NULL)
- return false;
-
- /* if growing, zero all the lengths/pointers of new elements */
- if (new_size > old_size)
- memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size);
- }
-
- object->data.cue_sheet.num_tracks = new_num_tracks;
-
- cuesheet_calculate_length_(object);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- return cuesheet_set_track_(object, object->data.cue_sheet.tracks + track_num, track, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
-{
- FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks);
-
- cs = &object->data.cue_sheet;
-
- if (!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1))
- return false;
-
- /* move all tracks >= track_num forward one space */
- memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num));
- cs->tracks[track_num].num_indices = 0;
- cs->tracks[track_num].indices = 0;
-
- return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num)
-{
- FLAC__StreamMetadata_CueSheet_Track track;
- memset(&track, 0, sizeof(track));
- return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num)
-{
- FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
- FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
-
- cs = &object->data.cue_sheet;
-
- /* free the track at track_num */
- free(cs->tracks[track_num].indices);
-
- /* move all tracks > track_num backward one space */
- memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1));
- cs->tracks[cs->num_tracks-1].num_indices = 0;
- cs->tracks[cs->num_tracks-1].indices = 0;
-
- return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1);
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation);
-}
-
-static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, unsigned track)
-{
- if (track >= (cs->num_tracks-1) || cs->tracks[track].num_indices < 1)
- return 0;
- else if (cs->tracks[track].indices[0].number == 1)
- return cs->tracks[track].indices[0].offset + cs->tracks[track].offset + cs->lead_in;
- else if (cs->tracks[track].num_indices < 2)
- return 0;
- else if (cs->tracks[track].indices[1].number == 1)
- return cs->tracks[track].indices[1].offset + cs->tracks[track].offset + cs->lead_in;
- else
- return 0;
-}
-
-static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x)
-{
- FLAC__uint32 n = 0;
- while (x) {
- n += (x%10);
- x /= 10;
- }
- return n;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object)
-{
- const FLAC__StreamMetadata_CueSheet *cs;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
-
- cs = &object->data.cue_sheet;
-
- if (cs->num_tracks < 2) /* need at least one real track and the lead-out track */
- return 0;
-
- {
- FLAC__uint32 i, length, sum = 0;
- for (i = 0; i < (cs->num_tracks-1); i++) /* -1 to avoid counting the lead-out */
- sum += cddb_add_digits_((FLAC__uint32)(get_index_01_offset_(cs, i) / 44100));
- length = (FLAC__uint32)((cs->tracks[cs->num_tracks-1].offset+cs->lead_in) / 44100) - (FLAC__uint32)(get_index_01_offset_(cs, 0) / 44100);
-
- return (sum % 0xFF) << 24 | length << 8 | (FLAC__uint32)(cs->num_tracks-1);
- }
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy)
-{
- char *old;
- size_t old_length, new_length;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT(mime_type != NULL);
-
- old = object->data.picture.mime_type;
- old_length = old? strlen(old) : 0;
- new_length = strlen(mime_type);
-
- /* do the copy first so that if we fail we leave the object untouched */
- if (copy) {
- if (new_length >= SIZE_MAX) /* overflow check */
- return false;
- if (!copy_bytes_((FLAC__byte**)(&object->data.picture.mime_type), (FLAC__byte*)mime_type, new_length+1))
- return false;
- }
- else {
- object->data.picture.mime_type = mime_type;
- }
-
- free(old);
-
- object->length -= old_length;
- object->length += new_length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy)
-{
- FLAC__byte *old;
- size_t old_length, new_length;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT(description != NULL);
-
- old = object->data.picture.description;
- old_length = old? strlen((const char *)old) : 0;
- new_length = strlen((const char *)description);
-
- /* do the copy first so that if we fail we leave the object untouched */
- if (copy) {
- if (new_length >= SIZE_MAX) /* overflow check */
- return false;
- if (!copy_bytes_(&object->data.picture.description, description, new_length+1))
- return false;
- }
- else {
- object->data.picture.description = description;
- }
-
- free(old);
-
- object->length -= old_length;
- object->length += new_length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy)
-{
- FLAC__byte *old;
-
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
- FLAC__ASSERT((data != NULL && length > 0) || (data == NULL && length == 0 && copy == false));
-
- old = object->data.picture.data;
-
- /* do the copy first so that if we fail we leave the object untouched */
- if (copy) {
- if (!copy_bytes_(&object->data.picture.data, data, length))
- return false;
- }
- else {
- object->data.picture.data = data;
- }
-
- free(old);
-
- object->length -= object->data.picture.data_length;
- object->data.picture.data_length = length;
- object->length += length;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation)
-{
- FLAC__ASSERT(object != NULL);
- FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
-
- return FLAC__format_picture_is_legal(&object->data.picture, violation);
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <string.h> /* for memcpy() */
-#include "FLAC/assert.h"
-#include "private/ogg_decoder_aspect.h"
-#include "private/ogg_mapping.h"
-#include "private/macros.h"
-
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect)
-{
- /* we will determine the serial number later if necessary */
- if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
- return false;
-
- if(ogg_sync_init(&aspect->sync_state) != 0)
- return false;
-
- aspect->version_major = ~(0u);
- aspect->version_minor = ~(0u);
-
- aspect->need_serial_number = aspect->use_first_serial_number;
-
- aspect->end_of_stream = false;
- aspect->have_working_page = false;
-
- return true;
-}
-
-void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect)
-{
- (void)ogg_sync_clear(&aspect->sync_state);
- (void)ogg_stream_clear(&aspect->stream_state);
-}
-
-void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value)
-{
- aspect->use_first_serial_number = false;
- aspect->serial_number = value;
-}
-
-void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect)
-{
- aspect->use_first_serial_number = true;
-}
-
-void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect)
-{
- (void)ogg_stream_reset(&aspect->stream_state);
- (void)ogg_sync_reset(&aspect->sync_state);
- aspect->end_of_stream = false;
- aspect->have_working_page = false;
-}
-
-void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect)
-{
- FLAC__ogg_decoder_aspect_flush(aspect);
-
- if(aspect->use_first_serial_number)
- aspect->need_serial_number = true;
-}
-
-FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, const FLAC__StreamDecoder *decoder, void *client_data)
-{
- static const size_t OGG_BYTES_CHUNK = 8192;
- const size_t bytes_requested = *bytes;
-
- /*
- * The FLAC decoding API uses pull-based reads, whereas Ogg decoding
- * is push-based. In libFLAC, when you ask to decode a frame, the
- * decoder will eventually call the read callback to supply some data,
- * but how much it asks for depends on how much free space it has in
- * its internal buffer. It does not try to grow its internal buffer
- * to accomodate a whole frame because then the internal buffer size
- * could not be limited, which is necessary in embedded applications.
- *
- * Ogg however grows its internal buffer until a whole page is present;
- * only then can you get decoded data out. So we can't just ask for
- * the same number of bytes from Ogg, then pass what's decoded down to
- * libFLAC. If what libFLAC is asking for will not contain a whole
- * page, then we will get no data from ogg_sync_pageout(), and at the
- * same time cannot just read more data from the client for the purpose
- * of getting a whole decoded page because the decoded size might be
- * larger than libFLAC's internal buffer.
- *
- * Instead, whenever this read callback wrapper is called, we will
- * continually request data from the client until we have at least one
- * page, and manage pages internally so that we can send pieces of
- * pages down to libFLAC in such a way that we obey its size
- * requirement. To limit the amount of callbacks, we will always try
- * to read in enough pages to return the full number of bytes
- * requested.
- */
- *bytes = 0;
- while (*bytes < bytes_requested && !aspect->end_of_stream) {
- if (aspect->have_working_page) {
- if (aspect->have_working_packet) {
- size_t n = bytes_requested - *bytes;
- if ((size_t)aspect->working_packet.bytes <= n) {
- /* the rest of the packet will fit in the buffer */
- n = aspect->working_packet.bytes;
- memcpy(buffer, aspect->working_packet.packet, n);
- *bytes += n;
- buffer += n;
- aspect->have_working_packet = false;
- }
- else {
- /* only n bytes of the packet will fit in the buffer */
- memcpy(buffer, aspect->working_packet.packet, n);
- *bytes += n;
- buffer += n;
- aspect->working_packet.packet += n;
- aspect->working_packet.bytes -= n;
- }
- }
- else {
- /* try and get another packet */
- const int ret = ogg_stream_packetout(&aspect->stream_state, &aspect->working_packet);
- if (ret > 0) {
- aspect->have_working_packet = true;
- /* if it is the first header packet, check for magic and a supported Ogg FLAC mapping version */
- if (aspect->working_packet.bytes > 0 && aspect->working_packet.packet[0] == FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE) {
- const FLAC__byte *b = aspect->working_packet.packet;
- const unsigned header_length =
- FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
- FLAC__OGG_MAPPING_MAGIC_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
- FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH;
- if (aspect->working_packet.bytes < (long)header_length)
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
- b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
- if (memcmp(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH))
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
- b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
- aspect->version_major = (unsigned)(*b);
- b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
- aspect->version_minor = (unsigned)(*b);
- if (aspect->version_major != 1)
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION;
- aspect->working_packet.packet += header_length;
- aspect->working_packet.bytes -= header_length;
- }
- }
- else if (ret == 0) {
- aspect->have_working_page = false;
- }
- else { /* ret < 0 */
- /* lost sync, we'll leave the working page for the next call */
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
- }
- }
- }
- else {
- /* try and get another page */
- const int ret = ogg_sync_pageout(&aspect->sync_state, &aspect->working_page);
- if (ret > 0) {
- /* got a page, grab the serial number if necessary */
- if(aspect->need_serial_number) {
- aspect->stream_state.serialno = aspect->serial_number = ogg_page_serialno(&aspect->working_page);
- aspect->need_serial_number = false;
- }
- if(ogg_stream_pagein(&aspect->stream_state, &aspect->working_page) == 0) {
- aspect->have_working_page = true;
- aspect->have_working_packet = false;
- }
- /* else do nothing, could be a page from another stream */
- }
- else if (ret == 0) {
- /* need more data */
- const size_t ogg_bytes_to_read = flac_max(bytes_requested - *bytes, OGG_BYTES_CHUNK);
- char *oggbuf = ogg_sync_buffer(&aspect->sync_state, ogg_bytes_to_read);
-
- if(0 == oggbuf) {
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
- }
- else {
- size_t ogg_bytes_read = ogg_bytes_to_read;
-
- switch(read_callback(decoder, (FLAC__byte*)oggbuf, &ogg_bytes_read, client_data)) {
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
- break;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
- aspect->end_of_stream = true;
- break;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
- default:
- FLAC__ASSERT(0);
- }
-
- if(ogg_sync_wrote(&aspect->sync_state, ogg_bytes_read) < 0) {
- /* double protection; this will happen if the read callback returns more bytes than the max requested, which would overflow Ogg's internal buffer */
- FLAC__ASSERT(0);
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
- }
- }
- }
- else { /* ret < 0 */
- /* lost sync, bail out */
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
- }
- }
- }
-
- if (aspect->end_of_stream && *bytes == 0) {
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
- }
-
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <string.h> /* for memset() */
-#include "FLAC/assert.h"
-#include "private/ogg_encoder_aspect.h"
-#include "private/ogg_mapping.h"
-
-static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MAJOR = 1;
-static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MINOR = 0;
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect)
-{
- /* we will determine the serial number later if necessary */
- if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
- return false;
-
- aspect->seen_magic = false;
- aspect->is_first_packet = true;
- aspect->samples_written = 0;
-
- return true;
-}
-
-void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect)
-{
- (void)ogg_stream_clear(&aspect->stream_state);
- /*@@@ what about the page? */
-}
-
-void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value)
-{
- aspect->serial_number = value;
-}
-
-FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, unsigned value)
-{
- if(value < (1u << FLAC__OGG_MAPPING_NUM_HEADERS_LEN)) {
- aspect->num_metadata = value;
- return true;
- }
- else
- return false;
-}
-
-void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect)
-{
- aspect->serial_number = 0;
- aspect->num_metadata = 0;
-}
-
-/*
- * The basic FLAC -> Ogg mapping goes like this:
- *
- * - 'fLaC' magic and STREAMINFO block get combined into the first
- * packet. The packet is prefixed with
- * + the one-byte packet type 0x7F
- * + 'FLAC' magic
- * + the 2 byte Ogg FLAC mapping version number
- * + tne 2 byte big-endian # of header packets
- * - The first packet is flushed to the first page.
- * - Each subsequent metadata block goes into its own packet.
- * - Each metadata packet is flushed to page (this is not required,
- * the mapping only requires that a flush must occur after all
- * metadata is written).
- * - Each subsequent FLAC audio frame goes into its own packet.
- *
- * WATCHOUT:
- * This depends on the behavior of FLAC__StreamEncoder that we get a
- * separate write callback for the fLaC magic, and then separate write
- * callbacks for each metadata block and audio frame.
- */
-FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data)
-{
- /* WATCHOUT:
- * This depends on the behavior of FLAC__StreamEncoder that 'samples'
- * will be 0 for metadata writes.
- */
- const FLAC__bool is_metadata = (samples == 0);
-
- /*
- * Treat fLaC magic packet specially. We will note when we see it, then
- * wait until we get the STREAMINFO and prepend it in that packet
- */
- if(aspect->seen_magic) {
- ogg_packet packet;
- FLAC__byte synthetic_first_packet_body[
- FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
- FLAC__OGG_MAPPING_MAGIC_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
- FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
- FLAC__STREAM_SYNC_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- FLAC__STREAM_METADATA_STREAMINFO_LENGTH
- ];
-
- memset(&packet, 0, sizeof(packet));
- packet.granulepos = aspect->samples_written + samples;
-
- if(aspect->is_first_packet) {
- FLAC__byte *b = synthetic_first_packet_body;
- if(bytes != FLAC__STREAM_METADATA_HEADER_LENGTH + FLAC__STREAM_METADATA_STREAMINFO_LENGTH) {
- /*
- * If we get here, our assumption about the way write callbacks happen
- * (explained above) is wrong
- */
- FLAC__ASSERT(0);
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
- /* add first header packet type */
- *b = FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE;
- b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
- /* add 'FLAC' mapping magic */
- memcpy(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH);
- b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
- /* add Ogg FLAC mapping major version number */
- memcpy(b, &FLAC__OGG_MAPPING_VERSION_MAJOR, FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH);
- b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
- /* add Ogg FLAC mapping minor version number */
- memcpy(b, &FLAC__OGG_MAPPING_VERSION_MINOR, FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH);
- b += FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH;
- /* add number of header packets */
- *b = (FLAC__byte)(aspect->num_metadata >> 8);
- b++;
- *b = (FLAC__byte)(aspect->num_metadata);
- b++;
- /* add native FLAC 'fLaC' magic */
- memcpy(b, FLAC__STREAM_SYNC_STRING, FLAC__STREAM_SYNC_LENGTH);
- b += FLAC__STREAM_SYNC_LENGTH;
- /* add STREAMINFO */
- memcpy(b, buffer, bytes);
- FLAC__ASSERT(b + bytes - synthetic_first_packet_body == sizeof(synthetic_first_packet_body));
- packet.packet = (unsigned char *)synthetic_first_packet_body;
- packet.bytes = sizeof(synthetic_first_packet_body);
-
- packet.b_o_s = 1;
- aspect->is_first_packet = false;
- }
- else {
- packet.packet = (unsigned char *)buffer;
- packet.bytes = bytes;
- }
-
- if(is_last_block) {
- /* we used to check:
- * FLAC__ASSERT(total_samples_estimate == 0 || total_samples_estimate == aspect->samples_written + samples);
- * but it's really not useful since total_samples_estimate is an estimate and can be inexact
- */
- packet.e_o_s = 1;
- }
-
- if(ogg_stream_packetin(&aspect->stream_state, &packet) != 0)
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
-
- /*@@@ can't figure out a way to pass a useful number for 'samples' to the write_callback, so we'll just pass 0 */
- if(is_metadata) {
- while(ogg_stream_flush(&aspect->stream_state, &aspect->page) != 0) {
- if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- if(write_callback(encoder, aspect->page.body, aspect->page.body_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
- }
- else {
- while(ogg_stream_pageout(&aspect->stream_state, &aspect->page) != 0) {
- if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- if(write_callback(encoder, aspect->page.body, aspect->page.body_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
- }
- }
- else if(is_metadata && current_frame == 0 && samples == 0 && bytes == 4 && 0 == memcmp(buffer, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING))) {
- aspect->seen_magic = true;
- }
- else {
- /*
- * If we get here, our assumption about the way write callbacks happen
- * explained above is wrong
- */
- FLAC__ASSERT(0);
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
-
- aspect->samples_written += samples;
-
- return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcmp(), memcpy() */
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-#include "private/ogg_helper.h"
-#include "protected/stream_encoder.h"
-
-
-static FLAC__bool full_read_(FLAC__StreamEncoder *encoder, FLAC__byte *buffer, size_t bytes, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
-{
- while(bytes > 0) {
- size_t bytes_read = bytes;
- switch(read_callback(encoder, buffer, &bytes_read, client_data)) {
- case FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE:
- bytes -= bytes_read;
- buffer += bytes_read;
- break;
- case FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM:
- if(bytes_read == 0) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return false;
- }
- bytes -= bytes_read;
- buffer += bytes_read;
- break;
- case FLAC__STREAM_ENCODER_READ_STATUS_ABORT:
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- case FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED:
- return false;
- default:
- /* double protection: */
- FLAC__ASSERT(0);
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
- }
-
- return true;
-}
-
-void simple_ogg_page__init(ogg_page *page)
-{
- page->header = 0;
- page->header_len = 0;
- page->body = 0;
- page->body_len = 0;
-}
-
-void simple_ogg_page__clear(ogg_page *page)
-{
- if(page->header)
- free(page->header);
- if(page->body)
- free(page->body);
- simple_ogg_page__init(page);
-}
-
-FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
-{
- static const unsigned OGG_HEADER_FIXED_PORTION_LEN = 27;
- static const unsigned OGG_MAX_HEADER_LEN = 27/*OGG_HEADER_FIXED_PORTION_LEN*/ + 255;
- FLAC__byte crc[4];
- FLAC__StreamEncoderSeekStatus seek_status;
-
- FLAC__ASSERT(page->header == 0);
- FLAC__ASSERT(page->header_len == 0);
- FLAC__ASSERT(page->body == 0);
- FLAC__ASSERT(page->body_len == 0);
-
- /* move the stream pointer to the supposed beginning of the page */
- if(0 == seek_callback)
- return false;
- if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
-
- /* allocate space for the page header */
- if(0 == (page->header = safe_malloc_(OGG_MAX_HEADER_LEN))) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /* read in the fixed part of the page header (up to but not including
- * the segment table */
- if(!full_read_(encoder, page->header, OGG_HEADER_FIXED_PORTION_LEN, read_callback, client_data))
- return false;
-
- page->header_len = OGG_HEADER_FIXED_PORTION_LEN + page->header[26];
-
- /* check to see if it's a correct, "simple" page (one packet only) */
- if(
- memcmp(page->header, "OggS", 4) || /* doesn't start with OggS */
- (page->header[5] & 0x01) || /* continued packet */
- memcmp(page->header+6, "\0\0\0\0\0\0\0\0", 8) || /* granulepos is non-zero */
- page->header[26] == 0 /* packet is 0-size */
- ) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return false;
- }
-
- /* read in the segment table */
- if(!full_read_(encoder, page->header + OGG_HEADER_FIXED_PORTION_LEN, page->header[26], read_callback, client_data))
- return false;
-
- {
- unsigned i;
-
- /* check to see that it specifies a single packet */
- for(i = 0; i < (unsigned)page->header[26] - 1; i++) {
- if(page->header[i + OGG_HEADER_FIXED_PORTION_LEN] != 255) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return false;
- }
- }
-
- page->body_len = 255 * i + page->header[i + OGG_HEADER_FIXED_PORTION_LEN];
- }
-
- /* allocate space for the page body */
- if(0 == (page->body = safe_malloc_(page->body_len))) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /* read in the page body */
- if(!full_read_(encoder, page->body, page->body_len, read_callback, client_data))
- return false;
-
- /* check the CRC */
- memcpy(crc, page->header+22, 4);
- ogg_page_checksum_set(page);
- if(memcmp(crc, page->header+22, 4)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return false;
- }
-
- return true;
-}
-
-FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data)
-{
- FLAC__StreamEncoderSeekStatus seek_status;
-
- FLAC__ASSERT(page->header != 0);
- FLAC__ASSERT(page->header_len != 0);
- FLAC__ASSERT(page->body != 0);
- FLAC__ASSERT(page->body_len != 0);
-
- /* move the stream pointer to the supposed beginning of the page */
- if(0 == seek_callback)
- return false;
- if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
-
- ogg_page_checksum_set(page);
-
- /* re-write the page */
- if(write_callback((FLAC__StreamEncoder*)encoder, page->header, page->header_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
- if(write_callback((FLAC__StreamEncoder*)encoder, page->body, page->body_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
-
- return true;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec
- * Copyright (C) 2004-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/ogg_mapping.h"
-
-const unsigned FLAC__OGG_MAPPING_PACKET_TYPE_LEN = 8; /* bits */
-
-const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE = 0x7f;
-
-const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC = (const FLAC__byte * const)"FLAC";
-
-const unsigned FLAC__OGG_MAPPING_VERSION_MAJOR_LEN = 8; /* bits */
-const unsigned FLAC__OGG_MAPPING_VERSION_MINOR_LEN = 8; /* bits */
-
-const unsigned FLAC__OGG_MAPPING_NUM_HEADERS_LEN = 16; /* bits */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memset/memcpy() */
-#include <sys/stat.h> /* for stat() */
-#include <sys/types.h> /* for off_t */
-#include "share/compat.h"
-#include "FLAC/assert.h"
-#include "share/alloc.h"
-#include "protected/stream_decoder.h"
-#include "private/bitreader.h"
-#include "private/bitmath.h"
-#include "private/cpu.h"
-#include "private/crc.h"
-#include "private/fixed.h"
-#include "private/format.h"
-#include "private/lpc.h"
-#include "private/md5.h"
-#include "private/memory.h"
-#include "private/macros.h"
-
-
-/* technically this should be in an "export.c" but this is convenient enough */
-FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC = FLAC__HAS_OGG;
-
-
-/***********************************************************************
- *
- * Private static data
- *
- ***********************************************************************/
-
-static const FLAC__byte ID3V2_TAG_[3] = { 'I', 'D', '3' };
-
-/***********************************************************************
- *
- * Private class method prototypes
- *
- ***********************************************************************/
-
-static void set_defaults_(FLAC__StreamDecoder *decoder);
-static FILE *get_binary_stdin_(void);
-static FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels);
-static FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id);
-static FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
-static FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length);
-static FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj, unsigned length);
-static FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj);
-static FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj);
-static FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder);
-static FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode);
-static FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode);
-static FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode);
-static FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended);
-static FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder);
-static FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data);
-#if FLAC__HAS_OGG
-static FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes);
-static FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-#endif
-static FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
-static void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status);
-static FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
-#if FLAC__HAS_OGG
-static FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
-#endif
-static FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-static FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-static FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
-static FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data);
-
-/***********************************************************************
- *
- * Private class data
- *
- ***********************************************************************/
-
-typedef struct FLAC__StreamDecoderPrivate {
- FLAC__bool is_ogg;
- FLAC__StreamDecoderReadCallback read_callback;
- FLAC__StreamDecoderSeekCallback seek_callback;
- FLAC__StreamDecoderTellCallback tell_callback;
- FLAC__StreamDecoderLengthCallback length_callback;
- FLAC__StreamDecoderEofCallback eof_callback;
- FLAC__StreamDecoderWriteCallback write_callback;
- FLAC__StreamDecoderMetadataCallback metadata_callback;
- FLAC__StreamDecoderErrorCallback error_callback;
- /* generic 32-bit datapath: */
- void (*local_lpc_restore_signal)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- /* generic 64-bit datapath: */
- void (*local_lpc_restore_signal_64bit)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- /* for use when the signal is <= 16 bits-per-sample, or <= 15 bits-per-sample on a side channel (which requires 1 extra bit): */
- void (*local_lpc_restore_signal_16bit)(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[]);
- void *client_data;
- FILE *file; /* only used if FLAC__stream_decoder_init_file()/FLAC__stream_decoder_init_file() called, else NULL */
- FLAC__BitReader *input;
- FLAC__int32 *output[FLAC__MAX_CHANNELS];
- FLAC__int32 *residual[FLAC__MAX_CHANNELS]; /* WATCHOUT: these are the aligned pointers; the real pointers that should be free()'d are residual_unaligned[] below */
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents[FLAC__MAX_CHANNELS];
- unsigned output_capacity, output_channels;
- FLAC__uint32 fixed_block_size, next_fixed_block_size;
- FLAC__uint64 samples_decoded;
- FLAC__bool has_stream_info, has_seek_table;
- FLAC__StreamMetadata stream_info;
- FLAC__StreamMetadata seek_table;
- FLAC__bool metadata_filter[128]; /* MAGIC number 128 == total number of metadata block types == 1 << 7 */
- FLAC__byte *metadata_filter_ids;
- size_t metadata_filter_ids_count, metadata_filter_ids_capacity; /* units for both are IDs, not bytes */
- FLAC__Frame frame;
- FLAC__bool cached; /* true if there is a byte in lookahead */
- FLAC__CPUInfo cpuinfo;
- FLAC__byte header_warmup[2]; /* contains the sync code and reserved bits */
- FLAC__byte lookahead; /* temp storage when we need to look ahead one byte in the stream */
- /* unaligned (original) pointers to allocated data */
- FLAC__int32 *residual_unaligned[FLAC__MAX_CHANNELS];
- FLAC__bool do_md5_checking; /* initially gets protected_->md5_checking but is turned off after a seek or if the metadata has a zero MD5 */
- FLAC__bool internal_reset_hack; /* used only during init() so we can call reset to set up the decoder without rewinding the input */
- FLAC__bool is_seeking;
- FLAC__MD5Context md5context;
- FLAC__byte computed_md5sum[16]; /* this is the sum we computed from the decoded data */
- /* (the rest of these are only used for seeking) */
- FLAC__Frame last_frame; /* holds the info of the last frame we seeked to */
- FLAC__uint64 first_frame_offset; /* hint to the seek routine of where in the stream the first audio frame starts */
- FLAC__uint64 target_sample;
- unsigned unparseable_frame_count; /* used to tell whether we're decoding a future version of FLAC or just got a bad sync */
- FLAC__bool got_a_frame; /* hack needed in Ogg FLAC seek routine to check when process_single() actually writes a frame */
-} FLAC__StreamDecoderPrivate;
-
-/***********************************************************************
- *
- * Public static class data
- *
- ***********************************************************************/
-
-FLAC_API const char * const FLAC__StreamDecoderStateString[] = {
- "FLAC__STREAM_DECODER_SEARCH_FOR_METADATA",
- "FLAC__STREAM_DECODER_READ_METADATA",
- "FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC",
- "FLAC__STREAM_DECODER_READ_FRAME",
- "FLAC__STREAM_DECODER_END_OF_STREAM",
- "FLAC__STREAM_DECODER_OGG_ERROR",
- "FLAC__STREAM_DECODER_SEEK_ERROR",
- "FLAC__STREAM_DECODER_ABORTED",
- "FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
- "FLAC__STREAM_DECODER_UNINITIALIZED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderInitStatusString[] = {
- "FLAC__STREAM_DECODER_INIT_STATUS_OK",
- "FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
- "FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS",
- "FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE",
- "FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderReadStatusString[] = {
- "FLAC__STREAM_DECODER_READ_STATUS_CONTINUE",
- "FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM",
- "FLAC__STREAM_DECODER_READ_STATUS_ABORT"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[] = {
- "FLAC__STREAM_DECODER_SEEK_STATUS_OK",
- "FLAC__STREAM_DECODER_SEEK_STATUS_ERROR",
- "FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderTellStatusString[] = {
- "FLAC__STREAM_DECODER_TELL_STATUS_OK",
- "FLAC__STREAM_DECODER_TELL_STATUS_ERROR",
- "FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[] = {
- "FLAC__STREAM_DECODER_LENGTH_STATUS_OK",
- "FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR",
- "FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[] = {
- "FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE",
- "FLAC__STREAM_DECODER_WRITE_STATUS_ABORT"
-};
-
-FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[] = {
- "FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC",
- "FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER",
- "FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH",
- "FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM"
-};
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- ***********************************************************************/
-FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void)
-{
- FLAC__StreamDecoder *decoder;
- unsigned i;
-
- FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
-
- decoder = calloc(1, sizeof(FLAC__StreamDecoder));
- if(decoder == 0) {
- return 0;
- }
-
- decoder->protected_ = calloc(1, sizeof(FLAC__StreamDecoderProtected));
- if(decoder->protected_ == 0) {
- free(decoder);
- return 0;
- }
-
- decoder->private_ = calloc(1, sizeof(FLAC__StreamDecoderPrivate));
- if(decoder->private_ == 0) {
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- decoder->private_->input = FLAC__bitreader_new();
- if(decoder->private_->input == 0) {
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- decoder->private_->metadata_filter_ids_capacity = 16;
- if(0 == (decoder->private_->metadata_filter_ids = malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
- FLAC__bitreader_delete(decoder->private_->input);
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
- return 0;
- }
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- decoder->private_->output[i] = 0;
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
-
- decoder->private_->output_capacity = 0;
- decoder->private_->output_channels = 0;
- decoder->private_->has_seek_table = false;
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&decoder->private_->partitioned_rice_contents[i]);
-
- decoder->private_->file = 0;
-
- set_defaults_(decoder);
-
- decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
-
- return decoder;
-}
-
-FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
-{
- unsigned i;
-
- if (decoder == NULL)
- return ;
-
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->private_->input);
-
- (void)FLAC__stream_decoder_finish(decoder);
-
- if(0 != decoder->private_->metadata_filter_ids)
- free(decoder->private_->metadata_filter_ids);
-
- FLAC__bitreader_delete(decoder->private_->input);
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&decoder->private_->partitioned_rice_contents[i]);
-
- free(decoder->private_);
- free(decoder->protected_);
- free(decoder);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-static FLAC__StreamDecoderInitStatus init_stream_internal_(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__ASSERT(0 != decoder);
-
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(FLAC__HAS_OGG == 0 && is_ogg)
- return FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
-
- if(
- 0 == read_callback ||
- 0 == write_callback ||
- 0 == error_callback ||
- (seek_callback && (0 == tell_callback || 0 == length_callback || 0 == eof_callback))
- )
- return FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg = is_ogg;
- if(is_ogg && !FLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect))
- return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
-#endif
-
- /*
- * get the CPU info and set the function pointers
- */
- FLAC__cpu_info(&decoder->private_->cpuinfo);
- /* first default to the non-asm routines */
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
- decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
- /* now override with asm where appropriate */
-#ifndef FLAC__NO_ASM
- if(decoder->private_->cpuinfo.use_asm) {
-#ifdef FLAC__CPU_IA32
- FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
-#ifdef FLAC__HAS_NASM
- decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide_asm_ia32; /* OPT_IA32: was really necessary for GCC < 4.9 */
- if(decoder->private_->cpuinfo.ia32.mmx) {
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
- }
- else {
- decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
- }
-#endif
-#if FLAC__HAS_X86INTRIN && ! defined FLAC__INTEGER_ONLY_LIBRARY
-# if defined FLAC__SSE2_SUPPORTED && !defined FLAC__HAS_NASM /* OPT_SSE: not better than MMX asm */
- if(decoder->private_->cpuinfo.ia32.sse2) {
- decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_16_intrin_sse2;
- }
-# endif
-# if defined FLAC__SSE4_1_SUPPORTED
- if(decoder->private_->cpuinfo.ia32.sse41) {
- decoder->private_->local_lpc_restore_signal_64bit = FLAC__lpc_restore_signal_wide_intrin_sse41;
- }
-# endif
-#endif
-#elif defined FLAC__CPU_X86_64
- FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_X86_64);
- /* No useful SSE optimizations yet */
-#endif
- }
-#endif
-
- /* from here on, errors are fatal */
-
- if(!FLAC__bitreader_init(decoder->private_->input, read_callback_, decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
- }
-
- decoder->private_->read_callback = read_callback;
- decoder->private_->seek_callback = seek_callback;
- decoder->private_->tell_callback = tell_callback;
- decoder->private_->length_callback = length_callback;
- decoder->private_->eof_callback = eof_callback;
- decoder->private_->write_callback = write_callback;
- decoder->private_->metadata_callback = metadata_callback;
- decoder->private_->error_callback = error_callback;
- decoder->private_->client_data = client_data;
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
- decoder->private_->samples_decoded = 0;
- decoder->private_->has_stream_info = false;
- decoder->private_->cached = false;
-
- decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
- decoder->private_->is_seeking = false;
-
- decoder->private_->internal_reset_hack = true; /* so the following reset does not try to rewind the input */
- if(!FLAC__stream_decoder_reset(decoder)) {
- /* above call sets the state for us */
- return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
- }
-
- return FLAC__STREAM_DECODER_INIT_STATUS_OK;
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- decoder,
- read_callback,
- seek_callback,
- tell_callback,
- length_callback,
- eof_callback,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- /*is_ogg=*/false
- );
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
- FLAC__StreamDecoder *decoder,
- FLAC__StreamDecoderReadCallback read_callback,
- FLAC__StreamDecoderSeekCallback seek_callback,
- FLAC__StreamDecoderTellCallback tell_callback,
- FLAC__StreamDecoderLengthCallback length_callback,
- FLAC__StreamDecoderEofCallback eof_callback,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- decoder,
- read_callback,
- seek_callback,
- tell_callback,
- length_callback,
- eof_callback,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- /*is_ogg=*/true
- );
-}
-
-static FLAC__StreamDecoderInitStatus init_FILE_internal_(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != file);
-
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(0 == write_callback || 0 == error_callback)
- return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * must assign the FILE pointer before any further error can occur in
- * this routine.
- */
- if(file == stdin)
- file = get_binary_stdin_(); /* just to be safe */
-
- decoder->private_->file = file;
-
- return init_stream_internal_(
- decoder,
- file_read_callback_,
- decoder->private_->file == stdin? 0: file_seek_callback_,
- decoder->private_->file == stdin? 0: file_tell_callback_,
- decoder->private_->file == stdin? 0: file_length_callback_,
- file_eof_callback_,
- write_callback,
- metadata_callback,
- error_callback,
- client_data,
- is_ogg
- );
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
- FLAC__StreamDecoder *decoder,
- FILE *file,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
-}
-
-static FLAC__StreamDecoderInitStatus init_file_internal_(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FILE *file;
-
- FLAC__ASSERT(0 != decoder);
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * have to do the same entrance checks here that are later performed
- * in FLAC__stream_decoder_init_FILE() before the FILE* is assigned.
- */
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(0 == write_callback || 0 == error_callback)
- return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
-
- file = filename? flac_fopen(filename, "rb") : stdin;
-
- if(0 == file)
- return FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
-
- return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, is_ogg);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
- FLAC__StreamDecoder *decoder,
- const char *filename,
- FLAC__StreamDecoderWriteCallback write_callback,
- FLAC__StreamDecoderMetadataCallback metadata_callback,
- FLAC__StreamDecoderErrorCallback error_callback,
- void *client_data
-)
-{
- return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool md5_failed = false;
- unsigned i;
-
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
- return true;
-
- /* see the comment in FLAC__stream_decoder_reset() as to why we
- * always call FLAC__MD5Final()
- */
- FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
-
- free(decoder->private_->seek_table.data.seek_table.points);
- decoder->private_->seek_table.data.seek_table.points = 0;
- decoder->private_->has_seek_table = false;
-
- FLAC__bitreader_free(decoder->private_->input);
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- /* WATCHOUT:
- * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
- * output arrays have a buffer of up to 3 zeroes in front
- * (at negative indices) for alignment purposes; we use 4
- * to keep the data well-aligned.
- */
- if(0 != decoder->private_->output[i]) {
- free(decoder->private_->output[i]-4);
- decoder->private_->output[i] = 0;
- }
- if(0 != decoder->private_->residual_unaligned[i]) {
- free(decoder->private_->residual_unaligned[i]);
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
- }
- decoder->private_->output_capacity = 0;
- decoder->private_->output_channels = 0;
-
-#if FLAC__HAS_OGG
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- if(0 != decoder->private_->file) {
- if(decoder->private_->file != stdin)
- fclose(decoder->private_->file);
- decoder->private_->file = 0;
- }
-
- if(decoder->private_->do_md5_checking) {
- if(memcmp(decoder->private_->stream_info.data.stream_info.md5sum, decoder->private_->computed_md5sum, 16))
- md5_failed = true;
- }
- decoder->private_->is_seeking = false;
-
- set_defaults_(decoder);
-
- decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
-
- return !md5_failed;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long value)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-#if FLAC__HAS_OGG
- /* can't check decoder->private_->is_ogg since that's not set until init time */
- FLAC__ogg_decoder_aspect_set_serial_number(&decoder->protected_->ogg_decoder_aspect, value);
- return true;
-#else
- (void)value;
- return false;
-#endif
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->protected_->md5_checking = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT((unsigned)type <= FLAC__MAX_METADATA_TYPE_CODE);
- /* double protection */
- if((unsigned)type > FLAC__MAX_METADATA_TYPE_CODE)
- return false;
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->private_->metadata_filter[type] = true;
- if(type == FLAC__METADATA_TYPE_APPLICATION)
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != id);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-
- if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
- return true;
-
- FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
-
- if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->private_->metadata_filter_ids_capacity *= 2;
- }
-
- memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
- decoder->private_->metadata_filter_ids_count++;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
-{
- unsigned i;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
- decoder->private_->metadata_filter[i] = true;
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT((unsigned)type <= FLAC__MAX_METADATA_TYPE_CODE);
- /* double protection */
- if((unsigned)type > FLAC__MAX_METADATA_TYPE_CODE)
- return false;
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- decoder->private_->metadata_filter[type] = false;
- if(type == FLAC__METADATA_TYPE_APPLICATION)
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- FLAC__ASSERT(0 != id);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-
- if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
- return true;
-
- FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
-
- if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
- if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->private_->metadata_filter_ids_capacity *= 2;
- }
-
- memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
- decoder->private_->metadata_filter_ids_count++;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
- if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
- memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
- decoder->private_->metadata_filter_ids_count = 0;
- return true;
-}
-
-FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->state;
-}
-
-FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder)
-{
- return FLAC__StreamDecoderStateString[decoder->protected_->state];
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->md5_checking;
-}
-
-FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->private_->has_stream_info? decoder->private_->stream_info.data.stream_info.total_samples : 0;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->channels;
-}
-
-FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->channel_assignment;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->bits_per_sample;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->sample_rate;
-}
-
-FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
- return decoder->protected_->blocksize;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != position);
-
- if(FLAC__HAS_OGG && decoder->private_->is_ogg)
- return false;
-
- if(0 == decoder->private_->tell_callback)
- return false;
- if(decoder->private_->tell_callback(decoder, position, decoder->private_->client_data) != FLAC__STREAM_DECODER_TELL_STATUS_OK)
- return false;
- /* should never happen since all FLAC frames and metadata blocks are byte aligned, but check just in case */
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input))
- return false;
- FLAC__ASSERT(*position >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder));
- *position -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- if(!decoder->private_->internal_reset_hack && decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
- return false;
-
- decoder->private_->samples_decoded = 0;
- decoder->private_->do_md5_checking = false;
-
-#if FLAC__HAS_OGG
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- if(!FLAC__bitreader_clear(decoder->private_->input)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
- FLAC__ASSERT(0 != decoder->protected_);
-
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
-
-#if FLAC__HAS_OGG
- /*@@@ could go in !internal_reset_hack block below */
- if(decoder->private_->is_ogg)
- FLAC__ogg_decoder_aspect_reset(&decoder->protected_->ogg_decoder_aspect);
-#endif
-
- /* Rewind if necessary. If FLAC__stream_decoder_init() is calling us,
- * (internal_reset_hack) don't try to rewind since we are already at
- * the beginning of the stream and don't want to fail if the input is
- * not seekable.
- */
- if(!decoder->private_->internal_reset_hack) {
- if(decoder->private_->file == stdin)
- return false; /* can't rewind stdin, reset fails */
- if(decoder->private_->seek_callback && decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
- return false; /* seekable and seek fails, reset fails */
- }
- else
- decoder->private_->internal_reset_hack = false;
-
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
-
- decoder->private_->has_stream_info = false;
-
- free(decoder->private_->seek_table.data.seek_table.points);
- decoder->private_->seek_table.data.seek_table.points = 0;
- decoder->private_->has_seek_table = false;
-
- decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
- /*
- * This goes in reset() and not flush() because according to the spec, a
- * fixed-blocksize stream must stay that way through the whole stream.
- */
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
-
- /* We initialize the FLAC__MD5Context even though we may never use it. This
- * is because md5 checking may be turned on to start and then turned off if
- * a seek occurs. So we init the context here and finalize it in
- * FLAC__stream_decoder_finish() to make sure things are always cleaned up
- * properly.
- */
- FLAC__MD5Init(&decoder->private_->md5context);
-
- decoder->private_->first_frame_offset = 0;
- decoder->private_->unparseable_frame_count = 0;
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool got_a_frame;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- else
- return true;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/true))
- return false; /* above function sets the status for us */
- if(got_a_frame)
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- case FLAC__STREAM_DECODER_READ_FRAME:
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool dummy;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- if(!find_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_METADATA:
- if(!read_metadata_(decoder))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &dummy, /*do_full_decode=*/true))
- return false; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool got_a_frame;
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->protected_);
-
- while(1) {
- switch(decoder->protected_->state) {
- case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
- case FLAC__STREAM_DECODER_READ_METADATA:
- return false; /* above function sets the status for us */
- case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
- if(!frame_sync_(decoder))
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_READ_FRAME:
- if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/false))
- return false; /* above function sets the status for us */
- if(got_a_frame)
- return true; /* above function sets the status for us */
- break;
- case FLAC__STREAM_DECODER_END_OF_STREAM:
- case FLAC__STREAM_DECODER_ABORTED:
- return true;
- default:
- FLAC__ASSERT(0);
- return false;
- }
- }
-}
-
-FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample)
-{
- FLAC__uint64 length;
-
- FLAC__ASSERT(0 != decoder);
-
- if(
- decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA &&
- decoder->protected_->state != FLAC__STREAM_DECODER_READ_METADATA &&
- decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC &&
- decoder->protected_->state != FLAC__STREAM_DECODER_READ_FRAME &&
- decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM
- )
- return false;
-
- if(0 == decoder->private_->seek_callback)
- return false;
-
- FLAC__ASSERT(decoder->private_->seek_callback);
- FLAC__ASSERT(decoder->private_->tell_callback);
- FLAC__ASSERT(decoder->private_->length_callback);
- FLAC__ASSERT(decoder->private_->eof_callback);
-
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder))
- return false;
-
- decoder->private_->is_seeking = true;
-
- /* turn off md5 checking if a seek is attempted */
- decoder->private_->do_md5_checking = false;
-
- /* get the file length (currently our algorithm needs to know the length so it's also an error to get FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED) */
- if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__STREAM_DECODER_LENGTH_STATUS_OK) {
- decoder->private_->is_seeking = false;
- return false;
- }
-
- /* if we haven't finished processing the metadata yet, do that so we have the STREAMINFO, SEEK_TABLE, and first_frame_offset */
- if(
- decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA ||
- decoder->protected_->state == FLAC__STREAM_DECODER_READ_METADATA
- ) {
- if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder)) {
- /* above call sets the state for us */
- decoder->private_->is_seeking = false;
- return false;
- }
- /* check this again in case we didn't know total_samples the first time */
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder)) {
- decoder->private_->is_seeking = false;
- return false;
- }
- }
-
- {
- const FLAC__bool ok =
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg?
- seek_to_absolute_sample_ogg_(decoder, length, sample) :
-#endif
- seek_to_absolute_sample_(decoder, length, sample)
- ;
- decoder->private_->is_seeking = false;
- return ok;
- }
-}
-
-/***********************************************************************
- *
- * Protected class methods
- *
- ***********************************************************************/
-
-unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
-{
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
- FLAC__ASSERT(!(FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) & 7));
- return FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) / 8;
-}
-
-/***********************************************************************
- *
- * Private class methods
- *
- ***********************************************************************/
-
-void set_defaults_(FLAC__StreamDecoder *decoder)
-{
- decoder->private_->is_ogg = false;
- decoder->private_->read_callback = 0;
- decoder->private_->seek_callback = 0;
- decoder->private_->tell_callback = 0;
- decoder->private_->length_callback = 0;
- decoder->private_->eof_callback = 0;
- decoder->private_->write_callback = 0;
- decoder->private_->metadata_callback = 0;
- decoder->private_->error_callback = 0;
- decoder->private_->client_data = 0;
-
- memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
- decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
- decoder->private_->metadata_filter_ids_count = 0;
-
- decoder->protected_->md5_checking = false;
-
-#if FLAC__HAS_OGG
- FLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect);
-#endif
-}
-
-/*
- * This will forcibly set stdin to binary mode (for OSes that require it)
- */
-FILE *get_binary_stdin_(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdin), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdin), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdin), O_BINARY);
-#endif
-
- return stdin;
-}
-
-FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, unsigned size, unsigned channels)
-{
- unsigned i;
- FLAC__int32 *tmp;
-
- if(size <= decoder->private_->output_capacity && channels <= decoder->private_->output_channels)
- return true;
-
- /* simply using realloc() is not practical because the number of channels may change mid-stream */
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- if(0 != decoder->private_->output[i]) {
- free(decoder->private_->output[i]-4);
- decoder->private_->output[i] = 0;
- }
- if(0 != decoder->private_->residual_unaligned[i]) {
- free(decoder->private_->residual_unaligned[i]);
- decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
- }
- }
-
- for(i = 0; i < channels; i++) {
- /* WATCHOUT:
- * FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the
- * output arrays have a buffer of up to 3 zeroes in front
- * (at negative indices) for alignment purposes; we use 4
- * to keep the data well-aligned.
- */
- tmp = safe_malloc_muladd2_(sizeof(FLAC__int32), /*times (*/size, /*+*/4/*)*/);
- if(tmp == 0) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- memset(tmp, 0, sizeof(FLAC__int32)*4);
- decoder->private_->output[i] = tmp + 4;
-
- if(!FLAC__memory_alloc_aligned_int32_array(size, &decoder->private_->residual_unaligned[i], &decoder->private_->residual[i])) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- }
-
- decoder->private_->output_capacity = size;
- decoder->private_->output_channels = channels;
-
- return true;
-}
-
-FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id)
-{
- size_t i;
-
- FLAC__ASSERT(0 != decoder);
- FLAC__ASSERT(0 != decoder->private_);
-
- for(i = 0; i < decoder->private_->metadata_filter_ids_count; i++)
- if(0 == memcmp(decoder->private_->metadata_filter_ids + i * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)))
- return true;
-
- return false;
-}
-
-FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- unsigned i, id;
- FLAC__bool first = true;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- for(i = id = 0; i < 4; ) {
- if(decoder->private_->cached) {
- x = (FLAC__uint32)decoder->private_->lookahead;
- decoder->private_->cached = false;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- }
- if(x == FLAC__STREAM_SYNC_STRING[i]) {
- first = true;
- i++;
- id = 0;
- continue;
- }
-
- if(id >= 3)
- return false;
-
- if(x == ID3V2_TAG_[id]) {
- id++;
- i = 0;
- if(id == 3) {
- if(!skip_id3v2_tag_(decoder))
- return false; /* skip_id3v2_tag_ sets the state for us */
- }
- continue;
- }
- id = 0;
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->header_warmup[0] = (FLAC__byte)x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
-
- /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
- /* else we have to check if the second byte is the end of a sync code */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- }
- else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
- decoder->private_->header_warmup[1] = (FLAC__byte)x;
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
- return true;
- }
- }
- i = 0;
- if(first) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- first = false;
- }
- }
-
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_METADATA;
- return true;
-}
-
-FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder)
-{
- FLAC__bool is_last;
- FLAC__uint32 i, x, type, length;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_IS_LAST_LEN))
- return false; /* read_callback_ sets the state for us */
- is_last = x? true : false;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &type, FLAC__STREAM_METADATA_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &length, FLAC__STREAM_METADATA_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(type == FLAC__METADATA_TYPE_STREAMINFO) {
- if(!read_metadata_streaminfo_(decoder, is_last, length))
- return false;
-
- decoder->private_->has_stream_info = true;
- if(0 == memcmp(decoder->private_->stream_info.data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
- decoder->private_->do_md5_checking = false;
- if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &decoder->private_->stream_info, decoder->private_->client_data);
- }
- else if(type == FLAC__METADATA_TYPE_SEEKTABLE) {
- /* just in case we already have a seek table, and reading the next one fails: */
- decoder->private_->has_seek_table = false;
-
- if(!read_metadata_seektable_(decoder, is_last, length))
- return false;
-
- decoder->private_->has_seek_table = true;
- if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_SEEKTABLE] && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &decoder->private_->seek_table, decoder->private_->client_data);
- }
- else {
- FLAC__bool skip_it = !decoder->private_->metadata_filter[type];
- unsigned real_length = length;
- FLAC__StreamMetadata block;
-
- memset(&block, 0, sizeof(block));
- block.is_last = is_last;
- block.type = (FLAC__MetadataType)type;
- block.length = length;
-
- if(type == FLAC__METADATA_TYPE_APPLICATION) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(real_length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) { /* underflow check */
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;/*@@@@@@ maybe wrong error? need to resync?*/
- return false;
- }
-
- real_length -= FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8;
-
- if(decoder->private_->metadata_filter_ids_count > 0 && has_id_filtered_(decoder, block.data.application.id))
- skip_it = !skip_it;
- }
-
- if(skip_it) {
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
- return false; /* read_callback_ sets the state for us */
- }
- else {
- FLAC__bool ok = true;
- switch(type) {
- case FLAC__METADATA_TYPE_PADDING:
- /* skip the padding bytes */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
- ok = false; /* read_callback_ sets the state for us */
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- /* remember, we read the ID already */
- if(real_length > 0) {
- if(0 == (block.data.application.data = malloc(real_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- ok = false;
- }
- else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.data, real_length))
- ok = false; /* read_callback_ sets the state for us */
- }
- else
- block.data.application.data = 0;
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(!read_metadata_vorbiscomment_(decoder, &block.data.vorbis_comment, real_length))
- ok = false;
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if(!read_metadata_cuesheet_(decoder, &block.data.cue_sheet))
- ok = false;
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if(!read_metadata_picture_(decoder, &block.data.picture))
- ok = false;
- break;
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_SEEKTABLE:
- FLAC__ASSERT(0);
- break;
- default:
- if(real_length > 0) {
- if(0 == (block.data.unknown.data = malloc(real_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- ok = false;
- }
- else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.unknown.data, real_length))
- ok = false; /* read_callback_ sets the state for us */
- }
- else
- block.data.unknown.data = 0;
- break;
- }
- if(ok && !decoder->private_->is_seeking && decoder->private_->metadata_callback)
- decoder->private_->metadata_callback(decoder, &block, decoder->private_->client_data);
-
- /* now we have to free any malloc()ed data in the block */
- switch(type) {
- case FLAC__METADATA_TYPE_PADDING:
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(0 != block.data.application.data)
- free(block.data.application.data);
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(0 != block.data.vorbis_comment.vendor_string.entry)
- free(block.data.vorbis_comment.vendor_string.entry);
- if(block.data.vorbis_comment.num_comments > 0)
- for(i = 0; i < block.data.vorbis_comment.num_comments; i++)
- if(0 != block.data.vorbis_comment.comments[i].entry)
- free(block.data.vorbis_comment.comments[i].entry);
- if(0 != block.data.vorbis_comment.comments)
- free(block.data.vorbis_comment.comments);
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- if(block.data.cue_sheet.num_tracks > 0)
- for(i = 0; i < block.data.cue_sheet.num_tracks; i++)
- if(0 != block.data.cue_sheet.tracks[i].indices)
- free(block.data.cue_sheet.tracks[i].indices);
- if(0 != block.data.cue_sheet.tracks)
- free(block.data.cue_sheet.tracks);
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- if(0 != block.data.picture.mime_type)
- free(block.data.picture.mime_type);
- if(0 != block.data.picture.description)
- free(block.data.picture.description);
- if(0 != block.data.picture.data)
- free(block.data.picture.data);
- break;
- case FLAC__METADATA_TYPE_STREAMINFO:
- case FLAC__METADATA_TYPE_SEEKTABLE:
- FLAC__ASSERT(0);
- default:
- if(0 != block.data.unknown.data)
- free(block.data.unknown.data);
- break;
- }
-
- if(!ok) /* anything that unsets "ok" should also make sure decoder->protected_->state is updated */
- return false;
- }
- }
-
- if(is_last) {
- /* if this fails, it's OK, it's just a hint for the seek routine */
- if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->first_frame_offset))
- decoder->private_->first_frame_offset = 0;
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
-{
- FLAC__uint32 x;
- unsigned bits, used_bits = 0;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
- decoder->private_->stream_info.is_last = is_last;
- decoder->private_->stream_info.length = length;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.min_blocksize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.max_blocksize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.min_framesize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.max_framesize = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.sample_rate = x;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.channels = x+1;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
- used_bits += bits;
-
- bits = FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN;
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &decoder->private_->stream_info.data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
- return false; /* read_callback_ sets the state for us */
- used_bits += bits;
-
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
- return false; /* read_callback_ sets the state for us */
- used_bits += 16*8;
-
- /* skip the rest of the block */
- FLAC__ASSERT(used_bits % 8 == 0);
- length -= (used_bits / 8);
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
- return false; /* read_callback_ sets the state for us */
-
- return true;
-}
-
-FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
-{
- FLAC__uint32 i, x;
- FLAC__uint64 xx;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- decoder->private_->seek_table.type = FLAC__METADATA_TYPE_SEEKTABLE;
- decoder->private_->seek_table.is_last = is_last;
- decoder->private_->seek_table.length = length;
-
- decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
-
- /* use realloc since we may pass through here several times (e.g. after seeking) */
- if(0 == (decoder->private_->seek_table.data.seek_table.points = safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(i = 0; i < decoder->private_->seek_table.data.seek_table.num_points; i++) {
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].sample_number = xx;
-
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].stream_offset = xx;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->seek_table.data.seek_table.points[i].frame_samples = x;
- }
- length -= (decoder->private_->seek_table.data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH);
- /* if there is a partial point left, skip over it */
- if(length > 0) {
- /*@@@ do a send_error_to_client_() here? there's an argument for either way */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
- return false; /* read_callback_ sets the state for us */
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj, unsigned length)
-{
- FLAC__uint32 i;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* read vendor string */
- if (length >= 8) {
- length -= 8; /* vendor string length + num comments entries alone take 8 bytes */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
- if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->vendor_string.length))
- return false; /* read_callback_ sets the state for us */
- if (obj->vendor_string.length > 0) {
- if (length < obj->vendor_string.length) {
- obj->vendor_string.length = 0;
- obj->vendor_string.entry = 0;
- goto skip;
- }
- else
- length -= obj->vendor_string.length;
- if (0 == (obj->vendor_string.entry = safe_malloc_add_2op_(obj->vendor_string.length, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if (!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->vendor_string.entry, obj->vendor_string.length))
- return false; /* read_callback_ sets the state for us */
- obj->vendor_string.entry[obj->vendor_string.length] = '\0';
- }
- else
- obj->vendor_string.entry = 0;
-
- /* read num comments */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN == 32);
- if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->num_comments))
- return false; /* read_callback_ sets the state for us */
-
- /* read comments */
- if (obj->num_comments > 100000) {
- /* Possibly malicious file. */
- obj->num_comments = 0;
- return false;
- }
- if (obj->num_comments > 0) {
- if (0 == (obj->comments = safe_malloc_mul_2op_p(obj->num_comments, /*times*/sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
- obj->num_comments = 0;
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for (i = 0; i < obj->num_comments; i++) {
- /* Initialize here just to make sure. */
- obj->comments[i].length = 0;
- obj->comments[i].entry = 0;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
- if (length < 4) {
- obj->num_comments = i;
- goto skip;
- }
- else
- length -= 4;
- if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->comments[i].length)) {
- obj->num_comments = i;
- return false; /* read_callback_ sets the state for us */
- }
- if (obj->comments[i].length > 0) {
- if (length < obj->comments[i].length) {
- obj->num_comments = i;
- goto skip;
- }
- else
- length -= obj->comments[i].length;
- if (0 == (obj->comments[i].entry = safe_malloc_add_2op_(obj->comments[i].length, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- obj->num_comments = i;
- return false;
- }
- memset (obj->comments[i].entry, 0, obj->comments[i].length) ;
- if (!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->comments[i].entry, obj->comments[i].length)) {
- obj->num_comments = i;
- goto skip;
- }
- obj->comments[i].entry[obj->comments[i].length] = '\0';
- }
- else
- obj->comments[i].entry = 0;
- }
- }
- }
-
- skip:
- if (length > 0) {
- /* length > 0 can only happen on files with invalid data in comments */
- if(obj->num_comments < 1) {
- free(obj->comments);
- obj->comments = NULL;
- }
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
- return false; /* read_callback_ sets the state for us */
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj)
-{
- FLAC__uint32 i, j, x;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- memset(obj, 0, sizeof(FLAC__StreamMetadata_CueSheet));
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &obj->lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->is_cd = x? true : false;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->num_tracks = x;
-
- if(obj->num_tracks > 0) {
- if(0 == (obj->tracks = safe_calloc_(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(i = 0; i < obj->num_tracks; i++) {
- FLAC__StreamMetadata_CueSheet_Track *track = &obj->tracks[i];
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- track->number = (FLAC__byte)x;
-
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- track->type = x;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
- return false; /* read_callback_ sets the state for us */
- track->pre_emphasis = x;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
- return false; /* read_callback_ sets the state for us */
- track->num_indices = (FLAC__byte)x;
-
- if(track->num_indices > 0) {
- if(0 == (track->indices = safe_calloc_(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- for(j = 0; j < track->num_indices; j++) {
- FLAC__StreamMetadata_CueSheet_Index *indx = &track->indices[j];
- if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
- return false; /* read_callback_ sets the state for us */
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
- return false; /* read_callback_ sets the state for us */
- indx->number = (FLAC__byte)x;
-
- if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
- return false; /* read_callback_ sets the state for us */
- }
- }
- }
- }
-
- return true;
-}
-
-FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj)
-{
- FLAC__uint32 x;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* read type */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- obj->type = x;
-
- /* read MIME type */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->mime_type = safe_malloc_add_2op_(x, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(x > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->mime_type, x))
- return false; /* read_callback_ sets the state for us */
- }
- obj->mime_type[x] = '\0';
-
- /* read description */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->description = safe_malloc_add_2op_(x, /*+*/1))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(x > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->description, x))
- return false; /* read_callback_ sets the state for us */
- }
- obj->description[x] = '\0';
-
- /* read width */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read height */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read depth */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read colors */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
- return false; /* read_callback_ sets the state for us */
-
- /* read data */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &(obj->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
- return false; /* read_callback_ sets the state for us */
- if(0 == (obj->data = safe_malloc_(obj->data_length))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- if(obj->data_length > 0) {
- if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->data, obj->data_length))
- return false; /* read_callback_ sets the state for us */
- }
-
- return true;
-}
-
-FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- unsigned i, skip;
-
- /* skip the version and flags bytes */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 24))
- return false; /* read_callback_ sets the state for us */
- /* get the size (in bytes) to skip */
- skip = 0;
- for(i = 0; i < 4; i++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- skip <<= 7;
- skip |= (x & 0x7f);
- }
- /* skip the rest of the tag */
- if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, skip))
- return false; /* read_callback_ sets the state for us */
- return true;
-}
-
-FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- FLAC__bool first = true;
-
- /* If we know the total number of samples in the stream, stop if we've read that many. */
- /* This will stop us, for example, from wasting time trying to sync on an ID3V1 tag. */
- if(FLAC__stream_decoder_get_total_samples(decoder) > 0) {
- if(decoder->private_->samples_decoded >= FLAC__stream_decoder_get_total_samples(decoder)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return true;
- }
- }
-
- /* make sure we're byte aligned */
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
- return false; /* read_callback_ sets the state for us */
- }
-
- while(1) {
- if(decoder->private_->cached) {
- x = (FLAC__uint32)decoder->private_->lookahead;
- decoder->private_->cached = false;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- }
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->header_warmup[0] = (FLAC__byte)x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
-
- /* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
- /* else we have to check if the second byte is the end of a sync code */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- }
- else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
- decoder->private_->header_warmup[1] = (FLAC__byte)x;
- decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
- return true;
- }
- }
- if(first) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- first = false;
- }
- }
-
- return true;
-}
-
-FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode)
-{
- unsigned channel;
- unsigned i;
- FLAC__int32 mid, side;
- unsigned frame_crc; /* the one we calculate from the input stream */
- FLAC__uint32 x;
-
- *got_a_frame = false;
-
- /* init the CRC */
- frame_crc = 0;
- frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[0], frame_crc);
- frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[1], frame_crc);
- FLAC__bitreader_reset_read_crc16(decoder->private_->input, (FLAC__uint16)frame_crc);
-
- if(!read_frame_header_(decoder))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means we didn't sync on a valid header */
- return true;
- if(!allocate_output_(decoder, decoder->private_->frame.header.blocksize, decoder->private_->frame.header.channels))
- return false;
- for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
- /*
- * first figure the correct bits-per-sample of the subframe
- */
- unsigned bps = decoder->private_->frame.header.bits_per_sample;
- switch(decoder->private_->frame.header.channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- /* no adjustment needed */
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 1)
- bps++;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 0)
- bps++;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- if(channel == 1)
- bps++;
- break;
- default:
- FLAC__ASSERT(0);
- }
- /*
- * now read it
- */
- if(!read_subframe_(decoder, channel, bps, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
- if(!read_zero_padding_(decoder))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption (i.e. "zero bits" were not all zeroes) */
- return true;
-
- /*
- * Read the frame CRC-16 from the footer and check
- */
- frame_crc = FLAC__bitreader_get_read_crc16(decoder->private_->input);
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__FRAME_FOOTER_CRC_LEN))
- return false; /* read_callback_ sets the state for us */
- if(frame_crc == x) {
- if(do_full_decode) {
- /* Undo any special channel coding */
- switch(decoder->private_->frame.header.channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- /* do nothing */
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->output[1][i];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- decoder->private_->output[0][i] += decoder->private_->output[1][i];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
-#if 1
- mid = decoder->private_->output[0][i];
- side = decoder->private_->output[1][i];
- mid = ((uint32_t) mid) << 1;
- mid |= (side & 1); /* i.e. if 'side' is odd... */
- decoder->private_->output[0][i] = (mid + side) >> 1;
- decoder->private_->output[1][i] = (mid - side) >> 1;
-#else
- /* OPT: without 'side' temp variable */
- mid = (decoder->private_->output[0][i] << 1) | (decoder->private_->output[1][i] & 1); /* i.e. if 'side' is odd... */
- decoder->private_->output[0][i] = (mid + decoder->private_->output[1][i]) >> 1;
- decoder->private_->output[1][i] = (mid - decoder->private_->output[1][i]) >> 1;
-#endif
- }
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
- }
- }
- else {
- /* Bad frame, emit error and zero the output signal */
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
- if(do_full_decode) {
- for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
- memset(decoder->private_->output[channel], 0, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
- }
- }
- }
-
- *got_a_frame = true;
-
- /* we wait to update fixed_block_size until here, when we're sure we've got a proper frame and hence a correct blocksize */
- if(decoder->private_->next_fixed_block_size)
- decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size;
-
- /* put the latest values into the public section of the decoder instance */
- decoder->protected_->channels = decoder->private_->frame.header.channels;
- decoder->protected_->channel_assignment = decoder->private_->frame.header.channel_assignment;
- decoder->protected_->bits_per_sample = decoder->private_->frame.header.bits_per_sample;
- decoder->protected_->sample_rate = decoder->private_->frame.header.sample_rate;
- decoder->protected_->blocksize = decoder->private_->frame.header.blocksize;
-
- FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- decoder->private_->samples_decoded = decoder->private_->frame.header.number.sample_number + decoder->private_->frame.header.blocksize;
-
- /* write it */
- if(do_full_decode) {
- if(write_audio_frame_to_client_(decoder, &decoder->private_->frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE) {
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- }
-
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
-}
-
-FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder)
-{
- FLAC__uint32 x;
- FLAC__uint64 xx;
- unsigned i, blocksize_hint = 0, sample_rate_hint = 0;
- FLAC__byte crc8, raw_header[16]; /* MAGIC NUMBER based on the maximum frame header size, including CRC */
- unsigned raw_header_len;
- FLAC__bool is_unparseable = false;
-
- FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
-
- /* init the raw header with the saved bits from synchronization */
- raw_header[0] = decoder->private_->header_warmup[0];
- raw_header[1] = decoder->private_->header_warmup[1];
- raw_header_len = 2;
-
- /* check to make sure that reserved bit is 0 */
- if(raw_header[1] & 0x02) /* MAGIC NUMBER */
- is_unparseable = true;
-
- /*
- * Note that along the way as we read the header, we look for a sync
- * code inside. If we find one it would indicate that our original
- * sync was bad since there cannot be a sync code in a valid header.
- *
- * Three kinds of things can go wrong when reading the frame header:
- * 1) We may have sync'ed incorrectly and not landed on a frame header.
- * If we don't find a sync code, it can end up looking like we read
- * a valid but unparseable header, until getting to the frame header
- * CRC. Even then we could get a false positive on the CRC.
- * 2) We may have sync'ed correctly but on an unparseable frame (from a
- * future encoder).
- * 3) We may be on a damaged frame which appears valid but unparseable.
- *
- * For all these reasons, we try and read a complete frame header as
- * long as it seems valid, even if unparseable, up until the frame
- * header CRC.
- */
-
- /*
- * read in the raw header as bytes so we can CRC it, and parse it on the way
- */
- for(i = 0; i < 2; i++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
- /* if we get here it means our original sync was erroneous since the sync code cannot appear in the header */
- decoder->private_->lookahead = (FLAC__byte)x;
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- raw_header[raw_header_len++] = (FLAC__byte)x;
- }
-
- switch(x = raw_header[2] >> 4) {
- case 0:
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.blocksize = 192;
- break;
- case 2:
- case 3:
- case 4:
- case 5:
- decoder->private_->frame.header.blocksize = 576 << (x-2);
- break;
- case 6:
- case 7:
- blocksize_hint = x;
- break;
- case 8:
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- decoder->private_->frame.header.blocksize = 256 << (x-8);
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
-
- switch(x = raw_header[2] & 0x0f) {
- case 0:
- if(decoder->private_->has_stream_info)
- decoder->private_->frame.header.sample_rate = decoder->private_->stream_info.data.stream_info.sample_rate;
- else
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.sample_rate = 88200;
- break;
- case 2:
- decoder->private_->frame.header.sample_rate = 176400;
- break;
- case 3:
- decoder->private_->frame.header.sample_rate = 192000;
- break;
- case 4:
- decoder->private_->frame.header.sample_rate = 8000;
- break;
- case 5:
- decoder->private_->frame.header.sample_rate = 16000;
- break;
- case 6:
- decoder->private_->frame.header.sample_rate = 22050;
- break;
- case 7:
- decoder->private_->frame.header.sample_rate = 24000;
- break;
- case 8:
- decoder->private_->frame.header.sample_rate = 32000;
- break;
- case 9:
- decoder->private_->frame.header.sample_rate = 44100;
- break;
- case 10:
- decoder->private_->frame.header.sample_rate = 48000;
- break;
- case 11:
- decoder->private_->frame.header.sample_rate = 96000;
- break;
- case 12:
- case 13:
- case 14:
- sample_rate_hint = x;
- break;
- case 15:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- default:
- FLAC__ASSERT(0);
- }
-
- x = (unsigned)(raw_header[3] >> 4);
- if(x & 8) {
- decoder->private_->frame.header.channels = 2;
- switch(x & 7) {
- case 0:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE;
- break;
- case 1:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE;
- break;
- case 2:
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_MID_SIDE;
- break;
- default:
- is_unparseable = true;
- break;
- }
- }
- else {
- decoder->private_->frame.header.channels = (unsigned)x + 1;
- decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
- }
-
- switch(x = (unsigned)(raw_header[3] & 0x0e) >> 1) {
- case 0:
- if(decoder->private_->has_stream_info)
- decoder->private_->frame.header.bits_per_sample = decoder->private_->stream_info.data.stream_info.bits_per_sample;
- else
- is_unparseable = true;
- break;
- case 1:
- decoder->private_->frame.header.bits_per_sample = 8;
- break;
- case 2:
- decoder->private_->frame.header.bits_per_sample = 12;
- break;
- case 4:
- decoder->private_->frame.header.bits_per_sample = 16;
- break;
- case 5:
- decoder->private_->frame.header.bits_per_sample = 20;
- break;
- case 6:
- decoder->private_->frame.header.bits_per_sample = 24;
- break;
- case 3:
- case 7:
- is_unparseable = true;
- break;
- default:
- FLAC__ASSERT(0);
- break;
- }
-
- /* check to make sure that reserved bit is 0 */
- if(raw_header[3] & 0x01) /* MAGIC NUMBER */
- is_unparseable = true;
-
- /* read the frame's starting sample number (or frame number as the case may be) */
- if(
- raw_header[1] & 0x01 ||
- /*@@@ this clause is a concession to the old way of doing variable blocksize; the only known implementation is flake and can probably be removed without inconveniencing anyone */
- (decoder->private_->has_stream_info && decoder->private_->stream_info.data.stream_info.min_blocksize != decoder->private_->stream_info.data.stream_info.max_blocksize)
- ) { /* variable blocksize */
- if(!FLAC__bitreader_read_utf8_uint64(decoder->private_->input, &xx, raw_header, &raw_header_len))
- return false; /* read_callback_ sets the state for us */
- if(xx == FLAC__U64L(0xffffffffffffffff)) { /* i.e. non-UTF8 code... */
- decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
- decoder->private_->frame.header.number.sample_number = xx;
- }
- else { /* fixed blocksize */
- if(!FLAC__bitreader_read_utf8_uint32(decoder->private_->input, &x, raw_header, &raw_header_len))
- return false; /* read_callback_ sets the state for us */
- if(x == 0xffffffff) { /* i.e. non-UTF8 code... */
- decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
- decoder->private_->cached = true;
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
- decoder->private_->frame.header.number.frame_number = x;
- }
-
- if(blocksize_hint) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)x;
- if(blocksize_hint == 7) {
- FLAC__uint32 _x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)_x;
- x = (x << 8) | _x;
- }
- decoder->private_->frame.header.blocksize = x+1;
- }
-
- if(sample_rate_hint) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)x;
- if(sample_rate_hint != 12) {
- FLAC__uint32 _x;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
- return false; /* read_callback_ sets the state for us */
- raw_header[raw_header_len++] = (FLAC__byte)_x;
- x = (x << 8) | _x;
- }
- if(sample_rate_hint == 12)
- decoder->private_->frame.header.sample_rate = x*1000;
- else if(sample_rate_hint == 13)
- decoder->private_->frame.header.sample_rate = x;
- else
- decoder->private_->frame.header.sample_rate = x*10;
- }
-
- /* read the CRC-8 byte */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
- return false; /* read_callback_ sets the state for us */
- crc8 = (FLAC__byte)x;
-
- if(FLAC__crc8(raw_header, raw_header_len) != crc8) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* calculate the sample number from the frame number if needed */
- decoder->private_->next_fixed_block_size = 0;
- if(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
- x = decoder->private_->frame.header.number.frame_number;
- decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
- if(decoder->private_->fixed_block_size)
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->fixed_block_size * (FLAC__uint64)x;
- else if(decoder->private_->has_stream_info) {
- if(decoder->private_->stream_info.data.stream_info.min_blocksize == decoder->private_->stream_info.data.stream_info.max_blocksize) {
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->stream_info.data.stream_info.min_blocksize * (FLAC__uint64)x;
- decoder->private_->next_fixed_block_size = decoder->private_->stream_info.data.stream_info.max_blocksize;
- }
- else
- is_unparseable = true;
- }
- else if(x == 0) {
- decoder->private_->frame.header.number.sample_number = 0;
- decoder->private_->next_fixed_block_size = decoder->private_->frame.header.blocksize;
- }
- else {
- /* can only get here if the stream has invalid frame numbering and no STREAMINFO, so assume it's not the last (possibly short) frame */
- decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->frame.header.blocksize * (FLAC__uint64)x;
- }
- }
-
- if(is_unparseable) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__uint32 x;
- FLAC__bool wasted_bits;
- unsigned i;
-
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8)) /* MAGIC NUMBER */
- return false; /* read_callback_ sets the state for us */
-
- wasted_bits = (x & 1);
- x &= 0xfe;
-
- if(wasted_bits) {
- unsigned u;
- if(!FLAC__bitreader_read_unary_unsigned(decoder->private_->input, &u))
- return false; /* read_callback_ sets the state for us */
- decoder->private_->frame.subframes[channel].wasted_bits = u+1;
- if (decoder->private_->frame.subframes[channel].wasted_bits >= bps)
- return false;
- bps -= decoder->private_->frame.subframes[channel].wasted_bits;
- }
- else
- decoder->private_->frame.subframes[channel].wasted_bits = 0;
-
- /*
- * Lots of magic numbers here
- */
- if(x & 0x80) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else if(x == 0) {
- if(!read_subframe_constant_(decoder, channel, bps, do_full_decode))
- return false;
- }
- else if(x == 2) {
- if(!read_subframe_verbatim_(decoder, channel, bps, do_full_decode))
- return false;
- }
- else if(x < 16) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else if(x <= 24) {
- if(!read_subframe_fixed_(decoder, channel, bps, (x>>1)&7, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
- else if(x < 64) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- else {
- if(!read_subframe_lpc_(decoder, channel, bps, ((x>>1)&31)+1, do_full_decode))
- return false;
- if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
- return true;
- }
-
- if(wasted_bits && do_full_decode) {
- x = decoder->private_->frame.subframes[channel].wasted_bits;
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
- uint32_t val = decoder->private_->output[channel][i];
- decoder->private_->output[channel][i] = (val << x);
- }
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Constant *subframe = &decoder->private_->frame.subframes[channel].data.constant;
- FLAC__int32 x;
- unsigned i;
- FLAC__int32 *output = decoder->private_->output[channel];
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;
-
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
- return false; /* read_callback_ sets the state for us */
-
- subframe->value = x;
-
- /* decode the subframe */
- if(do_full_decode) {
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
- output[i] = x;
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Fixed *subframe = &decoder->private_->frame.subframes[channel].data.fixed;
- FLAC__int32 i32;
- FLAC__uint32 u32;
- unsigned u;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_FIXED;
-
- subframe->residual = decoder->private_->residual[channel];
- subframe->order = order;
-
- /* read warm-up samples */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
- return false; /* read_callback_ sets the state for us */
- subframe->warmup[u] = i32;
- }
-
- /* read entropy coding method info */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false; /* read_callback_ sets the state for us */
- if(decoder->private_->frame.header.blocksize >> u32 < order) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- subframe->entropy_coding_method.data.partitioned_rice.order = u32;
- subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
- break;
- default:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* read residual */
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* decode the subframe */
- if(do_full_decode) {
- memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
- FLAC__fixed_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, const unsigned order, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_LPC *subframe = &decoder->private_->frame.subframes[channel].data.lpc;
- FLAC__int32 i32;
- FLAC__uint32 u32;
- unsigned u;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_LPC;
-
- subframe->residual = decoder->private_->residual[channel];
- subframe->order = order;
-
- /* read warm-up samples */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, bps))
- return false; /* read_callback_ sets the state for us */
- subframe->warmup[u] = i32;
- }
-
- /* read qlp coeff precision */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
- return false; /* read_callback_ sets the state for us */
- if(u32 == (1u << FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN) - 1) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- subframe->qlp_coeff_precision = u32+1;
-
- /* read qlp shift */
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
- return false; /* read_callback_ sets the state for us */
- if(i32 < 0) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- subframe->quantization_level = i32;
-
- /* read quantized lp coefficiencts */
- for(u = 0; u < order; u++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, subframe->qlp_coeff_precision))
- return false; /* read_callback_ sets the state for us */
- subframe->qlp_coeff[u] = i32;
- }
-
- /* read entropy coding method info */
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false; /* read_callback_ sets the state for us */
- subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false; /* read_callback_ sets the state for us */
- if(decoder->private_->frame.header.blocksize >> u32 < order) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
- subframe->entropy_coding_method.data.partitioned_rice.order = u32;
- subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
- break;
- default:
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- return true;
- }
-
- /* read residual */
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* decode the subframe */
- if(do_full_decode) {
- memcpy(decoder->private_->output[channel], subframe->warmup, sizeof(FLAC__int32) * order);
- if(bps + subframe->qlp_coeff_precision + FLAC__bitmath_ilog2(order) <= 32)
- if(bps <= 16 && subframe->qlp_coeff_precision <= 16)
- decoder->private_->local_lpc_restore_signal_16bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- else
- decoder->private_->local_lpc_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- else
- decoder->private_->local_lpc_restore_signal_64bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
- }
-
- return true;
-}
-
-FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, unsigned channel, unsigned bps, FLAC__bool do_full_decode)
-{
- FLAC__Subframe_Verbatim *subframe = &decoder->private_->frame.subframes[channel].data.verbatim;
- FLAC__int32 x, *residual = decoder->private_->residual[channel];
- unsigned i;
-
- decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_VERBATIM;
-
- subframe->data = residual;
-
- for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
- return false; /* read_callback_ sets the state for us */
- residual[i] = x;
- }
-
- /* decode the subframe */
- if(do_full_decode)
- memcpy(decoder->private_->output[channel], subframe->data, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
-
- return true;
-}
-
-FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, unsigned predictor_order, unsigned partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended)
-{
- FLAC__uint32 rice_parameter;
- int i;
- unsigned partition, sample, u;
- const unsigned partitions = 1u << partition_order;
- const unsigned partition_samples = partition_order > 0? decoder->private_->frame.header.blocksize >> partition_order : decoder->private_->frame.header.blocksize - predictor_order;
- const unsigned plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
- const unsigned pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- /* invalid predictor and partition orders mush be handled in the callers */
- FLAC__ASSERT(partition_order > 0? partition_samples >= predictor_order : decoder->private_->frame.header.blocksize >= predictor_order);
-
- if(!FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, flac_max(6u, partition_order))) {
- decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- sample = 0;
- for(partition = 0; partition < partitions; partition++) {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, plen))
- return false; /* read_callback_ sets the state for us */
- partitioned_rice_contents->parameters[partition] = rice_parameter;
- if(rice_parameter < pesc) {
- partitioned_rice_contents->raw_bits[partition] = 0;
- u = (partition_order == 0 || partition > 0)? partition_samples : partition_samples - predictor_order;
- if(!FLAC__bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter))
- return false; /* read_callback_ sets the state for us */
- sample += u;
- }
- else {
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false; /* read_callback_ sets the state for us */
- partitioned_rice_contents->raw_bits[partition] = rice_parameter;
- for(u = (partition_order == 0 || partition > 0)? 0 : predictor_order; u < partition_samples; u++, sample++) {
- if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
- return false; /* read_callback_ sets the state for us */
- residual[sample] = i;
- }
- }
- }
-
- return true;
-}
-
-FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder)
-{
- if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
- FLAC__uint32 zero = 0;
- if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &zero, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
- return false; /* read_callback_ sets the state for us */
- if(zero != 0) {
- send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
- decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
- }
- }
- return true;
-}
-
-FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder *)client_data;
-
- if(
-#if FLAC__HAS_OGG
- /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
- !decoder->private_->is_ogg &&
-#endif
- decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
- ) {
- *bytes = 0;
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return false;
- }
- else if(*bytes > 0) {
- /* While seeking, it is possible for our seek to land in the
- * middle of audio data that looks exactly like a frame header
- * from a future version of an encoder. When that happens, our
- * error callback will get an
- * FLAC__STREAM_DECODER_UNPARSEABLE_STREAM and increment its
- * unparseable_frame_count. But there is a remote possibility
- * that it is properly synced at such a "future-codec frame",
- * so to make sure, we wait to see many "unparseable" errors in
- * a row before bailing out.
- */
- if(decoder->private_->is_seeking && decoder->private_->unparseable_frame_count > 20) {
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- else {
- const FLAC__StreamDecoderReadStatus status =
-#if FLAC__HAS_OGG
- decoder->private_->is_ogg?
- read_callback_ogg_aspect_(decoder, buffer, bytes) :
-#endif
- decoder->private_->read_callback(decoder, buffer, bytes, decoder->private_->client_data)
- ;
- if(status == FLAC__STREAM_DECODER_READ_STATUS_ABORT) {
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- else if(*bytes == 0) {
- if(
- status == FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM ||
- (
-#if FLAC__HAS_OGG
- /* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
- !decoder->private_->is_ogg &&
-#endif
- decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
- )
- ) {
- decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
- return false;
- }
- else
- return true;
- }
- else
- return true;
- }
- }
- else {
- /* abort to avoid a deadlock */
- decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
- return false;
- }
- /* [1] @@@ HACK NOTE: The end-of-stream checking has to be hacked around
- * for Ogg FLAC. This is because the ogg decoder aspect can lose sync
- * and at the same time hit the end of the stream (for example, seeking
- * to a point that is after the beginning of the last Ogg page). There
- * is no way to report an Ogg sync loss through the callbacks (see note
- * in read_callback_ogg_aspect_()) so it returns CONTINUE with *bytes==0.
- * So to keep the decoder from stopping at this point we gate the call
- * to the eof_callback and let the Ogg decoder aspect set the
- * end-of-stream state when it is needed.
- */
-}
-
-#if FLAC__HAS_OGG
-FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes)
-{
- switch(FLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) {
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- /* we don't really have a way to handle lost sync via read
- * callback so we'll let it pass and let the underlying
- * FLAC decoder catch the error
- */
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC:
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR:
- case FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR:
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- default:
- FLAC__ASSERT(0);
- /* double protection */
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- }
-}
-
-FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder*)void_decoder;
-
- switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) {
- case FLAC__STREAM_DECODER_READ_STATUS_CONTINUE:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
- case FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
- case FLAC__STREAM_DECODER_READ_STATUS_ABORT:
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
- default:
- /* double protection: */
- FLAC__ASSERT(0);
- return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
- }
-}
-#endif
-
-FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
-{
- if(decoder->private_->is_seeking) {
- FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
- FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
- FLAC__uint64 target_sample = decoder->private_->target_sample;
-
- FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
-
-#if FLAC__HAS_OGG
- decoder->private_->got_a_frame = true;
-#endif
- decoder->private_->last_frame = *frame; /* save the frame */
- if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
- unsigned delta = (unsigned)(target_sample - this_frame_sample);
- /* kick out of seek mode */
- decoder->private_->is_seeking = false;
- /* shift out the samples before target_sample */
- if(delta > 0) {
- unsigned channel;
- const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
- for(channel = 0; channel < frame->header.channels; channel++)
- newbuffer[channel] = buffer[channel] + delta;
- decoder->private_->last_frame.header.blocksize -= delta;
- decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
- /* write the relevant samples */
- return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data);
- }
- else {
- /* write the relevant samples */
- return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
- }
- }
- else {
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
- }
- }
- else {
- /*
- * If we never got STREAMINFO, turn off MD5 checking to save
- * cycles since we don't have a sum to compare to anyway
- */
- if(!decoder->private_->has_stream_info)
- decoder->private_->do_md5_checking = false;
- if(decoder->private_->do_md5_checking) {
- if(!FLAC__MD5Accumulate(&decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
- }
- return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
- }
-}
-
-void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
-{
- if(!decoder->private_->is_seeking)
- decoder->private_->error_callback(decoder, status, decoder->private_->client_data);
- else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
- decoder->private_->unparseable_frame_count++;
-}
-
-FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
-{
- FLAC__uint64 first_frame_offset = decoder->private_->first_frame_offset, lower_bound, upper_bound, lower_bound_sample, upper_bound_sample, this_frame_sample;
- FLAC__int64 pos = -1;
- int i;
- unsigned approx_bytes_per_frame;
- FLAC__bool first_seek = true;
- const FLAC__uint64 total_samples = FLAC__stream_decoder_get_total_samples(decoder);
- const unsigned min_blocksize = decoder->private_->stream_info.data.stream_info.min_blocksize;
- const unsigned max_blocksize = decoder->private_->stream_info.data.stream_info.max_blocksize;
- const unsigned max_framesize = decoder->private_->stream_info.data.stream_info.max_framesize;
- const unsigned min_framesize = decoder->private_->stream_info.data.stream_info.min_framesize;
- /* take these from the current frame in case they've changed mid-stream */
- unsigned channels = FLAC__stream_decoder_get_channels(decoder);
- unsigned bps = FLAC__stream_decoder_get_bits_per_sample(decoder);
- const FLAC__StreamMetadata_SeekTable *seek_table = decoder->private_->has_seek_table? &decoder->private_->seek_table.data.seek_table : 0;
-
- /* use values from stream info if we didn't decode a frame */
- if(channels == 0)
- channels = decoder->private_->stream_info.data.stream_info.channels;
- if(bps == 0)
- bps = decoder->private_->stream_info.data.stream_info.bits_per_sample;
-
- /* we are just guessing here */
- if(max_framesize > 0)
- approx_bytes_per_frame = (max_framesize + min_framesize) / 2 + 1;
- /*
- * Check if it's a known fixed-blocksize stream. Note that though
- * the spec doesn't allow zeroes in the STREAMINFO block, we may
- * never get a STREAMINFO block when decoding so the value of
- * min_blocksize might be zero.
- */
- else if(min_blocksize == max_blocksize && min_blocksize > 0) {
- /* note there are no () around 'bps/8' to keep precision up since it's an integer calulation */
- approx_bytes_per_frame = min_blocksize * channels * bps/8 + 64;
- }
- else
- approx_bytes_per_frame = 4096 * channels * bps/8 + 64;
-
- /*
- * First, we set an upper and lower bound on where in the
- * stream we will search. For now we assume the worst case
- * scenario, which is our best guess at the beginning of
- * the first frame and end of the stream.
- */
- lower_bound = first_frame_offset;
- lower_bound_sample = 0;
- upper_bound = stream_length;
- upper_bound_sample = total_samples > 0 ? total_samples : target_sample /*estimate it*/;
-
- /*
- * Now we refine the bounds if we have a seektable with
- * suitable points. Note that according to the spec they
- * must be ordered by ascending sample number.
- *
- * Note: to protect against invalid seek tables we will ignore points
- * that have frame_samples==0 or sample_number>=total_samples
- */
- if(seek_table) {
- FLAC__uint64 new_lower_bound = lower_bound;
- FLAC__uint64 new_upper_bound = upper_bound;
- FLAC__uint64 new_lower_bound_sample = lower_bound_sample;
- FLAC__uint64 new_upper_bound_sample = upper_bound_sample;
-
- /* find the closest seek point <= target_sample, if it exists */
- for(i = (int)seek_table->num_points - 1; i >= 0; i--) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
- (total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
- seek_table->points[i].sample_number <= target_sample
- )
- break;
- }
- if(i >= 0) { /* i.e. we found a suitable seek point... */
- new_lower_bound = first_frame_offset + seek_table->points[i].stream_offset;
- new_lower_bound_sample = seek_table->points[i].sample_number;
- }
-
- /* find the closest seek point > target_sample, if it exists */
- for(i = 0; i < (int)seek_table->num_points; i++) {
- if(
- seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
- seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
- (total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
- seek_table->points[i].sample_number > target_sample
- )
- break;
- }
- if(i < (int)seek_table->num_points) { /* i.e. we found a suitable seek point... */
- new_upper_bound = first_frame_offset + seek_table->points[i].stream_offset;
- new_upper_bound_sample = seek_table->points[i].sample_number;
- }
- /* final protection against unsorted seek tables; keep original values if bogus */
- if(new_upper_bound >= new_lower_bound) {
- lower_bound = new_lower_bound;
- upper_bound = new_upper_bound;
- lower_bound_sample = new_lower_bound_sample;
- upper_bound_sample = new_upper_bound_sample;
- }
- }
-
- FLAC__ASSERT(upper_bound_sample >= lower_bound_sample);
- /* there are 2 insidious ways that the following equality occurs, which
- * we need to fix:
- * 1) total_samples is 0 (unknown) and target_sample is 0
- * 2) total_samples is 0 (unknown) and target_sample happens to be
- * exactly equal to the last seek point in the seek table; this
- * means there is no seek point above it, and upper_bound_samples
- * remains equal to the estimate (of target_samples) we made above
- * in either case it does not hurt to move upper_bound_sample up by 1
- */
- if(upper_bound_sample == lower_bound_sample)
- upper_bound_sample++;
-
- decoder->private_->target_sample = target_sample;
- while(1) {
- /* check if the bounds are still ok */
- if (lower_bound_sample >= upper_bound_sample || lower_bound > upper_bound) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)(target_sample - lower_bound_sample) / (double)(upper_bound_sample - lower_bound_sample) * (double)(upper_bound - lower_bound)) - approx_bytes_per_frame;
-#else
- /* a little less accurate: */
- if(upper_bound - lower_bound < 0xffffffff)
- pos = (FLAC__int64)lower_bound + (FLAC__int64)(((target_sample - lower_bound_sample) * (upper_bound - lower_bound)) / (upper_bound_sample - lower_bound_sample)) - approx_bytes_per_frame;
- else /* @@@ WATCHOUT, ~2TB limit */
- pos = (FLAC__int64)lower_bound + (FLAC__int64)((((target_sample - lower_bound_sample)>>8) * ((upper_bound - lower_bound)>>8)) / ((upper_bound_sample - lower_bound_sample)>>16)) - approx_bytes_per_frame;
-#endif
- if(pos >= (FLAC__int64)upper_bound)
- pos = (FLAC__int64)upper_bound - 1;
- if(pos < (FLAC__int64)lower_bound)
- pos = (FLAC__int64)lower_bound;
- if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
- /* Now we need to get a frame. First we need to reset our
- * unparseable_frame_count; if we get too many unparseable
- * frames in a row, the read callback will return
- * FLAC__STREAM_DECODER_READ_STATUS_ABORT, causing
- * FLAC__stream_decoder_process_single() to return false.
- */
- decoder->private_->unparseable_frame_count = 0;
- if(!FLAC__stream_decoder_process_single(decoder) ||
- decoder->protected_->state == FLAC__STREAM_DECODER_ABORTED) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- /* our write callback will change the state when it gets to the target frame */
- /* actually, we could have got_a_frame if our decoder is at FLAC__STREAM_DECODER_END_OF_STREAM so we need to check for that also */
-#if 0
- /*@@@@@@ used to be the following; not clear if the check for end of stream is needed anymore */
- if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING && decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM)
- break;
-#endif
- if(!decoder->private_->is_seeking)
- break;
-
- FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
-
- if (0 == decoder->private_->samples_decoded || (this_frame_sample + decoder->private_->last_frame.header.blocksize >= upper_bound_sample && !first_seek)) {
- if (pos == (FLAC__int64)lower_bound) {
- /* can't move back any more than the first frame, something is fatally wrong */
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- /* our last move backwards wasn't big enough, try again */
- approx_bytes_per_frame = approx_bytes_per_frame? approx_bytes_per_frame * 2 : 16;
- continue;
- }
- /* allow one seek over upper bound, so we can get a correct upper_bound_sample for streams with unknown total_samples */
- first_seek = false;
-
- /* make sure we are not seeking in corrupted stream */
- if (this_frame_sample < lower_bound_sample) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
-
- /* we need to narrow the search */
- if(target_sample < this_frame_sample) {
- upper_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
-/*@@@@@@ what will decode position be if at end of stream? */
- if(!FLAC__stream_decoder_get_decode_position(decoder, &upper_bound)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- approx_bytes_per_frame = (unsigned)(2 * (upper_bound - pos) / 3 + 16);
- }
- else { /* target_sample >= this_frame_sample + this frame's blocksize */
- lower_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
- if(!FLAC__stream_decoder_get_decode_position(decoder, &lower_bound)) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- approx_bytes_per_frame = (unsigned)(2 * (lower_bound - pos) / 3 + 16);
- }
- }
-
- return true;
-}
-
-#if FLAC__HAS_OGG
-FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
-{
- FLAC__uint64 left_pos = 0, right_pos = stream_length;
- FLAC__uint64 left_sample = 0, right_sample = FLAC__stream_decoder_get_total_samples(decoder);
- FLAC__uint64 this_frame_sample = (FLAC__uint64)0 - 1;
- FLAC__uint64 pos = 0; /* only initialized to avoid compiler warning */
- FLAC__bool did_a_seek;
- unsigned iteration = 0;
-
- /* In the first iterations, we will calculate the target byte position
- * by the distance from the target sample to left_sample and
- * right_sample (let's call it "proportional search"). After that, we
- * will switch to binary search.
- */
- unsigned BINARY_SEARCH_AFTER_ITERATION = 2;
-
- /* We will switch to a linear search once our current sample is less
- * than this number of samples ahead of the target sample
- */
- static const FLAC__uint64 LINEAR_SEARCH_WITHIN_SAMPLES = FLAC__MAX_BLOCK_SIZE * 2;
-
- /* If the total number of samples is unknown, use a large value, and
- * force binary search immediately.
- */
- if(right_sample == 0) {
- right_sample = (FLAC__uint64)(-1);
- BINARY_SEARCH_AFTER_ITERATION = 0;
- }
-
- decoder->private_->target_sample = target_sample;
- for( ; ; iteration++) {
- if (iteration == 0 || this_frame_sample > target_sample || target_sample - this_frame_sample > LINEAR_SEARCH_WITHIN_SAMPLES) {
- if (iteration >= BINARY_SEARCH_AFTER_ITERATION) {
- pos = (right_pos + left_pos) / 2;
- }
- else {
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- pos = (FLAC__uint64)((double)(target_sample - left_sample) / (double)(right_sample - left_sample) * (double)(right_pos - left_pos));
-#else
- /* a little less accurate: */
- if ((target_sample-left_sample <= 0xffffffff) && (right_pos-left_pos <= 0xffffffff))
- pos = (FLAC__int64)(((target_sample-left_sample) * (right_pos-left_pos)) / (right_sample-left_sample));
- else /* @@@ WATCHOUT, ~2TB limit */
- pos = (FLAC__int64)((((target_sample-left_sample)>>8) * ((right_pos-left_pos)>>8)) / ((right_sample-left_sample)>>16));
-#endif
- /* @@@ TODO: might want to limit pos to some distance
- * before EOF, to make sure we land before the last frame,
- * thereby getting a this_frame_sample and so having a better
- * estimate.
- */
- }
-
- /* physical seek */
- if(decoder->private_->seek_callback((FLAC__StreamDecoder*)decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!FLAC__stream_decoder_flush(decoder)) {
- /* above call sets the state for us */
- return false;
- }
- did_a_seek = true;
- }
- else
- did_a_seek = false;
-
- decoder->private_->got_a_frame = false;
- if(!FLAC__stream_decoder_process_single(decoder) ||
- decoder->protected_->state == FLAC__STREAM_DECODER_ABORTED) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- if(!decoder->private_->got_a_frame) {
- if(did_a_seek) {
- /* this can happen if we seek to a point after the last frame; we drop
- * to binary search right away in this case to avoid any wasted
- * iterations of proportional search.
- */
- right_pos = pos;
- BINARY_SEARCH_AFTER_ITERATION = 0;
- }
- else {
- /* this can probably only happen if total_samples is unknown and the
- * target_sample is past the end of the stream
- */
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- }
- /* our write callback will change the state when it gets to the target frame */
- else if(!decoder->private_->is_seeking) {
- break;
- }
- else {
- this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
- FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
-
- if (did_a_seek) {
- if (this_frame_sample <= target_sample) {
- /* The 'equal' case should not happen, since
- * FLAC__stream_decoder_process_single()
- * should recognize that it has hit the
- * target sample and we would exit through
- * the 'break' above.
- */
- FLAC__ASSERT(this_frame_sample != target_sample);
-
- left_sample = this_frame_sample;
- /* sanity check to avoid infinite loop */
- if (left_pos == pos) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- left_pos = pos;
- }
- else if(this_frame_sample > target_sample) {
- right_sample = this_frame_sample;
- /* sanity check to avoid infinite loop */
- if (right_pos == pos) {
- decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
- return false;
- }
- right_pos = pos;
- }
- }
- }
- }
-
- return true;
-}
-#endif
-
-FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- (void)client_data;
-
- if(*bytes > 0) {
- *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, decoder->private_->file);
- if(ferror(decoder->private_->file))
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- else if(*bytes == 0)
- return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
- else
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
- }
- else
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
-}
-
-FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
-{
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
- else if(fseeko(decoder->private_->file, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
- return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
- else
- return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
-}
-
-FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
-{
- FLAC__off_t pos;
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
- else if((pos = ftello(decoder->private_->file)) < 0)
- return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
- else {
- *absolute_byte_offset = (FLAC__uint64)pos;
- return FLAC__STREAM_DECODER_TELL_STATUS_OK;
- }
-}
-
-FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
-{
- struct flac_stat_s filestats;
- (void)client_data;
-
- if(decoder->private_->file == stdin)
- return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
- else if(flac_fstat(fileno(decoder->private_->file), &filestats) != 0)
- return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
- else {
- *stream_length = (FLAC__uint64)filestats.st_size;
- return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
- }
-}
-
-FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data)
-{
- (void)client_data;
-
- return feof(decoder->private_->file)? true : false;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h> /* for malloc() */
-#include <string.h> /* for memcpy() */
-#include <sys/types.h> /* for off_t */
-#ifdef _WIN32
-#include <windows.h> /* for GetFileType() */
-#include <io.h> /* for _get_osfhandle() */
-#endif
-#include "share/compat.h"
-#include "FLAC/assert.h"
-#include "FLAC/stream_decoder.h"
-#include "protected/stream_encoder.h"
-#include "private/bitwriter.h"
-#include "private/bitmath.h"
-#include "private/crc.h"
-#include "private/cpu.h"
-#include "private/fixed.h"
-#include "private/format.h"
-#include "private/lpc.h"
-#include "private/md5.h"
-#include "private/memory.h"
-#include "private/macros.h"
-#if FLAC__HAS_OGG
-#include "private/ogg_helper.h"
-#include "private/ogg_mapping.h"
-#endif
-#include "private/stream_encoder.h"
-#include "private/stream_encoder_framing.h"
-#include "private/window.h"
-#include "share/alloc.h"
-#include "share/private.h"
-
-
-/* Exact Rice codeword length calculation is off by default. The simple
- * (and fast) estimation (of how many bits a residual value will be
- * encoded with) in this encoder is very good, almost always yielding
- * compression within 0.1% of exact calculation.
- */
-#undef EXACT_RICE_BITS_CALCULATION
-/* Rice parameter searching is off by default. The simple (and fast)
- * parameter estimation in this encoder is very good, almost always
- * yielding compression within 0.1% of the optimal parameters.
- */
-#undef ENABLE_RICE_PARAMETER_SEARCH
-
-
-typedef struct {
- FLAC__int32 *data[FLAC__MAX_CHANNELS];
- unsigned size; /* of each data[] in samples */
- unsigned tail;
-} verify_input_fifo;
-
-typedef struct {
- const FLAC__byte *data;
- unsigned capacity;
- unsigned bytes;
-} verify_output;
-
-typedef enum {
- ENCODER_IN_MAGIC = 0,
- ENCODER_IN_METADATA = 1,
- ENCODER_IN_AUDIO = 2
-} EncoderStateHint;
-
-static struct CompressionLevels {
- FLAC__bool do_mid_side_stereo;
- FLAC__bool loose_mid_side_stereo;
- unsigned max_lpc_order;
- unsigned qlp_coeff_precision;
- FLAC__bool do_qlp_coeff_prec_search;
- FLAC__bool do_escape_coding;
- FLAC__bool do_exhaustive_model_search;
- unsigned min_residual_partition_order;
- unsigned max_residual_partition_order;
- unsigned rice_parameter_search_dist;
- const char *apodization;
-} compression_levels_[] = {
- { false, false, 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
- { true , true , 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
- { true , false, 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
- { false, false, 6, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
- { true , true , 8, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
- { true , false, 8, 0, false, false, false, 0, 5, 0, "tukey(5e-1)" },
- { true , false, 8, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2)" },
- { true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2)" },
- { true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2);punchout_tukey(3)" }
- /* here we use locale-independent 5e-1 instead of 0.5 or 0,5 */
-};
-
-
-/***********************************************************************
- *
- * Private class method prototypes
- *
- ***********************************************************************/
-
-static void set_defaults_(FLAC__StreamEncoder *encoder);
-static void free_(FLAC__StreamEncoder *encoder);
-static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_blocksize);
-static FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, unsigned samples, FLAC__bool is_last_block);
-static FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, FLAC__bool is_last_block);
-static void update_metadata_(const FLAC__StreamEncoder *encoder);
-#if FLAC__HAS_OGG
-static void update_ogg_metadata_(FLAC__StreamEncoder *encoder);
-#endif
-static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block, FLAC__bool is_last_block);
-static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block);
-
-static FLAC__bool process_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned min_partition_order,
- unsigned max_partition_order,
- const FLAC__FrameHeader *frame_header,
- unsigned subframe_bps,
- const FLAC__int32 integer_signal[],
- FLAC__Subframe *subframe[2],
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
- FLAC__int32 *residual[2],
- unsigned *best_subframe,
- unsigned *best_bits
-);
-
-static FLAC__bool add_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- FLAC__BitWriter *frame
-);
-
-static unsigned evaluate_constant_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal,
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-);
-
-static unsigned evaluate_fixed_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-);
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-static unsigned evaluate_lpc_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- const FLAC__real lp_coeff[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned qlp_coeff_precision,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-);
-#endif
-
-static unsigned evaluate_verbatim_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-);
-
-static unsigned find_best_partition_order_(
- struct FLAC__StreamEncoderPrivate *private_,
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__EntropyCodingMethod *best_ecm
-);
-
-static void precompute_partition_info_sums_(
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps
-);
-
-static void precompute_partition_info_escapes_(
- const FLAC__int32 residual[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order
-);
-
-static FLAC__bool set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- const FLAC__int32 residual[],
-#endif
- const FLAC__uint64 abs_residual_partition_sums[],
- const unsigned raw_bits_per_partition[],
- const unsigned residual_samples,
- const unsigned predictor_order,
- const unsigned suggested_rice_parameter,
- const unsigned rice_parameter_limit,
- const unsigned rice_parameter_search_dist,
- const unsigned partition_order,
- const FLAC__bool search_for_escapes,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
- unsigned *bits
-);
-
-static unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
-
-/* verify-related routines: */
-static void append_to_verify_fifo_(
- verify_input_fifo *fifo,
- const FLAC__int32 * const input[],
- unsigned input_offset,
- unsigned channels,
- unsigned wide_samples
-);
-
-static void append_to_verify_fifo_interleaved_(
- verify_input_fifo *fifo,
- const FLAC__int32 input[],
- unsigned input_offset,
- unsigned channels,
- unsigned wide_samples
-);
-
-static FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-static void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-static FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-static FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
-static FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-static FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
-static FILE *get_binary_stdout_(void);
-
-
-/***********************************************************************
- *
- * Private class data
- *
- ***********************************************************************/
-
-typedef struct FLAC__StreamEncoderPrivate {
- unsigned input_capacity; /* current size (in samples) of the signal and residual buffers */
- FLAC__int32 *integer_signal[FLAC__MAX_CHANNELS]; /* the integer version of the input signal */
- FLAC__int32 *integer_signal_mid_side[2]; /* the integer version of the mid-side input signal (stereo only) */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real *real_signal[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) the floating-point version of the input signal */
- FLAC__real *real_signal_mid_side[2]; /* (@@@ currently unused) the floating-point version of the mid-side input signal (stereo only) */
- FLAC__real *window[FLAC__MAX_APODIZATION_FUNCTIONS]; /* the pre-computed floating-point window for each apodization function */
- FLAC__real *windowed_signal; /* the integer_signal[] * current window[] */
-#endif
- unsigned subframe_bps[FLAC__MAX_CHANNELS]; /* the effective bits per sample of the input signal (stream bps - wasted bits) */
- unsigned subframe_bps_mid_side[2]; /* the effective bits per sample of the mid-side input signal (stream bps - wasted bits + 0/1) */
- FLAC__int32 *residual_workspace[FLAC__MAX_CHANNELS][2]; /* each channel has a candidate and best workspace where the subframe residual signals will be stored */
- FLAC__int32 *residual_workspace_mid_side[2][2];
- FLAC__Subframe subframe_workspace[FLAC__MAX_CHANNELS][2];
- FLAC__Subframe subframe_workspace_mid_side[2][2];
- FLAC__Subframe *subframe_workspace_ptr[FLAC__MAX_CHANNELS][2];
- FLAC__Subframe *subframe_workspace_ptr_mid_side[2][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace_mid_side[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr[FLAC__MAX_CHANNELS][2];
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr_mid_side[FLAC__MAX_CHANNELS][2];
- unsigned best_subframe[FLAC__MAX_CHANNELS]; /* index (0 or 1) into 2nd dimension of the above workspaces */
- unsigned best_subframe_mid_side[2];
- unsigned best_subframe_bits[FLAC__MAX_CHANNELS]; /* size in bits of the best subframe for each channel */
- unsigned best_subframe_bits_mid_side[2];
- FLAC__uint64 *abs_residual_partition_sums; /* workspace where the sum of abs(candidate residual) for each partition is stored */
- unsigned *raw_bits_per_partition; /* workspace where the sum of silog2(candidate residual) for each partition is stored */
- FLAC__BitWriter *frame; /* the current frame being worked on */
- unsigned loose_mid_side_stereo_frames; /* rounded number of frames the encoder will use before trying both independent and mid/side frames again */
- unsigned loose_mid_side_stereo_frame_count; /* number of frames using the current channel assignment */
- FLAC__ChannelAssignment last_channel_assignment;
- FLAC__StreamMetadata streaminfo; /* scratchpad for STREAMINFO as it is built */
- FLAC__StreamMetadata_SeekTable *seek_table; /* pointer into encoder->protected_->metadata_ where the seek table is */
- unsigned current_sample_number;
- unsigned current_frame_number;
- FLAC__MD5Context md5context;
- FLAC__CPUInfo cpuinfo;
- void (*local_precompute_partition_info_sums)(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
- unsigned (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#else
- unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
- unsigned (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
-#endif
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- void (*local_lpc_compute_autocorrelation)(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients_64bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
- void (*local_lpc_compute_residual_from_qlp_coefficients_16bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
-#endif
- FLAC__bool disable_constant_subframes;
- FLAC__bool disable_fixed_subframes;
- FLAC__bool disable_verbatim_subframes;
- FLAC__bool is_ogg;
- FLAC__StreamEncoderReadCallback read_callback; /* currently only needed for Ogg FLAC */
- FLAC__StreamEncoderSeekCallback seek_callback;
- FLAC__StreamEncoderTellCallback tell_callback;
- FLAC__StreamEncoderWriteCallback write_callback;
- FLAC__StreamEncoderMetadataCallback metadata_callback;
- FLAC__StreamEncoderProgressCallback progress_callback;
- void *client_data;
- unsigned first_seekpoint_to_check;
- FILE *file; /* only used when encoding to a file */
- FLAC__uint64 bytes_written;
- FLAC__uint64 samples_written;
- unsigned frames_written;
- unsigned total_frames_estimate;
- /* unaligned (original) pointers to allocated data */
- FLAC__int32 *integer_signal_unaligned[FLAC__MAX_CHANNELS];
- FLAC__int32 *integer_signal_mid_side_unaligned[2];
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real *real_signal_unaligned[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) */
- FLAC__real *real_signal_mid_side_unaligned[2]; /* (@@@ currently unused) */
- FLAC__real *window_unaligned[FLAC__MAX_APODIZATION_FUNCTIONS];
- FLAC__real *windowed_signal_unaligned;
-#endif
- FLAC__int32 *residual_workspace_unaligned[FLAC__MAX_CHANNELS][2];
- FLAC__int32 *residual_workspace_mid_side_unaligned[2][2];
- FLAC__uint64 *abs_residual_partition_sums_unaligned;
- unsigned *raw_bits_per_partition_unaligned;
- /*
- * These fields have been moved here from private function local
- * declarations merely to save stack space during encoding.
- */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
-#endif
- FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_extra[2]; /* from find_best_partition_order_() */
- /*
- * The data for the verify section
- */
- struct {
- FLAC__StreamDecoder *decoder;
- EncoderStateHint state_hint;
- FLAC__bool needs_magic_hack;
- verify_input_fifo input_fifo;
- verify_output output;
- struct {
- FLAC__uint64 absolute_sample;
- unsigned frame_number;
- unsigned channel;
- unsigned sample;
- FLAC__int32 expected;
- FLAC__int32 got;
- } error_stats;
- } verify;
- FLAC__bool is_being_deleted; /* if true, call to ..._finish() from ..._delete() will not call the callbacks */
-} FLAC__StreamEncoderPrivate;
-
-/***********************************************************************
- *
- * Public static class data
- *
- ***********************************************************************/
-
-FLAC_API const char * const FLAC__StreamEncoderStateString[] = {
- "FLAC__STREAM_ENCODER_OK",
- "FLAC__STREAM_ENCODER_UNINITIALIZED",
- "FLAC__STREAM_ENCODER_OGG_ERROR",
- "FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR",
- "FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA",
- "FLAC__STREAM_ENCODER_CLIENT_ERROR",
- "FLAC__STREAM_ENCODER_IO_ERROR",
- "FLAC__STREAM_ENCODER_FRAMING_ERROR",
- "FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderInitStatusString[] = {
- "FLAC__STREAM_ENCODER_INIT_STATUS_OK",
- "FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR",
- "FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION",
- "FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER",
- "FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE",
- "FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA",
- "FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderReadStatusString[] = {
- "FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE",
- "FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM",
- "FLAC__STREAM_ENCODER_READ_STATUS_ABORT",
- "FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[] = {
- "FLAC__STREAM_ENCODER_WRITE_STATUS_OK",
- "FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[] = {
- "FLAC__STREAM_ENCODER_SEEK_STATUS_OK",
- "FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR",
- "FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED"
-};
-
-FLAC_API const char * const FLAC__StreamEncoderTellStatusString[] = {
- "FLAC__STREAM_ENCODER_TELL_STATUS_OK",
- "FLAC__STREAM_ENCODER_TELL_STATUS_ERROR",
- "FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED"
-};
-
-/* Number of samples that will be overread to watch for end of stream. By
- * 'overread', we mean that the FLAC__stream_encoder_process*() calls will
- * always try to read blocksize+1 samples before encoding a block, so that
- * even if the stream has a total sample count that is an integral multiple
- * of the blocksize, we will still notice when we are encoding the last
- * block. This is needed, for example, to correctly set the end-of-stream
- * marker in Ogg FLAC.
- *
- * WATCHOUT: some parts of the code assert that OVERREAD_ == 1 and there's
- * not really any reason to change it.
- */
-static const unsigned OVERREAD_ = 1;
-
-/***********************************************************************
- *
- * Class constructor/destructor
- *
- */
-FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void)
-{
- FLAC__StreamEncoder *encoder;
- unsigned i;
-
- FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
-
- encoder = calloc(1, sizeof(FLAC__StreamEncoder));
- if(encoder == 0) {
- return 0;
- }
-
- encoder->protected_ = calloc(1, sizeof(FLAC__StreamEncoderProtected));
- if(encoder->protected_ == 0) {
- free(encoder);
- return 0;
- }
-
- encoder->private_ = calloc(1, sizeof(FLAC__StreamEncoderPrivate));
- if(encoder->private_ == 0) {
- free(encoder->protected_);
- free(encoder);
- return 0;
- }
-
- encoder->private_->frame = FLAC__bitwriter_new();
- if(encoder->private_->frame == 0) {
- free(encoder->private_);
- free(encoder->protected_);
- free(encoder);
- return 0;
- }
-
- encoder->private_->file = 0;
-
- set_defaults_(encoder);
-
- encoder->private_->is_being_deleted = false;
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- encoder->private_->subframe_workspace_ptr[i][0] = &encoder->private_->subframe_workspace[i][0];
- encoder->private_->subframe_workspace_ptr[i][1] = &encoder->private_->subframe_workspace[i][1];
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->subframe_workspace_ptr_mid_side[i][0] = &encoder->private_->subframe_workspace_mid_side[i][0];
- encoder->private_->subframe_workspace_ptr_mid_side[i][1] = &encoder->private_->subframe_workspace_mid_side[i][1];
- }
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- encoder->private_->partitioned_rice_contents_workspace_ptr[i][0] = &encoder->private_->partitioned_rice_contents_workspace[i][0];
- encoder->private_->partitioned_rice_contents_workspace_ptr[i][1] = &encoder->private_->partitioned_rice_contents_workspace[i][1];
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][0] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0];
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][1] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1];
- }
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
- }
- for(i = 0; i < 2; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
- }
- for(i = 0; i < 2; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_extra[i]);
-
- encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
-
- return encoder;
-}
-
-FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
-{
- unsigned i;
-
- if (encoder == NULL)
- return ;
-
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->private_->frame);
-
- encoder->private_->is_being_deleted = true;
-
- (void)FLAC__stream_encoder_finish(encoder);
-
- if(0 != encoder->private_->verify.decoder)
- FLAC__stream_decoder_delete(encoder->private_->verify.decoder);
-
- for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
- }
- for(i = 0; i < 2; i++) {
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
- }
- for(i = 0; i < 2; i++)
- FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_extra[i]);
-
- FLAC__bitwriter_delete(encoder->private_->frame);
- free(encoder->private_);
- free(encoder->protected_);
- free(encoder);
-}
-
-/***********************************************************************
- *
- * Public class methods
- *
- ***********************************************************************/
-
-static FLAC__StreamEncoderInitStatus init_stream_internal_(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderReadCallback read_callback,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- unsigned i;
- FLAC__bool metadata_has_seektable, metadata_has_vorbis_comment, metadata_picture_has_type1, metadata_picture_has_type2;
-
- FLAC__ASSERT(0 != encoder);
-
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- if(FLAC__HAS_OGG == 0 && is_ogg)
- return FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
-
- if(0 == write_callback || (seek_callback && 0 == tell_callback))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS;
-
- if(encoder->protected_->channels == 0 || encoder->protected_->channels > FLAC__MAX_CHANNELS)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS;
-
- if(encoder->protected_->channels != 2) {
- encoder->protected_->do_mid_side_stereo = false;
- encoder->protected_->loose_mid_side_stereo = false;
- }
- else if(!encoder->protected_->do_mid_side_stereo)
- encoder->protected_->loose_mid_side_stereo = false;
-
- if(encoder->protected_->bits_per_sample >= 32)
- encoder->protected_->do_mid_side_stereo = false; /* since we currenty do 32-bit math, the side channel would have 33 bps and overflow */
-
- if(encoder->protected_->bits_per_sample < FLAC__MIN_BITS_PER_SAMPLE || encoder->protected_->bits_per_sample > FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE;
-
- if(!FLAC__format_sample_rate_is_valid(encoder->protected_->sample_rate))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE;
-
- if(encoder->protected_->blocksize == 0) {
- if(encoder->protected_->max_lpc_order == 0)
- encoder->protected_->blocksize = 1152;
- else
- encoder->protected_->blocksize = 4096;
- }
-
- if(encoder->protected_->blocksize < FLAC__MIN_BLOCK_SIZE || encoder->protected_->blocksize > FLAC__MAX_BLOCK_SIZE)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE;
-
- if(encoder->protected_->max_lpc_order > FLAC__MAX_LPC_ORDER)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER;
-
- if(encoder->protected_->blocksize < encoder->protected_->max_lpc_order)
- return FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER;
-
- if(encoder->protected_->qlp_coeff_precision == 0) {
- if(encoder->protected_->bits_per_sample < 16) {
- /* @@@ need some data about how to set this here w.r.t. blocksize and sample rate */
- /* @@@ until then we'll make a guess */
- encoder->protected_->qlp_coeff_precision = flac_max(FLAC__MIN_QLP_COEFF_PRECISION, 2 + encoder->protected_->bits_per_sample / 2);
- }
- else if(encoder->protected_->bits_per_sample == 16) {
- if(encoder->protected_->blocksize <= 192)
- encoder->protected_->qlp_coeff_precision = 7;
- else if(encoder->protected_->blocksize <= 384)
- encoder->protected_->qlp_coeff_precision = 8;
- else if(encoder->protected_->blocksize <= 576)
- encoder->protected_->qlp_coeff_precision = 9;
- else if(encoder->protected_->blocksize <= 1152)
- encoder->protected_->qlp_coeff_precision = 10;
- else if(encoder->protected_->blocksize <= 2304)
- encoder->protected_->qlp_coeff_precision = 11;
- else if(encoder->protected_->blocksize <= 4608)
- encoder->protected_->qlp_coeff_precision = 12;
- else
- encoder->protected_->qlp_coeff_precision = 13;
- }
- else {
- if(encoder->protected_->blocksize <= 384)
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-2;
- else if(encoder->protected_->blocksize <= 1152)
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-1;
- else
- encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
- }
- FLAC__ASSERT(encoder->protected_->qlp_coeff_precision <= FLAC__MAX_QLP_COEFF_PRECISION);
- }
- else if(encoder->protected_->qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION || encoder->protected_->qlp_coeff_precision > FLAC__MAX_QLP_COEFF_PRECISION)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION;
-
- if(encoder->protected_->streamable_subset) {
- if(!FLAC__format_blocksize_is_subset(encoder->protected_->blocksize, encoder->protected_->sample_rate))
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(!FLAC__format_sample_rate_is_subset(encoder->protected_->sample_rate))
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(
- encoder->protected_->bits_per_sample != 8 &&
- encoder->protected_->bits_per_sample != 12 &&
- encoder->protected_->bits_per_sample != 16 &&
- encoder->protected_->bits_per_sample != 20 &&
- encoder->protected_->bits_per_sample != 24
- )
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(encoder->protected_->max_residual_partition_order > FLAC__SUBSET_MAX_RICE_PARTITION_ORDER)
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- if(
- encoder->protected_->sample_rate <= 48000 &&
- (
- encoder->protected_->blocksize > FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ ||
- encoder->protected_->max_lpc_order > FLAC__SUBSET_MAX_LPC_ORDER_48000HZ
- )
- ) {
- return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
- }
- }
-
- if(encoder->protected_->max_residual_partition_order >= (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- encoder->protected_->max_residual_partition_order = (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN) - 1;
- if(encoder->protected_->min_residual_partition_order >= encoder->protected_->max_residual_partition_order)
- encoder->protected_->min_residual_partition_order = encoder->protected_->max_residual_partition_order;
-
-#if FLAC__HAS_OGG
- /* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
- if(is_ogg && 0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 1) {
- unsigned i1;
- for(i1 = 1; i1 < encoder->protected_->num_metadata_blocks; i1++) {
- if(0 != encoder->protected_->metadata[i1] && encoder->protected_->metadata[i1]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- FLAC__StreamMetadata *vc = encoder->protected_->metadata[i1];
- for( ; i1 > 0; i1--)
- encoder->protected_->metadata[i1] = encoder->protected_->metadata[i1-1];
- encoder->protected_->metadata[0] = vc;
- break;
- }
- }
- }
-#endif
- /* keep track of any SEEKTABLE block */
- if(0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0) {
- unsigned i2;
- for(i2 = 0; i2 < encoder->protected_->num_metadata_blocks; i2++) {
- if(0 != encoder->protected_->metadata[i2] && encoder->protected_->metadata[i2]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
- encoder->private_->seek_table = &encoder->protected_->metadata[i2]->data.seek_table;
- break; /* take only the first one */
- }
- }
- }
-
- /* validate metadata */
- if(0 == encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_seektable = false;
- metadata_has_vorbis_comment = false;
- metadata_picture_has_type1 = false;
- metadata_picture_has_type2 = false;
- for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
- const FLAC__StreamMetadata *m = encoder->protected_->metadata[i];
- if(m->type == FLAC__METADATA_TYPE_STREAMINFO)
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- else if(m->type == FLAC__METADATA_TYPE_SEEKTABLE) {
- if(metadata_has_seektable) /* only one is allowed */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_seektable = true;
- if(!FLAC__format_seektable_is_legal(&m->data.seek_table))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- if(metadata_has_vorbis_comment) /* only one is allowed */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_has_vorbis_comment = true;
- }
- else if(m->type == FLAC__METADATA_TYPE_CUESHEET) {
- if(!FLAC__format_cuesheet_is_legal(&m->data.cue_sheet, m->data.cue_sheet.is_cd, /*violation=*/0))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->type == FLAC__METADATA_TYPE_PICTURE) {
- if(!FLAC__format_picture_is_legal(&m->data.picture, /*violation=*/0))
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
- if(metadata_picture_has_type1) /* there should only be 1 per stream */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_picture_has_type1 = true;
- /* standard icon must be 32x32 pixel PNG */
- if(
- m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
- (
- (strcmp(m->data.picture.mime_type, "image/png") && strcmp(m->data.picture.mime_type, "-->")) ||
- m->data.picture.width != 32 ||
- m->data.picture.height != 32
- )
- )
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- }
- else if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
- if(metadata_picture_has_type2) /* there should only be 1 per stream */
- return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
- metadata_picture_has_type2 = true;
- }
- }
- }
-
- encoder->private_->input_capacity = 0;
- for(i = 0; i < encoder->protected_->channels; i++) {
- encoder->private_->integer_signal_unaligned[i] = encoder->private_->integer_signal[i] = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->real_signal_unaligned[i] = encoder->private_->real_signal[i] = 0;
-#endif
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->integer_signal_mid_side_unaligned[i] = encoder->private_->integer_signal_mid_side[i] = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->real_signal_mid_side_unaligned[i] = encoder->private_->real_signal_mid_side[i] = 0;
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- for(i = 0; i < encoder->protected_->num_apodizations; i++)
- encoder->private_->window_unaligned[i] = encoder->private_->window[i] = 0;
- encoder->private_->windowed_signal_unaligned = encoder->private_->windowed_signal = 0;
-#endif
- for(i = 0; i < encoder->protected_->channels; i++) {
- encoder->private_->residual_workspace_unaligned[i][0] = encoder->private_->residual_workspace[i][0] = 0;
- encoder->private_->residual_workspace_unaligned[i][1] = encoder->private_->residual_workspace[i][1] = 0;
- encoder->private_->best_subframe[i] = 0;
- }
- for(i = 0; i < 2; i++) {
- encoder->private_->residual_workspace_mid_side_unaligned[i][0] = encoder->private_->residual_workspace_mid_side[i][0] = 0;
- encoder->private_->residual_workspace_mid_side_unaligned[i][1] = encoder->private_->residual_workspace_mid_side[i][1] = 0;
- encoder->private_->best_subframe_mid_side[i] = 0;
- }
- encoder->private_->abs_residual_partition_sums_unaligned = encoder->private_->abs_residual_partition_sums = 0;
- encoder->private_->raw_bits_per_partition_unaligned = encoder->private_->raw_bits_per_partition = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->loose_mid_side_stereo_frames = (unsigned)((double)encoder->protected_->sample_rate * 0.4 / (double)encoder->protected_->blocksize + 0.5);
-#else
- /* 26214 is the approximate fixed-point equivalent to 0.4 (0.4 * 2^16) */
- /* sample rate can be up to 655350 Hz, and thus use 20 bits, so we do the multiply÷ by hand */
- FLAC__ASSERT(FLAC__MAX_SAMPLE_RATE <= 655350);
- FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535);
- FLAC__ASSERT(encoder->protected_->sample_rate <= 655350);
- FLAC__ASSERT(encoder->protected_->blocksize <= 65535);
- encoder->private_->loose_mid_side_stereo_frames = (unsigned)FLAC__fixedpoint_trunc((((FLAC__uint64)(encoder->protected_->sample_rate) * (FLAC__uint64)(26214)) << 16) / (encoder->protected_->blocksize<<16) + FLAC__FP_ONE_HALF);
-#endif
- if(encoder->private_->loose_mid_side_stereo_frames == 0)
- encoder->private_->loose_mid_side_stereo_frames = 1;
- encoder->private_->loose_mid_side_stereo_frame_count = 0;
- encoder->private_->current_sample_number = 0;
- encoder->private_->current_frame_number = 0;
-
- /*
- * get the CPU info and set the function pointers
- */
- FLAC__cpu_info(&encoder->private_->cpuinfo);
- /* first default to the non-asm routines */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
-#endif
- encoder->private_->local_precompute_partition_info_sums = precompute_partition_info_sums_;
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor;
- encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients;
-#endif
- /* now override with asm where appropriate */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-# ifndef FLAC__NO_ASM
- if(encoder->private_->cpuinfo.use_asm) {
-# ifdef FLAC__CPU_IA32
- FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
-# ifdef FLAC__HAS_NASM
- if(encoder->private_->cpuinfo.ia32.sse) {
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old;
- else if(encoder->protected_->max_lpc_order < 16)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old;
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
- }
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
-
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32; /* OPT_IA32: was really necessary for GCC < 4.9 */
- if(encoder->private_->cpuinfo.ia32.mmx) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx;
- }
- else {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
- }
-
- if(encoder->private_->cpuinfo.ia32.mmx && encoder->private_->cpuinfo.ia32.cmov)
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov;
-# endif /* FLAC__HAS_NASM */
-# if FLAC__HAS_X86INTRIN
-# if defined FLAC__SSE_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.sse) {
- if(encoder->private_->cpuinfo.ia32.sse42 || !encoder->private_->cpuinfo.ia32.intel) { /* use new autocorrelation functions */
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new;
- else if(encoder->protected_->max_lpc_order < 16)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new;
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
- }
- else { /* use old autocorrelation functions */
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old;
- else if(encoder->protected_->max_lpc_order < 16)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old;
- else
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
- }
- }
-# endif
-
-# ifdef FLAC__SSE2_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.sse2) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
- }
-# endif
-# ifdef FLAC__SSE4_1_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.sse41) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41;
- }
-# endif
-# ifdef FLAC__AVX2_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.avx2) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
- }
-# endif
-
-# ifdef FLAC__SSE2_SUPPORTED
- if (encoder->private_->cpuinfo.ia32.sse2) {
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_sse2;
- encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
- }
-# endif
-# ifdef FLAC__SSSE3_SUPPORTED
- if (encoder->private_->cpuinfo.ia32.ssse3) {
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_ssse3;
- encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
- }
-# endif
-# endif /* FLAC__HAS_X86INTRIN */
-# elif defined FLAC__CPU_X86_64
- FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_X86_64);
-# if FLAC__HAS_X86INTRIN
-# ifdef FLAC__SSE_SUPPORTED
- if(encoder->private_->cpuinfo.x86.sse42 || !encoder->private_->cpuinfo.x86.intel) { /* use new autocorrelation functions */
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new;
- else if(encoder->protected_->max_lpc_order < 16)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new;
- }
- else {
- if(encoder->protected_->max_lpc_order < 4)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old;
- else if(encoder->protected_->max_lpc_order < 8)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old;
- else if(encoder->protected_->max_lpc_order < 12)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old;
- else if(encoder->protected_->max_lpc_order < 16)
- encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old;
- }
-# endif
-
-# ifdef FLAC__SSE2_SUPPORTED
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
-# endif
-# ifdef FLAC__SSE4_1_SUPPORTED
- if(encoder->private_->cpuinfo.x86.sse41) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
- }
-# endif
-# ifdef FLAC__AVX2_SUPPORTED
- if(encoder->private_->cpuinfo.x86.avx2) {
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
- }
-# endif
-
-# ifdef FLAC__SSE2_SUPPORTED
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_sse2;
- encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
-# endif
-# ifdef FLAC__SSSE3_SUPPORTED
- if (encoder->private_->cpuinfo.x86.ssse3) {
- encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_ssse3;
- encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
- }
-# endif
-# endif /* FLAC__HAS_X86INTRIN */
-# endif /* FLAC__CPU_... */
- }
-# endif /* !FLAC__NO_ASM */
-#endif /* !FLAC__INTEGER_ONLY_LIBRARY */
-#if !defined FLAC__NO_ASM && FLAC__HAS_X86INTRIN
- if(encoder->private_->cpuinfo.use_asm) {
-# if defined FLAC__CPU_IA32
-# ifdef FLAC__SSE2_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.sse2)
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
-# endif
-# ifdef FLAC__SSSE3_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.ssse3)
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
-# endif
-# ifdef FLAC__AVX2_SUPPORTED
- if(encoder->private_->cpuinfo.ia32.avx2)
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
-# endif
-# elif defined FLAC__CPU_X86_64
-# ifdef FLAC__SSE2_SUPPORTED
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
-# endif
-# ifdef FLAC__SSSE3_SUPPORTED
- if(encoder->private_->cpuinfo.x86.ssse3)
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
-# endif
-# ifdef FLAC__AVX2_SUPPORTED
- if(encoder->private_->cpuinfo.x86.avx2)
- encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
-# endif
-# endif /* FLAC__CPU_... */
- }
-#endif /* !FLAC__NO_ASM && FLAC__HAS_X86INTRIN */
-
- /* set state to OK; from here on, errors are fatal and we'll override the state then */
- encoder->protected_->state = FLAC__STREAM_ENCODER_OK;
-
-#if FLAC__HAS_OGG
- encoder->private_->is_ogg = is_ogg;
- if(is_ogg && !FLAC__ogg_encoder_aspect_init(&encoder->protected_->ogg_encoder_aspect)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-#endif
-
- encoder->private_->read_callback = read_callback;
- encoder->private_->write_callback = write_callback;
- encoder->private_->seek_callback = seek_callback;
- encoder->private_->tell_callback = tell_callback;
- encoder->private_->metadata_callback = metadata_callback;
- encoder->private_->client_data = client_data;
-
- if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- if(!FLAC__bitwriter_init(encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * Set up the verify stuff if necessary
- */
- if(encoder->protected_->verify) {
- /*
- * First, set up the fifo which will hold the
- * original signal to compare against
- */
- encoder->private_->verify.input_fifo.size = encoder->protected_->blocksize+OVERREAD_;
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 == (encoder->private_->verify.input_fifo.data[i] = safe_malloc_mul_2op_p(sizeof(FLAC__int32), /*times*/encoder->private_->verify.input_fifo.size))) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
- encoder->private_->verify.input_fifo.tail = 0;
-
- /*
- * Now set up a stream decoder for verification
- */
- if(0 == encoder->private_->verify.decoder) {
- encoder->private_->verify.decoder = FLAC__stream_decoder_new();
- if(0 == encoder->private_->verify.decoder) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
-
- if(FLAC__stream_decoder_init_stream(encoder->private_->verify.decoder, verify_read_callback_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, verify_write_callback_, verify_metadata_callback_, verify_error_callback_, /*client_data=*/encoder) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
- encoder->private_->verify.error_stats.absolute_sample = 0;
- encoder->private_->verify.error_stats.frame_number = 0;
- encoder->private_->verify.error_stats.channel = 0;
- encoder->private_->verify.error_stats.sample = 0;
- encoder->private_->verify.error_stats.expected = 0;
- encoder->private_->verify.error_stats.got = 0;
-
- /*
- * These must be done before we write any metadata, because that
- * calls the write_callback, which uses these values.
- */
- encoder->private_->first_seekpoint_to_check = 0;
- encoder->private_->samples_written = 0;
- encoder->protected_->streaminfo_offset = 0;
- encoder->protected_->seektable_offset = 0;
- encoder->protected_->audio_offset = 0;
-
- /*
- * write the stream header
- */
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_MAGIC;
- if(!FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, FLAC__STREAM_SYNC, FLAC__STREAM_SYNC_LEN)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * write the STREAMINFO metadata block
- */
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_METADATA;
- encoder->private_->streaminfo.type = FLAC__METADATA_TYPE_STREAMINFO;
- encoder->private_->streaminfo.is_last = false; /* we will have at a minimum a VORBIS_COMMENT afterwards */
- encoder->private_->streaminfo.length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
- encoder->private_->streaminfo.data.stream_info.min_blocksize = encoder->protected_->blocksize; /* this encoder uses the same blocksize for the whole stream */
- encoder->private_->streaminfo.data.stream_info.max_blocksize = encoder->protected_->blocksize;
- encoder->private_->streaminfo.data.stream_info.min_framesize = 0; /* we don't know this yet; have to fill it in later */
- encoder->private_->streaminfo.data.stream_info.max_framesize = 0; /* we don't know this yet; have to fill it in later */
- encoder->private_->streaminfo.data.stream_info.sample_rate = encoder->protected_->sample_rate;
- encoder->private_->streaminfo.data.stream_info.channels = encoder->protected_->channels;
- encoder->private_->streaminfo.data.stream_info.bits_per_sample = encoder->protected_->bits_per_sample;
- encoder->private_->streaminfo.data.stream_info.total_samples = encoder->protected_->total_samples_estimate; /* we will replace this later with the real total */
- memset(encoder->private_->streaminfo.data.stream_info.md5sum, 0, 16); /* we don't know this yet; have to fill it in later */
- if(encoder->protected_->do_md5)
- FLAC__MD5Init(&encoder->private_->md5context);
- if(!FLAC__add_metadata_block(&encoder->private_->streaminfo, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * Now that the STREAMINFO block is written, we can init this to an
- * absurdly-high value...
- */
- encoder->private_->streaminfo.data.stream_info.min_framesize = (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN) - 1;
- /* ... and clear this to 0 */
- encoder->private_->streaminfo.data.stream_info.total_samples = 0;
-
- /*
- * Check to see if the supplied metadata contains a VORBIS_COMMENT;
- * if not, we will write an empty one (FLAC__add_metadata_block()
- * automatically supplies the vendor string).
- *
- * WATCHOUT: the Ogg FLAC mapping requires us to write this block after
- * the STREAMINFO. (In the case that metadata_has_vorbis_comment is
- * true it will have already insured that the metadata list is properly
- * ordered.)
- */
- if(!metadata_has_vorbis_comment) {
- FLAC__StreamMetadata vorbis_comment;
- vorbis_comment.type = FLAC__METADATA_TYPE_VORBIS_COMMENT;
- vorbis_comment.is_last = (encoder->protected_->num_metadata_blocks == 0);
- vorbis_comment.length = 4 + 4; /* MAGIC NUMBER */
- vorbis_comment.data.vorbis_comment.vendor_string.length = 0;
- vorbis_comment.data.vorbis_comment.vendor_string.entry = 0;
- vorbis_comment.data.vorbis_comment.num_comments = 0;
- vorbis_comment.data.vorbis_comment.comments = 0;
- if(!FLAC__add_metadata_block(&vorbis_comment, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
-
- /*
- * write the user's metadata blocks
- */
- for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
- encoder->protected_->metadata[i]->is_last = (i == encoder->protected_->num_metadata_blocks - 1);
- if(!FLAC__add_metadata_block(encoder->protected_->metadata[i], encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
- /* the above function sets the state for us in case of an error */
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
- }
-
- /* now that all the metadata is written, we save the stream offset */
- if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &encoder->protected_->audio_offset, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) { /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- if(encoder->protected_->verify)
- encoder->private_->verify.state_hint = ENCODER_IN_AUDIO;
-
- return FLAC__STREAM_ENCODER_INIT_STATUS_OK;
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- encoder,
- /*read_callback=*/0,
- write_callback,
- seek_callback,
- tell_callback,
- metadata_callback,
- client_data,
- /*is_ogg=*/false
- );
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(
- FLAC__StreamEncoder *encoder,
- FLAC__StreamEncoderReadCallback read_callback,
- FLAC__StreamEncoderWriteCallback write_callback,
- FLAC__StreamEncoderSeekCallback seek_callback,
- FLAC__StreamEncoderTellCallback tell_callback,
- FLAC__StreamEncoderMetadataCallback metadata_callback,
- void *client_data
-)
-{
- return init_stream_internal_(
- encoder,
- read_callback,
- write_callback,
- seek_callback,
- tell_callback,
- metadata_callback,
- client_data,
- /*is_ogg=*/true
- );
-}
-
-static FLAC__StreamEncoderInitStatus init_FILE_internal_(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FLAC__StreamEncoderInitStatus init_status;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != file);
-
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- /* double protection */
- if(file == 0) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * must assign the FILE pointer before any further error can occur in
- * this routine.
- */
- if(file == stdout)
- file = get_binary_stdout_(); /* just to be safe */
-
-#ifdef _WIN32
- /*
- * Windows can suffer quite badly from disk fragmentation. This can be
- * reduced significantly by setting the output buffer size to be 10MB.
- */
- if(GetFileType((HANDLE)_get_osfhandle(_fileno(file))) == FILE_TYPE_DISK)
- setvbuf(file, NULL, _IOFBF, 10*1024*1024);
-#endif
- encoder->private_->file = file;
-
- encoder->private_->progress_callback = progress_callback;
- encoder->private_->bytes_written = 0;
- encoder->private_->samples_written = 0;
- encoder->private_->frames_written = 0;
-
- init_status = init_stream_internal_(
- encoder,
- encoder->private_->file == stdout? 0 : is_ogg? file_read_callback_ : 0,
- file_write_callback_,
- encoder->private_->file == stdout? 0 : file_seek_callback_,
- encoder->private_->file == stdout? 0 : file_tell_callback_,
- /*metadata_callback=*/0,
- client_data,
- is_ogg
- );
- if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
- /* the above function sets the state for us in case of an error */
- return init_status;
- }
-
- {
- unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder);
-
- FLAC__ASSERT(blocksize != 0);
- encoder->private_->total_frames_estimate = (unsigned)((FLAC__stream_encoder_get_total_samples_estimate(encoder) + blocksize - 1) / blocksize);
- }
-
- return init_status;
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(
- FLAC__StreamEncoder *encoder,
- FILE *file,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/true);
-}
-
-static FLAC__StreamEncoderInitStatus init_file_internal_(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data,
- FLAC__bool is_ogg
-)
-{
- FILE *file;
-
- FLAC__ASSERT(0 != encoder);
-
- /*
- * To make sure that our file does not go unclosed after an error, we
- * have to do the same entrance checks here that are later performed
- * in FLAC__stream_encoder_init_FILE() before the FILE* is assigned.
- */
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
-
- file = filename? flac_fopen(filename, "w+b") : stdout;
-
- if(file == 0) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
- return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
- }
-
- return init_FILE_internal_(encoder, file, progress_callback, client_data, is_ogg);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/false);
-}
-
-FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(
- FLAC__StreamEncoder *encoder,
- const char *filename,
- FLAC__StreamEncoderProgressCallback progress_callback,
- void *client_data
-)
-{
- return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/true);
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder)
-{
- FLAC__bool error = false;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
-
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED)
- return true;
-
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK && !encoder->private_->is_being_deleted) {
- if(encoder->private_->current_sample_number != 0) {
- const FLAC__bool is_fractional_block = encoder->protected_->blocksize != encoder->private_->current_sample_number;
- encoder->protected_->blocksize = encoder->private_->current_sample_number;
- if(!process_frame_(encoder, is_fractional_block, /*is_last_block=*/true))
- error = true;
- }
- }
-
- if(encoder->protected_->do_md5)
- FLAC__MD5Final(encoder->private_->streaminfo.data.stream_info.md5sum, &encoder->private_->md5context);
-
- if(!encoder->private_->is_being_deleted) {
- if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK) {
- if(encoder->private_->seek_callback) {
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg)
- update_ogg_metadata_(encoder);
- else
-#endif
- update_metadata_(encoder);
-
- /* check if an error occurred while updating metadata */
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
- error = true;
- }
- if(encoder->private_->metadata_callback)
- encoder->private_->metadata_callback(encoder, &encoder->private_->streaminfo, encoder->private_->client_data);
- }
-
- if(encoder->protected_->verify && 0 != encoder->private_->verify.decoder && !FLAC__stream_decoder_finish(encoder->private_->verify.decoder)) {
- if(!error)
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
- error = true;
- }
- }
-
- if(0 != encoder->private_->file) {
- if(encoder->private_->file != stdout)
- fclose(encoder->private_->file);
- encoder->private_->file = 0;
- }
-
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg)
- FLAC__ogg_encoder_aspect_finish(&encoder->protected_->ogg_encoder_aspect);
-#endif
-
- free_(encoder);
- set_defaults_(encoder);
-
- if(!error)
- encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
-
- return !error;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if FLAC__HAS_OGG
- /* can't check encoder->private_->is_ogg since that's not set until init time */
- FLAC__ogg_encoder_aspect_set_serial_number(&encoder->protected_->ogg_encoder_aspect, value);
- return true;
-#else
- (void)value;
- return false;
-#endif
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#ifndef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
- encoder->protected_->verify = value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->streamable_subset = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_md5 = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->channels = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->bits_per_sample = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->sample_rate = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__bool ok = true;
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- if(value >= sizeof(compression_levels_)/sizeof(compression_levels_[0]))
- value = sizeof(compression_levels_)/sizeof(compression_levels_[0]) - 1;
- ok &= FLAC__stream_encoder_set_do_mid_side_stereo (encoder, compression_levels_[value].do_mid_side_stereo);
- ok &= FLAC__stream_encoder_set_loose_mid_side_stereo (encoder, compression_levels_[value].loose_mid_side_stereo);
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 1
- ok &= FLAC__stream_encoder_set_apodization (encoder, compression_levels_[value].apodization);
-#else
- /* equivalent to -A tukey(0.5) */
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
-#endif
-#endif
- ok &= FLAC__stream_encoder_set_max_lpc_order (encoder, compression_levels_[value].max_lpc_order);
- ok &= FLAC__stream_encoder_set_qlp_coeff_precision (encoder, compression_levels_[value].qlp_coeff_precision);
- ok &= FLAC__stream_encoder_set_do_qlp_coeff_prec_search (encoder, compression_levels_[value].do_qlp_coeff_prec_search);
- ok &= FLAC__stream_encoder_set_do_escape_coding (encoder, compression_levels_[value].do_escape_coding);
- ok &= FLAC__stream_encoder_set_do_exhaustive_model_search (encoder, compression_levels_[value].do_exhaustive_model_search);
- ok &= FLAC__stream_encoder_set_min_residual_partition_order(encoder, compression_levels_[value].min_residual_partition_order);
- ok &= FLAC__stream_encoder_set_max_residual_partition_order(encoder, compression_levels_[value].max_residual_partition_order);
- ok &= FLAC__stream_encoder_set_rice_parameter_search_dist (encoder, compression_levels_[value].rice_parameter_search_dist);
- return ok;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->blocksize = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_mid_side_stereo = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->loose_mid_side_stereo = value;
- return true;
-}
-
-/*@@@@add to tests*/
-FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(0 != specification);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#ifdef FLAC__INTEGER_ONLY_LIBRARY
- (void)specification; /* silently ignore since we haven't integerized; will always use a rectangular window */
-#else
- encoder->protected_->num_apodizations = 0;
- while(1) {
- const char *s = strchr(specification, ';');
- const size_t n = s? (size_t)(s - specification) : strlen(specification);
- if (n==8 && 0 == strncmp("bartlett" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT;
- else if(n==13 && 0 == strncmp("bartlett_hann", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT_HANN;
- else if(n==8 && 0 == strncmp("blackman" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN;
- else if(n==26 && 0 == strncmp("blackman_harris_4term_92db", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE;
- else if(n==6 && 0 == strncmp("connes" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_CONNES;
- else if(n==7 && 0 == strncmp("flattop" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_FLATTOP;
- else if(n>7 && 0 == strncmp("gauss(" , specification, 6)) {
- FLAC__real stddev = (FLAC__real)strtod(specification+6, 0);
- if (stddev > 0.0 && stddev <= 0.5) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.gauss.stddev = stddev;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_GAUSS;
- }
- }
- else if(n==7 && 0 == strncmp("hamming" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HAMMING;
- else if(n==4 && 0 == strncmp("hann" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HANN;
- else if(n==13 && 0 == strncmp("kaiser_bessel", specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_KAISER_BESSEL;
- else if(n==7 && 0 == strncmp("nuttall" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_NUTTALL;
- else if(n==9 && 0 == strncmp("rectangle" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_RECTANGLE;
- else if(n==8 && 0 == strncmp("triangle" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TRIANGLE;
- else if(n>7 && 0 == strncmp("tukey(" , specification, 6)) {
- FLAC__real p = (FLAC__real)strtod(specification+6, 0);
- if (p >= 0.0 && p <= 1.0) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
- }
- }
- else if(n>15 && 0 == strncmp("partial_tukey(" , specification, 14)) {
- FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+14, 0);
- const char *si_1 = strchr(specification, '/');
- FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.1f;
- FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
- const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
- FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
-
- if (tukey_parts <= 1) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
- }else if (encoder->protected_->num_apodizations + tukey_parts < 32){
- FLAC__int32 m;
- for(m = 0; m < tukey_parts; m++){
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PARTIAL_TUKEY;
- }
- }
- }
- else if(n>16 && 0 == strncmp("punchout_tukey(" , specification, 15)) {
- FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+15, 0);
- const char *si_1 = strchr(specification, '/');
- FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.2f;
- FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
- const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
- FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
-
- if (tukey_parts <= 1) {
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
- }else if (encoder->protected_->num_apodizations + tukey_parts < 32){
- FLAC__int32 m;
- for(m = 0; m < tukey_parts; m++){
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
- encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PUNCHOUT_TUKEY;
- }
- }
- }
- else if(n==5 && 0 == strncmp("welch" , specification, n))
- encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_WELCH;
- if (encoder->protected_->num_apodizations == 32)
- break;
- if (s)
- specification = s+1;
- else
- break;
- }
- if(encoder->protected_->num_apodizations == 0) {
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
- }
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->max_lpc_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->qlp_coeff_precision = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_qlp_coeff_prec_search = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if 0
- /*@@@ deprecated: */
- encoder->protected_->do_escape_coding = value;
-#else
- (void)value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->do_exhaustive_model_search = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->min_residual_partition_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->protected_->max_residual_partition_order = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, unsigned value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
-#if 0
- /*@@@ deprecated: */
- encoder->protected_->rice_parameter_search_dist = value;
-#else
- (void)value;
-#endif
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- value = flac_min(value, (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN) - 1);
- encoder->protected_->total_samples_estimate = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- if(0 == metadata)
- num_blocks = 0;
- if(0 == num_blocks)
- metadata = 0;
- /* realloc() does not do exactly what we want so... */
- if(encoder->protected_->metadata) {
- free(encoder->protected_->metadata);
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
- }
- if(num_blocks) {
- FLAC__StreamMetadata **m;
- if(0 == (m = safe_malloc_mul_2op_p(sizeof(m[0]), /*times*/num_blocks)))
- return false;
- memcpy(m, metadata, sizeof(m[0]) * num_blocks);
- encoder->protected_->metadata = m;
- encoder->protected_->num_metadata_blocks = num_blocks;
- }
-#if FLAC__HAS_OGG
- if(!FLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
- return false;
-#endif
- return true;
-}
-
-/*
- * These three functions are not static, but not publically exposed in
- * include/FLAC/ either. They are used by the test suite.
- */
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_constant_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_fixed_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
- return false;
- encoder->private_->disable_verbatim_subframes = value;
- return true;
-}
-
-FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->state;
-}
-
-FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->verify)
- return FLAC__stream_decoder_get_state(encoder->private_->verify.decoder);
- else
- return FLAC__STREAM_DECODER_UNINITIALIZED;
-}
-
-FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR)
- return FLAC__StreamEncoderStateString[encoder->protected_->state];
- else
- return FLAC__stream_decoder_get_resolved_state_string(encoder->private_->verify.decoder);
-}
-
-FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- if(0 != absolute_sample)
- *absolute_sample = encoder->private_->verify.error_stats.absolute_sample;
- if(0 != frame_number)
- *frame_number = encoder->private_->verify.error_stats.frame_number;
- if(0 != channel)
- *channel = encoder->private_->verify.error_stats.channel;
- if(0 != sample)
- *sample = encoder->private_->verify.error_stats.sample;
- if(0 != expected)
- *expected = encoder->private_->verify.error_stats.expected;
- if(0 != got)
- *got = encoder->private_->verify.error_stats.got;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->verify;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->streamable_subset;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_md5;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->channels;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->bits_per_sample;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->sample_rate;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->blocksize;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_mid_side_stereo;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->loose_mid_side_stereo;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->max_lpc_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->qlp_coeff_precision;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_qlp_coeff_prec_search;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_escape_coding;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->do_exhaustive_model_search;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->min_residual_partition_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->max_residual_partition_order;
-}
-
-FLAC_API unsigned FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->rice_parameter_search_dist;
-}
-
-FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- return encoder->protected_->total_samples_estimate;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
-{
- unsigned i, j = 0, channel;
- const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- do {
- const unsigned n = flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j);
-
- if(encoder->protected_->verify)
- append_to_verify_fifo_(&encoder->private_->verify.input_fifo, buffer, j, channels, n);
-
- for(channel = 0; channel < channels; channel++) {
- if (buffer[channel] == NULL) {
- return false;
- }
- memcpy(&encoder->private_->integer_signal[channel][encoder->private_->current_sample_number], &buffer[channel][j], sizeof(buffer[channel][0]) * n);
- }
-
- if(encoder->protected_->do_mid_side_stereo) {
- FLAC__ASSERT(channels == 2);
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- encoder->private_->integer_signal_mid_side[1][i] = buffer[0][j] - buffer[1][j];
- encoder->private_->integer_signal_mid_side[0][i] = (buffer[0][j] + buffer[1][j]) >> 1; /* NOTE: not the same as 'mid = (buffer[0][j] + buffer[1][j]) / 2' ! */
- }
- }
- else
- j += n;
-
- encoder->private_->current_sample_number += n;
-
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(encoder->private_->current_sample_number > blocksize) {
- FLAC__ASSERT(encoder->private_->current_sample_number == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
- if(encoder->protected_->do_mid_side_stereo) {
- encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
- encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
- }
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
-
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
-{
- unsigned i, j, k, channel;
- FLAC__int32 x, mid, side;
- const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
-
- FLAC__ASSERT(0 != encoder);
- FLAC__ASSERT(0 != encoder->private_);
- FLAC__ASSERT(0 != encoder->protected_);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- j = k = 0;
- /*
- * we have several flavors of the same basic loop, optimized for
- * different conditions:
- */
- if(encoder->protected_->do_mid_side_stereo && channels == 2) {
- /*
- * stereo coding: unroll channel loop
- */
- do {
- if(encoder->protected_->verify)
- append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
-
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- encoder->private_->integer_signal[0][i] = mid = side = buffer[k++];
- x = buffer[k++];
- encoder->private_->integer_signal[1][i] = x;
- mid += x;
- side -= x;
- mid >>= 1; /* NOTE: not the same as 'mid = (left + right) / 2' ! */
- encoder->private_->integer_signal_mid_side[1][i] = side;
- encoder->private_->integer_signal_mid_side[0][i] = mid;
- }
- encoder->private_->current_sample_number = i;
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(i > blocksize) {
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- FLAC__ASSERT(i == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- encoder->private_->integer_signal[0][0] = encoder->private_->integer_signal[0][blocksize];
- encoder->private_->integer_signal[1][0] = encoder->private_->integer_signal[1][blocksize];
- encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
- encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
- }
- else {
- /*
- * independent channel coding: buffer each channel in inner loop
- */
- do {
- if(encoder->protected_->verify)
- append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
-
- /* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
- for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][i] = buffer[k++];
- }
- encoder->private_->current_sample_number = i;
- /* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
- if(i > blocksize) {
- if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
- return false;
- /* move unprocessed overread samples to beginnings of arrays */
- FLAC__ASSERT(i == blocksize+OVERREAD_);
- FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
- for(channel = 0; channel < channels; channel++)
- encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
- encoder->private_->current_sample_number = 1;
- }
- } while(j < samples);
- }
-
- return true;
-}
-
-/***********************************************************************
- *
- * Private class methods
- *
- ***********************************************************************/
-
-void set_defaults_(FLAC__StreamEncoder *encoder)
-{
- FLAC__ASSERT(0 != encoder);
-
-#ifdef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
- encoder->protected_->verify = true;
-#else
- encoder->protected_->verify = false;
-#endif
- encoder->protected_->streamable_subset = true;
- encoder->protected_->do_md5 = true;
- encoder->protected_->do_mid_side_stereo = false;
- encoder->protected_->loose_mid_side_stereo = false;
- encoder->protected_->channels = 2;
- encoder->protected_->bits_per_sample = 16;
- encoder->protected_->sample_rate = 44100;
- encoder->protected_->blocksize = 0;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- encoder->protected_->num_apodizations = 1;
- encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
- encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
-#endif
- encoder->protected_->max_lpc_order = 0;
- encoder->protected_->qlp_coeff_precision = 0;
- encoder->protected_->do_qlp_coeff_prec_search = false;
- encoder->protected_->do_exhaustive_model_search = false;
- encoder->protected_->do_escape_coding = false;
- encoder->protected_->min_residual_partition_order = 0;
- encoder->protected_->max_residual_partition_order = 0;
- encoder->protected_->rice_parameter_search_dist = 0;
- encoder->protected_->total_samples_estimate = 0;
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
-
- encoder->private_->seek_table = 0;
- encoder->private_->disable_constant_subframes = false;
- encoder->private_->disable_fixed_subframes = false;
- encoder->private_->disable_verbatim_subframes = false;
- encoder->private_->is_ogg = false;
- encoder->private_->read_callback = 0;
- encoder->private_->write_callback = 0;
- encoder->private_->seek_callback = 0;
- encoder->private_->tell_callback = 0;
- encoder->private_->metadata_callback = 0;
- encoder->private_->progress_callback = 0;
- encoder->private_->client_data = 0;
-
-#if FLAC__HAS_OGG
- FLAC__ogg_encoder_aspect_set_defaults(&encoder->protected_->ogg_encoder_aspect);
-#endif
-
- FLAC__stream_encoder_set_compression_level(encoder, 5);
-}
-
-void free_(FLAC__StreamEncoder *encoder)
-{
- unsigned i, channel;
-
- FLAC__ASSERT(0 != encoder);
- if(encoder->protected_->metadata) {
- free(encoder->protected_->metadata);
- encoder->protected_->metadata = 0;
- encoder->protected_->num_metadata_blocks = 0;
- }
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 != encoder->private_->integer_signal_unaligned[i]) {
- free(encoder->private_->integer_signal_unaligned[i]);
- encoder->private_->integer_signal_unaligned[i] = 0;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(0 != encoder->private_->real_signal_unaligned[i]) {
- free(encoder->private_->real_signal_unaligned[i]);
- encoder->private_->real_signal_unaligned[i] = 0;
- }
-#endif
- }
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
- free(encoder->private_->integer_signal_mid_side_unaligned[i]);
- encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
- free(encoder->private_->real_signal_mid_side_unaligned[i]);
- encoder->private_->real_signal_mid_side_unaligned[i] = 0;
- }
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- for(i = 0; i < encoder->protected_->num_apodizations; i++) {
- if(0 != encoder->private_->window_unaligned[i]) {
- free(encoder->private_->window_unaligned[i]);
- encoder->private_->window_unaligned[i] = 0;
- }
- }
- if(0 != encoder->private_->windowed_signal_unaligned) {
- free(encoder->private_->windowed_signal_unaligned);
- encoder->private_->windowed_signal_unaligned = 0;
- }
-#endif
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
- free(encoder->private_->residual_workspace_unaligned[channel][i]);
- encoder->private_->residual_workspace_unaligned[channel][i] = 0;
- }
- }
- }
- for(channel = 0; channel < 2; channel++) {
- for(i = 0; i < 2; i++) {
- if(0 != encoder->private_->residual_workspace_mid_side_unaligned[channel][i]) {
- free(encoder->private_->residual_workspace_mid_side_unaligned[channel][i]);
- encoder->private_->residual_workspace_mid_side_unaligned[channel][i] = 0;
- }
- }
- }
- if(0 != encoder->private_->abs_residual_partition_sums_unaligned) {
- free(encoder->private_->abs_residual_partition_sums_unaligned);
- encoder->private_->abs_residual_partition_sums_unaligned = 0;
- }
- if(0 != encoder->private_->raw_bits_per_partition_unaligned) {
- free(encoder->private_->raw_bits_per_partition_unaligned);
- encoder->private_->raw_bits_per_partition_unaligned = 0;
- }
- if(encoder->protected_->verify) {
- for(i = 0; i < encoder->protected_->channels; i++) {
- if(0 != encoder->private_->verify.input_fifo.data[i]) {
- free(encoder->private_->verify.input_fifo.data[i]);
- encoder->private_->verify.input_fifo.data[i] = 0;
- }
- }
- }
- FLAC__bitwriter_free(encoder->private_->frame);
-}
-
-FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_blocksize)
-{
- FLAC__bool ok;
- unsigned i, channel;
-
- FLAC__ASSERT(new_blocksize > 0);
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
- FLAC__ASSERT(encoder->private_->current_sample_number == 0);
-
- /* To avoid excessive malloc'ing, we only grow the buffer; no shrinking. */
- if(new_blocksize <= encoder->private_->input_capacity)
- return true;
-
- ok = true;
-
- /* WATCHOUT: FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx() and ..._intrin_sse2()
- * require that the input arrays (in our case the integer signals)
- * have a buffer of up to 3 zeroes in front (at negative indices) for
- * alignment purposes; we use 4 in front to keep the data well-aligned.
- */
-
- for(i = 0; ok && i < encoder->protected_->channels; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_unaligned[i], &encoder->private_->integer_signal[i]);
- memset(encoder->private_->integer_signal[i], 0, sizeof(FLAC__int32)*4);
- encoder->private_->integer_signal[i] += 4;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 0 /* @@@ currently unused */
- if(encoder->protected_->max_lpc_order > 0)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_unaligned[i], &encoder->private_->real_signal[i]);
-#endif
-#endif
- }
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_mid_side_unaligned[i], &encoder->private_->integer_signal_mid_side[i]);
- memset(encoder->private_->integer_signal_mid_side[i], 0, sizeof(FLAC__int32)*4);
- encoder->private_->integer_signal_mid_side[i] += 4;
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-#if 0 /* @@@ currently unused */
- if(encoder->protected_->max_lpc_order > 0)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_mid_side_unaligned[i], &encoder->private_->real_signal_mid_side[i]);
-#endif
-#endif
- }
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(ok && encoder->protected_->max_lpc_order > 0) {
- for(i = 0; ok && i < encoder->protected_->num_apodizations; i++)
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->window_unaligned[i], &encoder->private_->window[i]);
- ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->windowed_signal_unaligned, &encoder->private_->windowed_signal);
- }
-#endif
- for(channel = 0; ok && channel < encoder->protected_->channels; channel++) {
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_unaligned[channel][i], &encoder->private_->residual_workspace[channel][i]);
- }
- }
- for(channel = 0; ok && channel < 2; channel++) {
- for(i = 0; ok && i < 2; i++) {
- ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_mid_side_unaligned[channel][i], &encoder->private_->residual_workspace_mid_side[channel][i]);
- }
- }
- /* the *2 is an approximation to the series 1 + 1/2 + 1/4 + ... that sums tree occupies in a flat array */
- /*@@@ new_blocksize*2 is too pessimistic, but to fix, we need smarter logic because a smaller new_blocksize can actually increase the # of partitions; would require moving this out into a separate function, then checking its capacity against the need of the current blocksize&min/max_partition_order (and maybe predictor order) */
- ok = ok && FLAC__memory_alloc_aligned_uint64_array(new_blocksize * 2, &encoder->private_->abs_residual_partition_sums_unaligned, &encoder->private_->abs_residual_partition_sums);
- if(encoder->protected_->do_escape_coding)
- ok = ok && FLAC__memory_alloc_aligned_unsigned_array(new_blocksize * 2, &encoder->private_->raw_bits_per_partition_unaligned, &encoder->private_->raw_bits_per_partition);
-
- /* now adjust the windows if the blocksize has changed */
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(ok && new_blocksize != encoder->private_->input_capacity && encoder->protected_->max_lpc_order > 0) {
- for(i = 0; ok && i < encoder->protected_->num_apodizations; i++) {
- switch(encoder->protected_->apodizations[i].type) {
- case FLAC__APODIZATION_BARTLETT:
- FLAC__window_bartlett(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BARTLETT_HANN:
- FLAC__window_bartlett_hann(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BLACKMAN:
- FLAC__window_blackman(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE:
- FLAC__window_blackman_harris_4term_92db_sidelobe(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_CONNES:
- FLAC__window_connes(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_FLATTOP:
- FLAC__window_flattop(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_GAUSS:
- FLAC__window_gauss(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.gauss.stddev);
- break;
- case FLAC__APODIZATION_HAMMING:
- FLAC__window_hamming(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_HANN:
- FLAC__window_hann(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_KAISER_BESSEL:
- FLAC__window_kaiser_bessel(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_NUTTALL:
- FLAC__window_nuttall(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_RECTANGLE:
- FLAC__window_rectangle(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_TRIANGLE:
- FLAC__window_triangle(encoder->private_->window[i], new_blocksize);
- break;
- case FLAC__APODIZATION_TUKEY:
- FLAC__window_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.tukey.p);
- break;
- case FLAC__APODIZATION_PARTIAL_TUKEY:
- FLAC__window_partial_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.multiple_tukey.p, encoder->protected_->apodizations[i].parameters.multiple_tukey.start, encoder->protected_->apodizations[i].parameters.multiple_tukey.end);
- break;
- case FLAC__APODIZATION_PUNCHOUT_TUKEY:
- FLAC__window_punchout_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.multiple_tukey.p, encoder->protected_->apodizations[i].parameters.multiple_tukey.start, encoder->protected_->apodizations[i].parameters.multiple_tukey.end);
- break;
- case FLAC__APODIZATION_WELCH:
- FLAC__window_welch(encoder->private_->window[i], new_blocksize);
- break;
- default:
- FLAC__ASSERT(0);
- /* double protection */
- FLAC__window_hann(encoder->private_->window[i], new_blocksize);
- break;
- }
- }
- }
-#endif
-
- if(ok)
- encoder->private_->input_capacity = new_blocksize;
- else
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
-
- return ok;
-}
-
-FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, unsigned samples, FLAC__bool is_last_block)
-{
- const FLAC__byte *buffer;
- size_t bytes;
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
-
- if(!FLAC__bitwriter_get_buffer(encoder->private_->frame, &buffer, &bytes)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(encoder->protected_->verify) {
- encoder->private_->verify.output.data = buffer;
- encoder->private_->verify.output.bytes = bytes;
- if(encoder->private_->verify.state_hint == ENCODER_IN_MAGIC) {
- encoder->private_->verify.needs_magic_hack = true;
- }
- else {
- if(!FLAC__stream_decoder_process_single(encoder->private_->verify.decoder)) {
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
- if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA)
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
- return false;
- }
- }
- }
-
- if(write_frame_(encoder, buffer, bytes, samples, is_last_block) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return false;
- }
-
- FLAC__bitwriter_release_buffer(encoder->private_->frame);
- FLAC__bitwriter_clear(encoder->private_->frame);
-
- if(samples > 0) {
- encoder->private_->streaminfo.data.stream_info.min_framesize = flac_min(bytes, encoder->private_->streaminfo.data.stream_info.min_framesize);
- encoder->private_->streaminfo.data.stream_info.max_framesize = flac_max(bytes, encoder->private_->streaminfo.data.stream_info.max_framesize);
- }
-
- return true;
-}
-
-FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, FLAC__bool is_last_block)
-{
- FLAC__StreamEncoderWriteStatus status;
- FLAC__uint64 output_position = 0;
-
-#if FLAC__HAS_OGG == 0
- (void)is_last_block;
-#endif
-
- /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
- if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &output_position, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
- }
-
- /*
- * Watch for the STREAMINFO block and first SEEKTABLE block to go by and store their offsets.
- */
- if(samples == 0) {
- FLAC__MetadataType type = (buffer[0] & 0x7f);
- if(type == FLAC__METADATA_TYPE_STREAMINFO)
- encoder->protected_->streaminfo_offset = output_position;
- else if(type == FLAC__METADATA_TYPE_SEEKTABLE && encoder->protected_->seektable_offset == 0)
- encoder->protected_->seektable_offset = output_position;
- }
-
- /*
- * Mark the current seek point if hit (if audio_offset == 0 that
- * means we're still writing metadata and haven't hit the first
- * frame yet)
- */
- if(0 != encoder->private_->seek_table && encoder->protected_->audio_offset > 0 && encoder->private_->seek_table->num_points > 0) {
- const unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder);
- const FLAC__uint64 frame_first_sample = encoder->private_->samples_written;
- const FLAC__uint64 frame_last_sample = frame_first_sample + (FLAC__uint64)blocksize - 1;
- FLAC__uint64 test_sample;
- unsigned i;
- for(i = encoder->private_->first_seekpoint_to_check; i < encoder->private_->seek_table->num_points; i++) {
- test_sample = encoder->private_->seek_table->points[i].sample_number;
- if(test_sample > frame_last_sample) {
- break;
- }
- else if(test_sample >= frame_first_sample) {
- encoder->private_->seek_table->points[i].sample_number = frame_first_sample;
- encoder->private_->seek_table->points[i].stream_offset = output_position - encoder->protected_->audio_offset;
- encoder->private_->seek_table->points[i].frame_samples = blocksize;
- encoder->private_->first_seekpoint_to_check++;
- /* DO NOT: "break;" and here's why:
- * The seektable template may contain more than one target
- * sample for any given frame; we will keep looping, generating
- * duplicate seekpoints for them, and we'll clean it up later,
- * just before writing the seektable back to the metadata.
- */
- }
- else {
- encoder->private_->first_seekpoint_to_check++;
- }
- }
- }
-
-#if FLAC__HAS_OGG
- if(encoder->private_->is_ogg) {
- status = FLAC__ogg_encoder_aspect_write_callback_wrapper(
- &encoder->protected_->ogg_encoder_aspect,
- buffer,
- bytes,
- samples,
- encoder->private_->current_frame_number,
- is_last_block,
- (FLAC__OggEncoderAspectWriteCallbackProxy)encoder->private_->write_callback,
- encoder,
- encoder->private_->client_data
- );
- }
- else
-#endif
- status = encoder->private_->write_callback(encoder, buffer, bytes, samples, encoder->private_->current_frame_number, encoder->private_->client_data);
-
- if(status == FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->private_->bytes_written += bytes;
- encoder->private_->samples_written += samples;
- /* we keep a high watermark on the number of frames written because
- * when the encoder goes back to write metadata, 'current_frame'
- * will drop back to 0.
- */
- encoder->private_->frames_written = flac_max(encoder->private_->frames_written, encoder->private_->current_frame_number+1);
- }
- else
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
-
- return status;
-}
-
-/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks. */
-void update_metadata_(const FLAC__StreamEncoder *encoder)
-{
- FLAC__byte b[flac_max(6u, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
- const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
- const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
- const unsigned min_framesize = metadata->data.stream_info.min_framesize;
- const unsigned max_framesize = metadata->data.stream_info.max_framesize;
- const unsigned bps = metadata->data.stream_info.bits_per_sample;
- FLAC__StreamEncoderSeekStatus seek_status;
-
- FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
-
- /* All this is based on intimate knowledge of the stream header
- * layout, but a change to the header format that would break this
- * would also break all streams encoded in the previous format.
- */
-
- /*
- * Write MD5 signature
- */
- {
- const unsigned md5_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
- ) / 8;
-
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + md5_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, metadata->data.stream_info.md5sum, 16, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write total samples
- */
- {
- const unsigned total_samples_byte_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
- - 4
- ) / 8;
-
- b[0] = ((FLAC__byte)(bps-1) << 4) | (FLAC__byte)((samples >> 32) & 0x0F);
- b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
- b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
- b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
- b[4] = (FLAC__byte)(samples & 0xFF);
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + total_samples_byte_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, b, 5, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write min/max framesize
- */
- {
- const unsigned min_framesize_offset =
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
- ) / 8;
-
- b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
- b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
- b[2] = (FLAC__byte)(min_framesize & 0xFF);
- b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
- b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
- b[5] = (FLAC__byte)(max_framesize & 0xFF);
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + min_framesize_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- if(encoder->private_->write_callback(encoder, b, 6, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
-
- /*
- * Write seektable
- */
- if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
- unsigned i;
-
- FLAC__format_seektable_sort(encoder->private_->seek_table);
-
- FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
-
- if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->seektable_offset + FLAC__STREAM_METADATA_HEADER_LENGTH, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
- if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
-
- for(i = 0; i < encoder->private_->seek_table->num_points; i++) {
- FLAC__uint64 xx;
- unsigned x;
- xx = encoder->private_->seek_table->points[i].sample_number;
- b[7] = (FLAC__byte)xx; xx >>= 8;
- b[6] = (FLAC__byte)xx; xx >>= 8;
- b[5] = (FLAC__byte)xx; xx >>= 8;
- b[4] = (FLAC__byte)xx; xx >>= 8;
- b[3] = (FLAC__byte)xx; xx >>= 8;
- b[2] = (FLAC__byte)xx; xx >>= 8;
- b[1] = (FLAC__byte)xx; xx >>= 8;
- b[0] = (FLAC__byte)xx; xx >>= 8;
- xx = encoder->private_->seek_table->points[i].stream_offset;
- b[15] = (FLAC__byte)xx; xx >>= 8;
- b[14] = (FLAC__byte)xx; xx >>= 8;
- b[13] = (FLAC__byte)xx; xx >>= 8;
- b[12] = (FLAC__byte)xx; xx >>= 8;
- b[11] = (FLAC__byte)xx; xx >>= 8;
- b[10] = (FLAC__byte)xx; xx >>= 8;
- b[9] = (FLAC__byte)xx; xx >>= 8;
- b[8] = (FLAC__byte)xx; xx >>= 8;
- x = encoder->private_->seek_table->points[i].frame_samples;
- b[17] = (FLAC__byte)x; x >>= 8;
- b[16] = (FLAC__byte)x; x >>= 8;
- if(encoder->private_->write_callback(encoder, b, 18, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
- return;
- }
- }
- }
-}
-
-#if FLAC__HAS_OGG
-/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks. */
-void update_ogg_metadata_(FLAC__StreamEncoder *encoder)
-{
- /* the # of bytes in the 1st packet that precede the STREAMINFO */
- static const unsigned FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH =
- FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
- FLAC__OGG_MAPPING_MAGIC_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
- FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
- FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
- FLAC__STREAM_SYNC_LENGTH
- ;
- FLAC__byte b[flac_max(6u, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
- const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
- const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
- const unsigned min_framesize = metadata->data.stream_info.min_framesize;
- const unsigned max_framesize = metadata->data.stream_info.max_framesize;
- ogg_page page;
-
- FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
- FLAC__ASSERT(0 != encoder->private_->seek_callback);
-
- /* Pre-check that client supports seeking, since we don't want the
- * ogg_helper code to ever have to deal with this condition.
- */
- if(encoder->private_->seek_callback(encoder, 0, encoder->private_->client_data) == FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED)
- return;
-
- /* All this is based on intimate knowledge of the stream header
- * layout, but a change to the header format that would break this
- * would also break all streams encoded in the previous format.
- */
-
- /**
- ** Write STREAMINFO stats
- **/
- simple_ogg_page__init(&page);
- if(!simple_ogg_page__get_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
-
- /*
- * Write MD5 signature
- */
- {
- const unsigned md5_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
- ) / 8;
-
- if(md5_offset + 16 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- memcpy(page.body + md5_offset, metadata->data.stream_info.md5sum, 16);
- }
-
- /*
- * Write total samples
- */
- {
- const unsigned total_samples_byte_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
- - 4
- ) / 8;
-
- if(total_samples_byte_offset + 5 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- b[0] = (FLAC__byte)page.body[total_samples_byte_offset] & 0xF0;
- b[0] |= (FLAC__byte)((samples >> 32) & 0x0F);
- b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
- b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
- b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
- b[4] = (FLAC__byte)(samples & 0xFF);
- memcpy(page.body + total_samples_byte_offset, b, 5);
- }
-
- /*
- * Write min/max framesize
- */
- {
- const unsigned min_framesize_offset =
- FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
- FLAC__STREAM_METADATA_HEADER_LENGTH +
- (
- FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
- FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
- ) / 8;
-
- if(min_framesize_offset + 6 > (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
- b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
- b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
- b[2] = (FLAC__byte)(min_framesize & 0xFF);
- b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
- b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
- b[5] = (FLAC__byte)(max_framesize & 0xFF);
- memcpy(page.body + min_framesize_offset, b, 6);
- }
- if(!simple_ogg_page__set_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
- simple_ogg_page__clear(&page);
-
- /*
- * Write seektable
- */
- if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
- unsigned i;
- FLAC__byte *p;
-
- FLAC__format_seektable_sort(encoder->private_->seek_table);
-
- FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
-
- simple_ogg_page__init(&page);
- if(!simple_ogg_page__get_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
-
- if((FLAC__STREAM_METADATA_HEADER_LENGTH + 18*encoder->private_->seek_table->num_points) != (unsigned)page.body_len) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
- simple_ogg_page__clear(&page);
- return;
- }
-
- for(i = 0, p = page.body + FLAC__STREAM_METADATA_HEADER_LENGTH; i < encoder->private_->seek_table->num_points; i++, p += 18) {
- FLAC__uint64 xx;
- unsigned x;
- xx = encoder->private_->seek_table->points[i].sample_number;
- b[7] = (FLAC__byte)xx; xx >>= 8;
- b[6] = (FLAC__byte)xx; xx >>= 8;
- b[5] = (FLAC__byte)xx; xx >>= 8;
- b[4] = (FLAC__byte)xx; xx >>= 8;
- b[3] = (FLAC__byte)xx; xx >>= 8;
- b[2] = (FLAC__byte)xx; xx >>= 8;
- b[1] = (FLAC__byte)xx; xx >>= 8;
- b[0] = (FLAC__byte)xx; xx >>= 8;
- xx = encoder->private_->seek_table->points[i].stream_offset;
- b[15] = (FLAC__byte)xx; xx >>= 8;
- b[14] = (FLAC__byte)xx; xx >>= 8;
- b[13] = (FLAC__byte)xx; xx >>= 8;
- b[12] = (FLAC__byte)xx; xx >>= 8;
- b[11] = (FLAC__byte)xx; xx >>= 8;
- b[10] = (FLAC__byte)xx; xx >>= 8;
- b[9] = (FLAC__byte)xx; xx >>= 8;
- b[8] = (FLAC__byte)xx; xx >>= 8;
- x = encoder->private_->seek_table->points[i].frame_samples;
- b[17] = (FLAC__byte)x; x >>= 8;
- b[16] = (FLAC__byte)x; x >>= 8;
- memcpy(p, b, 18);
- }
-
- if(!simple_ogg_page__set_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
- simple_ogg_page__clear(&page);
- return; /* state already set */
- }
- simple_ogg_page__clear(&page);
- }
-}
-#endif
-
-FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block, FLAC__bool is_last_block)
-{
- FLAC__uint16 crc;
- FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
-
- /*
- * Accumulate raw signal to the MD5 signature
- */
- if(encoder->protected_->do_md5 && !FLAC__MD5Accumulate(&encoder->private_->md5context, (const FLAC__int32 * const *)encoder->private_->integer_signal, encoder->protected_->channels, encoder->protected_->blocksize, (encoder->protected_->bits_per_sample+7) / 8)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * Process the frame header and subframes into the frame bitbuffer
- */
- if(!process_subframes_(encoder, is_fractional_block)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
-
- /*
- * Zero-pad the frame to a byte_boundary
- */
- if(!FLAC__bitwriter_zero_pad_to_byte_boundary(encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * CRC-16 the whole thing
- */
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
- if(
- !FLAC__bitwriter_get_write_crc16(encoder->private_->frame, &crc) ||
- !FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, crc, FLAC__FRAME_FOOTER_CRC_LEN)
- ) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- /*
- * Write it
- */
- if(!write_bitbuffer_(encoder, encoder->protected_->blocksize, is_last_block)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
-
- /*
- * Get ready for the next frame
- */
- encoder->private_->current_sample_number = 0;
- encoder->private_->current_frame_number++;
- encoder->private_->streaminfo.data.stream_info.total_samples += (FLAC__uint64)encoder->protected_->blocksize;
-
- return true;
-}
-
-FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block)
-{
- FLAC__FrameHeader frame_header;
- unsigned channel, min_partition_order = encoder->protected_->min_residual_partition_order, max_partition_order;
- FLAC__bool do_independent, do_mid_side;
-
- /*
- * Calculate the min,max Rice partition orders
- */
- if(is_fractional_block) {
- max_partition_order = 0;
- }
- else {
- max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize(encoder->protected_->blocksize);
- max_partition_order = flac_min(max_partition_order, encoder->protected_->max_residual_partition_order);
- }
- min_partition_order = flac_min(min_partition_order, max_partition_order);
-
- /*
- * Setup the frame
- */
- frame_header.blocksize = encoder->protected_->blocksize;
- frame_header.sample_rate = encoder->protected_->sample_rate;
- frame_header.channels = encoder->protected_->channels;
- frame_header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT; /* the default unless the encoder determines otherwise */
- frame_header.bits_per_sample = encoder->protected_->bits_per_sample;
- frame_header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
- frame_header.number.frame_number = encoder->private_->current_frame_number;
-
- /*
- * Figure out what channel assignments to try
- */
- if(encoder->protected_->do_mid_side_stereo) {
- if(encoder->protected_->loose_mid_side_stereo) {
- if(encoder->private_->loose_mid_side_stereo_frame_count == 0) {
- do_independent = true;
- do_mid_side = true;
- }
- else {
- do_independent = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT);
- do_mid_side = !do_independent;
- }
- }
- else {
- do_independent = true;
- do_mid_side = true;
- }
- }
- else {
- do_independent = true;
- do_mid_side = false;
- }
-
- FLAC__ASSERT(do_independent || do_mid_side);
-
- /*
- * Check for wasted bits; set effective bps for each subframe
- */
- if(do_independent) {
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- unsigned w = get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
- if (w > encoder->protected_->bits_per_sample) {
- w = encoder->protected_->bits_per_sample;
- }
- encoder->private_->subframe_workspace[channel][0].wasted_bits = encoder->private_->subframe_workspace[channel][1].wasted_bits = w;
- encoder->private_->subframe_bps[channel] = encoder->protected_->bits_per_sample - w;
- }
- }
- if(do_mid_side) {
- FLAC__ASSERT(encoder->protected_->channels == 2);
- for(channel = 0; channel < 2; channel++) {
- unsigned w = get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
- if (w > encoder->protected_->bits_per_sample) {
- w = encoder->protected_->bits_per_sample;
- }
- encoder->private_->subframe_workspace_mid_side[channel][0].wasted_bits = encoder->private_->subframe_workspace_mid_side[channel][1].wasted_bits = w;
- encoder->private_->subframe_bps_mid_side[channel] = encoder->protected_->bits_per_sample - w + (channel==0? 0:1);
- }
- }
-
- /*
- * First do a normal encoding pass of each independent channel
- */
- if(do_independent) {
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!
- process_subframe_(
- encoder,
- min_partition_order,
- max_partition_order,
- &frame_header,
- encoder->private_->subframe_bps[channel],
- encoder->private_->integer_signal[channel],
- encoder->private_->subframe_workspace_ptr[channel],
- encoder->private_->partitioned_rice_contents_workspace_ptr[channel],
- encoder->private_->residual_workspace[channel],
- encoder->private_->best_subframe+channel,
- encoder->private_->best_subframe_bits+channel
- )
- )
- return false;
- }
- }
-
- /*
- * Now do mid and side channels if requested
- */
- if(do_mid_side) {
- FLAC__ASSERT(encoder->protected_->channels == 2);
-
- for(channel = 0; channel < 2; channel++) {
- if(!
- process_subframe_(
- encoder,
- min_partition_order,
- max_partition_order,
- &frame_header,
- encoder->private_->subframe_bps_mid_side[channel],
- encoder->private_->integer_signal_mid_side[channel],
- encoder->private_->subframe_workspace_ptr_mid_side[channel],
- encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[channel],
- encoder->private_->residual_workspace_mid_side[channel],
- encoder->private_->best_subframe_mid_side+channel,
- encoder->private_->best_subframe_bits_mid_side+channel
- )
- )
- return false;
- }
- }
-
- /*
- * Compose the frame bitbuffer
- */
- if(do_mid_side) {
- unsigned left_bps = 0, right_bps = 0; /* initialized only to prevent superfluous compiler warning */
- FLAC__Subframe *left_subframe = 0, *right_subframe = 0; /* initialized only to prevent superfluous compiler warning */
- FLAC__ChannelAssignment channel_assignment;
-
- FLAC__ASSERT(encoder->protected_->channels == 2);
-
- if(encoder->protected_->loose_mid_side_stereo && encoder->private_->loose_mid_side_stereo_frame_count > 0) {
- channel_assignment = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT? FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT : FLAC__CHANNEL_ASSIGNMENT_MID_SIDE);
- }
- else {
- unsigned bits[4]; /* WATCHOUT - indexed by FLAC__ChannelAssignment */
- unsigned min_bits;
- int ca;
-
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT == 0);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE == 1);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE == 2);
- FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_MID_SIDE == 3);
- FLAC__ASSERT(do_independent && do_mid_side);
-
- /* We have to figure out which channel assignent results in the smallest frame */
- bits[FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT] = encoder->private_->best_subframe_bits [0] + encoder->private_->best_subframe_bits [1];
- bits[FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE ] = encoder->private_->best_subframe_bits [0] + encoder->private_->best_subframe_bits_mid_side[1];
- bits[FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE ] = encoder->private_->best_subframe_bits [1] + encoder->private_->best_subframe_bits_mid_side[1];
- bits[FLAC__CHANNEL_ASSIGNMENT_MID_SIDE ] = encoder->private_->best_subframe_bits_mid_side[0] + encoder->private_->best_subframe_bits_mid_side[1];
-
- channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
- min_bits = bits[channel_assignment];
- for(ca = 1; ca <= 3; ca++) {
- if(bits[ca] < min_bits) {
- min_bits = bits[ca];
- channel_assignment = (FLAC__ChannelAssignment)ca;
- }
- }
- }
-
- frame_header.channel_assignment = channel_assignment;
-
- if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
-
- switch(channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- left_subframe = &encoder->private_->subframe_workspace [0][encoder->private_->best_subframe [0]];
- right_subframe = &encoder->private_->subframe_workspace [1][encoder->private_->best_subframe [1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- left_subframe = &encoder->private_->subframe_workspace [0][encoder->private_->best_subframe [0]];
- right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- left_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- right_subframe = &encoder->private_->subframe_workspace [1][encoder->private_->best_subframe [1]];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- left_subframe = &encoder->private_->subframe_workspace_mid_side[0][encoder->private_->best_subframe_mid_side[0]];
- right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- switch(channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- left_bps = encoder->private_->subframe_bps [0];
- right_bps = encoder->private_->subframe_bps [1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- left_bps = encoder->private_->subframe_bps [0];
- right_bps = encoder->private_->subframe_bps_mid_side[1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- left_bps = encoder->private_->subframe_bps_mid_side[1];
- right_bps = encoder->private_->subframe_bps [1];
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- left_bps = encoder->private_->subframe_bps_mid_side[0];
- right_bps = encoder->private_->subframe_bps_mid_side[1];
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- /* note that encoder_add_subframe_ sets the state for us in case of an error */
- if(!add_subframe_(encoder, frame_header.blocksize, left_bps , left_subframe , encoder->private_->frame))
- return false;
- if(!add_subframe_(encoder, frame_header.blocksize, right_bps, right_subframe, encoder->private_->frame))
- return false;
- }
- else {
- if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
-
- for(channel = 0; channel < encoder->protected_->channels; channel++) {
- if(!add_subframe_(encoder, frame_header.blocksize, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
- /* the above function sets the state for us in case of an error */
- return false;
- }
- }
- }
-
- if(encoder->protected_->loose_mid_side_stereo) {
- encoder->private_->loose_mid_side_stereo_frame_count++;
- if(encoder->private_->loose_mid_side_stereo_frame_count >= encoder->private_->loose_mid_side_stereo_frames)
- encoder->private_->loose_mid_side_stereo_frame_count = 0;
- }
-
- encoder->private_->last_channel_assignment = frame_header.channel_assignment;
-
- return true;
-}
-
-FLAC__bool process_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned min_partition_order,
- unsigned max_partition_order,
- const FLAC__FrameHeader *frame_header,
- unsigned subframe_bps,
- const FLAC__int32 integer_signal[],
- FLAC__Subframe *subframe[2],
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
- FLAC__int32 *residual[2],
- unsigned *best_subframe,
- unsigned *best_bits
-)
-{
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- float fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
-#else
- FLAC__fixedpoint fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
-#endif
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- double lpc_residual_bits_per_sample;
- FLAC__real autoc[FLAC__MAX_LPC_ORDER+1]; /* WATCHOUT: the size is important even though encoder->protected_->max_lpc_order might be less; some asm and x86 intrinsic routines need all the space */
- double lpc_error[FLAC__MAX_LPC_ORDER];
- unsigned min_lpc_order, max_lpc_order, lpc_order;
- unsigned min_qlp_coeff_precision, max_qlp_coeff_precision, qlp_coeff_precision;
-#endif
- unsigned min_fixed_order, max_fixed_order, guess_fixed_order, fixed_order;
- unsigned rice_parameter;
- unsigned _candidate_bits, _best_bits;
- unsigned _best_subframe;
- /* only use RICE2 partitions if stream bps > 16 */
- const unsigned rice_parameter_limit = FLAC__stream_encoder_get_bits_per_sample(encoder) > 16? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- FLAC__ASSERT(frame_header->blocksize > 0);
-
- /* verbatim subframe is the baseline against which we measure other compressed subframes */
- _best_subframe = 0;
- if(encoder->private_->disable_verbatim_subframes && frame_header->blocksize >= FLAC__MAX_FIXED_ORDER)
- _best_bits = UINT_MAX;
- else
- _best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
-
- if(frame_header->blocksize >= FLAC__MAX_FIXED_ORDER) {
- unsigned signal_is_constant = false;
- if(subframe_bps + 4 + FLAC__bitmath_ilog2((frame_header->blocksize-FLAC__MAX_FIXED_ORDER)|1) <= 32)
- guess_fixed_order = encoder->private_->local_fixed_compute_best_predictor(integer_signal+FLAC__MAX_FIXED_ORDER, frame_header->blocksize-FLAC__MAX_FIXED_ORDER, fixed_residual_bits_per_sample);
- else
- guess_fixed_order = encoder->private_->local_fixed_compute_best_predictor_wide(integer_signal+FLAC__MAX_FIXED_ORDER, frame_header->blocksize-FLAC__MAX_FIXED_ORDER, fixed_residual_bits_per_sample);
- /* check for constant subframe */
- if(
- !encoder->private_->disable_constant_subframes &&
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- fixed_residual_bits_per_sample[1] == 0.0
-#else
- fixed_residual_bits_per_sample[1] == FLAC__FP_ZERO
-#endif
- ) {
- /* the above means it's possible all samples are the same value; now double-check it: */
- unsigned i;
- signal_is_constant = true;
- for(i = 1; i < frame_header->blocksize; i++) {
- if(integer_signal[0] != integer_signal[i]) {
- signal_is_constant = false;
- break;
- }
- }
- }
- if(signal_is_constant) {
- _candidate_bits = evaluate_constant_subframe_(encoder, integer_signal[0], frame_header->blocksize, subframe_bps, subframe[!_best_subframe]);
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- else {
- if(!encoder->private_->disable_fixed_subframes || (encoder->protected_->max_lpc_order == 0 && _best_bits == UINT_MAX)) {
- /* encode fixed */
- if(encoder->protected_->do_exhaustive_model_search) {
- min_fixed_order = 0;
- max_fixed_order = FLAC__MAX_FIXED_ORDER;
- }
- else {
- min_fixed_order = max_fixed_order = guess_fixed_order;
- }
- if(max_fixed_order >= frame_header->blocksize)
- max_fixed_order = frame_header->blocksize - 1;
- for(fixed_order = min_fixed_order; fixed_order <= max_fixed_order; fixed_order++) {
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- if(fixed_residual_bits_per_sample[fixed_order] >= (float)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (fixed_residual_bits_per_sample[fixed_order] > 0.0)? (unsigned)(fixed_residual_bits_per_sample[fixed_order]+0.5) : 0; /* 0.5 is for rounding */
-#else
- if(FLAC__fixedpoint_trunc(fixed_residual_bits_per_sample[fixed_order]) >= (int)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (fixed_residual_bits_per_sample[fixed_order] > FLAC__FP_ZERO)? (unsigned)FLAC__fixedpoint_trunc(fixed_residual_bits_per_sample[fixed_order]+FLAC__FP_ONE_HALF) : 0; /* 0.5 is for rounding */
-#endif
- rice_parameter++; /* to account for the signed->unsigned conversion during rice coding */
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @0\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
- _candidate_bits =
- evaluate_fixed_subframe_(
- encoder,
- integer_signal,
- residual[!_best_subframe],
- encoder->private_->abs_residual_partition_sums,
- encoder->private_->raw_bits_per_partition,
- frame_header->blocksize,
- subframe_bps,
- fixed_order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- encoder->protected_->do_escape_coding,
- encoder->protected_->rice_parameter_search_dist,
- subframe[!_best_subframe],
- partitioned_rice_contents[!_best_subframe]
- );
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- }
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
- /* encode lpc */
- if(encoder->protected_->max_lpc_order > 0) {
- if(encoder->protected_->max_lpc_order >= frame_header->blocksize)
- max_lpc_order = frame_header->blocksize-1;
- else
- max_lpc_order = encoder->protected_->max_lpc_order;
- if(max_lpc_order > 0) {
- unsigned a;
- for (a = 0; a < encoder->protected_->num_apodizations; a++) {
- FLAC__lpc_window_data(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize);
- encoder->private_->local_lpc_compute_autocorrelation(encoder->private_->windowed_signal, frame_header->blocksize, max_lpc_order+1, autoc);
- /* if autoc[0] == 0.0, the signal is constant and we usually won't get here, but it can happen */
- if(autoc[0] != 0.0) {
- FLAC__lpc_compute_lp_coefficients(autoc, &max_lpc_order, encoder->private_->lp_coeff, lpc_error);
- if(encoder->protected_->do_exhaustive_model_search) {
- min_lpc_order = 1;
- }
- else {
- const unsigned guess_lpc_order =
- FLAC__lpc_compute_best_order(
- lpc_error,
- max_lpc_order,
- frame_header->blocksize,
- subframe_bps + (
- encoder->protected_->do_qlp_coeff_prec_search?
- FLAC__MIN_QLP_COEFF_PRECISION : /* have to guess; use the min possible size to avoid accidentally favoring lower orders */
- encoder->protected_->qlp_coeff_precision
- )
- );
- min_lpc_order = max_lpc_order = guess_lpc_order;
- }
- if(max_lpc_order >= frame_header->blocksize)
- max_lpc_order = frame_header->blocksize - 1;
- for(lpc_order = min_lpc_order; lpc_order <= max_lpc_order; lpc_order++) {
- lpc_residual_bits_per_sample = FLAC__lpc_compute_expected_bits_per_residual_sample(lpc_error[lpc_order-1], frame_header->blocksize-lpc_order);
- if(lpc_residual_bits_per_sample >= (double)subframe_bps)
- continue; /* don't even try */
- rice_parameter = (lpc_residual_bits_per_sample > 0.0)? (unsigned)(lpc_residual_bits_per_sample+0.5) : 0; /* 0.5 is for rounding */
- rice_parameter++; /* to account for the signed->unsigned conversion during rice coding */
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @1\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
- if(encoder->protected_->do_qlp_coeff_prec_search) {
- min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION;
- /* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps(+1bps for side channel) streams */
- if(subframe_bps <= 17) {
- max_qlp_coeff_precision = flac_min(32 - subframe_bps - FLAC__bitmath_ilog2(lpc_order), FLAC__MAX_QLP_COEFF_PRECISION);
- max_qlp_coeff_precision = flac_max(max_qlp_coeff_precision, min_qlp_coeff_precision);
- }
- else
- max_qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
- }
- else {
- min_qlp_coeff_precision = max_qlp_coeff_precision = encoder->protected_->qlp_coeff_precision;
- }
- for(qlp_coeff_precision = min_qlp_coeff_precision; qlp_coeff_precision <= max_qlp_coeff_precision; qlp_coeff_precision++) {
- _candidate_bits =
- evaluate_lpc_subframe_(
- encoder,
- integer_signal,
- residual[!_best_subframe],
- encoder->private_->abs_residual_partition_sums,
- encoder->private_->raw_bits_per_partition,
- encoder->private_->lp_coeff[lpc_order-1],
- frame_header->blocksize,
- subframe_bps,
- lpc_order,
- qlp_coeff_precision,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- encoder->protected_->do_escape_coding,
- encoder->protected_->rice_parameter_search_dist,
- subframe[!_best_subframe],
- partitioned_rice_contents[!_best_subframe]
- );
- if(_candidate_bits > 0) { /* if == 0, there was a problem quantizing the lpcoeffs */
- if(_candidate_bits < _best_bits) {
- _best_subframe = !_best_subframe;
- _best_bits = _candidate_bits;
- }
- }
- }
- }
- }
- }
- }
- }
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
- }
- }
-
- /* under rare circumstances this can happen when all but lpc subframe types are disabled: */
- if(_best_bits == UINT_MAX) {
- FLAC__ASSERT(_best_subframe == 0);
- _best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
- }
-
- *best_subframe = _best_subframe;
- *best_bits = _best_bits;
-
- return true;
-}
-
-FLAC__bool add_subframe_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- FLAC__BitWriter *frame
-)
-{
- switch(subframe->type) {
- case FLAC__SUBFRAME_TYPE_CONSTANT:
- if(!FLAC__subframe_add_constant(&(subframe->data.constant), subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_FIXED:
- if(!FLAC__subframe_add_fixed(&(subframe->data.fixed), blocksize - subframe->data.fixed.order, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_LPC:
- if(!FLAC__subframe_add_lpc(&(subframe->data.lpc), blocksize - subframe->data.lpc.order, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- case FLAC__SUBFRAME_TYPE_VERBATIM:
- if(!FLAC__subframe_add_verbatim(&(subframe->data.verbatim), blocksize, subframe_bps, subframe->wasted_bits, frame)) {
- encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
- return false;
- }
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-#define SPOTCHECK_ESTIMATE 0
-#if SPOTCHECK_ESTIMATE
-static void spotcheck_subframe_estimate_(
- FLAC__StreamEncoder *encoder,
- unsigned blocksize,
- unsigned subframe_bps,
- const FLAC__Subframe *subframe,
- unsigned estimate
-)
-{
- FLAC__bool ret;
- FLAC__BitWriter *frame = FLAC__bitwriter_new();
- if(frame == 0) {
- fprintf(stderr, "EST: can't allocate frame\n");
- return;
- }
- if(!FLAC__bitwriter_init(frame)) {
- fprintf(stderr, "EST: can't init frame\n");
- return;
- }
- ret = add_subframe_(encoder, blocksize, subframe_bps, subframe, frame);
- FLAC__ASSERT(ret);
- {
- const unsigned actual = FLAC__bitwriter_get_input_bits_unconsumed(frame);
- if(estimate != actual)
- fprintf(stderr, "EST: bad, frame#%u sub#%%d type=%8s est=%u, actual=%u, delta=%d\n", encoder->private_->current_frame_number, FLAC__SubframeTypeString[subframe->type], estimate, actual, (int)actual-(int)estimate);
- }
- FLAC__bitwriter_delete(frame);
-}
-#endif
-
-unsigned evaluate_constant_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal,
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-)
-{
- unsigned estimate;
- subframe->type = FLAC__SUBFRAME_TYPE_CONSTANT;
- subframe->data.constant.value = signal;
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + subframe_bps;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#else
- (void)encoder, (void)blocksize;
-#endif
-
- return estimate;
-}
-
-unsigned evaluate_fixed_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-)
-{
- unsigned i, residual_bits, estimate;
- const unsigned residual_samples = blocksize - order;
-
- FLAC__fixed_compute_residual(signal+order, residual_samples, order, residual);
-
- subframe->type = FLAC__SUBFRAME_TYPE_FIXED;
-
- subframe->data.fixed.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
- subframe->data.fixed.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
- subframe->data.fixed.residual = residual;
-
- residual_bits =
- find_best_partition_order_(
- encoder->private_,
- residual,
- abs_residual_partition_sums,
- raw_bits_per_partition,
- residual_samples,
- order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- subframe_bps,
- do_escape_coding,
- rice_parameter_search_dist,
- &subframe->data.fixed.entropy_coding_method
- );
-
- subframe->data.fixed.order = order;
- for(i = 0; i < order; i++)
- subframe->data.fixed.warmup[i] = signal[i];
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (order * subframe_bps) + residual_bits;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#endif
-
- return estimate;
-}
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-unsigned evaluate_lpc_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- const FLAC__real lp_coeff[],
- unsigned blocksize,
- unsigned subframe_bps,
- unsigned order,
- unsigned qlp_coeff_precision,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__Subframe *subframe,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
-)
-{
- FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER]; /* WATCHOUT: the size is important; some x86 intrinsic routines need more than lpc order elements */
- unsigned i, residual_bits, estimate;
- int quantization, ret;
- const unsigned residual_samples = blocksize - order;
-
- /* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps(+1bps for side channel) streams */
- if(subframe_bps <= 17) {
- FLAC__ASSERT(order > 0);
- FLAC__ASSERT(order <= FLAC__MAX_LPC_ORDER);
- qlp_coeff_precision = flac_min(qlp_coeff_precision, 32 - subframe_bps - FLAC__bitmath_ilog2(order));
- }
-
- ret = FLAC__lpc_quantize_coefficients(lp_coeff, order, qlp_coeff_precision, qlp_coeff, &quantization);
- if(ret != 0)
- return 0; /* this is a hack to indicate to the caller that we can't do lp at this order on this subframe */
-
- if(subframe_bps + qlp_coeff_precision + FLAC__bitmath_ilog2(order) <= 32)
- if(subframe_bps <= 16 && qlp_coeff_precision <= 16)
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
- else
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
- else
- encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit(signal+order, residual_samples, qlp_coeff, order, quantization, residual);
-
- subframe->type = FLAC__SUBFRAME_TYPE_LPC;
-
- subframe->data.lpc.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
- subframe->data.lpc.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
- subframe->data.lpc.residual = residual;
-
- residual_bits =
- find_best_partition_order_(
- encoder->private_,
- residual,
- abs_residual_partition_sums,
- raw_bits_per_partition,
- residual_samples,
- order,
- rice_parameter,
- rice_parameter_limit,
- min_partition_order,
- max_partition_order,
- subframe_bps,
- do_escape_coding,
- rice_parameter_search_dist,
- &subframe->data.lpc.entropy_coding_method
- );
-
- subframe->data.lpc.order = order;
- subframe->data.lpc.qlp_coeff_precision = qlp_coeff_precision;
- subframe->data.lpc.quantization_level = quantization;
- memcpy(subframe->data.lpc.qlp_coeff, qlp_coeff, sizeof(FLAC__int32)*FLAC__MAX_LPC_ORDER);
- for(i = 0; i < order; i++)
- subframe->data.lpc.warmup[i] = signal[i];
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN + FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN + (order * (qlp_coeff_precision + subframe_bps)) + residual_bits;
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#endif
-
- return estimate;
-}
-#endif
-
-unsigned evaluate_verbatim_subframe_(
- FLAC__StreamEncoder *encoder,
- const FLAC__int32 signal[],
- unsigned blocksize,
- unsigned subframe_bps,
- FLAC__Subframe *subframe
-)
-{
- unsigned estimate;
-
- subframe->type = FLAC__SUBFRAME_TYPE_VERBATIM;
-
- subframe->data.verbatim.data = signal;
-
- estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (blocksize * subframe_bps);
-
-#if SPOTCHECK_ESTIMATE
- spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
-#else
- (void)encoder;
-#endif
-
- return estimate;
-}
-
-unsigned find_best_partition_order_(
- FLAC__StreamEncoderPrivate *private_,
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned rice_parameter,
- unsigned rice_parameter_limit,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps,
- FLAC__bool do_escape_coding,
- unsigned rice_parameter_search_dist,
- FLAC__EntropyCodingMethod *best_ecm
-)
-{
- unsigned residual_bits, best_residual_bits = 0;
- unsigned best_parameters_index = 0;
- unsigned best_partition_order = 0;
- const unsigned blocksize = residual_samples + predictor_order;
-
- max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(max_partition_order, blocksize, predictor_order);
- min_partition_order = flac_min(min_partition_order, max_partition_order);
-
- private_->local_precompute_partition_info_sums(residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order, bps);
-
- if(do_escape_coding)
- precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
-
- {
- int partition_order;
- unsigned sum;
-
- for(partition_order = (int)max_partition_order, sum = 0; partition_order >= (int)min_partition_order; partition_order--) {
- if(!
- set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- residual,
-#endif
- abs_residual_partition_sums+sum,
- raw_bits_per_partition+sum,
- residual_samples,
- predictor_order,
- rice_parameter,
- rice_parameter_limit,
- rice_parameter_search_dist,
- (unsigned)partition_order,
- do_escape_coding,
- &private_->partitioned_rice_contents_extra[!best_parameters_index],
- &residual_bits
- )
- )
- {
- FLAC__ASSERT(best_residual_bits != 0);
- break;
- }
- sum += 1u << partition_order;
- if(best_residual_bits == 0 || residual_bits < best_residual_bits) {
- best_residual_bits = residual_bits;
- best_parameters_index = !best_parameters_index;
- best_partition_order = partition_order;
- }
- }
- }
-
- best_ecm->data.partitioned_rice.order = best_partition_order;
-
- {
- /*
- * We are allowed to de-const the pointer based on our special
- * knowledge; it is const to the outside world.
- */
- FLAC__EntropyCodingMethod_PartitionedRiceContents* prc = (FLAC__EntropyCodingMethod_PartitionedRiceContents*)best_ecm->data.partitioned_rice.contents;
- unsigned partition;
-
- /* save best parameters and raw_bits */
- FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(prc, flac_max(6u, best_partition_order));
- memcpy(prc->parameters, private_->partitioned_rice_contents_extra[best_parameters_index].parameters, sizeof(unsigned)*(1<<(best_partition_order)));
- if(do_escape_coding)
- memcpy(prc->raw_bits, private_->partitioned_rice_contents_extra[best_parameters_index].raw_bits, sizeof(unsigned)*(1<<(best_partition_order)));
- /*
- * Now need to check if the type should be changed to
- * FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 based on the
- * size of the rice parameters.
- */
- for(partition = 0; partition < (1u<<best_partition_order); partition++) {
- if(prc->parameters[partition] >= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER) {
- best_ecm->type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2;
- break;
- }
- }
- }
-
- return best_residual_bits;
-}
-
-void precompute_partition_info_sums_(
- const FLAC__int32 residual[],
- FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order,
- unsigned bps
-)
-{
- const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
- unsigned partitions = 1u << max_partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- /* first do max_partition_order */
- {
- const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
- unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
- /* WATCHOUT: "bps + FLAC__MAX_EXTRA_RESIDUAL_BPS" is the maximum assumed size of the average residual magnitude */
- if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- FLAC__uint32 abs_residual_partition_sum = 0;
- end += default_partition_samples;
- for( ; residual_sample < end; residual_sample++)
- abs_residual_partition_sum += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
- abs_residual_partition_sums[partition] = abs_residual_partition_sum;
- }
- }
- else { /* have to pessimistically use 64 bits for accumulator */
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- FLAC__uint64 abs_residual_partition_sum64 = 0;
- end += default_partition_samples;
- for( ; residual_sample < end; residual_sample++)
- abs_residual_partition_sum64 += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
- abs_residual_partition_sums[partition] = abs_residual_partition_sum64;
- }
- }
- }
-
- /* now merge partitions for lower orders */
- {
- unsigned from_partition = 0, to_partition = partitions;
- int partition_order;
- for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned i;
- partitions >>= 1;
- for(i = 0; i < partitions; i++) {
- abs_residual_partition_sums[to_partition++] =
- abs_residual_partition_sums[from_partition ] +
- abs_residual_partition_sums[from_partition+1];
- from_partition += 2;
- }
- }
- }
-}
-
-void precompute_partition_info_escapes_(
- const FLAC__int32 residual[],
- unsigned raw_bits_per_partition[],
- unsigned residual_samples,
- unsigned predictor_order,
- unsigned min_partition_order,
- unsigned max_partition_order
-)
-{
- int partition_order;
- unsigned from_partition, to_partition = 0;
- const unsigned blocksize = residual_samples + predictor_order;
-
- /* first do max_partition_order */
- for(partition_order = (int)max_partition_order; partition_order >= 0; partition_order--) {
- FLAC__int32 r;
- FLAC__uint32 rmax;
- unsigned partition, partition_sample, partition_samples, residual_sample;
- const unsigned partitions = 1u << partition_order;
- const unsigned default_partition_samples = blocksize >> partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- partition_samples = default_partition_samples;
- if(partition == 0)
- partition_samples -= predictor_order;
- rmax = 0;
- for(partition_sample = 0; partition_sample < partition_samples; partition_sample++) {
- r = residual[residual_sample++];
- /* OPT: maybe faster: rmax |= r ^ (r>>31) */
- if(r < 0)
- rmax |= ~r;
- else
- rmax |= r;
- }
- /* now we know all residual values are in the range [-rmax-1,rmax] */
- raw_bits_per_partition[partition] = rmax? FLAC__bitmath_ilog2(rmax) + 2 : 1;
- }
- to_partition = partitions;
- break; /*@@@ yuck, should remove the 'for' loop instead */
- }
-
- /* now merge partitions for lower orders */
- for(from_partition = 0, --partition_order; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned m;
- unsigned i;
- const unsigned partitions = 1u << partition_order;
- for(i = 0; i < partitions; i++) {
- m = raw_bits_per_partition[from_partition];
- from_partition++;
- raw_bits_per_partition[to_partition] = flac_max(m, raw_bits_per_partition[from_partition]);
- from_partition++;
- to_partition++;
- }
- }
-}
-
-#ifdef EXACT_RICE_BITS_CALCULATION
-static inline unsigned count_rice_bits_in_partition_(
- const unsigned rice_parameter,
- const unsigned partition_samples,
- const FLAC__int32 *residual
-)
-{
- unsigned i, partition_bits =
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
- (1+rice_parameter) * partition_samples /* 1 for unary stop bit + rice_parameter for the binary portion */
- ;
- for(i = 0; i < partition_samples; i++)
- partition_bits += ( (FLAC__uint32)((residual[i]<<1)^(residual[i]>>31)) >> rice_parameter );
- return partition_bits;
-}
-#else
-static inline unsigned count_rice_bits_in_partition_(
- const unsigned rice_parameter,
- const unsigned partition_samples,
- const FLAC__uint64 abs_residual_partition_sum
-)
-{
- return
- FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
- (1+rice_parameter) * partition_samples + /* 1 for unary stop bit + rice_parameter for the binary portion */
- (
- rice_parameter?
- (unsigned)(abs_residual_partition_sum >> (rice_parameter-1)) /* rice_parameter-1 because the real coder sign-folds instead of using a sign bit */
- : (unsigned)(abs_residual_partition_sum << 1) /* can't shift by negative number, so reverse */
- )
- - (partition_samples >> 1)
- /* -(partition_samples>>1) to subtract out extra contributions to the abs_residual_partition_sum.
- * The actual number of bits used is closer to the sum(for all i in the partition) of abs(residual[i])>>(rice_parameter-1)
- * By using the abs_residual_partition sum, we also add in bits in the LSBs that would normally be shifted out.
- * So the subtraction term tries to guess how many extra bits were contributed.
- * If the LSBs are randomly distributed, this should average to 0.5 extra bits per sample.
- */
- ;
-}
-#endif
-
-FLAC__bool set_partitioned_rice_(
-#ifdef EXACT_RICE_BITS_CALCULATION
- const FLAC__int32 residual[],
-#endif
- const FLAC__uint64 abs_residual_partition_sums[],
- const unsigned raw_bits_per_partition[],
- const unsigned residual_samples,
- const unsigned predictor_order,
- const unsigned suggested_rice_parameter,
- const unsigned rice_parameter_limit,
- const unsigned rice_parameter_search_dist,
- const unsigned partition_order,
- const FLAC__bool search_for_escapes,
- FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
- unsigned *bits
-)
-{
- unsigned rice_parameter, partition_bits;
- unsigned best_partition_bits, best_rice_parameter = 0;
- unsigned bits_ = FLAC__ENTROPY_CODING_METHOD_TYPE_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN;
- unsigned *parameters, *raw_bits;
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- unsigned min_rice_parameter, max_rice_parameter;
-#else
- (void)rice_parameter_search_dist;
-#endif
-
- FLAC__ASSERT(suggested_rice_parameter < FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER);
- FLAC__ASSERT(rice_parameter_limit <= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER);
-
- FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, flac_max(6u, partition_order));
- parameters = partitioned_rice_contents->parameters;
- raw_bits = partitioned_rice_contents->raw_bits;
-
- if(partition_order == 0) {
- best_partition_bits = (unsigned)(-1);
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- if(rice_parameter_search_dist) {
- if(suggested_rice_parameter < rice_parameter_search_dist)
- min_rice_parameter = 0;
- else
- min_rice_parameter = suggested_rice_parameter - rice_parameter_search_dist;
- max_rice_parameter = suggested_rice_parameter + rice_parameter_search_dist;
- if(max_rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @5\n", max_rice_parameter, rice_parameter_limit - 1);
-#endif
- max_rice_parameter = rice_parameter_limit - 1;
- }
- }
- else
- min_rice_parameter = max_rice_parameter = suggested_rice_parameter;
-
- for(rice_parameter = min_rice_parameter; rice_parameter <= max_rice_parameter; rice_parameter++) {
-#else
- rice_parameter = suggested_rice_parameter;
-#endif
-#ifdef EXACT_RICE_BITS_CALCULATION
- partition_bits = count_rice_bits_in_partition_(rice_parameter, residual_samples, residual);
-#else
- partition_bits = count_rice_bits_in_partition_(rice_parameter, residual_samples, abs_residual_partition_sums[0]);
-#endif
- if(partition_bits < best_partition_bits) {
- best_rice_parameter = rice_parameter;
- best_partition_bits = partition_bits;
- }
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- }
-#endif
- if(search_for_escapes) {
- partition_bits = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN + raw_bits_per_partition[0] * residual_samples;
- if(partition_bits <= best_partition_bits) {
- raw_bits[0] = raw_bits_per_partition[0];
- best_rice_parameter = 0; /* will be converted to appropriate escape parameter later */
- best_partition_bits = partition_bits;
- }
- else
- raw_bits[0] = 0;
- }
- parameters[0] = best_rice_parameter;
- bits_ += best_partition_bits;
- }
- else {
- unsigned partition, residual_sample;
- unsigned partition_samples;
- FLAC__uint64 mean, k;
- const unsigned partitions = 1u << partition_order;
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- partition_samples = (residual_samples+predictor_order) >> partition_order;
- if(partition == 0) {
- if(partition_samples <= predictor_order)
- return false;
- else
- partition_samples -= predictor_order;
- }
- mean = abs_residual_partition_sums[partition];
- /* we are basically calculating the size in bits of the
- * average residual magnitude in the partition:
- * rice_parameter = floor(log2(mean/partition_samples))
- * 'mean' is not a good name for the variable, it is
- * actually the sum of magnitudes of all residual values
- * in the partition, so the actual mean is
- * mean/partition_samples
- */
-#if 0 /* old simple code */
- for(rice_parameter = 0, k = partition_samples; k < mean; rice_parameter++, k <<= 1)
- ;
-#else
-#if defined FLAC__CPU_X86_64 /* and other 64-bit arch, too */
- if(mean <= 0x80000000/512) { /* 512: more or less optimal for both 16- and 24-bit input */
-#else
- if(mean <= 0x80000000/8) { /* 32-bit arch: use 32-bit math if possible */
-#endif
- FLAC__uint32 k2, mean2 = (FLAC__uint32) mean;
- rice_parameter = 0; k2 = partition_samples;
- while(k2*8 < mean2) { /* requires: mean <= (2^31)/8 */
- rice_parameter += 4; k2 <<= 4; /* tuned for 16-bit input */
- }
- while(k2 < mean2) { /* requires: mean <= 2^31 */
- rice_parameter++; k2 <<= 1;
- }
- }
- else {
- rice_parameter = 0; k = partition_samples;
- if(mean <= FLAC__U64L(0x8000000000000000)/128) /* usually mean is _much_ smaller than this value */
- while(k*128 < mean) { /* requires: mean <= (2^63)/128 */
- rice_parameter += 8; k <<= 8; /* tuned for 24-bit input */
- }
- while(k < mean) { /* requires: mean <= 2^63 */
- rice_parameter++; k <<= 1;
- }
- }
-#endif
- if(rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @6\n", rice_parameter, rice_parameter_limit - 1);
-#endif
- rice_parameter = rice_parameter_limit - 1;
- }
-
- best_partition_bits = (unsigned)(-1);
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- if(rice_parameter_search_dist) {
- if(rice_parameter < rice_parameter_search_dist)
- min_rice_parameter = 0;
- else
- min_rice_parameter = rice_parameter - rice_parameter_search_dist;
- max_rice_parameter = rice_parameter + rice_parameter_search_dist;
- if(max_rice_parameter >= rice_parameter_limit) {
-#ifdef DEBUG_VERBOSE
- fprintf(stderr, "clipping rice_parameter (%u -> %u) @7\n", max_rice_parameter, rice_parameter_limit - 1);
-#endif
- max_rice_parameter = rice_parameter_limit - 1;
- }
- }
- else
- min_rice_parameter = max_rice_parameter = rice_parameter;
-
- for(rice_parameter = min_rice_parameter; rice_parameter <= max_rice_parameter; rice_parameter++) {
-#endif
-#ifdef EXACT_RICE_BITS_CALCULATION
- partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, residual+residual_sample);
-#else
- partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, abs_residual_partition_sums[partition]);
-#endif
- if(partition_bits < best_partition_bits) {
- best_rice_parameter = rice_parameter;
- best_partition_bits = partition_bits;
- }
-#ifdef ENABLE_RICE_PARAMETER_SEARCH
- }
-#endif
- if(search_for_escapes) {
- partition_bits = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN + raw_bits_per_partition[partition] * partition_samples;
- if(partition_bits <= best_partition_bits) {
- raw_bits[partition] = raw_bits_per_partition[partition];
- best_rice_parameter = 0; /* will be converted to appropriate escape parameter later */
- best_partition_bits = partition_bits;
- }
- else
- raw_bits[partition] = 0;
- }
- parameters[partition] = best_rice_parameter;
- bits_ += best_partition_bits;
- residual_sample += partition_samples;
- }
- }
-
- *bits = bits_;
- return true;
-}
-
-unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples)
-{
- unsigned i, shift;
- FLAC__int32 x = 0;
-
- for(i = 0; i < samples && !(x&1); i++)
- x |= signal[i];
-
- if(x == 0) {
- shift = 0;
- }
- else {
- for(shift = 0; !(x&1); shift++)
- x >>= 1;
- }
-
- if(shift > 0) {
- for(i = 0; i < samples; i++)
- signal[i] >>= shift;
- }
-
- return shift;
-}
-
-void append_to_verify_fifo_(verify_input_fifo *fifo, const FLAC__int32 * const input[], unsigned input_offset, unsigned channels, unsigned wide_samples)
-{
- unsigned channel;
-
- for(channel = 0; channel < channels; channel++)
- memcpy(&fifo->data[channel][fifo->tail], &input[channel][input_offset], sizeof(FLAC__int32) * wide_samples);
-
- fifo->tail += wide_samples;
-
- FLAC__ASSERT(fifo->tail <= fifo->size);
-}
-
-void append_to_verify_fifo_interleaved_(verify_input_fifo *fifo, const FLAC__int32 input[], unsigned input_offset, unsigned channels, unsigned wide_samples)
-{
- unsigned channel;
- unsigned sample, wide_sample;
- unsigned tail = fifo->tail;
-
- sample = input_offset * channels;
- for(wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
- for(channel = 0; channel < channels; channel++)
- fifo->data[channel][tail] = input[sample++];
- tail++;
- }
- fifo->tail = tail;
-
- FLAC__ASSERT(fifo->tail <= fifo->size);
-}
-
-FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
- const size_t encoded_bytes = encoder->private_->verify.output.bytes;
- (void)decoder;
-
- if(encoder->private_->verify.needs_magic_hack) {
- FLAC__ASSERT(*bytes >= FLAC__STREAM_SYNC_LENGTH);
- *bytes = FLAC__STREAM_SYNC_LENGTH;
- memcpy(buffer, FLAC__STREAM_SYNC_STRING, *bytes);
- encoder->private_->verify.needs_magic_hack = false;
- }
- else {
- if(encoded_bytes == 0) {
- /*
- * If we get here, a FIFO underflow has occurred,
- * which means there is a bug somewhere.
- */
- FLAC__ASSERT(0);
- return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
- }
- else if(encoded_bytes < *bytes)
- *bytes = encoded_bytes;
- memcpy(buffer, encoder->private_->verify.output.data, *bytes);
- encoder->private_->verify.output.data += *bytes;
- encoder->private_->verify.output.bytes -= *bytes;
- }
-
- return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
-}
-
-FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder *)client_data;
- unsigned channel;
- const unsigned channels = frame->header.channels;
- const unsigned blocksize = frame->header.blocksize;
- const unsigned bytes_per_block = sizeof(FLAC__int32) * blocksize;
-
- (void)decoder;
-
- for(channel = 0; channel < channels; channel++) {
- if(0 != memcmp(buffer[channel], encoder->private_->verify.input_fifo.data[channel], bytes_per_block)) {
- unsigned i, sample = 0;
- FLAC__int32 expect = 0, got = 0;
-
- for(i = 0; i < blocksize; i++) {
- if(buffer[channel][i] != encoder->private_->verify.input_fifo.data[channel][i]) {
- sample = i;
- expect = (FLAC__int32)encoder->private_->verify.input_fifo.data[channel][i];
- got = (FLAC__int32)buffer[channel][i];
- break;
- }
- }
- FLAC__ASSERT(i < blocksize);
- FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
- encoder->private_->verify.error_stats.absolute_sample = frame->header.number.sample_number + sample;
- encoder->private_->verify.error_stats.frame_number = (unsigned)(frame->header.number.sample_number / blocksize);
- encoder->private_->verify.error_stats.channel = channel;
- encoder->private_->verify.error_stats.sample = sample;
- encoder->private_->verify.error_stats.expected = expect;
- encoder->private_->verify.error_stats.got = got;
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
- }
- }
- /* dequeue the frame from the fifo */
- encoder->private_->verify.input_fifo.tail -= blocksize;
- FLAC__ASSERT(encoder->private_->verify.input_fifo.tail <= OVERREAD_);
- for(channel = 0; channel < channels; channel++)
- memmove(&encoder->private_->verify.input_fifo.data[channel][0], &encoder->private_->verify.input_fifo.data[channel][blocksize], encoder->private_->verify.input_fifo.tail * sizeof(encoder->private_->verify.input_fifo.data[0][0]));
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
-}
-
-void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- (void)decoder, (void)metadata, (void)client_data;
-}
-
-void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
- (void)decoder, (void)status;
- encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
-}
-
-FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- (void)client_data;
-
- *bytes = fread(buffer, 1, *bytes, encoder->private_->file);
- if (*bytes == 0) {
- if (feof(encoder->private_->file))
- return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
- else if (ferror(encoder->private_->file))
- return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
- }
- return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
-}
-
-FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
-{
- (void)client_data;
-
- if(fseeko(encoder->private_->file, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
- return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
- else
- return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
-}
-
-FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
-{
- FLAC__off_t offset;
-
- (void)client_data;
-
- offset = ftello(encoder->private_->file);
-
- if(offset < 0) {
- return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
- }
- else {
- *absolute_byte_offset = (FLAC__uint64)offset;
- return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
- }
-}
-
-#ifdef FLAC__VALGRIND_TESTING
-static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
-{
- size_t ret = fwrite(ptr, size, nmemb, stream);
- if(!ferror(stream))
- fflush(stream);
- return ret;
-}
-#else
-#define local__fwrite fwrite
-#endif
-
-FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data)
-{
- (void)client_data, (void)current_frame;
-
- if(local__fwrite(buffer, sizeof(FLAC__byte), bytes, encoder->private_->file) == bytes) {
- FLAC__bool call_it = 0 != encoder->private_->progress_callback && (
-#if FLAC__HAS_OGG
- /* We would like to be able to use 'samples > 0' in the
- * clause here but currently because of the nature of our
- * Ogg writing implementation, 'samples' is always 0 (see
- * ogg_encoder_aspect.c). The downside is extra progress
- * callbacks.
- */
- encoder->private_->is_ogg? true :
-#endif
- samples > 0
- );
- if(call_it) {
- /* NOTE: We have to add +bytes, +samples, and +1 to the stats
- * because at this point in the callback chain, the stats
- * have not been updated. Only after we return and control
- * gets back to write_frame_() are the stats updated
- */
- encoder->private_->progress_callback(encoder, encoder->private_->bytes_written+bytes, encoder->private_->samples_written+samples, encoder->private_->frames_written+(samples?1:0), encoder->private_->total_frames_estimate, encoder->private_->client_data);
- }
- return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
- }
- else
- return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
-}
-
-/*
- * This will forcibly set stdout to binary mode (for OSes that require it)
- */
-FILE *get_binary_stdout_(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdout), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdout), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdout), O_BINARY);
-#endif
-
- return stdout;
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <string.h> /* for strlen() */
-#include "private/stream_encoder_framing.h"
-#include "private/crc.h"
-#include "FLAC/assert.h"
-#include "share/compat.h"
-
-static FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method);
-static FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order, const FLAC__bool is_extended);
-
-FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw)
-{
- unsigned i, j;
- const unsigned vendor_string_length = (unsigned)strlen(FLAC__VENDOR_STRING);
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->is_last, FLAC__STREAM_METADATA_IS_LAST_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->type, FLAC__STREAM_METADATA_TYPE_LEN))
- return false;
-
- /*
- * First, for VORBIS_COMMENTs, adjust the length to reflect our vendor string
- */
- i = metadata->length;
- if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
- FLAC__ASSERT(metadata->data.vorbis_comment.vendor_string.length == 0 || 0 != metadata->data.vorbis_comment.vendor_string.entry);
- i -= metadata->data.vorbis_comment.vendor_string.length;
- i += vendor_string_length;
- }
- FLAC__ASSERT(i < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
- /* double protection */
- if(i >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, i, FLAC__STREAM_METADATA_LENGTH_LEN))
- return false;
-
- switch(metadata->type) {
- case FLAC__METADATA_TYPE_STREAMINFO:
- FLAC__ASSERT(metadata->data.stream_info.min_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.max_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.min_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_framesize, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.max_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_framesize, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
- return false;
- FLAC__ASSERT(FLAC__format_sample_rate_is_valid(metadata->data.stream_info.sample_rate));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.sample_rate, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.channels > 0);
- FLAC__ASSERT(metadata->data.stream_info.channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.channels-1, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.bits_per_sample > 0);
- FLAC__ASSERT(metadata->data.stream_info.bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.bits_per_sample-1, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
- return false;
- FLAC__ASSERT(metadata->data.stream_info.total_samples < (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN));
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.stream_info.md5sum, 16))
- return false;
- break;
- case FLAC__METADATA_TYPE_PADDING:
- if(!FLAC__bitwriter_write_zeroes(bw, metadata->length * 8))
- return false;
- break;
- case FLAC__METADATA_TYPE_APPLICATION:
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.data, metadata->length - (FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)))
- return false;
- break;
- case FLAC__METADATA_TYPE_SEEKTABLE:
- for(i = 0; i < metadata->data.seek_table.num_points; i++) {
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].sample_number, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].stream_offset, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.seek_table.points[i].frame_samples, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
- return false;
- }
- break;
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, vendor_string_length))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)FLAC__VENDOR_STRING, vendor_string_length))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.num_comments))
- return false;
- for(i = 0; i < metadata->data.vorbis_comment.num_comments; i++) {
- if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.comments[i].length))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.vorbis_comment.comments[i].entry, metadata->data.vorbis_comment.comments[i].length))
- return false;
- }
- break;
- case FLAC__METADATA_TYPE_CUESHEET:
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.cue_sheet.media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.cue_sheet.lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.is_cd? 1 : 0, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.num_tracks, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
- return false;
- for(i = 0; i < metadata->data.cue_sheet.num_tracks; i++) {
- const FLAC__StreamMetadata_CueSheet_Track *track = metadata->data.cue_sheet.tracks + i;
-
- if(!FLAC__bitwriter_write_raw_uint64(bw, track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->number, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
- return false;
- FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->type, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->pre_emphasis, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, track->num_indices, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
- return false;
- for(j = 0; j < track->num_indices; j++) {
- const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + j;
-
- if(!FLAC__bitwriter_write_raw_uint64(bw, indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, indx->number, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
- return false;
- if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
- return false;
- }
- }
- break;
- case FLAC__METADATA_TYPE_PICTURE:
- {
- size_t len;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.type, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
- return false;
- len = strlen(metadata->data.picture.mime_type);
- if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.picture.mime_type, len))
- return false;
- len = strlen((const char *)metadata->data.picture.description);
- if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.description, len))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.data_length, FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
- return false;
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.data, metadata->data.picture.data_length))
- return false;
- }
- break;
- default:
- if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.unknown.data, metadata->length))
- return false;
- break;
- }
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
- return true;
-}
-
-FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw)
-{
- unsigned u, blocksize_hint, sample_rate_hint;
- FLAC__byte crc;
-
- FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__FRAME_HEADER_SYNC, FLAC__FRAME_HEADER_SYNC_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_RESERVED_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, (header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER)? 0 : 1, FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN))
- return false;
-
- FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
- /* when this assertion holds true, any legal blocksize can be expressed in the frame header */
- FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535u);
- blocksize_hint = 0;
- switch(header->blocksize) {
- case 192: u = 1; break;
- case 576: u = 2; break;
- case 1152: u = 3; break;
- case 2304: u = 4; break;
- case 4608: u = 5; break;
- case 256: u = 8; break;
- case 512: u = 9; break;
- case 1024: u = 10; break;
- case 2048: u = 11; break;
- case 4096: u = 12; break;
- case 8192: u = 13; break;
- case 16384: u = 14; break;
- case 32768: u = 15; break;
- default:
- if(header->blocksize <= 0x100)
- blocksize_hint = u = 6;
- else
- blocksize_hint = u = 7;
- break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
- return false;
-
- FLAC__ASSERT(FLAC__format_sample_rate_is_valid(header->sample_rate));
- sample_rate_hint = 0;
- switch(header->sample_rate) {
- case 88200: u = 1; break;
- case 176400: u = 2; break;
- case 192000: u = 3; break;
- case 8000: u = 4; break;
- case 16000: u = 5; break;
- case 22050: u = 6; break;
- case 24000: u = 7; break;
- case 32000: u = 8; break;
- case 44100: u = 9; break;
- case 48000: u = 10; break;
- case 96000: u = 11; break;
- default:
- if(header->sample_rate <= 255000 && header->sample_rate % 1000 == 0)
- sample_rate_hint = u = 12;
- else if(header->sample_rate % 10 == 0)
- sample_rate_hint = u = 14;
- else if(header->sample_rate <= 0xffff)
- sample_rate_hint = u = 13;
- else
- u = 0;
- break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_SAMPLE_RATE_LEN))
- return false;
-
- FLAC__ASSERT(header->channels > 0 && header->channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN) && header->channels <= FLAC__MAX_CHANNELS);
- switch(header->channel_assignment) {
- case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
- u = header->channels - 1;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 8;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 9;
- break;
- case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
- FLAC__ASSERT(header->channels == 2);
- u = 10;
- break;
- default:
- FLAC__ASSERT(0);
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN))
- return false;
-
- FLAC__ASSERT(header->bits_per_sample > 0 && header->bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
- switch(header->bits_per_sample) {
- case 8 : u = 1; break;
- case 12: u = 2; break;
- case 16: u = 4; break;
- case 20: u = 5; break;
- case 24: u = 6; break;
- default: u = 0; break;
- }
- if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_ZERO_PAD_LEN))
- return false;
-
- if(header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
- if(!FLAC__bitwriter_write_utf8_uint32(bw, header->number.frame_number))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_utf8_uint64(bw, header->number.sample_number))
- return false;
- }
-
- if(blocksize_hint)
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->blocksize-1, (blocksize_hint==6)? 8:16))
- return false;
-
- switch(sample_rate_hint) {
- case 12:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 1000, 8))
- return false;
- break;
- case 13:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate, 16))
- return false;
- break;
- case 14:
- if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 10, 16))
- return false;
- break;
- }
-
- /* write the CRC */
- if(!FLAC__bitwriter_get_write_crc8(bw, &crc))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, crc, FLAC__FRAME_HEADER_CRC_LEN))
- return false;
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- FLAC__bool ok;
-
- ok =
- FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN) &&
- (wasted_bits? FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1) : true) &&
- FLAC__bitwriter_write_raw_int32(bw, subframe->value, subframe_bps)
- ;
-
- return ok;
-}
-
-FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK | (subframe->order<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps))
- return false;
-
- if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
- return false;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!add_residual_partitioned_rice_(
- bw,
- subframe->residual,
- residual_samples,
- subframe->order,
- subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
- subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
- subframe->entropy_coding_method.data.partitioned_rice.order,
- /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
- ))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, unsigned residual_samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK | ((subframe->order-1)<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->warmup[i], subframe_bps))
- return false;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
- return false;
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
- return false;
- for(i = 0; i < subframe->order; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
- return false;
-
- if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
- return false;
- switch(subframe->entropy_coding_method.type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!add_residual_partitioned_rice_(
- bw,
- subframe->residual,
- residual_samples,
- subframe->order,
- subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
- subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
- subframe->entropy_coding_method.data.partitioned_rice.order,
- /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
- ))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
-
- return true;
-}
-
-FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, unsigned samples, unsigned subframe_bps, unsigned wasted_bits, FLAC__BitWriter *bw)
-{
- unsigned i;
- const FLAC__int32 *signal = subframe->data;
-
- if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
- return false;
- if(wasted_bits)
- if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
- return false;
-
- for(i = 0; i < samples; i++)
- if(!FLAC__bitwriter_write_raw_int32(bw, signal[i], subframe_bps))
- return false;
-
- return true;
-}
-
-FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method)
-{
- if(!FLAC__bitwriter_write_raw_uint32(bw, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
- return false;
- switch(method->type) {
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
- case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
- if(!FLAC__bitwriter_write_raw_uint32(bw, method->data.partitioned_rice.order, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
- return false;
- break;
- default:
- FLAC__ASSERT(0);
- }
- return true;
-}
-
-FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const unsigned residual_samples, const unsigned predictor_order, const unsigned rice_parameters[], const unsigned raw_bits[], const unsigned partition_order, const FLAC__bool is_extended)
-{
- const unsigned plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
- const unsigned pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
-
- if(partition_order == 0) {
- unsigned i;
-
- if(raw_bits[0] == 0) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[0], plen))
- return false;
- if(!FLAC__bitwriter_write_rice_signed_block(bw, residual, residual_samples, rice_parameters[0]))
- return false;
- }
- else {
- FLAC__ASSERT(rice_parameters[0] == 0);
- if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false;
- for(i = 0; i < residual_samples; i++) {
- if(!FLAC__bitwriter_write_raw_int32(bw, residual[i], raw_bits[0]))
- return false;
- }
- }
- return true;
- }
- else {
- unsigned i, j, k = 0, k_last = 0;
- unsigned partition_samples;
- const unsigned default_partition_samples = (residual_samples+predictor_order) >> partition_order;
- for(i = 0; i < (1u<<partition_order); i++) {
- partition_samples = default_partition_samples;
- if(i == 0)
- partition_samples -= predictor_order;
- k += partition_samples;
- if(raw_bits[i] == 0) {
- if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[i], plen))
- return false;
- if(!FLAC__bitwriter_write_rice_signed_block(bw, residual+k_last, k-k_last, rice_parameters[i]))
- return false;
- }
- else {
- if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
- return false;
- if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
- return false;
- for(j = k_last; j < k; j++) {
- if(!FLAC__bitwriter_write_raw_int32(bw, residual[j], raw_bits[i]))
- return false;
- }
- }
- k_last = k;
- }
- return true;
- }
-}
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/stream_encoder.h"
-#include "private/bitmath.h"
-#ifdef FLAC__AVX2_SUPPORTED
-
-#include <stdlib.h> /* for abs() */
-#include <immintrin.h> /* AVX2 */
-#include "FLAC/assert.h"
-
-FLAC__SSE_TARGET("avx2")
-void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
-{
- const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
- unsigned partitions = 1u << max_partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- /* first do max_partition_order */
- {
- const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
- unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
-
- if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m256i sum256 = _mm256_setzero_si256();
- __m128i sum128;
- end += default_partition_samples;
-
- for( ; (int)residual_sample < (int)end-7; residual_sample+=8) {
- __m256i res256 = _mm256_abs_epi32(_mm256_loadu_si256((const __m256i*)(residual+residual_sample)));
- sum256 = _mm256_add_epi32(sum256, res256);
- }
-
- sum128 = _mm_add_epi32(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
-
- for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
- __m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
- sum128 = _mm_add_epi32(sum128, res128);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- sum128 = _mm_add_epi32(sum128, res128);
- }
-
- sum128 = _mm_hadd_epi32(sum128, sum128);
- sum128 = _mm_hadd_epi32(sum128, sum128);
- abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(sum128);
-/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
-#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
- abs_residual_partition_sums[partition] &= 0xFFFFFFFF; /**/
-#endif
- }
- }
- else { /* have to pessimistically use 64 bits for accumulator */
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m256i sum256 = _mm256_setzero_si256();
- __m128i sum128;
- end += default_partition_samples;
-
- for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
- __m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
- __m256i res256 = _mm256_cvtepu32_epi64(res128);
- sum256 = _mm256_add_epi64(sum256, res256);
- }
-
- sum128 = _mm_add_epi64(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
-
- for( ; (int)residual_sample < (int)end-1; residual_sample+=2) {
- __m128i res128 = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample)));
- res128 = _mm_cvtepu32_epi64(res128);
- sum128 = _mm_add_epi64(sum128, res128);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- sum128 = _mm_add_epi64(sum128, res128);
- }
-
- sum128 = _mm_add_epi64(sum128, _mm_srli_si128(sum128, 8));
- _mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), sum128);
- }
- }
- }
-
- /* now merge partitions for lower orders */
- {
- unsigned from_partition = 0, to_partition = partitions;
- int partition_order;
- for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned i;
- partitions >>= 1;
- for(i = 0; i < partitions; i++) {
- abs_residual_partition_sums[to_partition++] =
- abs_residual_partition_sums[from_partition ] +
- abs_residual_partition_sums[from_partition+1];
- from_partition += 2;
- }
- }
- }
- _mm256_zeroupper();
-}
-
-#endif /* FLAC__AVX2_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/stream_encoder.h"
-#include "private/bitmath.h"
-#ifdef FLAC__SSE2_SUPPORTED
-
-#include <stdlib.h> /* for abs() */
-#include <emmintrin.h> /* SSE2 */
-#include "FLAC/assert.h"
-#include "share/compat.h"
-
-FLAC__SSE_TARGET("sse2")
-static inline __m128i local_abs_epi32(__m128i val)
-{
- __m128i mask = _mm_srai_epi32(val, 31);
- val = _mm_xor_si128(val, mask);
- val = _mm_sub_epi32(val, mask);
- return val;
-}
-
-
-FLAC__SSE_TARGET("sse2")
-void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
-{
- const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
- unsigned partitions = 1u << max_partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- /* first do max_partition_order */
- {
- const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
- unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
-
- if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m128i mm_sum = _mm_setzero_si128();
- unsigned e1, e3;
- end += default_partition_samples;
-
- e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
- if(e1 > end)
- e1 = end; /* try flac -l 1 -b 16 and you'll be here */
-
- /* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
- for( ; residual_sample < e1; residual_sample++) {
- __m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- for( ; residual_sample < e3; residual_sample+=4) {
- __m128i mm_res = local_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 8));
- mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 4));
- abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
-/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
-#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
- abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
-#endif
- }
- }
- else { /* have to pessimistically use 64 bits for accumulator */
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m128i mm_sum = _mm_setzero_si128();
- unsigned e1, e3;
- end += default_partition_samples;
-
- e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
- FLAC__ASSERT(e1 <= end);
-
- for( ; residual_sample < e1; residual_sample++) {
- __m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /* 0 0 0 |r0| == 00 |r0_64| */
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- for( ; residual_sample < e3; residual_sample+=2) {
- __m128i mm_res = local_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample))); /* 0 0 |r1| |r0| */
- mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0 |r1| 0 |r0| == |r1_64| |r0_64| */
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
- _mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), mm_sum);
- }
- }
- }
-
- /* now merge partitions for lower orders */
- {
- unsigned from_partition = 0, to_partition = partitions;
- int partition_order;
- for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned i;
- partitions >>= 1;
- for(i = 0; i < partitions; i++) {
- abs_residual_partition_sums[to_partition++] =
- abs_residual_partition_sums[from_partition ] +
- abs_residual_partition_sums[from_partition+1];
- from_partition += 2;
- }
- }
- }
-}
-
-#endif /* FLAC__SSE2_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "private/cpu.h"
-
-#ifndef FLAC__NO_ASM
-#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
-#include "private/stream_encoder.h"
-#include "private/bitmath.h"
-#ifdef FLAC__SSSE3_SUPPORTED
-
-#include <stdlib.h> /* for abs() */
-#include <tmmintrin.h> /* SSSE3 */
-#include "FLAC/assert.h"
-
-FLAC__SSE_TARGET("ssse3")
-void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
- unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
-{
- const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
- unsigned partitions = 1u << max_partition_order;
-
- FLAC__ASSERT(default_partition_samples > predictor_order);
-
- /* first do max_partition_order */
- {
- const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
- unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
-
- if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m128i mm_sum = _mm_setzero_si128();
- unsigned e1, e3;
- end += default_partition_samples;
-
- e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
- if(e1 > end)
- e1 = end; /* try flac -l 1 -b 16 and you'll be here */
-
- /* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
- for( ; residual_sample < e1; residual_sample++) {
- __m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- for( ; residual_sample < e3; residual_sample+=4) {
- __m128i mm_res = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi32(mm_sum, mm_res);
- }
-
- mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
- mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
- abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
-/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
-#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
- abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
-#endif
- }
- }
- else { /* have to pessimistically use 64 bits for accumulator */
- for(partition = residual_sample = 0; partition < partitions; partition++) {
- __m128i mm_sum = _mm_setzero_si128();
- unsigned e1, e3;
- end += default_partition_samples;
-
- e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
- FLAC__ASSERT(e1 <= end);
-
- for( ; residual_sample < e1; residual_sample++) {
- __m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /* 0 0 0 |r0| == 00 |r0_64| */
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- for( ; residual_sample < e3; residual_sample+=2) {
- __m128i mm_res = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample))); /* 0 0 |r1| |r0| */
- mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0 |r1| 0 |r0| == |r1_64| |r0_64| */
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- for( ; residual_sample < end; residual_sample++) {
- __m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
- mm_sum = _mm_add_epi64(mm_sum, mm_res);
- }
-
- mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
- _mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), mm_sum);
- }
- }
- }
-
- /* now merge partitions for lower orders */
- {
- unsigned from_partition = 0, to_partition = partitions;
- int partition_order;
- for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
- unsigned i;
- partitions >>= 1;
- for(i = 0; i < partitions; i++) {
- abs_residual_partition_sums[to_partition++] =
- abs_residual_partition_sums[from_partition ] +
- abs_residual_partition_sums[from_partition+1];
- from_partition += 2;
- }
- }
- }
-}
-
-#endif /* FLAC__SSSE3_SUPPORTED */
-#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
-#endif /* FLAC__NO_ASM */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2006-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <math.h>
-#include "share/compat.h"
-#include "FLAC/assert.h"
-#include "FLAC/format.h"
-#include "private/window.h"
-
-#ifndef FLAC__INTEGER_ONLY_LIBRARY
-
-
-void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- if (L & 1) {
- for (n = 0; n <= N/2; n++)
- window[n] = 2.0f * n / (float)N;
- for (; n <= N; n++)
- window[n] = 2.0f - 2.0f * n / (float)N;
- }
- else {
- for (n = 0; n <= L/2-1; n++)
- window[n] = 2.0f * n / (float)N;
- for (; n <= N; n++)
- window[n] = 2.0f - 2.0f * n / (float)N;
- }
-}
-
-void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.62f - 0.48f * fabs((float)n/(float)N-0.5f) - 0.38f * cos(2.0f * M_PI * ((float)n/(float)N)));
-}
-
-void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.42f - 0.5f * cos(2.0f * M_PI * n / N) + 0.08f * cos(4.0f * M_PI * n / N));
-}
-
-/* 4-term -92dB side-lobe */
-void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++)
- window[n] = (FLAC__real)(0.35875f - 0.48829f * cos(2.0f * M_PI * n / N) + 0.14128f * cos(4.0f * M_PI * n / N) - 0.01168f * cos(6.0f * M_PI * n / N));
-}
-
-void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- double k = ((double)n - N2) / N2;
- k = 1.0f - k * k;
- window[n] = (FLAC__real)(k * k);
- }
-}
-
-void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(1.0f - 1.93f * cos(2.0f * M_PI * n / N) + 1.29f * cos(4.0f * M_PI * n / N) - 0.388f * cos(6.0f * M_PI * n / N) + 0.0322f * cos(8.0f * M_PI * n / N));
-}
-
-void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- const double k = ((double)n - N2) / (stddev * N2);
- window[n] = (FLAC__real)exp(-0.5f * k * k);
- }
-}
-
-void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.54f - 0.46f * cos(2.0f * M_PI * n / N));
-}
-
-void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(2.0f * M_PI * n / N));
-}
-
-void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.402f - 0.498f * cos(2.0f * M_PI * n / N) + 0.098f * cos(4.0f * M_PI * n / N) - 0.001f * cos(6.0f * M_PI * n / N));
-}
-
-void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = (FLAC__real)(0.3635819f - 0.4891775f*cos(2.0f*M_PI*n/N) + 0.1365995f*cos(4.0f*M_PI*n/N) - 0.0106411f*cos(6.0f*M_PI*n/N));
-}
-
-void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L)
-{
- FLAC__int32 n;
-
- for (n = 0; n < L; n++)
- window[n] = 1.0f;
-}
-
-void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L)
-{
- FLAC__int32 n;
-
- if (L & 1) {
- for (n = 1; n <= (L+1)/2; n++)
- window[n-1] = 2.0f * n / ((float)L + 1.0f);
- for (; n <= L; n++)
- window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
- }
- else {
- for (n = 1; n <= L/2; n++)
- window[n-1] = 2.0f * n / ((float)L + 1.0f);
- for (; n <= L; n++)
- window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
- }
-}
-
-void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p)
-{
- if (p <= 0.0)
- FLAC__window_rectangle(window, L);
- else if (p >= 1.0)
- FLAC__window_hann(window, L);
- else {
- const FLAC__int32 Np = (FLAC__int32)(p / 2.0f * L) - 1;
- FLAC__int32 n;
- /* start with rectangle... */
- FLAC__window_rectangle(window, L);
- /* ...replace ends with hann */
- if (Np > 0) {
- for (n = 0; n <= Np; n++) {
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * n / Np));
- window[L-Np-1+n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * (n+Np) / Np));
- }
- }
- }
-}
-
-void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
-{
- const FLAC__int32 start_n = (FLAC__int32)(start * L);
- const FLAC__int32 end_n = (FLAC__int32)(end * L);
- const FLAC__int32 N = end_n - start_n;
- FLAC__int32 Np, n, i;
-
- if (p <= 0.0f)
- FLAC__window_partial_tukey(window, L, 0.05f, start, end);
- else if (p >= 1.0f)
- FLAC__window_partial_tukey(window, L, 0.95f, start, end);
- else {
-
- Np = (FLAC__int32)(p / 2.0f * N);
-
- for (n = 0; n < start_n && n < L; n++)
- window[n] = 0.0f;
- for (i = 1; n < (start_n+Np) && n < L; n++, i++)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Np));
- for (; n < (end_n-Np) && n < L; n++)
- window[n] = 1.0f;
- for (i = Np; n < end_n && n < L; n++, i--)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Np));
- for (; n < L; n++)
- window[n] = 0.0f;
- }
-}
-
-void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
-{
- const FLAC__int32 start_n = (FLAC__int32)(start * L);
- const FLAC__int32 end_n = (FLAC__int32)(end * L);
- FLAC__int32 Ns, Ne, n, i;
-
- if (p <= 0.0f)
- FLAC__window_punchout_tukey(window, L, 0.05f, start, end);
- else if (p >= 1.0f)
- FLAC__window_punchout_tukey(window, L, 0.95f, start, end);
- else {
-
- Ns = (FLAC__int32)(p / 2.0f * start_n);
- Ne = (FLAC__int32)(p / 2.0f * (L - end_n));
-
- for (n = 0, i = 1; n < Ns && n < L; n++, i++)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ns));
- for (; n < start_n-Ns && n < L; n++)
- window[n] = 1.0f;
- for (i = Ns; n < start_n && n < L; n++, i--)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ns));
- for (; n < end_n && n < L; n++)
- window[n] = 0.0f;
- for (i = 1; n < end_n+Ne && n < L; n++, i++)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ne));
- for (; n < L - (Ne) && n < L; n++)
- window[n] = 1.0f;
- for (i = Ne; n < L; n++, i--)
- window[n] = (FLAC__real)(0.5f - 0.5f * cos(M_PI * i / Ne));
- }
-}
-
-void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L)
-{
- const FLAC__int32 N = L - 1;
- const double N2 = (double)N / 2.;
- FLAC__int32 n;
-
- for (n = 0; n <= N; n++) {
- const double k = ((double)n - N2) / N2;
- window[n] = (FLAC__real)(1.0f - k * k);
- }
-}
-
-#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <io.h>
-#include "share/windows_unicode_filenames.h"
-
-/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
-static wchar_t *wchar_from_utf8(const char *str)
-{
- wchar_t *widestr;
- int len;
-
- if (!str)
- return NULL;
- if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
- return NULL;
- if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
- return NULL;
- if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
- free(widestr);
- widestr = NULL;
- }
-
- return widestr;
-}
-
-
-static FLAC__bool utf8_filenames = false;
-
-
-void flac_internal_set_utf8_filenames(FLAC__bool flag)
-{
- utf8_filenames = flag ? true : false;
-}
-
-FLAC__bool flac_internal_get_utf8_filenames(void)
-{
- return utf8_filenames;
-}
-
-/* file functions */
-
-FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
-{
- if (!utf8_filenames) {
- return fopen(filename, mode);
- } else {
- wchar_t *wname = NULL;
- wchar_t *wmode = NULL;
- FILE *f = NULL;
-
- do {
- if (!(wname = wchar_from_utf8(filename))) break;
- if (!(wmode = wchar_from_utf8(mode))) break;
- f = _wfopen(wname, wmode);
- } while(0);
-
- free(wname);
- free(wmode);
-
- return f;
- }
-}
-
-int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
-{
- if (!utf8_filenames) {
- return _stat64(path, buffer);
- } else {
- wchar_t *wpath;
- int ret;
-
- if (!(wpath = wchar_from_utf8(path))) return -1;
- ret = _wstat64(wpath, buffer);
- free(wpath);
-
- return ret;
- }
-}
-
-int flac_internal_chmod_utf8(const char *filename, int pmode)
-{
- if (!utf8_filenames) {
- return _chmod(filename, pmode);
- } else {
- wchar_t *wname;
- int ret;
-
- if (!(wname = wchar_from_utf8(filename))) return -1;
- ret = _wchmod(wname, pmode);
- free(wname);
-
- return ret;
- }
-}
-
-int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
-{
- if (!utf8_filenames) {
- return utime(filename, times);
- } else {
- wchar_t *wname;
- struct __utimbuf64 ut;
- int ret;
-
- if (!(wname = wchar_from_utf8(filename))) return -1;
- ut.actime = times->actime;
- ut.modtime = times->modtime;
- ret = _wutime64(wname, &ut);
- free(wname);
-
- return ret;
- }
-}
-
-int flac_internal_unlink_utf8(const char *filename)
-{
- if (!utf8_filenames) {
- return _unlink(filename);
- } else {
- wchar_t *wname;
- int ret;
-
- if (!(wname = wchar_from_utf8(filename))) return -1;
- ret = _wunlink(wname);
- free(wname);
-
- return ret;
- }
-}
-
-int flac_internal_rename_utf8(const char *oldname, const char *newname)
-{
- if (!utf8_filenames) {
- return rename(oldname, newname);
- } else {
- wchar_t *wold = NULL;
- wchar_t *wnew = NULL;
- int ret = -1;
-
- do {
- if (!(wold = wchar_from_utf8(oldname))) break;
- if (!(wnew = wchar_from_utf8(newname))) break;
- ret = _wrename(wold, wnew);
- } while(0);
-
- free(wold);
- free(wnew);
-
- return ret;
- }
-}
-
-HANDLE WINAPI flac_internal_CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
-{
-#if _MSC_VER > 1900 && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
- wchar_t *wname;
- HANDLE handle = INVALID_HANDLE_VALUE;
-
- if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
-
- handle = CreateFile2(wname, dwDesiredAccess, dwShareMode, CREATE_ALWAYS, NULL);
- free(wname);
- }
-
- return handle;
-#else
- if (!utf8_filenames) {
- return CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
- } else {
- wchar_t *wname;
- HANDLE handle = INVALID_HANDLE_VALUE;
-
- if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
- handle = CreateFileW(wname, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
- free(wname);
- }
-
- return handle;
- }
-#endif
-}
+++ /dev/null
-# FLAC - Free Lossless Audio Codec
-# Copyright (C) 2002-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# This file is part the FLAC project. FLAC is comprised of several
-# components distributed under different licenses. The codec libraries
-# are distributed under Xiph.Org's BSD-like license (see the file
-# COPYING.Xiph in this distribution). All other programs, libraries, and
-# plugins are distributed under the GPL (see COPYING.GPL). The documentation
-# is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
-# FLAC distribution contains at the top the terms under which it may be
-# distributed.
-#
-# Since this particular file is relevant to all components of FLAC,
-# it may be distributed under the Xiph.Org license, which is the least
-# restrictive of those mentioned above. See the file COPYING.Xiph in this
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-
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-
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-
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+++ /dev/null
-# Makefile.in generated by automake 1.15 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
-
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-# Copyright (C) 2002-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
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-# components distributed under different licenses. The codec libraries
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-# plugins are distributed under the GPL (see COPYING.GPL). The documentation
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-# FLAC - Free Lossless Audio Codec
-# Copyright (C) 2001-2009 Josh Coalson
-# Copyright (C) 2011-2016 Xiph.Org Foundation
-#
-# This file is part the FLAC project. FLAC is comprised of several
-# components distributed under different licenses. The codec libraries
-# are distributed under Xiph.Org's BSD-like license (see the file
-# COPYING.Xiph in this distribution). All other programs, libraries, and
-# plugins are distributed under the GPL (see COPYING.GPL). The documentation
-# is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
-# FLAC distribution contains at the top the terms under which it may be
-# distributed.
-#
-# Since this particular file is relevant to all components of FLAC,
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- -(cd win_utf8_io ; $(MAKE) -f Makefile.lite clean)
+++ /dev/null
-This directory contains several convenience libraries used by the rest of the
-tools and plugins. Two of them (getopt and utf8) are shamelessly copied from
-vorbistools, one for manipulating UTF-8 strings (GPL) and one for implementing
-getopt (LGPL). libFLAC does not link to either; the only FLAC tools that do
-are GPL'ed.
+++ /dev/null
-#
-# GNU makefile
-#
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-
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-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/*
- NOTE:
- I cannot get the vanilla getopt code to work (i.e. compile only what
- is needed and not duplicate symbols found in the standard library)
- on all the platforms that FLAC supports. In particular the gating
- of code with the ELIDE_CODE #define is not accurate enough on systems
- that are POSIX but not glibc. If someone has a patch that works on
- GNU/Linux, Darwin, AND Solaris please submit it on the project page:
- https://sourceforge.net/p/flac/patches/
-
- In the meantime I have munged the global symbols and removed gates
- around code, while at the same time trying to touch the original as
- little as possible.
-*/
-/* Getopt for GNU.
- NOTE: getopt is now part of the C library, so if you don't know what
- "Keep this file name-space clean" means, talk to drepper@gnu.org
- before changing it!
-
- Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
- Free Software Foundation, Inc.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-\f
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
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-# define _NO_PROTO
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
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-# ifndef const
-# define const
-# endif
-#endif
-
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-
-/* Comment out all this code if we are using the GNU C Library, and are not
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- Library, but also included in many other GNU distributions. Compiling
- and linking in this code is a waste when using the GNU C library
- (especially if it is a shared library). Rather than having every GNU
- program understand `configure --with-gnu-libc' and omit the object files,
- it is simpler to just do this in the source for each such file. */
-
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-# include <gnu-versions.h>
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-# endif
-#endif
-
-#if 1
-/*[JEC] was:#ifndef ELIDE_CODE*/
-
-
-/* This needs to come after some library #include
- to get __GNU_LIBRARY__ defined. */
-#ifdef __GNU_LIBRARY__
-/* Don't include stdlib.h for non-GNU C libraries because some of them
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-# include <stdlib.h>
-# include <unistd.h>
-#endif /* GNU C library. */
-
-#ifdef VMS
-# include <unixlib.h>
-# if HAVE_STRING_H - 0
-# include <string.h>
-# endif
-#endif
-
-#ifndef _
-/* This is for other GNU distributions with internationalized messages.
- When compiling libc, the _ macro is predefined. */
-# ifdef HAVE_LIBINTL_H
-# include <libintl.h>
-# define _(msgid) gettext (msgid)
-# else
-# define _(msgid) (msgid)
-# endif
-#endif
-
-/* This version of `share__getopt' appears to the caller like standard Unix `getopt'
- but it behaves differently for the user, since it allows the user
- to intersperse the options with the other arguments.
-
- As `share__getopt' works, it permutes the elements of ARGV so that,
- when it is done, all the options precede everything else. Thus
- all application programs are extended to handle flexible argument order.
-
- Setting the environment variable POSIXLY_CORRECT disables permutation.
- Then the behavior is completely standard.
-
- GNU application programs can use a third alternative mode in which
- they can distinguish the relative order of options and other arguments. */
-
-#include "share/getopt.h"
-/*[JEC] was:#include "getopt.h"*/
-
-/* For communication from `share__getopt' to the caller.
- When `share__getopt' finds an option that takes an argument,
- the argument value is returned here.
- Also, when `ordering' is RETURN_IN_ORDER,
- each non-option ARGV-element is returned here. */
-
-char *share__optarg = 0; /*[JEC] initialize to avoid being a 'Common' symbol */
-
-/* Index in ARGV of the next element to be scanned.
- This is used for communication to and from the caller
- and for communication between successive calls to `share__getopt'.
-
- On entry to `share__getopt', zero means this is the first call; initialize.
-
- When `share__getopt' returns -1, this is the index of the first of the
- non-option elements that the caller should itself scan.
-
- Otherwise, `share__optind' communicates from one call to the next
- how much of ARGV has been scanned so far. */
-
-/* 1003.2 says this must be 1 before any call. */
-int share__optind = 1;
-
-/* Formerly, initialization of getopt depended on share__optind==0, which
- causes problems with re-calling getopt as programs generally don't
- know that. */
-
-static int share____getopt_initialized = 0;
-
-/* The next char to be scanned in the option-element
- in which the last option character we returned was found.
- This allows us to pick up the scan where we left off.
-
- If this is zero, or a null string, it means resume the scan
- by advancing to the next ARGV-element. */
-
-static char *nextchar;
-
-/* Callers store zero here to inhibit the error message
- for unrecognized options. */
-
-int share__opterr = 1;
-
-/* Set to an option character which was unrecognized.
- This must be initialized on some systems to avoid linking in the
- system's own getopt implementation. */
-
-int share__optopt = '?';
-
-/* Describe how to deal with options that follow non-option ARGV-elements.
-
- If the caller did not specify anything,
- the default is REQUIRE_ORDER if the environment variable
- POSIXLY_CORRECT is defined, PERMUTE otherwise.
-
- REQUIRE_ORDER means don't recognize them as options;
- stop option processing when the first non-option is seen.
- This is what Unix does.
- This mode of operation is selected by either setting the environment
- variable POSIXLY_CORRECT, or using `+' as the first character
- of the list of option characters.
-
- PERMUTE is the default. We permute the contents of ARGV as we scan,
- so that eventually all the non-options are at the end. This allows options
- to be given in any order, even with programs that were not written to
- expect this.
-
- RETURN_IN_ORDER is an option available to programs that were written
- to expect options and other ARGV-elements in any order and that care about
- the ordering of the two. We describe each non-option ARGV-element
- as if it were the argument of an option with character code 1.
- Using `-' as the first character of the list of option characters
- selects this mode of operation.
-
- The special argument `--' forces an end of option-scanning regardless
- of the value of `ordering'. In the case of RETURN_IN_ORDER, only
- `--' can cause `share__getopt' to return -1 with `share__optind' != ARGC. */
-
-static enum
-{
- REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
-} ordering;
-
-/* Value of POSIXLY_CORRECT environment variable. */
-static char *posixly_correct;
-\f
-#ifdef __GNU_LIBRARY__
-/* We want to avoid inclusion of string.h with non-GNU libraries
- because there are many ways it can cause trouble.
- On some systems, it contains special magic macros that don't work
- in GCC. */
-# include <string.h>
-# define my_index strchr
-#else
-
-#include <string.h>
-
-/* Avoid depending on library functions or files
- whose names are inconsistent. */
-
-#ifndef getenv
-extern char *getenv (const char * name);
-#endif
-
-static char *
-my_index (const char *str, int chr)
-{
- while (*str)
- {
- if (*str == chr)
- return (char *) str;
- str++;
- }
- return 0;
-}
-
-/* If using GCC, we can safely declare strlen this way.
- If not using GCC, it is ok not to declare it. */
-#ifdef __GNUC__
-/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
- That was relevant to code that was here before. */
-# if (!defined __STDC__ || !__STDC__) && !defined strlen
-/* gcc with -traditional declares the built-in strlen to return int,
- and has done so at least since version 2.4.5. -- rms. */
-extern int strlen (const char *);
-# endif /* not __STDC__ */
-#endif /* __GNUC__ */
-
-#endif /* not __GNU_LIBRARY__ */
-\f
-/* Handle permutation of arguments. */
-
-/* Describe the part of ARGV that contains non-options that have
- been skipped. `first_nonopt' is the index in ARGV of the first of them;
- `last_nonopt' is the index after the last of them. */
-
-static int first_nonopt;
-static int last_nonopt;
-
-#ifdef _LIBC
-/* Bash 2.0 gives us an environment variable containing flags
- indicating ARGV elements that should not be considered arguments. */
-
-/* Defined in getopt_init.c */
-extern char *__getopt_nonoption_flags;
-
-static int nonoption_flags_max_len;
-static int nonoption_flags_len;
-
-static int original_argc;
-static char *const *original_argv;
-
-/* Make sure the environment variable bash 2.0 puts in the environment
- is valid for the getopt call we must make sure that the ARGV passed
- to getopt is that one passed to the process. */
-static void
-__attribute__ ((unused))
-store_args_and_env (int argc, char *const *argv)
-{
- /* XXX This is no good solution. We should rather copy the args so
- that we can compare them later. But we must not use malloc(3). */
- original_argc = argc;
- original_argv = argv;
-}
-# ifdef text_set_element
-text_set_element (__libc_subinit, store_args_and_env);
-# endif /* text_set_element */
-
-# define SWAP_FLAGS(ch1, ch2) \
- if (nonoption_flags_len > 0) \
- { \
- char __tmp = __getopt_nonoption_flags[ch1]; \
- __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
- __getopt_nonoption_flags[ch2] = __tmp; \
- }
-#else /* !_LIBC */
-# define SWAP_FLAGS(ch1, ch2)
-#endif /* _LIBC */
-
-/* Exchange two adjacent subsequences of ARGV.
- One subsequence is elements [first_nonopt,last_nonopt)
- which contains all the non-options that have been skipped so far.
- The other is elements [last_nonopt,share__optind), which contains all
- the options processed since those non-options were skipped.
-
- `first_nonopt' and `last_nonopt' are relocated so that they describe
- the new indices of the non-options in ARGV after they are moved. */
-
-#if defined __STDC__ && __STDC__
-static void exchange (char **);
-#endif
-
-static void
-exchange (argv)
- char **argv;
-{
- int bottom = first_nonopt;
- int middle = last_nonopt;
- int top = share__optind;
- char *tem;
-
- /* Exchange the shorter segment with the far end of the longer segment.
- That puts the shorter segment into the right place.
- It leaves the longer segment in the right place overall,
- but it consists of two parts that need to be swapped next. */
-
-#ifdef _LIBC
- /* First make sure the handling of the `__getopt_nonoption_flags'
- string can work normally. Our top argument must be in the range
- of the string. */
- if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
- {
- /* We must extend the array. The user plays games with us and
- presents new arguments. */
- char *new_str = malloc (top + 1);
- if (new_str == NULL)
- nonoption_flags_len = nonoption_flags_max_len = 0;
- else
- {
- memset (__mempcpy (new_str, __getopt_nonoption_flags,
- nonoption_flags_max_len),
- '\0', top + 1 - nonoption_flags_max_len);
- nonoption_flags_max_len = top + 1;
- __getopt_nonoption_flags = new_str;
- }
- }
-#endif
-
- while (top > middle && middle > bottom)
- {
- if (top - middle > middle - bottom)
- {
- /* Bottom segment is the short one. */
- int len = middle - bottom;
- register int i;
-
- /* Swap it with the top part of the top segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[top - (middle - bottom) + i];
- argv[top - (middle - bottom) + i] = tem;
- SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
- }
- /* Exclude the moved bottom segment from further swapping. */
- top -= len;
- }
- else
- {
- /* Top segment is the short one. */
- int len = top - middle;
- register int i;
-
- /* Swap it with the bottom part of the bottom segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[middle + i];
- argv[middle + i] = tem;
- SWAP_FLAGS (bottom + i, middle + i);
- }
- /* Exclude the moved top segment from further swapping. */
- bottom += len;
- }
- }
-
- /* Update records for the slots the non-options now occupy. */
-
- first_nonopt += (share__optind - last_nonopt);
- last_nonopt = share__optind;
-}
-
-/* Initialize the internal data when the first call is made. */
-
-#if defined __STDC__ && __STDC__
-static const char *share___getopt_initialize (int, char *const *, const char *);
-#endif
-static const char *
-share___getopt_initialize (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
-{
- /* Start processing options with ARGV-element 1 (since ARGV-element 0
- is the program name); the sequence of previously skipped
- non-option ARGV-elements is empty. */
-
- first_nonopt = last_nonopt = share__optind;
-
- nextchar = NULL;
-
- posixly_correct = getenv ("POSIXLY_CORRECT");
-
- /* Determine how to handle the ordering of options and nonoptions. */
-
- if (optstring[0] == '-')
- {
- ordering = RETURN_IN_ORDER;
- ++optstring;
- }
- else if (optstring[0] == '+')
- {
- ordering = REQUIRE_ORDER;
- ++optstring;
- }
- else if (posixly_correct != NULL)
- ordering = REQUIRE_ORDER;
- else
- ordering = PERMUTE;
-
-#ifdef _LIBC
- if (posixly_correct == NULL
- && argc == original_argc && argv == original_argv)
- {
- if (nonoption_flags_max_len == 0)
- {
- if (__getopt_nonoption_flags == NULL
- || __getopt_nonoption_flags[0] == '\0')
- nonoption_flags_max_len = -1;
- else
- {
- const char *orig_str = __getopt_nonoption_flags;
- int len = nonoption_flags_max_len = strlen (orig_str);
- if (nonoption_flags_max_len < argc)
- nonoption_flags_max_len = argc;
- __getopt_nonoption_flags =
- malloc (nonoption_flags_max_len);
- if (__getopt_nonoption_flags == NULL)
- nonoption_flags_max_len = -1;
- else
- memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
- '\0', nonoption_flags_max_len - len);
- }
- }
- nonoption_flags_len = nonoption_flags_max_len;
- }
- else
- nonoption_flags_len = 0;
-#else
- (void)argc, (void)argv;
-#endif
-
- return optstring;
-}
-\f
-/* Scan elements of ARGV (whose length is ARGC) for option characters
- given in OPTSTRING.
-
- If an element of ARGV starts with '-', and is not exactly "-" or "--",
- then it is an option element. The characters of this element
- (aside from the initial '-') are option characters. If `share__getopt'
- is called repeatedly, it returns successively each of the option characters
- from each of the option elements.
-
- If `share__getopt' finds another option character, it returns that character,
- updating `share__optind' and `nextchar' so that the next call to `share__getopt' can
- resume the scan with the following option character or ARGV-element.
-
- If there are no more option characters, `share__getopt' returns -1.
- Then `share__optind' is the index in ARGV of the first ARGV-element
- that is not an option. (The ARGV-elements have been permuted
- so that those that are not options now come last.)
-
- OPTSTRING is a string containing the legitimate option characters.
- If an option character is seen that is not listed in OPTSTRING,
- return '?' after printing an error message. If you set `share__opterr' to
- zero, the error message is suppressed but we still return '?'.
-
- If a char in OPTSTRING is followed by a colon, that means it wants an arg,
- so the following text in the same ARGV-element, or the text of the following
- ARGV-element, is returned in `share__optarg'. Two colons mean an option that
- wants an optional arg; if there is text in the current ARGV-element,
- it is returned in `share__optarg', otherwise `share__optarg' is set to zero.
-
- If OPTSTRING starts with `-' or `+', it requests different methods of
- handling the non-option ARGV-elements.
- See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
-
- Long-named options begin with `--' instead of `-'.
- Their names may be abbreviated as long as the abbreviation is unique
- or is an exact match for some defined option. If they have an
- argument, it follows the option name in the same ARGV-element, separated
- from the option name by a `=', or else the in next ARGV-element.
- When `share__getopt' finds a long-named option, it returns 0 if that option's
- `flag' field is nonzero, the value of the option's `val' field
- if the `flag' field is zero.
-
- The elements of ARGV aren't really const, because we permute them.
- But we pretend they're const in the prototype to be compatible
- with other systems.
-
- LONGOPTS is a vector of `struct share__option' terminated by an
- element containing a name which is zero.
-
- LONGIND returns the index in LONGOPT of the long-named option found.
- It is only valid when a long-named option has been found by the most
- recent call.
-
- If LONG_ONLY is nonzero, '-' as well as '--' can introduce
- long-named options. */
-
-int
-share___getopt_internal (argc, argv, optstring, longopts, longind, long_only)
- int argc;
- char *const *argv;
- const char *optstring;
- const struct share__option *longopts;
- int *longind;
- int long_only;
-{
- share__optarg = NULL;
-
- if (share__optind == 0 || !share____getopt_initialized)
- {
- if (share__optind == 0)
- share__optind = 1; /* Don't scan ARGV[0], the program name. */
- optstring = share___getopt_initialize (argc, argv, optstring);
- share____getopt_initialized = 1;
- }
-
- /* Test whether ARGV[share__optind] points to a non-option argument.
- Either it does not have option syntax, or there is an environment flag
- from the shell indicating it is not an option. The later information
- is only used when the used in the GNU libc. */
-#ifdef _LIBC
-# define NONOPTION_P (argv[share__optind][0] != '-' || argv[share__optind][1] == '\0' \
- || (share__optind < nonoption_flags_len \
- && __getopt_nonoption_flags[share__optind] == '1'))
-#else
-# define NONOPTION_P (argv[share__optind][0] != '-' || argv[share__optind][1] == '\0')
-#endif
-
- if (nextchar == NULL || *nextchar == '\0')
- {
- /* Advance to the next ARGV-element. */
-
- /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
- moved back by the user (who may also have changed the arguments). */
- if (last_nonopt > share__optind)
- last_nonopt = share__optind;
- if (first_nonopt > share__optind)
- first_nonopt = share__optind;
-
- if (ordering == PERMUTE)
- {
- /* If we have just processed some options following some non-options,
- exchange them so that the options come first. */
-
- if (first_nonopt != last_nonopt && last_nonopt != share__optind)
- exchange ((char **) argv);
- else if (last_nonopt != share__optind)
- first_nonopt = share__optind;
-
- /* Skip any additional non-options
- and extend the range of non-options previously skipped. */
-
- while (share__optind < argc && NONOPTION_P)
- share__optind++;
- last_nonopt = share__optind;
- }
-
- /* The special ARGV-element `--' means premature end of options.
- Skip it like a null option,
- then exchange with previous non-options as if it were an option,
- then skip everything else like a non-option. */
-
- if (share__optind != argc && !strcmp (argv[share__optind], "--"))
- {
- share__optind++;
-
- if (first_nonopt != last_nonopt && last_nonopt != share__optind)
- exchange ((char **) argv);
- else if (first_nonopt == last_nonopt)
- first_nonopt = share__optind;
- last_nonopt = argc;
-
- share__optind = argc;
- }
-
- /* If we have done all the ARGV-elements, stop the scan
- and back over any non-options that we skipped and permuted. */
-
- if (share__optind == argc)
- {
- /* Set the next-arg-index to point at the non-options
- that we previously skipped, so the caller will digest them. */
- if (first_nonopt != last_nonopt)
- share__optind = first_nonopt;
- return -1;
- }
-
- /* If we have come to a non-option and did not permute it,
- either stop the scan or describe it to the caller and pass it by. */
-
- if (NONOPTION_P)
- {
- if (ordering == REQUIRE_ORDER)
- return -1;
- share__optarg = argv[share__optind++];
- return 1;
- }
-
- /* We have found another option-ARGV-element.
- Skip the initial punctuation. */
-
- nextchar = (argv[share__optind] + 1
- + (longopts != NULL && argv[share__optind][1] == '-'));
- }
-
- /* Decode the current option-ARGV-element. */
-
- /* Check whether the ARGV-element is a long option.
-
- If long_only and the ARGV-element has the form "-f", where f is
- a valid short option, don't consider it an abbreviated form of
- a long option that starts with f. Otherwise there would be no
- way to give the -f short option.
-
- On the other hand, if there's a long option "fubar" and
- the ARGV-element is "-fu", do consider that an abbreviation of
- the long option, just like "--fu", and not "-f" with arg "u".
-
- This distinction seems to be the most useful approach. */
-
- if (longopts != NULL
- && (argv[share__optind][1] == '-'
- || (long_only && (argv[share__optind][2] || !my_index (optstring, argv[share__optind][1])))))
- {
- char *nameend;
- const struct share__option *p;
- const struct share__option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = -1;
- int option_index;
-
- for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar)
- == (unsigned int) strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else
- /* Second or later nonexact match found. */
- ambig = 1;
- }
-
- if (ambig && !exact)
- {
- if (share__opterr)
- fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
- argv[0], argv[share__optind]);
- nextchar += strlen (nextchar);
- share__optind++;
- share__optopt = 0;
- return '?';
- }
-
- if (pfound != NULL)
- {
- option_index = indfound;
- share__optind++;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- share__optarg = nameend + 1;
- else
- {
- if (share__opterr)
- {
- if (argv[share__optind - 1][1] == '-')
- /* --option */
- fprintf (stderr,
- _("%s: option `--%s' doesn't allow an argument\n"),
- argv[0], pfound->name);
- else
- /* +option or -option */
- fprintf (stderr,
- _("%s: option `%c%s' doesn't allow an argument\n"),
- argv[0], argv[share__optind - 1][0], pfound->name);
- }
-
- nextchar += strlen (nextchar);
-
- share__optopt = pfound->val;
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (share__optind < argc)
- share__optarg = argv[share__optind++];
- else
- {
- if (share__opterr)
- fprintf (stderr,
- _("%s: option `%s' requires an argument\n"),
- argv[0], argv[share__optind - 1]);
- nextchar += strlen (nextchar);
- share__optopt = pfound->val;
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
-
- /* Can't find it as a long option. If this is not share__getopt_long_only,
- or the option starts with '--' or is not a valid short
- option, then it's an error.
- Otherwise interpret it as a short option. */
- if (!long_only || argv[share__optind][1] == '-'
- || my_index (optstring, *nextchar) == NULL)
- {
- if (share__opterr)
- {
- if (argv[share__optind][1] == '-')
- /* --option */
- fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
- argv[0], nextchar);
- else
- /* +option or -option */
- fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
- argv[0], argv[share__optind][0], nextchar);
- }
- nextchar = (char *) "";
- share__optind++;
- share__optopt = 0;
- return '?';
- }
- }
-
- /* Look at and handle the next short option-character. */
-
- {
- char c = *nextchar++;
- char *temp = my_index (optstring, c);
-
- /* Increment `share__optind' when we start to process its last character. */
- if (*nextchar == '\0')
- ++share__optind;
-
- if (temp == NULL || c == ':')
- {
- if (share__opterr)
- {
- if (posixly_correct)
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, _("%s: illegal option -- %c\n"),
- argv[0], c);
- else
- fprintf (stderr, _("%s: invalid option -- %c\n"),
- argv[0], c);
- }
- share__optopt = c;
- return '?';
- }
- /* Convenience. Treat POSIX -W foo same as long option --foo */
- if (temp[0] == 'W' && temp[1] == ';')
- {
- char *nameend;
- const struct share__option *p;
- const struct share__option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = 0;
- int option_index;
-
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- share__optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- share__optind++;
- }
- else if (share__optind == argc)
- {
- if (share__opterr)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, _("%s: option requires an argument -- %c\n"),
- argv[0], c);
- }
- share__optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- return c;
- }
- else
- /* We already incremented `share__optind' once;
- increment it again when taking next ARGV-elt as argument. */
- share__optarg = argv[share__optind++];
-
- /* share__optarg is now the argument, see if it's in the
- table of longopts. */
-
- for (nextchar = nameend = share__optarg; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar) == strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else
- /* Second or later nonexact match found. */
- ambig = 1;
- }
- if (ambig && !exact)
- {
- if (share__opterr)
- fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
- argv[0], argv[share__optind]);
- nextchar += strlen (nextchar);
- share__optind++;
- return '?';
- }
- if (pfound != NULL)
- {
- option_index = indfound;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- share__optarg = nameend + 1;
- else
- {
- if (share__opterr)
- fprintf (stderr, _("\
-%s: option `-W %s' doesn't allow an argument\n"),
- argv[0], pfound->name);
-
- nextchar += strlen (nextchar);
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (share__optind < argc)
- share__optarg = argv[share__optind++];
- else
- {
- if (share__opterr)
- fprintf (stderr,
- _("%s: option `%s' requires an argument\n"),
- argv[0], argv[share__optind - 1]);
- nextchar += strlen (nextchar);
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
- nextchar = NULL;
- return 'W'; /* Let the application handle it. */
- }
- if (temp[1] == ':')
- {
- if (temp[2] == ':')
- {
- /* This is an option that accepts an argument optionally. */
- if (*nextchar != '\0')
- {
- share__optarg = nextchar;
- share__optind++;
- }
- else
- share__optarg = NULL;
- nextchar = NULL;
- }
- else
- {
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- share__optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- share__optind++;
- }
- else if (share__optind == argc)
- {
- if (share__opterr)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr,
- _("%s: option requires an argument -- %c\n"),
- argv[0], c);
- }
- share__optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- }
- else
- /* We already incremented `share__optind' once;
- increment it again when taking next ARGV-elt as argument. */
- share__optarg = argv[share__optind++];
- nextchar = NULL;
- }
- }
- return c;
- }
-}
-
-int
-share__getopt (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
-{
- return share___getopt_internal (argc, argv, optstring,
- (const struct share__option *) 0,
- (int *) 0,
- 0);
-}
-
-#endif /* Not ELIDE_CODE. */
-\f
-#ifdef TEST
-
-/* Compile with -DTEST to make an executable for use in testing
- the above definition of `share__getopt'. */
-
-int
-main (argc, argv)
- int argc;
- char **argv;
-{
- int c;
- int digit_optind = 0;
-
- while (1)
- {
- int this_option_optind = share__optind ? share__optind : 1;
-
- c = share__getopt (argc, argv, "abc:d:0123456789");
- if (c == -1)
- break;
-
- switch (c)
- {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- if (digit_optind != 0 && digit_optind != this_option_optind)
- printf ("digits occur in two different argv-elements.\n");
- digit_optind = this_option_optind;
- printf ("option %c\n", c);
- break;
-
- case 'a':
- printf ("option a\n");
- break;
-
- case 'b':
- printf ("option b\n");
- break;
-
- case 'c':
- printf ("option c with value `%s'\n", share__optarg);
- break;
-
- case '?':
- break;
-
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
- }
- }
-
- if (share__optind < argc)
- {
- printf ("non-option ARGV-elements: ");
- while (share__optind < argc)
- printf ("%s ", argv[share__optind++]);
- printf ("\n");
- }
-
- exit (0);
-}
-
-#endif /* TEST */
+++ /dev/null
-/*
- NOTE:
- I cannot get the vanilla getopt code to work (i.e. compile only what
- is needed and not duplicate symbols found in the standard library)
- on all the platforms that FLAC supports. In particular the gating
- of code with the ELIDE_CODE #define is not accurate enough on systems
- that are POSIX but not glibc. If someone has a patch that works on
- GNU/Linux, Darwin, AND Solaris please submit it on the project page:
- https://sourceforge.net/p/flac/patches/
-
- In the meantime I have munged the global symbols and removed gates
- around code, while at the same time trying to touch the original as
- little as possible.
-*/
-/* getopt_long and getopt_long_only entry points for GNU getopt.
- Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
- Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-\f
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "share/getopt.h"
-/*[JEC] was:#include "getopt.h"*/
-
-#if !defined __STDC__ || !__STDC__
-/* This is a separate conditional since some stdc systems
- reject `defined (const)'. */
-#ifndef const
-#define const
-#endif
-#endif
-
-#include <stdio.h>
-
-/* Comment out all this code if we are using the GNU C Library, and are not
- actually compiling the library itself. This code is part of the GNU C
- Library, but also included in many other GNU distributions. Compiling
- and linking in this code is a waste when using the GNU C library
- (especially if it is a shared library). Rather than having every GNU
- program understand `configure --with-gnu-libc' and omit the object files,
- it is simpler to just do this in the source for each such file. */
-
-#define GETOPT_INTERFACE_VERSION 2
-#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
-#include <gnu-versions.h>
-#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
-#define ELIDE_CODE
-#endif
-#endif
-
-#if 1
-/*[JEC] was:#ifndef ELIDE_CODE*/
-
-
-/* This needs to come after some library #include
- to get __GNU_LIBRARY__ defined. */
-#ifdef __GNU_LIBRARY__
-#include <stdlib.h>
-#endif
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-int
-share__getopt_long (argc, argv, options, long_options, opt_index)
- int argc;
- char *const *argv;
- const char *options;
- const struct share__option *long_options;
- int *opt_index;
-{
- return share___getopt_internal (argc, argv, options, long_options, opt_index, 0);
-}
-
-/* Like share__getopt_long, but '-' as well as '--' can indicate a long option.
- If an option that starts with '-' (not '--') doesn't match a long option,
- but does match a short option, it is parsed as a short option
- instead. */
-
-int
-share__getopt_long_only (argc, argv, options, long_options, opt_index)
- int argc;
- char *const *argv;
- const char *options;
- const struct share__option *long_options;
- int *opt_index;
-{
- return share___getopt_internal (argc, argv, options, long_options, opt_index, 1);
-}
-
-
-#endif /* Not ELIDE_CODE. */
-\f
-#ifdef TEST
-
-#include <stdio.h>
-
-int
-main (argc, argv)
- int argc;
- char **argv;
-{
- int c;
- int digit_optind = 0;
-
- while (1)
- {
- int this_option_optind = share__optind ? share__optind : 1;
- int option_index = 0;
- static struct share__option long_options[] =
- {
- {"add", 1, 0, 0},
- {"append", 0, 0, 0},
- {"delete", 1, 0, 0},
- {"verbose", 0, 0, 0},
- {"create", 0, 0, 0},
- {"file", 1, 0, 0},
- {0, 0, 0, 0}
- };
-
- c = share__getopt_long (argc, argv, "abc:d:0123456789",
- long_options, &option_index);
- if (c == -1)
- break;
-
- switch (c)
- {
- case 0:
- printf ("option %s", long_options[option_index].name);
- if (share__optarg)
- printf (" with arg %s", share__optarg);
- printf ("\n");
- break;
-
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- if (digit_optind != 0 && digit_optind != this_option_optind)
- printf ("digits occur in two different argv-elements.\n");
- digit_optind = this_option_optind;
- printf ("option %c\n", c);
- break;
-
- case 'a':
- printf ("option a\n");
- break;
-
- case 'b':
- printf ("option b\n");
- break;
-
- case 'c':
- printf ("option c with value `%s'\n", share__optarg);
- break;
-
- case 'd':
- printf ("option d with value `%s'\n", share__optarg);
- break;
-
- case '?':
- break;
-
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
- }
- }
-
- if (share__optind < argc)
- {
- printf ("non-option ARGV-elements: ");
- while (share__optind < argc)
- printf ("%s ", argv[share__optind++]);
- printf ("\n");
- }
-
- exit (0);
-}
-
-#endif /* TEST */
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8.00"\r
- Name="getopt_static"\r
- ProjectGUID="{4cefbc80-c215-11db-8314-0800200c9a66}"\r
- RootNamespace="getopt_static"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;FLAC__NO_DLL;DEBUG"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- EnableIntrinsicFunctions="true"\r
- FavorSizeOrSpeed="1"\r
- OmitFramePointers="true"\r
- WholeProgramOptimization="true"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_LIB;FLAC__NO_DLL"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Header Files"\r
- Filter="h;hpp;hxx;hm;inl;inc;xsd"\r
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"\r
- >\r
- </Filter>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"\r
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
- RelativePath=".\getopt.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\getopt1.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="Public Header Files"\r
- >\r
- <File\r
- RelativePath="..\..\..\include\share\getopt.h"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{4cefbc80-c215-11db-8314-0800200c9a66}</ProjectGuid>\r
- <RootNamespace>getopt_static</RootNamespace>\r
- <Keyword>Win32Proj</Keyword>\r
- </PropertyGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">\r
- <ConfigurationType>StaticLibrary</ConfigurationType>\r
- <WholeProgramOptimization>true</WholeProgramOptimization>\r
- </PropertyGroup>\r
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">\r
- <ConfigurationType>StaticLibrary</ConfigurationType>\r
- <WholeProgramOptimization>true</WholeProgramOptimization>\r
- </PropertyGroup>\r
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">\r
- <ConfigurationType>StaticLibrary</ConfigurationType>\r
- </PropertyGroup>\r
- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">\r
- <ConfigurationType>StaticLibrary</ConfigurationType>\r
- </PropertyGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <ImportGroup Label="ExtensionSettings">\r
- </ImportGroup>\r
- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">\r
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
- </ImportGroup>\r
- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">\r
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
- </ImportGroup>\r
- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">\r
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
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- <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">\r
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- </ImportGroup>\r
- <PropertyGroup Label="UserMacros" />\r
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- <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">\r
- <OutDir>$(SolutionDir)objs\$(Configuration)\lib\</OutDir>\r
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- <AdditionalIncludeDirectories>.\include;..\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
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- <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>\r
- <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>\r
- <WarningLevel>Level3</WarningLevel>\r
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>\r
- <CompileAs>Default</CompileAs>\r
- <DisableSpecificWarnings>4267;4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>\r
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- <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>\r
- <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>\r
- <WarningLevel>Level3</WarningLevel>\r
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>\r
- <CompileAs>Default</CompileAs>\r
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- <WholeProgramOptimization>true</WholeProgramOptimization>\r
- <AdditionalIncludeDirectories>.\include;..\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
- <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;FLAC__NO_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- <RuntimeLibrary>MultiThreaded</RuntimeLibrary>\r
- <BufferSecurityCheck>false</BufferSecurityCheck>\r
- <WarningLevel>Level3</WarningLevel>\r
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>\r
- <CompileAs>Default</CompileAs>\r
- <DisableSpecificWarnings>4267;4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>\r
- </ClCompile>\r
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- <ClCompile>\r
- <IntrinsicFunctions>true</IntrinsicFunctions>\r
- <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>\r
- <OmitFramePointers>true</OmitFramePointers>\r
- <WholeProgramOptimization>true</WholeProgramOptimization>\r
- <AdditionalIncludeDirectories>.\include;..\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
- <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;FLAC__NO_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- <RuntimeLibrary>MultiThreaded</RuntimeLibrary>\r
- <BufferSecurityCheck>false</BufferSecurityCheck>\r
- <WarningLevel>Level3</WarningLevel>\r
- <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>\r
- <CompileAs>Default</CompileAs>\r
- <DisableSpecificWarnings>4267;4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>\r
- </ClCompile>\r
- </ItemDefinitionGroup>\r
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- <ClCompile Include="getopt.c" />\r
- <ClCompile Include="getopt1.c" />\r
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-</Project>
\ No newline at end of file
+++ /dev/null
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup>\r
- <Filter Include="Header Files">\r
- <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>\r
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- <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>\r
- </Filter>\r
- <Filter Include="Public Header Files">\r
- <UniqueIdentifier>{98dc8c56-677d-4f5b-9c7e-031634c635f0}</UniqueIdentifier>\r
- </Filter>\r
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- <ClCompile Include="getopt.c">\r
- <Filter>Source Files</Filter>\r
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- <Filter>Source Files</Filter>\r
- </ClCompile>\r
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- <ClInclude Include="..\..\..\include\share\getopt.h">\r
- <Filter>Public Header Files</Filter>\r
- </ClInclude>\r
- </ItemGroup>\r
-</Project>
\ No newline at end of file
+++ /dev/null
-# grabbag - Convenience lib for various routines common to several tools
-
-#
-# GNU makefile
-#
-
-topdir = ../../..
-libdir = $(topdir)/objs/$(BUILD)/lib
-
-ifeq ($(OS),Darwin)
- EXPLICIT_LIBS = $(libdir)/libFLAC.a $(libdir)/libreplaygain_analysis.a $(OGG_EXPLICIT_LIBS) -lm
-else
- LIBS = -lFLAC -lreplaygain_analysis $(OGG_LIBS) -lm
-endif
-
-LIB_NAME = libgrabbag
-INCLUDES = -I$(topdir)/include
-
-SRCS_C = \
- alloc.c \
- cuesheet.c \
- file.c \
- picture.c \
- replaygain.c \
- seektable.c \
- snprintf.c
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/* alloc - Convenience routines for safely allocating memory
- * Copyright (C) 2007-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdlib.h>
-
-#include "share/alloc.h"
-
-void *safe_malloc_mul_2op_(size_t size1, size_t size2)
-{
- if(!size1 || !size2)
- return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
- if(size1 > SIZE_MAX / size2)
- return 0;
- return malloc(size1*size2);
-}
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "FLAC/assert.h"
-#include "share/compat.h"
-#include "share/grabbag.h"
-#include "share/safe_str.h"
-
-unsigned grabbag__cuesheet_msf_to_frame(unsigned minutes, unsigned seconds, unsigned frames)
-{
- return ((minutes * 60) + seconds) * 75 + frames;
-}
-
-void grabbag__cuesheet_frame_to_msf(unsigned frame, unsigned *minutes, unsigned *seconds, unsigned *frames)
-{
- *frames = frame % 75;
- frame /= 75;
- *seconds = frame % 60;
- frame /= 60;
- *minutes = frame;
-}
-
-/* since we only care about values >= 0 or error, returns < 0 for any illegal string, else value */
-static int local__parse_int_(const char *s)
-{
- int ret = 0;
- char c;
-
- if(*s == '\0')
- return -1;
-
- while('\0' != (c = *s++))
- if(c >= '0' && c <= '9')
- ret = ret * 10 + (c - '0');
- else
- return -1;
-
- return ret;
-}
-
-/* since we only care about values >= 0 or error, returns < 0 for any illegal string, else value */
-static FLAC__int64 local__parse_int64_(const char *s)
-{
- FLAC__int64 ret = 0;
- char c;
-
- if(*s == '\0')
- return -1;
-
- while('\0' != (c = *s++))
- if(c >= '0' && c <= '9')
- ret = ret * 10 + (c - '0');
- else
- return -1;
-
- return ret;
-}
-
-/* accept minute:second:frame syntax of '[0-9]+:[0-9][0-9]?:[0-9][0-9]?', but max second of 59 and max frame of 74, e.g. 0:0:0, 123:45:67
- * return sample number or <0 for error
- * WATCHOUT: if sample rate is not evenly divisible by 75, the resulting sample number will be approximate
- */
-static FLAC__int64 local__parse_msf_(const char *s, unsigned sample_rate)
-{
- FLAC__int64 ret, field;
- char c;
-
- c = *s++;
- if(c >= '0' && c <= '9')
- field = (c - '0');
- else
- return -1;
- while(':' != (c = *s++)) {
- if(c >= '0' && c <= '9')
- field = field * 10 + (c - '0');
- else
- return -1;
- }
-
- ret = field * 60 * sample_rate;
-
- c = *s++;
- if(c >= '0' && c <= '9')
- field = (c - '0');
- else
- return -1;
- if(':' != (c = *s++)) {
- if(c >= '0' && c <= '9') {
- field = field * 10 + (c - '0');
- c = *s++;
- if(c != ':')
- return -1;
- }
- else
- return -1;
- }
-
- if(field >= 60)
- return -1;
-
- ret += field * sample_rate;
-
- c = *s++;
- if(c >= '0' && c <= '9')
- field = (c - '0');
- else
- return -1;
- if('\0' != (c = *s++)) {
- if(c >= '0' && c <= '9') {
- field = field * 10 + (c - '0');
- c = *s++;
- }
- else
- return -1;
- }
-
- if(c != '\0')
- return -1;
-
- if(field >= 75)
- return -1;
-
- ret += field * (sample_rate / 75);
-
- return ret;
-}
-
-/* accept minute:second syntax of '[0-9]+:[0-9][0-9]?{,.[0-9]+}', but second < 60, e.g. 0:0.0, 3:5, 15:31.731
- * return sample number or <0 for error
- * WATCHOUT: depending on the sample rate, the resulting sample number may be approximate with fractional seconds
- */
-static FLAC__int64 local__parse_ms_(const char *s, unsigned sample_rate)
-{
- FLAC__int64 ret, field;
- double x;
- char c, *end;
-
- c = *s++;
- if(c >= '0' && c <= '9')
- field = (c - '0');
- else
- return -1;
- while(':' != (c = *s++)) {
- if(c >= '0' && c <= '9')
- field = field * 10 + (c - '0');
- else
- return -1;
- }
-
- ret = field * 60 * sample_rate;
-
- s++; /* skip the ':' */
- if(strspn(s, "0123456789.") != strlen(s))
- return -1;
- x = strtod(s, &end);
- if(*end || end == s)
- return -1;
- if(x < 0.0 || x >= 60.0)
- return -1;
-
- ret += (FLAC__int64)(x * sample_rate);
-
- return ret;
-}
-
-static char *local__get_field_(char **s, FLAC__bool allow_quotes)
-{
- FLAC__bool has_quote = false;
- char *p;
-
- FLAC__ASSERT(0 != s);
-
- if(0 == *s)
- return 0;
-
- /* skip leading whitespace */
- while(**s && 0 != strchr(" \t\r\n", **s))
- (*s)++;
-
- if(**s == 0) {
- *s = 0;
- return 0;
- }
-
- if(allow_quotes && (**s == '"')) {
- has_quote = true;
- (*s)++;
- if(**s == 0) {
- *s = 0;
- return 0;
- }
- }
-
- p = *s;
-
- if(has_quote) {
- *s = strchr(*s, '\"');
- /* if there is no matching end quote, it's an error */
- if(0 == *s)
- p = *s = 0;
- else {
- **s = '\0';
- (*s)++;
- }
- }
- else {
- while(**s && 0 == strchr(" \t\r\n", **s))
- (*s)++;
- if(**s) {
- **s = '\0';
- (*s)++;
- }
- else
- *s = 0;
- }
-
- return p;
-}
-
-static FLAC__bool local__cuesheet_parse_(FILE *file, const char **error_message, unsigned *last_line_read, FLAC__StreamMetadata *cuesheet, unsigned sample_rate, FLAC__bool is_cdda, FLAC__uint64 lead_out_offset)
-{
- char buffer[4096], *line, *field;
- unsigned forced_leadout_track_num = 0;
- FLAC__uint64 forced_leadout_track_offset = 0;
- int in_track_num = -1, in_index_num = -1;
- FLAC__bool disc_has_catalog = false, track_has_flags = false, track_has_isrc = false, has_forced_leadout = false;
- FLAC__StreamMetadata_CueSheet *cs = &cuesheet->data.cue_sheet;
-
- FLAC__ASSERT(!is_cdda || sample_rate == 44100);
- /* double protection */
- if(is_cdda && sample_rate != 44100) {
- *error_message = "CD-DA cuesheet only allowed with 44.1kHz sample rate";
- return false;
- }
-
- cs->lead_in = is_cdda? 2 * 44100 /* The default lead-in size for CD-DA */ : 0;
- cs->is_cd = is_cdda;
-
- while(0 != fgets(buffer, sizeof(buffer), file)) {
- (*last_line_read)++;
- line = buffer;
-
- {
- size_t linelen = strlen(line);
- if((linelen == sizeof(buffer)-1) && line[linelen-1] != '\n') {
- *error_message = "line too long";
- return false;
- }
- }
-
- if(0 != (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- if(0 == FLAC__STRCASECMP(field, "CATALOG")) {
- if(disc_has_catalog) {
- *error_message = "found multiple CATALOG commands";
- return false;
- }
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/true))) {
- *error_message = "CATALOG is missing catalog number";
- return false;
- }
- if(strlen(field) >= sizeof(cs->media_catalog_number)) {
- *error_message = "CATALOG number is too long";
- return false;
- }
- if(is_cdda && (strlen(field) != 13 || strspn(field, "0123456789") != 13)) {
- *error_message = "CD-DA CATALOG number must be 13 decimal digits";
- return false;
- }
- safe_strncpy(cs->media_catalog_number, field, sizeof(cs->media_catalog_number));
- disc_has_catalog = true;
- }
- else if(0 == FLAC__STRCASECMP(field, "FLAGS")) {
- if(track_has_flags) {
- *error_message = "found multiple FLAGS commands";
- return false;
- }
- if(in_track_num < 0 || in_index_num >= 0) {
- *error_message = "FLAGS command must come after TRACK but before INDEX";
- return false;
- }
- while(0 != (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- if(0 == FLAC__STRCASECMP(field, "PRE"))
- cs->tracks[cs->num_tracks-1].pre_emphasis = 1;
- }
- track_has_flags = true;
- }
- else if(0 == FLAC__STRCASECMP(field, "INDEX")) {
- FLAC__int64 xx;
- FLAC__StreamMetadata_CueSheet_Track *track = &cs->tracks[cs->num_tracks-1];
- if(in_track_num < 0) {
- *error_message = "found INDEX before any TRACK";
- return false;
- }
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "INDEX is missing index number";
- return false;
- }
- in_index_num = local__parse_int_(field);
- if(in_index_num < 0) {
- *error_message = "INDEX has invalid index number";
- return false;
- }
- FLAC__ASSERT(cs->num_tracks > 0);
- if(track->num_indices == 0) {
- /* it's the first index point of the track */
- if(in_index_num > 1) {
- *error_message = "first INDEX number of a TRACK must be 0 or 1";
- return false;
- }
- }
- else {
- if(in_index_num != track->indices[track->num_indices-1].number + 1) {
- *error_message = "INDEX numbers must be sequential";
- return false;
- }
- }
- if(is_cdda && in_index_num > 99) {
- *error_message = "CD-DA INDEX number must be between 0 and 99, inclusive";
- return false;
- }
- /*@@@ search for duplicate track number? */
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "INDEX is missing an offset after the index number";
- return false;
- }
- /* first parse as minute:second:frame format */
- xx = local__parse_msf_(field, sample_rate);
- if(xx < 0) {
- /* CD-DA must use only MM:SS:FF format */
- if(is_cdda) {
- *error_message = "illegal INDEX offset (not of the form MM:SS:FF)";
- return false;
- }
- /* as an extension for non-CD-DA we allow MM:SS.SS or raw sample number */
- xx = local__parse_ms_(field, sample_rate);
- if(xx < 0) {
- xx = local__parse_int64_(field);
- if(xx < 0) {
- *error_message = "illegal INDEX offset";
- return false;
- }
- }
- }
- else if(sample_rate % 75 && xx) {
- /* only sample zero is exact */
- *error_message = "illegal INDEX offset (MM:SS:FF form not allowed if sample rate is not a multiple of 75)";
- return false;
- }
- if(is_cdda && cs->num_tracks == 1 && cs->tracks[0].num_indices == 0 && xx != 0) {
- *error_message = "first INDEX of first TRACK must have an offset of 00:00:00";
- return false;
- }
- if(is_cdda && track->num_indices > 0 && (FLAC__uint64)xx <= track->indices[track->num_indices-1].offset) {
- *error_message = "CD-DA INDEX offsets must increase in time";
- return false;
- }
- /* fill in track offset if it's the first index of the track */
- if(track->num_indices == 0)
- track->offset = (FLAC__uint64)xx;
- if(is_cdda && cs->num_tracks > 1) {
- const FLAC__StreamMetadata_CueSheet_Track *prev = &cs->tracks[cs->num_tracks-2];
- if((FLAC__uint64)xx <= prev->offset + prev->indices[prev->num_indices-1].offset) {
- *error_message = "CD-DA INDEX offsets must increase in time";
- return false;
- }
- }
- if(!FLAC__metadata_object_cuesheet_track_insert_blank_index(cuesheet, cs->num_tracks-1, track->num_indices)) {
- *error_message = "memory allocation error";
- return false;
- }
- track->indices[track->num_indices-1].offset = (FLAC__uint64)xx - track->offset;
- track->indices[track->num_indices-1].number = in_index_num;
- }
- else if(0 == FLAC__STRCASECMP(field, "ISRC")) {
- char *l, *r;
- if(track_has_isrc) {
- *error_message = "found multiple ISRC commands";
- return false;
- }
- if(in_track_num < 0 || in_index_num >= 0) {
- *error_message = "ISRC command must come after TRACK but before INDEX";
- return false;
- }
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/true))) {
- *error_message = "ISRC is missing ISRC number";
- return false;
- }
- /* strip out dashes */
- for(l = r = field; *r; r++) {
- if(*r != '-')
- *l++ = *r;
- }
- *l = '\0';
- if(strlen(field) != 12 || strspn(field, "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789") < 5 || strspn(field+5, "1234567890") != 7) {
- *error_message = "invalid ISRC number";
- return false;
- }
- safe_strncpy(cs->tracks[cs->num_tracks-1].isrc, field, sizeof(cs->tracks[cs->num_tracks-1].isrc));
- track_has_isrc = true;
- }
- else if(0 == FLAC__STRCASECMP(field, "TRACK")) {
- if(cs->num_tracks > 0) {
- const FLAC__StreamMetadata_CueSheet_Track *prev = &cs->tracks[cs->num_tracks-1];
- if(
- prev->num_indices == 0 ||
- (
- is_cdda &&
- (
- (prev->num_indices == 1 && prev->indices[0].number != 1) ||
- (prev->num_indices == 2 && prev->indices[0].number != 1 && prev->indices[1].number != 1)
- )
- )
- ) {
- *error_message = is_cdda?
- "previous TRACK must specify at least one INDEX 01" :
- "previous TRACK must specify at least one INDEX";
- return false;
- }
- }
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "TRACK is missing track number";
- return false;
- }
- in_track_num = local__parse_int_(field);
- if(in_track_num < 0) {
- *error_message = "TRACK has invalid track number";
- return false;
- }
- if(in_track_num == 0) {
- *error_message = "TRACK number must be greater than 0";
- return false;
- }
- if(is_cdda) {
- if(in_track_num > 99) {
- *error_message = "CD-DA TRACK number must be between 1 and 99, inclusive";
- return false;
- }
- }
- else {
- if(in_track_num == 255) {
- *error_message = "TRACK number 255 is reserved for the lead-out";
- return false;
- }
- else if(in_track_num > 255) {
- *error_message = "TRACK number must be between 1 and 254, inclusive";
- return false;
- }
- }
- if(is_cdda && cs->num_tracks > 0 && in_track_num != cs->tracks[cs->num_tracks-1].number + 1) {
- *error_message = "CD-DA TRACK numbers must be sequential";
- return false;
- }
- /*@@@ search for duplicate track number? */
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "TRACK is missing a track type after the track number";
- return false;
- }
- if(!FLAC__metadata_object_cuesheet_insert_blank_track(cuesheet, cs->num_tracks)) {
- *error_message = "memory allocation error";
- return false;
- }
- cs->tracks[cs->num_tracks-1].number = in_track_num;
- cs->tracks[cs->num_tracks-1].type = (0 == FLAC__STRCASECMP(field, "AUDIO"))? 0 : 1; /*@@@ should we be more strict with the value here? */
- in_index_num = -1;
- track_has_flags = false;
- track_has_isrc = false;
- }
- else if(0 == FLAC__STRCASECMP(field, "REM")) {
- if(0 != (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- if(0 == strcmp(field, "FLAC__lead-in")) {
- FLAC__int64 xx;
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "FLAC__lead-in is missing offset";
- return false;
- }
- xx = local__parse_int64_(field);
- if(xx < 0) {
- *error_message = "illegal FLAC__lead-in offset";
- return false;
- }
- if(is_cdda && xx % 588 != 0) {
- *error_message = "illegal CD-DA FLAC__lead-in offset, must be even multiple of 588 samples";
- return false;
- }
- cs->lead_in = (FLAC__uint64)xx;
- }
- else if(0 == strcmp(field, "FLAC__lead-out")) {
- int track_num;
- FLAC__int64 offset;
- if(has_forced_leadout) {
- *error_message = "multiple FLAC__lead-out commands";
- return false;
- }
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "FLAC__lead-out is missing track number";
- return false;
- }
- track_num = local__parse_int_(field);
- if(track_num < 0) {
- *error_message = "illegal FLAC__lead-out track number";
- return false;
- }
- forced_leadout_track_num = (unsigned)track_num;
- /*@@@ search for duplicate track number? */
- if(0 == (field = local__get_field_(&line, /*allow_quotes=*/false))) {
- *error_message = "FLAC__lead-out is missing offset";
- return false;
- }
- offset = local__parse_int64_(field);
- if(offset < 0) {
- *error_message = "illegal FLAC__lead-out offset";
- return false;
- }
- forced_leadout_track_offset = (FLAC__uint64)offset;
- if(forced_leadout_track_offset != lead_out_offset) {
- *error_message = "FLAC__lead-out offset does not match end-of-stream offset";
- return false;
- }
- has_forced_leadout = true;
- }
- }
- }
- }
- }
-
- if(cs->num_tracks == 0) {
- *error_message = "there must be at least one TRACK command";
- return false;
- }
- else {
- const FLAC__StreamMetadata_CueSheet_Track *prev = &cs->tracks[cs->num_tracks-1];
- if(
- prev->num_indices == 0 ||
- (
- is_cdda &&
- (
- (prev->num_indices == 1 && prev->indices[0].number != 1) ||
- (prev->num_indices == 2 && prev->indices[0].number != 1 && prev->indices[1].number != 1)
- )
- )
- ) {
- *error_message = is_cdda?
- "previous TRACK must specify at least one INDEX 01" :
- "previous TRACK must specify at least one INDEX";
- return false;
- }
- }
-
- if(!has_forced_leadout) {
- forced_leadout_track_num = is_cdda? 170 : 255;
- forced_leadout_track_offset = lead_out_offset;
- }
- if(!FLAC__metadata_object_cuesheet_insert_blank_track(cuesheet, cs->num_tracks)) {
- *error_message = "memory allocation error";
- return false;
- }
- cs->tracks[cs->num_tracks-1].number = forced_leadout_track_num;
- cs->tracks[cs->num_tracks-1].offset = forced_leadout_track_offset;
-
- if(!feof(file)) {
- *error_message = "read error";
- return false;
- }
- return true;
-}
-
-FLAC__StreamMetadata *grabbag__cuesheet_parse(FILE *file, const char **error_message, unsigned *last_line_read, unsigned sample_rate, FLAC__bool is_cdda, FLAC__uint64 lead_out_offset)
-{
- FLAC__StreamMetadata *cuesheet;
-
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != error_message);
- FLAC__ASSERT(0 != last_line_read);
-
- *last_line_read = 0;
- cuesheet = FLAC__metadata_object_new(FLAC__METADATA_TYPE_CUESHEET);
-
- if(0 == cuesheet) {
- *error_message = "memory allocation error";
- return 0;
- }
-
- if(!local__cuesheet_parse_(file, error_message, last_line_read, cuesheet, sample_rate, is_cdda, lead_out_offset)) {
- FLAC__metadata_object_delete(cuesheet);
- return 0;
- }
-
- return cuesheet;
-}
-
-void grabbag__cuesheet_emit(FILE *file, const FLAC__StreamMetadata *cuesheet, const char *file_reference)
-{
- const FLAC__StreamMetadata_CueSheet *cs;
- unsigned track_num, index_num;
-
- FLAC__ASSERT(0 != file);
- FLAC__ASSERT(0 != cuesheet);
- FLAC__ASSERT(cuesheet->type == FLAC__METADATA_TYPE_CUESHEET);
-
- cs = &cuesheet->data.cue_sheet;
-
- if(*(cs->media_catalog_number))
- fprintf(file, "CATALOG %s\n", cs->media_catalog_number);
- fprintf(file, "FILE %s\n", file_reference);
-
- for(track_num = 0; track_num < cs->num_tracks-1; track_num++) {
- const FLAC__StreamMetadata_CueSheet_Track *track = cs->tracks + track_num;
-
- fprintf(file, " TRACK %02u %s\n", (unsigned)track->number, track->type == 0? "AUDIO" : "DATA");
-
- if(track->pre_emphasis)
- fprintf(file, " FLAGS PRE\n");
- if(*(track->isrc))
- fprintf(file, " ISRC %s\n", track->isrc);
-
- for(index_num = 0; index_num < track->num_indices; index_num++) {
- const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + index_num;
-
- fprintf(file, " INDEX %02u ", (unsigned)indx->number);
- if(cs->is_cd) {
- const unsigned logical_frame = (unsigned)((track->offset + indx->offset) / (44100 / 75));
- unsigned m, s, f;
- grabbag__cuesheet_frame_to_msf(logical_frame, &m, &s, &f);
- fprintf(file, "%02u:%02u:%02u\n", m, s, f);
- }
- else
- fprintf(file, "%" PRIu64 "\n", (track->offset + indx->offset));
- }
- }
-
- fprintf(file, "REM FLAC__lead-in %" PRIu64 "\n", cs->lead_in);
- fprintf(file, "REM FLAC__lead-out %u %" PRIu64 "\n", (unsigned)cs->tracks[track_num].number, cs->tracks[track_num].offset);
-}
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if defined _MSC_VER || defined __MINGW32__
-#include <sys/utime.h> /* for utime() */
-#include <io.h> /* for chmod(), _setmode(), unlink() */
-#include <fcntl.h> /* for _O_BINARY */
-#else
-#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
-#include <utime.h> /* for utime() */
-#endif
-#if defined __CYGWIN__ || defined __EMX__
-#include <io.h> /* for setmode(), O_BINARY */
-#include <fcntl.h> /* for _O_BINARY */
-#endif
-#include <sys/stat.h> /* for stat(), maybe chmod() */
-#if defined _WIN32 && !defined __CYGWIN__
-#else
-#include <unistd.h> /* for unlink() */
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h> /* for strrchr() */
-#if defined _WIN32 && !defined __CYGWIN__
-// for GetFileInformationByHandle() etc
-#include <windows.h>
-#include <winbase.h>
-#endif
-#include "share/grabbag.h"
-
-
-void grabbag__file_copy_metadata(const char *srcpath, const char *destpath)
-{
- struct flac_stat_s srcstat;
- struct utimbuf srctime;
-
- if(0 == flac_stat(srcpath, &srcstat)) {
- srctime.actime = srcstat.st_atime;
- srctime.modtime = srcstat.st_mtime;
- (void)flac_chmod(destpath, srcstat.st_mode);
-#if !defined _3DS
- (void)flac_utime(destpath, &srctime);
-#endif
- }
-}
-
-FLAC__off_t grabbag__file_get_filesize(const char *srcpath)
-{
- struct flac_stat_s srcstat;
-
- if(0 == flac_stat(srcpath, &srcstat))
- return srcstat.st_size;
- else
- return -1;
-}
-
-const char *grabbag__file_get_basename(const char *srcpath)
-{
- const char *p;
-
- p = strrchr(srcpath, '/');
- if(0 == p) {
- p = strrchr(srcpath, '\\');
- if(0 == p)
- return srcpath;
- }
- return ++p;
-}
-
-FLAC__bool grabbag__file_change_stats(const char *filename, FLAC__bool read_only)
-{
- struct flac_stat_s stats;
-
- if(0 == flac_stat(filename, &stats)) {
-#if !defined _MSC_VER && !defined __MINGW32__
- if(read_only) {
- stats.st_mode &= ~S_IWUSR;
- stats.st_mode &= ~S_IWGRP;
- stats.st_mode &= ~S_IWOTH;
- }
- else {
- stats.st_mode |= S_IWUSR;
- }
-#else
- if(read_only)
- stats.st_mode &= ~S_IWRITE;
- else
- stats.st_mode |= S_IWRITE;
-#endif
- if(0 != flac_chmod(filename, stats.st_mode))
- return false;
- }
- else
- return false;
-
- return true;
-}
-
-FLAC__bool grabbag__file_are_same(const char *f1, const char *f2)
-{
-#if defined _MSC_VER || defined __MINGW32__
- /* see
- * http://www.hydrogenaudio.org/forums/index.php?showtopic=49439&pid=444300&st=0
- * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/getfileinformationbyhandle.asp
- * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/by_handle_file_information_str.asp
- * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/createfile.asp
- * apparently both the files have to be open at the same time for the comparison to work
- */
- FLAC__bool same = false;
- BY_HANDLE_FILE_INFORMATION info1, info2;
- HANDLE h1, h2;
- BOOL ok = 1;
- h1 = CreateFile_utf8(f1, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
- h2 = CreateFile_utf8(f2, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
- if(h1 == INVALID_HANDLE_VALUE || h2 == INVALID_HANDLE_VALUE)
- ok = 0;
- ok &= GetFileInformationByHandle(h1, &info1);
- ok &= GetFileInformationByHandle(h2, &info2);
- if(ok)
- same =
- info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber &&
- info1.nFileIndexHigh == info2.nFileIndexHigh &&
- info1.nFileIndexLow == info2.nFileIndexLow
- ;
- if(h1 != INVALID_HANDLE_VALUE)
- CloseHandle(h1);
- if(h2 != INVALID_HANDLE_VALUE)
- CloseHandle(h2);
- return same;
-#else
- struct flac_stat_s s1, s2;
- return f1 && f2 && flac_stat(f1, &s1) == 0 && flac_stat(f2, &s2) == 0 && s1.st_ino == s2.st_ino && s1.st_dev == s2.st_dev;
-#endif
-}
-
-FLAC__bool grabbag__file_remove_file(const char *filename)
-{
- return grabbag__file_change_stats(filename, /*read_only=*/false) && 0 == flac_unlink(filename);
-}
-
-FILE *grabbag__file_get_binary_stdin(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdin), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdin), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdin), O_BINARY);
-#endif
-
- return stdin;
-}
-
-FILE *grabbag__file_get_binary_stdout(void)
-{
- /* if something breaks here it is probably due to the presence or
- * absence of an underscore before the identifiers 'setmode',
- * 'fileno', and/or 'O_BINARY'; check your system header files.
- */
-#if defined _MSC_VER || defined __MINGW32__
- _setmode(_fileno(stdout), _O_BINARY);
-#elif defined __CYGWIN__
- /* almost certainly not needed for any modern Cygwin, but let's be safe... */
- setmode(_fileno(stdout), _O_BINARY);
-#elif defined __EMX__
- setmode(fileno(stdout), O_BINARY);
-#endif
-
- return stdout;
-}
+++ /dev/null
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- ProjectType="Visual C++"\r
- Version="8.00"\r
- Name="grabbag_static"\r
- ProjectGUID="{4cefbc81-c215-11db-8314-0800200c9a66}"\r
- RootNamespace="grabbag_static"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;FLAC__NO_DLL;DEBUG"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
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- />\r
- <Tool\r
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- />\r
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- />\r
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- />\r
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- />\r
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- />\r
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- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
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- WholeProgramOptimization="1"\r
- >\r
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- Filter="h;hpp;hxx;hm;inl;inc;xsd"\r
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"\r
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- >\r
- <File\r
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- <File\r
- RelativePath=".\cuesheet.c"\r
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- </File>\r
- <File\r
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- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- <ClCompile Include="picture.c">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- <ClCompile Include="replaygain.c">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- <ClCompile Include="seektable.c">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- <ClCompile Include="snprintf.c">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClInclude Include="..\..\..\include\share\grabbag.h">\r
- <Filter>Public Header Files</Filter>\r
- </ClInclude>\r
- <ClInclude Include="..\..\..\include\share\grabbag\cuesheet.h">\r
- <Filter>Public Header Files\grabbag</Filter>\r
- </ClInclude>\r
- <ClInclude Include="..\..\..\include\share\grabbag\file.h">\r
- <Filter>Public Header Files\grabbag</Filter>\r
- </ClInclude>\r
- <ClInclude Include="..\..\..\include\share\grabbag\picture.h">\r
- <Filter>Public Header Files\grabbag</Filter>\r
- </ClInclude>\r
- <ClInclude Include="..\..\..\include\share\grabbag\replaygain.h">\r
- <Filter>Public Header Files\grabbag</Filter>\r
- </ClInclude>\r
- <ClInclude Include="..\..\..\include\share\grabbag\seektable.h">\r
- <Filter>Public Header Files\grabbag</Filter>\r
- </ClInclude>\r
- </ItemGroup>\r
-</Project>
\ No newline at end of file
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2006-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "share/alloc.h"
-#include "share/grabbag.h"
-#include "FLAC/assert.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "share/compat.h"
-#include "share/safe_str.h"
-
-/* slightly different that strndup(): this always copies 'size' bytes starting from s into a NUL-terminated string. */
-static char *local__strndup_(const char *s, size_t size)
-{
- char *x = safe_malloc_add_2op_(size, /*+*/1);
- if(x) {
- memcpy(x, s, size);
- x[size] = '\0';
- }
- return x;
-}
-
-static FLAC__bool local__parse_type_(const char *s, size_t len, FLAC__StreamMetadata_Picture *picture)
-{
- size_t i;
- FLAC__uint32 val = 0;
-
- picture->type = FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER;
-
- if(len == 0)
- return true; /* empty string implies default to 'front cover' */
-
- for(i = 0; i < len; i++) {
- if(s[i] >= '0' && s[i] <= '9')
- val = 10*val + (FLAC__uint32)(s[i] - '0');
- else
- return false;
- }
-
- if(i == len)
- picture->type = val;
- else
- return false;
-
- return true;
-}
-
-static FLAC__bool local__parse_resolution_(const char *s, size_t len, FLAC__StreamMetadata_Picture *picture)
-{
- int state = 0;
- size_t i;
- FLAC__uint32 val = 0;
-
- picture->width = picture->height = picture->depth = picture->colors = 0;
-
- if(len == 0)
- return true; /* empty string implies client wants to get info from the file itself */
-
- for(i = 0; i < len; i++) {
- if(s[i] == 'x') {
- if(state == 0)
- picture->width = val;
- else if(state == 1)
- picture->height = val;
- else
- return false;
- state++;
- val = 0;
- }
- else if(s[i] == '/') {
- if(state == 2)
- picture->depth = val;
- else
- return false;
- state++;
- val = 0;
- }
- else if(s[i] >= '0' && s[i] <= '9')
- val = 10*val + (FLAC__uint32)(s[i] - '0');
- else
- return false;
- }
-
- if(state < 2)
- return false;
- else if(state == 2)
- picture->depth = val;
- else if(state == 3)
- picture->colors = val;
- else
- return false;
- if(picture->depth < 32 && 1u<<picture->depth < picture->colors)
- return false;
-
- return true;
-}
-
-static FLAC__bool local__extract_mime_type_(FLAC__StreamMetadata *obj)
-{
- if(obj->data.picture.data_length >= 8 && 0 == memcmp(obj->data.picture.data, "\x89PNG\x0d\x0a\x1a\x0a", 8))
- return FLAC__metadata_object_picture_set_mime_type(obj, "image/png", /*copy=*/true);
- else if(obj->data.picture.data_length >= 6 && (0 == memcmp(obj->data.picture.data, "GIF87a", 6) || 0 == memcmp(obj->data.picture.data, "GIF89a", 6)))
- return FLAC__metadata_object_picture_set_mime_type(obj, "image/gif", /*copy=*/true);
- else if(obj->data.picture.data_length >= 2 && 0 == memcmp(obj->data.picture.data, "\xff\xd8", 2))
- return FLAC__metadata_object_picture_set_mime_type(obj, "image/jpeg", /*copy=*/true);
- return false;
-}
-
-static FLAC__bool local__extract_resolution_color_info_(FLAC__StreamMetadata_Picture *picture)
-{
- const FLAC__byte *data = picture->data;
- FLAC__uint32 len = picture->data_length;
-
- if(0 == strcmp(picture->mime_type, "image/png")) {
- /* c.f. http://www.w3.org/TR/PNG/ */
- FLAC__bool need_palette = false; /* if IHDR has color_type=3, we need to also read the PLTE chunk to get the #colors */
- if(len < 8 || memcmp(data, "\x89PNG\x0d\x0a\x1a\x0a", 8))
- return false;
- /* try to find IHDR chunk */
- data += 8;
- len -= 8;
- while(len > 12) { /* every PNG chunk must be at least 12 bytes long */
- const FLAC__uint32 clen = (FLAC__uint32)data[0] << 24 | (FLAC__uint32)data[1] << 16 | (FLAC__uint32)data[2] << 8 | (FLAC__uint32)data[3];
- if(0 == memcmp(data+4, "IHDR", 4) && clen == 13) {
- unsigned color_type = data[17];
- picture->width = (FLAC__uint32)data[8] << 24 | (FLAC__uint32)data[9] << 16 | (FLAC__uint32)data[10] << 8 | (FLAC__uint32)data[11];
- picture->height = (FLAC__uint32)data[12] << 24 | (FLAC__uint32)data[13] << 16 | (FLAC__uint32)data[14] << 8 | (FLAC__uint32)data[15];
- if(color_type == 3) {
- /* even though the bit depth for color_type==3 can be 1,2,4,or 8,
- * the spec in 11.2.2 of http://www.w3.org/TR/PNG/ says that the
- * sample depth is always 8
- */
- picture->depth = 8 * 3u;
- need_palette = true;
- data += 12 + clen;
- len -= 12 + clen;
- }
- else {
- if(color_type == 0) /* greyscale, 1 sample per pixel */
- picture->depth = (FLAC__uint32)data[16];
- if(color_type == 2) /* truecolor, 3 samples per pixel */
- picture->depth = (FLAC__uint32)data[16] * 3u;
- if(color_type == 4) /* greyscale+alpha, 2 samples per pixel */
- picture->depth = (FLAC__uint32)data[16] * 2u;
- if(color_type == 6) /* truecolor+alpha, 4 samples per pixel */
- picture->depth = (FLAC__uint32)data[16] * 4u;
- picture->colors = 0;
- return true;
- }
- }
- else if(need_palette && 0 == memcmp(data+4, "PLTE", 4)) {
- picture->colors = clen / 3u;
- return true;
- }
- else if(clen + 12 > len)
- return false;
- else {
- data += 12 + clen;
- len -= 12 + clen;
- }
- }
- }
- else if(0 == strcmp(picture->mime_type, "image/jpeg")) {
- /* c.f. http://www.w3.org/Graphics/JPEG/itu-t81.pdf and Q22 of http://www.faqs.org/faqs/jpeg-faq/part1/ */
- if(len < 2 || memcmp(data, "\xff\xd8", 2))
- return false;
- data += 2;
- len -= 2;
- while(1) {
- /* look for sync FF byte */
- for( ; len > 0; data++, len--) {
- if(*data == 0xff)
- break;
- }
- if(len == 0)
- return false;
- /* eat any extra pad FF bytes before marker */
- for( ; len > 0; data++, len--) {
- if(*data != 0xff)
- break;
- }
- if(len == 0)
- return false;
- /* if we hit SOS or EOI, bail */
- if(*data == 0xda || *data == 0xd9)
- return false;
- /* looking for some SOFn */
- else if(memchr("\xc0\xc1\xc2\xc3\xc5\xc6\xc7\xc9\xca\xcb\xcd\xce\xcf", *data, 13)) {
- data++; len--; /* skip marker byte */
- if(len < 2)
- return false;
- else {
- const FLAC__uint32 clen = (FLAC__uint32)data[0] << 8 | (FLAC__uint32)data[1];
- if(clen < 8 || len < clen)
- return false;
- picture->width = (FLAC__uint32)data[5] << 8 | (FLAC__uint32)data[6];
- picture->height = (FLAC__uint32)data[3] << 8 | (FLAC__uint32)data[4];
- picture->depth = (FLAC__uint32)data[2] * (FLAC__uint32)data[7];
- picture->colors = 0;
- return true;
- }
- }
- /* else skip it */
- else {
- data++; len--; /* skip marker byte */
- if(len < 2)
- return false;
- else {
- const FLAC__uint32 clen = (FLAC__uint32)data[0] << 8 | (FLAC__uint32)data[1];
- if(clen < 2 || len < clen)
- return false;
- data += clen;
- len -= clen;
- }
- }
- }
- }
- else if(0 == strcmp(picture->mime_type, "image/gif")) {
- /* c.f. http://www.w3.org/Graphics/GIF/spec-gif89a.txt */
- if(len < 14)
- return false;
- if(memcmp(data, "GIF87a", 6) && memcmp(data, "GIF89a", 6))
- return false;
-#if 0
- /* according to the GIF spec, even if the GCTF is 0, the low 3 bits should still tell the total # colors used */
- if(data[10] & 0x80 == 0)
- return false;
-#endif
- picture->width = (FLAC__uint32)data[6] | ((FLAC__uint32)data[7] << 8);
- picture->height = (FLAC__uint32)data[8] | ((FLAC__uint32)data[9] << 8);
-#if 0
- /* this value doesn't seem to be reliable... */
- picture->depth = (((FLAC__uint32)(data[10] & 0x70) >> 4) + 1) * 3u;
-#else
- /* ...just pessimistically assume it's 24-bit color without scanning all the color tables */
- picture->depth = 8u * 3u;
-#endif
- picture->colors = 1u << ((FLAC__uint32)(data[10] & 0x07) + 1u);
- return true;
- }
- return false;
-}
-
-static const char *error_messages[] = {
- "memory allocation error",
- "invalid picture specification",
- "invalid picture specification: can't parse resolution/color part",
- "unable to extract resolution and color info from URL, user must set explicitly",
- "unable to extract resolution and color info from file, user must set explicitly",
- "error opening picture file",
- "error reading picture file",
- "invalid picture type",
- "unable to guess MIME type from file, user must set explicitly",
- "type 1 icon must be a 32x32 pixel PNG",
- "file not found", /* currently unused */
- "file is too large"
-};
-
-static const char * read_file (const char * filepath, FLAC__StreamMetadata * obj)
-{
- const FLAC__off_t size = grabbag__file_get_filesize(filepath);
- FLAC__byte *buffer;
- FILE *file;
- const char *error_message=NULL;
-
- if (size < 0)
- return error_messages[5];
-
- if (size >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) /* actual limit is less because of other fields in the PICTURE metadata block */
- return error_messages[11];
-
- if ((buffer = safe_malloc_(size)) == NULL)
- return error_messages[0];
-
- if ((file = flac_fopen(filepath, "rb")) == NULL) {
- free(buffer);
- return error_messages[5];
- }
-
- if (fread(buffer, 1, size, file) != (size_t) size) {
- fclose(file);
- free(buffer);
- return error_messages[6];
- }
- fclose(file);
-
- if (!FLAC__metadata_object_picture_set_data(obj, buffer, size, /*copy=*/false))
- error_message = error_messages[6];
- /* try to extract MIME type if user left it blank */
- else if (*obj->data.picture.mime_type == '\0' && !local__extract_mime_type_(obj))
- error_message = error_messages[8];
- /* try to extract resolution/color info if user left it blank */
- else if ((obj->data.picture.width == 0 || obj->data.picture.height == 0 || obj->data.picture.depth == 0) && !local__extract_resolution_color_info_(&obj->data.picture))
- error_message = error_messages[4];
- /* check metadata block size */
- else if (obj->length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
- error_message = error_messages[11];
-
- return error_message;
-}
-
-FLAC__StreamMetadata *grabbag__picture_parse_specification(const char *spec, const char **error_message)
-{
- FLAC__StreamMetadata *obj;
- int state = 0;
-
- FLAC__ASSERT(0 != spec);
- FLAC__ASSERT(0 != error_message);
-
- /* double protection */
- if(0 == spec)
- return 0;
- if(0 == error_message)
- return 0;
-
- *error_message = 0;
-
- if(0 == (obj = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PICTURE))) {
- *error_message = error_messages[0];
- return obj;
- }
-
- if(strchr(spec, '|')) { /* full format */
- const char *p;
- char *q;
- for(p = spec; *error_message==0 && *p; ) {
- if(*p == '|') {
- switch(state) {
- case 0: /* type */
- if(!local__parse_type_(spec, p-spec, &obj->data.picture))
- *error_message = error_messages[7];
- break;
- case 1: /* mime type */
- if(p-spec) { /* if blank, we'll try to guess later from the picture data */
- if(0 == (q = local__strndup_(spec, p-spec)))
- *error_message = error_messages[0];
- else if(!FLAC__metadata_object_picture_set_mime_type(obj, q, /*copy=*/false))
- *error_message = error_messages[0];
- }
- break;
- case 2: /* description */
- if(0 == (q = local__strndup_(spec, p-spec)))
- *error_message = error_messages[0];
- else if(!FLAC__metadata_object_picture_set_description(obj, (FLAC__byte*)q, /*copy=*/false))
- *error_message = error_messages[0];
- break;
- case 3: /* resolution/color (e.g. [300x300x16[/1234]] */
- if(!local__parse_resolution_(spec, p-spec, &obj->data.picture))
- *error_message = error_messages[2];
- break;
- default:
- *error_message = error_messages[1];
- break;
- }
- p++;
- spec = p;
- state++;
- }
- else
- p++;
- }
- }
- else { /* simple format, filename only, everything else guessed */
- if(!local__parse_type_("", 0, &obj->data.picture)) /* use default picture type */
- *error_message = error_messages[7];
- /* leave MIME type to be filled in later */
- /* leave description empty */
- /* leave the rest to be filled in later: */
- else if(!local__parse_resolution_("", 0, &obj->data.picture))
- *error_message = error_messages[2];
- else
- state = 4;
- }
-
- /* parse filename, read file, try to extract resolution/color info if needed */
- if(*error_message == 0) {
- if(state != 4)
- *error_message = error_messages[1];
- else { /* 'spec' points to filename/URL */
- if(0 == strcmp(obj->data.picture.mime_type, "-->")) { /* magic MIME type means URL */
- if(!FLAC__metadata_object_picture_set_data(obj, (FLAC__byte*)spec, strlen(spec), /*copy=*/true))
- *error_message = error_messages[0];
- else if(obj->data.picture.width == 0 || obj->data.picture.height == 0 || obj->data.picture.depth == 0)
- *error_message = error_messages[3];
- }
- else { /* regular picture file */
- *error_message = read_file (spec, obj);
- }
- }
- }
-
- if(*error_message == 0) {
- if(
- obj->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
- (
- (strcmp(obj->data.picture.mime_type, "image/png") && strcmp(obj->data.picture.mime_type, "-->")) ||
- obj->data.picture.width != 32 ||
- obj->data.picture.height != 32
- )
- )
- *error_message = error_messages[9];
- }
-
- if(*error_message && obj) {
- FLAC__metadata_object_delete(obj);
- obj = 0;
- }
-
- return obj;
-}
-
-FLAC__StreamMetadata *grabbag__picture_from_specification(int type, const char *mime_type_in, const char * description,
- const PictureResolution * res, const char * filepath, const char **error_message)
-{
-
- FLAC__StreamMetadata *obj;
- char mime_type [64] ;
-
- if (error_message == 0)
- return 0;
-
- safe_strncpy(mime_type, mime_type_in, sizeof (mime_type));
-
- *error_message = 0;
-
- if ((obj = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PICTURE)) == 0) {
- *error_message = error_messages[0];
- return obj;
- }
-
- /* Picture type if known. */
- obj->data.picture.type = type >= 0 ? type : FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER;
-
- /* Mime type if known. */
- if (mime_type_in && ! FLAC__metadata_object_picture_set_mime_type(obj, mime_type, /*copy=*/true)) {
- *error_message = error_messages[0];
- return obj;
- }
-
- /* Description if present. */
- if (description && ! FLAC__metadata_object_picture_set_description(obj, (FLAC__byte*) description, /*copy=*/true)) {
- *error_message = error_messages[0];
- return obj;
- }
-
- if (res == NULL) {
- obj->data.picture.width = 0;
- obj->data.picture.height = 0;
- obj->data.picture.depth = 0;
- obj->data.picture.colors = 0;
- }
- else {
- obj->data.picture.width = res->width;
- obj->data.picture.height = res->height;
- obj->data.picture.depth = res->depth;
- obj->data.picture.colors = res->colors;
- }
-
- if (strcmp(obj->data.picture.mime_type, "-->") == 0) { /* magic MIME type means URL */
- if (!FLAC__metadata_object_picture_set_data(obj, (FLAC__byte*)filepath, strlen(filepath), /*copy=*/true))
- *error_message = error_messages[0];
- else if (obj->data.picture.width == 0 || obj->data.picture.height == 0 || obj->data.picture.depth == 0)
- *error_message = error_messages[3];
- }
- else {
- *error_message = read_file (filepath, obj);
- }
-
- if (*error_message == NULL) {
- if (
- obj->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
- (
- (strcmp(obj->data.picture.mime_type, "image/png") && strcmp(obj->data.picture.mime_type, "-->")) ||
- obj->data.picture.width != 32 ||
- obj->data.picture.height != 32
- )
- )
- *error_message = error_messages[9];
- }
-
- if (*error_message && obj) {
- FLAC__metadata_object_delete(obj);
- obj = 0;
- }
-
- return obj;
-}
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <locale.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#if defined _MSC_VER || defined __MINGW32__
-#include <io.h> /* for chmod() */
-#endif
-#include <sys/stat.h> /* for stat(), maybe chmod() */
-
-#include "FLAC/assert.h"
-#include "FLAC/metadata.h"
-#include "FLAC/stream_decoder.h"
-#include "share/grabbag.h"
-#include "share/replaygain_analysis.h"
-#include "share/safe_str.h"
-
-#ifdef local_min
-#undef local_min
-#endif
-#define local_min(a,b) ((a)<(b)?(a):(b))
-
-#ifdef local_max
-#undef local_max
-#endif
-#define local_max(a,b) ((a)>(b)?(a):(b))
-
-static const char *reference_format_ = "%s=%2.1f dB";
-static const char *gain_format_ = "%s=%+2.2f dB";
-static const char *peak_format_ = "%s=%1.8f";
-
-static double album_peak_, title_peak_;
-
-const unsigned GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED = 190;
-/*
- FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 29 + 1 + 8 +
- FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 10 +
- FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 12 +
- FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 10 +
- FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 12
-*/
-
-const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS = (const FLAC__byte * const)"REPLAYGAIN_REFERENCE_LOUDNESS";
-const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN = (const FLAC__byte * const)"REPLAYGAIN_TRACK_GAIN";
-const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK = (const FLAC__byte * const)"REPLAYGAIN_TRACK_PEAK";
-const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN = (const FLAC__byte * const)"REPLAYGAIN_ALBUM_GAIN";
-const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK = (const FLAC__byte * const)"REPLAYGAIN_ALBUM_PEAK";
-
-
-static FLAC__bool get_file_stats_(const char *filename, struct flac_stat_s *stats)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
- return (0 == flac_stat(filename, stats));
-}
-
-static void set_file_stats_(const char *filename, struct flac_stat_s *stats)
-{
- FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != stats);
-
- (void)flac_chmod(filename, stats->st_mode);
-}
-
-static FLAC__bool append_tag_(FLAC__StreamMetadata *block, const char *format, const FLAC__byte *name, float value)
-{
- char buffer[256];
- char *saved_locale;
- FLAC__StreamMetadata_VorbisComment_Entry entry;
-
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
- FLAC__ASSERT(0 != format);
- FLAC__ASSERT(0 != name);
-
- buffer[sizeof(buffer)-1] = '\0';
- /*
- * We need to save the old locale and switch to "C" because the locale
- * influences the formatting of %f and we want it a certain way.
- */
- saved_locale = strdup(setlocale(LC_ALL, 0));
- if (0 == saved_locale)
- return false;
- setlocale(LC_ALL, "C");
- flac_snprintf(buffer, sizeof(buffer), format, name, value);
- setlocale(LC_ALL, saved_locale);
- free(saved_locale);
-
- entry.entry = (FLAC__byte *)buffer;
- entry.length = strlen(buffer);
-
- return FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/true);
-}
-
-FLAC__bool grabbag__replaygain_is_valid_sample_frequency(unsigned sample_frequency)
-{
- return ValidGainFrequency( sample_frequency );
-}
-
-FLAC__bool grabbag__replaygain_init(unsigned sample_frequency)
-{
- title_peak_ = album_peak_ = 0.0;
- return InitGainAnalysis((long)sample_frequency) == INIT_GAIN_ANALYSIS_OK;
-}
-
-FLAC__bool grabbag__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples)
-{
- /* using a small buffer improves data locality; we'd like it to fit easily in the dcache */
- static flac_float_t lbuffer[2048], rbuffer[2048];
- static const unsigned nbuffer = sizeof(lbuffer) / sizeof(lbuffer[0]);
- FLAC__int32 block_peak = 0, s;
- unsigned i, j;
-
- FLAC__ASSERT(bps >= 4 && bps <= FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE);
- FLAC__ASSERT(FLAC__MIN_BITS_PER_SAMPLE == 4);
- /*
- * We use abs() on a FLAC__int32 which is undefined for the most negative value.
- * If the reference codec ever handles 32bps we will have to write a special
- * case here.
- */
- FLAC__ASSERT(FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE < 32);
-
- if(bps == 16) {
- if(is_stereo) {
- j = 0;
- while(samples > 0) {
- const unsigned n = local_min(samples, nbuffer);
- for(i = 0; i < n; i++, j++) {
- s = input[0][j];
- lbuffer[i] = (flac_float_t)s;
- s = abs(s);
- block_peak = local_max(block_peak, s);
-
- s = input[1][j];
- rbuffer[i] = (flac_float_t)s;
- s = abs(s);
- block_peak = local_max(block_peak, s);
- }
- samples -= n;
- if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
- return false;
- }
- }
- else {
- j = 0;
- while(samples > 0) {
- const unsigned n = local_min(samples, nbuffer);
- for(i = 0; i < n; i++, j++) {
- s = input[0][j];
- lbuffer[i] = (flac_float_t)s;
- s = abs(s);
- block_peak = local_max(block_peak, s);
- }
- samples -= n;
- if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
- return false;
- }
- }
- }
- else { /* bps must be < 32 according to above assertion */
- const double scale = (
- (bps > 16)?
- (double)1. / (double)(1u << (bps - 16)) :
- (double)(1u << (16 - bps))
- );
-
- if(is_stereo) {
- j = 0;
- while(samples > 0) {
- const unsigned n = local_min(samples, nbuffer);
- for(i = 0; i < n; i++, j++) {
- s = input[0][j];
- lbuffer[i] = (flac_float_t)(scale * (double)s);
- s = abs(s);
- block_peak = local_max(block_peak, s);
-
- s = input[1][j];
- rbuffer[i] = (flac_float_t)(scale * (double)s);
- s = abs(s);
- block_peak = local_max(block_peak, s);
- }
- samples -= n;
- if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
- return false;
- }
- }
- else {
- j = 0;
- while(samples > 0) {
- const unsigned n = local_min(samples, nbuffer);
- for(i = 0; i < n; i++, j++) {
- s = input[0][j];
- lbuffer[i] = (flac_float_t)(scale * (double)s);
- s = abs(s);
- block_peak = local_max(block_peak, s);
- }
- samples -= n;
- if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
- return false;
- }
- }
- }
-
- {
- const double peak_scale = (double)(1u << (bps - 1));
- double peak = (double)block_peak / peak_scale;
- if(peak > title_peak_)
- title_peak_ = peak;
- if(peak > album_peak_)
- album_peak_ = peak;
- }
-
- return true;
-}
-
-void grabbag__replaygain_get_album(float *gain, float *peak)
-{
- *gain = (float)GetAlbumGain();
- *peak = (float)album_peak_;
- album_peak_ = 0.0;
-}
-
-void grabbag__replaygain_get_title(float *gain, float *peak)
-{
- *gain = (float)GetTitleGain();
- *peak = (float)title_peak_;
- title_peak_ = 0.0;
-}
-
-
-typedef struct {
- unsigned channels;
- unsigned bits_per_sample;
- unsigned sample_rate;
- FLAC__bool error;
-} DecoderInstance;
-
-static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- DecoderInstance *instance = (DecoderInstance*)client_data;
- const unsigned bits_per_sample = frame->header.bits_per_sample;
- const unsigned channels = frame->header.channels;
- const unsigned sample_rate = frame->header.sample_rate;
- const unsigned samples = frame->header.blocksize;
-
- (void)decoder;
-
- if(
- !instance->error &&
- (channels == 2 || channels == 1) &&
- bits_per_sample == instance->bits_per_sample &&
- channels == instance->channels &&
- sample_rate == instance->sample_rate
- ) {
- instance->error = !grabbag__replaygain_analyze(buffer, channels==2, bits_per_sample, samples);
- }
- else {
- instance->error = true;
- }
-
- if(!instance->error)
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
- else
- return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
-}
-
-static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- DecoderInstance *instance = (DecoderInstance*)client_data;
-
- (void)decoder;
-
- if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
- instance->bits_per_sample = metadata->data.stream_info.bits_per_sample;
- instance->channels = metadata->data.stream_info.channels;
- instance->sample_rate = metadata->data.stream_info.sample_rate;
-
- if(instance->channels != 1 && instance->channels != 2) {
- instance->error = true;
- return;
- }
-
- if(!grabbag__replaygain_is_valid_sample_frequency(instance->sample_rate)) {
- instance->error = true;
- return;
- }
- }
-}
-
-static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- DecoderInstance *instance = (DecoderInstance*)client_data;
-
- (void)decoder, (void)status;
-
- instance->error = true;
-}
-
-const char *grabbag__replaygain_analyze_file(const char *filename, float *title_gain, float *title_peak)
-{
- DecoderInstance instance;
- FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new();
-
- if(0 == decoder)
- return "memory allocation error";
-
- instance.error = false;
-
- /* It does these three by default but lets be explicit: */
- FLAC__stream_decoder_set_md5_checking(decoder, false);
- FLAC__stream_decoder_set_metadata_ignore_all(decoder);
- FLAC__stream_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_STREAMINFO);
-
- if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &instance) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
- FLAC__stream_decoder_delete(decoder);
- return "initializing decoder";
- }
-
- if(!FLAC__stream_decoder_process_until_end_of_stream(decoder) || instance.error) {
- FLAC__stream_decoder_delete(decoder);
- return "decoding file";
- }
-
- FLAC__stream_decoder_delete(decoder);
-
- grabbag__replaygain_get_title(title_gain, title_peak);
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_vorbiscomment(FLAC__StreamMetadata *block, float album_gain, float album_peak, float title_gain, float title_peak)
-{
- const char *error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_reference(block)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_title(block, title_gain, title_peak)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_album(block, album_gain, album_peak)))
- return error;
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_vorbiscomment_reference(FLAC__StreamMetadata *block)
-{
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- if(FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, (const char *)GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS) < 0)
- return "memory allocation error";
-
- if(!append_tag_(block, reference_format_, GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS, ReplayGainReferenceLoudness))
- return "memory allocation error";
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_vorbiscomment_album(FLAC__StreamMetadata *block, float album_gain, float album_peak)
-{
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- if(
- FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, (const char *)GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN) < 0 ||
- FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, (const char *)GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK) < 0
- )
- return "memory allocation error";
-
- if(
- !append_tag_(block, gain_format_, GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN, album_gain) ||
- !append_tag_(block, peak_format_, GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK, album_peak)
- )
- return "memory allocation error";
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_vorbiscomment_title(FLAC__StreamMetadata *block, float title_gain, float title_peak)
-{
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- if(
- FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, (const char *)GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN) < 0 ||
- FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, (const char *)GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK) < 0
- )
- return "memory allocation error";
-
- if(
- !append_tag_(block, gain_format_, GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN, title_gain) ||
- !append_tag_(block, peak_format_, GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK, title_peak)
- )
- return "memory allocation error";
-
- return 0;
-}
-
-static const char *store_to_file_pre_(const char *filename, FLAC__Metadata_Chain **chain, FLAC__StreamMetadata **block)
-{
- FLAC__Metadata_Iterator *iterator;
- const char *error;
- FLAC__bool found_vc_block = false;
-
- if(0 == (*chain = FLAC__metadata_chain_new()))
- return "memory allocation error";
-
- if(!FLAC__metadata_chain_read(*chain, filename)) {
- error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(*chain)];
- FLAC__metadata_chain_delete(*chain);
- return error;
- }
-
- if(0 == (iterator = FLAC__metadata_iterator_new())) {
- FLAC__metadata_chain_delete(*chain);
- return "memory allocation error";
- }
-
- FLAC__metadata_iterator_init(iterator, *chain);
-
- do {
- *block = FLAC__metadata_iterator_get_block(iterator);
- if((*block)->type == FLAC__METADATA_TYPE_VORBIS_COMMENT)
- found_vc_block = true;
- } while(!found_vc_block && FLAC__metadata_iterator_next(iterator));
-
- if(!found_vc_block) {
- /* create a new block */
- *block = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
- if(0 == *block) {
- FLAC__metadata_chain_delete(*chain);
- FLAC__metadata_iterator_delete(iterator);
- return "memory allocation error";
- }
- while(FLAC__metadata_iterator_next(iterator))
- ;
- if(!FLAC__metadata_iterator_insert_block_after(iterator, *block)) {
- error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(*chain)];
- FLAC__metadata_chain_delete(*chain);
- FLAC__metadata_iterator_delete(iterator);
- return error;
- }
- /* iterator is left pointing to new block */
- FLAC__ASSERT(FLAC__metadata_iterator_get_block(iterator) == *block);
- }
-
- FLAC__metadata_iterator_delete(iterator);
-
- FLAC__ASSERT(0 != *block);
- FLAC__ASSERT((*block)->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- return 0;
-}
-
-static const char *store_to_file_post_(const char *filename, FLAC__Metadata_Chain *chain, FLAC__bool preserve_modtime)
-{
- struct flac_stat_s stats;
- const FLAC__bool have_stats = get_file_stats_(filename, &stats);
-
- (void)grabbag__file_change_stats(filename, /*read_only=*/false);
-
- FLAC__metadata_chain_sort_padding(chain);
- if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, preserve_modtime)) {
- const char *error;
- error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)];
- FLAC__metadata_chain_delete(chain);
- return error;
- }
-
- FLAC__metadata_chain_delete(chain);
-
- if(have_stats)
- set_file_stats_(filename, &stats);
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_file(const char *filename, float album_gain, float album_peak, float title_gain, float title_peak, FLAC__bool preserve_modtime)
-{
- FLAC__Metadata_Chain *chain;
- FLAC__StreamMetadata *block = NULL;
- const char *error;
-
- if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment(block, album_gain, album_peak, title_gain, title_peak))) {
- FLAC__metadata_chain_delete(chain);
- return error;
- }
-
- if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
- return error;
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_file_reference(const char *filename, FLAC__bool preserve_modtime)
-{
- FLAC__Metadata_Chain *chain;
- FLAC__StreamMetadata *block = NULL;
- const char *error;
-
- if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_reference(block))) {
- FLAC__metadata_chain_delete(chain);
- return error;
- }
-
- if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
- return error;
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_file_album(const char *filename, float album_gain, float album_peak, FLAC__bool preserve_modtime)
-{
- FLAC__Metadata_Chain *chain;
- FLAC__StreamMetadata *block = NULL;
- const char *error;
-
- if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_album(block, album_gain, album_peak))) {
- FLAC__metadata_chain_delete(chain);
- return error;
- }
-
- if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
- return error;
-
- return 0;
-}
-
-const char *grabbag__replaygain_store_to_file_title(const char *filename, float title_gain, float title_peak, FLAC__bool preserve_modtime)
-{
- FLAC__Metadata_Chain *chain;
- FLAC__StreamMetadata *block = NULL;
- const char *error;
-
- if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
- return error;
-
- if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_title(block, title_gain, title_peak))) {
- FLAC__metadata_chain_delete(chain);
- return error;
- }
-
- if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
- return error;
-
- return 0;
-}
-
-static FLAC__bool parse_double_(const FLAC__StreamMetadata_VorbisComment_Entry *entry, double *val)
-{
- char s[32], *end;
- const char *p, *q;
- double v;
-
- FLAC__ASSERT(0 != entry);
- FLAC__ASSERT(0 != val);
-
- p = (const char *)entry->entry;
- q = strchr(p, '=');
- if(0 == q)
- return false;
- q++;
- safe_strncpy(s, q, local_min(sizeof(s), (size_t) (entry->length - (q-p))));
-
- v = strtod(s, &end);
- if(end == s)
- return false;
-
- *val = v;
- return true;
-}
-
-FLAC__bool grabbag__replaygain_load_from_vorbiscomment(const FLAC__StreamMetadata *block, FLAC__bool album_mode, FLAC__bool strict, double *reference, double *gain, double *peak)
-{
- int reference_offset, gain_offset, peak_offset;
- char *saved_locale;
- FLAC__bool res = true;
-
- FLAC__ASSERT(0 != block);
- FLAC__ASSERT(0 != reference);
- FLAC__ASSERT(0 != gain);
- FLAC__ASSERT(0 != peak);
- FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
-
- /* Default to current level until overridden by a detected tag; this
- * will always be true until we change replaygain_analysis.c
- */
- *reference = ReplayGainReferenceLoudness;
-
- /*
- * We need to save the old locale and switch to "C" because the locale
- * influences the behaviour of strtod and we want it a certain way.
- */
- saved_locale = strdup(setlocale(LC_ALL, 0));
- if (0 == saved_locale)
- return false;
- setlocale(LC_ALL, "C");
-
- if(0 <= (reference_offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, /*offset=*/0, (const char *)GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS)))
- (void)parse_double_(block->data.vorbis_comment.comments + reference_offset, reference);
-
- if(0 > (gain_offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, /*offset=*/0, (const char *)(album_mode? GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN : GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN))))
- res = false;
- if(0 > (peak_offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, /*offset=*/0, (const char *)(album_mode? GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK : GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK))))
- res = false;
-
- if(res && !parse_double_(block->data.vorbis_comment.comments + gain_offset, gain))
- res = false;
- if(res && !parse_double_(block->data.vorbis_comment.comments + peak_offset, peak))
- res = false;
-
- setlocale(LC_ALL, saved_locale);
- free(saved_locale);
-
- /* something failed; retry with strict */
- if (!res && !strict)
- res = grabbag__replaygain_load_from_vorbiscomment(block, !album_mode, /*strict=*/true, reference, gain, peak);
-
- return res;
-}
-
-double grabbag__replaygain_compute_scale_factor(double peak, double gain, double preamp, FLAC__bool prevent_clipping)
-{
- double scale;
- FLAC__ASSERT(peak >= 0.0);
- gain += preamp;
- scale = (float) pow(10.0, gain * 0.05);
- if(prevent_clipping && peak > 0.0) {
- const double max_scale = (float)(1.0 / peak);
- if(scale > max_scale)
- scale = max_scale;
- }
- return scale;
-}
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "share/grabbag.h"
-#include "share/compat.h"
-#include "FLAC/assert.h"
-#include <stdlib.h> /* for atoi() */
-#include <string.h>
-
-FLAC__bool grabbag__seektable_convert_specification_to_template(const char *spec, FLAC__bool only_explicit_placeholders, FLAC__uint64 total_samples_to_encode, unsigned sample_rate, FLAC__StreamMetadata *seektable_template, FLAC__bool *spec_has_real_points)
-{
- unsigned i;
- const char *pt;
-
- FLAC__ASSERT(0 != spec);
- FLAC__ASSERT(0 != seektable_template);
- FLAC__ASSERT(seektable_template->type == FLAC__METADATA_TYPE_SEEKTABLE);
-
- if(0 != spec_has_real_points)
- *spec_has_real_points = false;
-
- for(pt = spec, i = 0; pt && *pt; i++) {
- const char *q = strchr(pt, ';');
- FLAC__ASSERT(0 != q);
-
- if(q > pt) {
- if(0 == strncmp(pt, "X;", 2)) { /* -S X */
- if(!FLAC__metadata_object_seektable_template_append_placeholders(seektable_template, 1))
- return false;
- }
- else if(q[-1] == 'x') { /* -S #x */
- if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */
- if(0 != spec_has_real_points)
- *spec_has_real_points = true;
- if(!only_explicit_placeholders) {
- const int n = (unsigned)atoi(pt);
- if(n > 0)
- if(!FLAC__metadata_object_seektable_template_append_spaced_points(seektable_template, (unsigned)n, total_samples_to_encode))
- return false;
- }
- }
- }
- else if(q[-1] == 's') { /* -S #s */
- if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */
- FLAC__ASSERT(sample_rate > 0);
- if(0 != spec_has_real_points)
- *spec_has_real_points = true;
- if(!only_explicit_placeholders) {
- const double sec = atof(pt);
- if(sec > 0.0) {
- unsigned samples = (unsigned)(sec * (double)sample_rate);
- /* Restrict seekpoints to two per second of audio. */
- samples = samples < sample_rate / 2 ? sample_rate / 2 : samples;
- if(samples > 0) {
- /* +1 for the initial point at sample 0 */
- if(!FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(seektable_template, samples, total_samples_to_encode))
- return false;
- }
- }
- }
- }
- }
- else { /* -S # */
- if(0 != spec_has_real_points)
- *spec_has_real_points = true;
- if(!only_explicit_placeholders) {
- char *endptr;
- const FLAC__int64 n = (FLAC__int64)strtoll(pt, &endptr, 10);
- if(
- (n > 0 || (endptr > pt && *endptr == ';')) && /* is a valid number (extra check needed for "0") */
- (total_samples_to_encode == 0 || (FLAC__uint64)n < total_samples_to_encode) /* number is not >= the known total_samples_to_encode */
- )
- if(!FLAC__metadata_object_seektable_template_append_point(seektable_template, (FLAC__uint64)n))
- return false;
- }
- }
- }
-
- pt = ++q;
- }
-
- if(!FLAC__metadata_object_seektable_template_sort(seektable_template, /*compact=*/true))
- return false;
-
- return true;
-}
+++ /dev/null
-/* grabbag - Convenience lib for various routines common to several tools
- * Copyright (C) 2013-2016 Xiph.org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdarg.h>
-
-#include "share/compat.h"
-
-/*
- * FLAC needs to compile and work correctly on systems with a normal ISO C99
- * snprintf as well as Microsoft Visual Studio which has an non-standards
- * conformant snprint_s function.
- *
- * The important difference occurs when the resultant string (plus string
- * terminator) would have been longer than the supplied size parameter. When
- * this happens, ISO C's snprintf returns the length of resultant string, but
- * does not over-write the end of the buffer. MS's snprintf_s in this case
- * returns -1.
- *
- * The _MSC_VER code below attempts to modify the return code for vsnprintf_s
- * to something that is more compatible with the behaviour of the ISO C version.
- */
-
-int
-flac_snprintf(char *str, size_t size, const char *fmt, ...)
-{
- va_list va;
- int rc;
-
-#if defined _MSC_VER
- if (size == 0)
- return 1024;
-#endif
-
- va_start (va, fmt);
-
-#if defined _MSC_VER
- rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
- if (rc < 0)
- rc = size - 1;
-#elif defined __MINGW32__
- rc = __mingw_vsnprintf (str, size, fmt, va);
-#else
- rc = vsnprintf (str, size, fmt, va);
-#endif
- va_end (va);
-
- return rc;
-}
-
-int
-flac_vsnprintf(char *str, size_t size, const char *fmt, va_list va)
-{
- int rc;
-
-#if defined _MSC_VER
- if (size == 0)
- return 1024;
- rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
- if (rc < 0)
- rc = size - 1;
-#elif defined __MINGW32__
- rc = __mingw_vsnprintf (str, size, fmt, va);
-#else
- rc = vsnprintf (str, size, fmt, va);
-#endif
-
- return rc;
-}
+++ /dev/null
-#
-# GNU makefile
-#
-
-topdir = ../../..
-
-LIB_NAME = libreplaygain_analysis
-INCLUDES = -I$(topdir)/include
-
-SRCS_C = \
- replaygain_analysis.c
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/*
- * ReplayGainAnalysis - analyzes input samples and give the recommended dB change
- * Copyright (C) 2001 David Robinson and Glen Sawyer
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * concept and filter values by David Robinson (David@Robinson.org)
- * -- blame him if you think the idea is flawed
- * original coding by Glen Sawyer (glensawyer@hotmail.com)
- * -- blame him if you think this runs too slowly, or the coding is otherwise flawed
- *
- * lots of code improvements by Frank Klemm ( http://www.uni-jena.de/~pfk/mpp/ )
- * -- credit him for all the _good_ programming ;)
- *
- * minor cosmetic tweaks to integrate with FLAC by Josh Coalson
- *
- *
- * For an explanation of the concepts and the basic algorithms involved, go to:
- * http://www.replaygain.org/
- */
-
-/*
- * Here's the deal. Call
- *
- * InitGainAnalysis ( long samplefreq );
- *
- * to initialize everything. Call
- *
- * AnalyzeSamples ( const flac_float_t* left_samples,
- * const flac_float_t* right_samples,
- * size_t num_samples,
- * int num_channels );
- *
- * as many times as you want, with as many or as few samples as you want.
- * If mono, pass the sample buffer in through left_samples, leave
- * right_samples NULL, and make sure num_channels = 1.
- *
- * GetTitleGain()
- *
- * will return the recommended dB level change for all samples analyzed
- * SINCE THE LAST TIME you called GetTitleGain() OR InitGainAnalysis().
- *
- * GetAlbumGain()
- *
- * will return the recommended dB level change for all samples analyzed
- * since InitGainAnalysis() was called and finalized with GetTitleGain().
- *
- * Pseudo-code to process an album:
- *
- * flac_float_t l_samples [4096];
- * flac_float_t r_samples [4096];
- * size_t num_samples;
- * unsigned int num_songs;
- * unsigned int i;
- *
- * InitGainAnalysis ( 44100 );
- * for ( i = 1; i <= num_songs; i++ ) {
- * while ( ( num_samples = getSongSamples ( song[i], left_samples, right_samples ) ) > 0 )
- * AnalyzeSamples ( left_samples, right_samples, num_samples, 2 );
- * fprintf ("Recommended dB change for song %2d: %+6.2f dB\n", i, GetTitleGain() );
- * }
- * fprintf ("Recommended dB change for whole album: %+6.2f dB\n", GetAlbumGain() );
- */
-
-/*
- * So here's the main source of potential code confusion:
- *
- * The filters applied to the incoming samples are IIR filters,
- * meaning they rely on up to <filter order> number of previous samples
- * AND up to <filter order> number of previous filtered samples.
- *
- * I set up the AnalyzeSamples routine to minimize memory usage and interface
- * complexity. The speed isn't compromised too much (I don't think), but the
- * internal complexity is higher than it should be for such a relatively
- * simple routine.
- *
- * Optimization/clarity suggestions are welcome.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include "share/alloc.h"
-#include "share/compat.h"
-#include "share/replaygain_analysis.h"
-
-flac_float_t ReplayGainReferenceLoudness = 89.0; /* in dB SPL */
-
-#define YULE_ORDER 10
-#define BUTTER_ORDER 2
-#define RMS_PERCENTILE 0.95 /* percentile which is louder than the proposed level */
-#define RMS_WINDOW_TIME 50 /* Time slice size [ms] */
-#define STEPS_per_dB 100. /* Table entries per dB */
-#define MAX_dB 120. /* Table entries for 0...MAX_dB (normal max. values are 70...80 dB) */
-
-#define MAX_ORDER (BUTTER_ORDER > YULE_ORDER ? BUTTER_ORDER : YULE_ORDER)
-#define PINK_REF 64.82 /* 298640883795 */ /* calibration value */
-
-static flac_float_t linprebuf [MAX_ORDER * 2];
-static flac_float_t* linpre; /* left input samples, with pre-buffer */
-static flac_float_t* lstepbuf;
-static flac_float_t* lstep; /* left "first step" (i.e. post first filter) samples */
-static flac_float_t* loutbuf;
-static flac_float_t* lout; /* left "out" (i.e. post second filter) samples */
-static flac_float_t rinprebuf [MAX_ORDER * 2];
-static flac_float_t* rinpre; /* right input samples ... */
-static flac_float_t* rstepbuf;
-static flac_float_t* rstep;
-static flac_float_t* routbuf;
-static flac_float_t* rout;
-static unsigned int sampleWindow; /* number of samples required to reach number of milliseconds required for RMS window */
-static unsigned long totsamp;
-static double lsum;
-static double rsum;
-#if 0
-static uint32_t A [(size_t)(STEPS_per_dB * MAX_dB)];
-static uint32_t B [(size_t)(STEPS_per_dB * MAX_dB)];
-#else
-/* [JEC] Solaris Forte compiler doesn't like float calc in array indices */
-static uint32_t A [120 * 100];
-static uint32_t B [120 * 100];
-#endif
-
-#ifdef _MSC_VER
-#pragma warning ( disable : 4305 )
-#endif
-
-struct ReplayGainFilter {
- long rate;
- unsigned downsample;
- flac_float_t BYule[YULE_ORDER+1];
- flac_float_t AYule[YULE_ORDER+1];
- flac_float_t BButter[BUTTER_ORDER+1];
- flac_float_t AButter[BUTTER_ORDER+1];
-};
-
-static struct ReplayGainFilter *replaygainfilter;
-
-static const struct ReplayGainFilter ReplayGainFilters[] = {
-
- {
- 48000, 0, /* ORIGINAL */
- { 0.03857599435200, -0.02160367184185, -0.00123395316851, -0.00009291677959, -0.01655260341619, 0.02161526843274, -0.02074045215285, 0.00594298065125, 0.00306428023191, 0.00012025322027, 0.00288463683916 },
- { 1.00000000000000, -3.84664617118067, 7.81501653005538, -11.34170355132042, 13.05504219327545, -12.28759895145294, 9.48293806319790, -5.87257861775999, 2.75465861874613, -0.86984376593551, 0.13919314567432 },
- { 0.98621192462708, -1.97242384925416, 0.98621192462708 },
- { 1.00000000000000, -1.97223372919527, 0.97261396931306 },
- },
-
- {
- 44100, 0, /* ORIGINAL */
- { 0.05418656406430, -0.02911007808948, -0.00848709379851, -0.00851165645469, -0.00834990904936, 0.02245293253339, -0.02596338512915, 0.01624864962975, -0.00240879051584, 0.00674613682247, -0.00187763777362 },
- { 1.00000000000000, -3.47845948550071, 6.36317777566148, -8.54751527471874, 9.47693607801280, -8.81498681370155, 6.85401540936998, -4.39470996079559, 2.19611684890774, -0.75104302451432, 0.13149317958808 },
- { 0.98500175787242, -1.97000351574484, 0.98500175787242 },
- { 1.00000000000000, -1.96977855582618, 0.97022847566350 },
- },
-
- {
- 37800, 0,
- { 0.10296717174470, -0.04877975583256, -0.02878009075237, -0.03519509188311, 0.02888717172493, -0.00609872684844, 0.00209851217112, 0.00911704668543, 0.01154404718589, -0.00630293688700, 0.00107527155228 },
- { 1.00000000000000, -2.64848054923531, 3.58406058405771, -3.83794914179161, 3.90142345804575, -3.50179818637243, 2.67085284083076, -1.82581142372418, 1.09530368139801, -0.47689017820395, 0.11171431535905 },
- { 0.98252400815195, -1.96504801630391, 0.98252400815195 },
- { 1.00000000000000, -1.96474258269041, 0.96535344991740 },
- },
-
- {
- 36000, 0,
- { 0.11572297028613, -0.04120916051252, -0.04977731768022, -0.01047308680426, 0.00750863219157, 0.00055507694408, 0.00140344192886, 0.01286095246036, 0.00998223033885, -0.00725013810661, 0.00326503346879 },
- { 1.00000000000000, -2.43606802820871, 3.01907406973844, -2.90372016038192, 2.67947188094303, -2.17606479220391, 1.44912956803015, -0.87785765549050, 0.53592202672557, -0.26469344817509, 0.07495878059717 },
- { 0.98165826840326, -1.96331653680652, 0.98165826840326 },
- { 1.00000000000000, -1.96298008938934, 0.96365298422371 },
- },
-
- {
- 32000, 0, /* ORIGINAL */
- { 0.15457299681924, -0.09331049056315, -0.06247880153653, 0.02163541888798, -0.05588393329856, 0.04781476674921, 0.00222312597743, 0.03174092540049, -0.01390589421898, 0.00651420667831, -0.00881362733839 },
- { 1.00000000000000, -2.37898834973084, 2.84868151156327, -2.64577170229825, 2.23697657451713, -1.67148153367602, 1.00595954808547, -0.45953458054983, 0.16378164858596, -0.05032077717131, 0.02347897407020 },
- { 0.97938932735214, -1.95877865470428, 0.97938932735214 },
- { 1.00000000000000, -1.95835380975398, 0.95920349965459 },
- },
-
- {
- 28000, 0,
- { 0.23882392323383, -0.22007791534089, -0.06014581950332, 0.05004458058021, -0.03293111254977, 0.02348678189717, 0.04290549799671, -0.00938141862174, 0.00015095146303, -0.00712601540885, -0.00626520210162 },
- { 1.00000000000000, -2.06894080899139, 1.76944699577212, -0.81404732584187, 0.25418286850232, -0.30340791669762, 0.35616884070937, -0.14967310591258, -0.07024154183279, 0.11078404345174, -0.03551838002425 },
- { 0.97647981663949, -1.95295963327897, 0.97647981663949 },
- { 1.00000000000000, -1.95240635772520, 0.95351290883275 },
-
- },
-
- {
- 24000, 0, /* ORIGINAL */
- { 0.30296907319327, -0.22613988682123, -0.08587323730772, 0.03282930172664, -0.00915702933434, -0.02364141202522, -0.00584456039913, 0.06276101321749, -0.00000828086748, 0.00205861885564, -0.02950134983287 },
- { 1.00000000000000, -1.61273165137247, 1.07977492259970, -0.25656257754070, -0.16276719120440, -0.22638893773906, 0.39120800788284, -0.22138138954925, 0.04500235387352, 0.02005851806501, 0.00302439095741 },
- { 0.97531843204928, -1.95063686409857, 0.97531843204928 },
- { 1.00000000000000, -1.95002759149878, 0.95124613669835 },
- },
-
- {
- 22050, 0, /* ORIGINAL */
- { 0.33642304856132, -0.25572241425570, -0.11828570177555, 0.11921148675203, -0.07834489609479, -0.00469977914380, -0.00589500224440, 0.05724228140351, 0.00832043980773, -0.01635381384540, -0.01760176568150 },
- { 1.00000000000000, -1.49858979367799, 0.87350271418188, 0.12205022308084, -0.80774944671438, 0.47854794562326, -0.12453458140019, -0.04067510197014, 0.08333755284107, -0.04237348025746, 0.02977207319925 },
- { 0.97316523498161, -1.94633046996323, 0.97316523498161 },
- { 1.00000000000000, -1.94561023566527, 0.94705070426118 },
- },
-
- {
- 18900, 0,
- { 0.38412657295385, -0.44533729608120, 0.20426638066221, -0.28031676047946, 0.31484202614802, -0.26078311203207, 0.12925201224848, -0.01141164696062, 0.03036522115769, -0.03776339305406, 0.00692036603586 },
- { 1.00000000000000, -1.74403915585708, 1.96686095832499, -2.10081452941881, 1.90753918182846, -1.83814263754422, 1.36971352214969, -0.77883609116398, 0.39266422457649, -0.12529383592986, 0.05424760697665 },
- { 0.96535326815829, -1.93070653631658, 0.96535326815829 },
- { 1.00000000000000, -1.92950577983524, 0.93190729279793 },
- },
-
- {
- 16000, 0, /* ORIGINAL */
- { 0.44915256608450, -0.14351757464547, -0.22784394429749, -0.01419140100551, 0.04078262797139, -0.12398163381748, 0.04097565135648, 0.10478503600251, -0.01863887810927, -0.03193428438915, 0.00541907748707 },
- { 1.00000000000000, -0.62820619233671, 0.29661783706366, -0.37256372942400, 0.00213767857124, -0.42029820170918, 0.22199650564824, 0.00613424350682, 0.06747620744683, 0.05784820375801, 0.03222754072173 },
- { 0.96454515552826, -1.92909031105652, 0.96454515552826 },
- { 1.00000000000000, -1.92783286977036, 0.93034775234268 },
- },
-
- {
- 12000, 0, /* ORIGINAL */
- { 0.56619470757641, -0.75464456939302, 0.16242137742230, 0.16744243493672, -0.18901604199609, 0.30931782841830, -0.27562961986224, 0.00647310677246, 0.08647503780351, -0.03788984554840, -0.00588215443421 },
- { 1.00000000000000, -1.04800335126349, 0.29156311971249, -0.26806001042947, 0.00819999645858, 0.45054734505008, -0.33032403314006, 0.06739368333110, -0.04784254229033, 0.01639907836189, 0.01807364323573 },
- { 0.96009142950541, -1.92018285901082, 0.96009142950541 },
- { 1.00000000000000, -1.91858953033784, 0.92177618768381 },
- },
-
- {
- 11025, 0, /* ORIGINAL */
- { 0.58100494960553, -0.53174909058578, -0.14289799034253, 0.17520704835522, 0.02377945217615, 0.15558449135573, -0.25344790059353, 0.01628462406333, 0.06920467763959, -0.03721611395801, -0.00749618797172 },
- { 1.00000000000000, -0.51035327095184, -0.31863563325245, -0.20256413484477, 0.14728154134330, 0.38952639978999, -0.23313271880868, -0.05246019024463, -0.02505961724053, 0.02442357316099, 0.01818801111503 },
- { 0.95856916599601, -1.91713833199203, 0.95856916599601 },
- { 1.00000000000000, -1.91542108074780, 0.91885558323625 },
- },
-
- {
- 8000, 0, /* ORIGINAL */
- { 0.53648789255105, -0.42163034350696, -0.00275953611929, 0.04267842219415, -0.10214864179676, 0.14590772289388, -0.02459864859345, -0.11202315195388, -0.04060034127000, 0.04788665548180, -0.02217936801134 },
- { 1.00000000000000, -0.25049871956020, -0.43193942311114, -0.03424681017675, -0.04678328784242, 0.26408300200955, 0.15113130533216, -0.17556493366449, -0.18823009262115, 0.05477720428674, 0.04704409688120 },
- { 0.94597685600279, -1.89195371200558, 0.94597685600279 },
- { 1.00000000000000, -1.88903307939452, 0.89487434461664 },
- },
-
-};
-
-#ifdef _MSC_VER
-#pragma warning ( default : 4305 )
-#endif
-
-/* When calling this procedure, make sure that ip[-order] and op[-order] point to real data! */
-
-static void
-filter ( const flac_float_t* input, flac_float_t* output, size_t nSamples, const flac_float_t* a, const flac_float_t* b, size_t order, unsigned downsample )
-{
- double y;
- size_t i;
- size_t k;
-
- const flac_float_t* input_head = input;
- const flac_float_t* input_tail;
-
- flac_float_t* output_head = output;
- flac_float_t* output_tail;
-
- for ( i = 0; i < nSamples; i++, input_head += downsample, ++output_head ) {
-
- input_tail = input_head;
- output_tail = output_head;
-
- y = *input_head * b[0];
-
- for ( k = 1; k <= order; k++ ) {
- input_tail -= downsample;
- --output_tail;
- y += *input_tail * b[k] - *output_tail * a[k];
- }
-
- output[i] = (flac_float_t)y;
- }
-}
-
-/* returns a INIT_GAIN_ANALYSIS_OK if successful, INIT_GAIN_ANALYSIS_ERROR if not */
-
-static struct ReplayGainFilter*
-CreateGainFilter ( long samplefreq )
-{
- unsigned i;
- long maxrate = 0;
- unsigned downsample = 1;
- struct ReplayGainFilter* gainfilter = malloc(sizeof(*gainfilter));
-
- if ( !gainfilter )
- return 0;
-
- while (1) {
- for ( i = 0; i < sizeof(ReplayGainFilters)/sizeof(ReplayGainFilters[0]); ++i ) {
- if (maxrate < ReplayGainFilters[i].rate)
- maxrate = ReplayGainFilters[i].rate;
-
- if ( ReplayGainFilters[i].rate == samplefreq ) {
- *gainfilter = ReplayGainFilters[i];
- gainfilter->downsample = downsample;
- return gainfilter;
- }
- }
-
- if (samplefreq < maxrate)
- break;
-
- while (samplefreq > maxrate) {
- downsample *= 2;
- samplefreq /= 2;
- }
- }
-
- free(gainfilter);
-
- return 0;
-}
-
-static void*
-ReallocateWindowBuffer(unsigned window_size, flac_float_t **window_buffer)
-{
- *window_buffer = safe_realloc_(*window_buffer, sizeof(**window_buffer) * (window_size + MAX_ORDER));
- return *window_buffer;
-}
-
-static int
-ResetSampleFrequency ( long samplefreq ) {
- int i;
-
- free(replaygainfilter);
-
- replaygainfilter = CreateGainFilter( samplefreq );
-
- if ( ! replaygainfilter)
- return INIT_GAIN_ANALYSIS_ERROR;
-
- sampleWindow =
- (replaygainfilter->rate * RMS_WINDOW_TIME + 1000-1) / 1000;
-
- if ( ! ReallocateWindowBuffer(sampleWindow, &lstepbuf) ||
- ! ReallocateWindowBuffer(sampleWindow, &rstepbuf) ||
- ! ReallocateWindowBuffer(sampleWindow, &loutbuf) ||
- ! ReallocateWindowBuffer(sampleWindow, &routbuf) ) {
-
- return INIT_GAIN_ANALYSIS_ERROR;
- }
-
- /* zero out initial values */
- for ( i = 0; i < MAX_ORDER; i++ )
- linprebuf[i] = lstepbuf[i] = loutbuf[i] = rinprebuf[i] = rstepbuf[i] = routbuf[i] = 0.;
-
- lsum = 0.;
- rsum = 0.;
- totsamp = 0;
-
- memset ( A, 0, sizeof(A) );
-
- return INIT_GAIN_ANALYSIS_OK;
-}
-
-int
-ValidGainFrequency ( long samplefreq )
-{
- struct ReplayGainFilter* gainfilter = CreateGainFilter( samplefreq );
-
- free(gainfilter);
-
- return gainfilter != 0;
-}
-
-int
-InitGainAnalysis ( long samplefreq )
-{
- if (ResetSampleFrequency(samplefreq) != INIT_GAIN_ANALYSIS_OK) {
- return INIT_GAIN_ANALYSIS_ERROR;
- }
-
- linpre = linprebuf + MAX_ORDER;
- rinpre = rinprebuf + MAX_ORDER;
- lstep = lstepbuf + MAX_ORDER;
- rstep = rstepbuf + MAX_ORDER;
- lout = loutbuf + MAX_ORDER;
- rout = routbuf + MAX_ORDER;
-
- memset ( B, 0, sizeof(B) );
-
- return INIT_GAIN_ANALYSIS_OK;
-}
-
-/* returns GAIN_ANALYSIS_OK if successful, GAIN_ANALYSIS_ERROR if not */
-
-int
-AnalyzeSamples ( const flac_float_t* left_samples, const flac_float_t* right_samples, size_t num_samples, int num_channels )
-{
- unsigned downsample = replaygainfilter->downsample;
- const flac_float_t* curleft;
- const flac_float_t* curright;
- long prebufsamples;
- long batchsamples;
- long cursamples;
- long cursamplepos;
- int i;
-
- num_samples /= downsample;
-
- if ( num_samples == 0 )
- return GAIN_ANALYSIS_OK;
-
- cursamplepos = 0;
- batchsamples = num_samples;
-
- switch ( num_channels) {
- case 1: right_samples = left_samples;
- case 2: break;
- default: return GAIN_ANALYSIS_ERROR;
- }
-
- prebufsamples = MAX_ORDER;
- if ((size_t) prebufsamples > num_samples)
- prebufsamples = num_samples;
-
- for ( i = 0; i < prebufsamples; ++i ) {
- linprebuf[i+MAX_ORDER] = left_samples [i * downsample];
- rinprebuf[i+MAX_ORDER] = right_samples[i * downsample];
- }
-
- while ( batchsamples > 0 ) {
- cursamples = batchsamples > (long)(sampleWindow-totsamp) ? (long)(sampleWindow - totsamp) : batchsamples;
- if ( cursamplepos < MAX_ORDER ) {
- downsample = 1;
- curleft = linpre+cursamplepos;
- curright = rinpre+cursamplepos;
- if (cursamples > MAX_ORDER - cursamplepos )
- cursamples = MAX_ORDER - cursamplepos;
- }
- else {
- downsample = replaygainfilter->downsample;
- curleft = left_samples + cursamplepos * downsample;
- curright = right_samples + cursamplepos * downsample;
- }
-
- filter ( curleft , lstep + totsamp, cursamples, replaygainfilter->AYule, replaygainfilter->BYule, YULE_ORDER, downsample );
- filter ( curright, rstep + totsamp, cursamples, replaygainfilter->AYule, replaygainfilter->BYule, YULE_ORDER, downsample );
-
- filter ( lstep + totsamp, lout + totsamp, cursamples, replaygainfilter->AButter, replaygainfilter->BButter, BUTTER_ORDER, 1 );
- filter ( rstep + totsamp, rout + totsamp, cursamples, replaygainfilter->AButter, replaygainfilter->BButter, BUTTER_ORDER, 1 );
-
- for ( i = 0; i < cursamples; i++ ) { /* Get the squared values */
- lsum += lout [totsamp+i] * lout [totsamp+i];
- rsum += rout [totsamp+i] * rout [totsamp+i];
- }
-
- batchsamples -= cursamples;
- cursamplepos += cursamples;
- totsamp += cursamples;
- if ( totsamp == sampleWindow ) { /* Get the Root Mean Square (RMS) for this set of samples */
- double val = STEPS_per_dB * 10. * log10 ( (lsum+rsum) / totsamp * 0.5 + 1.e-37 );
- int ival = (int) val;
- if ( ival < 0 ) ival = 0;
- if ( ival >= (int)(sizeof(A)/sizeof(*A)) ) ival = (int)(sizeof(A)/sizeof(*A)) - 1;
- A [ival]++;
- lsum = rsum = 0.;
- memmove ( loutbuf , loutbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
- memmove ( routbuf , routbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
- memmove ( lstepbuf, lstepbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
- memmove ( rstepbuf, rstepbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
- totsamp = 0;
- }
- if ( totsamp > sampleWindow ) /* somehow I really screwed up: Error in programming! Contact author about totsamp > sampleWindow */
- return GAIN_ANALYSIS_ERROR;
- }
-
- if ( num_samples < MAX_ORDER ) {
- memmove ( linprebuf, linprebuf + num_samples, (MAX_ORDER-num_samples) * sizeof(flac_float_t) );
- memmove ( rinprebuf, rinprebuf + num_samples, (MAX_ORDER-num_samples) * sizeof(flac_float_t) );
- memcpy ( linprebuf + MAX_ORDER - num_samples, left_samples, num_samples * sizeof(flac_float_t) );
- memcpy ( rinprebuf + MAX_ORDER - num_samples, right_samples, num_samples * sizeof(flac_float_t) );
- }
- else {
- downsample = replaygainfilter->downsample;
-
- left_samples += (num_samples - MAX_ORDER) * downsample;
- right_samples += (num_samples - MAX_ORDER) * downsample;
-
- for ( i = 0; i < MAX_ORDER; ++i ) {
- linprebuf[i] = left_samples [i * downsample];
- rinprebuf[i] = right_samples[i * downsample];
- }
- }
-
- return GAIN_ANALYSIS_OK;
-}
-
-
-static flac_float_t
-analyzeResult ( uint32_t* Array, size_t len )
-{
- uint32_t elems;
- int32_t upper;
- size_t i;
-
- elems = 0;
- for ( i = 0; i < len; i++ )
- elems += Array[i];
- if ( elems == 0 )
- return GAIN_NOT_ENOUGH_SAMPLES;
-
-/* workaround for GCC bug #61423: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61423 */
-#if 0
- upper = (int32_t) ceil (elems * (1. - RMS_PERCENTILE));
-#else
- upper = (int32_t) (elems / 20 + ((elems % 20) ? 1 : 0));
-#endif
- for ( i = len; i-- > 0; ) {
- if ( (upper -= Array[i]) <= 0 )
- break;
- }
-
- return (flac_float_t) ((flac_float_t)PINK_REF - (flac_float_t)i / (flac_float_t)STEPS_per_dB);
-}
-
-
-flac_float_t
-GetTitleGain ( void )
-{
- flac_float_t retval;
- unsigned int i;
-
- retval = analyzeResult ( A, sizeof(A)/sizeof(*A) );
-
- for ( i = 0; i < sizeof(A)/sizeof(*A); i++ ) {
- B[i] += A[i];
- A[i] = 0;
- }
-
- for ( i = 0; i < MAX_ORDER; i++ )
- linprebuf[i] = lstepbuf[i] = loutbuf[i] = rinprebuf[i] = rstepbuf[i] = routbuf[i] = 0.f;
-
- totsamp = 0;
- lsum = rsum = 0.;
- return retval;
-}
-
-
-flac_float_t
-GetAlbumGain ( void )
-{
- return analyzeResult ( B, sizeof(B)/sizeof(*B) );
-}
-
-/* end of replaygain_analysis.c */
+++ /dev/null
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-#
-# GNU makefile
-#
-
-topdir = ../../..
-
-LIB_NAME = libreplaygain_synthesis
-INCLUDES = -I./include -I$(topdir)/include
-
-SRCS_C = \
- replaygain_synthesis.c
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/* replaygain_synthesis - Routines for applying ReplayGain to a signal
- * Copyright (C) 2002-2009 Josh Coalson
- * Copyright (C) 2011-2016 Xiph.Org Foundation
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-/*
- * This is an aggregation of pieces of code from John Edwards' WaveGain
- * program. Mostly cosmetic changes were made; otherwise, the dithering
- * code is almost untouched and the gain processing was converted from
- * processing a whole file to processing chunks of samples.
- *
- * The original copyright notices for WaveGain's dither.c and wavegain.c
- * appear below:
- */
-/*
- * (c) 2002 John Edwards
- * mostly lifted from work by Frank Klemm
- * random functions for dithering.
- */
-/*
- * Copyright (C) 2002 John Edwards
- * Additional code by Magnus Holmgren and Gian-Carlo Pascutto
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <string.h> /* for memset() */
-#include <math.h>
-#include "share/replaygain_synthesis.h"
-#include "FLAC/assert.h"
-
-#define FLAC__I64L(x) x##LL
-
-
-/*
- * the following is based on parts of dither.c
- */
-
-
-/*
- * This is a simple random number generator with good quality for audio purposes.
- * It consists of two polycounters with opposite rotation direction and different
- * periods. The periods are coprime, so the total period is the product of both.
- *
- * -------------------------------------------------------------------------------------------------
- * +-> |31:30:29:28:27:26:25:24:23:22:21:20:19:18:17:16:15:14:13:12:11:10: 9: 8: 7: 6: 5: 4: 3: 2: 1: 0|
- * | -------------------------------------------------------------------------------------------------
- * | | | | | | |
- * | +--+--+--+-XOR-+--------+
- * | |
- * +--------------------------------------------------------------------------------------+
- *
- * -------------------------------------------------------------------------------------------------
- * |31:30:29:28:27:26:25:24:23:22:21:20:19:18:17:16:15:14:13:12:11:10: 9: 8: 7: 6: 5: 4: 3: 2: 1: 0| <-+
- * ------------------------------------------------------------------------------------------------- |
- * | | | | |
- * +--+----XOR----+--+ |
- * | |
- * +----------------------------------------------------------------------------------------+
- *
- *
- * The first has an period of 3*5*17*257*65537, the second of 7*47*73*178481,
- * which gives a period of 18.410.713.077.675.721.215. The result is the
- * XORed values of both generators.
- */
-
-static unsigned int random_int_(void)
-{
- static const unsigned char parity_[256] = {
- 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,
- 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,
- 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,
- 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,
- 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,
- 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,
- 0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,
- 1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0
- };
- static unsigned int r1_ = 1;
- static unsigned int r2_ = 1;
-
- unsigned int t1, t2, t3, t4;
-
- /* Parity calculation is done via table lookup, this is also available
- * on CPUs without parity, can be implemented in C and avoid unpredictable
- * jumps and slow rotate through the carry flag operations.
- */
- t3 = t1 = r1_; t4 = t2 = r2_;
- t1 &= 0xF5; t2 >>= 25;
- t1 = parity_[t1]; t2 &= 0x63;
- t1 <<= 31; t2 = parity_[t2];
-
- return (r1_ = (t3 >> 1) | t1 ) ^ (r2_ = (t4 + t4) | t2 );
-}
-
-/* gives a equal distributed random number */
-/* between -2^31*mult and +2^31*mult */
-static double random_equi_(double mult)
-{
- return mult * (int) random_int_();
-}
-
-/* gives a triangular distributed random number */
-/* between -2^32*mult and +2^32*mult */
-static double random_triangular_(double mult)
-{
- return mult * ( (double) (int) random_int_() + (double) (int) random_int_() );
-}
-
-
-static const float F44_0 [16 + 32] = {
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0,
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0,
-
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0,
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0,
-
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0,
- (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0, (float)0
-};
-
-
-static const float F44_1 [16 + 32] = { /* SNR(w) = 4.843163 dB, SNR = -3.192134 dB */
- (float) 0.85018292704024355931, (float) 0.29089597350995344721, (float)-0.05021866022121039450, (float)-0.23545456294599161833,
- (float)-0.58362726442227032096, (float)-0.67038978965193036429, (float)-0.38566861572833459221, (float)-0.15218663390367969967,
- (float)-0.02577543084864530676, (float) 0.14119295297688728127, (float) 0.22398848581628781612, (float) 0.15401727203382084116,
- (float) 0.05216161232906000929, (float)-0.00282237820999675451, (float)-0.03042794608323867363, (float)-0.03109780942998826024,
-
- (float) 0.85018292704024355931, (float) 0.29089597350995344721, (float)-0.05021866022121039450, (float)-0.23545456294599161833,
- (float)-0.58362726442227032096, (float)-0.67038978965193036429, (float)-0.38566861572833459221, (float)-0.15218663390367969967,
- (float)-0.02577543084864530676, (float) 0.14119295297688728127, (float) 0.22398848581628781612, (float) 0.15401727203382084116,
- (float) 0.05216161232906000929, (float)-0.00282237820999675451, (float)-0.03042794608323867363, (float)-0.03109780942998826024,
-
- (float) 0.85018292704024355931, (float) 0.29089597350995344721, (float)-0.05021866022121039450, (float)-0.23545456294599161833,
- (float)-0.58362726442227032096, (float)-0.67038978965193036429, (float)-0.38566861572833459221, (float)-0.15218663390367969967,
- (float)-0.02577543084864530676, (float) 0.14119295297688728127, (float) 0.22398848581628781612, (float) 0.15401727203382084116,
- (float) 0.05216161232906000929, (float)-0.00282237820999675451, (float)-0.03042794608323867363, (float)-0.03109780942998826024,
-};
-
-
-static const float F44_2 [16 + 32] = { /* SNR(w) = 10.060213 dB, SNR = -12.766730 dB */
- (float) 1.78827593892108555290, (float) 0.95508210637394326553, (float)-0.18447626783899924429, (float)-0.44198126506275016437,
- (float)-0.88404052492547413497, (float)-1.42218907262407452967, (float)-1.02037566838362314995, (float)-0.34861755756425577264,
- (float)-0.11490230170431934434, (float) 0.12498899339968611803, (float) 0.38065885268563131927, (float) 0.31883491321310506562,
- (float) 0.10486838686563442765, (float)-0.03105361685110374845, (float)-0.06450524884075370758, (float)-0.02939198261121969816,
-
- (float) 1.78827593892108555290, (float) 0.95508210637394326553, (float)-0.18447626783899924429, (float)-0.44198126506275016437,
- (float)-0.88404052492547413497, (float)-1.42218907262407452967, (float)-1.02037566838362314995, (float)-0.34861755756425577264,
- (float)-0.11490230170431934434, (float) 0.12498899339968611803, (float) 0.38065885268563131927, (float) 0.31883491321310506562,
- (float) 0.10486838686563442765, (float)-0.03105361685110374845, (float)-0.06450524884075370758, (float)-0.02939198261121969816,
-
- (float) 1.78827593892108555290, (float) 0.95508210637394326553, (float)-0.18447626783899924429, (float)-0.44198126506275016437,
- (float)-0.88404052492547413497, (float)-1.42218907262407452967, (float)-1.02037566838362314995, (float)-0.34861755756425577264,
- (float)-0.11490230170431934434, (float) 0.12498899339968611803, (float) 0.38065885268563131927, (float) 0.31883491321310506562,
- (float) 0.10486838686563442765, (float)-0.03105361685110374845, (float)-0.06450524884075370758, (float)-0.02939198261121969816,
-};
-
-
-static const float F44_3 [16 + 32] = { /* SNR(w) = 15.382598 dB, SNR = -29.402334 dB */
- (float) 2.89072132015058161445, (float) 2.68932810943698754106, (float) 0.21083359339410251227, (float)-0.98385073324997617515,
- (float)-1.11047823227097316719, (float)-2.18954076314139673147, (float)-2.36498032881953056225, (float)-0.95484132880101140785,
- (float)-0.23924057925542965158, (float)-0.13865235703915925642, (float) 0.43587843191057992846, (float) 0.65903257226026665927,
- (float) 0.24361815372443152787, (float)-0.00235974960154720097, (float) 0.01844166574603346289, (float) 0.01722945988740875099,
-
- (float) 2.89072132015058161445, (float) 2.68932810943698754106, (float) 0.21083359339410251227, (float)-0.98385073324997617515,
- (float)-1.11047823227097316719, (float)-2.18954076314139673147, (float)-2.36498032881953056225, (float)-0.95484132880101140785,
- (float)-0.23924057925542965158, (float)-0.13865235703915925642, (float) 0.43587843191057992846, (float) 0.65903257226026665927,
- (float) 0.24361815372443152787, (float)-0.00235974960154720097, (float) 0.01844166574603346289, (float) 0.01722945988740875099,
-
- (float) 2.89072132015058161445, (float) 2.68932810943698754106, (float) 0.21083359339410251227, (float)-0.98385073324997617515,
- (float)-1.11047823227097316719, (float)-2.18954076314139673147, (float)-2.36498032881953056225, (float)-0.95484132880101140785,
- (float)-0.23924057925542965158, (float)-0.13865235703915925642, (float) 0.43587843191057992846, (float) 0.65903257226026665927,
- (float) 0.24361815372443152787, (float)-0.00235974960154720097, (float) 0.01844166574603346289, (float) 0.01722945988740875099
-};
-
-
-static double scalar16_(const float* x, const float* y)
-{
- return
- x[ 0]*y[ 0] + x[ 1]*y[ 1] + x[ 2]*y[ 2] + x[ 3]*y[ 3] +
- x[ 4]*y[ 4] + x[ 5]*y[ 5] + x[ 6]*y[ 6] + x[ 7]*y[ 7] +
- x[ 8]*y[ 8] + x[ 9]*y[ 9] + x[10]*y[10] + x[11]*y[11] +
- x[12]*y[12] + x[13]*y[13] + x[14]*y[14] + x[15]*y[15];
-}
-
-
-void FLAC__replaygain_synthesis__init_dither_context(DitherContext *d, int bits, int shapingtype)
-{
- static unsigned char default_dither [] = { 92, 92, 88, 84, 81, 78, 74, 67, 0, 0 };
- static const float* F [] = { F44_0, F44_1, F44_2, F44_3 };
-
- int indx;
-
- if (shapingtype < 0) shapingtype = 0;
- if (shapingtype > 3) shapingtype = 3;
- d->ShapingType = (NoiseShaping)shapingtype;
- indx = bits - 11 - shapingtype;
- if (indx < 0) indx = 0;
- if (indx > 9) indx = 9;
-
- memset ( d->ErrorHistory , 0, sizeof (d->ErrorHistory ) );
- memset ( d->DitherHistory, 0, sizeof (d->DitherHistory) );
-
- d->FilterCoeff = F [shapingtype];
- d->Mask = ((FLAC__uint64)-1) << (32 - bits);
- d->Add = 0.5 * ((1L << (32 - bits)) - 1);
- d->Dither = 0.01f*default_dither[indx] / (((FLAC__int64)1) << bits);
- d->LastHistoryIndex = 0;
-}
-
-/*
- * the following is based on parts of wavegain.c
- */
-
-static FLAC__int64 dither_output_(DitherContext *d, FLAC__bool do_dithering, int shapingtype, int i, double Sum, int k)
-{
- union {
- double d;
- FLAC__int64 i;
- } doubletmp;
- double Sum2;
- FLAC__int64 val;
-
-#define ROUND64(x) ( doubletmp.d = (x) + d->Add + (FLAC__int64)FLAC__I64L(0x001FFFFD80000000), doubletmp.i - (FLAC__int64)FLAC__I64L(0x433FFFFD80000000) )
-
- if(do_dithering) {
- if(shapingtype == 0) {
- double tmp = random_equi_(d->Dither);
- Sum2 = tmp - d->LastRandomNumber [k];
- d->LastRandomNumber [k] = (int)tmp;
- Sum2 = Sum += Sum2;
- val = ROUND64(Sum2) & d->Mask;
- }
- else {
- Sum2 = random_triangular_(d->Dither) - scalar16_(d->DitherHistory[k], d->FilterCoeff + i);
- Sum += d->DitherHistory [k] [(-1-i)&15] = (float)Sum2;
- Sum2 = Sum + scalar16_(d->ErrorHistory [k], d->FilterCoeff + i);
- val = ROUND64(Sum2) & d->Mask;
- d->ErrorHistory [k] [(-1-i)&15] = (float)(Sum - val);
- }
- return val;
- }
- else
- return ROUND64(Sum);
-
-#undef ROUND64
-}
-
-#if 0
- float peak = 0.f,
- new_peak,
- factor_clip
- double scale,
- dB;
-
- ...
-
- peak is in the range -32768.0 .. 32767.0
-
- /* calculate factors for ReplayGain and ClippingPrevention */
- *track_gain = GetTitleGain() + settings->man_gain;
- scale = (float) pow(10., *track_gain * 0.05);
- if(settings->clip_prev) {
- factor_clip = (float) (32767./( peak + 1));
- if(scale < factor_clip)
- factor_clip = 1.f;
- else
- factor_clip /= scale;
- scale *= factor_clip;
- }
- new_peak = (float) peak * scale;
-
- dB = 20. * log10(scale);
- *track_gain = (float) dB;
-
- const double scale = pow(10., (double)gain * 0.05);
-#endif
-
-
-size_t FLAC__replaygain_synthesis__apply_gain(FLAC__byte *data_out, FLAC__bool little_endian_data_out, FLAC__bool unsigned_data_out, const FLAC__int32 * const input[], unsigned wide_samples, unsigned channels, const unsigned source_bps, const unsigned target_bps, const double scale, const FLAC__bool hard_limit, FLAC__bool do_dithering, DitherContext *dither_context)
-{
- static const FLAC__int64 hard_clip_factors_[33] = {
- 0, /* 0 bits-per-sample (not supported) */
- 0, /* 1 bits-per-sample (not supported) */
- 0, /* 2 bits-per-sample (not supported) */
- 0, /* 3 bits-per-sample (not supported) */
- -8, /* 4 bits-per-sample */
- -16, /* 5 bits-per-sample */
- -32, /* 6 bits-per-sample */
- -64, /* 7 bits-per-sample */
- -128, /* 8 bits-per-sample */
- -256, /* 9 bits-per-sample */
- -512, /* 10 bits-per-sample */
- -1024, /* 11 bits-per-sample */
- -2048, /* 12 bits-per-sample */
- -4096, /* 13 bits-per-sample */
- -8192, /* 14 bits-per-sample */
- -16384, /* 15 bits-per-sample */
- -32768, /* 16 bits-per-sample */
- -65536, /* 17 bits-per-sample */
- -131072, /* 18 bits-per-sample */
- -262144, /* 19 bits-per-sample */
- -524288, /* 20 bits-per-sample */
- -1048576, /* 21 bits-per-sample */
- -2097152, /* 22 bits-per-sample */
- -4194304, /* 23 bits-per-sample */
- -8388608, /* 24 bits-per-sample */
- -16777216, /* 25 bits-per-sample */
- -33554432, /* 26 bits-per-sample */
- -67108864, /* 27 bits-per-sample */
- -134217728, /* 28 bits-per-sample */
- -268435456, /* 29 bits-per-sample */
- -536870912, /* 30 bits-per-sample */
- -1073741824, /* 31 bits-per-sample */
- (FLAC__int64)(-1073741824) * 2 /* 32 bits-per-sample */
- };
- const FLAC__int32 conv_shift = 32 - target_bps;
- const FLAC__int64 hard_clip_factor = hard_clip_factors_[target_bps];
- /*
- * The integer input coming in has a varying range based on the
- * source_bps. We want to normalize it to [-1.0, 1.0) so instead
- * of doing two multiplies on each sample, we just multiple
- * 'scale' by 1/(2^(source_bps-1))
- */
- const double multi_scale = scale / (double)(1u << (source_bps-1));
-
- FLAC__byte * const start = data_out;
- unsigned i, channel;
- const FLAC__int32 *input_;
- double sample;
- const unsigned bytes_per_sample = target_bps / 8;
- const unsigned last_history_index = dither_context->LastHistoryIndex;
- NoiseShaping noise_shaping = dither_context->ShapingType;
- FLAC__int64 val64;
- FLAC__int32 val32;
- FLAC__int32 uval32;
- const FLAC__uint32 twiggle = 1u << (target_bps - 1);
-
- FLAC__ASSERT(channels > 0 && channels <= FLAC_SHARE__MAX_SUPPORTED_CHANNELS);
- FLAC__ASSERT(source_bps >= 4);
- FLAC__ASSERT(target_bps >= 4);
- FLAC__ASSERT(source_bps <= 32);
- FLAC__ASSERT(target_bps < 32);
- FLAC__ASSERT((target_bps & 7) == 0);
-
- for(channel = 0; channel < channels; channel++) {
- const unsigned incr = bytes_per_sample * channels;
- data_out = start + bytes_per_sample * channel;
- input_ = input[channel];
- for(i = 0; i < wide_samples; i++, data_out += incr) {
- sample = (double)input_[i] * multi_scale;
-
- if(hard_limit) {
- /* hard 6dB limiting */
- if(sample < -0.5)
- sample = tanh((sample + 0.5) / (1-0.5)) * (1-0.5) - 0.5;
- else if(sample > 0.5)
- sample = tanh((sample - 0.5) / (1-0.5)) * (1-0.5) + 0.5;
- }
- sample *= 2147483647.;
-
- val64 = dither_output_(dither_context, do_dithering, noise_shaping, (i + last_history_index) % 32, sample, channel) >> conv_shift;
-
- val32 = (FLAC__int32)val64;
- if(val64 >= -hard_clip_factor)
- val32 = (FLAC__int32)(-(hard_clip_factor+1));
- else if(val64 < hard_clip_factor)
- val32 = (FLAC__int32)hard_clip_factor;
-
- uval32 = (FLAC__uint32)val32;
- if (unsigned_data_out)
- uval32 ^= twiggle;
-
- if (little_endian_data_out) {
- switch(target_bps) {
- case 24:
- data_out[2] = (FLAC__byte)(uval32 >> 16);
- /* fall through */
- case 16:
- data_out[1] = (FLAC__byte)(uval32 >> 8);
- /* fall through */
- case 8:
- data_out[0] = (FLAC__byte)uval32;
- break;
- }
- }
- else {
- switch(target_bps) {
- case 24:
- data_out[0] = (FLAC__byte)(uval32 >> 16);
- data_out[1] = (FLAC__byte)(uval32 >> 8);
- data_out[2] = (FLAC__byte)uval32;
- break;
- case 16:
- data_out[0] = (FLAC__byte)(uval32 >> 8);
- data_out[1] = (FLAC__byte)uval32;
- break;
- case 8:
- data_out[0] = (FLAC__byte)uval32;
- break;
- }
- }
- }
- }
- dither_context->LastHistoryIndex = (last_history_index + wide_samples) % 32;
-
- return wide_samples * channels * (target_bps/8);
-}
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8.00"\r
- Name="replaygain_synthesis_static"\r
- ProjectGUID="{4cefbc8a-c215-11db-8314-0800200c9a66}"\r
- RootNamespace="replaygain_synthesis_static"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;FLAC__NO_DLL;DEBUG"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
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-#
-# GNU makefile
-#
-
-topdir = ../../..
-libdir = $(topdir)/objs/$(BUILD)/lib
-
-LIB_NAME = libutf8
-
-ifeq ($(OS),Darwin)
- EXPLICIT_LIBS = $(libdir)/libgrabbag.a $(ICONV_LIBS)
-else
- LIBS = -lgrabbag $(ICONV_LIBS)
-endif
-
-INCLUDES = -I$(topdir)/include
-
-SRCS_C = \
- charset.c \
- iconvert.c \
- utf8.c
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-
-/*
- * If you need to generate more maps, use makemap.c on a system
- * with a decent iconv.
- */
-
-static const unsigned short mapping_iso_8859_2[256] = {
- 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
- 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
- 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
- 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
- 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
- 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
- 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
- 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
- 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
- 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
- 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
- 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
- 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
- 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
- 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
- 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f,
- 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
- 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
- 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
- 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
- 0x00a0, 0x0104, 0x02d8, 0x0141, 0x00a4, 0x013d, 0x015a, 0x00a7,
- 0x00a8, 0x0160, 0x015e, 0x0164, 0x0179, 0x00ad, 0x017d, 0x017b,
- 0x00b0, 0x0105, 0x02db, 0x0142, 0x00b4, 0x013e, 0x015b, 0x02c7,
- 0x00b8, 0x0161, 0x015f, 0x0165, 0x017a, 0x02dd, 0x017e, 0x017c,
- 0x0154, 0x00c1, 0x00c2, 0x0102, 0x00c4, 0x0139, 0x0106, 0x00c7,
- 0x010c, 0x00c9, 0x0118, 0x00cb, 0x011a, 0x00cd, 0x00ce, 0x010e,
- 0x0110, 0x0143, 0x0147, 0x00d3, 0x00d4, 0x0150, 0x00d6, 0x00d7,
- 0x0158, 0x016e, 0x00da, 0x0170, 0x00dc, 0x00dd, 0x0162, 0x00df,
- 0x0155, 0x00e1, 0x00e2, 0x0103, 0x00e4, 0x013a, 0x0107, 0x00e7,
- 0x010d, 0x00e9, 0x0119, 0x00eb, 0x011b, 0x00ed, 0x00ee, 0x010f,
- 0x0111, 0x0144, 0x0148, 0x00f3, 0x00f4, 0x0151, 0x00f6, 0x00f7,
- 0x0159, 0x016f, 0x00fa, 0x0171, 0x00fc, 0x00fd, 0x0163, 0x02d9
-};
-
-static struct {
- const char *name;
- const unsigned short *map;
- struct charset *charset;
-} maps[] = {
- { "ISO-8859-2", mapping_iso_8859_2, 0 },
- { 0, 0, 0 }
-};
-
-static const struct {
- const char *bad;
- const char *good;
-} names[] = {
- { "ANSI_X3.4-1968", "us-ascii" },
- { 0, 0 }
-};
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/*
- * See the corresponding header file for a description of the functions
- * that this file provides.
- *
- * This was first written for Ogg Vorbis but could be of general use.
- *
- * The only deliberate assumption about data sizes is that a short has
- * at least 16 bits, but this code has only been tested on systems with
- * 8-bit char, 16-bit short and 32-bit int.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if !defined _WIN32 && !defined HAVE_ICONV /* should be && defined USE_CHARSET_CONVERT */
-
-#include <stdlib.h>
-
-#include "share/alloc.h"
-#include "charset.h"
-
-#include "charmaps.h"
-
-/*
- * This is like the standard strcasecmp, but it does not depend
- * on the locale. Locale-dependent functions can be dangerous:
- * we once had a bug involving strcasecmp("iso", "ISO") in a
- * Turkish locale!
- *
- * (I'm not really sure what the official standard says
- * about the sign of strcasecmp("Z", "["), but usually
- * we're only interested in whether it's zero.)
- */
-
-static int ascii_strcasecmp(const char *s1, const char *s2)
-{
- char c1, c2;
-
- for (;; s1++, s2++) {
- if (!*s1 || !*s2)
- break;
- if (*s1 == *s2)
- continue;
- c1 = *s1;
- if ('a' <= c1 && c1 <= 'z')
- c1 += 'A' - 'a';
- c2 = *s2;
- if ('a' <= c2 && c2 <= 'z')
- c2 += 'A' - 'a';
- if (c1 != c2)
- break;
- }
- return (unsigned char)*s1 - (unsigned char)*s2;
-}
-
-/*
- * UTF-8 equivalents of the C library's wctomb() and mbtowc().
- */
-
-int utf8_mbtowc(int *pwc, const char *s, size_t n)
-{
- unsigned char c;
- int wc, i, k;
-
- if (!n || !s)
- return 0;
-
- c = *s;
- if (c < 0x80) {
- if (pwc)
- *pwc = c;
- return c ? 1 : 0;
- }
- else if (c < 0xc2)
- return -1;
- else if (c < 0xe0) {
- if (n >= 2 && (s[1] & 0xc0) == 0x80) {
- if (pwc)
- *pwc = ((c & 0x1f) << 6) | (s[1] & 0x3f);
- return 2;
- }
- else
- return -1;
- }
- else if (c < 0xf0)
- k = 3;
- else if (c < 0xf8)
- k = 4;
- else if (c < 0xfc)
- k = 5;
- else if (c < 0xfe)
- k = 6;
- else
- return -1;
-
- if (n < (size_t)k)
- return -1;
- wc = *s++ & ((1 << (7 - k)) - 1);
- for (i = 1; i < k; i++) {
- if ((*s & 0xc0) != 0x80)
- return -1;
- wc = (wc << 6) | (*s++ & 0x3f);
- }
- if (wc < (1 << (5 * k - 4)))
- return -1;
- if (pwc)
- *pwc = wc;
- return k;
-}
-
-int utf8_wctomb(char *s, int wc1)
-{
- unsigned int wc = wc1;
-
- if (!s)
- return 0;
- if (wc < (1u << 7)) {
- *s++ = wc;
- return 1;
- }
- else if (wc < (1u << 11)) {
- *s++ = 0xc0 | (wc >> 6);
- *s++ = 0x80 | (wc & 0x3f);
- return 2;
- }
- else if (wc < (1u << 16)) {
- *s++ = 0xe0 | (wc >> 12);
- *s++ = 0x80 | ((wc >> 6) & 0x3f);
- *s++ = 0x80 | (wc & 0x3f);
- return 3;
- }
- else if (wc < (1u << 21)) {
- *s++ = 0xf0 | (wc >> 18);
- *s++ = 0x80 | ((wc >> 12) & 0x3f);
- *s++ = 0x80 | ((wc >> 6) & 0x3f);
- *s++ = 0x80 | (wc & 0x3f);
- return 4;
- }
- else if (wc < (1u << 26)) {
- *s++ = 0xf8 | (wc >> 24);
- *s++ = 0x80 | ((wc >> 18) & 0x3f);
- *s++ = 0x80 | ((wc >> 12) & 0x3f);
- *s++ = 0x80 | ((wc >> 6) & 0x3f);
- *s++ = 0x80 | (wc & 0x3f);
- return 5;
- }
- else if (wc < (1u << 31)) {
- *s++ = 0xfc | (wc >> 30);
- *s++ = 0x80 | ((wc >> 24) & 0x3f);
- *s++ = 0x80 | ((wc >> 18) & 0x3f);
- *s++ = 0x80 | ((wc >> 12) & 0x3f);
- *s++ = 0x80 | ((wc >> 6) & 0x3f);
- *s++ = 0x80 | (wc & 0x3f);
- return 6;
- }
- else
- return -1;
-}
-
-/*
- * The charset "object" and methods.
- */
-
-struct charset {
- int max;
- int (*mbtowc)(void *table, int *pwc, const char *s, size_t n);
- int (*wctomb)(void *table, char *s, int wc);
- void *map;
-};
-
-int charset_mbtowc(struct charset *charset, int *pwc, const char *s, size_t n)
-{
- return (*charset->mbtowc)(charset->map, pwc, s, n);
-}
-
-int charset_wctomb(struct charset *charset, char *s, int wc)
-{
- return (*charset->wctomb)(charset->map, s, wc);
-}
-
-int charset_max(struct charset *charset)
-{
- return charset->max;
-}
-
-/*
- * Implementation of UTF-8.
- */
-
-static int mbtowc_utf8(void *map, int *pwc, const char *s, size_t n)
-{
- (void)map;
- return utf8_mbtowc(pwc, s, n);
-}
-
-static int wctomb_utf8(void *map, char *s, int wc)
-{
- (void)map;
- return utf8_wctomb(s, wc);
-}
-
-/*
- * Implementation of US-ASCII.
- * Probably on most architectures this compiles to less than 256 bytes
- * of code, so we can save space by not having a table for this one.
- */
-
-static int mbtowc_ascii(void *map, int *pwc, const char *s, size_t n)
-{
- int wc;
-
- (void)map;
- if (!n || !s)
- return 0;
- wc = (unsigned char)*s;
- if (wc & ~0x7f)
- return -1;
- if (pwc)
- *pwc = wc;
- return wc ? 1 : 0;
-}
-
-static int wctomb_ascii(void *map, char *s, int wc)
-{
- (void)map;
- if (!s)
- return 0;
- if (wc & ~0x7f)
- return -1;
- *s = wc;
- return 1;
-}
-
-/*
- * Implementation of ISO-8859-1.
- * Probably on most architectures this compiles to less than 256 bytes
- * of code, so we can save space by not having a table for this one.
- */
-
-static int mbtowc_iso1(void *map, int *pwc, const char *s, size_t n)
-{
- int wc;
-
- (void)map;
- if (!n || !s)
- return 0;
- wc = (unsigned char)*s;
- if (wc & ~0xff)
- return -1;
- if (pwc)
- *pwc = wc;
- return wc ? 1 : 0;
-}
-
-static int wctomb_iso1(void *map, char *s, int wc)
-{
- (void)map;
- if (!s)
- return 0;
- if (wc & ~0xff)
- return -1;
- *s = wc;
- return 1;
-}
-
-/*
- * Implementation of any 8-bit charset.
- */
-
-struct map {
- const unsigned short *from;
- struct inverse_map *to;
-};
-
-static int mbtowc_8bit(void *map1, int *pwc, const char *s, size_t n)
-{
- struct map *map = map1;
- unsigned short wc;
-
- if (!n || !s)
- return 0;
- wc = map->from[(unsigned char)*s];
- if (wc == 0xffff)
- return -1;
- if (pwc)
- *pwc = (int)wc;
- return wc ? 1 : 0;
-}
-
-/*
- * For the inverse map we use a hash table, which has the advantages
- * of small constant memory requirement and simple memory allocation,
- * but the disadvantage of slow conversion in the worst case.
- * If you need real-time performance while letting a potentially
- * malicious user define their own map, then the method used in
- * linux/drivers/char/consolemap.c would be more appropriate.
- */
-
-struct inverse_map {
- unsigned char first[256];
- unsigned char next[256];
-};
-
-/*
- * The simple hash is good enough for this application.
- * Use the alternative trivial hashes for testing.
- */
-#define HASH(i) ((i) & 0xff)
-/* #define HASH(i) 0 */
-/* #define HASH(i) 99 */
-
-static struct inverse_map *make_inverse_map(const unsigned short *from)
-{
- struct inverse_map *to;
- char used[256];
- int i, j, k;
-
- to = malloc(sizeof(struct inverse_map));
- if (!to)
- return 0;
- for (i = 0; i < 256; i++)
- to->first[i] = to->next[i] = used[i] = 0;
- for (i = 255; i >= 0; i--)
- if (from[i] != 0xffff) {
- k = HASH(from[i]);
- to->next[i] = to->first[k];
- to->first[k] = i;
- used[k] = 1;
- }
-
- /* Point the empty buckets at an empty list. */
- for (i = 0; i < 256; i++)
- if (!to->next[i])
- break;
- if (i < 256)
- for (j = 0; j < 256; j++)
- if (!used[j])
- to->first[j] = i;
-
- return to;
-}
-
-static int wctomb_8bit(void *map1, char *s, int wc1)
-{
- struct map *map = map1;
- unsigned short wc = wc1;
- int i;
-
- if (!s)
- return 0;
-
- if (wc1 & ~0xffff)
- return -1;
-
- if (1) /* Change 1 to 0 to test the case where malloc fails. */
- if (!map->to)
- map->to = make_inverse_map(map->from);
-
- if (map->to) {
- /* Use the inverse map. */
- i = map->to->first[HASH(wc)];
- for (;;) {
- if (map->from[i] == wc) {
- *s = i;
- return 1;
- }
- if (!(i = map->to->next[i]))
- break;
- }
- }
- else {
- /* We don't have an inverse map, so do a linear search. */
- for (i = 0; i < 256; i++)
- if (map->from[i] == wc) {
- *s = i;
- return 1;
- }
- }
-
- return -1;
-}
-
-/*
- * The "constructor" charset_find().
- */
-
-struct charset charset_utf8 = {
- 6,
- &mbtowc_utf8,
- &wctomb_utf8,
- 0
-};
-
-struct charset charset_iso1 = {
- 1,
- &mbtowc_iso1,
- &wctomb_iso1,
- 0
-};
-
-struct charset charset_ascii = {
- 1,
- &mbtowc_ascii,
- &wctomb_ascii,
- 0
-};
-
-struct charset *charset_find(const char *code)
-{
- int i;
-
- /* Find good (MIME) name. */
- for (i = 0; names[i].bad; i++)
- if (!ascii_strcasecmp(code, names[i].bad)) {
- code = names[i].good;
- break;
- }
-
- /* Recognise some charsets for which we avoid using a table. */
- if (!ascii_strcasecmp(code, "UTF-8"))
- return &charset_utf8;
- if (!ascii_strcasecmp(code, "US-ASCII"))
- return &charset_ascii;
- if (!ascii_strcasecmp(code, "ISO-8859-1"))
- return &charset_iso1;
-
- /* Look for a mapping for a simple 8-bit encoding. */
- for (i = 0; maps[i].name; i++)
- if (!ascii_strcasecmp(code, maps[i].name)) {
- if (!maps[i].charset) {
- maps[i].charset = malloc(sizeof(struct charset));
- if (maps[i].charset) {
- struct map *map = malloc(sizeof(struct map));
- if (!map) {
- free(maps[i].charset);
- maps[i].charset = 0;
- }
- else {
- maps[i].charset->max = 1;
- maps[i].charset->mbtowc = &mbtowc_8bit;
- maps[i].charset->wctomb = &wctomb_8bit;
- maps[i].charset->map = map;
- map->from = maps[i].map;
- map->to = 0; /* inverse mapping is created when required */
- }
- }
- }
- return maps[i].charset;
- }
-
- return 0;
-}
-
-/*
- * Function to convert a buffer from one encoding to another.
- * Invalid bytes are replaced by '#', and characters that are
- * not available in the target encoding are replaced by '?'.
- * Each of TO and TOLEN may be zero, if the result is not needed.
- * The output buffer is null-terminated, so it is all right to
- * use charset_convert(fromcode, tocode, s, strlen(s), &t, 0).
- */
-
-int charset_convert(const char *fromcode, const char *tocode,
- const char *from, size_t fromlen,
- char **to, size_t *tolen)
-{
- int ret = 0;
- struct charset *charset1, *charset2;
- char *tobuf, *p, *newbuf;
- int i, j, wc;
-
- charset1 = charset_find(fromcode);
- charset2 = charset_find(tocode);
- if (!charset1 || !charset2 )
- return -1;
-
- tobuf = safe_malloc_mul2add_(fromlen, /*times*/charset2->max, /*+*/1);
- if (!tobuf)
- return -2;
-
- for (p = tobuf; fromlen; from += i, fromlen -= i, p += j) {
- i = charset_mbtowc(charset1, &wc, from, fromlen);
- if (!i)
- i = 1;
- else if (i == -1) {
- i = 1;
- wc = '#';
- ret = 2;
- }
- j = charset_wctomb(charset2, p, wc);
- if (j == -1) {
- if (!ret)
- ret = 1;
- j = charset_wctomb(charset2, p, '?');
- if (j == -1)
- j = 0;
- }
- }
-
- if (tolen)
- *tolen = p - tobuf;
- *p++ = '\0';
- if (to) {
- newbuf = realloc(tobuf, p - tobuf);
- *to = newbuf ? newbuf : tobuf;
- }
- else
- free(tobuf);
-
- return ret;
-}
-
-#endif /* USE_CHARSET_ICONV */
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdlib.h>
-
-/*
- * These functions are like the C library's mbtowc() and wctomb(),
- * but instead of depending on the locale they always work in UTF-8,
- * and they use int instead of wchar_t.
- */
-
-int utf8_mbtowc(int *pwc, const char *s, size_t n);
-int utf8_wctomb(char *s, int wc);
-
-/*
- * This is an object-oriented version of mbtowc() and wctomb().
- * The caller first uses charset_find() to get a pointer to struct
- * charset, then uses the mbtowc() and wctomb() methods on it.
- * The function charset_max() gives the maximum length of a
- * multibyte character in that encoding.
- * This API is only appropriate for stateless encodings like UTF-8
- * or ISO-8859-3, but I have no intention of implementing anything
- * other than UTF-8 and 8-bit encodings.
- *
- * MINOR BUG: If there is no memory charset_find() may return 0 and
- * there is no way to distinguish this case from an unknown encoding.
- */
-
-struct charset;
-
-struct charset *charset_find(const char *code);
-
-int charset_mbtowc(struct charset *charset, int *pwc, const char *s, size_t n);
-int charset_wctomb(struct charset *charset, char *s, int wc);
-int charset_max(struct charset *charset);
-
-/*
- * Function to convert a buffer from one encoding to another.
- * Invalid bytes are replaced by '#', and characters that are
- * not available in the target encoding are replaced by '?'.
- * Each of TO and TOLEN may be zero if the result is not wanted.
- * The input or output may contain null bytes, but the output
- * buffer is also null-terminated, so it is all right to
- * use charset_convert(fromcode, tocode, s, strlen(s), &t, 0).
- *
- * Return value:
- *
- * -2 : memory allocation failed
- * -1 : unknown encoding
- * 0 : data was converted exactly
- * 1 : valid data was converted approximately (using '?')
- * 2 : input was invalid (but still converted, using '#')
- */
-
-int charset_convert(const char *fromcode, const char *tocode,
- const char *from, size_t fromlen,
- char **to, size_t *tolen);
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <assert.h>
-#include <string.h>
-
-#include "charset.h"
-
-void test_any(struct charset *charset)
-{
- int wc;
- char s[2];
-
- assert(charset);
-
- /* Decoder */
-
- assert(charset_mbtowc(charset, 0, 0, 0) == 0);
- assert(charset_mbtowc(charset, 0, 0, 1) == 0);
- assert(charset_mbtowc(charset, 0, (char *)(-1), 0) == 0);
-
- assert(charset_mbtowc(charset, 0, "a", 0) == 0);
- assert(charset_mbtowc(charset, 0, "", 1) == 0);
- assert(charset_mbtowc(charset, 0, "b", 1) == 1);
- assert(charset_mbtowc(charset, 0, "", 2) == 0);
- assert(charset_mbtowc(charset, 0, "c", 2) == 1);
-
- wc = 'x';
- assert(charset_mbtowc(charset, &wc, "a", 0) == 0 && wc == 'x');
- assert(charset_mbtowc(charset, &wc, "", 1) == 0 && wc == 0);
- assert(charset_mbtowc(charset, &wc, "b", 1) == 1 && wc == 'b');
- assert(charset_mbtowc(charset, &wc, "", 2) == 0 && wc == 0);
- assert(charset_mbtowc(charset, &wc, "c", 2) == 1 && wc == 'c');
-
- /* Encoder */
-
- assert(charset_wctomb(charset, 0, 0) == 0);
-
- s[0] = s[1] = '.';
- assert(charset_wctomb(charset, s, 0) == 1 &&
- s[0] == '\0' && s[1] == '.');
- assert(charset_wctomb(charset, s, 'x') == 1 &&
- s[0] == 'x' && s[1] == '.');
-}
-
-void test_utf8()
-{
- struct charset *charset;
- int wc;
- char s[8];
-
- charset = charset_find("UTF-8");
- test_any(charset);
-
- /* Decoder */
- wc = 0;
- assert(charset_mbtowc(charset, &wc, "\177", 1) == 1 && wc == 127);
- assert(charset_mbtowc(charset, &wc, "\200", 2) == -1);
- assert(charset_mbtowc(charset, &wc, "\301\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\302\200", 1) == -1);
- assert(charset_mbtowc(charset, &wc, "\302\200", 2) == 2 && wc == 128);
- assert(charset_mbtowc(charset, &wc, "\302\200", 3) == 2 && wc == 128);
- assert(charset_mbtowc(charset, &wc, "\340\237\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\340\240\200", 9) == 3 &&
- wc == 1 << 11);
- assert(charset_mbtowc(charset, &wc, "\360\217\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\220\200\200", 9) == 4 &&
- wc == 1 << 16);
- assert(charset_mbtowc(charset, &wc, "\370\207\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\370\210\200\200\200", 9) == 5 &&
- wc == 1 << 21);
- assert(charset_mbtowc(charset, &wc, "\374\203\277\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\374\204\200\200\200\200", 9) == 6 &&
- wc == 1 << 26);
- assert(charset_mbtowc(charset, &wc, "\375\277\277\277\277\277", 9) == 6 &&
- wc == 0x7fffffff);
-
- assert(charset_mbtowc(charset, &wc, "\302\000", 2) == -1);
- assert(charset_mbtowc(charset, &wc, "\302\300", 2) == -1);
- assert(charset_mbtowc(charset, &wc, "\340\040\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\340\340\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\340\240\000", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\340\240\300", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\020\200\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\320\200\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\220\000\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\220\300\200", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\220\200\000", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\360\220\200\300", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\077\277\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\377\277\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\077\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\377\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\277\277\077\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\277\277\377\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\277\277\277\077", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\375\277\277\277\277\377", 9) == -1);
-
- assert(charset_mbtowc(charset, &wc, "\376\277\277\277\277\277", 9) == -1);
- assert(charset_mbtowc(charset, &wc, "\377\277\277\277\277\277", 9) == -1);
-
- /* Encoder */
- safe_strncpy(s, ".......", sizeof(s));
- assert(charset_wctomb(charset, s, 1 << 31) == -1 &&
- !strcmp(s, "......."));
- assert(charset_wctomb(charset, s, 127) == 1 &&
- !strcmp(s, "\177......"));
- assert(charset_wctomb(charset, s, 128) == 2 &&
- !strcmp(s, "\302\200....."));
- assert(charset_wctomb(charset, s, 0x7ff) == 2 &&
- !strcmp(s, "\337\277....."));
- assert(charset_wctomb(charset, s, 0x800) == 3 &&
- !strcmp(s, "\340\240\200...."));
- assert(charset_wctomb(charset, s, 0xffff) == 3 &&
- !strcmp(s, "\357\277\277...."));
- assert(charset_wctomb(charset, s, 0x10000) == 4 &&
- !strcmp(s, "\360\220\200\200..."));
- assert(charset_wctomb(charset, s, 0x1fffff) == 4 &&
- !strcmp(s, "\367\277\277\277..."));
- assert(charset_wctomb(charset, s, 0x200000) == 5 &&
- !strcmp(s, "\370\210\200\200\200.."));
- assert(charset_wctomb(charset, s, 0x3ffffff) == 5 &&
- !strcmp(s, "\373\277\277\277\277.."));
- assert(charset_wctomb(charset, s, 0x4000000) == 6 &&
- !strcmp(s, "\374\204\200\200\200\200."));
- assert(charset_wctomb(charset, s, 0x7fffffff) == 6 &&
- !strcmp(s, "\375\277\277\277\277\277."));
-}
-
-void test_ascii()
-{
- struct charset *charset;
- int wc;
- char s[3];
-
- charset = charset_find("us-ascii");
- test_any(charset);
-
- /* Decoder */
- wc = 0;
- assert(charset_mbtowc(charset, &wc, "\177", 2) == 1 && wc == 127);
- assert(charset_mbtowc(charset, &wc, "\200", 2) == -1);
-
- /* Encoder */
- safe_strncpy(s, "..", sizeof(s));
- assert(charset_wctomb(charset, s, 256) == -1 && !strcmp(s, ".."));
- assert(charset_wctomb(charset, s, 255) == -1);
- assert(charset_wctomb(charset, s, 128) == -1);
- assert(charset_wctomb(charset, s, 127) == 1 && !strcmp(s, "\177."));
-}
-
-void test_iso1()
-{
- struct charset *charset;
- int wc;
- char s[3];
-
- charset = charset_find("iso-8859-1");
- test_any(charset);
-
- /* Decoder */
- wc = 0;
- assert(charset_mbtowc(charset, &wc, "\302\200", 9) == 1 && wc == 0xc2);
-
- /* Encoder */
- safe_strncpy(s, "..", sizeof(s));
- assert(charset_wctomb(charset, s, 256) == -1 && !strcmp(s, ".."));
- assert(charset_wctomb(charset, s, 255) == 1 && !strcmp(s, "\377."));
- assert(charset_wctomb(charset, s, 128) == 1 && !strcmp(s, "\200."));
-}
-
-void test_iso2()
-{
- struct charset *charset;
- int wc;
- char s[3];
-
- charset = charset_find("iso-8859-2");
- test_any(charset);
-
- /* Decoder */
- wc = 0;
- assert(charset_mbtowc(charset, &wc, "\302\200", 9) == 1 && wc == 0xc2);
- assert(charset_mbtowc(charset, &wc, "\377", 2) == 1 && wc == 0x2d9);
-
- /* Encoder */
- safe_strncpy(s, "..", sizeof(s));
- assert(charset_wctomb(charset, s, 256) == -1 && !strcmp(s, ".."));
- assert(charset_wctomb(charset, s, 255) == -1 && !strcmp(s, ".."));
- assert(charset_wctomb(charset, s, 258) == 1 && !strcmp(s, "\303."));
- assert(charset_wctomb(charset, s, 128) == 1 && !strcmp(s, "\200."));
-}
-
-void test_convert()
-{
- const char *p;
- char *q, *r;
- char s[256];
- size_t n, n2;
- int i;
-
- p = "\000x\302\200\375\277\277\277\277\277";
- assert(charset_convert("UTF-8", "UTF-8", p, 10, &q, &n) == 0 &&
- n == 10 && !strcmp(p, q));
- assert(charset_convert("UTF-8", "UTF-8", "x\301\277y", 4, &q, &n) == 2 &&
- n == 4 && !strcmp(q, "x##y"));
- assert(charset_convert("UTF-8", "UTF-8", "x\301\277y", 4, 0, &n) == 2 &&
- n == 4);
- assert(charset_convert("UTF-8", "UTF-8", "x\301\277y", 4, &q, 0) == 2 &&
- !strcmp(q, "x##y"));
- assert(charset_convert("UTF-8", "iso-8859-1",
- "\302\200\304\200x", 5, &q, &n) == 1 &&
- n == 3 && !strcmp(q, "\200?x"));
- assert(charset_convert("iso-8859-1", "UTF-8",
- "\000\200\377", 3, &q, &n) == 0 &&
- n == 5 && !memcmp(q, "\000\302\200\303\277", 5));
- assert(charset_convert("iso-8859-1", "iso-8859-1",
- "\000\200\377", 3, &q, &n) == 0 &&
- n == 3 && !memcmp(q, "\000\200\377", 3));
-
- assert(charset_convert("iso-8859-2", "utf-8", "\300", 1, &q, &n) == 0 &&
- n == 2 && !strcmp(q, "\305\224"));
- assert(charset_convert("utf-8", "iso-8859-2", "\305\224", 2, &q, &n) == 0 &&
- n == 1 && !strcmp(q, "\300"));
-
- for (i = 0; i < 256; i++)
- s[i] = i;
-
- assert(charset_convert("iso-8859-2", "utf-8", s, 256, &q, &n) == 0);
- assert(charset_convert("utf-8", "iso-8859-2", q, n, &r, &n2) == 0);
- assert(n2 == 256 && !memcmp(r, s, n2));
-}
-
-int main()
-{
- test_utf8();
- test_ascii();
- test_iso1();
- test_iso2();
-
- test_convert();
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if !defined _WIN32 && defined HAVE_ICONV
-
-#include <assert.h>
-#include <errno.h>
-#include <iconv.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "iconvert.h"
-#include "share/alloc.h"
-#include "share/safe_str.h"
-
-/*
- * Convert data from one encoding to another. Return:
- *
- * -2 : memory allocation failed
- * -1 : unknown encoding
- * 0 : data was converted exactly
- * 1 : data was converted inexactly
- * 2 : data was invalid (but still converted)
- *
- * We convert in two steps, via UTF-8, as this is the only
- * reliable way of distinguishing between invalid input
- * and valid input which iconv refuses to transliterate.
- * We convert from UTF-8 twice, because we have no way of
- * knowing whether the conversion was exact if iconv returns
- * E2BIG (due to a bug in the specification of iconv).
- * An alternative approach is to assume that the output of
- * iconv is never more than 4 times as long as the input,
- * but I prefer to avoid that assumption if possible.
- */
-
-int iconvert(const char *fromcode, const char *tocode,
- const char *from, size_t fromlen,
- char **to, size_t *tolen)
-{
- int ret = 0;
- iconv_t cd1, cd2;
- char *ib;
- char *ob;
- char *utfbuf = 0, *outbuf, *newbuf;
- size_t utflen, outlen, ibl, obl, k;
- char tbuf[2048];
-
- cd1 = iconv_open("UTF-8", fromcode);
- if (cd1 == (iconv_t)(-1))
- return -1;
-
- cd2 = (iconv_t)(-1);
- /* Don't use strcasecmp() as it's locale-dependent. */
- if (!strchr("Uu", tocode[0]) ||
- !strchr("Tt", tocode[1]) ||
- !strchr("Ff", tocode[2]) ||
- tocode[3] != '-' ||
- tocode[4] != '8' ||
- tocode[5] != '\0') {
- char *tocode1;
- size_t dest_len = strlen(tocode) + 11;
- /*
- * Try using this non-standard feature of glibc and libiconv.
- * This is deliberately not a config option as people often
- * change their iconv library without rebuilding applications.
- */
- tocode1 = safe_malloc_(dest_len);
- if (!tocode1)
- goto fail;
-
- safe_strncpy(tocode1, tocode, dest_len);
- safe_strncat(tocode1, "//TRANSLIT", dest_len);
- cd2 = iconv_open(tocode1, "UTF-8");
- free(tocode1);
-
- if (cd2 == (iconv_t)(-1))
- cd2 = iconv_open(tocode, fromcode);
-
- if (cd2 == (iconv_t)(-1)) {
- iconv_close(cd1);
- return -1;
- }
- }
-
- utflen = 1; /*fromlen * 2 + 1; XXX */
- utfbuf = malloc(utflen);
- if (!utfbuf)
- goto fail;
-
- /* Convert to UTF-8 */
- ib = (char *)from;
- ibl = fromlen;
- ob = utfbuf;
- obl = utflen;
- for (;;) {
- k = iconv(cd1, &ib, &ibl, &ob, &obl);
- assert((!k && !ibl) ||
- (k == (size_t)(-1) && errno == E2BIG && ibl && obl < 6) ||
- (k == (size_t)(-1) &&
- (errno == EILSEQ || errno == EINVAL) && ibl));
- if (!ibl)
- break;
- if (obl < 6) {
- /* Enlarge the buffer */
- if(utflen*2 < utflen) /* overflow check */
- goto fail;
- utflen *= 2;
- newbuf = realloc(utfbuf, utflen);
- if (!newbuf)
- goto fail;
- ob = (ob - utfbuf) + newbuf;
- obl = utflen - (ob - newbuf);
- utfbuf = newbuf;
- }
- else {
- /* Invalid input */
- ib++, ibl--;
- *ob++ = '#', obl--;
- ret = 2;
- iconv(cd1, 0, 0, 0, 0);
- }
- }
-
- if (cd2 == (iconv_t)(-1)) {
- /* The target encoding was UTF-8 */
- if (tolen)
- *tolen = ob - utfbuf;
- if (!to) {
- free(utfbuf);
- iconv_close(cd1);
- return ret;
- }
- newbuf = safe_realloc_add_2op_(utfbuf, (ob - utfbuf), /*+*/1);
- if (!newbuf)
- goto fail;
- ob = (ob - utfbuf) + newbuf;
- *ob = '\0';
- *to = newbuf;
- iconv_close(cd1);
- return ret;
- }
-
- /* Truncate the buffer to be tidy */
- utflen = ob - utfbuf;
- newbuf = realloc(utfbuf, utflen);
- if (!newbuf)
- goto fail;
- utfbuf = newbuf;
-
- /* Convert from UTF-8 to discover how long the output is */
- outlen = 0;
- ib = utfbuf;
- ibl = utflen;
- while (ibl) {
- ob = tbuf;
- obl = sizeof(tbuf);
- k = iconv(cd2, &ib, &ibl, &ob, &obl);
- assert((k != (size_t)(-1) && !ibl) ||
- (k == (size_t)(-1) && errno == E2BIG && ibl) ||
- (k == (size_t)(-1) && errno == EILSEQ && ibl));
- if (ibl && !(k == (size_t)(-1) && errno == E2BIG)) {
- /* Replace one character */
- char *tb = "?";
- size_t tbl = 1;
-
- outlen += ob - tbuf;
- ob = tbuf;
- obl = sizeof(tbuf);
- k = iconv(cd2, &tb, &tbl, &ob, &obl);
- assert((!k && !tbl) ||
- (k == (size_t)(-1) && errno == EILSEQ && tbl));
- for (++ib, --ibl; ibl && (*ib & 0x80); ib++, ibl--)
- ;
- }
- outlen += ob - tbuf;
- }
- ob = tbuf;
- obl = sizeof(tbuf);
- k = iconv(cd2, 0, 0, &ob, &obl);
- assert(!k);
- outlen += ob - tbuf;
-
- /* Convert from UTF-8 for real */
- outbuf = safe_malloc_add_2op_(outlen, /*+*/1);
- if (!outbuf)
- goto fail;
- ib = utfbuf;
- ibl = utflen;
- ob = outbuf;
- obl = outlen;
- while (ibl) {
- k = iconv(cd2, &ib, &ibl, &ob, &obl);
- assert((k != (size_t)(-1) && !ibl) ||
- (k == (size_t)(-1) && errno == EILSEQ && ibl));
- if (k && !ret)
- ret = 1;
- if (ibl && !(k == (size_t)(-1) && errno == E2BIG)) {
- /* Replace one character */
- char *tb = "?";
- size_t tbl = 1;
-
- k = iconv(cd2, &tb, &tbl, &ob, &obl);
- assert((!k && !tbl) ||
- (k == (size_t)(-1) && errno == EILSEQ && tbl));
- for (++ib, --ibl; ibl && (*ib & 0x80); ib++, ibl--)
- ;
- }
- }
- k = iconv(cd2, 0, 0, &ob, &obl);
- assert(!k);
- assert(!obl);
- *ob = '\0';
-
- free(utfbuf);
- iconv_close(cd1);
- iconv_close(cd2);
- if (tolen)
- *tolen = outlen;
- if (!to) {
- free(outbuf);
- return ret;
- }
- *to = outbuf;
- return ret;
-
- fail:
- if(0 != utfbuf)
- free(utfbuf);
- iconv_close(cd1);
- if (cd2 != (iconv_t)(-1))
- iconv_close(cd2);
- return -2;
-}
-
-#endif /* HAVE_ICONV */
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#ifdef HAVE_ICONV
-
-/*
- * Convert data from one encoding to another. Return:
- *
- * -2 : memory allocation failed
- * -1 : unknown encoding
- * 0 : data was converted exactly
- * 1 : data was converted inexactly
- * 2 : data was invalid (but still converted)
- *
- * We convert in two steps, via UTF-8, as this is the only
- * reliable way of distinguishing between invalid input
- * and valid input which iconv refuses to transliterate.
- * We convert from UTF-8 twice, because we have no way of
- * knowing whether the conversion was exact if iconv returns
- * E2BIG (due to a bug in the specification of iconv).
- * An alternative approach is to assume that the output of
- * iconv is never more than 4 times as long as the input,
- * but I prefer to avoid that assumption if possible.
- */
-
-int iconvert(const char *fromcode, const char *tocode,
- const char *from, size_t fromlen,
- char **to, size_t *tolen) ;
-
-#endif /* HAVE_ICONV */
+++ /dev/null
-/*
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <errno.h>
-#include <iconv.h>
-#include <stdio.h>
-
-int main(int argc, char *argv[])
-{
- iconv_t cd;
- const char *ib;
- char *ob;
- size_t ibl, obl, k;
- unsigned char c, buf[4];
- int i, wc;
-
- if (argc != 2) {
- printf("Usage: %s ENCODING\n", argv[0]);
- printf("Output a charset map for the 8-bit ENCODING.\n");
- return 1;
- }
-
- cd = iconv_open("UCS-4", argv[1]);
- if (cd == (iconv_t)(-1)) {
- perror("iconv_open");
- return 1;
- }
-
- for (i = 0; i < 256; i++) {
- c = i;
- ib = &c;
- ibl = 1;
- ob = buf;
- obl = 4;
- k = iconv(cd, &ib, &ibl, &ob, &obl);
- if (!k && !ibl && !obl) {
- wc = (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3];
- if (wc >= 0xffff) {
- printf("Dodgy value.\n");
- return 1;
- }
- }
- else if (k == (size_t)(-1) && errno == EILSEQ)
- wc = 0xffff;
- else {
- printf("Non-standard iconv.\n");
- return 1;
- }
-
- if (i % 8 == 0)
- printf(" ");
- printf("0x%04x", wc);
- if (i == 255)
- printf("\n");
- else if (i % 8 == 7)
- printf(",\n");
- else
- printf(", ");
- }
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2001 Peter Harris <peter.harris@hummingbird.com>
- * Copyright (C) 2001 Edmund Grimley Evans <edmundo@rano.org>
- *
- * Buffer overflow checking added: Josh Coalson, 9/9/2007
- *
- * Win32 part rewritten: lvqcl, 2/2/2016
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/*
- * Convert a string between UTF-8 and the locale's charset.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdlib.h>
-
-#include "share/alloc.h"
-#include "share/utf8.h"
-
-#ifdef _WIN32
-
-#include <windows.h>
-
-int utf8_encode(const char *from, char **to)
-{
- wchar_t *unicode = NULL;
- char *utf8 = NULL;
- int ret = -1;
-
- do {
- int len;
-
- len = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from, -1, NULL, 0);
- if(len == 0) break;
-
- unicode = (wchar_t*) safe_malloc_mul_2op_((size_t)len, sizeof(wchar_t));
- if(unicode == NULL) break;
-
- len = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from, -1, unicode, len);
- if(len == 0) break;
-
- len = WideCharToMultiByte(CP_UTF8, 0, unicode, -1, NULL, 0, NULL, NULL);
- if(len == 0) break;
-
- utf8 = (char*) safe_malloc_mul_2op_((size_t)len, sizeof(char));
- if(utf8 == NULL) break;
-
- len = WideCharToMultiByte(CP_UTF8, 0, unicode, -1, utf8, len, NULL, NULL);
- if(len == 0) break;
-
- ret = 0;
-
- } while(0);
-
- free(unicode);
-
- if(ret == 0) {
- *to = utf8;
- } else {
- free(utf8);
- *to = NULL;
- }
-
- return ret;
-}
-
-int utf8_decode(const char *from, char **to)
-{
- wchar_t *unicode = NULL;
- char *acp = NULL;
- int ret = -1;
-
- do {
- int len;
-
- len = MultiByteToWideChar(CP_UTF8, 0, from, -1, NULL, 0);
- if(len == 0) break;
-
- unicode = (wchar_t*) safe_malloc_mul_2op_((size_t)len, sizeof(wchar_t));
- if(unicode == NULL) break;
-
- len = MultiByteToWideChar(CP_UTF8, 0, from, -1, unicode, len);
- if(len == 0) break;
-
- len = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, unicode, -1, NULL, 0, NULL, NULL);
- if(len == 0) break;
-
- acp = (char*) safe_malloc_mul_2op_((size_t)len, sizeof(char));
- if(acp == NULL) break;
-
- len = WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, unicode, -1, acp, len, NULL, NULL);
- if(len == 0) break;
-
- ret = 0;
-
- } while(0);
-
- free(unicode);
-
- if(ret == 0) {
- *to = acp;
- } else {
- free(acp);
- *to = NULL;
- }
-
- return ret;
-}
-
-#else /* End win32. Rest is for real operating systems */
-
-
-#ifdef HAVE_LANGINFO_CODESET
-#include <langinfo.h>
-#endif
-
-#include <string.h>
-
-#include "share/safe_str.h"
-#include "iconvert.h"
-#include "charset.h"
-
-static const char *current_charset(void)
-{
- const char *c = 0;
-#ifdef HAVE_LANGINFO_CODESET
- c = nl_langinfo(CODESET);
-#endif
-
- if (!c)
- c = getenv("CHARSET");
-
- return c? c : "US-ASCII";
-}
-
-static int convert_buffer(const char *fromcode, const char *tocode,
- const char *from, size_t fromlen,
- char **to, size_t *tolen)
-{
- int ret = -1;
-
-#ifdef HAVE_ICONV
- ret = iconvert(fromcode, tocode, from, fromlen, to, tolen);
- if (ret != -1)
- return ret;
-#endif
-
-#ifndef HAVE_ICONV /* should be ifdef USE_CHARSET_CONVERT */
- ret = charset_convert(fromcode, tocode, from, fromlen, to, tolen);
- if (ret != -1)
- return ret;
-#endif
-
- return ret;
-}
-
-static int convert_string(const char *fromcode, const char *tocode,
- const char *from, char **to, char replace)
-{
- int ret;
- size_t fromlen;
- char *s;
-
- fromlen = strlen(from);
- ret = convert_buffer(fromcode, tocode, from, fromlen, to, 0);
- if (ret == -2)
- return -1;
- if (ret != -1)
- return ret;
-
- s = safe_malloc_add_2op_(fromlen, /*+*/1);
- if (!s)
- return -1;
- safe_strncpy(s, from, fromlen + 1);
- *to = s;
- for (; *s; s++)
- if (*s & ~0x7f)
- *s = replace;
- return 3;
-}
-
-int utf8_encode(const char *from, char **to)
-{
- return convert_string(current_charset(), "UTF-8", from, to, '#');
-}
-
-int utf8_decode(const char *from, char **to)
-{
- return convert_string("UTF-8", current_charset(), from, to, '?');
-}
-
-#endif
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8.00"\r
- Name="utf8_static"\r
- ProjectGUID="{4cefbc92-c215-11db-8314-0800200c9a66}"\r
- RootNamespace="utf8_static"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;FLAC__NO_DLL;DEBUG"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- EnableIntrinsicFunctions="true"\r
- FavorSizeOrSpeed="1"\r
- OmitFramePointers="true"\r
- WholeProgramOptimization="true"\r
- AdditionalIncludeDirectories=".\include;..\..\..\include"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_LIB;FLAC__NO_DLL"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- CompileAs="0"\r
- DisableSpecificWarnings="4267;4996"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Header Files"\r
- Filter="h;hpp;hxx;hm;inl;inc;xsd"\r
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"\r
- >\r
- </Filter>\r
- <Filter\r
- Name="Public Header Files"\r
- >\r
- <File\r
- RelativePath="..\..\..\include\share\utf8.h"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"\r
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
- RelativePath=".\utf8.c"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
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-#
-# GNU makefile
-#
-
-topdir = ../../..
-
-ifeq ($(OS),Darwin)
- EXPLICIT_LIBS = $(libdir)/libFLAC.a $(OGG_EXPLICIT_LIBS) -lm
-else
- LIBS = -lFLAC $(OGG_LIBS) -lm
-endif
-
-LIB_NAME = libwin_utf8_io
-INCLUDES = -I$(topdir)/include
-
-SRCS_C = \
- win_utf8_io.c
-
-include $(topdir)/build/lib.mk
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
+++ /dev/null
-/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2013-2016 Xiph.Org Foundation
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of the Xiph.org Foundation nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <windows.h>
-#include "share/win_utf8_io.h"
-#include "share/windows_unicode_filenames.h"
-
-#define UTF8_BUFFER_SIZE 32768
-
-static int local_vsnprintf(char *str, size_t size, const char *fmt, va_list va)
-{
- int rc;
-
-#if defined _MSC_VER
- if (size == 0)
- return 1024;
- rc = vsnprintf_s(str, size, _TRUNCATE, fmt, va);
- if (rc < 0)
- rc = size - 1;
-#elif defined __MINGW32__
- rc = __mingw_vsnprintf(str, size, fmt, va);
-#else
- rc = vsnprintf(str, size, fmt, va);
-#endif
-
- return rc;
-}
-
-/* convert WCHAR stored Unicode string to UTF-8. Caller is responsible for freeing memory */
-static char *utf8_from_wchar(const wchar_t *wstr)
-{
- char *utf8str;
- int len;
-
- if (!wstr)
- return NULL;
- if ((len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL)) == 0)
- return NULL;
- if ((utf8str = (char *)malloc(len)) == NULL)
- return NULL;
- if (WideCharToMultiByte(CP_UTF8, 0, wstr, -1, utf8str, len, NULL, NULL) == 0) {
- free(utf8str);
- utf8str = NULL;
- }
-
- return utf8str;
-}
-
-/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
-static wchar_t *wchar_from_utf8(const char *str)
-{
- wchar_t *widestr;
- int len;
-
- if (!str)
- return NULL;
- if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
- return NULL;
- if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
- return NULL;
- if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
- free(widestr);
- widestr = NULL;
- }
-
- return widestr;
-}
-
-/* retrieve WCHAR commandline, expand wildcards and convert everything to UTF-8 */
-int get_utf8_argv(int *argc, char ***argv)
-{
- typedef int (__cdecl *wgetmainargs_t)(int*, wchar_t***, wchar_t***, int, int*);
- wgetmainargs_t wgetmainargs;
- HMODULE handle;
- int wargc;
- wchar_t **wargv;
- wchar_t **wenv;
- char **utf8argv;
- int ret, i;
-
- if ((handle = LoadLibrary("msvcrt.dll")) == NULL) return 1;
- if ((wgetmainargs = (wgetmainargs_t)GetProcAddress(handle, "__wgetmainargs")) == NULL) {
- FreeLibrary(handle);
- return 1;
- }
- i = 0;
- /* when the 4th argument is 1, __wgetmainargs expands wildcards but also erroneously converts \\?\c:\path\to\file.flac to \\file.flac */
- if (wgetmainargs(&wargc, &wargv, &wenv, 1, &i) != 0) {
- FreeLibrary(handle);
- return 1;
- }
- if ((utf8argv = (char **)calloc(wargc, sizeof(char*))) == NULL) {
- FreeLibrary(handle);
- return 1;
- }
-
- ret = 0;
- for (i=0; i<wargc; i++) {
- if ((utf8argv[i] = utf8_from_wchar(wargv[i])) == NULL) {
- ret = 1;
- break;
- }
- }
-
- FreeLibrary(handle); /* do not free it when wargv or wenv are still in use */
-
- if (ret == 0) {
- flac_set_utf8_filenames(true);
- *argc = wargc;
- *argv = utf8argv;
- } else {
- for (i=0; i<wargc; i++)
- free(utf8argv[i]);
- free(utf8argv);
- }
-
- return ret;
-}
-
-/* return number of characters in the UTF-8 string */
-size_t strlen_utf8(const char *str)
-{
- size_t len;
- len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0); /* includes terminating null */
- if (len != 0)
- return len-1;
- else
- return strlen(str);
-}
-
-/* get the console width in characters */
-int win_get_console_width(void)
-{
- int width = 80;
- CONSOLE_SCREEN_BUFFER_INFO csbi;
- HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
- if(hOut != INVALID_HANDLE_VALUE && hOut != NULL)
- if (GetConsoleScreenBufferInfo(hOut, &csbi) != 0)
- width = csbi.dwSize.X;
- return width;
-}
-
-/* print functions */
-
-static int wprint_console(FILE *stream, const wchar_t *text, size_t len)
-{
- DWORD out;
- int ret;
-
- do {
- if (stream == stdout) {
- HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
- if (hOut == INVALID_HANDLE_VALUE || hOut == NULL || GetFileType(hOut) != FILE_TYPE_CHAR)
- break;
- if (WriteConsoleW(hOut, text, len, &out, NULL) == 0)
- return -1;
- return out;
- }
- if (stream == stderr) {
- HANDLE hErr = GetStdHandle(STD_ERROR_HANDLE);
- if (hErr == INVALID_HANDLE_VALUE || hErr == NULL || GetFileType(hErr) != FILE_TYPE_CHAR)
- break;
- if (WriteConsoleW(hErr, text, len, &out, NULL) == 0)
- return -1;
- return out;
- }
- } while(0);
-
- ret = fputws(text, stream);
- if (ret < 0)
- return ret;
- return len;
-}
-
-int printf_utf8(const char *format, ...)
-{
- int ret;
- va_list argptr;
- va_start(argptr, format);
-
- ret = vfprintf_utf8(stdout, format, argptr);
-
- va_end(argptr);
-
- return ret;
-}
-
-int fprintf_utf8(FILE *stream, const char *format, ...)
-{
- int ret;
- va_list argptr;
- va_start(argptr, format);
-
- ret = vfprintf_utf8(stream, format, argptr);
-
- va_end(argptr);
-
- return ret;
-}
-
-int vfprintf_utf8(FILE *stream, const char *format, va_list argptr)
-{
- char *utmp = NULL;
- wchar_t *wout = NULL;
- int ret = -1;
-
- do {
- if (!(utmp = (char *)malloc(UTF8_BUFFER_SIZE))) break;
- if ((ret = local_vsnprintf(utmp, UTF8_BUFFER_SIZE, format, argptr)) <= 0) break;
- if (!(wout = wchar_from_utf8(utmp))) {
- ret = -1;
- break;
- }
- ret = wprint_console(stream, wout, wcslen(wout));
- } while(0);
-
- free(utmp);
- free(wout);
-
- return ret;
-}
+++ /dev/null
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-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8.00"\r
- Name="win_utf8_io_static"\r
- ProjectGUID="{4cefbe02-c215-11db-8314-0800200c9a66}"\r
- RootNamespace="win_utf8_io_static"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
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- />\r
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- Name="VCMIDLTool"\r
- />\r
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- />\r
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- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
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- EnableIntrinsicFunctions="true"\r
- FavorSizeOrSpeed="1"\r
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- </Configurations>\r
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- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
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- </Files>\r
- <Globals>\r
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+++ /dev/null
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- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
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\ No newline at end of file
+++ /dev/null
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup>\r
- <Filter Include="Public Header Files">\r
- <UniqueIdentifier>{6469e7f2-0837-4004-9f36-27d45ed62336}</UniqueIdentifier>\r
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- <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>\r
- <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>\r
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- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- </ItemGroup>\r
-</Project>
\ No newline at end of file
--- /dev/null
+Copyright Romain Tisserand
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * Neither the name of the <organization> nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- /dev/null
+# libchdr
+
+libchdr is a standalone library for reading MAME's CHDv1-v5 formats.
+
+The code is based off of MAME's old C codebase which read up to CHDv4 with OS-dependent features removed, and CHDv5 support backported from MAME's current C++ codebase.
+
+libchdr is licensed under the BSD 3-Clause (see [LICENSE.txt](LICENSE.txt)) and uses third party libraries that are each distributed under their own terms (see each library's license in [deps/](deps/)).
+++ /dev/null
-#ifndef __CORETYPES_H__
-#define __CORETYPES_H__
-
-#include <stdint.h>
-#include <stdio.h>
-
-#define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
-
-typedef uint64_t UINT64;
-typedef uint32_t UINT32;
-typedef uint16_t UINT16;
-typedef uint8_t UINT8;
-
-typedef int64_t INT64;
-typedef int32_t INT32;
-typedef int16_t INT16;
-typedef int8_t INT8;
-
-#define core_file FILE
-#define core_fopen(file) fopen(file, "rb")
-#define core_fseek fseek
-#define core_fread(fc, buff, len) fread(buff, 1, len, fc)
-#define core_fclose fclose
-#define core_ftell ftell
-static size_t core_fsize(core_file *f)
-{
- long rv;
- long p = ftell(f);
- fseek(f, 0, SEEK_END);
- rv = ftell(f);
- fseek(f, p, SEEK_SET);
- return rv;
-}
-
-#endif
+++ /dev/null
-/* license:BSD-3-Clause
- * copyright-holders:Aaron Giles
-***************************************************************************
-
- flac.c
-
- FLAC compression wrappers
-
-***************************************************************************/
-
-#include <assert.h>
-#include <string.h>
-#include "flac.h"
-
-/***************************************************************************
- * FLAC DECODER
- ***************************************************************************
- */
-
-static FLAC__StreamDecoderReadStatus flac_decoder_read_callback_static(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
-FLAC__StreamDecoderReadStatus flac_decoder_read_callback(void* client_data, FLAC__byte buffer[], size_t *bytes);
-static void flac_decoder_metadata_callback_static(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static FLAC__StreamDecoderTellStatus flac_decoder_tell_callback_static(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
-static FLAC__StreamDecoderWriteStatus flac_decoder_write_callback_static(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-FLAC__StreamDecoderWriteStatus flac_decoder_write_callback(void* client_data, const FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
-static void flac_decoder_error_callback_static(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-/* getters (valid after reset) */
-static uint32_t sample_rate(flac_decoder *decoder) { return decoder->sample_rate; }
-static uint8_t channels(flac_decoder *decoder) { return decoder->channels; }
-static uint8_t bits_per_sample(flac_decoder *decoder) { return decoder->bits_per_sample; }
-static uint32_t total_samples(flac_decoder *decoder) { return FLAC__stream_decoder_get_total_samples(decoder->decoder); }
-static FLAC__StreamDecoderState state(flac_decoder *decoder) { return FLAC__stream_decoder_get_state(decoder->decoder); }
-static const char *state_string(flac_decoder *decoder) { return FLAC__stream_decoder_get_resolved_state_string(decoder->decoder); }
-
-/*-------------------------------------------------
- * flac_decoder - constructor
- *-------------------------------------------------
- */
-
-void flac_decoder_init(flac_decoder *decoder)
-{
- decoder->decoder = FLAC__stream_decoder_new();
- decoder->sample_rate = 0;
- decoder->channels = 0;
- decoder->bits_per_sample = 0;
- decoder->compressed_offset = 0;
- decoder->compressed_start = NULL;
- decoder->compressed_length = 0;
- decoder->compressed2_start = NULL;
- decoder->compressed2_length = 0;
- decoder->uncompressed_offset = 0;
- decoder->uncompressed_length = 0;
- decoder->uncompressed_swap = 0;
-}
-
-/*-------------------------------------------------
- * flac_decoder - destructor
- *-------------------------------------------------
- */
-
-void flac_decoder_free(flac_decoder* decoder)
-{
- if ((decoder != NULL) && (decoder->decoder != NULL))
- FLAC__stream_decoder_delete(decoder->decoder);
-}
-
-/*-------------------------------------------------
- * reset - reset state with the original
- * parameters
- *-------------------------------------------------
- */
-
-static int flac_decoder_internal_reset(flac_decoder* decoder)
-{
- decoder->compressed_offset = 0;
- if (FLAC__stream_decoder_init_stream(decoder->decoder,
- &flac_decoder_read_callback_static,
- NULL,
- &flac_decoder_tell_callback_static,
- NULL,
- NULL,
- &flac_decoder_write_callback_static,
- &flac_decoder_metadata_callback_static,
- &flac_decoder_error_callback_static, decoder) != FLAC__STREAM_DECODER_INIT_STATUS_OK)
- return 0;
- return FLAC__stream_decoder_process_until_end_of_metadata(decoder->decoder);
-}
-
-/*-------------------------------------------------
- * reset - reset state with new memory parameters
- * and a custom-generated header
- *-------------------------------------------------
- */
-
-int flac_decoder_reset(flac_decoder* decoder, uint32_t sample_rate, uint8_t num_channels, uint32_t block_size, const void *buffer, uint32_t length)
-{
- /* modify the template header with our parameters */
- static const uint8_t s_header_template[0x2a] =
- {
- 0x66, 0x4C, 0x61, 0x43, /* +00: 'fLaC' stream header */
- 0x80, /* +04: metadata block type 0 (STREAMINFO), */
- /* flagged as last block */
- 0x00, 0x00, 0x22, /* +05: metadata block length = 0x22 */
- 0x00, 0x00, /* +08: minimum block size */
- 0x00, 0x00, /* +0A: maximum block size */
- 0x00, 0x00, 0x00, /* +0C: minimum frame size (0 == unknown) */
- 0x00, 0x00, 0x00, /* +0F: maximum frame size (0 == unknown) */
- 0x0A, 0xC4, 0x42, 0xF0, 0x00, 0x00, 0x00, 0x00, /* +12: sample rate (0x0ac44 == 44100), */
- /* numchannels (2), sample bits (16), */
- /* samples in stream (0 == unknown) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* +1A: MD5 signature (0 == none) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* +2A: start of stream data */
- };
- memcpy(decoder->custom_header, s_header_template, sizeof(s_header_template));
- decoder->custom_header[0x08] = decoder->custom_header[0x0a] = block_size >> 8;
- decoder->custom_header[0x09] = decoder->custom_header[0x0b] = block_size & 0xff;
- decoder->custom_header[0x12] = sample_rate >> 12;
- decoder->custom_header[0x13] = sample_rate >> 4;
- decoder->custom_header[0x14] = (sample_rate << 4) | ((num_channels - 1) << 1);
-
- /* configure the header ahead of the provided buffer */
- decoder->compressed_start = (const FLAC__byte *)(decoder->custom_header);
- decoder->compressed_length = sizeof(decoder->custom_header);
- decoder->compressed2_start = (const FLAC__byte *)(buffer);
- decoder->compressed2_length = length;
- return flac_decoder_internal_reset(decoder);
-}
-
-/*-------------------------------------------------
- * decode_interleaved - decode to an interleaved
- * sound stream
- *-------------------------------------------------
- */
-
-int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian)
-{
- /* configure the uncompressed buffer */
- memset(decoder->uncompressed_start, 0, sizeof(decoder->uncompressed_start));
- decoder->uncompressed_start[0] = samples;
- decoder->uncompressed_offset = 0;
- decoder->uncompressed_length = num_samples;
- decoder->uncompressed_swap = swap_endian;
-
- /* loop until we get everything we want */
- while (decoder->uncompressed_offset < decoder->uncompressed_length)
- if (!FLAC__stream_decoder_process_single(decoder->decoder))
- return 0;
- return 1;
-}
-
-#if 0
-/*-------------------------------------------------
- * decode - decode to an multiple independent
- * data streams
- *-------------------------------------------------
- */
-
-bool flac_decoder::decode(int16_t **samples, uint32_t num_samples, bool swap_endian)
-{
- /* make sure we don't have too many channels */
- int chans = channels();
- if (chans > ARRAY_LENGTH(m_uncompressed_start))
- return false;
-
- /* configure the uncompressed buffer */
- memset(m_uncompressed_start, 0, sizeof(m_uncompressed_start));
- for (int curchan = 0; curchan < chans; curchan++)
- m_uncompressed_start[curchan] = samples[curchan];
- m_uncompressed_offset = 0;
- m_uncompressed_length = num_samples;
- m_uncompressed_swap = swap_endian;
-
- /* loop until we get everything we want */
- while (m_uncompressed_offset < m_uncompressed_length)
- if (!FLAC__stream_decoder_process_single(m_decoder))
- return false;
- return true;
-}
-#endif
-
-/*-------------------------------------------------
- * finish - finish up the decode
- *-------------------------------------------------
- */
-
-uint32_t flac_decoder_finish(flac_decoder* decoder)
-{
- /* get the final decoding position and move forward */
- FLAC__uint64 position = 0;
- FLAC__stream_decoder_get_decode_position(decoder->decoder, &position);
- FLAC__stream_decoder_finish(decoder->decoder);
-
- /* adjust position if we provided the header */
- if (position == 0)
- return 0;
- if (decoder->compressed_start == (const FLAC__byte *)(decoder->custom_header))
- position -= decoder->compressed_length;
- return position;
-}
-
-/*-------------------------------------------------
- * read_callback - handle reads from the input
- * stream
- *-------------------------------------------------
- */
-
-#define MIN(x, y) ((x) < (y) ? (x) : (y))
-
-FLAC__StreamDecoderReadStatus flac_decoder_read_callback_static(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
-{
- return flac_decoder_read_callback(client_data, buffer, bytes);
-}
-
-FLAC__StreamDecoderReadStatus flac_decoder_read_callback(void* client_data, FLAC__byte buffer[], size_t *bytes)
-{
- flac_decoder* decoder = (flac_decoder*)client_data;
-
- uint32_t expected = *bytes;
-
- /* copy from primary buffer first */
- uint32_t outputpos = 0;
- if (outputpos < *bytes && decoder->compressed_offset < decoder->compressed_length)
- {
- uint32_t bytes_to_copy = MIN(*bytes - outputpos, decoder->compressed_length - decoder->compressed_offset);
- memcpy(&buffer[outputpos], decoder->compressed_start + decoder->compressed_offset, bytes_to_copy);
- outputpos += bytes_to_copy;
- decoder->compressed_offset += bytes_to_copy;
- }
-
- /* once we're out of that, copy from the secondary buffer */
- if (outputpos < *bytes && decoder->compressed_offset < decoder->compressed_length + decoder->compressed2_length)
- {
- uint32_t bytes_to_copy = MIN(*bytes - outputpos, decoder->compressed2_length - (decoder->compressed_offset - decoder->compressed_length));
- memcpy(&buffer[outputpos], decoder->compressed2_start + decoder->compressed_offset - decoder->compressed_length, bytes_to_copy);
- outputpos += bytes_to_copy;
- decoder->compressed_offset += bytes_to_copy;
- }
- *bytes = outputpos;
-
- /* return based on whether we ran out of data */
- return (*bytes < expected) ? FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM : FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
-}
-
-/*-------------------------------------------------
- * metadata_callback - handle STREAMINFO metadata
- *-------------------------------------------------
- */
-
-void flac_decoder_metadata_callback_static(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
-{
- flac_decoder *fldecoder;
- /* ignore all but STREAMINFO metadata */
- if (metadata->type != FLAC__METADATA_TYPE_STREAMINFO)
- return;
-
- /* parse out the data we care about */
- fldecoder = (flac_decoder *)(client_data);
- fldecoder->sample_rate = metadata->data.stream_info.sample_rate;
- fldecoder->bits_per_sample = metadata->data.stream_info.bits_per_sample;
- fldecoder->channels = metadata->data.stream_info.channels;
-}
-
-/*-------------------------------------------------
- * tell_callback - handle requests to find out
- * where in the input stream we are
- *-------------------------------------------------
- */
-
-FLAC__StreamDecoderTellStatus flac_decoder_tell_callback_static(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
-{
- *absolute_byte_offset = ((flac_decoder *)client_data)->compressed_offset;
- return FLAC__STREAM_DECODER_TELL_STATUS_OK;
-}
-
-/*-------------------------------------------------
- * write_callback - handle writes to the output
- * stream
- *-------------------------------------------------
- */
-
-FLAC__StreamDecoderWriteStatus flac_decoder_write_callback_static(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
-{
- return flac_decoder_write_callback(client_data, frame, buffer);
-}
-
-FLAC__StreamDecoderWriteStatus flac_decoder_write_callback(void *client_data, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
-{
- int sampnum, chan;
- int shift, blocksize;
- flac_decoder * decoder = (flac_decoder *)client_data;
-
- assert(frame->header.channels == channels(decoder));
-
- /* interleaved case */
- shift = decoder->uncompressed_swap ? 8 : 0;
- blocksize = frame->header.blocksize;
- if (decoder->uncompressed_start[1] == NULL)
- {
- int16_t *dest = decoder->uncompressed_start[0] + decoder->uncompressed_offset * frame->header.channels;
- for (sampnum = 0; sampnum < blocksize && decoder->uncompressed_offset < decoder->uncompressed_length; sampnum++, decoder->uncompressed_offset++)
- for (chan = 0; chan < frame->header.channels; chan++)
- *dest++ = (int16_t)((((uint16_t)buffer[chan][sampnum]) << shift) | (((uint16_t)buffer[chan][sampnum]) >> shift));
- }
-
- /* non-interleaved case */
- else
- {
- for (sampnum = 0; sampnum < blocksize && decoder->uncompressed_offset < decoder->uncompressed_length; sampnum++, decoder->uncompressed_offset++)
- for (chan = 0; chan < frame->header.channels; chan++)
- if (decoder->uncompressed_start[chan] != NULL)
- decoder->uncompressed_start[chan][decoder->uncompressed_offset] = (int16_t) ( (((uint16_t)(buffer[chan][sampnum])) << shift) | ( ((uint16_t)(buffer[chan][sampnum])) >> shift) );
- }
- return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
-}
-
-/**
- * @fn void flac_decoder::error_callback_static(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
- *
- * @brief -------------------------------------------------
- * error_callback - handle errors (ignore them)
- * -------------------------------------------------.
- *
- * @param decoder The decoder.
- * @param status The status.
- * @param [in,out] client_data If non-null, information describing the client.
- */
-
-void flac_decoder_error_callback_static(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
-}
--- /dev/null
+/*
+FLAC audio decoder. Choice of public domain or MIT-0. See license statements at the end of this file.
+dr_flac - v0.12.28 - 2021-02-21
+
+David Reid - mackron@gmail.com
+
+GitHub: https://github.com/mackron/dr_libs
+*/
+
+/*
+RELEASE NOTES - v0.12.0
+=======================
+Version 0.12.0 has breaking API changes including changes to the existing API and the removal of deprecated APIs.
+
+
+Improved Client-Defined Memory Allocation
+-----------------------------------------
+The main change with this release is the addition of a more flexible way of implementing custom memory allocation routines. The
+existing system of DRFLAC_MALLOC, DRFLAC_REALLOC and DRFLAC_FREE are still in place and will be used by default when no custom
+allocation callbacks are specified.
+
+To use the new system, you pass in a pointer to a drflac_allocation_callbacks object to drflac_open() and family, like this:
+
+ void* my_malloc(size_t sz, void* pUserData)
+ {
+ return malloc(sz);
+ }
+ void* my_realloc(void* p, size_t sz, void* pUserData)
+ {
+ return realloc(p, sz);
+ }
+ void my_free(void* p, void* pUserData)
+ {
+ free(p);
+ }
+
+ ...
+
+ drflac_allocation_callbacks allocationCallbacks;
+ allocationCallbacks.pUserData = &myData;
+ allocationCallbacks.onMalloc = my_malloc;
+ allocationCallbacks.onRealloc = my_realloc;
+ allocationCallbacks.onFree = my_free;
+ drflac* pFlac = drflac_open_file("my_file.flac", &allocationCallbacks);
+
+The advantage of this new system is that it allows you to specify user data which will be passed in to the allocation routines.
+
+Passing in null for the allocation callbacks object will cause dr_flac to use defaults which is the same as DRFLAC_MALLOC,
+DRFLAC_REALLOC and DRFLAC_FREE and the equivalent of how it worked in previous versions.
+
+Every API that opens a drflac object now takes this extra parameter. These include the following:
+
+ drflac_open()
+ drflac_open_relaxed()
+ drflac_open_with_metadata()
+ drflac_open_with_metadata_relaxed()
+ drflac_open_file()
+ drflac_open_file_with_metadata()
+ drflac_open_memory()
+ drflac_open_memory_with_metadata()
+ drflac_open_and_read_pcm_frames_s32()
+ drflac_open_and_read_pcm_frames_s16()
+ drflac_open_and_read_pcm_frames_f32()
+ drflac_open_file_and_read_pcm_frames_s32()
+ drflac_open_file_and_read_pcm_frames_s16()
+ drflac_open_file_and_read_pcm_frames_f32()
+ drflac_open_memory_and_read_pcm_frames_s32()
+ drflac_open_memory_and_read_pcm_frames_s16()
+ drflac_open_memory_and_read_pcm_frames_f32()
+
+
+
+Optimizations
+-------------
+Seeking performance has been greatly improved. A new binary search based seeking algorithm has been introduced which significantly
+improves performance over the brute force method which was used when no seek table was present. Seek table based seeking also takes
+advantage of the new binary search seeking system to further improve performance there as well. Note that this depends on CRC which
+means it will be disabled when DR_FLAC_NO_CRC is used.
+
+The SSE4.1 pipeline has been cleaned up and optimized. You should see some improvements with decoding speed of 24-bit files in
+particular. 16-bit streams should also see some improvement.
+
+drflac_read_pcm_frames_s16() has been optimized. Previously this sat on top of drflac_read_pcm_frames_s32() and performed it's s32
+to s16 conversion in a second pass. This is now all done in a single pass. This includes SSE2 and ARM NEON optimized paths.
+
+A minor optimization has been implemented for drflac_read_pcm_frames_s32(). This will now use an SSE2 optimized pipeline for stereo
+channel reconstruction which is the last part of the decoding process.
+
+The ARM build has seen a few improvements. The CLZ (count leading zeroes) and REV (byte swap) instructions are now used when
+compiling with GCC and Clang which is achieved using inline assembly. The CLZ instruction requires ARM architecture version 5 at
+compile time and the REV instruction requires ARM architecture version 6.
+
+An ARM NEON optimized pipeline has been implemented. To enable this you'll need to add -mfpu=neon to the command line when compiling.
+
+
+Removed APIs
+------------
+The following APIs were deprecated in version 0.11.0 and have been completely removed in version 0.12.0:
+
+ drflac_read_s32() -> drflac_read_pcm_frames_s32()
+ drflac_read_s16() -> drflac_read_pcm_frames_s16()
+ drflac_read_f32() -> drflac_read_pcm_frames_f32()
+ drflac_seek_to_sample() -> drflac_seek_to_pcm_frame()
+ drflac_open_and_decode_s32() -> drflac_open_and_read_pcm_frames_s32()
+ drflac_open_and_decode_s16() -> drflac_open_and_read_pcm_frames_s16()
+ drflac_open_and_decode_f32() -> drflac_open_and_read_pcm_frames_f32()
+ drflac_open_and_decode_file_s32() -> drflac_open_file_and_read_pcm_frames_s32()
+ drflac_open_and_decode_file_s16() -> drflac_open_file_and_read_pcm_frames_s16()
+ drflac_open_and_decode_file_f32() -> drflac_open_file_and_read_pcm_frames_f32()
+ drflac_open_and_decode_memory_s32() -> drflac_open_memory_and_read_pcm_frames_s32()
+ drflac_open_and_decode_memory_s16() -> drflac_open_memory_and_read_pcm_frames_s16()
+ drflac_open_and_decode_memory_f32() -> drflac_open_memroy_and_read_pcm_frames_f32()
+
+Prior versions of dr_flac operated on a per-sample basis whereas now it operates on PCM frames. The removed APIs all relate
+to the old per-sample APIs. You now need to use the "pcm_frame" versions.
+*/
+
+
+/*
+Introduction
+============
+dr_flac is a single file library. To use it, do something like the following in one .c file.
+
+ ```c
+ #define DR_FLAC_IMPLEMENTATION
+ #include "dr_flac.h"
+ ```
+
+You can then #include this file in other parts of the program as you would with any other header file. To decode audio data, do something like the following:
+
+ ```c
+ drflac* pFlac = drflac_open_file("MySong.flac", NULL);
+ if (pFlac == NULL) {
+ // Failed to open FLAC file
+ }
+
+ drflac_int32* pSamples = malloc(pFlac->totalPCMFrameCount * pFlac->channels * sizeof(drflac_int32));
+ drflac_uint64 numberOfInterleavedSamplesActuallyRead = drflac_read_pcm_frames_s32(pFlac, pFlac->totalPCMFrameCount, pSamples);
+ ```
+
+The drflac object represents the decoder. It is a transparent type so all the information you need, such as the number of channels and the bits per sample,
+should be directly accessible - just make sure you don't change their values. Samples are always output as interleaved signed 32-bit PCM. In the example above
+a native FLAC stream was opened, however dr_flac has seamless support for Ogg encapsulated FLAC streams as well.
+
+You do not need to decode the entire stream in one go - you just specify how many samples you'd like at any given time and the decoder will give you as many
+samples as it can, up to the amount requested. Later on when you need the next batch of samples, just call it again. Example:
+
+ ```c
+ while (drflac_read_pcm_frames_s32(pFlac, chunkSizeInPCMFrames, pChunkSamples) > 0) {
+ do_something();
+ }
+ ```
+
+You can seek to a specific PCM frame with `drflac_seek_to_pcm_frame()`.
+
+If you just want to quickly decode an entire FLAC file in one go you can do something like this:
+
+ ```c
+ unsigned int channels;
+ unsigned int sampleRate;
+ drflac_uint64 totalPCMFrameCount;
+ drflac_int32* pSampleData = drflac_open_file_and_read_pcm_frames_s32("MySong.flac", &channels, &sampleRate, &totalPCMFrameCount, NULL);
+ if (pSampleData == NULL) {
+ // Failed to open and decode FLAC file.
+ }
+
+ ...
+
+ drflac_free(pSampleData, NULL);
+ ```
+
+You can read samples as signed 16-bit integer and 32-bit floating-point PCM with the *_s16() and *_f32() family of APIs respectively, but note that these
+should be considered lossy.
+
+
+If you need access to metadata (album art, etc.), use `drflac_open_with_metadata()`, `drflac_open_file_with_metdata()` or `drflac_open_memory_with_metadata()`.
+The rationale for keeping these APIs separate is that they're slightly slower than the normal versions and also just a little bit harder to use. dr_flac
+reports metadata to the application through the use of a callback, and every metadata block is reported before `drflac_open_with_metdata()` returns.
+
+The main opening APIs (`drflac_open()`, etc.) will fail if the header is not present. The presents a problem in certain scenarios such as broadcast style
+streams or internet radio where the header may not be present because the user has started playback mid-stream. To handle this, use the relaxed APIs:
+
+ `drflac_open_relaxed()`
+ `drflac_open_with_metadata_relaxed()`
+
+It is not recommended to use these APIs for file based streams because a missing header would usually indicate a corrupt or perverse file. In addition, these
+APIs can take a long time to initialize because they may need to spend a lot of time finding the first frame.
+
+
+
+Build Options
+=============
+#define these options before including this file.
+
+#define DR_FLAC_NO_STDIO
+ Disable `drflac_open_file()` and family.
+
+#define DR_FLAC_NO_OGG
+ Disables support for Ogg/FLAC streams.
+
+#define DR_FLAC_BUFFER_SIZE <number>
+ Defines the size of the internal buffer to store data from onRead(). This buffer is used to reduce the number of calls back to the client for more data.
+ Larger values means more memory, but better performance. My tests show diminishing returns after about 4KB (which is the default). Consider reducing this if
+ you have a very efficient implementation of onRead(), or increase it if it's very inefficient. Must be a multiple of 8.
+
+#define DR_FLAC_NO_CRC
+ Disables CRC checks. This will offer a performance boost when CRC is unnecessary. This will disable binary search seeking. When seeking, the seek table will
+ be used if available. Otherwise the seek will be performed using brute force.
+
+#define DR_FLAC_NO_SIMD
+ Disables SIMD optimizations (SSE on x86/x64 architectures, NEON on ARM architectures). Use this if you are having compatibility issues with your compiler.
+
+
+
+Notes
+=====
+- dr_flac does not support changing the sample rate nor channel count mid stream.
+- dr_flac is not thread-safe, but its APIs can be called from any thread so long as you do your own synchronization.
+- When using Ogg encapsulation, a corrupted metadata block will result in `drflac_open_with_metadata()` and `drflac_open()` returning inconsistent samples due
+ to differences in corrupted stream recorvery logic between the two APIs.
+*/
+
+#ifndef dr_flac_h
+#define dr_flac_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DRFLAC_STRINGIFY(x) #x
+#define DRFLAC_XSTRINGIFY(x) DRFLAC_STRINGIFY(x)
+
+#define DRFLAC_VERSION_MAJOR 0
+#define DRFLAC_VERSION_MINOR 12
+#define DRFLAC_VERSION_REVISION 28
+#define DRFLAC_VERSION_STRING DRFLAC_XSTRINGIFY(DRFLAC_VERSION_MAJOR) "." DRFLAC_XSTRINGIFY(DRFLAC_VERSION_MINOR) "." DRFLAC_XSTRINGIFY(DRFLAC_VERSION_REVISION)
+
+#include <stddef.h> /* For size_t. */
+
+/* Sized types. */
+typedef signed char drflac_int8;
+typedef unsigned char drflac_uint8;
+typedef signed short drflac_int16;
+typedef unsigned short drflac_uint16;
+typedef signed int drflac_int32;
+typedef unsigned int drflac_uint32;
+#if defined(_MSC_VER)
+ typedef signed __int64 drflac_int64;
+ typedef unsigned __int64 drflac_uint64;
+#else
+ #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wlong-long"
+ #if defined(__clang__)
+ #pragma GCC diagnostic ignored "-Wc++11-long-long"
+ #endif
+ #endif
+ typedef signed long long drflac_int64;
+ typedef unsigned long long drflac_uint64;
+ #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
+ #pragma GCC diagnostic pop
+ #endif
+#endif
+#if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__)) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__)
+ typedef drflac_uint64 drflac_uintptr;
+#else
+ typedef drflac_uint32 drflac_uintptr;
+#endif
+typedef drflac_uint8 drflac_bool8;
+typedef drflac_uint32 drflac_bool32;
+#define DRFLAC_TRUE 1
+#define DRFLAC_FALSE 0
+
+#if !defined(DRFLAC_API)
+ #if defined(DRFLAC_DLL)
+ #if defined(_WIN32)
+ #define DRFLAC_DLL_IMPORT __declspec(dllimport)
+ #define DRFLAC_DLL_EXPORT __declspec(dllexport)
+ #define DRFLAC_DLL_PRIVATE static
+ #else
+ #if defined(__GNUC__) && __GNUC__ >= 4
+ #define DRFLAC_DLL_IMPORT __attribute__((visibility("default")))
+ #define DRFLAC_DLL_EXPORT __attribute__((visibility("default")))
+ #define DRFLAC_DLL_PRIVATE __attribute__((visibility("hidden")))
+ #else
+ #define DRFLAC_DLL_IMPORT
+ #define DRFLAC_DLL_EXPORT
+ #define DRFLAC_DLL_PRIVATE static
+ #endif
+ #endif
+
+ #if defined(DR_FLAC_IMPLEMENTATION) || defined(DRFLAC_IMPLEMENTATION)
+ #define DRFLAC_API DRFLAC_DLL_EXPORT
+ #else
+ #define DRFLAC_API DRFLAC_DLL_IMPORT
+ #endif
+ #define DRFLAC_PRIVATE DRFLAC_DLL_PRIVATE
+ #else
+ #define DRFLAC_API extern
+ #define DRFLAC_PRIVATE static
+ #endif
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER >= 1700 /* Visual Studio 2012 */
+ #define DRFLAC_DEPRECATED __declspec(deprecated)
+#elif (defined(__GNUC__) && __GNUC__ >= 4) /* GCC 4 */
+ #define DRFLAC_DEPRECATED __attribute__((deprecated))
+#elif defined(__has_feature) /* Clang */
+ #if __has_feature(attribute_deprecated)
+ #define DRFLAC_DEPRECATED __attribute__((deprecated))
+ #else
+ #define DRFLAC_DEPRECATED
+ #endif
+#else
+ #define DRFLAC_DEPRECATED
+#endif
+
+DRFLAC_API void drflac_version(drflac_uint32* pMajor, drflac_uint32* pMinor, drflac_uint32* pRevision);
+DRFLAC_API const char* drflac_version_string(void);
+
+/*
+As data is read from the client it is placed into an internal buffer for fast access. This controls the size of that buffer. Larger values means more speed,
+but also more memory. In my testing there is diminishing returns after about 4KB, but you can fiddle with this to suit your own needs. Must be a multiple of 8.
+*/
+#ifndef DR_FLAC_BUFFER_SIZE
+#define DR_FLAC_BUFFER_SIZE 4096
+#endif
+
+/* Check if we can enable 64-bit optimizations. */
+#if defined(_WIN64) || defined(_LP64) || defined(__LP64__)
+#define DRFLAC_64BIT
+#endif
+
+#ifdef DRFLAC_64BIT
+typedef drflac_uint64 drflac_cache_t;
+#else
+typedef drflac_uint32 drflac_cache_t;
+#endif
+
+/* The various metadata block types. */
+#define DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO 0
+#define DRFLAC_METADATA_BLOCK_TYPE_PADDING 1
+#define DRFLAC_METADATA_BLOCK_TYPE_APPLICATION 2
+#define DRFLAC_METADATA_BLOCK_TYPE_SEEKTABLE 3
+#define DRFLAC_METADATA_BLOCK_TYPE_VORBIS_COMMENT 4
+#define DRFLAC_METADATA_BLOCK_TYPE_CUESHEET 5
+#define DRFLAC_METADATA_BLOCK_TYPE_PICTURE 6
+#define DRFLAC_METADATA_BLOCK_TYPE_INVALID 127
+
+/* The various picture types specified in the PICTURE block. */
+#define DRFLAC_PICTURE_TYPE_OTHER 0
+#define DRFLAC_PICTURE_TYPE_FILE_ICON 1
+#define DRFLAC_PICTURE_TYPE_OTHER_FILE_ICON 2
+#define DRFLAC_PICTURE_TYPE_COVER_FRONT 3
+#define DRFLAC_PICTURE_TYPE_COVER_BACK 4
+#define DRFLAC_PICTURE_TYPE_LEAFLET_PAGE 5
+#define DRFLAC_PICTURE_TYPE_MEDIA 6
+#define DRFLAC_PICTURE_TYPE_LEAD_ARTIST 7
+#define DRFLAC_PICTURE_TYPE_ARTIST 8
+#define DRFLAC_PICTURE_TYPE_CONDUCTOR 9
+#define DRFLAC_PICTURE_TYPE_BAND 10
+#define DRFLAC_PICTURE_TYPE_COMPOSER 11
+#define DRFLAC_PICTURE_TYPE_LYRICIST 12
+#define DRFLAC_PICTURE_TYPE_RECORDING_LOCATION 13
+#define DRFLAC_PICTURE_TYPE_DURING_RECORDING 14
+#define DRFLAC_PICTURE_TYPE_DURING_PERFORMANCE 15
+#define DRFLAC_PICTURE_TYPE_SCREEN_CAPTURE 16
+#define DRFLAC_PICTURE_TYPE_BRIGHT_COLORED_FISH 17
+#define DRFLAC_PICTURE_TYPE_ILLUSTRATION 18
+#define DRFLAC_PICTURE_TYPE_BAND_LOGOTYPE 19
+#define DRFLAC_PICTURE_TYPE_PUBLISHER_LOGOTYPE 20
+
+typedef enum
+{
+ drflac_container_native,
+ drflac_container_ogg,
+ drflac_container_unknown
+} drflac_container;
+
+typedef enum
+{
+ drflac_seek_origin_start,
+ drflac_seek_origin_current
+} drflac_seek_origin;
+
+/* Packing is important on this structure because we map this directly to the raw data within the SEEKTABLE metadata block. */
+#pragma pack(2)
+typedef struct
+{
+ drflac_uint64 firstPCMFrame;
+ drflac_uint64 flacFrameOffset; /* The offset from the first byte of the header of the first frame. */
+ drflac_uint16 pcmFrameCount;
+} drflac_seekpoint;
+#pragma pack()
+
+typedef struct
+{
+ drflac_uint16 minBlockSizeInPCMFrames;
+ drflac_uint16 maxBlockSizeInPCMFrames;
+ drflac_uint32 minFrameSizeInPCMFrames;
+ drflac_uint32 maxFrameSizeInPCMFrames;
+ drflac_uint32 sampleRate;
+ drflac_uint8 channels;
+ drflac_uint8 bitsPerSample;
+ drflac_uint64 totalPCMFrameCount;
+ drflac_uint8 md5[16];
+} drflac_streaminfo;
+
+typedef struct
+{
+ /*
+ The metadata type. Use this to know how to interpret the data below. Will be set to one of the
+ DRFLAC_METADATA_BLOCK_TYPE_* tokens.
+ */
+ drflac_uint32 type;
+
+ /*
+ A pointer to the raw data. This points to a temporary buffer so don't hold on to it. It's best to
+ not modify the contents of this buffer. Use the structures below for more meaningful and structured
+ information about the metadata. It's possible for this to be null.
+ */
+ const void* pRawData;
+
+ /* The size in bytes of the block and the buffer pointed to by pRawData if it's non-NULL. */
+ drflac_uint32 rawDataSize;
+
+ union
+ {
+ drflac_streaminfo streaminfo;
+
+ struct
+ {
+ int unused;
+ } padding;
+
+ struct
+ {
+ drflac_uint32 id;
+ const void* pData;
+ drflac_uint32 dataSize;
+ } application;
+
+ struct
+ {
+ drflac_uint32 seekpointCount;
+ const drflac_seekpoint* pSeekpoints;
+ } seektable;
+
+ struct
+ {
+ drflac_uint32 vendorLength;
+ const char* vendor;
+ drflac_uint32 commentCount;
+ const void* pComments;
+ } vorbis_comment;
+
+ struct
+ {
+ char catalog[128];
+ drflac_uint64 leadInSampleCount;
+ drflac_bool32 isCD;
+ drflac_uint8 trackCount;
+ const void* pTrackData;
+ } cuesheet;
+
+ struct
+ {
+ drflac_uint32 type;
+ drflac_uint32 mimeLength;
+ const char* mime;
+ drflac_uint32 descriptionLength;
+ const char* description;
+ drflac_uint32 width;
+ drflac_uint32 height;
+ drflac_uint32 colorDepth;
+ drflac_uint32 indexColorCount;
+ drflac_uint32 pictureDataSize;
+ const drflac_uint8* pPictureData;
+ } picture;
+ } data;
+} drflac_metadata;
+
+
+/*
+Callback for when data needs to be read from the client.
+
+
+Parameters
+----------
+pUserData (in)
+ The user data that was passed to drflac_open() and family.
+
+pBufferOut (out)
+ The output buffer.
+
+bytesToRead (in)
+ The number of bytes to read.
+
+
+Return Value
+------------
+The number of bytes actually read.
+
+
+Remarks
+-------
+A return value of less than bytesToRead indicates the end of the stream. Do _not_ return from this callback until either the entire bytesToRead is filled or
+you have reached the end of the stream.
+*/
+typedef size_t (* drflac_read_proc)(void* pUserData, void* pBufferOut, size_t bytesToRead);
+
+/*
+Callback for when data needs to be seeked.
+
+
+Parameters
+----------
+pUserData (in)
+ The user data that was passed to drflac_open() and family.
+
+offset (in)
+ The number of bytes to move, relative to the origin. Will never be negative.
+
+origin (in)
+ The origin of the seek - the current position or the start of the stream.
+
+
+Return Value
+------------
+Whether or not the seek was successful.
+
+
+Remarks
+-------
+The offset will never be negative. Whether or not it is relative to the beginning or current position is determined by the "origin" parameter which will be
+either drflac_seek_origin_start or drflac_seek_origin_current.
+
+When seeking to a PCM frame using drflac_seek_to_pcm_frame(), dr_flac may call this with an offset beyond the end of the FLAC stream. This needs to be detected
+and handled by returning DRFLAC_FALSE.
+*/
+typedef drflac_bool32 (* drflac_seek_proc)(void* pUserData, int offset, drflac_seek_origin origin);
+
+/*
+Callback for when a metadata block is read.
+
+
+Parameters
+----------
+pUserData (in)
+ The user data that was passed to drflac_open() and family.
+
+pMetadata (in)
+ A pointer to a structure containing the data of the metadata block.
+
+
+Remarks
+-------
+Use pMetadata->type to determine which metadata block is being handled and how to read the data. This
+will be set to one of the DRFLAC_METADATA_BLOCK_TYPE_* tokens.
+*/
+typedef void (* drflac_meta_proc)(void* pUserData, drflac_metadata* pMetadata);
+
+
+typedef struct
+{
+ void* pUserData;
+ void* (* onMalloc)(size_t sz, void* pUserData);
+ void* (* onRealloc)(void* p, size_t sz, void* pUserData);
+ void (* onFree)(void* p, void* pUserData);
+} drflac_allocation_callbacks;
+
+/* Structure for internal use. Only used for decoders opened with drflac_open_memory. */
+typedef struct
+{
+ const drflac_uint8* data;
+ size_t dataSize;
+ size_t currentReadPos;
+} drflac__memory_stream;
+
+/* Structure for internal use. Used for bit streaming. */
+typedef struct
+{
+ /* The function to call when more data needs to be read. */
+ drflac_read_proc onRead;
+
+ /* The function to call when the current read position needs to be moved. */
+ drflac_seek_proc onSeek;
+
+ /* The user data to pass around to onRead and onSeek. */
+ void* pUserData;
+
+
+ /*
+ The number of unaligned bytes in the L2 cache. This will always be 0 until the end of the stream is hit. At the end of the
+ stream there will be a number of bytes that don't cleanly fit in an L1 cache line, so we use this variable to know whether
+ or not the bistreamer needs to run on a slower path to read those last bytes. This will never be more than sizeof(drflac_cache_t).
+ */
+ size_t unalignedByteCount;
+
+ /* The content of the unaligned bytes. */
+ drflac_cache_t unalignedCache;
+
+ /* The index of the next valid cache line in the "L2" cache. */
+ drflac_uint32 nextL2Line;
+
+ /* The number of bits that have been consumed by the cache. This is used to determine how many valid bits are remaining. */
+ drflac_uint32 consumedBits;
+
+ /*
+ The cached data which was most recently read from the client. There are two levels of cache. Data flows as such:
+ Client -> L2 -> L1. The L2 -> L1 movement is aligned and runs on a fast path in just a few instructions.
+ */
+ drflac_cache_t cacheL2[DR_FLAC_BUFFER_SIZE/sizeof(drflac_cache_t)];
+ drflac_cache_t cache;
+
+ /*
+ CRC-16. This is updated whenever bits are read from the bit stream. Manually set this to 0 to reset the CRC. For FLAC, this
+ is reset to 0 at the beginning of each frame.
+ */
+ drflac_uint16 crc16;
+ drflac_cache_t crc16Cache; /* A cache for optimizing CRC calculations. This is filled when when the L1 cache is reloaded. */
+ drflac_uint32 crc16CacheIgnoredBytes; /* The number of bytes to ignore when updating the CRC-16 from the CRC-16 cache. */
+} drflac_bs;
+
+typedef struct
+{
+ /* The type of the subframe: SUBFRAME_CONSTANT, SUBFRAME_VERBATIM, SUBFRAME_FIXED or SUBFRAME_LPC. */
+ drflac_uint8 subframeType;
+
+ /* The number of wasted bits per sample as specified by the sub-frame header. */
+ drflac_uint8 wastedBitsPerSample;
+
+ /* The order to use for the prediction stage for SUBFRAME_FIXED and SUBFRAME_LPC. */
+ drflac_uint8 lpcOrder;
+
+ /* A pointer to the buffer containing the decoded samples in the subframe. This pointer is an offset from drflac::pExtraData. */
+ drflac_int32* pSamplesS32;
+} drflac_subframe;
+
+typedef struct
+{
+ /*
+ If the stream uses variable block sizes, this will be set to the index of the first PCM frame. If fixed block sizes are used, this will
+ always be set to 0. This is 64-bit because the decoded PCM frame number will be 36 bits.
+ */
+ drflac_uint64 pcmFrameNumber;
+
+ /*
+ If the stream uses fixed block sizes, this will be set to the frame number. If variable block sizes are used, this will always be 0. This
+ is 32-bit because in fixed block sizes, the maximum frame number will be 31 bits.
+ */
+ drflac_uint32 flacFrameNumber;
+
+ /* The sample rate of this frame. */
+ drflac_uint32 sampleRate;
+
+ /* The number of PCM frames in each sub-frame within this frame. */
+ drflac_uint16 blockSizeInPCMFrames;
+
+ /*
+ The channel assignment of this frame. This is not always set to the channel count. If interchannel decorrelation is being used this
+ will be set to DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE, DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE or DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE.
+ */
+ drflac_uint8 channelAssignment;
+
+ /* The number of bits per sample within this frame. */
+ drflac_uint8 bitsPerSample;
+
+ /* The frame's CRC. */
+ drflac_uint8 crc8;
+} drflac_frame_header;
+
+typedef struct
+{
+ /* The header. */
+ drflac_frame_header header;
+
+ /*
+ The number of PCM frames left to be read in this FLAC frame. This is initially set to the block size. As PCM frames are read,
+ this will be decremented. When it reaches 0, the decoder will see this frame as fully consumed and load the next frame.
+ */
+ drflac_uint32 pcmFramesRemaining;
+
+ /* The list of sub-frames within the frame. There is one sub-frame for each channel, and there's a maximum of 8 channels. */
+ drflac_subframe subframes[8];
+} drflac_frame;
+
+typedef struct
+{
+ /* The function to call when a metadata block is read. */
+ drflac_meta_proc onMeta;
+
+ /* The user data posted to the metadata callback function. */
+ void* pUserDataMD;
+
+ /* Memory allocation callbacks. */
+ drflac_allocation_callbacks allocationCallbacks;
+
+
+ /* The sample rate. Will be set to something like 44100. */
+ drflac_uint32 sampleRate;
+
+ /*
+ The number of channels. This will be set to 1 for monaural streams, 2 for stereo, etc. Maximum 8. This is set based on the
+ value specified in the STREAMINFO block.
+ */
+ drflac_uint8 channels;
+
+ /* The bits per sample. Will be set to something like 16, 24, etc. */
+ drflac_uint8 bitsPerSample;
+
+ /* The maximum block size, in samples. This number represents the number of samples in each channel (not combined). */
+ drflac_uint16 maxBlockSizeInPCMFrames;
+
+ /*
+ The total number of PCM Frames making up the stream. Can be 0 in which case it's still a valid stream, but just means
+ the total PCM frame count is unknown. Likely the case with streams like internet radio.
+ */
+ drflac_uint64 totalPCMFrameCount;
+
+
+ /* The container type. This is set based on whether or not the decoder was opened from a native or Ogg stream. */
+ drflac_container container;
+
+ /* The number of seekpoints in the seektable. */
+ drflac_uint32 seekpointCount;
+
+
+ /* Information about the frame the decoder is currently sitting on. */
+ drflac_frame currentFLACFrame;
+
+
+ /* The index of the PCM frame the decoder is currently sitting on. This is only used for seeking. */
+ drflac_uint64 currentPCMFrame;
+
+ /* The position of the first FLAC frame in the stream. This is only ever used for seeking. */
+ drflac_uint64 firstFLACFramePosInBytes;
+
+
+ /* A hack to avoid a malloc() when opening a decoder with drflac_open_memory(). */
+ drflac__memory_stream memoryStream;
+
+
+ /* A pointer to the decoded sample data. This is an offset of pExtraData. */
+ drflac_int32* pDecodedSamples;
+
+ /* A pointer to the seek table. This is an offset of pExtraData, or NULL if there is no seek table. */
+ drflac_seekpoint* pSeekpoints;
+
+ /* Internal use only. Only used with Ogg containers. Points to a drflac_oggbs object. This is an offset of pExtraData. */
+ void* _oggbs;
+
+ /* Internal use only. Used for profiling and testing different seeking modes. */
+ drflac_bool32 _noSeekTableSeek : 1;
+ drflac_bool32 _noBinarySearchSeek : 1;
+ drflac_bool32 _noBruteForceSeek : 1;
+
+ /* The bit streamer. The raw FLAC data is fed through this object. */
+ drflac_bs bs;
+
+ /* Variable length extra data. We attach this to the end of the object so we can avoid unnecessary mallocs. */
+ drflac_uint8 pExtraData[1];
+} drflac;
+
+
+/*
+Opens a FLAC decoder.
+
+
+Parameters
+----------
+onRead (in)
+ The function to call when data needs to be read from the client.
+
+onSeek (in)
+ The function to call when the read position of the client data needs to move.
+
+pUserData (in, optional)
+ A pointer to application defined data that will be passed to onRead and onSeek.
+
+pAllocationCallbacks (in, optional)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Return Value
+------------
+Returns a pointer to an object representing the decoder.
+
+
+Remarks
+-------
+Close the decoder with `drflac_close()`.
+
+`pAllocationCallbacks` can be NULL in which case it will use `DRFLAC_MALLOC`, `DRFLAC_REALLOC` and `DRFLAC_FREE`.
+
+This function will automatically detect whether or not you are attempting to open a native or Ogg encapsulated FLAC, both of which should work seamlessly
+without any manual intervention. Ogg encapsulation also works with multiplexed streams which basically means it can play FLAC encoded audio tracks in videos.
+
+This is the lowest level function for opening a FLAC stream. You can also use `drflac_open_file()` and `drflac_open_memory()` to open the stream from a file or
+from a block of memory respectively.
+
+The STREAMINFO block must be present for this to succeed. Use `drflac_open_relaxed()` to open a FLAC stream where the header may not be present.
+
+Use `drflac_open_with_metadata()` if you need access to metadata.
+
+
+Seek Also
+---------
+drflac_open_file()
+drflac_open_memory()
+drflac_open_with_metadata()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Opens a FLAC stream with relaxed validation of the header block.
+
+
+Parameters
+----------
+onRead (in)
+ The function to call when data needs to be read from the client.
+
+onSeek (in)
+ The function to call when the read position of the client data needs to move.
+
+container (in)
+ Whether or not the FLAC stream is encapsulated using standard FLAC encapsulation or Ogg encapsulation.
+
+pUserData (in, optional)
+ A pointer to application defined data that will be passed to onRead and onSeek.
+
+pAllocationCallbacks (in, optional)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Return Value
+------------
+A pointer to an object representing the decoder.
+
+
+Remarks
+-------
+The same as drflac_open(), except attempts to open the stream even when a header block is not present.
+
+Because the header is not necessarily available, the caller must explicitly define the container (Native or Ogg). Do not set this to `drflac_container_unknown`
+as that is for internal use only.
+
+Opening in relaxed mode will continue reading data from onRead until it finds a valid frame. If a frame is never found it will continue forever. To abort,
+force your `onRead` callback to return 0, which dr_flac will use as an indicator that the end of the stream was found.
+
+Use `drflac_open_with_metadata_relaxed()` if you need access to metadata.
+*/
+DRFLAC_API drflac* drflac_open_relaxed(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_container container, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Opens a FLAC decoder and notifies the caller of the metadata chunks (album art, etc.).
+
+
+Parameters
+----------
+onRead (in)
+ The function to call when data needs to be read from the client.
+
+onSeek (in)
+ The function to call when the read position of the client data needs to move.
+
+onMeta (in)
+ The function to call for every metadata block.
+
+pUserData (in, optional)
+ A pointer to application defined data that will be passed to onRead, onSeek and onMeta.
+
+pAllocationCallbacks (in, optional)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Return Value
+------------
+A pointer to an object representing the decoder.
+
+
+Remarks
+-------
+Close the decoder with `drflac_close()`.
+
+`pAllocationCallbacks` can be NULL in which case it will use `DRFLAC_MALLOC`, `DRFLAC_REALLOC` and `DRFLAC_FREE`.
+
+This is slower than `drflac_open()`, so avoid this one if you don't need metadata. Internally, this will allocate and free memory on the heap for every
+metadata block except for STREAMINFO and PADDING blocks.
+
+The caller is notified of the metadata via the `onMeta` callback. All metadata blocks will be handled before the function returns. This callback takes a
+pointer to a `drflac_metadata` object which is a union containing the data of all relevant metadata blocks. Use the `type` member to discriminate against
+the different metadata types.
+
+The STREAMINFO block must be present for this to succeed. Use `drflac_open_with_metadata_relaxed()` to open a FLAC stream where the header may not be present.
+
+Note that this will behave inconsistently with `drflac_open()` if the stream is an Ogg encapsulated stream and a metadata block is corrupted. This is due to
+the way the Ogg stream recovers from corrupted pages. When `drflac_open_with_metadata()` is being used, the open routine will try to read the contents of the
+metadata block, whereas `drflac_open()` will simply seek past it (for the sake of efficiency). This inconsistency can result in different samples being
+returned depending on whether or not the stream is being opened with metadata.
+
+
+Seek Also
+---------
+drflac_open_file_with_metadata()
+drflac_open_memory_with_metadata()
+drflac_open()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open_with_metadata(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+The same as drflac_open_with_metadata(), except attempts to open the stream even when a header block is not present.
+
+See Also
+--------
+drflac_open_with_metadata()
+drflac_open_relaxed()
+*/
+DRFLAC_API drflac* drflac_open_with_metadata_relaxed(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, drflac_container container, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Closes the given FLAC decoder.
+
+
+Parameters
+----------
+pFlac (in)
+ The decoder to close.
+
+
+Remarks
+-------
+This will destroy the decoder object.
+
+
+See Also
+--------
+drflac_open()
+drflac_open_with_metadata()
+drflac_open_file()
+drflac_open_file_w()
+drflac_open_file_with_metadata()
+drflac_open_file_with_metadata_w()
+drflac_open_memory()
+drflac_open_memory_with_metadata()
+*/
+DRFLAC_API void drflac_close(drflac* pFlac);
+
+
+/*
+Reads sample data from the given FLAC decoder, output as interleaved signed 32-bit PCM.
+
+
+Parameters
+----------
+pFlac (in)
+ The decoder.
+
+framesToRead (in)
+ The number of PCM frames to read.
+
+pBufferOut (out, optional)
+ A pointer to the buffer that will receive the decoded samples.
+
+
+Return Value
+------------
+Returns the number of PCM frames actually read. If the return value is less than `framesToRead` it has reached the end.
+
+
+Remarks
+-------
+pBufferOut can be null, in which case the call will act as a seek, and the return value will be the number of frames seeked.
+*/
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_s32(drflac* pFlac, drflac_uint64 framesToRead, drflac_int32* pBufferOut);
+
+
+/*
+Reads sample data from the given FLAC decoder, output as interleaved signed 16-bit PCM.
+
+
+Parameters
+----------
+pFlac (in)
+ The decoder.
+
+framesToRead (in)
+ The number of PCM frames to read.
+
+pBufferOut (out, optional)
+ A pointer to the buffer that will receive the decoded samples.
+
+
+Return Value
+------------
+Returns the number of PCM frames actually read. If the return value is less than `framesToRead` it has reached the end.
+
+
+Remarks
+-------
+pBufferOut can be null, in which case the call will act as a seek, and the return value will be the number of frames seeked.
+
+Note that this is lossy for streams where the bits per sample is larger than 16.
+*/
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_s16(drflac* pFlac, drflac_uint64 framesToRead, drflac_int16* pBufferOut);
+
+/*
+Reads sample data from the given FLAC decoder, output as interleaved 32-bit floating point PCM.
+
+
+Parameters
+----------
+pFlac (in)
+ The decoder.
+
+framesToRead (in)
+ The number of PCM frames to read.
+
+pBufferOut (out, optional)
+ A pointer to the buffer that will receive the decoded samples.
+
+
+Return Value
+------------
+Returns the number of PCM frames actually read. If the return value is less than `framesToRead` it has reached the end.
+
+
+Remarks
+-------
+pBufferOut can be null, in which case the call will act as a seek, and the return value will be the number of frames seeked.
+
+Note that this should be considered lossy due to the nature of floating point numbers not being able to exactly represent every possible number.
+*/
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_f32(drflac* pFlac, drflac_uint64 framesToRead, float* pBufferOut);
+
+/*
+Seeks to the PCM frame at the given index.
+
+
+Parameters
+----------
+pFlac (in)
+ The decoder.
+
+pcmFrameIndex (in)
+ The index of the PCM frame to seek to. See notes below.
+
+
+Return Value
+-------------
+`DRFLAC_TRUE` if successful; `DRFLAC_FALSE` otherwise.
+*/
+DRFLAC_API drflac_bool32 drflac_seek_to_pcm_frame(drflac* pFlac, drflac_uint64 pcmFrameIndex);
+
+
+
+#ifndef DR_FLAC_NO_STDIO
+/*
+Opens a FLAC decoder from the file at the given path.
+
+
+Parameters
+----------
+pFileName (in)
+ The path of the file to open, either absolute or relative to the current directory.
+
+pAllocationCallbacks (in, optional)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Return Value
+------------
+A pointer to an object representing the decoder.
+
+
+Remarks
+-------
+Close the decoder with drflac_close().
+
+
+Remarks
+-------
+This will hold a handle to the file until the decoder is closed with drflac_close(). Some platforms will restrict the number of files a process can have open
+at any given time, so keep this mind if you have many decoders open at the same time.
+
+
+See Also
+--------
+drflac_open_file_with_metadata()
+drflac_open()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open_file(const char* pFileName, const drflac_allocation_callbacks* pAllocationCallbacks);
+DRFLAC_API drflac* drflac_open_file_w(const wchar_t* pFileName, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Opens a FLAC decoder from the file at the given path and notifies the caller of the metadata chunks (album art, etc.)
+
+
+Parameters
+----------
+pFileName (in)
+ The path of the file to open, either absolute or relative to the current directory.
+
+pAllocationCallbacks (in, optional)
+ A pointer to application defined callbacks for managing memory allocations.
+
+onMeta (in)
+ The callback to fire for each metadata block.
+
+pUserData (in)
+ A pointer to the user data to pass to the metadata callback.
+
+pAllocationCallbacks (in)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Remarks
+-------
+Look at the documentation for drflac_open_with_metadata() for more information on how metadata is handled.
+
+
+See Also
+--------
+drflac_open_with_metadata()
+drflac_open()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open_file_with_metadata(const char* pFileName, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+DRFLAC_API drflac* drflac_open_file_with_metadata_w(const wchar_t* pFileName, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+#endif
+
+/*
+Opens a FLAC decoder from a pre-allocated block of memory
+
+
+Parameters
+----------
+pData (in)
+ A pointer to the raw encoded FLAC data.
+
+dataSize (in)
+ The size in bytes of `data`.
+
+pAllocationCallbacks (in)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Return Value
+------------
+A pointer to an object representing the decoder.
+
+
+Remarks
+-------
+This does not create a copy of the data. It is up to the application to ensure the buffer remains valid for the lifetime of the decoder.
+
+
+See Also
+--------
+drflac_open()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open_memory(const void* pData, size_t dataSize, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Opens a FLAC decoder from a pre-allocated block of memory and notifies the caller of the metadata chunks (album art, etc.)
+
+
+Parameters
+----------
+pData (in)
+ A pointer to the raw encoded FLAC data.
+
+dataSize (in)
+ The size in bytes of `data`.
+
+onMeta (in)
+ The callback to fire for each metadata block.
+
+pUserData (in)
+ A pointer to the user data to pass to the metadata callback.
+
+pAllocationCallbacks (in)
+ A pointer to application defined callbacks for managing memory allocations.
+
+
+Remarks
+-------
+Look at the documentation for drflac_open_with_metadata() for more information on how metadata is handled.
+
+
+See Also
+-------
+drflac_open_with_metadata()
+drflac_open()
+drflac_close()
+*/
+DRFLAC_API drflac* drflac_open_memory_with_metadata(const void* pData, size_t dataSize, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+
+
+/* High Level APIs */
+
+/*
+Opens a FLAC stream from the given callbacks and fully decodes it in a single operation. The return value is a
+pointer to the sample data as interleaved signed 32-bit PCM. The returned data must be freed with drflac_free().
+
+You can pass in custom memory allocation callbacks via the pAllocationCallbacks parameter. This can be NULL in which
+case it will use DRFLAC_MALLOC, DRFLAC_REALLOC and DRFLAC_FREE.
+
+Sometimes a FLAC file won't keep track of the total sample count. In this situation the function will continuously
+read samples into a dynamically sized buffer on the heap until no samples are left.
+
+Do not call this function on a broadcast type of stream (like internet radio streams and whatnot).
+*/
+DRFLAC_API drflac_int32* drflac_open_and_read_pcm_frames_s32(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_and_read_pcm_frames_s32(), except returns signed 16-bit integer samples. */
+DRFLAC_API drflac_int16* drflac_open_and_read_pcm_frames_s16(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_and_read_pcm_frames_s32(), except returns 32-bit floating-point samples. */
+DRFLAC_API float* drflac_open_and_read_pcm_frames_f32(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+#ifndef DR_FLAC_NO_STDIO
+/* Same as drflac_open_and_read_pcm_frames_s32() except opens the decoder from a file. */
+DRFLAC_API drflac_int32* drflac_open_file_and_read_pcm_frames_s32(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_file_and_read_pcm_frames_s32(), except returns signed 16-bit integer samples. */
+DRFLAC_API drflac_int16* drflac_open_file_and_read_pcm_frames_s16(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_file_and_read_pcm_frames_s32(), except returns 32-bit floating-point samples. */
+DRFLAC_API float* drflac_open_file_and_read_pcm_frames_f32(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+#endif
+
+/* Same as drflac_open_and_read_pcm_frames_s32() except opens the decoder from a block of memory. */
+DRFLAC_API drflac_int32* drflac_open_memory_and_read_pcm_frames_s32(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_memory_and_read_pcm_frames_s32(), except returns signed 16-bit integer samples. */
+DRFLAC_API drflac_int16* drflac_open_memory_and_read_pcm_frames_s16(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/* Same as drflac_open_memory_and_read_pcm_frames_s32(), except returns 32-bit floating-point samples. */
+DRFLAC_API float* drflac_open_memory_and_read_pcm_frames_f32(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+/*
+Frees memory that was allocated internally by dr_flac.
+
+Set pAllocationCallbacks to the same object that was passed to drflac_open_*_and_read_pcm_frames_*(). If you originally passed in NULL, pass in NULL for this.
+*/
+DRFLAC_API void drflac_free(void* p, const drflac_allocation_callbacks* pAllocationCallbacks);
+
+
+/* Structure representing an iterator for vorbis comments in a VORBIS_COMMENT metadata block. */
+typedef struct
+{
+ drflac_uint32 countRemaining;
+ const char* pRunningData;
+} drflac_vorbis_comment_iterator;
+
+/*
+Initializes a vorbis comment iterator. This can be used for iterating over the vorbis comments in a VORBIS_COMMENT
+metadata block.
+*/
+DRFLAC_API void drflac_init_vorbis_comment_iterator(drflac_vorbis_comment_iterator* pIter, drflac_uint32 commentCount, const void* pComments);
+
+/*
+Goes to the next vorbis comment in the given iterator. If null is returned it means there are no more comments. The
+returned string is NOT null terminated.
+*/
+DRFLAC_API const char* drflac_next_vorbis_comment(drflac_vorbis_comment_iterator* pIter, drflac_uint32* pCommentLengthOut);
+
+
+/* Structure representing an iterator for cuesheet tracks in a CUESHEET metadata block. */
+typedef struct
+{
+ drflac_uint32 countRemaining;
+ const char* pRunningData;
+} drflac_cuesheet_track_iterator;
+
+/* Packing is important on this structure because we map this directly to the raw data within the CUESHEET metadata block. */
+#pragma pack(4)
+typedef struct
+{
+ drflac_uint64 offset;
+ drflac_uint8 index;
+ drflac_uint8 reserved[3];
+} drflac_cuesheet_track_index;
+#pragma pack()
+
+typedef struct
+{
+ drflac_uint64 offset;
+ drflac_uint8 trackNumber;
+ char ISRC[12];
+ drflac_bool8 isAudio;
+ drflac_bool8 preEmphasis;
+ drflac_uint8 indexCount;
+ const drflac_cuesheet_track_index* pIndexPoints;
+} drflac_cuesheet_track;
+
+/*
+Initializes a cuesheet track iterator. This can be used for iterating over the cuesheet tracks in a CUESHEET metadata
+block.
+*/
+DRFLAC_API void drflac_init_cuesheet_track_iterator(drflac_cuesheet_track_iterator* pIter, drflac_uint32 trackCount, const void* pTrackData);
+
+/* Goes to the next cuesheet track in the given iterator. If DRFLAC_FALSE is returned it means there are no more comments. */
+DRFLAC_API drflac_bool32 drflac_next_cuesheet_track(drflac_cuesheet_track_iterator* pIter, drflac_cuesheet_track* pCuesheetTrack);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* dr_flac_h */
+
+
+/************************************************************************************************************************************************************
+ ************************************************************************************************************************************************************
+
+ IMPLEMENTATION
+
+ ************************************************************************************************************************************************************
+ ************************************************************************************************************************************************************/
+#if defined(DR_FLAC_IMPLEMENTATION) || defined(DRFLAC_IMPLEMENTATION)
+#ifndef dr_flac_c
+#define dr_flac_c
+
+/* Disable some annoying warnings. */
+#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
+ #pragma GCC diagnostic push
+ #if __GNUC__ >= 7
+ #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+ #endif
+#endif
+
+#ifdef __linux__
+ #ifndef _BSD_SOURCE
+ #define _BSD_SOURCE
+ #endif
+ #ifndef _DEFAULT_SOURCE
+ #define _DEFAULT_SOURCE
+ #endif
+ #ifndef __USE_BSD
+ #define __USE_BSD
+ #endif
+ #include <endian.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _MSC_VER
+ #define DRFLAC_INLINE __forceinline
+#elif defined(__GNUC__)
+ /*
+ I've had a bug report where GCC is emitting warnings about functions possibly not being inlineable. This warning happens when
+ the __attribute__((always_inline)) attribute is defined without an "inline" statement. I think therefore there must be some
+ case where "__inline__" is not always defined, thus the compiler emitting these warnings. When using -std=c89 or -ansi on the
+ command line, we cannot use the "inline" keyword and instead need to use "__inline__". In an attempt to work around this issue
+ I am using "__inline__" only when we're compiling in strict ANSI mode.
+ */
+ #if defined(__STRICT_ANSI__)
+ #define DRFLAC_INLINE __inline__ __attribute__((always_inline))
+ #else
+ #define DRFLAC_INLINE inline __attribute__((always_inline))
+ #endif
+#elif defined(__WATCOMC__)
+ #define DRFLAC_INLINE __inline
+#else
+ #define DRFLAC_INLINE
+#endif
+
+/* CPU architecture. */
+#if defined(__x86_64__) || defined(_M_X64)
+ #define DRFLAC_X64
+#elif defined(__i386) || defined(_M_IX86)
+ #define DRFLAC_X86
+#elif defined(__arm__) || defined(_M_ARM) || defined(_M_ARM64)
+ #define DRFLAC_ARM
+#endif
+
+/*
+Intrinsics Support
+
+There's a bug in GCC 4.2.x which results in an incorrect compilation error when using _mm_slli_epi32() where it complains with
+
+ "error: shift must be an immediate"
+
+Unfortuantely dr_flac depends on this for a few things so we're just going to disable SSE on GCC 4.2 and below.
+*/
+#if !defined(DR_FLAC_NO_SIMD)
+ #if defined(DRFLAC_X64) || defined(DRFLAC_X86)
+ #if defined(_MSC_VER) && !defined(__clang__)
+ /* MSVC. */
+ #if _MSC_VER >= 1400 && !defined(DRFLAC_NO_SSE2) /* 2005 */
+ #define DRFLAC_SUPPORT_SSE2
+ #endif
+ #if _MSC_VER >= 1600 && !defined(DRFLAC_NO_SSE41) /* 2010 */
+ #define DRFLAC_SUPPORT_SSE41
+ #endif
+ #elif defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
+ /* Assume GNUC-style. */
+ #if defined(__SSE2__) && !defined(DRFLAC_NO_SSE2)
+ #define DRFLAC_SUPPORT_SSE2
+ #endif
+ #if defined(__SSE4_1__) && !defined(DRFLAC_NO_SSE41)
+ #define DRFLAC_SUPPORT_SSE41
+ #endif
+ #endif
+
+ /* If at this point we still haven't determined compiler support for the intrinsics just fall back to __has_include. */
+ #if !defined(__GNUC__) && !defined(__clang__) && defined(__has_include)
+ #if !defined(DRFLAC_SUPPORT_SSE2) && !defined(DRFLAC_NO_SSE2) && __has_include(<emmintrin.h>)
+ #define DRFLAC_SUPPORT_SSE2
+ #endif
+ #if !defined(DRFLAC_SUPPORT_SSE41) && !defined(DRFLAC_NO_SSE41) && __has_include(<smmintrin.h>)
+ #define DRFLAC_SUPPORT_SSE41
+ #endif
+ #endif
+
+ #if defined(DRFLAC_SUPPORT_SSE41)
+ #include <smmintrin.h>
+ #elif defined(DRFLAC_SUPPORT_SSE2)
+ #include <emmintrin.h>
+ #endif
+ #endif
+
+ #if defined(DRFLAC_ARM)
+ #if !defined(DRFLAC_NO_NEON) && (defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM64))
+ #define DRFLAC_SUPPORT_NEON
+ #endif
+
+ /* Fall back to looking for the #include file. */
+ #if !defined(__GNUC__) && !defined(__clang__) && defined(__has_include)
+ #if !defined(DRFLAC_SUPPORT_NEON) && !defined(DRFLAC_NO_NEON) && __has_include(<arm_neon.h>)
+ #define DRFLAC_SUPPORT_NEON
+ #endif
+ #endif
+
+ #if defined(DRFLAC_SUPPORT_NEON)
+ #include <arm_neon.h>
+ #endif
+ #endif
+#endif
+
+/* Compile-time CPU feature support. */
+#if !defined(DR_FLAC_NO_SIMD) && (defined(DRFLAC_X86) || defined(DRFLAC_X64))
+ #if defined(_MSC_VER) && !defined(__clang__)
+ #if _MSC_VER >= 1400
+ #include <intrin.h>
+ static void drflac__cpuid(int info[4], int fid)
+ {
+ __cpuid(info, fid);
+ }
+ #else
+ #define DRFLAC_NO_CPUID
+ #endif
+ #else
+ #if defined(__GNUC__) || defined(__clang__)
+ static void drflac__cpuid(int info[4], int fid)
+ {
+ /*
+ It looks like the -fPIC option uses the ebx register which GCC complains about. We can work around this by just using a different register, the
+ specific register of which I'm letting the compiler decide on. The "k" prefix is used to specify a 32-bit register. The {...} syntax is for
+ supporting different assembly dialects.
+
+ What's basically happening is that we're saving and restoring the ebx register manually.
+ */
+ #if defined(DRFLAC_X86) && defined(__PIC__)
+ __asm__ __volatile__ (
+ "xchg{l} {%%}ebx, %k1;"
+ "cpuid;"
+ "xchg{l} {%%}ebx, %k1;"
+ : "=a"(info[0]), "=&r"(info[1]), "=c"(info[2]), "=d"(info[3]) : "a"(fid), "c"(0)
+ );
+ #else
+ __asm__ __volatile__ (
+ "cpuid" : "=a"(info[0]), "=b"(info[1]), "=c"(info[2]), "=d"(info[3]) : "a"(fid), "c"(0)
+ );
+ #endif
+ }
+ #else
+ #define DRFLAC_NO_CPUID
+ #endif
+ #endif
+#else
+ #define DRFLAC_NO_CPUID
+#endif
+
+static DRFLAC_INLINE drflac_bool32 drflac_has_sse2(void)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ #if (defined(DRFLAC_X64) || defined(DRFLAC_X86)) && !defined(DRFLAC_NO_SSE2)
+ #if defined(DRFLAC_X64)
+ return DRFLAC_TRUE; /* 64-bit targets always support SSE2. */
+ #elif (defined(_M_IX86_FP) && _M_IX86_FP == 2) || defined(__SSE2__)
+ return DRFLAC_TRUE; /* If the compiler is allowed to freely generate SSE2 code we can assume support. */
+ #else
+ #if defined(DRFLAC_NO_CPUID)
+ return DRFLAC_FALSE;
+ #else
+ int info[4];
+ drflac__cpuid(info, 1);
+ return (info[3] & (1 << 26)) != 0;
+ #endif
+ #endif
+ #else
+ return DRFLAC_FALSE; /* SSE2 is only supported on x86 and x64 architectures. */
+ #endif
+#else
+ return DRFLAC_FALSE; /* No compiler support. */
+#endif
+}
+
+static DRFLAC_INLINE drflac_bool32 drflac_has_sse41(void)
+{
+#if defined(DRFLAC_SUPPORT_SSE41)
+ #if (defined(DRFLAC_X64) || defined(DRFLAC_X86)) && !defined(DRFLAC_NO_SSE41)
+ #if defined(DRFLAC_X64)
+ return DRFLAC_TRUE; /* 64-bit targets always support SSE4.1. */
+ #elif (defined(_M_IX86_FP) && _M_IX86_FP == 2) || defined(__SSE4_1__)
+ return DRFLAC_TRUE; /* If the compiler is allowed to freely generate SSE41 code we can assume support. */
+ #else
+ #if defined(DRFLAC_NO_CPUID)
+ return DRFLAC_FALSE;
+ #else
+ int info[4];
+ drflac__cpuid(info, 1);
+ return (info[2] & (1 << 19)) != 0;
+ #endif
+ #endif
+ #else
+ return DRFLAC_FALSE; /* SSE41 is only supported on x86 and x64 architectures. */
+ #endif
+#else
+ return DRFLAC_FALSE; /* No compiler support. */
+#endif
+}
+
+
+#if defined(_MSC_VER) && _MSC_VER >= 1500 && (defined(DRFLAC_X86) || defined(DRFLAC_X64)) && !defined(__clang__)
+ #define DRFLAC_HAS_LZCNT_INTRINSIC
+#elif (defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)))
+ #define DRFLAC_HAS_LZCNT_INTRINSIC
+#elif defined(__clang__)
+ #if defined(__has_builtin)
+ #if __has_builtin(__builtin_clzll) || __has_builtin(__builtin_clzl)
+ #define DRFLAC_HAS_LZCNT_INTRINSIC
+ #endif
+ #endif
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400 && !defined(__clang__)
+ #define DRFLAC_HAS_BYTESWAP16_INTRINSIC
+ #define DRFLAC_HAS_BYTESWAP32_INTRINSIC
+ #define DRFLAC_HAS_BYTESWAP64_INTRINSIC
+#elif defined(__clang__)
+ #if defined(__has_builtin)
+ #if __has_builtin(__builtin_bswap16)
+ #define DRFLAC_HAS_BYTESWAP16_INTRINSIC
+ #endif
+ #if __has_builtin(__builtin_bswap32)
+ #define DRFLAC_HAS_BYTESWAP32_INTRINSIC
+ #endif
+ #if __has_builtin(__builtin_bswap64)
+ #define DRFLAC_HAS_BYTESWAP64_INTRINSIC
+ #endif
+ #endif
+#elif defined(__GNUC__)
+ #if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+ #define DRFLAC_HAS_BYTESWAP32_INTRINSIC
+ #define DRFLAC_HAS_BYTESWAP64_INTRINSIC
+ #endif
+ #if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
+ #define DRFLAC_HAS_BYTESWAP16_INTRINSIC
+ #endif
+#endif
+
+
+/* Standard library stuff. */
+#ifndef DRFLAC_ASSERT
+#include <assert.h>
+#define DRFLAC_ASSERT(expression) assert(expression)
+#endif
+#ifndef DRFLAC_MALLOC
+#define DRFLAC_MALLOC(sz) malloc((sz))
+#endif
+#ifndef DRFLAC_REALLOC
+#define DRFLAC_REALLOC(p, sz) realloc((p), (sz))
+#endif
+#ifndef DRFLAC_FREE
+#define DRFLAC_FREE(p) free((p))
+#endif
+#ifndef DRFLAC_COPY_MEMORY
+#define DRFLAC_COPY_MEMORY(dst, src, sz) memcpy((dst), (src), (sz))
+#endif
+#ifndef DRFLAC_ZERO_MEMORY
+#define DRFLAC_ZERO_MEMORY(p, sz) memset((p), 0, (sz))
+#endif
+#ifndef DRFLAC_ZERO_OBJECT
+#define DRFLAC_ZERO_OBJECT(p) DRFLAC_ZERO_MEMORY((p), sizeof(*(p)))
+#endif
+
+#define DRFLAC_MAX_SIMD_VECTOR_SIZE 64 /* 64 for AVX-512 in the future. */
+
+typedef drflac_int32 drflac_result;
+#define DRFLAC_SUCCESS 0
+#define DRFLAC_ERROR -1 /* A generic error. */
+#define DRFLAC_INVALID_ARGS -2
+#define DRFLAC_INVALID_OPERATION -3
+#define DRFLAC_OUT_OF_MEMORY -4
+#define DRFLAC_OUT_OF_RANGE -5
+#define DRFLAC_ACCESS_DENIED -6
+#define DRFLAC_DOES_NOT_EXIST -7
+#define DRFLAC_ALREADY_EXISTS -8
+#define DRFLAC_TOO_MANY_OPEN_FILES -9
+#define DRFLAC_INVALID_FILE -10
+#define DRFLAC_TOO_BIG -11
+#define DRFLAC_PATH_TOO_LONG -12
+#define DRFLAC_NAME_TOO_LONG -13
+#define DRFLAC_NOT_DIRECTORY -14
+#define DRFLAC_IS_DIRECTORY -15
+#define DRFLAC_DIRECTORY_NOT_EMPTY -16
+#define DRFLAC_END_OF_FILE -17
+#define DRFLAC_NO_SPACE -18
+#define DRFLAC_BUSY -19
+#define DRFLAC_IO_ERROR -20
+#define DRFLAC_INTERRUPT -21
+#define DRFLAC_UNAVAILABLE -22
+#define DRFLAC_ALREADY_IN_USE -23
+#define DRFLAC_BAD_ADDRESS -24
+#define DRFLAC_BAD_SEEK -25
+#define DRFLAC_BAD_PIPE -26
+#define DRFLAC_DEADLOCK -27
+#define DRFLAC_TOO_MANY_LINKS -28
+#define DRFLAC_NOT_IMPLEMENTED -29
+#define DRFLAC_NO_MESSAGE -30
+#define DRFLAC_BAD_MESSAGE -31
+#define DRFLAC_NO_DATA_AVAILABLE -32
+#define DRFLAC_INVALID_DATA -33
+#define DRFLAC_TIMEOUT -34
+#define DRFLAC_NO_NETWORK -35
+#define DRFLAC_NOT_UNIQUE -36
+#define DRFLAC_NOT_SOCKET -37
+#define DRFLAC_NO_ADDRESS -38
+#define DRFLAC_BAD_PROTOCOL -39
+#define DRFLAC_PROTOCOL_UNAVAILABLE -40
+#define DRFLAC_PROTOCOL_NOT_SUPPORTED -41
+#define DRFLAC_PROTOCOL_FAMILY_NOT_SUPPORTED -42
+#define DRFLAC_ADDRESS_FAMILY_NOT_SUPPORTED -43
+#define DRFLAC_SOCKET_NOT_SUPPORTED -44
+#define DRFLAC_CONNECTION_RESET -45
+#define DRFLAC_ALREADY_CONNECTED -46
+#define DRFLAC_NOT_CONNECTED -47
+#define DRFLAC_CONNECTION_REFUSED -48
+#define DRFLAC_NO_HOST -49
+#define DRFLAC_IN_PROGRESS -50
+#define DRFLAC_CANCELLED -51
+#define DRFLAC_MEMORY_ALREADY_MAPPED -52
+#define DRFLAC_AT_END -53
+#define DRFLAC_CRC_MISMATCH -128
+
+#define DRFLAC_SUBFRAME_CONSTANT 0
+#define DRFLAC_SUBFRAME_VERBATIM 1
+#define DRFLAC_SUBFRAME_FIXED 8
+#define DRFLAC_SUBFRAME_LPC 32
+#define DRFLAC_SUBFRAME_RESERVED 255
+
+#define DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE 0
+#define DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE2 1
+
+#define DRFLAC_CHANNEL_ASSIGNMENT_INDEPENDENT 0
+#define DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE 8
+#define DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE 9
+#define DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE 10
+
+#define drflac_align(x, a) ((((x) + (a) - 1) / (a)) * (a))
+
+
+DRFLAC_API void drflac_version(drflac_uint32* pMajor, drflac_uint32* pMinor, drflac_uint32* pRevision)
+{
+ if (pMajor) {
+ *pMajor = DRFLAC_VERSION_MAJOR;
+ }
+
+ if (pMinor) {
+ *pMinor = DRFLAC_VERSION_MINOR;
+ }
+
+ if (pRevision) {
+ *pRevision = DRFLAC_VERSION_REVISION;
+ }
+}
+
+DRFLAC_API const char* drflac_version_string(void)
+{
+ return DRFLAC_VERSION_STRING;
+}
+
+
+/* CPU caps. */
+#if defined(__has_feature)
+ #if __has_feature(thread_sanitizer)
+ #define DRFLAC_NO_THREAD_SANITIZE __attribute__((no_sanitize("thread")))
+ #else
+ #define DRFLAC_NO_THREAD_SANITIZE
+ #endif
+#else
+ #define DRFLAC_NO_THREAD_SANITIZE
+#endif
+
+#if defined(DRFLAC_HAS_LZCNT_INTRINSIC)
+static drflac_bool32 drflac__gIsLZCNTSupported = DRFLAC_FALSE;
+#endif
+
+#ifndef DRFLAC_NO_CPUID
+static drflac_bool32 drflac__gIsSSE2Supported = DRFLAC_FALSE;
+static drflac_bool32 drflac__gIsSSE41Supported = DRFLAC_FALSE;
+
+/*
+I've had a bug report that Clang's ThreadSanitizer presents a warning in this function. Having reviewed this, this does
+actually make sense. However, since CPU caps should never differ for a running process, I don't think the trade off of
+complicating internal API's by passing around CPU caps versus just disabling the warnings is worthwhile. I'm therefore
+just going to disable these warnings. This is disabled via the DRFLAC_NO_THREAD_SANITIZE attribute.
+*/
+DRFLAC_NO_THREAD_SANITIZE static void drflac__init_cpu_caps(void)
+{
+ static drflac_bool32 isCPUCapsInitialized = DRFLAC_FALSE;
+
+ if (!isCPUCapsInitialized) {
+ /* LZCNT */
+#if defined(DRFLAC_HAS_LZCNT_INTRINSIC)
+ int info[4] = {0};
+ drflac__cpuid(info, 0x80000001);
+ drflac__gIsLZCNTSupported = (info[2] & (1 << 5)) != 0;
+#endif
+
+ /* SSE2 */
+ drflac__gIsSSE2Supported = drflac_has_sse2();
+
+ /* SSE4.1 */
+ drflac__gIsSSE41Supported = drflac_has_sse41();
+
+ /* Initialized. */
+ isCPUCapsInitialized = DRFLAC_TRUE;
+ }
+}
+#else
+static drflac_bool32 drflac__gIsNEONSupported = DRFLAC_FALSE;
+
+static DRFLAC_INLINE drflac_bool32 drflac__has_neon(void)
+{
+#if defined(DRFLAC_SUPPORT_NEON)
+ #if defined(DRFLAC_ARM) && !defined(DRFLAC_NO_NEON)
+ #if (defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM64))
+ return DRFLAC_TRUE; /* If the compiler is allowed to freely generate NEON code we can assume support. */
+ #else
+ /* TODO: Runtime check. */
+ return DRFLAC_FALSE;
+ #endif
+ #else
+ return DRFLAC_FALSE; /* NEON is only supported on ARM architectures. */
+ #endif
+#else
+ return DRFLAC_FALSE; /* No compiler support. */
+#endif
+}
+
+DRFLAC_NO_THREAD_SANITIZE static void drflac__init_cpu_caps(void)
+{
+ drflac__gIsNEONSupported = drflac__has_neon();
+
+#if defined(DRFLAC_HAS_LZCNT_INTRINSIC) && defined(DRFLAC_ARM) && (defined(__ARM_ARCH) && __ARM_ARCH >= 5)
+ drflac__gIsLZCNTSupported = DRFLAC_TRUE;
+#endif
+}
+#endif
+
+
+/* Endian Management */
+static DRFLAC_INLINE drflac_bool32 drflac__is_little_endian(void)
+{
+#if defined(DRFLAC_X86) || defined(DRFLAC_X64)
+ return DRFLAC_TRUE;
+#elif defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN
+ return DRFLAC_TRUE;
+#else
+ int n = 1;
+ return (*(char*)&n) == 1;
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac__swap_endian_uint16(drflac_uint16 n)
+{
+#ifdef DRFLAC_HAS_BYTESWAP16_INTRINSIC
+ #if defined(_MSC_VER) && !defined(__clang__)
+ return _byteswap_ushort(n);
+ #elif defined(__GNUC__) || defined(__clang__)
+ return __builtin_bswap16(n);
+ #else
+ #error "This compiler does not support the byte swap intrinsic."
+ #endif
+#else
+ return ((n & 0xFF00) >> 8) |
+ ((n & 0x00FF) << 8);
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac__swap_endian_uint32(drflac_uint32 n)
+{
+#ifdef DRFLAC_HAS_BYTESWAP32_INTRINSIC
+ #if defined(_MSC_VER) && !defined(__clang__)
+ return _byteswap_ulong(n);
+ #elif defined(__GNUC__) || defined(__clang__)
+ #if defined(DRFLAC_ARM) && (defined(__ARM_ARCH) && __ARM_ARCH >= 6) && !defined(DRFLAC_64BIT) /* <-- 64-bit inline assembly has not been tested, so disabling for now. */
+ /* Inline assembly optimized implementation for ARM. In my testing, GCC does not generate optimized code with __builtin_bswap32(). */
+ drflac_uint32 r;
+ __asm__ __volatile__ (
+ #if defined(DRFLAC_64BIT)
+ "rev %w[out], %w[in]" : [out]"=r"(r) : [in]"r"(n) /* <-- This is untested. If someone in the community could test this, that would be appreciated! */
+ #else
+ "rev %[out], %[in]" : [out]"=r"(r) : [in]"r"(n)
+ #endif
+ );
+ return r;
+ #else
+ return __builtin_bswap32(n);
+ #endif
+ #else
+ #error "This compiler does not support the byte swap intrinsic."
+ #endif
+#else
+ return ((n & 0xFF000000) >> 24) |
+ ((n & 0x00FF0000) >> 8) |
+ ((n & 0x0000FF00) << 8) |
+ ((n & 0x000000FF) << 24);
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint64 drflac__swap_endian_uint64(drflac_uint64 n)
+{
+#ifdef DRFLAC_HAS_BYTESWAP64_INTRINSIC
+ #if defined(_MSC_VER) && !defined(__clang__)
+ return _byteswap_uint64(n);
+ #elif defined(__GNUC__) || defined(__clang__)
+ return __builtin_bswap64(n);
+ #else
+ #error "This compiler does not support the byte swap intrinsic."
+ #endif
+#else
+ /* Weird "<< 32" bitshift is required for C89 because it doesn't support 64-bit constants. Should be optimized out by a good compiler. */
+ return ((n & ((drflac_uint64)0xFF000000 << 32)) >> 56) |
+ ((n & ((drflac_uint64)0x00FF0000 << 32)) >> 40) |
+ ((n & ((drflac_uint64)0x0000FF00 << 32)) >> 24) |
+ ((n & ((drflac_uint64)0x000000FF << 32)) >> 8) |
+ ((n & ((drflac_uint64)0xFF000000 )) << 8) |
+ ((n & ((drflac_uint64)0x00FF0000 )) << 24) |
+ ((n & ((drflac_uint64)0x0000FF00 )) << 40) |
+ ((n & ((drflac_uint64)0x000000FF )) << 56);
+#endif
+}
+
+
+static DRFLAC_INLINE drflac_uint16 drflac__be2host_16(drflac_uint16 n)
+{
+ if (drflac__is_little_endian()) {
+ return drflac__swap_endian_uint16(n);
+ }
+
+ return n;
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac__be2host_32(drflac_uint32 n)
+{
+ if (drflac__is_little_endian()) {
+ return drflac__swap_endian_uint32(n);
+ }
+
+ return n;
+}
+
+static DRFLAC_INLINE drflac_uint64 drflac__be2host_64(drflac_uint64 n)
+{
+ if (drflac__is_little_endian()) {
+ return drflac__swap_endian_uint64(n);
+ }
+
+ return n;
+}
+
+
+static DRFLAC_INLINE drflac_uint32 drflac__le2host_32(drflac_uint32 n)
+{
+ if (!drflac__is_little_endian()) {
+ return drflac__swap_endian_uint32(n);
+ }
+
+ return n;
+}
+
+
+static DRFLAC_INLINE drflac_uint32 drflac__unsynchsafe_32(drflac_uint32 n)
+{
+ drflac_uint32 result = 0;
+ result |= (n & 0x7F000000) >> 3;
+ result |= (n & 0x007F0000) >> 2;
+ result |= (n & 0x00007F00) >> 1;
+ result |= (n & 0x0000007F) >> 0;
+
+ return result;
+}
+
+
+
+/* The CRC code below is based on this document: http://zlib.net/crc_v3.txt */
+static drflac_uint8 drflac__crc8_table[] = {
+ 0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
+ 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65, 0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
+ 0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5, 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
+ 0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85, 0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
+ 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2, 0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
+ 0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2, 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
+ 0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32, 0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
+ 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42, 0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
+ 0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
+ 0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, 0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
+ 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C, 0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
+ 0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C, 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
+ 0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B, 0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
+ 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B, 0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
+ 0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB, 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
+ 0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB, 0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
+};
+
+static drflac_uint16 drflac__crc16_table[] = {
+ 0x0000, 0x8005, 0x800F, 0x000A, 0x801B, 0x001E, 0x0014, 0x8011,
+ 0x8033, 0x0036, 0x003C, 0x8039, 0x0028, 0x802D, 0x8027, 0x0022,
+ 0x8063, 0x0066, 0x006C, 0x8069, 0x0078, 0x807D, 0x8077, 0x0072,
+ 0x0050, 0x8055, 0x805F, 0x005A, 0x804B, 0x004E, 0x0044, 0x8041,
+ 0x80C3, 0x00C6, 0x00CC, 0x80C9, 0x00D8, 0x80DD, 0x80D7, 0x00D2,
+ 0x00F0, 0x80F5, 0x80FF, 0x00FA, 0x80EB, 0x00EE, 0x00E4, 0x80E1,
+ 0x00A0, 0x80A5, 0x80AF, 0x00AA, 0x80BB, 0x00BE, 0x00B4, 0x80B1,
+ 0x8093, 0x0096, 0x009C, 0x8099, 0x0088, 0x808D, 0x8087, 0x0082,
+ 0x8183, 0x0186, 0x018C, 0x8189, 0x0198, 0x819D, 0x8197, 0x0192,
+ 0x01B0, 0x81B5, 0x81BF, 0x01BA, 0x81AB, 0x01AE, 0x01A4, 0x81A1,
+ 0x01E0, 0x81E5, 0x81EF, 0x01EA, 0x81FB, 0x01FE, 0x01F4, 0x81F1,
+ 0x81D3, 0x01D6, 0x01DC, 0x81D9, 0x01C8, 0x81CD, 0x81C7, 0x01C2,
+ 0x0140, 0x8145, 0x814F, 0x014A, 0x815B, 0x015E, 0x0154, 0x8151,
+ 0x8173, 0x0176, 0x017C, 0x8179, 0x0168, 0x816D, 0x8167, 0x0162,
+ 0x8123, 0x0126, 0x012C, 0x8129, 0x0138, 0x813D, 0x8137, 0x0132,
+ 0x0110, 0x8115, 0x811F, 0x011A, 0x810B, 0x010E, 0x0104, 0x8101,
+ 0x8303, 0x0306, 0x030C, 0x8309, 0x0318, 0x831D, 0x8317, 0x0312,
+ 0x0330, 0x8335, 0x833F, 0x033A, 0x832B, 0x032E, 0x0324, 0x8321,
+ 0x0360, 0x8365, 0x836F, 0x036A, 0x837B, 0x037E, 0x0374, 0x8371,
+ 0x8353, 0x0356, 0x035C, 0x8359, 0x0348, 0x834D, 0x8347, 0x0342,
+ 0x03C0, 0x83C5, 0x83CF, 0x03CA, 0x83DB, 0x03DE, 0x03D4, 0x83D1,
+ 0x83F3, 0x03F6, 0x03FC, 0x83F9, 0x03E8, 0x83ED, 0x83E7, 0x03E2,
+ 0x83A3, 0x03A6, 0x03AC, 0x83A9, 0x03B8, 0x83BD, 0x83B7, 0x03B2,
+ 0x0390, 0x8395, 0x839F, 0x039A, 0x838B, 0x038E, 0x0384, 0x8381,
+ 0x0280, 0x8285, 0x828F, 0x028A, 0x829B, 0x029E, 0x0294, 0x8291,
+ 0x82B3, 0x02B6, 0x02BC, 0x82B9, 0x02A8, 0x82AD, 0x82A7, 0x02A2,
+ 0x82E3, 0x02E6, 0x02EC, 0x82E9, 0x02F8, 0x82FD, 0x82F7, 0x02F2,
+ 0x02D0, 0x82D5, 0x82DF, 0x02DA, 0x82CB, 0x02CE, 0x02C4, 0x82C1,
+ 0x8243, 0x0246, 0x024C, 0x8249, 0x0258, 0x825D, 0x8257, 0x0252,
+ 0x0270, 0x8275, 0x827F, 0x027A, 0x826B, 0x026E, 0x0264, 0x8261,
+ 0x0220, 0x8225, 0x822F, 0x022A, 0x823B, 0x023E, 0x0234, 0x8231,
+ 0x8213, 0x0216, 0x021C, 0x8219, 0x0208, 0x820D, 0x8207, 0x0202
+};
+
+static DRFLAC_INLINE drflac_uint8 drflac_crc8_byte(drflac_uint8 crc, drflac_uint8 data)
+{
+ return drflac__crc8_table[crc ^ data];
+}
+
+static DRFLAC_INLINE drflac_uint8 drflac_crc8(drflac_uint8 crc, drflac_uint32 data, drflac_uint32 count)
+{
+#ifdef DR_FLAC_NO_CRC
+ (void)crc;
+ (void)data;
+ (void)count;
+ return 0;
+#else
+#if 0
+ /* REFERENCE (use of this implementation requires an explicit flush by doing "drflac_crc8(crc, 0, 8);") */
+ drflac_uint8 p = 0x07;
+ for (int i = count-1; i >= 0; --i) {
+ drflac_uint8 bit = (data & (1 << i)) >> i;
+ if (crc & 0x80) {
+ crc = ((crc << 1) | bit) ^ p;
+ } else {
+ crc = ((crc << 1) | bit);
+ }
+ }
+ return crc;
+#else
+ drflac_uint32 wholeBytes;
+ drflac_uint32 leftoverBits;
+ drflac_uint64 leftoverDataMask;
+
+ static drflac_uint64 leftoverDataMaskTable[8] = {
+ 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F
+ };
+
+ DRFLAC_ASSERT(count <= 32);
+
+ wholeBytes = count >> 3;
+ leftoverBits = count - (wholeBytes*8);
+ leftoverDataMask = leftoverDataMaskTable[leftoverBits];
+
+ switch (wholeBytes) {
+ case 4: crc = drflac_crc8_byte(crc, (drflac_uint8)((data & (0xFF000000UL << leftoverBits)) >> (24 + leftoverBits)));
+ case 3: crc = drflac_crc8_byte(crc, (drflac_uint8)((data & (0x00FF0000UL << leftoverBits)) >> (16 + leftoverBits)));
+ case 2: crc = drflac_crc8_byte(crc, (drflac_uint8)((data & (0x0000FF00UL << leftoverBits)) >> ( 8 + leftoverBits)));
+ case 1: crc = drflac_crc8_byte(crc, (drflac_uint8)((data & (0x000000FFUL << leftoverBits)) >> ( 0 + leftoverBits)));
+ case 0: if (leftoverBits > 0) crc = (drflac_uint8)((crc << leftoverBits) ^ drflac__crc8_table[(crc >> (8 - leftoverBits)) ^ (data & leftoverDataMask)]);
+ }
+ return crc;
+#endif
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac_crc16_byte(drflac_uint16 crc, drflac_uint8 data)
+{
+ return (crc << 8) ^ drflac__crc16_table[(drflac_uint8)(crc >> 8) ^ data];
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac_crc16_cache(drflac_uint16 crc, drflac_cache_t data)
+{
+#ifdef DRFLAC_64BIT
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 56) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 48) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 40) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 32) & 0xFF));
+#endif
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 24) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 16) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 8) & 0xFF));
+ crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 0) & 0xFF));
+
+ return crc;
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac_crc16_bytes(drflac_uint16 crc, drflac_cache_t data, drflac_uint32 byteCount)
+{
+ switch (byteCount)
+ {
+#ifdef DRFLAC_64BIT
+ case 8: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 56) & 0xFF));
+ case 7: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 48) & 0xFF));
+ case 6: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 40) & 0xFF));
+ case 5: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 32) & 0xFF));
+#endif
+ case 4: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 24) & 0xFF));
+ case 3: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 16) & 0xFF));
+ case 2: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 8) & 0xFF));
+ case 1: crc = drflac_crc16_byte(crc, (drflac_uint8)((data >> 0) & 0xFF));
+ }
+
+ return crc;
+}
+
+#if 0
+static DRFLAC_INLINE drflac_uint16 drflac_crc16__32bit(drflac_uint16 crc, drflac_uint32 data, drflac_uint32 count)
+{
+#ifdef DR_FLAC_NO_CRC
+ (void)crc;
+ (void)data;
+ (void)count;
+ return 0;
+#else
+#if 0
+ /* REFERENCE (use of this implementation requires an explicit flush by doing "drflac_crc16(crc, 0, 16);") */
+ drflac_uint16 p = 0x8005;
+ for (int i = count-1; i >= 0; --i) {
+ drflac_uint16 bit = (data & (1ULL << i)) >> i;
+ if (r & 0x8000) {
+ r = ((r << 1) | bit) ^ p;
+ } else {
+ r = ((r << 1) | bit);
+ }
+ }
+
+ return crc;
+#else
+ drflac_uint32 wholeBytes;
+ drflac_uint32 leftoverBits;
+ drflac_uint64 leftoverDataMask;
+
+ static drflac_uint64 leftoverDataMaskTable[8] = {
+ 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F
+ };
+
+ DRFLAC_ASSERT(count <= 64);
+
+ wholeBytes = count >> 3;
+ leftoverBits = count & 7;
+ leftoverDataMask = leftoverDataMaskTable[leftoverBits];
+
+ switch (wholeBytes) {
+ default:
+ case 4: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (0xFF000000UL << leftoverBits)) >> (24 + leftoverBits)));
+ case 3: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (0x00FF0000UL << leftoverBits)) >> (16 + leftoverBits)));
+ case 2: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (0x0000FF00UL << leftoverBits)) >> ( 8 + leftoverBits)));
+ case 1: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (0x000000FFUL << leftoverBits)) >> ( 0 + leftoverBits)));
+ case 0: if (leftoverBits > 0) crc = (crc << leftoverBits) ^ drflac__crc16_table[(crc >> (16 - leftoverBits)) ^ (data & leftoverDataMask)];
+ }
+ return crc;
+#endif
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac_crc16__64bit(drflac_uint16 crc, drflac_uint64 data, drflac_uint32 count)
+{
+#ifdef DR_FLAC_NO_CRC
+ (void)crc;
+ (void)data;
+ (void)count;
+ return 0;
+#else
+ drflac_uint32 wholeBytes;
+ drflac_uint32 leftoverBits;
+ drflac_uint64 leftoverDataMask;
+
+ static drflac_uint64 leftoverDataMaskTable[8] = {
+ 0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F
+ };
+
+ DRFLAC_ASSERT(count <= 64);
+
+ wholeBytes = count >> 3;
+ leftoverBits = count & 7;
+ leftoverDataMask = leftoverDataMaskTable[leftoverBits];
+
+ switch (wholeBytes) {
+ default:
+ case 8: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0xFF000000 << 32) << leftoverBits)) >> (56 + leftoverBits))); /* Weird "<< 32" bitshift is required for C89 because it doesn't support 64-bit constants. Should be optimized out by a good compiler. */
+ case 7: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x00FF0000 << 32) << leftoverBits)) >> (48 + leftoverBits)));
+ case 6: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x0000FF00 << 32) << leftoverBits)) >> (40 + leftoverBits)));
+ case 5: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x000000FF << 32) << leftoverBits)) >> (32 + leftoverBits)));
+ case 4: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0xFF000000 ) << leftoverBits)) >> (24 + leftoverBits)));
+ case 3: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x00FF0000 ) << leftoverBits)) >> (16 + leftoverBits)));
+ case 2: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x0000FF00 ) << leftoverBits)) >> ( 8 + leftoverBits)));
+ case 1: crc = drflac_crc16_byte(crc, (drflac_uint8)((data & (((drflac_uint64)0x000000FF ) << leftoverBits)) >> ( 0 + leftoverBits)));
+ case 0: if (leftoverBits > 0) crc = (crc << leftoverBits) ^ drflac__crc16_table[(crc >> (16 - leftoverBits)) ^ (data & leftoverDataMask)];
+ }
+ return crc;
+#endif
+}
+
+
+static DRFLAC_INLINE drflac_uint16 drflac_crc16(drflac_uint16 crc, drflac_cache_t data, drflac_uint32 count)
+{
+#ifdef DRFLAC_64BIT
+ return drflac_crc16__64bit(crc, data, count);
+#else
+ return drflac_crc16__32bit(crc, data, count);
+#endif
+}
+#endif
+
+
+#ifdef DRFLAC_64BIT
+#define drflac__be2host__cache_line drflac__be2host_64
+#else
+#define drflac__be2host__cache_line drflac__be2host_32
+#endif
+
+/*
+BIT READING ATTEMPT #2
+
+This uses a 32- or 64-bit bit-shifted cache - as bits are read, the cache is shifted such that the first valid bit is sitting
+on the most significant bit. It uses the notion of an L1 and L2 cache (borrowed from CPU architecture), where the L1 cache
+is a 32- or 64-bit unsigned integer (depending on whether or not a 32- or 64-bit build is being compiled) and the L2 is an
+array of "cache lines", with each cache line being the same size as the L1. The L2 is a buffer of about 4KB and is where data
+from onRead() is read into.
+*/
+#define DRFLAC_CACHE_L1_SIZE_BYTES(bs) (sizeof((bs)->cache))
+#define DRFLAC_CACHE_L1_SIZE_BITS(bs) (sizeof((bs)->cache)*8)
+#define DRFLAC_CACHE_L1_BITS_REMAINING(bs) (DRFLAC_CACHE_L1_SIZE_BITS(bs) - (bs)->consumedBits)
+#define DRFLAC_CACHE_L1_SELECTION_MASK(_bitCount) (~((~(drflac_cache_t)0) >> (_bitCount)))
+#define DRFLAC_CACHE_L1_SELECTION_SHIFT(bs, _bitCount) (DRFLAC_CACHE_L1_SIZE_BITS(bs) - (_bitCount))
+#define DRFLAC_CACHE_L1_SELECT(bs, _bitCount) (((bs)->cache) & DRFLAC_CACHE_L1_SELECTION_MASK(_bitCount))
+#define DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, _bitCount) (DRFLAC_CACHE_L1_SELECT((bs), (_bitCount)) >> DRFLAC_CACHE_L1_SELECTION_SHIFT((bs), (_bitCount)))
+#define DRFLAC_CACHE_L1_SELECT_AND_SHIFT_SAFE(bs, _bitCount)(DRFLAC_CACHE_L1_SELECT((bs), (_bitCount)) >> (DRFLAC_CACHE_L1_SELECTION_SHIFT((bs), (_bitCount)) & (DRFLAC_CACHE_L1_SIZE_BITS(bs)-1)))
+#define DRFLAC_CACHE_L2_SIZE_BYTES(bs) (sizeof((bs)->cacheL2))
+#define DRFLAC_CACHE_L2_LINE_COUNT(bs) (DRFLAC_CACHE_L2_SIZE_BYTES(bs) / sizeof((bs)->cacheL2[0]))
+#define DRFLAC_CACHE_L2_LINES_REMAINING(bs) (DRFLAC_CACHE_L2_LINE_COUNT(bs) - (bs)->nextL2Line)
+
+
+#ifndef DR_FLAC_NO_CRC
+static DRFLAC_INLINE void drflac__reset_crc16(drflac_bs* bs)
+{
+ bs->crc16 = 0;
+ bs->crc16CacheIgnoredBytes = bs->consumedBits >> 3;
+}
+
+static DRFLAC_INLINE void drflac__update_crc16(drflac_bs* bs)
+{
+ if (bs->crc16CacheIgnoredBytes == 0) {
+ bs->crc16 = drflac_crc16_cache(bs->crc16, bs->crc16Cache);
+ } else {
+ bs->crc16 = drflac_crc16_bytes(bs->crc16, bs->crc16Cache, DRFLAC_CACHE_L1_SIZE_BYTES(bs) - bs->crc16CacheIgnoredBytes);
+ bs->crc16CacheIgnoredBytes = 0;
+ }
+}
+
+static DRFLAC_INLINE drflac_uint16 drflac__flush_crc16(drflac_bs* bs)
+{
+ /* We should never be flushing in a situation where we are not aligned on a byte boundary. */
+ DRFLAC_ASSERT((DRFLAC_CACHE_L1_BITS_REMAINING(bs) & 7) == 0);
+
+ /*
+ The bits that were read from the L1 cache need to be accumulated. The number of bytes needing to be accumulated is determined
+ by the number of bits that have been consumed.
+ */
+ if (DRFLAC_CACHE_L1_BITS_REMAINING(bs) == 0) {
+ drflac__update_crc16(bs);
+ } else {
+ /* We only accumulate the consumed bits. */
+ bs->crc16 = drflac_crc16_bytes(bs->crc16, bs->crc16Cache >> DRFLAC_CACHE_L1_BITS_REMAINING(bs), (bs->consumedBits >> 3) - bs->crc16CacheIgnoredBytes);
+
+ /*
+ The bits that we just accumulated should never be accumulated again. We need to keep track of how many bytes were accumulated
+ so we can handle that later.
+ */
+ bs->crc16CacheIgnoredBytes = bs->consumedBits >> 3;
+ }
+
+ return bs->crc16;
+}
+#endif
+
+static DRFLAC_INLINE drflac_bool32 drflac__reload_l1_cache_from_l2(drflac_bs* bs)
+{
+ size_t bytesRead;
+ size_t alignedL1LineCount;
+
+ /* Fast path. Try loading straight from L2. */
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+ bs->cache = bs->cacheL2[bs->nextL2Line++];
+ return DRFLAC_TRUE;
+ }
+
+ /*
+ If we get here it means we've run out of data in the L2 cache. We'll need to fetch more from the client, if there's
+ any left.
+ */
+ if (bs->unalignedByteCount > 0) {
+ return DRFLAC_FALSE; /* If we have any unaligned bytes it means there's no more aligned bytes left in the client. */
+ }
+
+ bytesRead = bs->onRead(bs->pUserData, bs->cacheL2, DRFLAC_CACHE_L2_SIZE_BYTES(bs));
+
+ bs->nextL2Line = 0;
+ if (bytesRead == DRFLAC_CACHE_L2_SIZE_BYTES(bs)) {
+ bs->cache = bs->cacheL2[bs->nextL2Line++];
+ return DRFLAC_TRUE;
+ }
+
+
+ /*
+ If we get here it means we were unable to retrieve enough data to fill the entire L2 cache. It probably
+ means we've just reached the end of the file. We need to move the valid data down to the end of the buffer
+ and adjust the index of the next line accordingly. Also keep in mind that the L2 cache must be aligned to
+ the size of the L1 so we'll need to seek backwards by any misaligned bytes.
+ */
+ alignedL1LineCount = bytesRead / DRFLAC_CACHE_L1_SIZE_BYTES(bs);
+
+ /* We need to keep track of any unaligned bytes for later use. */
+ bs->unalignedByteCount = bytesRead - (alignedL1LineCount * DRFLAC_CACHE_L1_SIZE_BYTES(bs));
+ if (bs->unalignedByteCount > 0) {
+ bs->unalignedCache = bs->cacheL2[alignedL1LineCount];
+ }
+
+ if (alignedL1LineCount > 0) {
+ size_t offset = DRFLAC_CACHE_L2_LINE_COUNT(bs) - alignedL1LineCount;
+ size_t i;
+ for (i = alignedL1LineCount; i > 0; --i) {
+ bs->cacheL2[i-1 + offset] = bs->cacheL2[i-1];
+ }
+
+ bs->nextL2Line = (drflac_uint32)offset;
+ bs->cache = bs->cacheL2[bs->nextL2Line++];
+ return DRFLAC_TRUE;
+ } else {
+ /* If we get into this branch it means we weren't able to load any L1-aligned data. */
+ bs->nextL2Line = DRFLAC_CACHE_L2_LINE_COUNT(bs);
+ return DRFLAC_FALSE;
+ }
+}
+
+static drflac_bool32 drflac__reload_cache(drflac_bs* bs)
+{
+ size_t bytesRead;
+
+#ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+#endif
+
+ /* Fast path. Try just moving the next value in the L2 cache to the L1 cache. */
+ if (drflac__reload_l1_cache_from_l2(bs)) {
+ bs->cache = drflac__be2host__cache_line(bs->cache);
+ bs->consumedBits = 0;
+#ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs->cache;
+#endif
+ return DRFLAC_TRUE;
+ }
+
+ /* Slow path. */
+
+ /*
+ If we get here it means we have failed to load the L1 cache from the L2. Likely we've just reached the end of the stream and the last
+ few bytes did not meet the alignment requirements for the L2 cache. In this case we need to fall back to a slower path and read the
+ data from the unaligned cache.
+ */
+ bytesRead = bs->unalignedByteCount;
+ if (bytesRead == 0) {
+ bs->consumedBits = DRFLAC_CACHE_L1_SIZE_BITS(bs); /* <-- The stream has been exhausted, so marked the bits as consumed. */
+ return DRFLAC_FALSE;
+ }
+
+ DRFLAC_ASSERT(bytesRead < DRFLAC_CACHE_L1_SIZE_BYTES(bs));
+ bs->consumedBits = (drflac_uint32)(DRFLAC_CACHE_L1_SIZE_BYTES(bs) - bytesRead) * 8;
+
+ bs->cache = drflac__be2host__cache_line(bs->unalignedCache);
+ bs->cache &= DRFLAC_CACHE_L1_SELECTION_MASK(DRFLAC_CACHE_L1_BITS_REMAINING(bs)); /* <-- Make sure the consumed bits are always set to zero. Other parts of the library depend on this property. */
+ bs->unalignedByteCount = 0; /* <-- At this point the unaligned bytes have been moved into the cache and we thus have no more unaligned bytes. */
+
+#ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs->cache >> bs->consumedBits;
+ bs->crc16CacheIgnoredBytes = bs->consumedBits >> 3;
+#endif
+ return DRFLAC_TRUE;
+}
+
+static void drflac__reset_cache(drflac_bs* bs)
+{
+ bs->nextL2Line = DRFLAC_CACHE_L2_LINE_COUNT(bs); /* <-- This clears the L2 cache. */
+ bs->consumedBits = DRFLAC_CACHE_L1_SIZE_BITS(bs); /* <-- This clears the L1 cache. */
+ bs->cache = 0;
+ bs->unalignedByteCount = 0; /* <-- This clears the trailing unaligned bytes. */
+ bs->unalignedCache = 0;
+
+#ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = 0;
+ bs->crc16CacheIgnoredBytes = 0;
+#endif
+}
+
+
+static DRFLAC_INLINE drflac_bool32 drflac__read_uint32(drflac_bs* bs, unsigned int bitCount, drflac_uint32* pResultOut)
+{
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResultOut != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 32);
+
+ if (bs->consumedBits == DRFLAC_CACHE_L1_SIZE_BITS(bs)) {
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ if (bitCount <= DRFLAC_CACHE_L1_BITS_REMAINING(bs)) {
+ /*
+ If we want to load all 32-bits from a 32-bit cache we need to do it slightly differently because we can't do
+ a 32-bit shift on a 32-bit integer. This will never be the case on 64-bit caches, so we can have a slightly
+ more optimal solution for this.
+ */
+#ifdef DRFLAC_64BIT
+ *pResultOut = (drflac_uint32)DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, bitCount);
+ bs->consumedBits += bitCount;
+ bs->cache <<= bitCount;
+#else
+ if (bitCount < DRFLAC_CACHE_L1_SIZE_BITS(bs)) {
+ *pResultOut = (drflac_uint32)DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, bitCount);
+ bs->consumedBits += bitCount;
+ bs->cache <<= bitCount;
+ } else {
+ /* Cannot shift by 32-bits, so need to do it differently. */
+ *pResultOut = (drflac_uint32)bs->cache;
+ bs->consumedBits = DRFLAC_CACHE_L1_SIZE_BITS(bs);
+ bs->cache = 0;
+ }
+#endif
+
+ return DRFLAC_TRUE;
+ } else {
+ /* It straddles the cached data. It will never cover more than the next chunk. We just read the number in two parts and combine them. */
+ drflac_uint32 bitCountHi = DRFLAC_CACHE_L1_BITS_REMAINING(bs);
+ drflac_uint32 bitCountLo = bitCount - bitCountHi;
+ drflac_uint32 resultHi;
+
+ DRFLAC_ASSERT(bitCountHi > 0);
+ DRFLAC_ASSERT(bitCountHi < 32);
+ resultHi = (drflac_uint32)DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, bitCountHi);
+
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResultOut = (resultHi << bitCountLo) | (drflac_uint32)DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, bitCountLo);
+ bs->consumedBits += bitCountLo;
+ bs->cache <<= bitCountLo;
+ return DRFLAC_TRUE;
+ }
+}
+
+static drflac_bool32 drflac__read_int32(drflac_bs* bs, unsigned int bitCount, drflac_int32* pResult)
+{
+ drflac_uint32 result;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResult != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 32);
+
+ if (!drflac__read_uint32(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Do not attempt to shift by 32 as it's undefined. */
+ if (bitCount < 32) {
+ drflac_uint32 signbit;
+ signbit = ((result >> (bitCount-1)) & 0x01);
+ result |= (~signbit + 1) << bitCount;
+ }
+
+ *pResult = (drflac_int32)result;
+ return DRFLAC_TRUE;
+}
+
+#ifdef DRFLAC_64BIT
+static drflac_bool32 drflac__read_uint64(drflac_bs* bs, unsigned int bitCount, drflac_uint64* pResultOut)
+{
+ drflac_uint32 resultHi;
+ drflac_uint32 resultLo;
+
+ DRFLAC_ASSERT(bitCount <= 64);
+ DRFLAC_ASSERT(bitCount > 32);
+
+ if (!drflac__read_uint32(bs, bitCount - 32, &resultHi)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__read_uint32(bs, 32, &resultLo)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResultOut = (((drflac_uint64)resultHi) << 32) | ((drflac_uint64)resultLo);
+ return DRFLAC_TRUE;
+}
+#endif
+
+/* Function below is unused, but leaving it here in case I need to quickly add it again. */
+#if 0
+static drflac_bool32 drflac__read_int64(drflac_bs* bs, unsigned int bitCount, drflac_int64* pResultOut)
+{
+ drflac_uint64 result;
+ drflac_uint64 signbit;
+
+ DRFLAC_ASSERT(bitCount <= 64);
+
+ if (!drflac__read_uint64(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ signbit = ((result >> (bitCount-1)) & 0x01);
+ result |= (~signbit + 1) << bitCount;
+
+ *pResultOut = (drflac_int64)result;
+ return DRFLAC_TRUE;
+}
+#endif
+
+static drflac_bool32 drflac__read_uint16(drflac_bs* bs, unsigned int bitCount, drflac_uint16* pResult)
+{
+ drflac_uint32 result;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResult != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 16);
+
+ if (!drflac__read_uint32(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResult = (drflac_uint16)result;
+ return DRFLAC_TRUE;
+}
+
+#if 0
+static drflac_bool32 drflac__read_int16(drflac_bs* bs, unsigned int bitCount, drflac_int16* pResult)
+{
+ drflac_int32 result;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResult != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 16);
+
+ if (!drflac__read_int32(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResult = (drflac_int16)result;
+ return DRFLAC_TRUE;
+}
+#endif
+
+static drflac_bool32 drflac__read_uint8(drflac_bs* bs, unsigned int bitCount, drflac_uint8* pResult)
+{
+ drflac_uint32 result;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResult != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 8);
+
+ if (!drflac__read_uint32(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResult = (drflac_uint8)result;
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__read_int8(drflac_bs* bs, unsigned int bitCount, drflac_int8* pResult)
+{
+ drflac_int32 result;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pResult != NULL);
+ DRFLAC_ASSERT(bitCount > 0);
+ DRFLAC_ASSERT(bitCount <= 8);
+
+ if (!drflac__read_int32(bs, bitCount, &result)) {
+ return DRFLAC_FALSE;
+ }
+
+ *pResult = (drflac_int8)result;
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_bool32 drflac__seek_bits(drflac_bs* bs, size_t bitsToSeek)
+{
+ if (bitsToSeek <= DRFLAC_CACHE_L1_BITS_REMAINING(bs)) {
+ bs->consumedBits += (drflac_uint32)bitsToSeek;
+ bs->cache <<= bitsToSeek;
+ return DRFLAC_TRUE;
+ } else {
+ /* It straddles the cached data. This function isn't called too frequently so I'm favouring simplicity here. */
+ bitsToSeek -= DRFLAC_CACHE_L1_BITS_REMAINING(bs);
+ bs->consumedBits += DRFLAC_CACHE_L1_BITS_REMAINING(bs);
+ bs->cache = 0;
+
+ /* Simple case. Seek in groups of the same number as bits that fit within a cache line. */
+#ifdef DRFLAC_64BIT
+ while (bitsToSeek >= DRFLAC_CACHE_L1_SIZE_BITS(bs)) {
+ drflac_uint64 bin;
+ if (!drflac__read_uint64(bs, DRFLAC_CACHE_L1_SIZE_BITS(bs), &bin)) {
+ return DRFLAC_FALSE;
+ }
+ bitsToSeek -= DRFLAC_CACHE_L1_SIZE_BITS(bs);
+ }
+#else
+ while (bitsToSeek >= DRFLAC_CACHE_L1_SIZE_BITS(bs)) {
+ drflac_uint32 bin;
+ if (!drflac__read_uint32(bs, DRFLAC_CACHE_L1_SIZE_BITS(bs), &bin)) {
+ return DRFLAC_FALSE;
+ }
+ bitsToSeek -= DRFLAC_CACHE_L1_SIZE_BITS(bs);
+ }
+#endif
+
+ /* Whole leftover bytes. */
+ while (bitsToSeek >= 8) {
+ drflac_uint8 bin;
+ if (!drflac__read_uint8(bs, 8, &bin)) {
+ return DRFLAC_FALSE;
+ }
+ bitsToSeek -= 8;
+ }
+
+ /* Leftover bits. */
+ if (bitsToSeek > 0) {
+ drflac_uint8 bin;
+ if (!drflac__read_uint8(bs, (drflac_uint32)bitsToSeek, &bin)) {
+ return DRFLAC_FALSE;
+ }
+ bitsToSeek = 0; /* <-- Necessary for the assert below. */
+ }
+
+ DRFLAC_ASSERT(bitsToSeek == 0);
+ return DRFLAC_TRUE;
+ }
+}
+
+
+/* This function moves the bit streamer to the first bit after the sync code (bit 15 of the of the frame header). It will also update the CRC-16. */
+static drflac_bool32 drflac__find_and_seek_to_next_sync_code(drflac_bs* bs)
+{
+ DRFLAC_ASSERT(bs != NULL);
+
+ /*
+ The sync code is always aligned to 8 bits. This is convenient for us because it means we can do byte-aligned movements. The first
+ thing to do is align to the next byte.
+ */
+ if (!drflac__seek_bits(bs, DRFLAC_CACHE_L1_BITS_REMAINING(bs) & 7)) {
+ return DRFLAC_FALSE;
+ }
+
+ for (;;) {
+ drflac_uint8 hi;
+
+#ifndef DR_FLAC_NO_CRC
+ drflac__reset_crc16(bs);
+#endif
+
+ if (!drflac__read_uint8(bs, 8, &hi)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (hi == 0xFF) {
+ drflac_uint8 lo;
+ if (!drflac__read_uint8(bs, 6, &lo)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (lo == 0x3E) {
+ return DRFLAC_TRUE;
+ } else {
+ if (!drflac__seek_bits(bs, DRFLAC_CACHE_L1_BITS_REMAINING(bs) & 7)) {
+ return DRFLAC_FALSE;
+ }
+ }
+ }
+ }
+
+ /* Should never get here. */
+ /*return DRFLAC_FALSE;*/
+}
+
+
+#if defined(DRFLAC_HAS_LZCNT_INTRINSIC)
+#define DRFLAC_IMPLEMENT_CLZ_LZCNT
+#endif
+#if defined(_MSC_VER) && _MSC_VER >= 1400 && (defined(DRFLAC_X64) || defined(DRFLAC_X86)) && !defined(__clang__)
+#define DRFLAC_IMPLEMENT_CLZ_MSVC
+#endif
+
+static DRFLAC_INLINE drflac_uint32 drflac__clz_software(drflac_cache_t x)
+{
+ drflac_uint32 n;
+ static drflac_uint32 clz_table_4[] = {
+ 0,
+ 4,
+ 3, 3,
+ 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1
+ };
+
+ if (x == 0) {
+ return sizeof(x)*8;
+ }
+
+ n = clz_table_4[x >> (sizeof(x)*8 - 4)];
+ if (n == 0) {
+#ifdef DRFLAC_64BIT
+ if ((x & ((drflac_uint64)0xFFFFFFFF << 32)) == 0) { n = 32; x <<= 32; }
+ if ((x & ((drflac_uint64)0xFFFF0000 << 32)) == 0) { n += 16; x <<= 16; }
+ if ((x & ((drflac_uint64)0xFF000000 << 32)) == 0) { n += 8; x <<= 8; }
+ if ((x & ((drflac_uint64)0xF0000000 << 32)) == 0) { n += 4; x <<= 4; }
+#else
+ if ((x & 0xFFFF0000) == 0) { n = 16; x <<= 16; }
+ if ((x & 0xFF000000) == 0) { n += 8; x <<= 8; }
+ if ((x & 0xF0000000) == 0) { n += 4; x <<= 4; }
+#endif
+ n += clz_table_4[x >> (sizeof(x)*8 - 4)];
+ }
+
+ return n - 1;
+}
+
+#ifdef DRFLAC_IMPLEMENT_CLZ_LZCNT
+static DRFLAC_INLINE drflac_bool32 drflac__is_lzcnt_supported(void)
+{
+ /* Fast compile time check for ARM. */
+#if defined(DRFLAC_HAS_LZCNT_INTRINSIC) && defined(DRFLAC_ARM) && (defined(__ARM_ARCH) && __ARM_ARCH >= 5)
+ return DRFLAC_TRUE;
+#else
+ /* If the compiler itself does not support the intrinsic then we'll need to return false. */
+ #ifdef DRFLAC_HAS_LZCNT_INTRINSIC
+ return drflac__gIsLZCNTSupported;
+ #else
+ return DRFLAC_FALSE;
+ #endif
+#endif
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac__clz_lzcnt(drflac_cache_t x)
+{
+ /*
+ It's critical for competitive decoding performance that this function be highly optimal. With MSVC we can use the __lzcnt64() and __lzcnt() intrinsics
+ to achieve good performance, however on GCC and Clang it's a little bit more annoying. The __builtin_clzl() and __builtin_clzll() intrinsics leave
+ it undefined as to the return value when `x` is 0. We need this to be well defined as returning 32 or 64, depending on whether or not it's a 32- or
+ 64-bit build. To work around this we would need to add a conditional to check for the x = 0 case, but this creates unnecessary inefficiency. To work
+ around this problem I have written some inline assembly to emit the LZCNT (x86) or CLZ (ARM) instruction directly which removes the need to include
+ the conditional. This has worked well in the past, but for some reason Clang's MSVC compatible driver, clang-cl, does not seem to be handling this
+ in the same way as the normal Clang driver. It seems that `clang-cl` is just outputting the wrong results sometimes, maybe due to some register
+ getting clobbered?
+
+ I'm not sure if this is a bug with dr_flac's inlined assembly (most likely), a bug in `clang-cl` or just a misunderstanding on my part with inline
+ assembly rules for `clang-cl`. If somebody can identify an error in dr_flac's inlined assembly I'm happy to get that fixed.
+
+ Fortunately there is an easy workaround for this. Clang implements MSVC-specific intrinsics for compatibility. It also defines _MSC_VER for extra
+ compatibility. We can therefore just check for _MSC_VER and use the MSVC intrinsic which, fortunately for us, Clang supports. It would still be nice
+ to know how to fix the inlined assembly for correctness sake, however.
+ */
+
+#if defined(_MSC_VER) /*&& !defined(__clang__)*/ /* <-- Intentionally wanting Clang to use the MSVC __lzcnt64/__lzcnt intrinsics due to above ^. */
+ #ifdef DRFLAC_64BIT
+ return (drflac_uint32)__lzcnt64(x);
+ #else
+ return (drflac_uint32)__lzcnt(x);
+ #endif
+#else
+ #if defined(__GNUC__) || defined(__clang__)
+ #if defined(DRFLAC_X64)
+ {
+ drflac_uint64 r;
+ __asm__ __volatile__ (
+ "lzcnt{ %1, %0| %0, %1}" : "=r"(r) : "r"(x) : "cc"
+ );
+
+ return (drflac_uint32)r;
+ }
+ #elif defined(DRFLAC_X86)
+ {
+ drflac_uint32 r;
+ __asm__ __volatile__ (
+ "lzcnt{l %1, %0| %0, %1}" : "=r"(r) : "r"(x) : "cc"
+ );
+
+ return r;
+ }
+ #elif defined(DRFLAC_ARM) && (defined(__ARM_ARCH) && __ARM_ARCH >= 5) && !defined(DRFLAC_64BIT) /* <-- I haven't tested 64-bit inline assembly, so only enabling this for the 32-bit build for now. */
+ {
+ unsigned int r;
+ __asm__ __volatile__ (
+ #if defined(DRFLAC_64BIT)
+ "clz %w[out], %w[in]" : [out]"=r"(r) : [in]"r"(x) /* <-- This is untested. If someone in the community could test this, that would be appreciated! */
+ #else
+ "clz %[out], %[in]" : [out]"=r"(r) : [in]"r"(x)
+ #endif
+ );
+
+ return r;
+ }
+ #else
+ if (x == 0) {
+ return sizeof(x)*8;
+ }
+ #ifdef DRFLAC_64BIT
+ return (drflac_uint32)__builtin_clzll((drflac_uint64)x);
+ #else
+ return (drflac_uint32)__builtin_clzl((drflac_uint32)x);
+ #endif
+ #endif
+ #else
+ /* Unsupported compiler. */
+ #error "This compiler does not support the lzcnt intrinsic."
+ #endif
+#endif
+}
+#endif
+
+#ifdef DRFLAC_IMPLEMENT_CLZ_MSVC
+#include <intrin.h> /* For BitScanReverse(). */
+
+static DRFLAC_INLINE drflac_uint32 drflac__clz_msvc(drflac_cache_t x)
+{
+ drflac_uint32 n;
+
+ if (x == 0) {
+ return sizeof(x)*8;
+ }
+
+#ifdef DRFLAC_64BIT
+ _BitScanReverse64((unsigned long*)&n, x);
+#else
+ _BitScanReverse((unsigned long*)&n, x);
+#endif
+ return sizeof(x)*8 - n - 1;
+}
+#endif
+
+static DRFLAC_INLINE drflac_uint32 drflac__clz(drflac_cache_t x)
+{
+#ifdef DRFLAC_IMPLEMENT_CLZ_LZCNT
+ if (drflac__is_lzcnt_supported()) {
+ return drflac__clz_lzcnt(x);
+ } else
+#endif
+ {
+#ifdef DRFLAC_IMPLEMENT_CLZ_MSVC
+ return drflac__clz_msvc(x);
+#else
+ return drflac__clz_software(x);
+#endif
+ }
+}
+
+
+static DRFLAC_INLINE drflac_bool32 drflac__seek_past_next_set_bit(drflac_bs* bs, unsigned int* pOffsetOut)
+{
+ drflac_uint32 zeroCounter = 0;
+ drflac_uint32 setBitOffsetPlus1;
+
+ while (bs->cache == 0) {
+ zeroCounter += (drflac_uint32)DRFLAC_CACHE_L1_BITS_REMAINING(bs);
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ setBitOffsetPlus1 = drflac__clz(bs->cache);
+ setBitOffsetPlus1 += 1;
+
+ bs->consumedBits += setBitOffsetPlus1;
+ bs->cache <<= setBitOffsetPlus1;
+
+ *pOffsetOut = zeroCounter + setBitOffsetPlus1 - 1;
+ return DRFLAC_TRUE;
+}
+
+
+
+static drflac_bool32 drflac__seek_to_byte(drflac_bs* bs, drflac_uint64 offsetFromStart)
+{
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(offsetFromStart > 0);
+
+ /*
+ Seeking from the start is not quite as trivial as it sounds because the onSeek callback takes a signed 32-bit integer (which
+ is intentional because it simplifies the implementation of the onSeek callbacks), however offsetFromStart is unsigned 64-bit.
+ To resolve we just need to do an initial seek from the start, and then a series of offset seeks to make up the remainder.
+ */
+ if (offsetFromStart > 0x7FFFFFFF) {
+ drflac_uint64 bytesRemaining = offsetFromStart;
+ if (!bs->onSeek(bs->pUserData, 0x7FFFFFFF, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+ bytesRemaining -= 0x7FFFFFFF;
+
+ while (bytesRemaining > 0x7FFFFFFF) {
+ if (!bs->onSeek(bs->pUserData, 0x7FFFFFFF, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ bytesRemaining -= 0x7FFFFFFF;
+ }
+
+ if (bytesRemaining > 0) {
+ if (!bs->onSeek(bs->pUserData, (int)bytesRemaining, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ if (!bs->onSeek(bs->pUserData, (int)offsetFromStart, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ /* The cache should be reset to force a reload of fresh data from the client. */
+ drflac__reset_cache(bs);
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_result drflac__read_utf8_coded_number(drflac_bs* bs, drflac_uint64* pNumberOut, drflac_uint8* pCRCOut)
+{
+ drflac_uint8 crc;
+ drflac_uint64 result;
+ drflac_uint8 utf8[7] = {0};
+ int byteCount;
+ int i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(pNumberOut != NULL);
+ DRFLAC_ASSERT(pCRCOut != NULL);
+
+ crc = *pCRCOut;
+
+ if (!drflac__read_uint8(bs, 8, utf8)) {
+ *pNumberOut = 0;
+ return DRFLAC_AT_END;
+ }
+ crc = drflac_crc8(crc, utf8[0], 8);
+
+ if ((utf8[0] & 0x80) == 0) {
+ *pNumberOut = utf8[0];
+ *pCRCOut = crc;
+ return DRFLAC_SUCCESS;
+ }
+
+ /*byteCount = 1;*/
+ if ((utf8[0] & 0xE0) == 0xC0) {
+ byteCount = 2;
+ } else if ((utf8[0] & 0xF0) == 0xE0) {
+ byteCount = 3;
+ } else if ((utf8[0] & 0xF8) == 0xF0) {
+ byteCount = 4;
+ } else if ((utf8[0] & 0xFC) == 0xF8) {
+ byteCount = 5;
+ } else if ((utf8[0] & 0xFE) == 0xFC) {
+ byteCount = 6;
+ } else if ((utf8[0] & 0xFF) == 0xFE) {
+ byteCount = 7;
+ } else {
+ *pNumberOut = 0;
+ return DRFLAC_CRC_MISMATCH; /* Bad UTF-8 encoding. */
+ }
+
+ /* Read extra bytes. */
+ DRFLAC_ASSERT(byteCount > 1);
+
+ result = (drflac_uint64)(utf8[0] & (0xFF >> (byteCount + 1)));
+ for (i = 1; i < byteCount; ++i) {
+ if (!drflac__read_uint8(bs, 8, utf8 + i)) {
+ *pNumberOut = 0;
+ return DRFLAC_AT_END;
+ }
+ crc = drflac_crc8(crc, utf8[i], 8);
+
+ result = (result << 6) | (utf8[i] & 0x3F);
+ }
+
+ *pNumberOut = result;
+ *pCRCOut = crc;
+ return DRFLAC_SUCCESS;
+}
+
+
+
+/*
+The next two functions are responsible for calculating the prediction.
+
+When the bits per sample is >16 we need to use 64-bit integer arithmetic because otherwise we'll run out of precision. It's
+safe to assume this will be slower on 32-bit platforms so we use a more optimal solution when the bits per sample is <=16.
+*/
+static DRFLAC_INLINE drflac_int32 drflac__calculate_prediction_32(drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pDecodedSamples)
+{
+ drflac_int32 prediction = 0;
+
+ DRFLAC_ASSERT(order <= 32);
+
+ /* 32-bit version. */
+
+ /* VC++ optimizes this to a single jmp. I've not yet verified this for other compilers. */
+ switch (order)
+ {
+ case 32: prediction += coefficients[31] * pDecodedSamples[-32];
+ case 31: prediction += coefficients[30] * pDecodedSamples[-31];
+ case 30: prediction += coefficients[29] * pDecodedSamples[-30];
+ case 29: prediction += coefficients[28] * pDecodedSamples[-29];
+ case 28: prediction += coefficients[27] * pDecodedSamples[-28];
+ case 27: prediction += coefficients[26] * pDecodedSamples[-27];
+ case 26: prediction += coefficients[25] * pDecodedSamples[-26];
+ case 25: prediction += coefficients[24] * pDecodedSamples[-25];
+ case 24: prediction += coefficients[23] * pDecodedSamples[-24];
+ case 23: prediction += coefficients[22] * pDecodedSamples[-23];
+ case 22: prediction += coefficients[21] * pDecodedSamples[-22];
+ case 21: prediction += coefficients[20] * pDecodedSamples[-21];
+ case 20: prediction += coefficients[19] * pDecodedSamples[-20];
+ case 19: prediction += coefficients[18] * pDecodedSamples[-19];
+ case 18: prediction += coefficients[17] * pDecodedSamples[-18];
+ case 17: prediction += coefficients[16] * pDecodedSamples[-17];
+ case 16: prediction += coefficients[15] * pDecodedSamples[-16];
+ case 15: prediction += coefficients[14] * pDecodedSamples[-15];
+ case 14: prediction += coefficients[13] * pDecodedSamples[-14];
+ case 13: prediction += coefficients[12] * pDecodedSamples[-13];
+ case 12: prediction += coefficients[11] * pDecodedSamples[-12];
+ case 11: prediction += coefficients[10] * pDecodedSamples[-11];
+ case 10: prediction += coefficients[ 9] * pDecodedSamples[-10];
+ case 9: prediction += coefficients[ 8] * pDecodedSamples[- 9];
+ case 8: prediction += coefficients[ 7] * pDecodedSamples[- 8];
+ case 7: prediction += coefficients[ 6] * pDecodedSamples[- 7];
+ case 6: prediction += coefficients[ 5] * pDecodedSamples[- 6];
+ case 5: prediction += coefficients[ 4] * pDecodedSamples[- 5];
+ case 4: prediction += coefficients[ 3] * pDecodedSamples[- 4];
+ case 3: prediction += coefficients[ 2] * pDecodedSamples[- 3];
+ case 2: prediction += coefficients[ 1] * pDecodedSamples[- 2];
+ case 1: prediction += coefficients[ 0] * pDecodedSamples[- 1];
+ }
+
+ return (drflac_int32)(prediction >> shift);
+}
+
+static DRFLAC_INLINE drflac_int32 drflac__calculate_prediction_64(drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pDecodedSamples)
+{
+ drflac_int64 prediction;
+
+ DRFLAC_ASSERT(order <= 32);
+
+ /* 64-bit version. */
+
+ /* This method is faster on the 32-bit build when compiling with VC++. See note below. */
+#ifndef DRFLAC_64BIT
+ if (order == 8)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ prediction += coefficients[7] * (drflac_int64)pDecodedSamples[-8];
+ }
+ else if (order == 7)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ }
+ else if (order == 3)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ }
+ else if (order == 6)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ }
+ else if (order == 5)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ }
+ else if (order == 4)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ }
+ else if (order == 12)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ prediction += coefficients[7] * (drflac_int64)pDecodedSamples[-8];
+ prediction += coefficients[8] * (drflac_int64)pDecodedSamples[-9];
+ prediction += coefficients[9] * (drflac_int64)pDecodedSamples[-10];
+ prediction += coefficients[10] * (drflac_int64)pDecodedSamples[-11];
+ prediction += coefficients[11] * (drflac_int64)pDecodedSamples[-12];
+ }
+ else if (order == 2)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ }
+ else if (order == 1)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ }
+ else if (order == 10)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ prediction += coefficients[7] * (drflac_int64)pDecodedSamples[-8];
+ prediction += coefficients[8] * (drflac_int64)pDecodedSamples[-9];
+ prediction += coefficients[9] * (drflac_int64)pDecodedSamples[-10];
+ }
+ else if (order == 9)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ prediction += coefficients[7] * (drflac_int64)pDecodedSamples[-8];
+ prediction += coefficients[8] * (drflac_int64)pDecodedSamples[-9];
+ }
+ else if (order == 11)
+ {
+ prediction = coefficients[0] * (drflac_int64)pDecodedSamples[-1];
+ prediction += coefficients[1] * (drflac_int64)pDecodedSamples[-2];
+ prediction += coefficients[2] * (drflac_int64)pDecodedSamples[-3];
+ prediction += coefficients[3] * (drflac_int64)pDecodedSamples[-4];
+ prediction += coefficients[4] * (drflac_int64)pDecodedSamples[-5];
+ prediction += coefficients[5] * (drflac_int64)pDecodedSamples[-6];
+ prediction += coefficients[6] * (drflac_int64)pDecodedSamples[-7];
+ prediction += coefficients[7] * (drflac_int64)pDecodedSamples[-8];
+ prediction += coefficients[8] * (drflac_int64)pDecodedSamples[-9];
+ prediction += coefficients[9] * (drflac_int64)pDecodedSamples[-10];
+ prediction += coefficients[10] * (drflac_int64)pDecodedSamples[-11];
+ }
+ else
+ {
+ int j;
+
+ prediction = 0;
+ for (j = 0; j < (int)order; ++j) {
+ prediction += coefficients[j] * (drflac_int64)pDecodedSamples[-j-1];
+ }
+ }
+#endif
+
+ /*
+ VC++ optimizes this to a single jmp instruction, but only the 64-bit build. The 32-bit build generates less efficient code for some
+ reason. The ugly version above is faster so we'll just switch between the two depending on the target platform.
+ */
+#ifdef DRFLAC_64BIT
+ prediction = 0;
+ switch (order)
+ {
+ case 32: prediction += coefficients[31] * (drflac_int64)pDecodedSamples[-32];
+ case 31: prediction += coefficients[30] * (drflac_int64)pDecodedSamples[-31];
+ case 30: prediction += coefficients[29] * (drflac_int64)pDecodedSamples[-30];
+ case 29: prediction += coefficients[28] * (drflac_int64)pDecodedSamples[-29];
+ case 28: prediction += coefficients[27] * (drflac_int64)pDecodedSamples[-28];
+ case 27: prediction += coefficients[26] * (drflac_int64)pDecodedSamples[-27];
+ case 26: prediction += coefficients[25] * (drflac_int64)pDecodedSamples[-26];
+ case 25: prediction += coefficients[24] * (drflac_int64)pDecodedSamples[-25];
+ case 24: prediction += coefficients[23] * (drflac_int64)pDecodedSamples[-24];
+ case 23: prediction += coefficients[22] * (drflac_int64)pDecodedSamples[-23];
+ case 22: prediction += coefficients[21] * (drflac_int64)pDecodedSamples[-22];
+ case 21: prediction += coefficients[20] * (drflac_int64)pDecodedSamples[-21];
+ case 20: prediction += coefficients[19] * (drflac_int64)pDecodedSamples[-20];
+ case 19: prediction += coefficients[18] * (drflac_int64)pDecodedSamples[-19];
+ case 18: prediction += coefficients[17] * (drflac_int64)pDecodedSamples[-18];
+ case 17: prediction += coefficients[16] * (drflac_int64)pDecodedSamples[-17];
+ case 16: prediction += coefficients[15] * (drflac_int64)pDecodedSamples[-16];
+ case 15: prediction += coefficients[14] * (drflac_int64)pDecodedSamples[-15];
+ case 14: prediction += coefficients[13] * (drflac_int64)pDecodedSamples[-14];
+ case 13: prediction += coefficients[12] * (drflac_int64)pDecodedSamples[-13];
+ case 12: prediction += coefficients[11] * (drflac_int64)pDecodedSamples[-12];
+ case 11: prediction += coefficients[10] * (drflac_int64)pDecodedSamples[-11];
+ case 10: prediction += coefficients[ 9] * (drflac_int64)pDecodedSamples[-10];
+ case 9: prediction += coefficients[ 8] * (drflac_int64)pDecodedSamples[- 9];
+ case 8: prediction += coefficients[ 7] * (drflac_int64)pDecodedSamples[- 8];
+ case 7: prediction += coefficients[ 6] * (drflac_int64)pDecodedSamples[- 7];
+ case 6: prediction += coefficients[ 5] * (drflac_int64)pDecodedSamples[- 6];
+ case 5: prediction += coefficients[ 4] * (drflac_int64)pDecodedSamples[- 5];
+ case 4: prediction += coefficients[ 3] * (drflac_int64)pDecodedSamples[- 4];
+ case 3: prediction += coefficients[ 2] * (drflac_int64)pDecodedSamples[- 3];
+ case 2: prediction += coefficients[ 1] * (drflac_int64)pDecodedSamples[- 2];
+ case 1: prediction += coefficients[ 0] * (drflac_int64)pDecodedSamples[- 1];
+ }
+#endif
+
+ return (drflac_int32)(prediction >> shift);
+}
+
+
+#if 0
+/*
+Reference implementation for reading and decoding samples with residual. This is intentionally left unoptimized for the
+sake of readability and should only be used as a reference.
+*/
+static drflac_bool32 drflac__decode_samples_with_residual__rice__reference(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ for (i = 0; i < count; ++i) {
+ drflac_uint32 zeroCounter = 0;
+ for (;;) {
+ drflac_uint8 bit;
+ if (!drflac__read_uint8(bs, 1, &bit)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (bit == 0) {
+ zeroCounter += 1;
+ } else {
+ break;
+ }
+ }
+
+ drflac_uint32 decodedRice;
+ if (riceParam > 0) {
+ if (!drflac__read_uint32(bs, riceParam, &decodedRice)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ decodedRice = 0;
+ }
+
+ decodedRice |= (zeroCounter << riceParam);
+ if ((decodedRice & 0x01)) {
+ decodedRice = ~(decodedRice >> 1);
+ } else {
+ decodedRice = (decodedRice >> 1);
+ }
+
+
+ if (bitsPerSample+shift >= 32) {
+ pSamplesOut[i] = decodedRice + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + i);
+ } else {
+ pSamplesOut[i] = decodedRice + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + i);
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+#endif
+
+#if 0
+static drflac_bool32 drflac__read_rice_parts__reference(drflac_bs* bs, drflac_uint8 riceParam, drflac_uint32* pZeroCounterOut, drflac_uint32* pRiceParamPartOut)
+{
+ drflac_uint32 zeroCounter = 0;
+ drflac_uint32 decodedRice;
+
+ for (;;) {
+ drflac_uint8 bit;
+ if (!drflac__read_uint8(bs, 1, &bit)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (bit == 0) {
+ zeroCounter += 1;
+ } else {
+ break;
+ }
+ }
+
+ if (riceParam > 0) {
+ if (!drflac__read_uint32(bs, riceParam, &decodedRice)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ decodedRice = 0;
+ }
+
+ *pZeroCounterOut = zeroCounter;
+ *pRiceParamPartOut = decodedRice;
+ return DRFLAC_TRUE;
+}
+#endif
+
+#if 0
+static DRFLAC_INLINE drflac_bool32 drflac__read_rice_parts(drflac_bs* bs, drflac_uint8 riceParam, drflac_uint32* pZeroCounterOut, drflac_uint32* pRiceParamPartOut)
+{
+ drflac_cache_t riceParamMask;
+ drflac_uint32 zeroCounter;
+ drflac_uint32 setBitOffsetPlus1;
+ drflac_uint32 riceParamPart;
+ drflac_uint32 riceLength;
+
+ DRFLAC_ASSERT(riceParam > 0); /* <-- riceParam should never be 0. drflac__read_rice_parts__param_equals_zero() should be used instead for this case. */
+
+ riceParamMask = DRFLAC_CACHE_L1_SELECTION_MASK(riceParam);
+
+ zeroCounter = 0;
+ while (bs->cache == 0) {
+ zeroCounter += (drflac_uint32)DRFLAC_CACHE_L1_BITS_REMAINING(bs);
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ setBitOffsetPlus1 = drflac__clz(bs->cache);
+ zeroCounter += setBitOffsetPlus1;
+ setBitOffsetPlus1 += 1;
+
+ riceLength = setBitOffsetPlus1 + riceParam;
+ if (riceLength < DRFLAC_CACHE_L1_BITS_REMAINING(bs)) {
+ riceParamPart = (drflac_uint32)((bs->cache & (riceParamMask >> setBitOffsetPlus1)) >> DRFLAC_CACHE_L1_SELECTION_SHIFT(bs, riceLength));
+
+ bs->consumedBits += riceLength;
+ bs->cache <<= riceLength;
+ } else {
+ drflac_uint32 bitCountLo;
+ drflac_cache_t resultHi;
+
+ bs->consumedBits += riceLength;
+ bs->cache <<= setBitOffsetPlus1 & (DRFLAC_CACHE_L1_SIZE_BITS(bs)-1); /* <-- Equivalent to "if (setBitOffsetPlus1 < DRFLAC_CACHE_L1_SIZE_BITS(bs)) { bs->cache <<= setBitOffsetPlus1; }" */
+
+ /* It straddles the cached data. It will never cover more than the next chunk. We just read the number in two parts and combine them. */
+ bitCountLo = bs->consumedBits - DRFLAC_CACHE_L1_SIZE_BITS(bs);
+ resultHi = DRFLAC_CACHE_L1_SELECT_AND_SHIFT(bs, riceParam); /* <-- Use DRFLAC_CACHE_L1_SELECT_AND_SHIFT_SAFE() if ever this function allows riceParam=0. */
+
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+#ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+#endif
+ bs->cache = drflac__be2host__cache_line(bs->cacheL2[bs->nextL2Line++]);
+ bs->consumedBits = 0;
+#ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs->cache;
+#endif
+ } else {
+ /* Slow path. We need to fetch more data from the client. */
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ riceParamPart = (drflac_uint32)(resultHi | DRFLAC_CACHE_L1_SELECT_AND_SHIFT_SAFE(bs, bitCountLo));
+
+ bs->consumedBits += bitCountLo;
+ bs->cache <<= bitCountLo;
+ }
+
+ pZeroCounterOut[0] = zeroCounter;
+ pRiceParamPartOut[0] = riceParamPart;
+
+ return DRFLAC_TRUE;
+}
+#endif
+
+static DRFLAC_INLINE drflac_bool32 drflac__read_rice_parts_x1(drflac_bs* bs, drflac_uint8 riceParam, drflac_uint32* pZeroCounterOut, drflac_uint32* pRiceParamPartOut)
+{
+ drflac_uint32 riceParamPlus1 = riceParam + 1;
+ /*drflac_cache_t riceParamPlus1Mask = DRFLAC_CACHE_L1_SELECTION_MASK(riceParamPlus1);*/
+ drflac_uint32 riceParamPlus1Shift = DRFLAC_CACHE_L1_SELECTION_SHIFT(bs, riceParamPlus1);
+ drflac_uint32 riceParamPlus1MaxConsumedBits = DRFLAC_CACHE_L1_SIZE_BITS(bs) - riceParamPlus1;
+
+ /*
+ The idea here is to use local variables for the cache in an attempt to encourage the compiler to store them in registers. I have
+ no idea how this will work in practice...
+ */
+ drflac_cache_t bs_cache = bs->cache;
+ drflac_uint32 bs_consumedBits = bs->consumedBits;
+
+ /* The first thing to do is find the first unset bit. Most likely a bit will be set in the current cache line. */
+ drflac_uint32 lzcount = drflac__clz(bs_cache);
+ if (lzcount < sizeof(bs_cache)*8) {
+ pZeroCounterOut[0] = lzcount;
+
+ /*
+ It is most likely that the riceParam part (which comes after the zero counter) is also on this cache line. When extracting
+ this, we include the set bit from the unary coded part because it simplifies cache management. This bit will be handled
+ outside of this function at a higher level.
+ */
+ extract_rice_param_part:
+ bs_cache <<= lzcount;
+ bs_consumedBits += lzcount;
+
+ if (bs_consumedBits <= riceParamPlus1MaxConsumedBits) {
+ /* Getting here means the rice parameter part is wholly contained within the current cache line. */
+ pRiceParamPartOut[0] = (drflac_uint32)(bs_cache >> riceParamPlus1Shift);
+ bs_cache <<= riceParamPlus1;
+ bs_consumedBits += riceParamPlus1;
+ } else {
+ drflac_uint32 riceParamPartHi;
+ drflac_uint32 riceParamPartLo;
+ drflac_uint32 riceParamPartLoBitCount;
+
+ /*
+ Getting here means the rice parameter part straddles the cache line. We need to read from the tail of the current cache
+ line, reload the cache, and then combine it with the head of the next cache line.
+ */
+
+ /* Grab the high part of the rice parameter part. */
+ riceParamPartHi = (drflac_uint32)(bs_cache >> riceParamPlus1Shift);
+
+ /* Before reloading the cache we need to grab the size in bits of the low part. */
+ riceParamPartLoBitCount = bs_consumedBits - riceParamPlus1MaxConsumedBits;
+ DRFLAC_ASSERT(riceParamPartLoBitCount > 0 && riceParamPartLoBitCount < 32);
+
+ /* Now reload the cache. */
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+ #ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+ #endif
+ bs_cache = drflac__be2host__cache_line(bs->cacheL2[bs->nextL2Line++]);
+ bs_consumedBits = riceParamPartLoBitCount;
+ #ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs_cache;
+ #endif
+ } else {
+ /* Slow path. We need to fetch more data from the client. */
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ bs_cache = bs->cache;
+ bs_consumedBits = bs->consumedBits + riceParamPartLoBitCount;
+ }
+
+ /* We should now have enough information to construct the rice parameter part. */
+ riceParamPartLo = (drflac_uint32)(bs_cache >> (DRFLAC_CACHE_L1_SELECTION_SHIFT(bs, riceParamPartLoBitCount)));
+ pRiceParamPartOut[0] = riceParamPartHi | riceParamPartLo;
+
+ bs_cache <<= riceParamPartLoBitCount;
+ }
+ } else {
+ /*
+ Getting here means there are no bits set on the cache line. This is a less optimal case because we just wasted a call
+ to drflac__clz() and we need to reload the cache.
+ */
+ drflac_uint32 zeroCounter = (drflac_uint32)(DRFLAC_CACHE_L1_SIZE_BITS(bs) - bs_consumedBits);
+ for (;;) {
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+ #ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+ #endif
+ bs_cache = drflac__be2host__cache_line(bs->cacheL2[bs->nextL2Line++]);
+ bs_consumedBits = 0;
+ #ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs_cache;
+ #endif
+ } else {
+ /* Slow path. We need to fetch more data from the client. */
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ bs_cache = bs->cache;
+ bs_consumedBits = bs->consumedBits;
+ }
+
+ lzcount = drflac__clz(bs_cache);
+ zeroCounter += lzcount;
+
+ if (lzcount < sizeof(bs_cache)*8) {
+ break;
+ }
+ }
+
+ pZeroCounterOut[0] = zeroCounter;
+ goto extract_rice_param_part;
+ }
+
+ /* Make sure the cache is restored at the end of it all. */
+ bs->cache = bs_cache;
+ bs->consumedBits = bs_consumedBits;
+
+ return DRFLAC_TRUE;
+}
+
+static DRFLAC_INLINE drflac_bool32 drflac__seek_rice_parts(drflac_bs* bs, drflac_uint8 riceParam)
+{
+ drflac_uint32 riceParamPlus1 = riceParam + 1;
+ drflac_uint32 riceParamPlus1MaxConsumedBits = DRFLAC_CACHE_L1_SIZE_BITS(bs) - riceParamPlus1;
+
+ /*
+ The idea here is to use local variables for the cache in an attempt to encourage the compiler to store them in registers. I have
+ no idea how this will work in practice...
+ */
+ drflac_cache_t bs_cache = bs->cache;
+ drflac_uint32 bs_consumedBits = bs->consumedBits;
+
+ /* The first thing to do is find the first unset bit. Most likely a bit will be set in the current cache line. */
+ drflac_uint32 lzcount = drflac__clz(bs_cache);
+ if (lzcount < sizeof(bs_cache)*8) {
+ /*
+ It is most likely that the riceParam part (which comes after the zero counter) is also on this cache line. When extracting
+ this, we include the set bit from the unary coded part because it simplifies cache management. This bit will be handled
+ outside of this function at a higher level.
+ */
+ extract_rice_param_part:
+ bs_cache <<= lzcount;
+ bs_consumedBits += lzcount;
+
+ if (bs_consumedBits <= riceParamPlus1MaxConsumedBits) {
+ /* Getting here means the rice parameter part is wholly contained within the current cache line. */
+ bs_cache <<= riceParamPlus1;
+ bs_consumedBits += riceParamPlus1;
+ } else {
+ /*
+ Getting here means the rice parameter part straddles the cache line. We need to read from the tail of the current cache
+ line, reload the cache, and then combine it with the head of the next cache line.
+ */
+
+ /* Before reloading the cache we need to grab the size in bits of the low part. */
+ drflac_uint32 riceParamPartLoBitCount = bs_consumedBits - riceParamPlus1MaxConsumedBits;
+ DRFLAC_ASSERT(riceParamPartLoBitCount > 0 && riceParamPartLoBitCount < 32);
+
+ /* Now reload the cache. */
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+ #ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+ #endif
+ bs_cache = drflac__be2host__cache_line(bs->cacheL2[bs->nextL2Line++]);
+ bs_consumedBits = riceParamPartLoBitCount;
+ #ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs_cache;
+ #endif
+ } else {
+ /* Slow path. We need to fetch more data from the client. */
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ bs_cache = bs->cache;
+ bs_consumedBits = bs->consumedBits + riceParamPartLoBitCount;
+ }
+
+ bs_cache <<= riceParamPartLoBitCount;
+ }
+ } else {
+ /*
+ Getting here means there are no bits set on the cache line. This is a less optimal case because we just wasted a call
+ to drflac__clz() and we need to reload the cache.
+ */
+ for (;;) {
+ if (bs->nextL2Line < DRFLAC_CACHE_L2_LINE_COUNT(bs)) {
+ #ifndef DR_FLAC_NO_CRC
+ drflac__update_crc16(bs);
+ #endif
+ bs_cache = drflac__be2host__cache_line(bs->cacheL2[bs->nextL2Line++]);
+ bs_consumedBits = 0;
+ #ifndef DR_FLAC_NO_CRC
+ bs->crc16Cache = bs_cache;
+ #endif
+ } else {
+ /* Slow path. We need to fetch more data from the client. */
+ if (!drflac__reload_cache(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ bs_cache = bs->cache;
+ bs_consumedBits = bs->consumedBits;
+ }
+
+ lzcount = drflac__clz(bs_cache);
+ if (lzcount < sizeof(bs_cache)*8) {
+ break;
+ }
+ }
+
+ goto extract_rice_param_part;
+ }
+
+ /* Make sure the cache is restored at the end of it all. */
+ bs->cache = bs_cache;
+ bs->consumedBits = bs_consumedBits;
+
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__scalar_zeroorder(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+ drflac_uint32 zeroCountPart0;
+ drflac_uint32 riceParamPart0;
+ drflac_uint32 riceParamMask;
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ (void)bitsPerSample;
+ (void)order;
+ (void)shift;
+ (void)coefficients;
+
+ riceParamMask = (drflac_uint32)~((~0UL) << riceParam);
+
+ i = 0;
+ while (i < count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart0, &riceParamPart0)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamPart0 &= riceParamMask;
+ riceParamPart0 |= (zeroCountPart0 << riceParam);
+ riceParamPart0 = (riceParamPart0 >> 1) ^ t[riceParamPart0 & 0x01];
+
+ pSamplesOut[i] = riceParamPart0;
+
+ i += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__scalar(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+ drflac_uint32 zeroCountPart0 = 0;
+ drflac_uint32 zeroCountPart1 = 0;
+ drflac_uint32 zeroCountPart2 = 0;
+ drflac_uint32 zeroCountPart3 = 0;
+ drflac_uint32 riceParamPart0 = 0;
+ drflac_uint32 riceParamPart1 = 0;
+ drflac_uint32 riceParamPart2 = 0;
+ drflac_uint32 riceParamPart3 = 0;
+ drflac_uint32 riceParamMask;
+ const drflac_int32* pSamplesOutEnd;
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ if (order == 0) {
+ return drflac__decode_samples_with_residual__rice__scalar_zeroorder(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ }
+
+ riceParamMask = (drflac_uint32)~((~0UL) << riceParam);
+ pSamplesOutEnd = pSamplesOut + (count & ~3);
+
+ if (bitsPerSample+shift > 32) {
+ while (pSamplesOut < pSamplesOutEnd) {
+ /*
+ Rice extraction. It's faster to do this one at a time against local variables than it is to use the x4 version
+ against an array. Not sure why, but perhaps it's making more efficient use of registers?
+ */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart0, &riceParamPart0) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart1, &riceParamPart1) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart2, &riceParamPart2) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart3, &riceParamPart3)) {
+ return DRFLAC_FALSE;
+ }
+
+ riceParamPart0 &= riceParamMask;
+ riceParamPart1 &= riceParamMask;
+ riceParamPart2 &= riceParamMask;
+ riceParamPart3 &= riceParamMask;
+
+ riceParamPart0 |= (zeroCountPart0 << riceParam);
+ riceParamPart1 |= (zeroCountPart1 << riceParam);
+ riceParamPart2 |= (zeroCountPart2 << riceParam);
+ riceParamPart3 |= (zeroCountPart3 << riceParam);
+
+ riceParamPart0 = (riceParamPart0 >> 1) ^ t[riceParamPart0 & 0x01];
+ riceParamPart1 = (riceParamPart1 >> 1) ^ t[riceParamPart1 & 0x01];
+ riceParamPart2 = (riceParamPart2 >> 1) ^ t[riceParamPart2 & 0x01];
+ riceParamPart3 = (riceParamPart3 >> 1) ^ t[riceParamPart3 & 0x01];
+
+ pSamplesOut[0] = riceParamPart0 + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + 0);
+ pSamplesOut[1] = riceParamPart1 + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + 1);
+ pSamplesOut[2] = riceParamPart2 + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + 2);
+ pSamplesOut[3] = riceParamPart3 + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + 3);
+
+ pSamplesOut += 4;
+ }
+ } else {
+ while (pSamplesOut < pSamplesOutEnd) {
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart0, &riceParamPart0) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart1, &riceParamPart1) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart2, &riceParamPart2) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart3, &riceParamPart3)) {
+ return DRFLAC_FALSE;
+ }
+
+ riceParamPart0 &= riceParamMask;
+ riceParamPart1 &= riceParamMask;
+ riceParamPart2 &= riceParamMask;
+ riceParamPart3 &= riceParamMask;
+
+ riceParamPart0 |= (zeroCountPart0 << riceParam);
+ riceParamPart1 |= (zeroCountPart1 << riceParam);
+ riceParamPart2 |= (zeroCountPart2 << riceParam);
+ riceParamPart3 |= (zeroCountPart3 << riceParam);
+
+ riceParamPart0 = (riceParamPart0 >> 1) ^ t[riceParamPart0 & 0x01];
+ riceParamPart1 = (riceParamPart1 >> 1) ^ t[riceParamPart1 & 0x01];
+ riceParamPart2 = (riceParamPart2 >> 1) ^ t[riceParamPart2 & 0x01];
+ riceParamPart3 = (riceParamPart3 >> 1) ^ t[riceParamPart3 & 0x01];
+
+ pSamplesOut[0] = riceParamPart0 + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + 0);
+ pSamplesOut[1] = riceParamPart1 + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + 1);
+ pSamplesOut[2] = riceParamPart2 + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + 2);
+ pSamplesOut[3] = riceParamPart3 + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + 3);
+
+ pSamplesOut += 4;
+ }
+ }
+
+ i = (count & ~3);
+ while (i < count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountPart0, &riceParamPart0)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamPart0 &= riceParamMask;
+ riceParamPart0 |= (zeroCountPart0 << riceParam);
+ riceParamPart0 = (riceParamPart0 >> 1) ^ t[riceParamPart0 & 0x01];
+ /*riceParamPart0 = (riceParamPart0 >> 1) ^ (~(riceParamPart0 & 0x01) + 1);*/
+
+ /* Sample reconstruction. */
+ if (bitsPerSample+shift > 32) {
+ pSamplesOut[0] = riceParamPart0 + drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + 0);
+ } else {
+ pSamplesOut[0] = riceParamPart0 + drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + 0);
+ }
+
+ i += 1;
+ pSamplesOut += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE __m128i drflac__mm_packs_interleaved_epi32(__m128i a, __m128i b)
+{
+ __m128i r;
+
+ /* Pack. */
+ r = _mm_packs_epi32(a, b);
+
+ /* a3a2 a1a0 b3b2 b1b0 -> a3a2 b3b2 a1a0 b1b0 */
+ r = _mm_shuffle_epi32(r, _MM_SHUFFLE(3, 1, 2, 0));
+
+ /* a3a2 b3b2 a1a0 b1b0 -> a3b3 a2b2 a1b1 a0b0 */
+ r = _mm_shufflehi_epi16(r, _MM_SHUFFLE(3, 1, 2, 0));
+ r = _mm_shufflelo_epi16(r, _MM_SHUFFLE(3, 1, 2, 0));
+
+ return r;
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_SSE41)
+static DRFLAC_INLINE __m128i drflac__mm_not_si128(__m128i a)
+{
+ return _mm_xor_si128(a, _mm_cmpeq_epi32(_mm_setzero_si128(), _mm_setzero_si128()));
+}
+
+static DRFLAC_INLINE __m128i drflac__mm_hadd_epi32(__m128i x)
+{
+ __m128i x64 = _mm_add_epi32(x, _mm_shuffle_epi32(x, _MM_SHUFFLE(1, 0, 3, 2)));
+ __m128i x32 = _mm_shufflelo_epi16(x64, _MM_SHUFFLE(1, 0, 3, 2));
+ return _mm_add_epi32(x64, x32);
+}
+
+static DRFLAC_INLINE __m128i drflac__mm_hadd_epi64(__m128i x)
+{
+ return _mm_add_epi64(x, _mm_shuffle_epi32(x, _MM_SHUFFLE(1, 0, 3, 2)));
+}
+
+static DRFLAC_INLINE __m128i drflac__mm_srai_epi64(__m128i x, int count)
+{
+ /*
+ To simplify this we are assuming count < 32. This restriction allows us to work on a low side and a high side. The low side
+ is shifted with zero bits, whereas the right side is shifted with sign bits.
+ */
+ __m128i lo = _mm_srli_epi64(x, count);
+ __m128i hi = _mm_srai_epi32(x, count);
+
+ hi = _mm_and_si128(hi, _mm_set_epi32(0xFFFFFFFF, 0, 0xFFFFFFFF, 0)); /* The high part needs to have the low part cleared. */
+
+ return _mm_or_si128(lo, hi);
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__sse41_32(drflac_bs* bs, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ int i;
+ drflac_uint32 riceParamMask;
+ drflac_int32* pDecodedSamples = pSamplesOut;
+ drflac_int32* pDecodedSamplesEnd = pSamplesOut + (count & ~3);
+ drflac_uint32 zeroCountParts0 = 0;
+ drflac_uint32 zeroCountParts1 = 0;
+ drflac_uint32 zeroCountParts2 = 0;
+ drflac_uint32 zeroCountParts3 = 0;
+ drflac_uint32 riceParamParts0 = 0;
+ drflac_uint32 riceParamParts1 = 0;
+ drflac_uint32 riceParamParts2 = 0;
+ drflac_uint32 riceParamParts3 = 0;
+ __m128i coefficients128_0;
+ __m128i coefficients128_4;
+ __m128i coefficients128_8;
+ __m128i samples128_0;
+ __m128i samples128_4;
+ __m128i samples128_8;
+ __m128i riceParamMask128;
+
+ const drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+
+ riceParamMask = (drflac_uint32)~((~0UL) << riceParam);
+ riceParamMask128 = _mm_set1_epi32(riceParamMask);
+
+ /* Pre-load. */
+ coefficients128_0 = _mm_setzero_si128();
+ coefficients128_4 = _mm_setzero_si128();
+ coefficients128_8 = _mm_setzero_si128();
+
+ samples128_0 = _mm_setzero_si128();
+ samples128_4 = _mm_setzero_si128();
+ samples128_8 = _mm_setzero_si128();
+
+ /*
+ Pre-loading the coefficients and prior samples is annoying because we need to ensure we don't try reading more than
+ what's available in the input buffers. It would be convenient to use a fall-through switch to do this, but this results
+ in strict aliasing warnings with GCC. To work around this I'm just doing something hacky. This feels a bit convoluted
+ so I think there's opportunity for this to be simplified.
+ */
+#if 1
+ {
+ int runningOrder = order;
+
+ /* 0 - 3. */
+ if (runningOrder >= 4) {
+ coefficients128_0 = _mm_loadu_si128((const __m128i*)(coefficients + 0));
+ samples128_0 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 4));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_0 = _mm_set_epi32(0, coefficients[2], coefficients[1], coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], pSamplesOut[-2], pSamplesOut[-3], 0); break;
+ case 2: coefficients128_0 = _mm_set_epi32(0, 0, coefficients[1], coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], pSamplesOut[-2], 0, 0); break;
+ case 1: coefficients128_0 = _mm_set_epi32(0, 0, 0, coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* 4 - 7 */
+ if (runningOrder >= 4) {
+ coefficients128_4 = _mm_loadu_si128((const __m128i*)(coefficients + 4));
+ samples128_4 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 8));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_4 = _mm_set_epi32(0, coefficients[6], coefficients[5], coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], pSamplesOut[-6], pSamplesOut[-7], 0); break;
+ case 2: coefficients128_4 = _mm_set_epi32(0, 0, coefficients[5], coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], pSamplesOut[-6], 0, 0); break;
+ case 1: coefficients128_4 = _mm_set_epi32(0, 0, 0, coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* 8 - 11 */
+ if (runningOrder == 4) {
+ coefficients128_8 = _mm_loadu_si128((const __m128i*)(coefficients + 8));
+ samples128_8 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 12));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_8 = _mm_set_epi32(0, coefficients[10], coefficients[9], coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], pSamplesOut[-10], pSamplesOut[-11], 0); break;
+ case 2: coefficients128_8 = _mm_set_epi32(0, 0, coefficients[9], coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], pSamplesOut[-10], 0, 0); break;
+ case 1: coefficients128_8 = _mm_set_epi32(0, 0, 0, coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* Coefficients need to be shuffled for our streaming algorithm below to work. Samples are already in the correct order from the loading routine above. */
+ coefficients128_0 = _mm_shuffle_epi32(coefficients128_0, _MM_SHUFFLE(0, 1, 2, 3));
+ coefficients128_4 = _mm_shuffle_epi32(coefficients128_4, _MM_SHUFFLE(0, 1, 2, 3));
+ coefficients128_8 = _mm_shuffle_epi32(coefficients128_8, _MM_SHUFFLE(0, 1, 2, 3));
+ }
+#else
+ /* This causes strict-aliasing warnings with GCC. */
+ switch (order)
+ {
+ case 12: ((drflac_int32*)&coefficients128_8)[0] = coefficients[11]; ((drflac_int32*)&samples128_8)[0] = pDecodedSamples[-12];
+ case 11: ((drflac_int32*)&coefficients128_8)[1] = coefficients[10]; ((drflac_int32*)&samples128_8)[1] = pDecodedSamples[-11];
+ case 10: ((drflac_int32*)&coefficients128_8)[2] = coefficients[ 9]; ((drflac_int32*)&samples128_8)[2] = pDecodedSamples[-10];
+ case 9: ((drflac_int32*)&coefficients128_8)[3] = coefficients[ 8]; ((drflac_int32*)&samples128_8)[3] = pDecodedSamples[- 9];
+ case 8: ((drflac_int32*)&coefficients128_4)[0] = coefficients[ 7]; ((drflac_int32*)&samples128_4)[0] = pDecodedSamples[- 8];
+ case 7: ((drflac_int32*)&coefficients128_4)[1] = coefficients[ 6]; ((drflac_int32*)&samples128_4)[1] = pDecodedSamples[- 7];
+ case 6: ((drflac_int32*)&coefficients128_4)[2] = coefficients[ 5]; ((drflac_int32*)&samples128_4)[2] = pDecodedSamples[- 6];
+ case 5: ((drflac_int32*)&coefficients128_4)[3] = coefficients[ 4]; ((drflac_int32*)&samples128_4)[3] = pDecodedSamples[- 5];
+ case 4: ((drflac_int32*)&coefficients128_0)[0] = coefficients[ 3]; ((drflac_int32*)&samples128_0)[0] = pDecodedSamples[- 4];
+ case 3: ((drflac_int32*)&coefficients128_0)[1] = coefficients[ 2]; ((drflac_int32*)&samples128_0)[1] = pDecodedSamples[- 3];
+ case 2: ((drflac_int32*)&coefficients128_0)[2] = coefficients[ 1]; ((drflac_int32*)&samples128_0)[2] = pDecodedSamples[- 2];
+ case 1: ((drflac_int32*)&coefficients128_0)[3] = coefficients[ 0]; ((drflac_int32*)&samples128_0)[3] = pDecodedSamples[- 1];
+ }
+#endif
+
+ /* For this version we are doing one sample at a time. */
+ while (pDecodedSamples < pDecodedSamplesEnd) {
+ __m128i prediction128;
+ __m128i zeroCountPart128;
+ __m128i riceParamPart128;
+
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts0, &riceParamParts0) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts1, &riceParamParts1) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts2, &riceParamParts2) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts3, &riceParamParts3)) {
+ return DRFLAC_FALSE;
+ }
+
+ zeroCountPart128 = _mm_set_epi32(zeroCountParts3, zeroCountParts2, zeroCountParts1, zeroCountParts0);
+ riceParamPart128 = _mm_set_epi32(riceParamParts3, riceParamParts2, riceParamParts1, riceParamParts0);
+
+ riceParamPart128 = _mm_and_si128(riceParamPart128, riceParamMask128);
+ riceParamPart128 = _mm_or_si128(riceParamPart128, _mm_slli_epi32(zeroCountPart128, riceParam));
+ riceParamPart128 = _mm_xor_si128(_mm_srli_epi32(riceParamPart128, 1), _mm_add_epi32(drflac__mm_not_si128(_mm_and_si128(riceParamPart128, _mm_set1_epi32(0x01))), _mm_set1_epi32(0x01))); /* <-- SSE2 compatible */
+ /*riceParamPart128 = _mm_xor_si128(_mm_srli_epi32(riceParamPart128, 1), _mm_mullo_epi32(_mm_and_si128(riceParamPart128, _mm_set1_epi32(0x01)), _mm_set1_epi32(0xFFFFFFFF)));*/ /* <-- Only supported from SSE4.1 and is slower in my testing... */
+
+ if (order <= 4) {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = _mm_mullo_epi32(coefficients128_0, samples128_0);
+
+ /* Horizontal add and shift. */
+ prediction128 = drflac__mm_hadd_epi32(prediction128);
+ prediction128 = _mm_srai_epi32(prediction128, shift);
+ prediction128 = _mm_add_epi32(riceParamPart128, prediction128);
+
+ samples128_0 = _mm_alignr_epi8(prediction128, samples128_0, 4);
+ riceParamPart128 = _mm_alignr_epi8(_mm_setzero_si128(), riceParamPart128, 4);
+ }
+ } else if (order <= 8) {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = _mm_mullo_epi32(coefficients128_4, samples128_4);
+ prediction128 = _mm_add_epi32(prediction128, _mm_mullo_epi32(coefficients128_0, samples128_0));
+
+ /* Horizontal add and shift. */
+ prediction128 = drflac__mm_hadd_epi32(prediction128);
+ prediction128 = _mm_srai_epi32(prediction128, shift);
+ prediction128 = _mm_add_epi32(riceParamPart128, prediction128);
+
+ samples128_4 = _mm_alignr_epi8(samples128_0, samples128_4, 4);
+ samples128_0 = _mm_alignr_epi8(prediction128, samples128_0, 4);
+ riceParamPart128 = _mm_alignr_epi8(_mm_setzero_si128(), riceParamPart128, 4);
+ }
+ } else {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = _mm_mullo_epi32(coefficients128_8, samples128_8);
+ prediction128 = _mm_add_epi32(prediction128, _mm_mullo_epi32(coefficients128_4, samples128_4));
+ prediction128 = _mm_add_epi32(prediction128, _mm_mullo_epi32(coefficients128_0, samples128_0));
+
+ /* Horizontal add and shift. */
+ prediction128 = drflac__mm_hadd_epi32(prediction128);
+ prediction128 = _mm_srai_epi32(prediction128, shift);
+ prediction128 = _mm_add_epi32(riceParamPart128, prediction128);
+
+ samples128_8 = _mm_alignr_epi8(samples128_4, samples128_8, 4);
+ samples128_4 = _mm_alignr_epi8(samples128_0, samples128_4, 4);
+ samples128_0 = _mm_alignr_epi8(prediction128, samples128_0, 4);
+ riceParamPart128 = _mm_alignr_epi8(_mm_setzero_si128(), riceParamPart128, 4);
+ }
+ }
+
+ /* We store samples in groups of 4. */
+ _mm_storeu_si128((__m128i*)pDecodedSamples, samples128_0);
+ pDecodedSamples += 4;
+ }
+
+ /* Make sure we process the last few samples. */
+ i = (count & ~3);
+ while (i < (int)count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts0, &riceParamParts0)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamParts0 &= riceParamMask;
+ riceParamParts0 |= (zeroCountParts0 << riceParam);
+ riceParamParts0 = (riceParamParts0 >> 1) ^ t[riceParamParts0 & 0x01];
+
+ /* Sample reconstruction. */
+ pDecodedSamples[0] = riceParamParts0 + drflac__calculate_prediction_32(order, shift, coefficients, pDecodedSamples);
+
+ i += 1;
+ pDecodedSamples += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__sse41_64(drflac_bs* bs, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ int i;
+ drflac_uint32 riceParamMask;
+ drflac_int32* pDecodedSamples = pSamplesOut;
+ drflac_int32* pDecodedSamplesEnd = pSamplesOut + (count & ~3);
+ drflac_uint32 zeroCountParts0 = 0;
+ drflac_uint32 zeroCountParts1 = 0;
+ drflac_uint32 zeroCountParts2 = 0;
+ drflac_uint32 zeroCountParts3 = 0;
+ drflac_uint32 riceParamParts0 = 0;
+ drflac_uint32 riceParamParts1 = 0;
+ drflac_uint32 riceParamParts2 = 0;
+ drflac_uint32 riceParamParts3 = 0;
+ __m128i coefficients128_0;
+ __m128i coefficients128_4;
+ __m128i coefficients128_8;
+ __m128i samples128_0;
+ __m128i samples128_4;
+ __m128i samples128_8;
+ __m128i prediction128;
+ __m128i riceParamMask128;
+
+ const drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+
+ DRFLAC_ASSERT(order <= 12);
+
+ riceParamMask = (drflac_uint32)~((~0UL) << riceParam);
+ riceParamMask128 = _mm_set1_epi32(riceParamMask);
+
+ prediction128 = _mm_setzero_si128();
+
+ /* Pre-load. */
+ coefficients128_0 = _mm_setzero_si128();
+ coefficients128_4 = _mm_setzero_si128();
+ coefficients128_8 = _mm_setzero_si128();
+
+ samples128_0 = _mm_setzero_si128();
+ samples128_4 = _mm_setzero_si128();
+ samples128_8 = _mm_setzero_si128();
+
+#if 1
+ {
+ int runningOrder = order;
+
+ /* 0 - 3. */
+ if (runningOrder >= 4) {
+ coefficients128_0 = _mm_loadu_si128((const __m128i*)(coefficients + 0));
+ samples128_0 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 4));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_0 = _mm_set_epi32(0, coefficients[2], coefficients[1], coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], pSamplesOut[-2], pSamplesOut[-3], 0); break;
+ case 2: coefficients128_0 = _mm_set_epi32(0, 0, coefficients[1], coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], pSamplesOut[-2], 0, 0); break;
+ case 1: coefficients128_0 = _mm_set_epi32(0, 0, 0, coefficients[0]); samples128_0 = _mm_set_epi32(pSamplesOut[-1], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* 4 - 7 */
+ if (runningOrder >= 4) {
+ coefficients128_4 = _mm_loadu_si128((const __m128i*)(coefficients + 4));
+ samples128_4 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 8));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_4 = _mm_set_epi32(0, coefficients[6], coefficients[5], coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], pSamplesOut[-6], pSamplesOut[-7], 0); break;
+ case 2: coefficients128_4 = _mm_set_epi32(0, 0, coefficients[5], coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], pSamplesOut[-6], 0, 0); break;
+ case 1: coefficients128_4 = _mm_set_epi32(0, 0, 0, coefficients[4]); samples128_4 = _mm_set_epi32(pSamplesOut[-5], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* 8 - 11 */
+ if (runningOrder == 4) {
+ coefficients128_8 = _mm_loadu_si128((const __m128i*)(coefficients + 8));
+ samples128_8 = _mm_loadu_si128((const __m128i*)(pSamplesOut - 12));
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: coefficients128_8 = _mm_set_epi32(0, coefficients[10], coefficients[9], coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], pSamplesOut[-10], pSamplesOut[-11], 0); break;
+ case 2: coefficients128_8 = _mm_set_epi32(0, 0, coefficients[9], coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], pSamplesOut[-10], 0, 0); break;
+ case 1: coefficients128_8 = _mm_set_epi32(0, 0, 0, coefficients[8]); samples128_8 = _mm_set_epi32(pSamplesOut[-9], 0, 0, 0); break;
+ }
+ runningOrder = 0;
+ }
+
+ /* Coefficients need to be shuffled for our streaming algorithm below to work. Samples are already in the correct order from the loading routine above. */
+ coefficients128_0 = _mm_shuffle_epi32(coefficients128_0, _MM_SHUFFLE(0, 1, 2, 3));
+ coefficients128_4 = _mm_shuffle_epi32(coefficients128_4, _MM_SHUFFLE(0, 1, 2, 3));
+ coefficients128_8 = _mm_shuffle_epi32(coefficients128_8, _MM_SHUFFLE(0, 1, 2, 3));
+ }
+#else
+ switch (order)
+ {
+ case 12: ((drflac_int32*)&coefficients128_8)[0] = coefficients[11]; ((drflac_int32*)&samples128_8)[0] = pDecodedSamples[-12];
+ case 11: ((drflac_int32*)&coefficients128_8)[1] = coefficients[10]; ((drflac_int32*)&samples128_8)[1] = pDecodedSamples[-11];
+ case 10: ((drflac_int32*)&coefficients128_8)[2] = coefficients[ 9]; ((drflac_int32*)&samples128_8)[2] = pDecodedSamples[-10];
+ case 9: ((drflac_int32*)&coefficients128_8)[3] = coefficients[ 8]; ((drflac_int32*)&samples128_8)[3] = pDecodedSamples[- 9];
+ case 8: ((drflac_int32*)&coefficients128_4)[0] = coefficients[ 7]; ((drflac_int32*)&samples128_4)[0] = pDecodedSamples[- 8];
+ case 7: ((drflac_int32*)&coefficients128_4)[1] = coefficients[ 6]; ((drflac_int32*)&samples128_4)[1] = pDecodedSamples[- 7];
+ case 6: ((drflac_int32*)&coefficients128_4)[2] = coefficients[ 5]; ((drflac_int32*)&samples128_4)[2] = pDecodedSamples[- 6];
+ case 5: ((drflac_int32*)&coefficients128_4)[3] = coefficients[ 4]; ((drflac_int32*)&samples128_4)[3] = pDecodedSamples[- 5];
+ case 4: ((drflac_int32*)&coefficients128_0)[0] = coefficients[ 3]; ((drflac_int32*)&samples128_0)[0] = pDecodedSamples[- 4];
+ case 3: ((drflac_int32*)&coefficients128_0)[1] = coefficients[ 2]; ((drflac_int32*)&samples128_0)[1] = pDecodedSamples[- 3];
+ case 2: ((drflac_int32*)&coefficients128_0)[2] = coefficients[ 1]; ((drflac_int32*)&samples128_0)[2] = pDecodedSamples[- 2];
+ case 1: ((drflac_int32*)&coefficients128_0)[3] = coefficients[ 0]; ((drflac_int32*)&samples128_0)[3] = pDecodedSamples[- 1];
+ }
+#endif
+
+ /* For this version we are doing one sample at a time. */
+ while (pDecodedSamples < pDecodedSamplesEnd) {
+ __m128i zeroCountPart128;
+ __m128i riceParamPart128;
+
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts0, &riceParamParts0) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts1, &riceParamParts1) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts2, &riceParamParts2) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts3, &riceParamParts3)) {
+ return DRFLAC_FALSE;
+ }
+
+ zeroCountPart128 = _mm_set_epi32(zeroCountParts3, zeroCountParts2, zeroCountParts1, zeroCountParts0);
+ riceParamPart128 = _mm_set_epi32(riceParamParts3, riceParamParts2, riceParamParts1, riceParamParts0);
+
+ riceParamPart128 = _mm_and_si128(riceParamPart128, riceParamMask128);
+ riceParamPart128 = _mm_or_si128(riceParamPart128, _mm_slli_epi32(zeroCountPart128, riceParam));
+ riceParamPart128 = _mm_xor_si128(_mm_srli_epi32(riceParamPart128, 1), _mm_add_epi32(drflac__mm_not_si128(_mm_and_si128(riceParamPart128, _mm_set1_epi32(1))), _mm_set1_epi32(1)));
+
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = _mm_xor_si128(prediction128, prediction128); /* Reset to 0. */
+
+ switch (order)
+ {
+ case 12:
+ case 11: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_8, _MM_SHUFFLE(1, 1, 0, 0)), _mm_shuffle_epi32(samples128_8, _MM_SHUFFLE(1, 1, 0, 0))));
+ case 10:
+ case 9: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_8, _MM_SHUFFLE(3, 3, 2, 2)), _mm_shuffle_epi32(samples128_8, _MM_SHUFFLE(3, 3, 2, 2))));
+ case 8:
+ case 7: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_4, _MM_SHUFFLE(1, 1, 0, 0)), _mm_shuffle_epi32(samples128_4, _MM_SHUFFLE(1, 1, 0, 0))));
+ case 6:
+ case 5: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_4, _MM_SHUFFLE(3, 3, 2, 2)), _mm_shuffle_epi32(samples128_4, _MM_SHUFFLE(3, 3, 2, 2))));
+ case 4:
+ case 3: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_0, _MM_SHUFFLE(1, 1, 0, 0)), _mm_shuffle_epi32(samples128_0, _MM_SHUFFLE(1, 1, 0, 0))));
+ case 2:
+ case 1: prediction128 = _mm_add_epi64(prediction128, _mm_mul_epi32(_mm_shuffle_epi32(coefficients128_0, _MM_SHUFFLE(3, 3, 2, 2)), _mm_shuffle_epi32(samples128_0, _MM_SHUFFLE(3, 3, 2, 2))));
+ }
+
+ /* Horizontal add and shift. */
+ prediction128 = drflac__mm_hadd_epi64(prediction128);
+ prediction128 = drflac__mm_srai_epi64(prediction128, shift);
+ prediction128 = _mm_add_epi32(riceParamPart128, prediction128);
+
+ /* Our value should be sitting in prediction128[0]. We need to combine this with our SSE samples. */
+ samples128_8 = _mm_alignr_epi8(samples128_4, samples128_8, 4);
+ samples128_4 = _mm_alignr_epi8(samples128_0, samples128_4, 4);
+ samples128_0 = _mm_alignr_epi8(prediction128, samples128_0, 4);
+
+ /* Slide our rice parameter down so that the value in position 0 contains the next one to process. */
+ riceParamPart128 = _mm_alignr_epi8(_mm_setzero_si128(), riceParamPart128, 4);
+ }
+
+ /* We store samples in groups of 4. */
+ _mm_storeu_si128((__m128i*)pDecodedSamples, samples128_0);
+ pDecodedSamples += 4;
+ }
+
+ /* Make sure we process the last few samples. */
+ i = (count & ~3);
+ while (i < (int)count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts0, &riceParamParts0)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamParts0 &= riceParamMask;
+ riceParamParts0 |= (zeroCountParts0 << riceParam);
+ riceParamParts0 = (riceParamParts0 >> 1) ^ t[riceParamParts0 & 0x01];
+
+ /* Sample reconstruction. */
+ pDecodedSamples[0] = riceParamParts0 + drflac__calculate_prediction_64(order, shift, coefficients, pDecodedSamples);
+
+ i += 1;
+ pDecodedSamples += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__sse41(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ /* In my testing the order is rarely > 12, so in this case I'm going to simplify the SSE implementation by only handling order <= 12. */
+ if (order > 0 && order <= 12) {
+ if (bitsPerSample+shift > 32) {
+ return drflac__decode_samples_with_residual__rice__sse41_64(bs, count, riceParam, order, shift, coefficients, pSamplesOut);
+ } else {
+ return drflac__decode_samples_with_residual__rice__sse41_32(bs, count, riceParam, order, shift, coefficients, pSamplesOut);
+ }
+ } else {
+ return drflac__decode_samples_with_residual__rice__scalar(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac__vst2q_s32(drflac_int32* p, int32x4x2_t x)
+{
+ vst1q_s32(p+0, x.val[0]);
+ vst1q_s32(p+4, x.val[1]);
+}
+
+static DRFLAC_INLINE void drflac__vst2q_u32(drflac_uint32* p, uint32x4x2_t x)
+{
+ vst1q_u32(p+0, x.val[0]);
+ vst1q_u32(p+4, x.val[1]);
+}
+
+static DRFLAC_INLINE void drflac__vst2q_f32(float* p, float32x4x2_t x)
+{
+ vst1q_f32(p+0, x.val[0]);
+ vst1q_f32(p+4, x.val[1]);
+}
+
+static DRFLAC_INLINE void drflac__vst2q_s16(drflac_int16* p, int16x4x2_t x)
+{
+ vst1q_s16(p, vcombine_s16(x.val[0], x.val[1]));
+}
+
+static DRFLAC_INLINE void drflac__vst2q_u16(drflac_uint16* p, uint16x4x2_t x)
+{
+ vst1q_u16(p, vcombine_u16(x.val[0], x.val[1]));
+}
+
+static DRFLAC_INLINE int32x4_t drflac__vdupq_n_s32x4(drflac_int32 x3, drflac_int32 x2, drflac_int32 x1, drflac_int32 x0)
+{
+ drflac_int32 x[4];
+ x[3] = x3;
+ x[2] = x2;
+ x[1] = x1;
+ x[0] = x0;
+ return vld1q_s32(x);
+}
+
+static DRFLAC_INLINE int32x4_t drflac__valignrq_s32_1(int32x4_t a, int32x4_t b)
+{
+ /* Equivalent to SSE's _mm_alignr_epi8(a, b, 4) */
+
+ /* Reference */
+ /*return drflac__vdupq_n_s32x4(
+ vgetq_lane_s32(a, 0),
+ vgetq_lane_s32(b, 3),
+ vgetq_lane_s32(b, 2),
+ vgetq_lane_s32(b, 1)
+ );*/
+
+ return vextq_s32(b, a, 1);
+}
+
+static DRFLAC_INLINE uint32x4_t drflac__valignrq_u32_1(uint32x4_t a, uint32x4_t b)
+{
+ /* Equivalent to SSE's _mm_alignr_epi8(a, b, 4) */
+
+ /* Reference */
+ /*return drflac__vdupq_n_s32x4(
+ vgetq_lane_s32(a, 0),
+ vgetq_lane_s32(b, 3),
+ vgetq_lane_s32(b, 2),
+ vgetq_lane_s32(b, 1)
+ );*/
+
+ return vextq_u32(b, a, 1);
+}
+
+static DRFLAC_INLINE int32x2_t drflac__vhaddq_s32(int32x4_t x)
+{
+ /* The sum must end up in position 0. */
+
+ /* Reference */
+ /*return vdupq_n_s32(
+ vgetq_lane_s32(x, 3) +
+ vgetq_lane_s32(x, 2) +
+ vgetq_lane_s32(x, 1) +
+ vgetq_lane_s32(x, 0)
+ );*/
+
+ int32x2_t r = vadd_s32(vget_high_s32(x), vget_low_s32(x));
+ return vpadd_s32(r, r);
+}
+
+static DRFLAC_INLINE int64x1_t drflac__vhaddq_s64(int64x2_t x)
+{
+ return vadd_s64(vget_high_s64(x), vget_low_s64(x));
+}
+
+static DRFLAC_INLINE int32x4_t drflac__vrevq_s32(int32x4_t x)
+{
+ /* Reference */
+ /*return drflac__vdupq_n_s32x4(
+ vgetq_lane_s32(x, 0),
+ vgetq_lane_s32(x, 1),
+ vgetq_lane_s32(x, 2),
+ vgetq_lane_s32(x, 3)
+ );*/
+
+ return vrev64q_s32(vcombine_s32(vget_high_s32(x), vget_low_s32(x)));
+}
+
+static DRFLAC_INLINE int32x4_t drflac__vnotq_s32(int32x4_t x)
+{
+ return veorq_s32(x, vdupq_n_s32(0xFFFFFFFF));
+}
+
+static DRFLAC_INLINE uint32x4_t drflac__vnotq_u32(uint32x4_t x)
+{
+ return veorq_u32(x, vdupq_n_u32(0xFFFFFFFF));
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__neon_32(drflac_bs* bs, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ int i;
+ drflac_uint32 riceParamMask;
+ drflac_int32* pDecodedSamples = pSamplesOut;
+ drflac_int32* pDecodedSamplesEnd = pSamplesOut + (count & ~3);
+ drflac_uint32 zeroCountParts[4];
+ drflac_uint32 riceParamParts[4];
+ int32x4_t coefficients128_0;
+ int32x4_t coefficients128_4;
+ int32x4_t coefficients128_8;
+ int32x4_t samples128_0;
+ int32x4_t samples128_4;
+ int32x4_t samples128_8;
+ uint32x4_t riceParamMask128;
+ int32x4_t riceParam128;
+ int32x2_t shift64;
+ uint32x4_t one128;
+
+ const drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+
+ riceParamMask = ~((~0UL) << riceParam);
+ riceParamMask128 = vdupq_n_u32(riceParamMask);
+
+ riceParam128 = vdupq_n_s32(riceParam);
+ shift64 = vdup_n_s32(-shift); /* Negate the shift because we'll be doing a variable shift using vshlq_s32(). */
+ one128 = vdupq_n_u32(1);
+
+ /*
+ Pre-loading the coefficients and prior samples is annoying because we need to ensure we don't try reading more than
+ what's available in the input buffers. It would be conenient to use a fall-through switch to do this, but this results
+ in strict aliasing warnings with GCC. To work around this I'm just doing something hacky. This feels a bit convoluted
+ so I think there's opportunity for this to be simplified.
+ */
+ {
+ int runningOrder = order;
+ drflac_int32 tempC[4] = {0, 0, 0, 0};
+ drflac_int32 tempS[4] = {0, 0, 0, 0};
+
+ /* 0 - 3. */
+ if (runningOrder >= 4) {
+ coefficients128_0 = vld1q_s32(coefficients + 0);
+ samples128_0 = vld1q_s32(pSamplesOut - 4);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[2]; tempS[1] = pSamplesOut[-3]; /* fallthrough */
+ case 2: tempC[1] = coefficients[1]; tempS[2] = pSamplesOut[-2]; /* fallthrough */
+ case 1: tempC[0] = coefficients[0]; tempS[3] = pSamplesOut[-1]; /* fallthrough */
+ }
+
+ coefficients128_0 = vld1q_s32(tempC);
+ samples128_0 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* 4 - 7 */
+ if (runningOrder >= 4) {
+ coefficients128_4 = vld1q_s32(coefficients + 4);
+ samples128_4 = vld1q_s32(pSamplesOut - 8);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[6]; tempS[1] = pSamplesOut[-7]; /* fallthrough */
+ case 2: tempC[1] = coefficients[5]; tempS[2] = pSamplesOut[-6]; /* fallthrough */
+ case 1: tempC[0] = coefficients[4]; tempS[3] = pSamplesOut[-5]; /* fallthrough */
+ }
+
+ coefficients128_4 = vld1q_s32(tempC);
+ samples128_4 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* 8 - 11 */
+ if (runningOrder == 4) {
+ coefficients128_8 = vld1q_s32(coefficients + 8);
+ samples128_8 = vld1q_s32(pSamplesOut - 12);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[10]; tempS[1] = pSamplesOut[-11]; /* fallthrough */
+ case 2: tempC[1] = coefficients[ 9]; tempS[2] = pSamplesOut[-10]; /* fallthrough */
+ case 1: tempC[0] = coefficients[ 8]; tempS[3] = pSamplesOut[- 9]; /* fallthrough */
+ }
+
+ coefficients128_8 = vld1q_s32(tempC);
+ samples128_8 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* Coefficients need to be shuffled for our streaming algorithm below to work. Samples are already in the correct order from the loading routine above. */
+ coefficients128_0 = drflac__vrevq_s32(coefficients128_0);
+ coefficients128_4 = drflac__vrevq_s32(coefficients128_4);
+ coefficients128_8 = drflac__vrevq_s32(coefficients128_8);
+ }
+
+ /* For this version we are doing one sample at a time. */
+ while (pDecodedSamples < pDecodedSamplesEnd) {
+ int32x4_t prediction128;
+ int32x2_t prediction64;
+ uint32x4_t zeroCountPart128;
+ uint32x4_t riceParamPart128;
+
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[0], &riceParamParts[0]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[1], &riceParamParts[1]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[2], &riceParamParts[2]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[3], &riceParamParts[3])) {
+ return DRFLAC_FALSE;
+ }
+
+ zeroCountPart128 = vld1q_u32(zeroCountParts);
+ riceParamPart128 = vld1q_u32(riceParamParts);
+
+ riceParamPart128 = vandq_u32(riceParamPart128, riceParamMask128);
+ riceParamPart128 = vorrq_u32(riceParamPart128, vshlq_u32(zeroCountPart128, riceParam128));
+ riceParamPart128 = veorq_u32(vshrq_n_u32(riceParamPart128, 1), vaddq_u32(drflac__vnotq_u32(vandq_u32(riceParamPart128, one128)), one128));
+
+ if (order <= 4) {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = vmulq_s32(coefficients128_0, samples128_0);
+
+ /* Horizontal add and shift. */
+ prediction64 = drflac__vhaddq_s32(prediction128);
+ prediction64 = vshl_s32(prediction64, shift64);
+ prediction64 = vadd_s32(prediction64, vget_low_s32(vreinterpretq_s32_u32(riceParamPart128)));
+
+ samples128_0 = drflac__valignrq_s32_1(vcombine_s32(prediction64, vdup_n_s32(0)), samples128_0);
+ riceParamPart128 = drflac__valignrq_u32_1(vdupq_n_u32(0), riceParamPart128);
+ }
+ } else if (order <= 8) {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = vmulq_s32(coefficients128_4, samples128_4);
+ prediction128 = vmlaq_s32(prediction128, coefficients128_0, samples128_0);
+
+ /* Horizontal add and shift. */
+ prediction64 = drflac__vhaddq_s32(prediction128);
+ prediction64 = vshl_s32(prediction64, shift64);
+ prediction64 = vadd_s32(prediction64, vget_low_s32(vreinterpretq_s32_u32(riceParamPart128)));
+
+ samples128_4 = drflac__valignrq_s32_1(samples128_0, samples128_4);
+ samples128_0 = drflac__valignrq_s32_1(vcombine_s32(prediction64, vdup_n_s32(0)), samples128_0);
+ riceParamPart128 = drflac__valignrq_u32_1(vdupq_n_u32(0), riceParamPart128);
+ }
+ } else {
+ for (i = 0; i < 4; i += 1) {
+ prediction128 = vmulq_s32(coefficients128_8, samples128_8);
+ prediction128 = vmlaq_s32(prediction128, coefficients128_4, samples128_4);
+ prediction128 = vmlaq_s32(prediction128, coefficients128_0, samples128_0);
+
+ /* Horizontal add and shift. */
+ prediction64 = drflac__vhaddq_s32(prediction128);
+ prediction64 = vshl_s32(prediction64, shift64);
+ prediction64 = vadd_s32(prediction64, vget_low_s32(vreinterpretq_s32_u32(riceParamPart128)));
+
+ samples128_8 = drflac__valignrq_s32_1(samples128_4, samples128_8);
+ samples128_4 = drflac__valignrq_s32_1(samples128_0, samples128_4);
+ samples128_0 = drflac__valignrq_s32_1(vcombine_s32(prediction64, vdup_n_s32(0)), samples128_0);
+ riceParamPart128 = drflac__valignrq_u32_1(vdupq_n_u32(0), riceParamPart128);
+ }
+ }
+
+ /* We store samples in groups of 4. */
+ vst1q_s32(pDecodedSamples, samples128_0);
+ pDecodedSamples += 4;
+ }
+
+ /* Make sure we process the last few samples. */
+ i = (count & ~3);
+ while (i < (int)count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[0], &riceParamParts[0])) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamParts[0] &= riceParamMask;
+ riceParamParts[0] |= (zeroCountParts[0] << riceParam);
+ riceParamParts[0] = (riceParamParts[0] >> 1) ^ t[riceParamParts[0] & 0x01];
+
+ /* Sample reconstruction. */
+ pDecodedSamples[0] = riceParamParts[0] + drflac__calculate_prediction_32(order, shift, coefficients, pDecodedSamples);
+
+ i += 1;
+ pDecodedSamples += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__neon_64(drflac_bs* bs, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ int i;
+ drflac_uint32 riceParamMask;
+ drflac_int32* pDecodedSamples = pSamplesOut;
+ drflac_int32* pDecodedSamplesEnd = pSamplesOut + (count & ~3);
+ drflac_uint32 zeroCountParts[4];
+ drflac_uint32 riceParamParts[4];
+ int32x4_t coefficients128_0;
+ int32x4_t coefficients128_4;
+ int32x4_t coefficients128_8;
+ int32x4_t samples128_0;
+ int32x4_t samples128_4;
+ int32x4_t samples128_8;
+ uint32x4_t riceParamMask128;
+ int32x4_t riceParam128;
+ int64x1_t shift64;
+ uint32x4_t one128;
+
+ const drflac_uint32 t[2] = {0x00000000, 0xFFFFFFFF};
+
+ riceParamMask = ~((~0UL) << riceParam);
+ riceParamMask128 = vdupq_n_u32(riceParamMask);
+
+ riceParam128 = vdupq_n_s32(riceParam);
+ shift64 = vdup_n_s64(-shift); /* Negate the shift because we'll be doing a variable shift using vshlq_s32(). */
+ one128 = vdupq_n_u32(1);
+
+ /*
+ Pre-loading the coefficients and prior samples is annoying because we need to ensure we don't try reading more than
+ what's available in the input buffers. It would be conenient to use a fall-through switch to do this, but this results
+ in strict aliasing warnings with GCC. To work around this I'm just doing something hacky. This feels a bit convoluted
+ so I think there's opportunity for this to be simplified.
+ */
+ {
+ int runningOrder = order;
+ drflac_int32 tempC[4] = {0, 0, 0, 0};
+ drflac_int32 tempS[4] = {0, 0, 0, 0};
+
+ /* 0 - 3. */
+ if (runningOrder >= 4) {
+ coefficients128_0 = vld1q_s32(coefficients + 0);
+ samples128_0 = vld1q_s32(pSamplesOut - 4);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[2]; tempS[1] = pSamplesOut[-3]; /* fallthrough */
+ case 2: tempC[1] = coefficients[1]; tempS[2] = pSamplesOut[-2]; /* fallthrough */
+ case 1: tempC[0] = coefficients[0]; tempS[3] = pSamplesOut[-1]; /* fallthrough */
+ }
+
+ coefficients128_0 = vld1q_s32(tempC);
+ samples128_0 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* 4 - 7 */
+ if (runningOrder >= 4) {
+ coefficients128_4 = vld1q_s32(coefficients + 4);
+ samples128_4 = vld1q_s32(pSamplesOut - 8);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[6]; tempS[1] = pSamplesOut[-7]; /* fallthrough */
+ case 2: tempC[1] = coefficients[5]; tempS[2] = pSamplesOut[-6]; /* fallthrough */
+ case 1: tempC[0] = coefficients[4]; tempS[3] = pSamplesOut[-5]; /* fallthrough */
+ }
+
+ coefficients128_4 = vld1q_s32(tempC);
+ samples128_4 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* 8 - 11 */
+ if (runningOrder == 4) {
+ coefficients128_8 = vld1q_s32(coefficients + 8);
+ samples128_8 = vld1q_s32(pSamplesOut - 12);
+ runningOrder -= 4;
+ } else {
+ switch (runningOrder) {
+ case 3: tempC[2] = coefficients[10]; tempS[1] = pSamplesOut[-11]; /* fallthrough */
+ case 2: tempC[1] = coefficients[ 9]; tempS[2] = pSamplesOut[-10]; /* fallthrough */
+ case 1: tempC[0] = coefficients[ 8]; tempS[3] = pSamplesOut[- 9]; /* fallthrough */
+ }
+
+ coefficients128_8 = vld1q_s32(tempC);
+ samples128_8 = vld1q_s32(tempS);
+ runningOrder = 0;
+ }
+
+ /* Coefficients need to be shuffled for our streaming algorithm below to work. Samples are already in the correct order from the loading routine above. */
+ coefficients128_0 = drflac__vrevq_s32(coefficients128_0);
+ coefficients128_4 = drflac__vrevq_s32(coefficients128_4);
+ coefficients128_8 = drflac__vrevq_s32(coefficients128_8);
+ }
+
+ /* For this version we are doing one sample at a time. */
+ while (pDecodedSamples < pDecodedSamplesEnd) {
+ int64x2_t prediction128;
+ uint32x4_t zeroCountPart128;
+ uint32x4_t riceParamPart128;
+
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[0], &riceParamParts[0]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[1], &riceParamParts[1]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[2], &riceParamParts[2]) ||
+ !drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[3], &riceParamParts[3])) {
+ return DRFLAC_FALSE;
+ }
+
+ zeroCountPart128 = vld1q_u32(zeroCountParts);
+ riceParamPart128 = vld1q_u32(riceParamParts);
+
+ riceParamPart128 = vandq_u32(riceParamPart128, riceParamMask128);
+ riceParamPart128 = vorrq_u32(riceParamPart128, vshlq_u32(zeroCountPart128, riceParam128));
+ riceParamPart128 = veorq_u32(vshrq_n_u32(riceParamPart128, 1), vaddq_u32(drflac__vnotq_u32(vandq_u32(riceParamPart128, one128)), one128));
+
+ for (i = 0; i < 4; i += 1) {
+ int64x1_t prediction64;
+
+ prediction128 = veorq_s64(prediction128, prediction128); /* Reset to 0. */
+ switch (order)
+ {
+ case 12:
+ case 11: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_low_s32(coefficients128_8), vget_low_s32(samples128_8)));
+ case 10:
+ case 9: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_high_s32(coefficients128_8), vget_high_s32(samples128_8)));
+ case 8:
+ case 7: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_low_s32(coefficients128_4), vget_low_s32(samples128_4)));
+ case 6:
+ case 5: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_high_s32(coefficients128_4), vget_high_s32(samples128_4)));
+ case 4:
+ case 3: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_low_s32(coefficients128_0), vget_low_s32(samples128_0)));
+ case 2:
+ case 1: prediction128 = vaddq_s64(prediction128, vmull_s32(vget_high_s32(coefficients128_0), vget_high_s32(samples128_0)));
+ }
+
+ /* Horizontal add and shift. */
+ prediction64 = drflac__vhaddq_s64(prediction128);
+ prediction64 = vshl_s64(prediction64, shift64);
+ prediction64 = vadd_s64(prediction64, vdup_n_s64(vgetq_lane_u32(riceParamPart128, 0)));
+
+ /* Our value should be sitting in prediction64[0]. We need to combine this with our SSE samples. */
+ samples128_8 = drflac__valignrq_s32_1(samples128_4, samples128_8);
+ samples128_4 = drflac__valignrq_s32_1(samples128_0, samples128_4);
+ samples128_0 = drflac__valignrq_s32_1(vcombine_s32(vreinterpret_s32_s64(prediction64), vdup_n_s32(0)), samples128_0);
+
+ /* Slide our rice parameter down so that the value in position 0 contains the next one to process. */
+ riceParamPart128 = drflac__valignrq_u32_1(vdupq_n_u32(0), riceParamPart128);
+ }
+
+ /* We store samples in groups of 4. */
+ vst1q_s32(pDecodedSamples, samples128_0);
+ pDecodedSamples += 4;
+ }
+
+ /* Make sure we process the last few samples. */
+ i = (count & ~3);
+ while (i < (int)count) {
+ /* Rice extraction. */
+ if (!drflac__read_rice_parts_x1(bs, riceParam, &zeroCountParts[0], &riceParamParts[0])) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Rice reconstruction. */
+ riceParamParts[0] &= riceParamMask;
+ riceParamParts[0] |= (zeroCountParts[0] << riceParam);
+ riceParamParts[0] = (riceParamParts[0] >> 1) ^ t[riceParamParts[0] & 0x01];
+
+ /* Sample reconstruction. */
+ pDecodedSamples[0] = riceParamParts[0] + drflac__calculate_prediction_64(order, shift, coefficients, pDecodedSamples);
+
+ i += 1;
+ pDecodedSamples += 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice__neon(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ /* In my testing the order is rarely > 12, so in this case I'm going to simplify the NEON implementation by only handling order <= 12. */
+ if (order > 0 && order <= 12) {
+ if (bitsPerSample+shift > 32) {
+ return drflac__decode_samples_with_residual__rice__neon_64(bs, count, riceParam, order, shift, coefficients, pSamplesOut);
+ } else {
+ return drflac__decode_samples_with_residual__rice__neon_32(bs, count, riceParam, order, shift, coefficients, pSamplesOut);
+ }
+ } else {
+ return drflac__decode_samples_with_residual__rice__scalar(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ }
+}
+#endif
+
+static drflac_bool32 drflac__decode_samples_with_residual__rice(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 riceParam, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+#if defined(DRFLAC_SUPPORT_SSE41)
+ if (drflac__gIsSSE41Supported) {
+ return drflac__decode_samples_with_residual__rice__sse41(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported) {
+ return drflac__decode_samples_with_residual__rice__neon(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+ #if 0
+ return drflac__decode_samples_with_residual__rice__reference(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ #else
+ return drflac__decode_samples_with_residual__rice__scalar(bs, bitsPerSample, count, riceParam, order, shift, coefficients, pSamplesOut);
+ #endif
+ }
+}
+
+/* Reads and seeks past a string of residual values as Rice codes. The decoder should be sitting on the first bit of the Rice codes. */
+static drflac_bool32 drflac__read_and_seek_residual__rice(drflac_bs* bs, drflac_uint32 count, drflac_uint8 riceParam)
+{
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+
+ for (i = 0; i < count; ++i) {
+ if (!drflac__seek_rice_parts(bs, riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples_with_residual__unencoded(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 count, drflac_uint8 unencodedBitsPerSample, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pSamplesOut)
+{
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(count > 0);
+ DRFLAC_ASSERT(unencodedBitsPerSample <= 31); /* <-- unencodedBitsPerSample is a 5 bit number, so cannot exceed 31. */
+ DRFLAC_ASSERT(pSamplesOut != NULL);
+
+ for (i = 0; i < count; ++i) {
+ if (unencodedBitsPerSample > 0) {
+ if (!drflac__read_int32(bs, unencodedBitsPerSample, pSamplesOut + i)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ pSamplesOut[i] = 0;
+ }
+
+ if (bitsPerSample >= 24) {
+ pSamplesOut[i] += drflac__calculate_prediction_64(order, shift, coefficients, pSamplesOut + i);
+ } else {
+ pSamplesOut[i] += drflac__calculate_prediction_32(order, shift, coefficients, pSamplesOut + i);
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+
+
+/*
+Reads and decodes the residual for the sub-frame the decoder is currently sitting on. This function should be called
+when the decoder is sitting at the very start of the RESIDUAL block. The first <order> residuals will be ignored. The
+<blockSize> and <order> parameters are used to determine how many residual values need to be decoded.
+*/
+static drflac_bool32 drflac__decode_samples_with_residual(drflac_bs* bs, drflac_uint32 bitsPerSample, drflac_uint32 blockSize, drflac_uint32 order, drflac_int32 shift, const drflac_int32* coefficients, drflac_int32* pDecodedSamples)
+{
+ drflac_uint8 residualMethod;
+ drflac_uint8 partitionOrder;
+ drflac_uint32 samplesInPartition;
+ drflac_uint32 partitionsRemaining;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(blockSize != 0);
+ DRFLAC_ASSERT(pDecodedSamples != NULL); /* <-- Should we allow NULL, in which case we just seek past the residual rather than do a full decode? */
+
+ if (!drflac__read_uint8(bs, 2, &residualMethod)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (residualMethod != DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE && residualMethod != DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE2) {
+ return DRFLAC_FALSE; /* Unknown or unsupported residual coding method. */
+ }
+
+ /* Ignore the first <order> values. */
+ pDecodedSamples += order;
+
+ if (!drflac__read_uint8(bs, 4, &partitionOrder)) {
+ return DRFLAC_FALSE;
+ }
+
+ /*
+ From the FLAC spec:
+ The Rice partition order in a Rice-coded residual section must be less than or equal to 8.
+ */
+ if (partitionOrder > 8) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Validation check. */
+ if ((blockSize / (1 << partitionOrder)) <= order) {
+ return DRFLAC_FALSE;
+ }
+
+ samplesInPartition = (blockSize / (1 << partitionOrder)) - order;
+ partitionsRemaining = (1 << partitionOrder);
+ for (;;) {
+ drflac_uint8 riceParam = 0;
+ if (residualMethod == DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE) {
+ if (!drflac__read_uint8(bs, 4, &riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ if (riceParam == 15) {
+ riceParam = 0xFF;
+ }
+ } else if (residualMethod == DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE2) {
+ if (!drflac__read_uint8(bs, 5, &riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ if (riceParam == 31) {
+ riceParam = 0xFF;
+ }
+ }
+
+ if (riceParam != 0xFF) {
+ if (!drflac__decode_samples_with_residual__rice(bs, bitsPerSample, samplesInPartition, riceParam, order, shift, coefficients, pDecodedSamples)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ drflac_uint8 unencodedBitsPerSample = 0;
+ if (!drflac__read_uint8(bs, 5, &unencodedBitsPerSample)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__decode_samples_with_residual__unencoded(bs, bitsPerSample, samplesInPartition, unencodedBitsPerSample, order, shift, coefficients, pDecodedSamples)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ pDecodedSamples += samplesInPartition;
+
+ if (partitionsRemaining == 1) {
+ break;
+ }
+
+ partitionsRemaining -= 1;
+
+ if (partitionOrder != 0) {
+ samplesInPartition = blockSize / (1 << partitionOrder);
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+
+/*
+Reads and seeks past the residual for the sub-frame the decoder is currently sitting on. This function should be called
+when the decoder is sitting at the very start of the RESIDUAL block. The first <order> residuals will be set to 0. The
+<blockSize> and <order> parameters are used to determine how many residual values need to be decoded.
+*/
+static drflac_bool32 drflac__read_and_seek_residual(drflac_bs* bs, drflac_uint32 blockSize, drflac_uint32 order)
+{
+ drflac_uint8 residualMethod;
+ drflac_uint8 partitionOrder;
+ drflac_uint32 samplesInPartition;
+ drflac_uint32 partitionsRemaining;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(blockSize != 0);
+
+ if (!drflac__read_uint8(bs, 2, &residualMethod)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (residualMethod != DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE && residualMethod != DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE2) {
+ return DRFLAC_FALSE; /* Unknown or unsupported residual coding method. */
+ }
+
+ if (!drflac__read_uint8(bs, 4, &partitionOrder)) {
+ return DRFLAC_FALSE;
+ }
+
+ /*
+ From the FLAC spec:
+ The Rice partition order in a Rice-coded residual section must be less than or equal to 8.
+ */
+ if (partitionOrder > 8) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Validation check. */
+ if ((blockSize / (1 << partitionOrder)) <= order) {
+ return DRFLAC_FALSE;
+ }
+
+ samplesInPartition = (blockSize / (1 << partitionOrder)) - order;
+ partitionsRemaining = (1 << partitionOrder);
+ for (;;)
+ {
+ drflac_uint8 riceParam = 0;
+ if (residualMethod == DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE) {
+ if (!drflac__read_uint8(bs, 4, &riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ if (riceParam == 15) {
+ riceParam = 0xFF;
+ }
+ } else if (residualMethod == DRFLAC_RESIDUAL_CODING_METHOD_PARTITIONED_RICE2) {
+ if (!drflac__read_uint8(bs, 5, &riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ if (riceParam == 31) {
+ riceParam = 0xFF;
+ }
+ }
+
+ if (riceParam != 0xFF) {
+ if (!drflac__read_and_seek_residual__rice(bs, samplesInPartition, riceParam)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ drflac_uint8 unencodedBitsPerSample = 0;
+ if (!drflac__read_uint8(bs, 5, &unencodedBitsPerSample)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__seek_bits(bs, unencodedBitsPerSample * samplesInPartition)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+
+ if (partitionsRemaining == 1) {
+ break;
+ }
+
+ partitionsRemaining -= 1;
+ samplesInPartition = blockSize / (1 << partitionOrder);
+ }
+
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_bool32 drflac__decode_samples__constant(drflac_bs* bs, drflac_uint32 blockSize, drflac_uint32 subframeBitsPerSample, drflac_int32* pDecodedSamples)
+{
+ drflac_uint32 i;
+
+ /* Only a single sample needs to be decoded here. */
+ drflac_int32 sample;
+ if (!drflac__read_int32(bs, subframeBitsPerSample, &sample)) {
+ return DRFLAC_FALSE;
+ }
+
+ /*
+ We don't really need to expand this, but it does simplify the process of reading samples. If this becomes a performance issue (unlikely)
+ we'll want to look at a more efficient way.
+ */
+ for (i = 0; i < blockSize; ++i) {
+ pDecodedSamples[i] = sample;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples__verbatim(drflac_bs* bs, drflac_uint32 blockSize, drflac_uint32 subframeBitsPerSample, drflac_int32* pDecodedSamples)
+{
+ drflac_uint32 i;
+
+ for (i = 0; i < blockSize; ++i) {
+ drflac_int32 sample;
+ if (!drflac__read_int32(bs, subframeBitsPerSample, &sample)) {
+ return DRFLAC_FALSE;
+ }
+
+ pDecodedSamples[i] = sample;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples__fixed(drflac_bs* bs, drflac_uint32 blockSize, drflac_uint32 subframeBitsPerSample, drflac_uint8 lpcOrder, drflac_int32* pDecodedSamples)
+{
+ drflac_uint32 i;
+
+ static drflac_int32 lpcCoefficientsTable[5][4] = {
+ {0, 0, 0, 0},
+ {1, 0, 0, 0},
+ {2, -1, 0, 0},
+ {3, -3, 1, 0},
+ {4, -6, 4, -1}
+ };
+
+ /* Warm up samples and coefficients. */
+ for (i = 0; i < lpcOrder; ++i) {
+ drflac_int32 sample;
+ if (!drflac__read_int32(bs, subframeBitsPerSample, &sample)) {
+ return DRFLAC_FALSE;
+ }
+
+ pDecodedSamples[i] = sample;
+ }
+
+ if (!drflac__decode_samples_with_residual(bs, subframeBitsPerSample, blockSize, lpcOrder, 0, lpcCoefficientsTable[lpcOrder], pDecodedSamples)) {
+ return DRFLAC_FALSE;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_samples__lpc(drflac_bs* bs, drflac_uint32 blockSize, drflac_uint32 bitsPerSample, drflac_uint8 lpcOrder, drflac_int32* pDecodedSamples)
+{
+ drflac_uint8 i;
+ drflac_uint8 lpcPrecision;
+ drflac_int8 lpcShift;
+ drflac_int32 coefficients[32];
+
+ /* Warm up samples. */
+ for (i = 0; i < lpcOrder; ++i) {
+ drflac_int32 sample;
+ if (!drflac__read_int32(bs, bitsPerSample, &sample)) {
+ return DRFLAC_FALSE;
+ }
+
+ pDecodedSamples[i] = sample;
+ }
+
+ if (!drflac__read_uint8(bs, 4, &lpcPrecision)) {
+ return DRFLAC_FALSE;
+ }
+ if (lpcPrecision == 15) {
+ return DRFLAC_FALSE; /* Invalid. */
+ }
+ lpcPrecision += 1;
+
+ if (!drflac__read_int8(bs, 5, &lpcShift)) {
+ return DRFLAC_FALSE;
+ }
+
+ /*
+ From the FLAC specification:
+
+ Quantized linear predictor coefficient shift needed in bits (NOTE: this number is signed two's-complement)
+
+ Emphasis on the "signed two's-complement". In practice there does not seem to be any encoders nor decoders supporting negative shifts. For now dr_flac is
+ not going to support negative shifts as I don't have any reference files. However, when a reference file comes through I will consider adding support.
+ */
+ if (lpcShift < 0) {
+ return DRFLAC_FALSE;
+ }
+
+ DRFLAC_ZERO_MEMORY(coefficients, sizeof(coefficients));
+ for (i = 0; i < lpcOrder; ++i) {
+ if (!drflac__read_int32(bs, lpcPrecision, coefficients + i)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ if (!drflac__decode_samples_with_residual(bs, bitsPerSample, blockSize, lpcOrder, lpcShift, coefficients, pDecodedSamples)) {
+ return DRFLAC_FALSE;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_bool32 drflac__read_next_flac_frame_header(drflac_bs* bs, drflac_uint8 streaminfoBitsPerSample, drflac_frame_header* header)
+{
+ const drflac_uint32 sampleRateTable[12] = {0, 88200, 176400, 192000, 8000, 16000, 22050, 24000, 32000, 44100, 48000, 96000};
+ const drflac_uint8 bitsPerSampleTable[8] = {0, 8, 12, (drflac_uint8)-1, 16, 20, 24, (drflac_uint8)-1}; /* -1 = reserved. */
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(header != NULL);
+
+ /* Keep looping until we find a valid sync code. */
+ for (;;) {
+ drflac_uint8 crc8 = 0xCE; /* 0xCE = drflac_crc8(0, 0x3FFE, 14); */
+ drflac_uint8 reserved = 0;
+ drflac_uint8 blockingStrategy = 0;
+ drflac_uint8 blockSize = 0;
+ drflac_uint8 sampleRate = 0;
+ drflac_uint8 channelAssignment = 0;
+ drflac_uint8 bitsPerSample = 0;
+ drflac_bool32 isVariableBlockSize;
+
+ if (!drflac__find_and_seek_to_next_sync_code(bs)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__read_uint8(bs, 1, &reserved)) {
+ return DRFLAC_FALSE;
+ }
+ if (reserved == 1) {
+ continue;
+ }
+ crc8 = drflac_crc8(crc8, reserved, 1);
+
+ if (!drflac__read_uint8(bs, 1, &blockingStrategy)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, blockingStrategy, 1);
+
+ if (!drflac__read_uint8(bs, 4, &blockSize)) {
+ return DRFLAC_FALSE;
+ }
+ if (blockSize == 0) {
+ continue;
+ }
+ crc8 = drflac_crc8(crc8, blockSize, 4);
+
+ if (!drflac__read_uint8(bs, 4, &sampleRate)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, sampleRate, 4);
+
+ if (!drflac__read_uint8(bs, 4, &channelAssignment)) {
+ return DRFLAC_FALSE;
+ }
+ if (channelAssignment > 10) {
+ continue;
+ }
+ crc8 = drflac_crc8(crc8, channelAssignment, 4);
+
+ if (!drflac__read_uint8(bs, 3, &bitsPerSample)) {
+ return DRFLAC_FALSE;
+ }
+ if (bitsPerSample == 3 || bitsPerSample == 7) {
+ continue;
+ }
+ crc8 = drflac_crc8(crc8, bitsPerSample, 3);
+
+
+ if (!drflac__read_uint8(bs, 1, &reserved)) {
+ return DRFLAC_FALSE;
+ }
+ if (reserved == 1) {
+ continue;
+ }
+ crc8 = drflac_crc8(crc8, reserved, 1);
+
+
+ isVariableBlockSize = blockingStrategy == 1;
+ if (isVariableBlockSize) {
+ drflac_uint64 pcmFrameNumber;
+ drflac_result result = drflac__read_utf8_coded_number(bs, &pcmFrameNumber, &crc8);
+ if (result != DRFLAC_SUCCESS) {
+ if (result == DRFLAC_AT_END) {
+ return DRFLAC_FALSE;
+ } else {
+ continue;
+ }
+ }
+ header->flacFrameNumber = 0;
+ header->pcmFrameNumber = pcmFrameNumber;
+ } else {
+ drflac_uint64 flacFrameNumber = 0;
+ drflac_result result = drflac__read_utf8_coded_number(bs, &flacFrameNumber, &crc8);
+ if (result != DRFLAC_SUCCESS) {
+ if (result == DRFLAC_AT_END) {
+ return DRFLAC_FALSE;
+ } else {
+ continue;
+ }
+ }
+ header->flacFrameNumber = (drflac_uint32)flacFrameNumber; /* <-- Safe cast. */
+ header->pcmFrameNumber = 0;
+ }
+
+
+ DRFLAC_ASSERT(blockSize > 0);
+ if (blockSize == 1) {
+ header->blockSizeInPCMFrames = 192;
+ } else if (blockSize <= 5) {
+ DRFLAC_ASSERT(blockSize >= 2);
+ header->blockSizeInPCMFrames = 576 * (1 << (blockSize - 2));
+ } else if (blockSize == 6) {
+ if (!drflac__read_uint16(bs, 8, &header->blockSizeInPCMFrames)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, header->blockSizeInPCMFrames, 8);
+ header->blockSizeInPCMFrames += 1;
+ } else if (blockSize == 7) {
+ if (!drflac__read_uint16(bs, 16, &header->blockSizeInPCMFrames)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, header->blockSizeInPCMFrames, 16);
+ header->blockSizeInPCMFrames += 1;
+ } else {
+ DRFLAC_ASSERT(blockSize >= 8);
+ header->blockSizeInPCMFrames = 256 * (1 << (blockSize - 8));
+ }
+
+
+ if (sampleRate <= 11) {
+ header->sampleRate = sampleRateTable[sampleRate];
+ } else if (sampleRate == 12) {
+ if (!drflac__read_uint32(bs, 8, &header->sampleRate)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, header->sampleRate, 8);
+ header->sampleRate *= 1000;
+ } else if (sampleRate == 13) {
+ if (!drflac__read_uint32(bs, 16, &header->sampleRate)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, header->sampleRate, 16);
+ } else if (sampleRate == 14) {
+ if (!drflac__read_uint32(bs, 16, &header->sampleRate)) {
+ return DRFLAC_FALSE;
+ }
+ crc8 = drflac_crc8(crc8, header->sampleRate, 16);
+ header->sampleRate *= 10;
+ } else {
+ continue; /* Invalid. Assume an invalid block. */
+ }
+
+
+ header->channelAssignment = channelAssignment;
+
+ header->bitsPerSample = bitsPerSampleTable[bitsPerSample];
+ if (header->bitsPerSample == 0) {
+ header->bitsPerSample = streaminfoBitsPerSample;
+ }
+
+ if (!drflac__read_uint8(bs, 8, &header->crc8)) {
+ return DRFLAC_FALSE;
+ }
+
+#ifndef DR_FLAC_NO_CRC
+ if (header->crc8 != crc8) {
+ continue; /* CRC mismatch. Loop back to the top and find the next sync code. */
+ }
+#endif
+ return DRFLAC_TRUE;
+ }
+}
+
+static drflac_bool32 drflac__read_subframe_header(drflac_bs* bs, drflac_subframe* pSubframe)
+{
+ drflac_uint8 header;
+ int type;
+
+ if (!drflac__read_uint8(bs, 8, &header)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* First bit should always be 0. */
+ if ((header & 0x80) != 0) {
+ return DRFLAC_FALSE;
+ }
+
+ type = (header & 0x7E) >> 1;
+ if (type == 0) {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_CONSTANT;
+ } else if (type == 1) {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_VERBATIM;
+ } else {
+ if ((type & 0x20) != 0) {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_LPC;
+ pSubframe->lpcOrder = (drflac_uint8)(type & 0x1F) + 1;
+ } else if ((type & 0x08) != 0) {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_FIXED;
+ pSubframe->lpcOrder = (drflac_uint8)(type & 0x07);
+ if (pSubframe->lpcOrder > 4) {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_RESERVED;
+ pSubframe->lpcOrder = 0;
+ }
+ } else {
+ pSubframe->subframeType = DRFLAC_SUBFRAME_RESERVED;
+ }
+ }
+
+ if (pSubframe->subframeType == DRFLAC_SUBFRAME_RESERVED) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Wasted bits per sample. */
+ pSubframe->wastedBitsPerSample = 0;
+ if ((header & 0x01) == 1) {
+ unsigned int wastedBitsPerSample;
+ if (!drflac__seek_past_next_set_bit(bs, &wastedBitsPerSample)) {
+ return DRFLAC_FALSE;
+ }
+ pSubframe->wastedBitsPerSample = (drflac_uint8)wastedBitsPerSample + 1;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_subframe(drflac_bs* bs, drflac_frame* frame, int subframeIndex, drflac_int32* pDecodedSamplesOut)
+{
+ drflac_subframe* pSubframe;
+ drflac_uint32 subframeBitsPerSample;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(frame != NULL);
+
+ pSubframe = frame->subframes + subframeIndex;
+ if (!drflac__read_subframe_header(bs, pSubframe)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Side channels require an extra bit per sample. Took a while to figure that one out... */
+ subframeBitsPerSample = frame->header.bitsPerSample;
+ if ((frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE || frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE) && subframeIndex == 1) {
+ subframeBitsPerSample += 1;
+ } else if (frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE && subframeIndex == 0) {
+ subframeBitsPerSample += 1;
+ }
+
+ /* Need to handle wasted bits per sample. */
+ if (pSubframe->wastedBitsPerSample >= subframeBitsPerSample) {
+ return DRFLAC_FALSE;
+ }
+ subframeBitsPerSample -= pSubframe->wastedBitsPerSample;
+
+ pSubframe->pSamplesS32 = pDecodedSamplesOut;
+
+ switch (pSubframe->subframeType)
+ {
+ case DRFLAC_SUBFRAME_CONSTANT:
+ {
+ drflac__decode_samples__constant(bs, frame->header.blockSizeInPCMFrames, subframeBitsPerSample, pSubframe->pSamplesS32);
+ } break;
+
+ case DRFLAC_SUBFRAME_VERBATIM:
+ {
+ drflac__decode_samples__verbatim(bs, frame->header.blockSizeInPCMFrames, subframeBitsPerSample, pSubframe->pSamplesS32);
+ } break;
+
+ case DRFLAC_SUBFRAME_FIXED:
+ {
+ drflac__decode_samples__fixed(bs, frame->header.blockSizeInPCMFrames, subframeBitsPerSample, pSubframe->lpcOrder, pSubframe->pSamplesS32);
+ } break;
+
+ case DRFLAC_SUBFRAME_LPC:
+ {
+ drflac__decode_samples__lpc(bs, frame->header.blockSizeInPCMFrames, subframeBitsPerSample, pSubframe->lpcOrder, pSubframe->pSamplesS32);
+ } break;
+
+ default: return DRFLAC_FALSE;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__seek_subframe(drflac_bs* bs, drflac_frame* frame, int subframeIndex)
+{
+ drflac_subframe* pSubframe;
+ drflac_uint32 subframeBitsPerSample;
+
+ DRFLAC_ASSERT(bs != NULL);
+ DRFLAC_ASSERT(frame != NULL);
+
+ pSubframe = frame->subframes + subframeIndex;
+ if (!drflac__read_subframe_header(bs, pSubframe)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Side channels require an extra bit per sample. Took a while to figure that one out... */
+ subframeBitsPerSample = frame->header.bitsPerSample;
+ if ((frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE || frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE) && subframeIndex == 1) {
+ subframeBitsPerSample += 1;
+ } else if (frame->header.channelAssignment == DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE && subframeIndex == 0) {
+ subframeBitsPerSample += 1;
+ }
+
+ /* Need to handle wasted bits per sample. */
+ if (pSubframe->wastedBitsPerSample >= subframeBitsPerSample) {
+ return DRFLAC_FALSE;
+ }
+ subframeBitsPerSample -= pSubframe->wastedBitsPerSample;
+
+ pSubframe->pSamplesS32 = NULL;
+
+ switch (pSubframe->subframeType)
+ {
+ case DRFLAC_SUBFRAME_CONSTANT:
+ {
+ if (!drflac__seek_bits(bs, subframeBitsPerSample)) {
+ return DRFLAC_FALSE;
+ }
+ } break;
+
+ case DRFLAC_SUBFRAME_VERBATIM:
+ {
+ unsigned int bitsToSeek = frame->header.blockSizeInPCMFrames * subframeBitsPerSample;
+ if (!drflac__seek_bits(bs, bitsToSeek)) {
+ return DRFLAC_FALSE;
+ }
+ } break;
+
+ case DRFLAC_SUBFRAME_FIXED:
+ {
+ unsigned int bitsToSeek = pSubframe->lpcOrder * subframeBitsPerSample;
+ if (!drflac__seek_bits(bs, bitsToSeek)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__read_and_seek_residual(bs, frame->header.blockSizeInPCMFrames, pSubframe->lpcOrder)) {
+ return DRFLAC_FALSE;
+ }
+ } break;
+
+ case DRFLAC_SUBFRAME_LPC:
+ {
+ drflac_uint8 lpcPrecision;
+
+ unsigned int bitsToSeek = pSubframe->lpcOrder * subframeBitsPerSample;
+ if (!drflac__seek_bits(bs, bitsToSeek)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__read_uint8(bs, 4, &lpcPrecision)) {
+ return DRFLAC_FALSE;
+ }
+ if (lpcPrecision == 15) {
+ return DRFLAC_FALSE; /* Invalid. */
+ }
+ lpcPrecision += 1;
+
+
+ bitsToSeek = (pSubframe->lpcOrder * lpcPrecision) + 5; /* +5 for shift. */
+ if (!drflac__seek_bits(bs, bitsToSeek)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac__read_and_seek_residual(bs, frame->header.blockSizeInPCMFrames, pSubframe->lpcOrder)) {
+ return DRFLAC_FALSE;
+ }
+ } break;
+
+ default: return DRFLAC_FALSE;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+
+static DRFLAC_INLINE drflac_uint8 drflac__get_channel_count_from_channel_assignment(drflac_int8 channelAssignment)
+{
+ drflac_uint8 lookup[] = {1, 2, 3, 4, 5, 6, 7, 8, 2, 2, 2};
+
+ DRFLAC_ASSERT(channelAssignment <= 10);
+ return lookup[channelAssignment];
+}
+
+static drflac_result drflac__decode_flac_frame(drflac* pFlac)
+{
+ int channelCount;
+ int i;
+ drflac_uint8 paddingSizeInBits;
+ drflac_uint16 desiredCRC16;
+#ifndef DR_FLAC_NO_CRC
+ drflac_uint16 actualCRC16;
+#endif
+
+ /* This function should be called while the stream is sitting on the first byte after the frame header. */
+ DRFLAC_ZERO_MEMORY(pFlac->currentFLACFrame.subframes, sizeof(pFlac->currentFLACFrame.subframes));
+
+ /* The frame block size must never be larger than the maximum block size defined by the FLAC stream. */
+ if (pFlac->currentFLACFrame.header.blockSizeInPCMFrames > pFlac->maxBlockSizeInPCMFrames) {
+ return DRFLAC_ERROR;
+ }
+
+ /* The number of channels in the frame must match the channel count from the STREAMINFO block. */
+ channelCount = drflac__get_channel_count_from_channel_assignment(pFlac->currentFLACFrame.header.channelAssignment);
+ if (channelCount != (int)pFlac->channels) {
+ return DRFLAC_ERROR;
+ }
+
+ for (i = 0; i < channelCount; ++i) {
+ if (!drflac__decode_subframe(&pFlac->bs, &pFlac->currentFLACFrame, i, pFlac->pDecodedSamples + (pFlac->currentFLACFrame.header.blockSizeInPCMFrames * i))) {
+ return DRFLAC_ERROR;
+ }
+ }
+
+ paddingSizeInBits = (drflac_uint8)(DRFLAC_CACHE_L1_BITS_REMAINING(&pFlac->bs) & 7);
+ if (paddingSizeInBits > 0) {
+ drflac_uint8 padding = 0;
+ if (!drflac__read_uint8(&pFlac->bs, paddingSizeInBits, &padding)) {
+ return DRFLAC_AT_END;
+ }
+ }
+
+#ifndef DR_FLAC_NO_CRC
+ actualCRC16 = drflac__flush_crc16(&pFlac->bs);
+#endif
+ if (!drflac__read_uint16(&pFlac->bs, 16, &desiredCRC16)) {
+ return DRFLAC_AT_END;
+ }
+
+#ifndef DR_FLAC_NO_CRC
+ if (actualCRC16 != desiredCRC16) {
+ return DRFLAC_CRC_MISMATCH; /* CRC mismatch. */
+ }
+#endif
+
+ pFlac->currentFLACFrame.pcmFramesRemaining = pFlac->currentFLACFrame.header.blockSizeInPCMFrames;
+
+ return DRFLAC_SUCCESS;
+}
+
+static drflac_result drflac__seek_flac_frame(drflac* pFlac)
+{
+ int channelCount;
+ int i;
+ drflac_uint16 desiredCRC16;
+#ifndef DR_FLAC_NO_CRC
+ drflac_uint16 actualCRC16;
+#endif
+
+ channelCount = drflac__get_channel_count_from_channel_assignment(pFlac->currentFLACFrame.header.channelAssignment);
+ for (i = 0; i < channelCount; ++i) {
+ if (!drflac__seek_subframe(&pFlac->bs, &pFlac->currentFLACFrame, i)) {
+ return DRFLAC_ERROR;
+ }
+ }
+
+ /* Padding. */
+ if (!drflac__seek_bits(&pFlac->bs, DRFLAC_CACHE_L1_BITS_REMAINING(&pFlac->bs) & 7)) {
+ return DRFLAC_ERROR;
+ }
+
+ /* CRC. */
+#ifndef DR_FLAC_NO_CRC
+ actualCRC16 = drflac__flush_crc16(&pFlac->bs);
+#endif
+ if (!drflac__read_uint16(&pFlac->bs, 16, &desiredCRC16)) {
+ return DRFLAC_AT_END;
+ }
+
+#ifndef DR_FLAC_NO_CRC
+ if (actualCRC16 != desiredCRC16) {
+ return DRFLAC_CRC_MISMATCH; /* CRC mismatch. */
+ }
+#endif
+
+ return DRFLAC_SUCCESS;
+}
+
+static drflac_bool32 drflac__read_and_decode_next_flac_frame(drflac* pFlac)
+{
+ DRFLAC_ASSERT(pFlac != NULL);
+
+ for (;;) {
+ drflac_result result;
+
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+
+ result = drflac__decode_flac_frame(pFlac);
+ if (result != DRFLAC_SUCCESS) {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ continue; /* CRC mismatch. Skip to the next frame. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ return DRFLAC_TRUE;
+ }
+}
+
+static void drflac__get_pcm_frame_range_of_current_flac_frame(drflac* pFlac, drflac_uint64* pFirstPCMFrame, drflac_uint64* pLastPCMFrame)
+{
+ drflac_uint64 firstPCMFrame;
+ drflac_uint64 lastPCMFrame;
+
+ DRFLAC_ASSERT(pFlac != NULL);
+
+ firstPCMFrame = pFlac->currentFLACFrame.header.pcmFrameNumber;
+ if (firstPCMFrame == 0) {
+ firstPCMFrame = ((drflac_uint64)pFlac->currentFLACFrame.header.flacFrameNumber) * pFlac->maxBlockSizeInPCMFrames;
+ }
+
+ lastPCMFrame = firstPCMFrame + pFlac->currentFLACFrame.header.blockSizeInPCMFrames;
+ if (lastPCMFrame > 0) {
+ lastPCMFrame -= 1; /* Needs to be zero based. */
+ }
+
+ if (pFirstPCMFrame) {
+ *pFirstPCMFrame = firstPCMFrame;
+ }
+ if (pLastPCMFrame) {
+ *pLastPCMFrame = lastPCMFrame;
+ }
+}
+
+static drflac_bool32 drflac__seek_to_first_frame(drflac* pFlac)
+{
+ drflac_bool32 result;
+
+ DRFLAC_ASSERT(pFlac != NULL);
+
+ result = drflac__seek_to_byte(&pFlac->bs, pFlac->firstFLACFramePosInBytes);
+
+ DRFLAC_ZERO_MEMORY(&pFlac->currentFLACFrame, sizeof(pFlac->currentFLACFrame));
+ pFlac->currentPCMFrame = 0;
+
+ return result;
+}
+
+static DRFLAC_INLINE drflac_result drflac__seek_to_next_flac_frame(drflac* pFlac)
+{
+ /* This function should only ever be called while the decoder is sitting on the first byte past the FRAME_HEADER section. */
+ DRFLAC_ASSERT(pFlac != NULL);
+ return drflac__seek_flac_frame(pFlac);
+}
+
+
+static drflac_uint64 drflac__seek_forward_by_pcm_frames(drflac* pFlac, drflac_uint64 pcmFramesToSeek)
+{
+ drflac_uint64 pcmFramesRead = 0;
+ while (pcmFramesToSeek > 0) {
+ if (pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_and_decode_next_flac_frame(pFlac)) {
+ break; /* Couldn't read the next frame, so just break from the loop and return. */
+ }
+ } else {
+ if (pFlac->currentFLACFrame.pcmFramesRemaining > pcmFramesToSeek) {
+ pcmFramesRead += pcmFramesToSeek;
+ pFlac->currentFLACFrame.pcmFramesRemaining -= (drflac_uint32)pcmFramesToSeek; /* <-- Safe cast. Will always be < currentFrame.pcmFramesRemaining < 65536. */
+ pcmFramesToSeek = 0;
+ } else {
+ pcmFramesRead += pFlac->currentFLACFrame.pcmFramesRemaining;
+ pcmFramesToSeek -= pFlac->currentFLACFrame.pcmFramesRemaining;
+ pFlac->currentFLACFrame.pcmFramesRemaining = 0;
+ }
+ }
+ }
+
+ pFlac->currentPCMFrame += pcmFramesRead;
+ return pcmFramesRead;
+}
+
+
+static drflac_bool32 drflac__seek_to_pcm_frame__brute_force(drflac* pFlac, drflac_uint64 pcmFrameIndex)
+{
+ drflac_bool32 isMidFrame = DRFLAC_FALSE;
+ drflac_uint64 runningPCMFrameCount;
+
+ DRFLAC_ASSERT(pFlac != NULL);
+
+ /* If we are seeking forward we start from the current position. Otherwise we need to start all the way from the start of the file. */
+ if (pcmFrameIndex >= pFlac->currentPCMFrame) {
+ /* Seeking forward. Need to seek from the current position. */
+ runningPCMFrameCount = pFlac->currentPCMFrame;
+
+ /* The frame header for the first frame may not yet have been read. We need to do that if necessary. */
+ if (pFlac->currentPCMFrame == 0 && pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ isMidFrame = DRFLAC_TRUE;
+ }
+ } else {
+ /* Seeking backwards. Need to seek from the start of the file. */
+ runningPCMFrameCount = 0;
+
+ /* Move back to the start. */
+ if (!drflac__seek_to_first_frame(pFlac)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Decode the first frame in preparation for sample-exact seeking below. */
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ /*
+ We need to as quickly as possible find the frame that contains the target sample. To do this, we iterate over each frame and inspect its
+ header. If based on the header we can determine that the frame contains the sample, we do a full decode of that frame.
+ */
+ for (;;) {
+ drflac_uint64 pcmFrameCountInThisFLACFrame;
+ drflac_uint64 firstPCMFrameInFLACFrame = 0;
+ drflac_uint64 lastPCMFrameInFLACFrame = 0;
+
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &firstPCMFrameInFLACFrame, &lastPCMFrameInFLACFrame);
+
+ pcmFrameCountInThisFLACFrame = (lastPCMFrameInFLACFrame - firstPCMFrameInFLACFrame) + 1;
+ if (pcmFrameIndex < (runningPCMFrameCount + pcmFrameCountInThisFLACFrame)) {
+ /*
+ The sample should be in this frame. We need to fully decode it, however if it's an invalid frame (a CRC mismatch), we need to pretend
+ it never existed and keep iterating.
+ */
+ drflac_uint64 pcmFramesToDecode = pcmFrameIndex - runningPCMFrameCount;
+
+ if (!isMidFrame) {
+ drflac_result result = drflac__decode_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ /* The frame is valid. We just need to skip over some samples to ensure it's sample-exact. */
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFramesToDecode) == pcmFramesToDecode; /* <-- If this fails, something bad has happened (it should never fail). */
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ goto next_iteration; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /* We started seeking mid-frame which means we need to skip the frame decoding part. */
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFramesToDecode) == pcmFramesToDecode;
+ }
+ } else {
+ /*
+ It's not in this frame. We need to seek past the frame, but check if there was a CRC mismatch. If so, we pretend this
+ frame never existed and leave the running sample count untouched.
+ */
+ if (!isMidFrame) {
+ drflac_result result = drflac__seek_to_next_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ runningPCMFrameCount += pcmFrameCountInThisFLACFrame;
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ goto next_iteration; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /*
+ We started seeking mid-frame which means we need to seek by reading to the end of the frame instead of with
+ drflac__seek_to_next_flac_frame() which only works if the decoder is sitting on the byte just after the frame header.
+ */
+ runningPCMFrameCount += pFlac->currentFLACFrame.pcmFramesRemaining;
+ pFlac->currentFLACFrame.pcmFramesRemaining = 0;
+ isMidFrame = DRFLAC_FALSE;
+ }
+
+ /* If we are seeking to the end of the file and we've just hit it, we're done. */
+ if (pcmFrameIndex == pFlac->totalPCMFrameCount && runningPCMFrameCount == pFlac->totalPCMFrameCount) {
+ return DRFLAC_TRUE;
+ }
+ }
+
+ next_iteration:
+ /* Grab the next frame in preparation for the next iteration. */
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ }
+}
+
+
+#if !defined(DR_FLAC_NO_CRC)
+/*
+We use an average compression ratio to determine our approximate start location. FLAC files are generally about 50%-70% the size of their
+uncompressed counterparts so we'll use this as a basis. I'm going to split the middle and use a factor of 0.6 to determine the starting
+location.
+*/
+#define DRFLAC_BINARY_SEARCH_APPROX_COMPRESSION_RATIO 0.6f
+
+static drflac_bool32 drflac__seek_to_approximate_flac_frame_to_byte(drflac* pFlac, drflac_uint64 targetByte, drflac_uint64 rangeLo, drflac_uint64 rangeHi, drflac_uint64* pLastSuccessfulSeekOffset)
+{
+ DRFLAC_ASSERT(pFlac != NULL);
+ DRFLAC_ASSERT(pLastSuccessfulSeekOffset != NULL);
+ DRFLAC_ASSERT(targetByte >= rangeLo);
+ DRFLAC_ASSERT(targetByte <= rangeHi);
+
+ *pLastSuccessfulSeekOffset = pFlac->firstFLACFramePosInBytes;
+
+ for (;;) {
+ /* After rangeLo == rangeHi == targetByte fails, we need to break out. */
+ drflac_uint64 lastTargetByte = targetByte;
+
+ /* When seeking to a byte, failure probably means we've attempted to seek beyond the end of the stream. To counter this we just halve it each attempt. */
+ if (!drflac__seek_to_byte(&pFlac->bs, targetByte)) {
+ /* If we couldn't even seek to the first byte in the stream we have a problem. Just abandon the whole thing. */
+ if (targetByte == 0) {
+ drflac__seek_to_first_frame(pFlac); /* Try to recover. */
+ return DRFLAC_FALSE;
+ }
+
+ /* Halve the byte location and continue. */
+ targetByte = rangeLo + ((rangeHi - rangeLo)/2);
+ rangeHi = targetByte;
+ } else {
+ /* Getting here should mean that we have seeked to an appropriate byte. */
+
+ /* Clear the details of the FLAC frame so we don't misreport data. */
+ DRFLAC_ZERO_MEMORY(&pFlac->currentFLACFrame, sizeof(pFlac->currentFLACFrame));
+
+ /*
+ Now seek to the next FLAC frame. We need to decode the entire frame (not just the header) because it's possible for the header to incorrectly pass the
+ CRC check and return bad data. We need to decode the entire frame to be more certain. Although this seems unlikely, this has happened to me in testing
+ so it needs to stay this way for now.
+ */
+#if 1
+ if (!drflac__read_and_decode_next_flac_frame(pFlac)) {
+ /* Halve the byte location and continue. */
+ targetByte = rangeLo + ((rangeHi - rangeLo)/2);
+ rangeHi = targetByte;
+ } else {
+ break;
+ }
+#else
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ /* Halve the byte location and continue. */
+ targetByte = rangeLo + ((rangeHi - rangeLo)/2);
+ rangeHi = targetByte;
+ } else {
+ break;
+ }
+#endif
+ }
+
+ /* We already tried this byte and there are no more to try, break out. */
+ if(targetByte == lastTargetByte) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ /* The current PCM frame needs to be updated based on the frame we just seeked to. */
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &pFlac->currentPCMFrame, NULL);
+
+ DRFLAC_ASSERT(targetByte <= rangeHi);
+
+ *pLastSuccessfulSeekOffset = targetByte;
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__decode_flac_frame_and_seek_forward_by_pcm_frames(drflac* pFlac, drflac_uint64 offset)
+{
+ /* This section of code would be used if we were only decoding the FLAC frame header when calling drflac__seek_to_approximate_flac_frame_to_byte(). */
+#if 0
+ if (drflac__decode_flac_frame(pFlac) != DRFLAC_SUCCESS) {
+ /* We failed to decode this frame which may be due to it being corrupt. We'll just use the next valid FLAC frame. */
+ if (drflac__read_and_decode_next_flac_frame(pFlac) == DRFLAC_FALSE) {
+ return DRFLAC_FALSE;
+ }
+ }
+#endif
+
+ return drflac__seek_forward_by_pcm_frames(pFlac, offset) == offset;
+}
+
+
+static drflac_bool32 drflac__seek_to_pcm_frame__binary_search_internal(drflac* pFlac, drflac_uint64 pcmFrameIndex, drflac_uint64 byteRangeLo, drflac_uint64 byteRangeHi)
+{
+ /* This assumes pFlac->currentPCMFrame is sitting on byteRangeLo upon entry. */
+
+ drflac_uint64 targetByte;
+ drflac_uint64 pcmRangeLo = pFlac->totalPCMFrameCount;
+ drflac_uint64 pcmRangeHi = 0;
+ drflac_uint64 lastSuccessfulSeekOffset = (drflac_uint64)-1;
+ drflac_uint64 closestSeekOffsetBeforeTargetPCMFrame = byteRangeLo;
+ drflac_uint32 seekForwardThreshold = (pFlac->maxBlockSizeInPCMFrames != 0) ? pFlac->maxBlockSizeInPCMFrames*2 : 4096;
+
+ targetByte = byteRangeLo + (drflac_uint64)(((drflac_int64)((pcmFrameIndex - pFlac->currentPCMFrame) * pFlac->channels * pFlac->bitsPerSample)/8.0f) * DRFLAC_BINARY_SEARCH_APPROX_COMPRESSION_RATIO);
+ if (targetByte > byteRangeHi) {
+ targetByte = byteRangeHi;
+ }
+
+ for (;;) {
+ if (drflac__seek_to_approximate_flac_frame_to_byte(pFlac, targetByte, byteRangeLo, byteRangeHi, &lastSuccessfulSeekOffset)) {
+ /* We found a FLAC frame. We need to check if it contains the sample we're looking for. */
+ drflac_uint64 newPCMRangeLo;
+ drflac_uint64 newPCMRangeHi;
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &newPCMRangeLo, &newPCMRangeHi);
+
+ /* If we selected the same frame, it means we should be pretty close. Just decode the rest. */
+ if (pcmRangeLo == newPCMRangeLo) {
+ if (!drflac__seek_to_approximate_flac_frame_to_byte(pFlac, closestSeekOffsetBeforeTargetPCMFrame, closestSeekOffsetBeforeTargetPCMFrame, byteRangeHi, &lastSuccessfulSeekOffset)) {
+ break; /* Failed to seek to closest frame. */
+ }
+
+ if (drflac__decode_flac_frame_and_seek_forward_by_pcm_frames(pFlac, pcmFrameIndex - pFlac->currentPCMFrame)) {
+ return DRFLAC_TRUE;
+ } else {
+ break; /* Failed to seek forward. */
+ }
+ }
+
+ pcmRangeLo = newPCMRangeLo;
+ pcmRangeHi = newPCMRangeHi;
+
+ if (pcmRangeLo <= pcmFrameIndex && pcmRangeHi >= pcmFrameIndex) {
+ /* The target PCM frame is in this FLAC frame. */
+ if (drflac__decode_flac_frame_and_seek_forward_by_pcm_frames(pFlac, pcmFrameIndex - pFlac->currentPCMFrame) ) {
+ return DRFLAC_TRUE;
+ } else {
+ break; /* Failed to seek to FLAC frame. */
+ }
+ } else {
+ const float approxCompressionRatio = (drflac_int64)(lastSuccessfulSeekOffset - pFlac->firstFLACFramePosInBytes) / ((drflac_int64)(pcmRangeLo * pFlac->channels * pFlac->bitsPerSample)/8.0f);
+
+ if (pcmRangeLo > pcmFrameIndex) {
+ /* We seeked too far forward. We need to move our target byte backward and try again. */
+ byteRangeHi = lastSuccessfulSeekOffset;
+ if (byteRangeLo > byteRangeHi) {
+ byteRangeLo = byteRangeHi;
+ }
+
+ targetByte = byteRangeLo + ((byteRangeHi - byteRangeLo) / 2);
+ if (targetByte < byteRangeLo) {
+ targetByte = byteRangeLo;
+ }
+ } else /*if (pcmRangeHi < pcmFrameIndex)*/ {
+ /* We didn't seek far enough. We need to move our target byte forward and try again. */
+
+ /* If we're close enough we can just seek forward. */
+ if ((pcmFrameIndex - pcmRangeLo) < seekForwardThreshold) {
+ if (drflac__decode_flac_frame_and_seek_forward_by_pcm_frames(pFlac, pcmFrameIndex - pFlac->currentPCMFrame)) {
+ return DRFLAC_TRUE;
+ } else {
+ break; /* Failed to seek to FLAC frame. */
+ }
+ } else {
+ byteRangeLo = lastSuccessfulSeekOffset;
+ if (byteRangeHi < byteRangeLo) {
+ byteRangeHi = byteRangeLo;
+ }
+
+ targetByte = lastSuccessfulSeekOffset + (drflac_uint64)(((drflac_int64)((pcmFrameIndex-pcmRangeLo) * pFlac->channels * pFlac->bitsPerSample)/8.0f) * approxCompressionRatio);
+ if (targetByte > byteRangeHi) {
+ targetByte = byteRangeHi;
+ }
+
+ if (closestSeekOffsetBeforeTargetPCMFrame < lastSuccessfulSeekOffset) {
+ closestSeekOffsetBeforeTargetPCMFrame = lastSuccessfulSeekOffset;
+ }
+ }
+ }
+ }
+ } else {
+ /* Getting here is really bad. We just recover as best we can, but moving to the first frame in the stream, and then abort. */
+ break;
+ }
+ }
+
+ drflac__seek_to_first_frame(pFlac); /* <-- Try to recover. */
+ return DRFLAC_FALSE;
+}
+
+static drflac_bool32 drflac__seek_to_pcm_frame__binary_search(drflac* pFlac, drflac_uint64 pcmFrameIndex)
+{
+ drflac_uint64 byteRangeLo;
+ drflac_uint64 byteRangeHi;
+ drflac_uint32 seekForwardThreshold = (pFlac->maxBlockSizeInPCMFrames != 0) ? pFlac->maxBlockSizeInPCMFrames*2 : 4096;
+
+ /* Our algorithm currently assumes the FLAC stream is currently sitting at the start. */
+ if (drflac__seek_to_first_frame(pFlac) == DRFLAC_FALSE) {
+ return DRFLAC_FALSE;
+ }
+
+ /* If we're close enough to the start, just move to the start and seek forward. */
+ if (pcmFrameIndex < seekForwardThreshold) {
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFrameIndex) == pcmFrameIndex;
+ }
+
+ /*
+ Our starting byte range is the byte position of the first FLAC frame and the approximate end of the file as if it were completely uncompressed. This ensures
+ the entire file is included, even though most of the time it'll exceed the end of the actual stream. This is OK as the frame searching logic will handle it.
+ */
+ byteRangeLo = pFlac->firstFLACFramePosInBytes;
+ byteRangeHi = pFlac->firstFLACFramePosInBytes + (drflac_uint64)((drflac_int64)(pFlac->totalPCMFrameCount * pFlac->channels * pFlac->bitsPerSample)/8.0f);
+
+ return drflac__seek_to_pcm_frame__binary_search_internal(pFlac, pcmFrameIndex, byteRangeLo, byteRangeHi);
+}
+#endif /* !DR_FLAC_NO_CRC */
+
+static drflac_bool32 drflac__seek_to_pcm_frame__seek_table(drflac* pFlac, drflac_uint64 pcmFrameIndex)
+{
+ drflac_uint32 iClosestSeekpoint = 0;
+ drflac_bool32 isMidFrame = DRFLAC_FALSE;
+ drflac_uint64 runningPCMFrameCount;
+ drflac_uint32 iSeekpoint;
+
+
+ DRFLAC_ASSERT(pFlac != NULL);
+
+ if (pFlac->pSeekpoints == NULL || pFlac->seekpointCount == 0) {
+ return DRFLAC_FALSE;
+ }
+
+ for (iSeekpoint = 0; iSeekpoint < pFlac->seekpointCount; ++iSeekpoint) {
+ if (pFlac->pSeekpoints[iSeekpoint].firstPCMFrame >= pcmFrameIndex) {
+ break;
+ }
+
+ iClosestSeekpoint = iSeekpoint;
+ }
+
+ /* There's been cases where the seek table contains only zeros. We need to do some basic validation on the closest seekpoint. */
+ if (pFlac->pSeekpoints[iClosestSeekpoint].pcmFrameCount == 0 || pFlac->pSeekpoints[iClosestSeekpoint].pcmFrameCount > pFlac->maxBlockSizeInPCMFrames) {
+ return DRFLAC_FALSE;
+ }
+ if (pFlac->pSeekpoints[iClosestSeekpoint].firstPCMFrame > pFlac->totalPCMFrameCount && pFlac->totalPCMFrameCount > 0) {
+ return DRFLAC_FALSE;
+ }
+
+#if !defined(DR_FLAC_NO_CRC)
+ /* At this point we should know the closest seek point. We can use a binary search for this. We need to know the total sample count for this. */
+ if (pFlac->totalPCMFrameCount > 0) {
+ drflac_uint64 byteRangeLo;
+ drflac_uint64 byteRangeHi;
+
+ byteRangeHi = pFlac->firstFLACFramePosInBytes + (drflac_uint64)((drflac_int64)(pFlac->totalPCMFrameCount * pFlac->channels * pFlac->bitsPerSample)/8.0f);
+ byteRangeLo = pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset;
+
+ /*
+ If our closest seek point is not the last one, we only need to search between it and the next one. The section below calculates an appropriate starting
+ value for byteRangeHi which will clamp it appropriately.
+
+ Note that the next seekpoint must have an offset greater than the closest seekpoint because otherwise our binary search algorithm will break down. There
+ have been cases where a seektable consists of seek points where every byte offset is set to 0 which causes problems. If this happens we need to abort.
+ */
+ if (iClosestSeekpoint < pFlac->seekpointCount-1) {
+ drflac_uint32 iNextSeekpoint = iClosestSeekpoint + 1;
+
+ /* Basic validation on the seekpoints to ensure they're usable. */
+ if (pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset >= pFlac->pSeekpoints[iNextSeekpoint].flacFrameOffset || pFlac->pSeekpoints[iNextSeekpoint].pcmFrameCount == 0) {
+ return DRFLAC_FALSE; /* The next seekpoint doesn't look right. The seek table cannot be trusted from here. Abort. */
+ }
+
+ if (pFlac->pSeekpoints[iNextSeekpoint].firstPCMFrame != (((drflac_uint64)0xFFFFFFFF << 32) | 0xFFFFFFFF)) { /* Make sure it's not a placeholder seekpoint. */
+ byteRangeHi = pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iNextSeekpoint].flacFrameOffset - 1; /* byteRangeHi must be zero based. */
+ }
+ }
+
+ if (drflac__seek_to_byte(&pFlac->bs, pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset)) {
+ if (drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &pFlac->currentPCMFrame, NULL);
+
+ if (drflac__seek_to_pcm_frame__binary_search_internal(pFlac, pcmFrameIndex, byteRangeLo, byteRangeHi)) {
+ return DRFLAC_TRUE;
+ }
+ }
+ }
+ }
+#endif /* !DR_FLAC_NO_CRC */
+
+ /* Getting here means we need to use a slower algorithm because the binary search method failed or cannot be used. */
+
+ /*
+ If we are seeking forward and the closest seekpoint is _before_ the current sample, we just seek forward from where we are. Otherwise we start seeking
+ from the seekpoint's first sample.
+ */
+ if (pcmFrameIndex >= pFlac->currentPCMFrame && pFlac->pSeekpoints[iClosestSeekpoint].firstPCMFrame <= pFlac->currentPCMFrame) {
+ /* Optimized case. Just seek forward from where we are. */
+ runningPCMFrameCount = pFlac->currentPCMFrame;
+
+ /* The frame header for the first frame may not yet have been read. We need to do that if necessary. */
+ if (pFlac->currentPCMFrame == 0 && pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ } else {
+ isMidFrame = DRFLAC_TRUE;
+ }
+ } else {
+ /* Slower case. Seek to the start of the seekpoint and then seek forward from there. */
+ runningPCMFrameCount = pFlac->pSeekpoints[iClosestSeekpoint].firstPCMFrame;
+
+ if (!drflac__seek_to_byte(&pFlac->bs, pFlac->firstFLACFramePosInBytes + pFlac->pSeekpoints[iClosestSeekpoint].flacFrameOffset)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Grab the frame the seekpoint is sitting on in preparation for the sample-exact seeking below. */
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ for (;;) {
+ drflac_uint64 pcmFrameCountInThisFLACFrame;
+ drflac_uint64 firstPCMFrameInFLACFrame = 0;
+ drflac_uint64 lastPCMFrameInFLACFrame = 0;
+
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &firstPCMFrameInFLACFrame, &lastPCMFrameInFLACFrame);
+
+ pcmFrameCountInThisFLACFrame = (lastPCMFrameInFLACFrame - firstPCMFrameInFLACFrame) + 1;
+ if (pcmFrameIndex < (runningPCMFrameCount + pcmFrameCountInThisFLACFrame)) {
+ /*
+ The sample should be in this frame. We need to fully decode it, but if it's an invalid frame (a CRC mismatch) we need to pretend
+ it never existed and keep iterating.
+ */
+ drflac_uint64 pcmFramesToDecode = pcmFrameIndex - runningPCMFrameCount;
+
+ if (!isMidFrame) {
+ drflac_result result = drflac__decode_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ /* The frame is valid. We just need to skip over some samples to ensure it's sample-exact. */
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFramesToDecode) == pcmFramesToDecode; /* <-- If this fails, something bad has happened (it should never fail). */
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ goto next_iteration; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /* We started seeking mid-frame which means we need to skip the frame decoding part. */
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFramesToDecode) == pcmFramesToDecode;
+ }
+ } else {
+ /*
+ It's not in this frame. We need to seek past the frame, but check if there was a CRC mismatch. If so, we pretend this
+ frame never existed and leave the running sample count untouched.
+ */
+ if (!isMidFrame) {
+ drflac_result result = drflac__seek_to_next_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ runningPCMFrameCount += pcmFrameCountInThisFLACFrame;
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ goto next_iteration; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /*
+ We started seeking mid-frame which means we need to seek by reading to the end of the frame instead of with
+ drflac__seek_to_next_flac_frame() which only works if the decoder is sitting on the byte just after the frame header.
+ */
+ runningPCMFrameCount += pFlac->currentFLACFrame.pcmFramesRemaining;
+ pFlac->currentFLACFrame.pcmFramesRemaining = 0;
+ isMidFrame = DRFLAC_FALSE;
+ }
+
+ /* If we are seeking to the end of the file and we've just hit it, we're done. */
+ if (pcmFrameIndex == pFlac->totalPCMFrameCount && runningPCMFrameCount == pFlac->totalPCMFrameCount) {
+ return DRFLAC_TRUE;
+ }
+ }
+
+ next_iteration:
+ /* Grab the next frame in preparation for the next iteration. */
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+ }
+}
+
+
+#ifndef DR_FLAC_NO_OGG
+typedef struct
+{
+ drflac_uint8 capturePattern[4]; /* Should be "OggS" */
+ drflac_uint8 structureVersion; /* Always 0. */
+ drflac_uint8 headerType;
+ drflac_uint64 granulePosition;
+ drflac_uint32 serialNumber;
+ drflac_uint32 sequenceNumber;
+ drflac_uint32 checksum;
+ drflac_uint8 segmentCount;
+ drflac_uint8 segmentTable[255];
+} drflac_ogg_page_header;
+#endif
+
+typedef struct
+{
+ drflac_read_proc onRead;
+ drflac_seek_proc onSeek;
+ drflac_meta_proc onMeta;
+ drflac_container container;
+ void* pUserData;
+ void* pUserDataMD;
+ drflac_uint32 sampleRate;
+ drflac_uint8 channels;
+ drflac_uint8 bitsPerSample;
+ drflac_uint64 totalPCMFrameCount;
+ drflac_uint16 maxBlockSizeInPCMFrames;
+ drflac_uint64 runningFilePos;
+ drflac_bool32 hasStreamInfoBlock;
+ drflac_bool32 hasMetadataBlocks;
+ drflac_bs bs; /* <-- A bit streamer is required for loading data during initialization. */
+ drflac_frame_header firstFrameHeader; /* <-- The header of the first frame that was read during relaxed initalization. Only set if there is no STREAMINFO block. */
+
+#ifndef DR_FLAC_NO_OGG
+ drflac_uint32 oggSerial;
+ drflac_uint64 oggFirstBytePos;
+ drflac_ogg_page_header oggBosHeader;
+#endif
+} drflac_init_info;
+
+static DRFLAC_INLINE void drflac__decode_block_header(drflac_uint32 blockHeader, drflac_uint8* isLastBlock, drflac_uint8* blockType, drflac_uint32* blockSize)
+{
+ blockHeader = drflac__be2host_32(blockHeader);
+ *isLastBlock = (drflac_uint8)((blockHeader & 0x80000000UL) >> 31);
+ *blockType = (drflac_uint8)((blockHeader & 0x7F000000UL) >> 24);
+ *blockSize = (blockHeader & 0x00FFFFFFUL);
+}
+
+static DRFLAC_INLINE drflac_bool32 drflac__read_and_decode_block_header(drflac_read_proc onRead, void* pUserData, drflac_uint8* isLastBlock, drflac_uint8* blockType, drflac_uint32* blockSize)
+{
+ drflac_uint32 blockHeader;
+
+ *blockSize = 0;
+ if (onRead(pUserData, &blockHeader, 4) != 4) {
+ return DRFLAC_FALSE;
+ }
+
+ drflac__decode_block_header(blockHeader, isLastBlock, blockType, blockSize);
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__read_streaminfo(drflac_read_proc onRead, void* pUserData, drflac_streaminfo* pStreamInfo)
+{
+ drflac_uint32 blockSizes;
+ drflac_uint64 frameSizes = 0;
+ drflac_uint64 importantProps;
+ drflac_uint8 md5[16];
+
+ /* min/max block size. */
+ if (onRead(pUserData, &blockSizes, 4) != 4) {
+ return DRFLAC_FALSE;
+ }
+
+ /* min/max frame size. */
+ if (onRead(pUserData, &frameSizes, 6) != 6) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Sample rate, channels, bits per sample and total sample count. */
+ if (onRead(pUserData, &importantProps, 8) != 8) {
+ return DRFLAC_FALSE;
+ }
+
+ /* MD5 */
+ if (onRead(pUserData, md5, sizeof(md5)) != sizeof(md5)) {
+ return DRFLAC_FALSE;
+ }
+
+ blockSizes = drflac__be2host_32(blockSizes);
+ frameSizes = drflac__be2host_64(frameSizes);
+ importantProps = drflac__be2host_64(importantProps);
+
+ pStreamInfo->minBlockSizeInPCMFrames = (drflac_uint16)((blockSizes & 0xFFFF0000) >> 16);
+ pStreamInfo->maxBlockSizeInPCMFrames = (drflac_uint16) (blockSizes & 0x0000FFFF);
+ pStreamInfo->minFrameSizeInPCMFrames = (drflac_uint32)((frameSizes & (((drflac_uint64)0x00FFFFFF << 16) << 24)) >> 40);
+ pStreamInfo->maxFrameSizeInPCMFrames = (drflac_uint32)((frameSizes & (((drflac_uint64)0x00FFFFFF << 16) << 0)) >> 16);
+ pStreamInfo->sampleRate = (drflac_uint32)((importantProps & (((drflac_uint64)0x000FFFFF << 16) << 28)) >> 44);
+ pStreamInfo->channels = (drflac_uint8 )((importantProps & (((drflac_uint64)0x0000000E << 16) << 24)) >> 41) + 1;
+ pStreamInfo->bitsPerSample = (drflac_uint8 )((importantProps & (((drflac_uint64)0x0000001F << 16) << 20)) >> 36) + 1;
+ pStreamInfo->totalPCMFrameCount = ((importantProps & ((((drflac_uint64)0x0000000F << 16) << 16) | 0xFFFFFFFF)));
+ DRFLAC_COPY_MEMORY(pStreamInfo->md5, md5, sizeof(md5));
+
+ return DRFLAC_TRUE;
+}
+
+
+static void* drflac__malloc_default(size_t sz, void* pUserData)
+{
+ (void)pUserData;
+ return DRFLAC_MALLOC(sz);
+}
+
+static void* drflac__realloc_default(void* p, size_t sz, void* pUserData)
+{
+ (void)pUserData;
+ return DRFLAC_REALLOC(p, sz);
+}
+
+static void drflac__free_default(void* p, void* pUserData)
+{
+ (void)pUserData;
+ DRFLAC_FREE(p);
+}
+
+
+static void* drflac__malloc_from_callbacks(size_t sz, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ if (pAllocationCallbacks == NULL) {
+ return NULL;
+ }
+
+ if (pAllocationCallbacks->onMalloc != NULL) {
+ return pAllocationCallbacks->onMalloc(sz, pAllocationCallbacks->pUserData);
+ }
+
+ /* Try using realloc(). */
+ if (pAllocationCallbacks->onRealloc != NULL) {
+ return pAllocationCallbacks->onRealloc(NULL, sz, pAllocationCallbacks->pUserData);
+ }
+
+ return NULL;
+}
+
+static void* drflac__realloc_from_callbacks(void* p, size_t szNew, size_t szOld, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ if (pAllocationCallbacks == NULL) {
+ return NULL;
+ }
+
+ if (pAllocationCallbacks->onRealloc != NULL) {
+ return pAllocationCallbacks->onRealloc(p, szNew, pAllocationCallbacks->pUserData);
+ }
+
+ /* Try emulating realloc() in terms of malloc()/free(). */
+ if (pAllocationCallbacks->onMalloc != NULL && pAllocationCallbacks->onFree != NULL) {
+ void* p2;
+
+ p2 = pAllocationCallbacks->onMalloc(szNew, pAllocationCallbacks->pUserData);
+ if (p2 == NULL) {
+ return NULL;
+ }
+
+ if (p != NULL) {
+ DRFLAC_COPY_MEMORY(p2, p, szOld);
+ pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData);
+ }
+
+ return p2;
+ }
+
+ return NULL;
+}
+
+static void drflac__free_from_callbacks(void* p, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ if (p == NULL || pAllocationCallbacks == NULL) {
+ return;
+ }
+
+ if (pAllocationCallbacks->onFree != NULL) {
+ pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData);
+ }
+}
+
+
+static drflac_bool32 drflac__read_and_decode_metadata(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, void* pUserData, void* pUserDataMD, drflac_uint64* pFirstFramePos, drflac_uint64* pSeektablePos, drflac_uint32* pSeektableSize, drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ /*
+ We want to keep track of the byte position in the stream of the seektable. At the time of calling this function we know that
+ we'll be sitting on byte 42.
+ */
+ drflac_uint64 runningFilePos = 42;
+ drflac_uint64 seektablePos = 0;
+ drflac_uint32 seektableSize = 0;
+
+ for (;;) {
+ drflac_metadata metadata;
+ drflac_uint8 isLastBlock = 0;
+ drflac_uint8 blockType;
+ drflac_uint32 blockSize;
+ if (drflac__read_and_decode_block_header(onRead, pUserData, &isLastBlock, &blockType, &blockSize) == DRFLAC_FALSE) {
+ return DRFLAC_FALSE;
+ }
+ runningFilePos += 4;
+
+ metadata.type = blockType;
+ metadata.pRawData = NULL;
+ metadata.rawDataSize = 0;
+
+ switch (blockType)
+ {
+ case DRFLAC_METADATA_BLOCK_TYPE_APPLICATION:
+ {
+ if (blockSize < 4) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onMeta) {
+ void* pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+ metadata.data.application.id = drflac__be2host_32(*(drflac_uint32*)pRawData);
+ metadata.data.application.pData = (const void*)((drflac_uint8*)pRawData + sizeof(drflac_uint32));
+ metadata.data.application.dataSize = blockSize - sizeof(drflac_uint32);
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_SEEKTABLE:
+ {
+ seektablePos = runningFilePos;
+ seektableSize = blockSize;
+
+ if (onMeta) {
+ drflac_uint32 iSeekpoint;
+ void* pRawData;
+
+ pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+ metadata.data.seektable.seekpointCount = blockSize/sizeof(drflac_seekpoint);
+ metadata.data.seektable.pSeekpoints = (const drflac_seekpoint*)pRawData;
+
+ /* Endian swap. */
+ for (iSeekpoint = 0; iSeekpoint < metadata.data.seektable.seekpointCount; ++iSeekpoint) {
+ drflac_seekpoint* pSeekpoint = (drflac_seekpoint*)pRawData + iSeekpoint;
+ pSeekpoint->firstPCMFrame = drflac__be2host_64(pSeekpoint->firstPCMFrame);
+ pSeekpoint->flacFrameOffset = drflac__be2host_64(pSeekpoint->flacFrameOffset);
+ pSeekpoint->pcmFrameCount = drflac__be2host_16(pSeekpoint->pcmFrameCount);
+ }
+
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_VORBIS_COMMENT:
+ {
+ if (blockSize < 8) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onMeta) {
+ void* pRawData;
+ const char* pRunningData;
+ const char* pRunningDataEnd;
+ drflac_uint32 i;
+
+ pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+
+ pRunningData = (const char*)pRawData;
+ pRunningDataEnd = (const char*)pRawData + blockSize;
+
+ metadata.data.vorbis_comment.vendorLength = drflac__le2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+
+ /* Need space for the rest of the block */
+ if ((pRunningDataEnd - pRunningData) - 4 < (drflac_int64)metadata.data.vorbis_comment.vendorLength) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+ metadata.data.vorbis_comment.vendor = pRunningData; pRunningData += metadata.data.vorbis_comment.vendorLength;
+ metadata.data.vorbis_comment.commentCount = drflac__le2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+
+ /* Need space for 'commentCount' comments after the block, which at minimum is a drflac_uint32 per comment */
+ if ((pRunningDataEnd - pRunningData) / sizeof(drflac_uint32) < metadata.data.vorbis_comment.commentCount) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+ metadata.data.vorbis_comment.pComments = pRunningData;
+
+ /* Check that the comments section is valid before passing it to the callback */
+ for (i = 0; i < metadata.data.vorbis_comment.commentCount; ++i) {
+ drflac_uint32 commentLength;
+
+ if (pRunningDataEnd - pRunningData < 4) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ commentLength = drflac__le2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ if (pRunningDataEnd - pRunningData < (drflac_int64)commentLength) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+ pRunningData += commentLength;
+ }
+
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_CUESHEET:
+ {
+ if (blockSize < 396) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onMeta) {
+ void* pRawData;
+ const char* pRunningData;
+ const char* pRunningDataEnd;
+ drflac_uint8 iTrack;
+ drflac_uint8 iIndex;
+
+ pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+
+ pRunningData = (const char*)pRawData;
+ pRunningDataEnd = (const char*)pRawData + blockSize;
+
+ DRFLAC_COPY_MEMORY(metadata.data.cuesheet.catalog, pRunningData, 128); pRunningData += 128;
+ metadata.data.cuesheet.leadInSampleCount = drflac__be2host_64(*(const drflac_uint64*)pRunningData); pRunningData += 8;
+ metadata.data.cuesheet.isCD = (pRunningData[0] & 0x80) != 0; pRunningData += 259;
+ metadata.data.cuesheet.trackCount = pRunningData[0]; pRunningData += 1;
+ metadata.data.cuesheet.pTrackData = pRunningData;
+
+ /* Check that the cuesheet tracks are valid before passing it to the callback */
+ for (iTrack = 0; iTrack < metadata.data.cuesheet.trackCount; ++iTrack) {
+ drflac_uint8 indexCount;
+ drflac_uint32 indexPointSize;
+
+ if (pRunningDataEnd - pRunningData < 36) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ /* Skip to the index point count */
+ pRunningData += 35;
+ indexCount = pRunningData[0]; pRunningData += 1;
+ indexPointSize = indexCount * sizeof(drflac_cuesheet_track_index);
+ if (pRunningDataEnd - pRunningData < (drflac_int64)indexPointSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ /* Endian swap. */
+ for (iIndex = 0; iIndex < indexCount; ++iIndex) {
+ drflac_cuesheet_track_index* pTrack = (drflac_cuesheet_track_index*)pRunningData;
+ pRunningData += sizeof(drflac_cuesheet_track_index);
+ pTrack->offset = drflac__be2host_64(pTrack->offset);
+ }
+ }
+
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_PICTURE:
+ {
+ if (blockSize < 32) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onMeta) {
+ void* pRawData;
+ const char* pRunningData;
+ const char* pRunningDataEnd;
+
+ pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+
+ pRunningData = (const char*)pRawData;
+ pRunningDataEnd = (const char*)pRawData + blockSize;
+
+ metadata.data.picture.type = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.mimeLength = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+
+ /* Need space for the rest of the block */
+ if ((pRunningDataEnd - pRunningData) - 24 < (drflac_int64)metadata.data.picture.mimeLength) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+ metadata.data.picture.mime = pRunningData; pRunningData += metadata.data.picture.mimeLength;
+ metadata.data.picture.descriptionLength = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+
+ /* Need space for the rest of the block */
+ if ((pRunningDataEnd - pRunningData) - 20 < (drflac_int64)metadata.data.picture.descriptionLength) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+ metadata.data.picture.description = pRunningData; pRunningData += metadata.data.picture.descriptionLength;
+ metadata.data.picture.width = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.height = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.colorDepth = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.indexColorCount = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.pictureDataSize = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ metadata.data.picture.pPictureData = (const drflac_uint8*)pRunningData;
+
+ /* Need space for the picture after the block */
+ if (pRunningDataEnd - pRunningData < (drflac_int64)metadata.data.picture.pictureDataSize) { /* <-- Note the order of operations to avoid overflow to a valid value */
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_PADDING:
+ {
+ if (onMeta) {
+ metadata.data.padding.unused = 0;
+
+ /* Padding doesn't have anything meaningful in it, so just skip over it, but make sure the caller is aware of it by firing the callback. */
+ if (!onSeek(pUserData, blockSize, drflac_seek_origin_current)) {
+ isLastBlock = DRFLAC_TRUE; /* An error occurred while seeking. Attempt to recover by treating this as the last block which will in turn terminate the loop. */
+ } else {
+ onMeta(pUserDataMD, &metadata);
+ }
+ }
+ } break;
+
+ case DRFLAC_METADATA_BLOCK_TYPE_INVALID:
+ {
+ /* Invalid chunk. Just skip over this one. */
+ if (onMeta) {
+ if (!onSeek(pUserData, blockSize, drflac_seek_origin_current)) {
+ isLastBlock = DRFLAC_TRUE; /* An error occurred while seeking. Attempt to recover by treating this as the last block which will in turn terminate the loop. */
+ }
+ }
+ } break;
+
+ default:
+ {
+ /*
+ It's an unknown chunk, but not necessarily invalid. There's a chance more metadata blocks might be defined later on, so we
+ can at the very least report the chunk to the application and let it look at the raw data.
+ */
+ if (onMeta) {
+ void* pRawData = drflac__malloc_from_callbacks(blockSize, pAllocationCallbacks);
+ if (pRawData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ if (onRead(pUserData, pRawData, blockSize) != blockSize) {
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ return DRFLAC_FALSE;
+ }
+
+ metadata.pRawData = pRawData;
+ metadata.rawDataSize = blockSize;
+ onMeta(pUserDataMD, &metadata);
+
+ drflac__free_from_callbacks(pRawData, pAllocationCallbacks);
+ }
+ } break;
+ }
+
+ /* If we're not handling metadata, just skip over the block. If we are, it will have been handled earlier in the switch statement above. */
+ if (onMeta == NULL && blockSize > 0) {
+ if (!onSeek(pUserData, blockSize, drflac_seek_origin_current)) {
+ isLastBlock = DRFLAC_TRUE;
+ }
+ }
+
+ runningFilePos += blockSize;
+ if (isLastBlock) {
+ break;
+ }
+ }
+
+ *pSeektablePos = seektablePos;
+ *pSeektableSize = seektableSize;
+ *pFirstFramePos = runningFilePos;
+
+ return DRFLAC_TRUE;
+}
+
+static drflac_bool32 drflac__init_private__native(drflac_init_info* pInit, drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, void* pUserData, void* pUserDataMD, drflac_bool32 relaxed)
+{
+ /* Pre Condition: The bit stream should be sitting just past the 4-byte id header. */
+
+ drflac_uint8 isLastBlock;
+ drflac_uint8 blockType;
+ drflac_uint32 blockSize;
+
+ (void)onSeek;
+
+ pInit->container = drflac_container_native;
+
+ /* The first metadata block should be the STREAMINFO block. */
+ if (!drflac__read_and_decode_block_header(onRead, pUserData, &isLastBlock, &blockType, &blockSize)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (blockType != DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO || blockSize != 34) {
+ if (!relaxed) {
+ /* We're opening in strict mode and the first block is not the STREAMINFO block. Error. */
+ return DRFLAC_FALSE;
+ } else {
+ /*
+ Relaxed mode. To open from here we need to just find the first frame and set the sample rate, etc. to whatever is defined
+ for that frame.
+ */
+ pInit->hasStreamInfoBlock = DRFLAC_FALSE;
+ pInit->hasMetadataBlocks = DRFLAC_FALSE;
+
+ if (!drflac__read_next_flac_frame_header(&pInit->bs, 0, &pInit->firstFrameHeader)) {
+ return DRFLAC_FALSE; /* Couldn't find a frame. */
+ }
+
+ if (pInit->firstFrameHeader.bitsPerSample == 0) {
+ return DRFLAC_FALSE; /* Failed to initialize because the first frame depends on the STREAMINFO block, which does not exist. */
+ }
+
+ pInit->sampleRate = pInit->firstFrameHeader.sampleRate;
+ pInit->channels = drflac__get_channel_count_from_channel_assignment(pInit->firstFrameHeader.channelAssignment);
+ pInit->bitsPerSample = pInit->firstFrameHeader.bitsPerSample;
+ pInit->maxBlockSizeInPCMFrames = 65535; /* <-- See notes here: https://xiph.org/flac/format.html#metadata_block_streaminfo */
+ return DRFLAC_TRUE;
+ }
+ } else {
+ drflac_streaminfo streaminfo;
+ if (!drflac__read_streaminfo(onRead, pUserData, &streaminfo)) {
+ return DRFLAC_FALSE;
+ }
+
+ pInit->hasStreamInfoBlock = DRFLAC_TRUE;
+ pInit->sampleRate = streaminfo.sampleRate;
+ pInit->channels = streaminfo.channels;
+ pInit->bitsPerSample = streaminfo.bitsPerSample;
+ pInit->totalPCMFrameCount = streaminfo.totalPCMFrameCount;
+ pInit->maxBlockSizeInPCMFrames = streaminfo.maxBlockSizeInPCMFrames; /* Don't care about the min block size - only the max (used for determining the size of the memory allocation). */
+ pInit->hasMetadataBlocks = !isLastBlock;
+
+ if (onMeta) {
+ drflac_metadata metadata;
+ metadata.type = DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO;
+ metadata.pRawData = NULL;
+ metadata.rawDataSize = 0;
+ metadata.data.streaminfo = streaminfo;
+ onMeta(pUserDataMD, &metadata);
+ }
+
+ return DRFLAC_TRUE;
+ }
+}
+
+#ifndef DR_FLAC_NO_OGG
+#define DRFLAC_OGG_MAX_PAGE_SIZE 65307
+#define DRFLAC_OGG_CAPTURE_PATTERN_CRC32 1605413199 /* CRC-32 of "OggS". */
+
+typedef enum
+{
+ drflac_ogg_recover_on_crc_mismatch,
+ drflac_ogg_fail_on_crc_mismatch
+} drflac_ogg_crc_mismatch_recovery;
+
+#ifndef DR_FLAC_NO_CRC
+static drflac_uint32 drflac__crc32_table[] = {
+ 0x00000000L, 0x04C11DB7L, 0x09823B6EL, 0x0D4326D9L,
+ 0x130476DCL, 0x17C56B6BL, 0x1A864DB2L, 0x1E475005L,
+ 0x2608EDB8L, 0x22C9F00FL, 0x2F8AD6D6L, 0x2B4BCB61L,
+ 0x350C9B64L, 0x31CD86D3L, 0x3C8EA00AL, 0x384FBDBDL,
+ 0x4C11DB70L, 0x48D0C6C7L, 0x4593E01EL, 0x4152FDA9L,
+ 0x5F15ADACL, 0x5BD4B01BL, 0x569796C2L, 0x52568B75L,
+ 0x6A1936C8L, 0x6ED82B7FL, 0x639B0DA6L, 0x675A1011L,
+ 0x791D4014L, 0x7DDC5DA3L, 0x709F7B7AL, 0x745E66CDL,
+ 0x9823B6E0L, 0x9CE2AB57L, 0x91A18D8EL, 0x95609039L,
+ 0x8B27C03CL, 0x8FE6DD8BL, 0x82A5FB52L, 0x8664E6E5L,
+ 0xBE2B5B58L, 0xBAEA46EFL, 0xB7A96036L, 0xB3687D81L,
+ 0xAD2F2D84L, 0xA9EE3033L, 0xA4AD16EAL, 0xA06C0B5DL,
+ 0xD4326D90L, 0xD0F37027L, 0xDDB056FEL, 0xD9714B49L,
+ 0xC7361B4CL, 0xC3F706FBL, 0xCEB42022L, 0xCA753D95L,
+ 0xF23A8028L, 0xF6FB9D9FL, 0xFBB8BB46L, 0xFF79A6F1L,
+ 0xE13EF6F4L, 0xE5FFEB43L, 0xE8BCCD9AL, 0xEC7DD02DL,
+ 0x34867077L, 0x30476DC0L, 0x3D044B19L, 0x39C556AEL,
+ 0x278206ABL, 0x23431B1CL, 0x2E003DC5L, 0x2AC12072L,
+ 0x128E9DCFL, 0x164F8078L, 0x1B0CA6A1L, 0x1FCDBB16L,
+ 0x018AEB13L, 0x054BF6A4L, 0x0808D07DL, 0x0CC9CDCAL,
+ 0x7897AB07L, 0x7C56B6B0L, 0x71159069L, 0x75D48DDEL,
+ 0x6B93DDDBL, 0x6F52C06CL, 0x6211E6B5L, 0x66D0FB02L,
+ 0x5E9F46BFL, 0x5A5E5B08L, 0x571D7DD1L, 0x53DC6066L,
+ 0x4D9B3063L, 0x495A2DD4L, 0x44190B0DL, 0x40D816BAL,
+ 0xACA5C697L, 0xA864DB20L, 0xA527FDF9L, 0xA1E6E04EL,
+ 0xBFA1B04BL, 0xBB60ADFCL, 0xB6238B25L, 0xB2E29692L,
+ 0x8AAD2B2FL, 0x8E6C3698L, 0x832F1041L, 0x87EE0DF6L,
+ 0x99A95DF3L, 0x9D684044L, 0x902B669DL, 0x94EA7B2AL,
+ 0xE0B41DE7L, 0xE4750050L, 0xE9362689L, 0xEDF73B3EL,
+ 0xF3B06B3BL, 0xF771768CL, 0xFA325055L, 0xFEF34DE2L,
+ 0xC6BCF05FL, 0xC27DEDE8L, 0xCF3ECB31L, 0xCBFFD686L,
+ 0xD5B88683L, 0xD1799B34L, 0xDC3ABDEDL, 0xD8FBA05AL,
+ 0x690CE0EEL, 0x6DCDFD59L, 0x608EDB80L, 0x644FC637L,
+ 0x7A089632L, 0x7EC98B85L, 0x738AAD5CL, 0x774BB0EBL,
+ 0x4F040D56L, 0x4BC510E1L, 0x46863638L, 0x42472B8FL,
+ 0x5C007B8AL, 0x58C1663DL, 0x558240E4L, 0x51435D53L,
+ 0x251D3B9EL, 0x21DC2629L, 0x2C9F00F0L, 0x285E1D47L,
+ 0x36194D42L, 0x32D850F5L, 0x3F9B762CL, 0x3B5A6B9BL,
+ 0x0315D626L, 0x07D4CB91L, 0x0A97ED48L, 0x0E56F0FFL,
+ 0x1011A0FAL, 0x14D0BD4DL, 0x19939B94L, 0x1D528623L,
+ 0xF12F560EL, 0xF5EE4BB9L, 0xF8AD6D60L, 0xFC6C70D7L,
+ 0xE22B20D2L, 0xE6EA3D65L, 0xEBA91BBCL, 0xEF68060BL,
+ 0xD727BBB6L, 0xD3E6A601L, 0xDEA580D8L, 0xDA649D6FL,
+ 0xC423CD6AL, 0xC0E2D0DDL, 0xCDA1F604L, 0xC960EBB3L,
+ 0xBD3E8D7EL, 0xB9FF90C9L, 0xB4BCB610L, 0xB07DABA7L,
+ 0xAE3AFBA2L, 0xAAFBE615L, 0xA7B8C0CCL, 0xA379DD7BL,
+ 0x9B3660C6L, 0x9FF77D71L, 0x92B45BA8L, 0x9675461FL,
+ 0x8832161AL, 0x8CF30BADL, 0x81B02D74L, 0x857130C3L,
+ 0x5D8A9099L, 0x594B8D2EL, 0x5408ABF7L, 0x50C9B640L,
+ 0x4E8EE645L, 0x4A4FFBF2L, 0x470CDD2BL, 0x43CDC09CL,
+ 0x7B827D21L, 0x7F436096L, 0x7200464FL, 0x76C15BF8L,
+ 0x68860BFDL, 0x6C47164AL, 0x61043093L, 0x65C52D24L,
+ 0x119B4BE9L, 0x155A565EL, 0x18197087L, 0x1CD86D30L,
+ 0x029F3D35L, 0x065E2082L, 0x0B1D065BL, 0x0FDC1BECL,
+ 0x3793A651L, 0x3352BBE6L, 0x3E119D3FL, 0x3AD08088L,
+ 0x2497D08DL, 0x2056CD3AL, 0x2D15EBE3L, 0x29D4F654L,
+ 0xC5A92679L, 0xC1683BCEL, 0xCC2B1D17L, 0xC8EA00A0L,
+ 0xD6AD50A5L, 0xD26C4D12L, 0xDF2F6BCBL, 0xDBEE767CL,
+ 0xE3A1CBC1L, 0xE760D676L, 0xEA23F0AFL, 0xEEE2ED18L,
+ 0xF0A5BD1DL, 0xF464A0AAL, 0xF9278673L, 0xFDE69BC4L,
+ 0x89B8FD09L, 0x8D79E0BEL, 0x803AC667L, 0x84FBDBD0L,
+ 0x9ABC8BD5L, 0x9E7D9662L, 0x933EB0BBL, 0x97FFAD0CL,
+ 0xAFB010B1L, 0xAB710D06L, 0xA6322BDFL, 0xA2F33668L,
+ 0xBCB4666DL, 0xB8757BDAL, 0xB5365D03L, 0xB1F740B4L
+};
+#endif
+
+static DRFLAC_INLINE drflac_uint32 drflac_crc32_byte(drflac_uint32 crc32, drflac_uint8 data)
+{
+#ifndef DR_FLAC_NO_CRC
+ return (crc32 << 8) ^ drflac__crc32_table[(drflac_uint8)((crc32 >> 24) & 0xFF) ^ data];
+#else
+ (void)data;
+ return crc32;
+#endif
+}
+
+#if 0
+static DRFLAC_INLINE drflac_uint32 drflac_crc32_uint32(drflac_uint32 crc32, drflac_uint32 data)
+{
+ crc32 = drflac_crc32_byte(crc32, (drflac_uint8)((data >> 24) & 0xFF));
+ crc32 = drflac_crc32_byte(crc32, (drflac_uint8)((data >> 16) & 0xFF));
+ crc32 = drflac_crc32_byte(crc32, (drflac_uint8)((data >> 8) & 0xFF));
+ crc32 = drflac_crc32_byte(crc32, (drflac_uint8)((data >> 0) & 0xFF));
+ return crc32;
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac_crc32_uint64(drflac_uint32 crc32, drflac_uint64 data)
+{
+ crc32 = drflac_crc32_uint32(crc32, (drflac_uint32)((data >> 32) & 0xFFFFFFFF));
+ crc32 = drflac_crc32_uint32(crc32, (drflac_uint32)((data >> 0) & 0xFFFFFFFF));
+ return crc32;
+}
+#endif
+
+static DRFLAC_INLINE drflac_uint32 drflac_crc32_buffer(drflac_uint32 crc32, drflac_uint8* pData, drflac_uint32 dataSize)
+{
+ /* This can be optimized. */
+ drflac_uint32 i;
+ for (i = 0; i < dataSize; ++i) {
+ crc32 = drflac_crc32_byte(crc32, pData[i]);
+ }
+ return crc32;
+}
+
+
+static DRFLAC_INLINE drflac_bool32 drflac_ogg__is_capture_pattern(drflac_uint8 pattern[4])
+{
+ return pattern[0] == 'O' && pattern[1] == 'g' && pattern[2] == 'g' && pattern[3] == 'S';
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac_ogg__get_page_header_size(drflac_ogg_page_header* pHeader)
+{
+ return 27 + pHeader->segmentCount;
+}
+
+static DRFLAC_INLINE drflac_uint32 drflac_ogg__get_page_body_size(drflac_ogg_page_header* pHeader)
+{
+ drflac_uint32 pageBodySize = 0;
+ int i;
+
+ for (i = 0; i < pHeader->segmentCount; ++i) {
+ pageBodySize += pHeader->segmentTable[i];
+ }
+
+ return pageBodySize;
+}
+
+static drflac_result drflac_ogg__read_page_header_after_capture_pattern(drflac_read_proc onRead, void* pUserData, drflac_ogg_page_header* pHeader, drflac_uint32* pBytesRead, drflac_uint32* pCRC32)
+{
+ drflac_uint8 data[23];
+ drflac_uint32 i;
+
+ DRFLAC_ASSERT(*pCRC32 == DRFLAC_OGG_CAPTURE_PATTERN_CRC32);
+
+ if (onRead(pUserData, data, 23) != 23) {
+ return DRFLAC_AT_END;
+ }
+ *pBytesRead += 23;
+
+ /*
+ It's not actually used, but set the capture pattern to 'OggS' for completeness. Not doing this will cause static analysers to complain about
+ us trying to access uninitialized data. We could alternatively just comment out this member of the drflac_ogg_page_header structure, but I
+ like to have it map to the structure of the underlying data.
+ */
+ pHeader->capturePattern[0] = 'O';
+ pHeader->capturePattern[1] = 'g';
+ pHeader->capturePattern[2] = 'g';
+ pHeader->capturePattern[3] = 'S';
+
+ pHeader->structureVersion = data[0];
+ pHeader->headerType = data[1];
+ DRFLAC_COPY_MEMORY(&pHeader->granulePosition, &data[ 2], 8);
+ DRFLAC_COPY_MEMORY(&pHeader->serialNumber, &data[10], 4);
+ DRFLAC_COPY_MEMORY(&pHeader->sequenceNumber, &data[14], 4);
+ DRFLAC_COPY_MEMORY(&pHeader->checksum, &data[18], 4);
+ pHeader->segmentCount = data[22];
+
+ /* Calculate the CRC. Note that for the calculation the checksum part of the page needs to be set to 0. */
+ data[18] = 0;
+ data[19] = 0;
+ data[20] = 0;
+ data[21] = 0;
+
+ for (i = 0; i < 23; ++i) {
+ *pCRC32 = drflac_crc32_byte(*pCRC32, data[i]);
+ }
+
+
+ if (onRead(pUserData, pHeader->segmentTable, pHeader->segmentCount) != pHeader->segmentCount) {
+ return DRFLAC_AT_END;
+ }
+ *pBytesRead += pHeader->segmentCount;
+
+ for (i = 0; i < pHeader->segmentCount; ++i) {
+ *pCRC32 = drflac_crc32_byte(*pCRC32, pHeader->segmentTable[i]);
+ }
+
+ return DRFLAC_SUCCESS;
+}
+
+static drflac_result drflac_ogg__read_page_header(drflac_read_proc onRead, void* pUserData, drflac_ogg_page_header* pHeader, drflac_uint32* pBytesRead, drflac_uint32* pCRC32)
+{
+ drflac_uint8 id[4];
+
+ *pBytesRead = 0;
+
+ if (onRead(pUserData, id, 4) != 4) {
+ return DRFLAC_AT_END;
+ }
+ *pBytesRead += 4;
+
+ /* We need to read byte-by-byte until we find the OggS capture pattern. */
+ for (;;) {
+ if (drflac_ogg__is_capture_pattern(id)) {
+ drflac_result result;
+
+ *pCRC32 = DRFLAC_OGG_CAPTURE_PATTERN_CRC32;
+
+ result = drflac_ogg__read_page_header_after_capture_pattern(onRead, pUserData, pHeader, pBytesRead, pCRC32);
+ if (result == DRFLAC_SUCCESS) {
+ return DRFLAC_SUCCESS;
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ continue;
+ } else {
+ return result;
+ }
+ }
+ } else {
+ /* The first 4 bytes did not equal the capture pattern. Read the next byte and try again. */
+ id[0] = id[1];
+ id[1] = id[2];
+ id[2] = id[3];
+ if (onRead(pUserData, &id[3], 1) != 1) {
+ return DRFLAC_AT_END;
+ }
+ *pBytesRead += 1;
+ }
+ }
+}
+
+
+/*
+The main part of the Ogg encapsulation is the conversion from the physical Ogg bitstream to the native FLAC bitstream. It works
+in three general stages: Ogg Physical Bitstream -> Ogg/FLAC Logical Bitstream -> FLAC Native Bitstream. dr_flac is designed
+in such a way that the core sections assume everything is delivered in native format. Therefore, for each encapsulation type
+dr_flac is supporting there needs to be a layer sitting on top of the onRead and onSeek callbacks that ensures the bits read from
+the physical Ogg bitstream are converted and delivered in native FLAC format.
+*/
+typedef struct
+{
+ drflac_read_proc onRead; /* The original onRead callback from drflac_open() and family. */
+ drflac_seek_proc onSeek; /* The original onSeek callback from drflac_open() and family. */
+ void* pUserData; /* The user data passed on onRead and onSeek. This is the user data that was passed on drflac_open() and family. */
+ drflac_uint64 currentBytePos; /* The position of the byte we are sitting on in the physical byte stream. Used for efficient seeking. */
+ drflac_uint64 firstBytePos; /* The position of the first byte in the physical bitstream. Points to the start of the "OggS" identifier of the FLAC bos page. */
+ drflac_uint32 serialNumber; /* The serial number of the FLAC audio pages. This is determined by the initial header page that was read during initialization. */
+ drflac_ogg_page_header bosPageHeader; /* Used for seeking. */
+ drflac_ogg_page_header currentPageHeader;
+ drflac_uint32 bytesRemainingInPage;
+ drflac_uint32 pageDataSize;
+ drflac_uint8 pageData[DRFLAC_OGG_MAX_PAGE_SIZE];
+} drflac_oggbs; /* oggbs = Ogg Bitstream */
+
+static size_t drflac_oggbs__read_physical(drflac_oggbs* oggbs, void* bufferOut, size_t bytesToRead)
+{
+ size_t bytesActuallyRead = oggbs->onRead(oggbs->pUserData, bufferOut, bytesToRead);
+ oggbs->currentBytePos += bytesActuallyRead;
+
+ return bytesActuallyRead;
+}
+
+static drflac_bool32 drflac_oggbs__seek_physical(drflac_oggbs* oggbs, drflac_uint64 offset, drflac_seek_origin origin)
+{
+ if (origin == drflac_seek_origin_start) {
+ if (offset <= 0x7FFFFFFF) {
+ if (!oggbs->onSeek(oggbs->pUserData, (int)offset, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->currentBytePos = offset;
+
+ return DRFLAC_TRUE;
+ } else {
+ if (!oggbs->onSeek(oggbs->pUserData, 0x7FFFFFFF, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->currentBytePos = offset;
+
+ return drflac_oggbs__seek_physical(oggbs, offset - 0x7FFFFFFF, drflac_seek_origin_current);
+ }
+ } else {
+ while (offset > 0x7FFFFFFF) {
+ if (!oggbs->onSeek(oggbs->pUserData, 0x7FFFFFFF, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->currentBytePos += 0x7FFFFFFF;
+ offset -= 0x7FFFFFFF;
+ }
+
+ if (!oggbs->onSeek(oggbs->pUserData, (int)offset, drflac_seek_origin_current)) { /* <-- Safe cast thanks to the loop above. */
+ return DRFLAC_FALSE;
+ }
+ oggbs->currentBytePos += offset;
+
+ return DRFLAC_TRUE;
+ }
+}
+
+static drflac_bool32 drflac_oggbs__goto_next_page(drflac_oggbs* oggbs, drflac_ogg_crc_mismatch_recovery recoveryMethod)
+{
+ drflac_ogg_page_header header;
+ for (;;) {
+ drflac_uint32 crc32 = 0;
+ drflac_uint32 bytesRead;
+ drflac_uint32 pageBodySize;
+#ifndef DR_FLAC_NO_CRC
+ drflac_uint32 actualCRC32;
+#endif
+
+ if (drflac_ogg__read_page_header(oggbs->onRead, oggbs->pUserData, &header, &bytesRead, &crc32) != DRFLAC_SUCCESS) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->currentBytePos += bytesRead;
+
+ pageBodySize = drflac_ogg__get_page_body_size(&header);
+ if (pageBodySize > DRFLAC_OGG_MAX_PAGE_SIZE) {
+ continue; /* Invalid page size. Assume it's corrupted and just move to the next page. */
+ }
+
+ if (header.serialNumber != oggbs->serialNumber) {
+ /* It's not a FLAC page. Skip it. */
+ if (pageBodySize > 0 && !drflac_oggbs__seek_physical(oggbs, pageBodySize, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ continue;
+ }
+
+
+ /* We need to read the entire page and then do a CRC check on it. If there's a CRC mismatch we need to skip this page. */
+ if (drflac_oggbs__read_physical(oggbs, oggbs->pageData, pageBodySize) != pageBodySize) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->pageDataSize = pageBodySize;
+
+#ifndef DR_FLAC_NO_CRC
+ actualCRC32 = drflac_crc32_buffer(crc32, oggbs->pageData, oggbs->pageDataSize);
+ if (actualCRC32 != header.checksum) {
+ if (recoveryMethod == drflac_ogg_recover_on_crc_mismatch) {
+ continue; /* CRC mismatch. Skip this page. */
+ } else {
+ /*
+ Even though we are failing on a CRC mismatch, we still want our stream to be in a good state. Therefore we
+ go to the next valid page to ensure we're in a good state, but return false to let the caller know that the
+ seek did not fully complete.
+ */
+ drflac_oggbs__goto_next_page(oggbs, drflac_ogg_recover_on_crc_mismatch);
+ return DRFLAC_FALSE;
+ }
+ }
+#else
+ (void)recoveryMethod; /* <-- Silence a warning. */
+#endif
+
+ oggbs->currentPageHeader = header;
+ oggbs->bytesRemainingInPage = pageBodySize;
+ return DRFLAC_TRUE;
+ }
+}
+
+/* Function below is unused at the moment, but I might be re-adding it later. */
+#if 0
+static drflac_uint8 drflac_oggbs__get_current_segment_index(drflac_oggbs* oggbs, drflac_uint8* pBytesRemainingInSeg)
+{
+ drflac_uint32 bytesConsumedInPage = drflac_ogg__get_page_body_size(&oggbs->currentPageHeader) - oggbs->bytesRemainingInPage;
+ drflac_uint8 iSeg = 0;
+ drflac_uint32 iByte = 0;
+ while (iByte < bytesConsumedInPage) {
+ drflac_uint8 segmentSize = oggbs->currentPageHeader.segmentTable[iSeg];
+ if (iByte + segmentSize > bytesConsumedInPage) {
+ break;
+ } else {
+ iSeg += 1;
+ iByte += segmentSize;
+ }
+ }
+
+ *pBytesRemainingInSeg = oggbs->currentPageHeader.segmentTable[iSeg] - (drflac_uint8)(bytesConsumedInPage - iByte);
+ return iSeg;
+}
+
+static drflac_bool32 drflac_oggbs__seek_to_next_packet(drflac_oggbs* oggbs)
+{
+ /* The current packet ends when we get to the segment with a lacing value of < 255 which is not at the end of a page. */
+ for (;;) {
+ drflac_bool32 atEndOfPage = DRFLAC_FALSE;
+
+ drflac_uint8 bytesRemainingInSeg;
+ drflac_uint8 iFirstSeg = drflac_oggbs__get_current_segment_index(oggbs, &bytesRemainingInSeg);
+
+ drflac_uint32 bytesToEndOfPacketOrPage = bytesRemainingInSeg;
+ for (drflac_uint8 iSeg = iFirstSeg; iSeg < oggbs->currentPageHeader.segmentCount; ++iSeg) {
+ drflac_uint8 segmentSize = oggbs->currentPageHeader.segmentTable[iSeg];
+ if (segmentSize < 255) {
+ if (iSeg == oggbs->currentPageHeader.segmentCount-1) {
+ atEndOfPage = DRFLAC_TRUE;
+ }
+
+ break;
+ }
+
+ bytesToEndOfPacketOrPage += segmentSize;
+ }
+
+ /*
+ At this point we will have found either the packet or the end of the page. If were at the end of the page we'll
+ want to load the next page and keep searching for the end of the packet.
+ */
+ drflac_oggbs__seek_physical(oggbs, bytesToEndOfPacketOrPage, drflac_seek_origin_current);
+ oggbs->bytesRemainingInPage -= bytesToEndOfPacketOrPage;
+
+ if (atEndOfPage) {
+ /*
+ We're potentially at the next packet, but we need to check the next page first to be sure because the packet may
+ straddle pages.
+ */
+ if (!drflac_oggbs__goto_next_page(oggbs)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* If it's a fresh packet it most likely means we're at the next packet. */
+ if ((oggbs->currentPageHeader.headerType & 0x01) == 0) {
+ return DRFLAC_TRUE;
+ }
+ } else {
+ /* We're at the next packet. */
+ return DRFLAC_TRUE;
+ }
+ }
+}
+
+static drflac_bool32 drflac_oggbs__seek_to_next_frame(drflac_oggbs* oggbs)
+{
+ /* The bitstream should be sitting on the first byte just after the header of the frame. */
+
+ /* What we're actually doing here is seeking to the start of the next packet. */
+ return drflac_oggbs__seek_to_next_packet(oggbs);
+}
+#endif
+
+static size_t drflac__on_read_ogg(void* pUserData, void* bufferOut, size_t bytesToRead)
+{
+ drflac_oggbs* oggbs = (drflac_oggbs*)pUserData;
+ drflac_uint8* pRunningBufferOut = (drflac_uint8*)bufferOut;
+ size_t bytesRead = 0;
+
+ DRFLAC_ASSERT(oggbs != NULL);
+ DRFLAC_ASSERT(pRunningBufferOut != NULL);
+
+ /* Reading is done page-by-page. If we've run out of bytes in the page we need to move to the next one. */
+ while (bytesRead < bytesToRead) {
+ size_t bytesRemainingToRead = bytesToRead - bytesRead;
+
+ if (oggbs->bytesRemainingInPage >= bytesRemainingToRead) {
+ DRFLAC_COPY_MEMORY(pRunningBufferOut, oggbs->pageData + (oggbs->pageDataSize - oggbs->bytesRemainingInPage), bytesRemainingToRead);
+ bytesRead += bytesRemainingToRead;
+ oggbs->bytesRemainingInPage -= (drflac_uint32)bytesRemainingToRead;
+ break;
+ }
+
+ /* If we get here it means some of the requested data is contained in the next pages. */
+ if (oggbs->bytesRemainingInPage > 0) {
+ DRFLAC_COPY_MEMORY(pRunningBufferOut, oggbs->pageData + (oggbs->pageDataSize - oggbs->bytesRemainingInPage), oggbs->bytesRemainingInPage);
+ bytesRead += oggbs->bytesRemainingInPage;
+ pRunningBufferOut += oggbs->bytesRemainingInPage;
+ oggbs->bytesRemainingInPage = 0;
+ }
+
+ DRFLAC_ASSERT(bytesRemainingToRead > 0);
+ if (!drflac_oggbs__goto_next_page(oggbs, drflac_ogg_recover_on_crc_mismatch)) {
+ break; /* Failed to go to the next page. Might have simply hit the end of the stream. */
+ }
+ }
+
+ return bytesRead;
+}
+
+static drflac_bool32 drflac__on_seek_ogg(void* pUserData, int offset, drflac_seek_origin origin)
+{
+ drflac_oggbs* oggbs = (drflac_oggbs*)pUserData;
+ int bytesSeeked = 0;
+
+ DRFLAC_ASSERT(oggbs != NULL);
+ DRFLAC_ASSERT(offset >= 0); /* <-- Never seek backwards. */
+
+ /* Seeking is always forward which makes things a lot simpler. */
+ if (origin == drflac_seek_origin_start) {
+ if (!drflac_oggbs__seek_physical(oggbs, (int)oggbs->firstBytePos, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (!drflac_oggbs__goto_next_page(oggbs, drflac_ogg_fail_on_crc_mismatch)) {
+ return DRFLAC_FALSE;
+ }
+
+ return drflac__on_seek_ogg(pUserData, offset, drflac_seek_origin_current);
+ }
+
+ DRFLAC_ASSERT(origin == drflac_seek_origin_current);
+
+ while (bytesSeeked < offset) {
+ int bytesRemainingToSeek = offset - bytesSeeked;
+ DRFLAC_ASSERT(bytesRemainingToSeek >= 0);
+
+ if (oggbs->bytesRemainingInPage >= (size_t)bytesRemainingToSeek) {
+ bytesSeeked += bytesRemainingToSeek;
+ (void)bytesSeeked; /* <-- Silence a dead store warning emitted by Clang Static Analyzer. */
+ oggbs->bytesRemainingInPage -= bytesRemainingToSeek;
+ break;
+ }
+
+ /* If we get here it means some of the requested data is contained in the next pages. */
+ if (oggbs->bytesRemainingInPage > 0) {
+ bytesSeeked += (int)oggbs->bytesRemainingInPage;
+ oggbs->bytesRemainingInPage = 0;
+ }
+
+ DRFLAC_ASSERT(bytesRemainingToSeek > 0);
+ if (!drflac_oggbs__goto_next_page(oggbs, drflac_ogg_fail_on_crc_mismatch)) {
+ /* Failed to go to the next page. We either hit the end of the stream or had a CRC mismatch. */
+ return DRFLAC_FALSE;
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+
+
+static drflac_bool32 drflac_ogg__seek_to_pcm_frame(drflac* pFlac, drflac_uint64 pcmFrameIndex)
+{
+ drflac_oggbs* oggbs = (drflac_oggbs*)pFlac->_oggbs;
+ drflac_uint64 originalBytePos;
+ drflac_uint64 runningGranulePosition;
+ drflac_uint64 runningFrameBytePos;
+ drflac_uint64 runningPCMFrameCount;
+
+ DRFLAC_ASSERT(oggbs != NULL);
+
+ originalBytePos = oggbs->currentBytePos; /* For recovery. Points to the OggS identifier. */
+
+ /* First seek to the first frame. */
+ if (!drflac__seek_to_byte(&pFlac->bs, pFlac->firstFLACFramePosInBytes)) {
+ return DRFLAC_FALSE;
+ }
+ oggbs->bytesRemainingInPage = 0;
+
+ runningGranulePosition = 0;
+ for (;;) {
+ if (!drflac_oggbs__goto_next_page(oggbs, drflac_ogg_recover_on_crc_mismatch)) {
+ drflac_oggbs__seek_physical(oggbs, originalBytePos, drflac_seek_origin_start);
+ return DRFLAC_FALSE; /* Never did find that sample... */
+ }
+
+ runningFrameBytePos = oggbs->currentBytePos - drflac_ogg__get_page_header_size(&oggbs->currentPageHeader) - oggbs->pageDataSize;
+ if (oggbs->currentPageHeader.granulePosition >= pcmFrameIndex) {
+ break; /* The sample is somewhere in the previous page. */
+ }
+
+ /*
+ At this point we know the sample is not in the previous page. It could possibly be in this page. For simplicity we
+ disregard any pages that do not begin a fresh packet.
+ */
+ if ((oggbs->currentPageHeader.headerType & 0x01) == 0) { /* <-- Is it a fresh page? */
+ if (oggbs->currentPageHeader.segmentTable[0] >= 2) {
+ drflac_uint8 firstBytesInPage[2];
+ firstBytesInPage[0] = oggbs->pageData[0];
+ firstBytesInPage[1] = oggbs->pageData[1];
+
+ if ((firstBytesInPage[0] == 0xFF) && (firstBytesInPage[1] & 0xFC) == 0xF8) { /* <-- Does the page begin with a frame's sync code? */
+ runningGranulePosition = oggbs->currentPageHeader.granulePosition;
+ }
+
+ continue;
+ }
+ }
+ }
+
+ /*
+ We found the page that that is closest to the sample, so now we need to find it. The first thing to do is seek to the
+ start of that page. In the loop above we checked that it was a fresh page which means this page is also the start of
+ a new frame. This property means that after we've seeked to the page we can immediately start looping over frames until
+ we find the one containing the target sample.
+ */
+ if (!drflac_oggbs__seek_physical(oggbs, runningFrameBytePos, drflac_seek_origin_start)) {
+ return DRFLAC_FALSE;
+ }
+ if (!drflac_oggbs__goto_next_page(oggbs, drflac_ogg_recover_on_crc_mismatch)) {
+ return DRFLAC_FALSE;
+ }
+
+ /*
+ At this point we'll be sitting on the first byte of the frame header of the first frame in the page. We just keep
+ looping over these frames until we find the one containing the sample we're after.
+ */
+ runningPCMFrameCount = runningGranulePosition;
+ for (;;) {
+ /*
+ There are two ways to find the sample and seek past irrelevant frames:
+ 1) Use the native FLAC decoder.
+ 2) Use Ogg's framing system.
+
+ Both of these options have their own pros and cons. Using the native FLAC decoder is slower because it needs to
+ do a full decode of the frame. Using Ogg's framing system is faster, but more complicated and involves some code
+ duplication for the decoding of frame headers.
+
+ Another thing to consider is that using the Ogg framing system will perform direct seeking of the physical Ogg
+ bitstream. This is important to consider because it means we cannot read data from the drflac_bs object using the
+ standard drflac__*() APIs because that will read in extra data for its own internal caching which in turn breaks
+ the positioning of the read pointer of the physical Ogg bitstream. Therefore, anything that would normally be read
+ using the native FLAC decoding APIs, such as drflac__read_next_flac_frame_header(), need to be re-implemented so as to
+ avoid the use of the drflac_bs object.
+
+ Considering these issues, I have decided to use the slower native FLAC decoding method for the following reasons:
+ 1) Seeking is already partially accelerated using Ogg's paging system in the code block above.
+ 2) Seeking in an Ogg encapsulated FLAC stream is probably quite uncommon.
+ 3) Simplicity.
+ */
+ drflac_uint64 firstPCMFrameInFLACFrame = 0;
+ drflac_uint64 lastPCMFrameInFLACFrame = 0;
+ drflac_uint64 pcmFrameCountInThisFrame;
+
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ return DRFLAC_FALSE;
+ }
+
+ drflac__get_pcm_frame_range_of_current_flac_frame(pFlac, &firstPCMFrameInFLACFrame, &lastPCMFrameInFLACFrame);
+
+ pcmFrameCountInThisFrame = (lastPCMFrameInFLACFrame - firstPCMFrameInFLACFrame) + 1;
+
+ /* If we are seeking to the end of the file and we've just hit it, we're done. */
+ if (pcmFrameIndex == pFlac->totalPCMFrameCount && (runningPCMFrameCount + pcmFrameCountInThisFrame) == pFlac->totalPCMFrameCount) {
+ drflac_result result = drflac__decode_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ pFlac->currentPCMFrame = pcmFrameIndex;
+ pFlac->currentFLACFrame.pcmFramesRemaining = 0;
+ return DRFLAC_TRUE;
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ if (pcmFrameIndex < (runningPCMFrameCount + pcmFrameCountInThisFrame)) {
+ /*
+ The sample should be in this FLAC frame. We need to fully decode it, however if it's an invalid frame (a CRC mismatch), we need to pretend
+ it never existed and keep iterating.
+ */
+ drflac_result result = drflac__decode_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ /* The frame is valid. We just need to skip over some samples to ensure it's sample-exact. */
+ drflac_uint64 pcmFramesToDecode = (size_t)(pcmFrameIndex - runningPCMFrameCount); /* <-- Safe cast because the maximum number of samples in a frame is 65535. */
+ if (pcmFramesToDecode == 0) {
+ return DRFLAC_TRUE;
+ }
+
+ pFlac->currentPCMFrame = runningPCMFrameCount;
+
+ return drflac__seek_forward_by_pcm_frames(pFlac, pcmFramesToDecode) == pcmFramesToDecode; /* <-- If this fails, something bad has happened (it should never fail). */
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ continue; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /*
+ It's not in this frame. We need to seek past the frame, but check if there was a CRC mismatch. If so, we pretend this
+ frame never existed and leave the running sample count untouched.
+ */
+ drflac_result result = drflac__seek_to_next_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ runningPCMFrameCount += pcmFrameCountInThisFrame;
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ continue; /* CRC mismatch. Pretend this frame never existed. */
+ } else {
+ return DRFLAC_FALSE;
+ }
+ }
+ }
+ }
+}
+
+
+
+static drflac_bool32 drflac__init_private__ogg(drflac_init_info* pInit, drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, void* pUserData, void* pUserDataMD, drflac_bool32 relaxed)
+{
+ drflac_ogg_page_header header;
+ drflac_uint32 crc32 = DRFLAC_OGG_CAPTURE_PATTERN_CRC32;
+ drflac_uint32 bytesRead = 0;
+
+ /* Pre Condition: The bit stream should be sitting just past the 4-byte OggS capture pattern. */
+ (void)relaxed;
+
+ pInit->container = drflac_container_ogg;
+ pInit->oggFirstBytePos = 0;
+
+ /*
+ We'll get here if the first 4 bytes of the stream were the OggS capture pattern, however it doesn't necessarily mean the
+ stream includes FLAC encoded audio. To check for this we need to scan the beginning-of-stream page markers and check if
+ any match the FLAC specification. Important to keep in mind that the stream may be multiplexed.
+ */
+ if (drflac_ogg__read_page_header_after_capture_pattern(onRead, pUserData, &header, &bytesRead, &crc32) != DRFLAC_SUCCESS) {
+ return DRFLAC_FALSE;
+ }
+ pInit->runningFilePos += bytesRead;
+
+ for (;;) {
+ int pageBodySize;
+
+ /* Break if we're past the beginning of stream page. */
+ if ((header.headerType & 0x02) == 0) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Check if it's a FLAC header. */
+ pageBodySize = drflac_ogg__get_page_body_size(&header);
+ if (pageBodySize == 51) { /* 51 = the lacing value of the FLAC header packet. */
+ /* It could be a FLAC page... */
+ drflac_uint32 bytesRemainingInPage = pageBodySize;
+ drflac_uint8 packetType;
+
+ if (onRead(pUserData, &packetType, 1) != 1) {
+ return DRFLAC_FALSE;
+ }
+
+ bytesRemainingInPage -= 1;
+ if (packetType == 0x7F) {
+ /* Increasingly more likely to be a FLAC page... */
+ drflac_uint8 sig[4];
+ if (onRead(pUserData, sig, 4) != 4) {
+ return DRFLAC_FALSE;
+ }
+
+ bytesRemainingInPage -= 4;
+ if (sig[0] == 'F' && sig[1] == 'L' && sig[2] == 'A' && sig[3] == 'C') {
+ /* Almost certainly a FLAC page... */
+ drflac_uint8 mappingVersion[2];
+ if (onRead(pUserData, mappingVersion, 2) != 2) {
+ return DRFLAC_FALSE;
+ }
+
+ if (mappingVersion[0] != 1) {
+ return DRFLAC_FALSE; /* Only supporting version 1.x of the Ogg mapping. */
+ }
+
+ /*
+ The next 2 bytes are the non-audio packets, not including this one. We don't care about this because we're going to
+ be handling it in a generic way based on the serial number and packet types.
+ */
+ if (!onSeek(pUserData, 2, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Expecting the native FLAC signature "fLaC". */
+ if (onRead(pUserData, sig, 4) != 4) {
+ return DRFLAC_FALSE;
+ }
+
+ if (sig[0] == 'f' && sig[1] == 'L' && sig[2] == 'a' && sig[3] == 'C') {
+ /* The remaining data in the page should be the STREAMINFO block. */
+ drflac_streaminfo streaminfo;
+ drflac_uint8 isLastBlock;
+ drflac_uint8 blockType;
+ drflac_uint32 blockSize;
+ if (!drflac__read_and_decode_block_header(onRead, pUserData, &isLastBlock, &blockType, &blockSize)) {
+ return DRFLAC_FALSE;
+ }
+
+ if (blockType != DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO || blockSize != 34) {
+ return DRFLAC_FALSE; /* Invalid block type. First block must be the STREAMINFO block. */
+ }
+
+ if (drflac__read_streaminfo(onRead, pUserData, &streaminfo)) {
+ /* Success! */
+ pInit->hasStreamInfoBlock = DRFLAC_TRUE;
+ pInit->sampleRate = streaminfo.sampleRate;
+ pInit->channels = streaminfo.channels;
+ pInit->bitsPerSample = streaminfo.bitsPerSample;
+ pInit->totalPCMFrameCount = streaminfo.totalPCMFrameCount;
+ pInit->maxBlockSizeInPCMFrames = streaminfo.maxBlockSizeInPCMFrames;
+ pInit->hasMetadataBlocks = !isLastBlock;
+
+ if (onMeta) {
+ drflac_metadata metadata;
+ metadata.type = DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO;
+ metadata.pRawData = NULL;
+ metadata.rawDataSize = 0;
+ metadata.data.streaminfo = streaminfo;
+ onMeta(pUserDataMD, &metadata);
+ }
+
+ pInit->runningFilePos += pageBodySize;
+ pInit->oggFirstBytePos = pInit->runningFilePos - 79; /* Subtracting 79 will place us right on top of the "OggS" identifier of the FLAC bos page. */
+ pInit->oggSerial = header.serialNumber;
+ pInit->oggBosHeader = header;
+ break;
+ } else {
+ /* Failed to read STREAMINFO block. Aww, so close... */
+ return DRFLAC_FALSE;
+ }
+ } else {
+ /* Invalid file. */
+ return DRFLAC_FALSE;
+ }
+ } else {
+ /* Not a FLAC header. Skip it. */
+ if (!onSeek(pUserData, bytesRemainingInPage, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ /* Not a FLAC header. Seek past the entire page and move on to the next. */
+ if (!onSeek(pUserData, bytesRemainingInPage, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ }
+ } else {
+ if (!onSeek(pUserData, pageBodySize, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE;
+ }
+ }
+
+ pInit->runningFilePos += pageBodySize;
+
+
+ /* Read the header of the next page. */
+ if (drflac_ogg__read_page_header(onRead, pUserData, &header, &bytesRead, &crc32) != DRFLAC_SUCCESS) {
+ return DRFLAC_FALSE;
+ }
+ pInit->runningFilePos += bytesRead;
+ }
+
+ /*
+ If we get here it means we found a FLAC audio stream. We should be sitting on the first byte of the header of the next page. The next
+ packets in the FLAC logical stream contain the metadata. The only thing left to do in the initialization phase for Ogg is to create the
+ Ogg bistream object.
+ */
+ pInit->hasMetadataBlocks = DRFLAC_TRUE; /* <-- Always have at least VORBIS_COMMENT metadata block. */
+ return DRFLAC_TRUE;
+}
+#endif
+
+static drflac_bool32 drflac__init_private(drflac_init_info* pInit, drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, drflac_container container, void* pUserData, void* pUserDataMD)
+{
+ drflac_bool32 relaxed;
+ drflac_uint8 id[4];
+
+ if (pInit == NULL || onRead == NULL || onSeek == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ DRFLAC_ZERO_MEMORY(pInit, sizeof(*pInit));
+ pInit->onRead = onRead;
+ pInit->onSeek = onSeek;
+ pInit->onMeta = onMeta;
+ pInit->container = container;
+ pInit->pUserData = pUserData;
+ pInit->pUserDataMD = pUserDataMD;
+
+ pInit->bs.onRead = onRead;
+ pInit->bs.onSeek = onSeek;
+ pInit->bs.pUserData = pUserData;
+ drflac__reset_cache(&pInit->bs);
+
+
+ /* If the container is explicitly defined then we can try opening in relaxed mode. */
+ relaxed = container != drflac_container_unknown;
+
+ /* Skip over any ID3 tags. */
+ for (;;) {
+ if (onRead(pUserData, id, 4) != 4) {
+ return DRFLAC_FALSE; /* Ran out of data. */
+ }
+ pInit->runningFilePos += 4;
+
+ if (id[0] == 'I' && id[1] == 'D' && id[2] == '3') {
+ drflac_uint8 header[6];
+ drflac_uint8 flags;
+ drflac_uint32 headerSize;
+
+ if (onRead(pUserData, header, 6) != 6) {
+ return DRFLAC_FALSE; /* Ran out of data. */
+ }
+ pInit->runningFilePos += 6;
+
+ flags = header[1];
+
+ DRFLAC_COPY_MEMORY(&headerSize, header+2, 4);
+ headerSize = drflac__unsynchsafe_32(drflac__be2host_32(headerSize));
+ if (flags & 0x10) {
+ headerSize += 10;
+ }
+
+ if (!onSeek(pUserData, headerSize, drflac_seek_origin_current)) {
+ return DRFLAC_FALSE; /* Failed to seek past the tag. */
+ }
+ pInit->runningFilePos += headerSize;
+ } else {
+ break;
+ }
+ }
+
+ if (id[0] == 'f' && id[1] == 'L' && id[2] == 'a' && id[3] == 'C') {
+ return drflac__init_private__native(pInit, onRead, onSeek, onMeta, pUserData, pUserDataMD, relaxed);
+ }
+#ifndef DR_FLAC_NO_OGG
+ if (id[0] == 'O' && id[1] == 'g' && id[2] == 'g' && id[3] == 'S') {
+ return drflac__init_private__ogg(pInit, onRead, onSeek, onMeta, pUserData, pUserDataMD, relaxed);
+ }
+#endif
+
+ /* If we get here it means we likely don't have a header. Try opening in relaxed mode, if applicable. */
+ if (relaxed) {
+ if (container == drflac_container_native) {
+ return drflac__init_private__native(pInit, onRead, onSeek, onMeta, pUserData, pUserDataMD, relaxed);
+ }
+#ifndef DR_FLAC_NO_OGG
+ if (container == drflac_container_ogg) {
+ return drflac__init_private__ogg(pInit, onRead, onSeek, onMeta, pUserData, pUserDataMD, relaxed);
+ }
+#endif
+ }
+
+ /* Unsupported container. */
+ return DRFLAC_FALSE;
+}
+
+static void drflac__init_from_info(drflac* pFlac, const drflac_init_info* pInit)
+{
+ DRFLAC_ASSERT(pFlac != NULL);
+ DRFLAC_ASSERT(pInit != NULL);
+
+ DRFLAC_ZERO_MEMORY(pFlac, sizeof(*pFlac));
+ pFlac->bs = pInit->bs;
+ pFlac->onMeta = pInit->onMeta;
+ pFlac->pUserDataMD = pInit->pUserDataMD;
+ pFlac->maxBlockSizeInPCMFrames = pInit->maxBlockSizeInPCMFrames;
+ pFlac->sampleRate = pInit->sampleRate;
+ pFlac->channels = (drflac_uint8)pInit->channels;
+ pFlac->bitsPerSample = (drflac_uint8)pInit->bitsPerSample;
+ pFlac->totalPCMFrameCount = pInit->totalPCMFrameCount;
+ pFlac->container = pInit->container;
+}
+
+
+static drflac* drflac_open_with_metadata_private(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, drflac_container container, void* pUserData, void* pUserDataMD, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac_init_info init;
+ drflac_uint32 allocationSize;
+ drflac_uint32 wholeSIMDVectorCountPerChannel;
+ drflac_uint32 decodedSamplesAllocationSize;
+#ifndef DR_FLAC_NO_OGG
+ drflac_oggbs oggbs;
+#endif
+ drflac_uint64 firstFramePos;
+ drflac_uint64 seektablePos;
+ drflac_uint32 seektableSize;
+ drflac_allocation_callbacks allocationCallbacks;
+ drflac* pFlac;
+
+ /* CPU support first. */
+ drflac__init_cpu_caps();
+
+ if (!drflac__init_private(&init, onRead, onSeek, onMeta, container, pUserData, pUserDataMD)) {
+ return NULL;
+ }
+
+ if (pAllocationCallbacks != NULL) {
+ allocationCallbacks = *pAllocationCallbacks;
+ if (allocationCallbacks.onFree == NULL || (allocationCallbacks.onMalloc == NULL && allocationCallbacks.onRealloc == NULL)) {
+ return NULL; /* Invalid allocation callbacks. */
+ }
+ } else {
+ allocationCallbacks.pUserData = NULL;
+ allocationCallbacks.onMalloc = drflac__malloc_default;
+ allocationCallbacks.onRealloc = drflac__realloc_default;
+ allocationCallbacks.onFree = drflac__free_default;
+ }
+
+
+ /*
+ The size of the allocation for the drflac object needs to be large enough to fit the following:
+ 1) The main members of the drflac structure
+ 2) A block of memory large enough to store the decoded samples of the largest frame in the stream
+ 3) If the container is Ogg, a drflac_oggbs object
+
+ The complicated part of the allocation is making sure there's enough room the decoded samples, taking into consideration
+ the different SIMD instruction sets.
+ */
+ allocationSize = sizeof(drflac);
+
+ /*
+ The allocation size for decoded frames depends on the number of 32-bit integers that fit inside the largest SIMD vector
+ we are supporting.
+ */
+ if ((init.maxBlockSizeInPCMFrames % (DRFLAC_MAX_SIMD_VECTOR_SIZE / sizeof(drflac_int32))) == 0) {
+ wholeSIMDVectorCountPerChannel = (init.maxBlockSizeInPCMFrames / (DRFLAC_MAX_SIMD_VECTOR_SIZE / sizeof(drflac_int32)));
+ } else {
+ wholeSIMDVectorCountPerChannel = (init.maxBlockSizeInPCMFrames / (DRFLAC_MAX_SIMD_VECTOR_SIZE / sizeof(drflac_int32))) + 1;
+ }
+
+ decodedSamplesAllocationSize = wholeSIMDVectorCountPerChannel * DRFLAC_MAX_SIMD_VECTOR_SIZE * init.channels;
+
+ allocationSize += decodedSamplesAllocationSize;
+ allocationSize += DRFLAC_MAX_SIMD_VECTOR_SIZE; /* Allocate extra bytes to ensure we have enough for alignment. */
+
+#ifndef DR_FLAC_NO_OGG
+ /* There's additional data required for Ogg streams. */
+ if (init.container == drflac_container_ogg) {
+ allocationSize += sizeof(drflac_oggbs);
+ }
+
+ DRFLAC_ZERO_MEMORY(&oggbs, sizeof(oggbs));
+ if (init.container == drflac_container_ogg) {
+ oggbs.onRead = onRead;
+ oggbs.onSeek = onSeek;
+ oggbs.pUserData = pUserData;
+ oggbs.currentBytePos = init.oggFirstBytePos;
+ oggbs.firstBytePos = init.oggFirstBytePos;
+ oggbs.serialNumber = init.oggSerial;
+ oggbs.bosPageHeader = init.oggBosHeader;
+ oggbs.bytesRemainingInPage = 0;
+ }
+#endif
+
+ /*
+ This part is a bit awkward. We need to load the seektable so that it can be referenced in-memory, but I want the drflac object to
+ consist of only a single heap allocation. To this, the size of the seek table needs to be known, which we determine when reading
+ and decoding the metadata.
+ */
+ firstFramePos = 42; /* <-- We know we are at byte 42 at this point. */
+ seektablePos = 0;
+ seektableSize = 0;
+ if (init.hasMetadataBlocks) {
+ drflac_read_proc onReadOverride = onRead;
+ drflac_seek_proc onSeekOverride = onSeek;
+ void* pUserDataOverride = pUserData;
+
+#ifndef DR_FLAC_NO_OGG
+ if (init.container == drflac_container_ogg) {
+ onReadOverride = drflac__on_read_ogg;
+ onSeekOverride = drflac__on_seek_ogg;
+ pUserDataOverride = (void*)&oggbs;
+ }
+#endif
+
+ if (!drflac__read_and_decode_metadata(onReadOverride, onSeekOverride, onMeta, pUserDataOverride, pUserDataMD, &firstFramePos, &seektablePos, &seektableSize, &allocationCallbacks)) {
+ return NULL;
+ }
+
+ allocationSize += seektableSize;
+ }
+
+
+ pFlac = (drflac*)drflac__malloc_from_callbacks(allocationSize, &allocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ drflac__init_from_info(pFlac, &init);
+ pFlac->allocationCallbacks = allocationCallbacks;
+ pFlac->pDecodedSamples = (drflac_int32*)drflac_align((size_t)pFlac->pExtraData, DRFLAC_MAX_SIMD_VECTOR_SIZE);
+
+#ifndef DR_FLAC_NO_OGG
+ if (init.container == drflac_container_ogg) {
+ drflac_oggbs* pInternalOggbs = (drflac_oggbs*)((drflac_uint8*)pFlac->pDecodedSamples + decodedSamplesAllocationSize + seektableSize);
+ *pInternalOggbs = oggbs;
+
+ /* The Ogg bistream needs to be layered on top of the original bitstream. */
+ pFlac->bs.onRead = drflac__on_read_ogg;
+ pFlac->bs.onSeek = drflac__on_seek_ogg;
+ pFlac->bs.pUserData = (void*)pInternalOggbs;
+ pFlac->_oggbs = (void*)pInternalOggbs;
+ }
+#endif
+
+ pFlac->firstFLACFramePosInBytes = firstFramePos;
+
+ /* NOTE: Seektables are not currently compatible with Ogg encapsulation (Ogg has its own accelerated seeking system). I may change this later, so I'm leaving this here for now. */
+#ifndef DR_FLAC_NO_OGG
+ if (init.container == drflac_container_ogg)
+ {
+ pFlac->pSeekpoints = NULL;
+ pFlac->seekpointCount = 0;
+ }
+ else
+#endif
+ {
+ /* If we have a seektable we need to load it now, making sure we move back to where we were previously. */
+ if (seektablePos != 0) {
+ pFlac->seekpointCount = seektableSize / sizeof(*pFlac->pSeekpoints);
+ pFlac->pSeekpoints = (drflac_seekpoint*)((drflac_uint8*)pFlac->pDecodedSamples + decodedSamplesAllocationSize);
+
+ DRFLAC_ASSERT(pFlac->bs.onSeek != NULL);
+ DRFLAC_ASSERT(pFlac->bs.onRead != NULL);
+
+ /* Seek to the seektable, then just read directly into our seektable buffer. */
+ if (pFlac->bs.onSeek(pFlac->bs.pUserData, (int)seektablePos, drflac_seek_origin_start)) {
+ if (pFlac->bs.onRead(pFlac->bs.pUserData, pFlac->pSeekpoints, seektableSize) == seektableSize) {
+ /* Endian swap. */
+ drflac_uint32 iSeekpoint;
+ for (iSeekpoint = 0; iSeekpoint < pFlac->seekpointCount; ++iSeekpoint) {
+ pFlac->pSeekpoints[iSeekpoint].firstPCMFrame = drflac__be2host_64(pFlac->pSeekpoints[iSeekpoint].firstPCMFrame);
+ pFlac->pSeekpoints[iSeekpoint].flacFrameOffset = drflac__be2host_64(pFlac->pSeekpoints[iSeekpoint].flacFrameOffset);
+ pFlac->pSeekpoints[iSeekpoint].pcmFrameCount = drflac__be2host_16(pFlac->pSeekpoints[iSeekpoint].pcmFrameCount);
+ }
+ } else {
+ /* Failed to read the seektable. Pretend we don't have one. */
+ pFlac->pSeekpoints = NULL;
+ pFlac->seekpointCount = 0;
+ }
+
+ /* We need to seek back to where we were. If this fails it's a critical error. */
+ if (!pFlac->bs.onSeek(pFlac->bs.pUserData, (int)pFlac->firstFLACFramePosInBytes, drflac_seek_origin_start)) {
+ drflac__free_from_callbacks(pFlac, &allocationCallbacks);
+ return NULL;
+ }
+ } else {
+ /* Failed to seek to the seektable. Ominous sign, but for now we can just pretend we don't have one. */
+ pFlac->pSeekpoints = NULL;
+ pFlac->seekpointCount = 0;
+ }
+ }
+ }
+
+
+ /*
+ If we get here, but don't have a STREAMINFO block, it means we've opened the stream in relaxed mode and need to decode
+ the first frame.
+ */
+ if (!init.hasStreamInfoBlock) {
+ pFlac->currentFLACFrame.header = init.firstFrameHeader;
+ for (;;) {
+ drflac_result result = drflac__decode_flac_frame(pFlac);
+ if (result == DRFLAC_SUCCESS) {
+ break;
+ } else {
+ if (result == DRFLAC_CRC_MISMATCH) {
+ if (!drflac__read_next_flac_frame_header(&pFlac->bs, pFlac->bitsPerSample, &pFlac->currentFLACFrame.header)) {
+ drflac__free_from_callbacks(pFlac, &allocationCallbacks);
+ return NULL;
+ }
+ continue;
+ } else {
+ drflac__free_from_callbacks(pFlac, &allocationCallbacks);
+ return NULL;
+ }
+ }
+ }
+ }
+
+ return pFlac;
+}
+
+
+
+#ifndef DR_FLAC_NO_STDIO
+#include <stdio.h>
+#include <wchar.h> /* For wcslen(), wcsrtombs() */
+
+/* drflac_result_from_errno() is only used for fopen() and wfopen() so putting it inside DR_WAV_NO_STDIO for now. If something else needs this later we can move it out. */
+#include <errno.h>
+static drflac_result drflac_result_from_errno(int e)
+{
+ switch (e)
+ {
+ case 0: return DRFLAC_SUCCESS;
+ #ifdef EPERM
+ case EPERM: return DRFLAC_INVALID_OPERATION;
+ #endif
+ #ifdef ENOENT
+ case ENOENT: return DRFLAC_DOES_NOT_EXIST;
+ #endif
+ #ifdef ESRCH
+ case ESRCH: return DRFLAC_DOES_NOT_EXIST;
+ #endif
+ #ifdef EINTR
+ case EINTR: return DRFLAC_INTERRUPT;
+ #endif
+ #ifdef EIO
+ case EIO: return DRFLAC_IO_ERROR;
+ #endif
+ #ifdef ENXIO
+ case ENXIO: return DRFLAC_DOES_NOT_EXIST;
+ #endif
+ #ifdef E2BIG
+ case E2BIG: return DRFLAC_INVALID_ARGS;
+ #endif
+ #ifdef ENOEXEC
+ case ENOEXEC: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef EBADF
+ case EBADF: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef ECHILD
+ case ECHILD: return DRFLAC_ERROR;
+ #endif
+ #ifdef EAGAIN
+ case EAGAIN: return DRFLAC_UNAVAILABLE;
+ #endif
+ #ifdef ENOMEM
+ case ENOMEM: return DRFLAC_OUT_OF_MEMORY;
+ #endif
+ #ifdef EACCES
+ case EACCES: return DRFLAC_ACCESS_DENIED;
+ #endif
+ #ifdef EFAULT
+ case EFAULT: return DRFLAC_BAD_ADDRESS;
+ #endif
+ #ifdef ENOTBLK
+ case ENOTBLK: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBUSY
+ case EBUSY: return DRFLAC_BUSY;
+ #endif
+ #ifdef EEXIST
+ case EEXIST: return DRFLAC_ALREADY_EXISTS;
+ #endif
+ #ifdef EXDEV
+ case EXDEV: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENODEV
+ case ENODEV: return DRFLAC_DOES_NOT_EXIST;
+ #endif
+ #ifdef ENOTDIR
+ case ENOTDIR: return DRFLAC_NOT_DIRECTORY;
+ #endif
+ #ifdef EISDIR
+ case EISDIR: return DRFLAC_IS_DIRECTORY;
+ #endif
+ #ifdef EINVAL
+ case EINVAL: return DRFLAC_INVALID_ARGS;
+ #endif
+ #ifdef ENFILE
+ case ENFILE: return DRFLAC_TOO_MANY_OPEN_FILES;
+ #endif
+ #ifdef EMFILE
+ case EMFILE: return DRFLAC_TOO_MANY_OPEN_FILES;
+ #endif
+ #ifdef ENOTTY
+ case ENOTTY: return DRFLAC_INVALID_OPERATION;
+ #endif
+ #ifdef ETXTBSY
+ case ETXTBSY: return DRFLAC_BUSY;
+ #endif
+ #ifdef EFBIG
+ case EFBIG: return DRFLAC_TOO_BIG;
+ #endif
+ #ifdef ENOSPC
+ case ENOSPC: return DRFLAC_NO_SPACE;
+ #endif
+ #ifdef ESPIPE
+ case ESPIPE: return DRFLAC_BAD_SEEK;
+ #endif
+ #ifdef EROFS
+ case EROFS: return DRFLAC_ACCESS_DENIED;
+ #endif
+ #ifdef EMLINK
+ case EMLINK: return DRFLAC_TOO_MANY_LINKS;
+ #endif
+ #ifdef EPIPE
+ case EPIPE: return DRFLAC_BAD_PIPE;
+ #endif
+ #ifdef EDOM
+ case EDOM: return DRFLAC_OUT_OF_RANGE;
+ #endif
+ #ifdef ERANGE
+ case ERANGE: return DRFLAC_OUT_OF_RANGE;
+ #endif
+ #ifdef EDEADLK
+ case EDEADLK: return DRFLAC_DEADLOCK;
+ #endif
+ #ifdef ENAMETOOLONG
+ case ENAMETOOLONG: return DRFLAC_PATH_TOO_LONG;
+ #endif
+ #ifdef ENOLCK
+ case ENOLCK: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOSYS
+ case ENOSYS: return DRFLAC_NOT_IMPLEMENTED;
+ #endif
+ #ifdef ENOTEMPTY
+ case ENOTEMPTY: return DRFLAC_DIRECTORY_NOT_EMPTY;
+ #endif
+ #ifdef ELOOP
+ case ELOOP: return DRFLAC_TOO_MANY_LINKS;
+ #endif
+ #ifdef ENOMSG
+ case ENOMSG: return DRFLAC_NO_MESSAGE;
+ #endif
+ #ifdef EIDRM
+ case EIDRM: return DRFLAC_ERROR;
+ #endif
+ #ifdef ECHRNG
+ case ECHRNG: return DRFLAC_ERROR;
+ #endif
+ #ifdef EL2NSYNC
+ case EL2NSYNC: return DRFLAC_ERROR;
+ #endif
+ #ifdef EL3HLT
+ case EL3HLT: return DRFLAC_ERROR;
+ #endif
+ #ifdef EL3RST
+ case EL3RST: return DRFLAC_ERROR;
+ #endif
+ #ifdef ELNRNG
+ case ELNRNG: return DRFLAC_OUT_OF_RANGE;
+ #endif
+ #ifdef EUNATCH
+ case EUNATCH: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOCSI
+ case ENOCSI: return DRFLAC_ERROR;
+ #endif
+ #ifdef EL2HLT
+ case EL2HLT: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBADE
+ case EBADE: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBADR
+ case EBADR: return DRFLAC_ERROR;
+ #endif
+ #ifdef EXFULL
+ case EXFULL: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOANO
+ case ENOANO: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBADRQC
+ case EBADRQC: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBADSLT
+ case EBADSLT: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBFONT
+ case EBFONT: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef ENOSTR
+ case ENOSTR: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENODATA
+ case ENODATA: return DRFLAC_NO_DATA_AVAILABLE;
+ #endif
+ #ifdef ETIME
+ case ETIME: return DRFLAC_TIMEOUT;
+ #endif
+ #ifdef ENOSR
+ case ENOSR: return DRFLAC_NO_DATA_AVAILABLE;
+ #endif
+ #ifdef ENONET
+ case ENONET: return DRFLAC_NO_NETWORK;
+ #endif
+ #ifdef ENOPKG
+ case ENOPKG: return DRFLAC_ERROR;
+ #endif
+ #ifdef EREMOTE
+ case EREMOTE: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOLINK
+ case ENOLINK: return DRFLAC_ERROR;
+ #endif
+ #ifdef EADV
+ case EADV: return DRFLAC_ERROR;
+ #endif
+ #ifdef ESRMNT
+ case ESRMNT: return DRFLAC_ERROR;
+ #endif
+ #ifdef ECOMM
+ case ECOMM: return DRFLAC_ERROR;
+ #endif
+ #ifdef EPROTO
+ case EPROTO: return DRFLAC_ERROR;
+ #endif
+ #ifdef EMULTIHOP
+ case EMULTIHOP: return DRFLAC_ERROR;
+ #endif
+ #ifdef EDOTDOT
+ case EDOTDOT: return DRFLAC_ERROR;
+ #endif
+ #ifdef EBADMSG
+ case EBADMSG: return DRFLAC_BAD_MESSAGE;
+ #endif
+ #ifdef EOVERFLOW
+ case EOVERFLOW: return DRFLAC_TOO_BIG;
+ #endif
+ #ifdef ENOTUNIQ
+ case ENOTUNIQ: return DRFLAC_NOT_UNIQUE;
+ #endif
+ #ifdef EBADFD
+ case EBADFD: return DRFLAC_ERROR;
+ #endif
+ #ifdef EREMCHG
+ case EREMCHG: return DRFLAC_ERROR;
+ #endif
+ #ifdef ELIBACC
+ case ELIBACC: return DRFLAC_ACCESS_DENIED;
+ #endif
+ #ifdef ELIBBAD
+ case ELIBBAD: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef ELIBSCN
+ case ELIBSCN: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef ELIBMAX
+ case ELIBMAX: return DRFLAC_ERROR;
+ #endif
+ #ifdef ELIBEXEC
+ case ELIBEXEC: return DRFLAC_ERROR;
+ #endif
+ #ifdef EILSEQ
+ case EILSEQ: return DRFLAC_INVALID_DATA;
+ #endif
+ #ifdef ERESTART
+ case ERESTART: return DRFLAC_ERROR;
+ #endif
+ #ifdef ESTRPIPE
+ case ESTRPIPE: return DRFLAC_ERROR;
+ #endif
+ #ifdef EUSERS
+ case EUSERS: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOTSOCK
+ case ENOTSOCK: return DRFLAC_NOT_SOCKET;
+ #endif
+ #ifdef EDESTADDRREQ
+ case EDESTADDRREQ: return DRFLAC_NO_ADDRESS;
+ #endif
+ #ifdef EMSGSIZE
+ case EMSGSIZE: return DRFLAC_TOO_BIG;
+ #endif
+ #ifdef EPROTOTYPE
+ case EPROTOTYPE: return DRFLAC_BAD_PROTOCOL;
+ #endif
+ #ifdef ENOPROTOOPT
+ case ENOPROTOOPT: return DRFLAC_PROTOCOL_UNAVAILABLE;
+ #endif
+ #ifdef EPROTONOSUPPORT
+ case EPROTONOSUPPORT: return DRFLAC_PROTOCOL_NOT_SUPPORTED;
+ #endif
+ #ifdef ESOCKTNOSUPPORT
+ case ESOCKTNOSUPPORT: return DRFLAC_SOCKET_NOT_SUPPORTED;
+ #endif
+ #ifdef EOPNOTSUPP
+ case EOPNOTSUPP: return DRFLAC_INVALID_OPERATION;
+ #endif
+ #ifdef EPFNOSUPPORT
+ case EPFNOSUPPORT: return DRFLAC_PROTOCOL_FAMILY_NOT_SUPPORTED;
+ #endif
+ #ifdef EAFNOSUPPORT
+ case EAFNOSUPPORT: return DRFLAC_ADDRESS_FAMILY_NOT_SUPPORTED;
+ #endif
+ #ifdef EADDRINUSE
+ case EADDRINUSE: return DRFLAC_ALREADY_IN_USE;
+ #endif
+ #ifdef EADDRNOTAVAIL
+ case EADDRNOTAVAIL: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENETDOWN
+ case ENETDOWN: return DRFLAC_NO_NETWORK;
+ #endif
+ #ifdef ENETUNREACH
+ case ENETUNREACH: return DRFLAC_NO_NETWORK;
+ #endif
+ #ifdef ENETRESET
+ case ENETRESET: return DRFLAC_NO_NETWORK;
+ #endif
+ #ifdef ECONNABORTED
+ case ECONNABORTED: return DRFLAC_NO_NETWORK;
+ #endif
+ #ifdef ECONNRESET
+ case ECONNRESET: return DRFLAC_CONNECTION_RESET;
+ #endif
+ #ifdef ENOBUFS
+ case ENOBUFS: return DRFLAC_NO_SPACE;
+ #endif
+ #ifdef EISCONN
+ case EISCONN: return DRFLAC_ALREADY_CONNECTED;
+ #endif
+ #ifdef ENOTCONN
+ case ENOTCONN: return DRFLAC_NOT_CONNECTED;
+ #endif
+ #ifdef ESHUTDOWN
+ case ESHUTDOWN: return DRFLAC_ERROR;
+ #endif
+ #ifdef ETOOMANYREFS
+ case ETOOMANYREFS: return DRFLAC_ERROR;
+ #endif
+ #ifdef ETIMEDOUT
+ case ETIMEDOUT: return DRFLAC_TIMEOUT;
+ #endif
+ #ifdef ECONNREFUSED
+ case ECONNREFUSED: return DRFLAC_CONNECTION_REFUSED;
+ #endif
+ #ifdef EHOSTDOWN
+ case EHOSTDOWN: return DRFLAC_NO_HOST;
+ #endif
+ #ifdef EHOSTUNREACH
+ case EHOSTUNREACH: return DRFLAC_NO_HOST;
+ #endif
+ #ifdef EALREADY
+ case EALREADY: return DRFLAC_IN_PROGRESS;
+ #endif
+ #ifdef EINPROGRESS
+ case EINPROGRESS: return DRFLAC_IN_PROGRESS;
+ #endif
+ #ifdef ESTALE
+ case ESTALE: return DRFLAC_INVALID_FILE;
+ #endif
+ #ifdef EUCLEAN
+ case EUCLEAN: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOTNAM
+ case ENOTNAM: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENAVAIL
+ case ENAVAIL: return DRFLAC_ERROR;
+ #endif
+ #ifdef EISNAM
+ case EISNAM: return DRFLAC_ERROR;
+ #endif
+ #ifdef EREMOTEIO
+ case EREMOTEIO: return DRFLAC_IO_ERROR;
+ #endif
+ #ifdef EDQUOT
+ case EDQUOT: return DRFLAC_NO_SPACE;
+ #endif
+ #ifdef ENOMEDIUM
+ case ENOMEDIUM: return DRFLAC_DOES_NOT_EXIST;
+ #endif
+ #ifdef EMEDIUMTYPE
+ case EMEDIUMTYPE: return DRFLAC_ERROR;
+ #endif
+ #ifdef ECANCELED
+ case ECANCELED: return DRFLAC_CANCELLED;
+ #endif
+ #ifdef ENOKEY
+ case ENOKEY: return DRFLAC_ERROR;
+ #endif
+ #ifdef EKEYEXPIRED
+ case EKEYEXPIRED: return DRFLAC_ERROR;
+ #endif
+ #ifdef EKEYREVOKED
+ case EKEYREVOKED: return DRFLAC_ERROR;
+ #endif
+ #ifdef EKEYREJECTED
+ case EKEYREJECTED: return DRFLAC_ERROR;
+ #endif
+ #ifdef EOWNERDEAD
+ case EOWNERDEAD: return DRFLAC_ERROR;
+ #endif
+ #ifdef ENOTRECOVERABLE
+ case ENOTRECOVERABLE: return DRFLAC_ERROR;
+ #endif
+ #ifdef ERFKILL
+ case ERFKILL: return DRFLAC_ERROR;
+ #endif
+ #ifdef EHWPOISON
+ case EHWPOISON: return DRFLAC_ERROR;
+ #endif
+ default: return DRFLAC_ERROR;
+ }
+}
+
+static drflac_result drflac_fopen(FILE** ppFile, const char* pFilePath, const char* pOpenMode)
+{
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+ errno_t err;
+#endif
+
+ if (ppFile != NULL) {
+ *ppFile = NULL; /* Safety. */
+ }
+
+ if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) {
+ return DRFLAC_INVALID_ARGS;
+ }
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+ err = fopen_s(ppFile, pFilePath, pOpenMode);
+ if (err != 0) {
+ return drflac_result_from_errno(err);
+ }
+#else
+#if defined(_WIN32) || defined(__APPLE__)
+ *ppFile = fopen(pFilePath, pOpenMode);
+#else
+ #if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64 && defined(_LARGEFILE64_SOURCE)
+ *ppFile = fopen64(pFilePath, pOpenMode);
+ #else
+ *ppFile = fopen(pFilePath, pOpenMode);
+ #endif
+#endif
+ if (*ppFile == NULL) {
+ drflac_result result = drflac_result_from_errno(errno);
+ if (result == DRFLAC_SUCCESS) {
+ result = DRFLAC_ERROR; /* Just a safety check to make sure we never ever return success when pFile == NULL. */
+ }
+
+ return result;
+ }
+#endif
+
+ return DRFLAC_SUCCESS;
+}
+
+/*
+_wfopen() isn't always available in all compilation environments.
+
+ * Windows only.
+ * MSVC seems to support it universally as far back as VC6 from what I can tell (haven't checked further back).
+ * MinGW-64 (both 32- and 64-bit) seems to support it.
+ * MinGW wraps it in !defined(__STRICT_ANSI__).
+ * OpenWatcom wraps it in !defined(_NO_EXT_KEYS).
+
+This can be reviewed as compatibility issues arise. The preference is to use _wfopen_s() and _wfopen() as opposed to the wcsrtombs()
+fallback, so if you notice your compiler not detecting this properly I'm happy to look at adding support.
+*/
+#if defined(_WIN32)
+ #if defined(_MSC_VER) || defined(__MINGW64__) || (!defined(__STRICT_ANSI__) && !defined(_NO_EXT_KEYS))
+ #define DRFLAC_HAS_WFOPEN
+ #endif
+#endif
+
+static drflac_result drflac_wfopen(FILE** ppFile, const wchar_t* pFilePath, const wchar_t* pOpenMode, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ if (ppFile != NULL) {
+ *ppFile = NULL; /* Safety. */
+ }
+
+ if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) {
+ return DRFLAC_INVALID_ARGS;
+ }
+
+#if defined(DRFLAC_HAS_WFOPEN)
+ {
+ /* Use _wfopen() on Windows. */
+ #if defined(_MSC_VER) && _MSC_VER >= 1400
+ errno_t err = _wfopen_s(ppFile, pFilePath, pOpenMode);
+ if (err != 0) {
+ return drflac_result_from_errno(err);
+ }
+ #else
+ *ppFile = _wfopen(pFilePath, pOpenMode);
+ if (*ppFile == NULL) {
+ return drflac_result_from_errno(errno);
+ }
+ #endif
+ (void)pAllocationCallbacks;
+ }
+#else
+ /*
+ Use fopen() on anything other than Windows. Requires a conversion. This is annoying because fopen() is locale specific. The only real way I can
+ think of to do this is with wcsrtombs(). Note that wcstombs() is apparently not thread-safe because it uses a static global mbstate_t object for
+ maintaining state. I've checked this with -std=c89 and it works, but if somebody get's a compiler error I'll look into improving compatibility.
+ */
+ {
+ mbstate_t mbs;
+ size_t lenMB;
+ const wchar_t* pFilePathTemp = pFilePath;
+ char* pFilePathMB = NULL;
+ char pOpenModeMB[32] = {0};
+
+ /* Get the length first. */
+ DRFLAC_ZERO_OBJECT(&mbs);
+ lenMB = wcsrtombs(NULL, &pFilePathTemp, 0, &mbs);
+ if (lenMB == (size_t)-1) {
+ return drflac_result_from_errno(errno);
+ }
+
+ pFilePathMB = (char*)drflac__malloc_from_callbacks(lenMB + 1, pAllocationCallbacks);
+ if (pFilePathMB == NULL) {
+ return DRFLAC_OUT_OF_MEMORY;
+ }
+
+ pFilePathTemp = pFilePath;
+ DRFLAC_ZERO_OBJECT(&mbs);
+ wcsrtombs(pFilePathMB, &pFilePathTemp, lenMB + 1, &mbs);
+
+ /* The open mode should always consist of ASCII characters so we should be able to do a trivial conversion. */
+ {
+ size_t i = 0;
+ for (;;) {
+ if (pOpenMode[i] == 0) {
+ pOpenModeMB[i] = '\0';
+ break;
+ }
+
+ pOpenModeMB[i] = (char)pOpenMode[i];
+ i += 1;
+ }
+ }
+
+ *ppFile = fopen(pFilePathMB, pOpenModeMB);
+
+ drflac__free_from_callbacks(pFilePathMB, pAllocationCallbacks);
+ }
+
+ if (*ppFile == NULL) {
+ return DRFLAC_ERROR;
+ }
+#endif
+
+ return DRFLAC_SUCCESS;
+}
+
+static size_t drflac__on_read_stdio(void* pUserData, void* bufferOut, size_t bytesToRead)
+{
+ return fread(bufferOut, 1, bytesToRead, (FILE*)pUserData);
+}
+
+static drflac_bool32 drflac__on_seek_stdio(void* pUserData, int offset, drflac_seek_origin origin)
+{
+ DRFLAC_ASSERT(offset >= 0); /* <-- Never seek backwards. */
+
+ return fseek((FILE*)pUserData, offset, (origin == drflac_seek_origin_current) ? SEEK_CUR : SEEK_SET) == 0;
+}
+
+
+DRFLAC_API drflac* drflac_open_file(const char* pFileName, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+ FILE* pFile;
+
+ if (drflac_fopen(&pFile, pFileName, "rb") != DRFLAC_SUCCESS) {
+ return NULL;
+ }
+
+ pFlac = drflac_open(drflac__on_read_stdio, drflac__on_seek_stdio, (void*)pFile, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ fclose(pFile);
+ return NULL;
+ }
+
+ return pFlac;
+}
+
+DRFLAC_API drflac* drflac_open_file_w(const wchar_t* pFileName, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+ FILE* pFile;
+
+ if (drflac_wfopen(&pFile, pFileName, L"rb", pAllocationCallbacks) != DRFLAC_SUCCESS) {
+ return NULL;
+ }
+
+ pFlac = drflac_open(drflac__on_read_stdio, drflac__on_seek_stdio, (void*)pFile, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ fclose(pFile);
+ return NULL;
+ }
+
+ return pFlac;
+}
+
+DRFLAC_API drflac* drflac_open_file_with_metadata(const char* pFileName, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+ FILE* pFile;
+
+ if (drflac_fopen(&pFile, pFileName, "rb") != DRFLAC_SUCCESS) {
+ return NULL;
+ }
+
+ pFlac = drflac_open_with_metadata_private(drflac__on_read_stdio, drflac__on_seek_stdio, onMeta, drflac_container_unknown, (void*)pFile, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ fclose(pFile);
+ return pFlac;
+ }
+
+ return pFlac;
+}
+
+DRFLAC_API drflac* drflac_open_file_with_metadata_w(const wchar_t* pFileName, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+ FILE* pFile;
+
+ if (drflac_wfopen(&pFile, pFileName, L"rb", pAllocationCallbacks) != DRFLAC_SUCCESS) {
+ return NULL;
+ }
+
+ pFlac = drflac_open_with_metadata_private(drflac__on_read_stdio, drflac__on_seek_stdio, onMeta, drflac_container_unknown, (void*)pFile, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ fclose(pFile);
+ return pFlac;
+ }
+
+ return pFlac;
+}
+#endif /* DR_FLAC_NO_STDIO */
+
+static size_t drflac__on_read_memory(void* pUserData, void* bufferOut, size_t bytesToRead)
+{
+ drflac__memory_stream* memoryStream = (drflac__memory_stream*)pUserData;
+ size_t bytesRemaining;
+
+ DRFLAC_ASSERT(memoryStream != NULL);
+ DRFLAC_ASSERT(memoryStream->dataSize >= memoryStream->currentReadPos);
+
+ bytesRemaining = memoryStream->dataSize - memoryStream->currentReadPos;
+ if (bytesToRead > bytesRemaining) {
+ bytesToRead = bytesRemaining;
+ }
+
+ if (bytesToRead > 0) {
+ DRFLAC_COPY_MEMORY(bufferOut, memoryStream->data + memoryStream->currentReadPos, bytesToRead);
+ memoryStream->currentReadPos += bytesToRead;
+ }
+
+ return bytesToRead;
+}
+
+static drflac_bool32 drflac__on_seek_memory(void* pUserData, int offset, drflac_seek_origin origin)
+{
+ drflac__memory_stream* memoryStream = (drflac__memory_stream*)pUserData;
+
+ DRFLAC_ASSERT(memoryStream != NULL);
+ DRFLAC_ASSERT(offset >= 0); /* <-- Never seek backwards. */
+
+ if (offset > (drflac_int64)memoryStream->dataSize) {
+ return DRFLAC_FALSE;
+ }
+
+ if (origin == drflac_seek_origin_current) {
+ if (memoryStream->currentReadPos + offset <= memoryStream->dataSize) {
+ memoryStream->currentReadPos += offset;
+ } else {
+ return DRFLAC_FALSE; /* Trying to seek too far forward. */
+ }
+ } else {
+ if ((drflac_uint32)offset <= memoryStream->dataSize) {
+ memoryStream->currentReadPos = offset;
+ } else {
+ return DRFLAC_FALSE; /* Trying to seek too far forward. */
+ }
+ }
+
+ return DRFLAC_TRUE;
+}
+
+DRFLAC_API drflac* drflac_open_memory(const void* pData, size_t dataSize, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac__memory_stream memoryStream;
+ drflac* pFlac;
+
+ memoryStream.data = (const drflac_uint8*)pData;
+ memoryStream.dataSize = dataSize;
+ memoryStream.currentReadPos = 0;
+ pFlac = drflac_open(drflac__on_read_memory, drflac__on_seek_memory, &memoryStream, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ pFlac->memoryStream = memoryStream;
+
+ /* This is an awful hack... */
+#ifndef DR_FLAC_NO_OGG
+ if (pFlac->container == drflac_container_ogg)
+ {
+ drflac_oggbs* oggbs = (drflac_oggbs*)pFlac->_oggbs;
+ oggbs->pUserData = &pFlac->memoryStream;
+ }
+ else
+#endif
+ {
+ pFlac->bs.pUserData = &pFlac->memoryStream;
+ }
+
+ return pFlac;
+}
+
+DRFLAC_API drflac* drflac_open_memory_with_metadata(const void* pData, size_t dataSize, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac__memory_stream memoryStream;
+ drflac* pFlac;
+
+ memoryStream.data = (const drflac_uint8*)pData;
+ memoryStream.dataSize = dataSize;
+ memoryStream.currentReadPos = 0;
+ pFlac = drflac_open_with_metadata_private(drflac__on_read_memory, drflac__on_seek_memory, onMeta, drflac_container_unknown, &memoryStream, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ pFlac->memoryStream = memoryStream;
+
+ /* This is an awful hack... */
+#ifndef DR_FLAC_NO_OGG
+ if (pFlac->container == drflac_container_ogg)
+ {
+ drflac_oggbs* oggbs = (drflac_oggbs*)pFlac->_oggbs;
+ oggbs->pUserData = &pFlac->memoryStream;
+ }
+ else
+#endif
+ {
+ pFlac->bs.pUserData = &pFlac->memoryStream;
+ }
+
+ return pFlac;
+}
+
+
+
+DRFLAC_API drflac* drflac_open(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ return drflac_open_with_metadata_private(onRead, onSeek, NULL, drflac_container_unknown, pUserData, pUserData, pAllocationCallbacks);
+}
+DRFLAC_API drflac* drflac_open_relaxed(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_container container, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ return drflac_open_with_metadata_private(onRead, onSeek, NULL, container, pUserData, pUserData, pAllocationCallbacks);
+}
+
+DRFLAC_API drflac* drflac_open_with_metadata(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ return drflac_open_with_metadata_private(onRead, onSeek, onMeta, drflac_container_unknown, pUserData, pUserData, pAllocationCallbacks);
+}
+DRFLAC_API drflac* drflac_open_with_metadata_relaxed(drflac_read_proc onRead, drflac_seek_proc onSeek, drflac_meta_proc onMeta, drflac_container container, void* pUserData, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ return drflac_open_with_metadata_private(onRead, onSeek, onMeta, container, pUserData, pUserData, pAllocationCallbacks);
+}
+
+DRFLAC_API void drflac_close(drflac* pFlac)
+{
+ if (pFlac == NULL) {
+ return;
+ }
+
+#ifndef DR_FLAC_NO_STDIO
+ /*
+ If we opened the file with drflac_open_file() we will want to close the file handle. We can know whether or not drflac_open_file()
+ was used by looking at the callbacks.
+ */
+ if (pFlac->bs.onRead == drflac__on_read_stdio) {
+ fclose((FILE*)pFlac->bs.pUserData);
+ }
+
+#ifndef DR_FLAC_NO_OGG
+ /* Need to clean up Ogg streams a bit differently due to the way the bit streaming is chained. */
+ if (pFlac->container == drflac_container_ogg) {
+ drflac_oggbs* oggbs = (drflac_oggbs*)pFlac->_oggbs;
+ DRFLAC_ASSERT(pFlac->bs.onRead == drflac__on_read_ogg);
+
+ if (oggbs->onRead == drflac__on_read_stdio) {
+ fclose((FILE*)oggbs->pUserData);
+ }
+ }
+#endif
+#endif
+
+ drflac__free_from_callbacks(pFlac, &pFlac->allocationCallbacks);
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_left_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 left = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 side = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_left_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 left0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 left1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 left2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 left3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 right0 = left0 - side0;
+ drflac_uint32 right1 = left1 - side1;
+ drflac_uint32 right2 = left2 - side2;
+ drflac_uint32 right3 = left3 - side3;
+
+ pOutputSamples[i*8+0] = (drflac_int32)left0;
+ pOutputSamples[i*8+1] = (drflac_int32)right0;
+ pOutputSamples[i*8+2] = (drflac_int32)left1;
+ pOutputSamples[i*8+3] = (drflac_int32)right1;
+ pOutputSamples[i*8+4] = (drflac_int32)left2;
+ pOutputSamples[i*8+5] = (drflac_int32)right2;
+ pOutputSamples[i*8+6] = (drflac_int32)left3;
+ pOutputSamples[i*8+7] = (drflac_int32)right3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_left_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i left = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i right = _mm_sub_epi32(left, side);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 0), _mm_unpacklo_epi32(left, right));
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 4), _mm_unpackhi_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_left_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t left;
+ uint32x4_t side;
+ uint32x4_t right;
+
+ left = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ right = vsubq_u32(left, side);
+
+ drflac__vst2q_u32((drflac_uint32*)pOutputSamples + i*8, vzipq_u32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_left_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_left_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_left_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s32__decode_left_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s32__decode_left_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_right_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 side = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 right = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_right_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 side0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 side1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 side2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 side3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 right0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 right1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 right2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 right3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 left0 = right0 + side0;
+ drflac_uint32 left1 = right1 + side1;
+ drflac_uint32 left2 = right2 + side2;
+ drflac_uint32 left3 = right3 + side3;
+
+ pOutputSamples[i*8+0] = (drflac_int32)left0;
+ pOutputSamples[i*8+1] = (drflac_int32)right0;
+ pOutputSamples[i*8+2] = (drflac_int32)left1;
+ pOutputSamples[i*8+3] = (drflac_int32)right1;
+ pOutputSamples[i*8+4] = (drflac_int32)left2;
+ pOutputSamples[i*8+5] = (drflac_int32)right2;
+ pOutputSamples[i*8+6] = (drflac_int32)left3;
+ pOutputSamples[i*8+7] = (drflac_int32)right3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_right_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i right = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i left = _mm_add_epi32(right, side);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 0), _mm_unpacklo_epi32(left, right));
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 4), _mm_unpackhi_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_right_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t side;
+ uint32x4_t right;
+ uint32x4_t left;
+
+ side = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ right = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ left = vaddq_u32(right, side);
+
+ drflac__vst2q_u32((drflac_uint32*)pOutputSamples + i*8, vzipq_u32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left;
+ pOutputSamples[i*2+1] = (drflac_int32)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_right_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_right_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_right_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s32__decode_right_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s32__decode_right_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_mid_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid + side) >> 1) << unusedBitsPerSample);
+ pOutputSamples[i*2+1] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid - side) >> 1) << unusedBitsPerSample);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_mid_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_int32 shift = unusedBitsPerSample;
+
+ if (shift > 0) {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = (mid0 + side0) << shift;
+ temp1L = (mid1 + side1) << shift;
+ temp2L = (mid2 + side2) << shift;
+ temp3L = (mid3 + side3) << shift;
+
+ temp0R = (mid0 - side0) << shift;
+ temp1R = (mid1 - side1) << shift;
+ temp2R = (mid2 - side2) << shift;
+ temp3R = (mid3 - side3) << shift;
+
+ pOutputSamples[i*8+0] = (drflac_int32)temp0L;
+ pOutputSamples[i*8+1] = (drflac_int32)temp0R;
+ pOutputSamples[i*8+2] = (drflac_int32)temp1L;
+ pOutputSamples[i*8+3] = (drflac_int32)temp1R;
+ pOutputSamples[i*8+4] = (drflac_int32)temp2L;
+ pOutputSamples[i*8+5] = (drflac_int32)temp2R;
+ pOutputSamples[i*8+6] = (drflac_int32)temp3L;
+ pOutputSamples[i*8+7] = (drflac_int32)temp3R;
+ }
+ } else {
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = (drflac_uint32)((drflac_int32)(mid0 + side0) >> 1);
+ temp1L = (drflac_uint32)((drflac_int32)(mid1 + side1) >> 1);
+ temp2L = (drflac_uint32)((drflac_int32)(mid2 + side2) >> 1);
+ temp3L = (drflac_uint32)((drflac_int32)(mid3 + side3) >> 1);
+
+ temp0R = (drflac_uint32)((drflac_int32)(mid0 - side0) >> 1);
+ temp1R = (drflac_uint32)((drflac_int32)(mid1 - side1) >> 1);
+ temp2R = (drflac_uint32)((drflac_int32)(mid2 - side2) >> 1);
+ temp3R = (drflac_uint32)((drflac_int32)(mid3 - side3) >> 1);
+
+ pOutputSamples[i*8+0] = (drflac_int32)temp0L;
+ pOutputSamples[i*8+1] = (drflac_int32)temp0R;
+ pOutputSamples[i*8+2] = (drflac_int32)temp1L;
+ pOutputSamples[i*8+3] = (drflac_int32)temp1R;
+ pOutputSamples[i*8+4] = (drflac_int32)temp2L;
+ pOutputSamples[i*8+5] = (drflac_int32)temp2R;
+ pOutputSamples[i*8+6] = (drflac_int32)temp3L;
+ pOutputSamples[i*8+7] = (drflac_int32)temp3R;
+ }
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid + side) >> 1) << unusedBitsPerSample);
+ pOutputSamples[i*2+1] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid - side) >> 1) << unusedBitsPerSample);
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_mid_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_int32 shift = unusedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i left;
+ __m128i right;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ left = _mm_srai_epi32(_mm_add_epi32(mid, side), 1);
+ right = _mm_srai_epi32(_mm_sub_epi32(mid, side), 1);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 0), _mm_unpacklo_epi32(left, right));
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 4), _mm_unpackhi_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)(mid + side) >> 1;
+ pOutputSamples[i*2+1] = (drflac_int32)(mid - side) >> 1;
+ }
+ } else {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i left;
+ __m128i right;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ left = _mm_slli_epi32(_mm_add_epi32(mid, side), shift);
+ right = _mm_slli_epi32(_mm_sub_epi32(mid, side), shift);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 0), _mm_unpacklo_epi32(left, right));
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 4), _mm_unpackhi_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((mid + side) << shift);
+ pOutputSamples[i*2+1] = (drflac_int32)((mid - side) << shift);
+ }
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_mid_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_int32 shift = unusedBitsPerSample;
+ int32x4_t wbpsShift0_4; /* wbps = Wasted Bits Per Sample */
+ int32x4_t wbpsShift1_4; /* wbps = Wasted Bits Per Sample */
+ uint32x4_t one4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ wbpsShift0_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ wbpsShift1_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ one4 = vdupq_n_u32(1);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t mid;
+ uint32x4_t side;
+ int32x4_t left;
+ int32x4_t right;
+
+ mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbpsShift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbpsShift1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, one4));
+
+ left = vshrq_n_s32(vreinterpretq_s32_u32(vaddq_u32(mid, side)), 1);
+ right = vshrq_n_s32(vreinterpretq_s32_u32(vsubq_u32(mid, side)), 1);
+
+ drflac__vst2q_s32(pOutputSamples + i*8, vzipq_s32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)(mid + side) >> 1;
+ pOutputSamples[i*2+1] = (drflac_int32)(mid - side) >> 1;
+ }
+ } else {
+ int32x4_t shift4;
+
+ shift -= 1;
+ shift4 = vdupq_n_s32(shift);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t mid;
+ uint32x4_t side;
+ int32x4_t left;
+ int32x4_t right;
+
+ mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbpsShift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbpsShift1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, one4));
+
+ left = vreinterpretq_s32_u32(vshlq_u32(vaddq_u32(mid, side), shift4));
+ right = vreinterpretq_s32_u32(vshlq_u32(vsubq_u32(mid, side), shift4));
+
+ drflac__vst2q_s32(pOutputSamples + i*8, vzipq_s32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((mid + side) << shift);
+ pOutputSamples[i*2+1] = (drflac_int32)((mid - side) << shift);
+ }
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_mid_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_mid_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_mid_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s32__decode_mid_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s32__decode_mid_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_independent_stereo__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)((drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample));
+ pOutputSamples[i*2+1] = (drflac_int32)((drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample));
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_independent_stereo__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 tempL0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 tempL1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 tempL2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 tempL3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 tempR0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 tempR1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 tempR2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 tempR3 = pInputSamples1U32[i*4+3] << shift1;
+
+ pOutputSamples[i*8+0] = (drflac_int32)tempL0;
+ pOutputSamples[i*8+1] = (drflac_int32)tempR0;
+ pOutputSamples[i*8+2] = (drflac_int32)tempL1;
+ pOutputSamples[i*8+3] = (drflac_int32)tempR1;
+ pOutputSamples[i*8+4] = (drflac_int32)tempL2;
+ pOutputSamples[i*8+5] = (drflac_int32)tempR2;
+ pOutputSamples[i*8+6] = (drflac_int32)tempL3;
+ pOutputSamples[i*8+7] = (drflac_int32)tempR3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0);
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1);
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_independent_stereo__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i left = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i right = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 0), _mm_unpacklo_epi32(left, right));
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8 + 4), _mm_unpackhi_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0);
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1);
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_independent_stereo__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ int32x4_t shift4_0 = vdupq_n_s32(shift0);
+ int32x4_t shift4_1 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ int32x4_t left;
+ int32x4_t right;
+
+ left = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift4_0));
+ right = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift4_1));
+
+ drflac__vst2q_s32(pOutputSamples + i*8, vzipq_s32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0);
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s32__decode_independent_stereo(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int32* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_independent_stereo__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s32__decode_independent_stereo__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s32__decode_independent_stereo__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s32__decode_independent_stereo__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_s32(drflac* pFlac, drflac_uint64 framesToRead, drflac_int32* pBufferOut)
+{
+ drflac_uint64 framesRead;
+ drflac_uint32 unusedBitsPerSample;
+
+ if (pFlac == NULL || framesToRead == 0) {
+ return 0;
+ }
+
+ if (pBufferOut == NULL) {
+ return drflac__seek_forward_by_pcm_frames(pFlac, framesToRead);
+ }
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 32);
+ unusedBitsPerSample = 32 - pFlac->bitsPerSample;
+
+ framesRead = 0;
+ while (framesToRead > 0) {
+ /* If we've run out of samples in this frame, go to the next. */
+ if (pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_and_decode_next_flac_frame(pFlac)) {
+ break; /* Couldn't read the next frame, so just break from the loop and return. */
+ }
+ } else {
+ unsigned int channelCount = drflac__get_channel_count_from_channel_assignment(pFlac->currentFLACFrame.header.channelAssignment);
+ drflac_uint64 iFirstPCMFrame = pFlac->currentFLACFrame.header.blockSizeInPCMFrames - pFlac->currentFLACFrame.pcmFramesRemaining;
+ drflac_uint64 frameCountThisIteration = framesToRead;
+
+ if (frameCountThisIteration > pFlac->currentFLACFrame.pcmFramesRemaining) {
+ frameCountThisIteration = pFlac->currentFLACFrame.pcmFramesRemaining;
+ }
+
+ if (channelCount == 2) {
+ const drflac_int32* pDecodedSamples0 = pFlac->currentFLACFrame.subframes[0].pSamplesS32 + iFirstPCMFrame;
+ const drflac_int32* pDecodedSamples1 = pFlac->currentFLACFrame.subframes[1].pSamplesS32 + iFirstPCMFrame;
+
+ switch (pFlac->currentFLACFrame.header.channelAssignment)
+ {
+ case DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE:
+ {
+ drflac_read_pcm_frames_s32__decode_left_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+ {
+ drflac_read_pcm_frames_s32__decode_right_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE:
+ {
+ drflac_read_pcm_frames_s32__decode_mid_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_INDEPENDENT:
+ default:
+ {
+ drflac_read_pcm_frames_s32__decode_independent_stereo(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+ }
+ } else {
+ /* Generic interleaving. */
+ drflac_uint64 i;
+ for (i = 0; i < frameCountThisIteration; ++i) {
+ unsigned int j;
+ for (j = 0; j < channelCount; ++j) {
+ pBufferOut[(i*channelCount)+j] = (drflac_int32)((drflac_uint32)(pFlac->currentFLACFrame.subframes[j].pSamplesS32[iFirstPCMFrame + i]) << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[j].wastedBitsPerSample));
+ }
+ }
+ }
+
+ framesRead += frameCountThisIteration;
+ pBufferOut += frameCountThisIteration * channelCount;
+ framesToRead -= frameCountThisIteration;
+ pFlac->currentPCMFrame += frameCountThisIteration;
+ pFlac->currentFLACFrame.pcmFramesRemaining -= (drflac_uint32)frameCountThisIteration;
+ }
+ }
+
+ return framesRead;
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_left_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 left = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 side = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 right = left - side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_left_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 left0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 left1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 left2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 left3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 right0 = left0 - side0;
+ drflac_uint32 right1 = left1 - side1;
+ drflac_uint32 right2 = left2 - side2;
+ drflac_uint32 right3 = left3 - side3;
+
+ left0 >>= 16;
+ left1 >>= 16;
+ left2 >>= 16;
+ left3 >>= 16;
+
+ right0 >>= 16;
+ right1 >>= 16;
+ right2 >>= 16;
+ right3 >>= 16;
+
+ pOutputSamples[i*8+0] = (drflac_int16)left0;
+ pOutputSamples[i*8+1] = (drflac_int16)right0;
+ pOutputSamples[i*8+2] = (drflac_int16)left1;
+ pOutputSamples[i*8+3] = (drflac_int16)right1;
+ pOutputSamples[i*8+4] = (drflac_int16)left2;
+ pOutputSamples[i*8+5] = (drflac_int16)right2;
+ pOutputSamples[i*8+6] = (drflac_int16)left3;
+ pOutputSamples[i*8+7] = (drflac_int16)right3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_left_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i left = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i right = _mm_sub_epi32(left, side);
+
+ left = _mm_srai_epi32(left, 16);
+ right = _mm_srai_epi32(right, 16);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8), drflac__mm_packs_interleaved_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_left_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t left;
+ uint32x4_t side;
+ uint32x4_t right;
+
+ left = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ right = vsubq_u32(left, side);
+
+ left = vshrq_n_u32(left, 16);
+ right = vshrq_n_u32(right, 16);
+
+ drflac__vst2q_u16((drflac_uint16*)pOutputSamples + i*8, vzip_u16(vmovn_u32(left), vmovn_u32(right)));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_left_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_left_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_left_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s16__decode_left_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s16__decode_left_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_right_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 side = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 right = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 left = right + side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_right_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 side0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 side1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 side2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 side3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 right0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 right1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 right2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 right3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 left0 = right0 + side0;
+ drflac_uint32 left1 = right1 + side1;
+ drflac_uint32 left2 = right2 + side2;
+ drflac_uint32 left3 = right3 + side3;
+
+ left0 >>= 16;
+ left1 >>= 16;
+ left2 >>= 16;
+ left3 >>= 16;
+
+ right0 >>= 16;
+ right1 >>= 16;
+ right2 >>= 16;
+ right3 >>= 16;
+
+ pOutputSamples[i*8+0] = (drflac_int16)left0;
+ pOutputSamples[i*8+1] = (drflac_int16)right0;
+ pOutputSamples[i*8+2] = (drflac_int16)left1;
+ pOutputSamples[i*8+3] = (drflac_int16)right1;
+ pOutputSamples[i*8+4] = (drflac_int16)left2;
+ pOutputSamples[i*8+5] = (drflac_int16)right2;
+ pOutputSamples[i*8+6] = (drflac_int16)left3;
+ pOutputSamples[i*8+7] = (drflac_int16)right3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_right_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i right = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i left = _mm_add_epi32(right, side);
+
+ left = _mm_srai_epi32(left, 16);
+ right = _mm_srai_epi32(right, 16);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8), drflac__mm_packs_interleaved_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_right_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t side;
+ uint32x4_t right;
+ uint32x4_t left;
+
+ side = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ right = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ left = vaddq_u32(right, side);
+
+ left = vshrq_n_u32(left, 16);
+ right = vshrq_n_u32(right, 16);
+
+ drflac__vst2q_u16((drflac_uint16*)pOutputSamples + i*8, vzip_u16(vmovn_u32(left), vmovn_u32(right)));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ left >>= 16;
+ right >>= 16;
+
+ pOutputSamples[i*2+0] = (drflac_int16)left;
+ pOutputSamples[i*2+1] = (drflac_int16)right;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_right_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_right_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_right_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s16__decode_right_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s16__decode_right_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_mid_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ drflac_uint32 mid = (drflac_uint32)pInputSamples0[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = (drflac_uint32)pInputSamples1[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((drflac_uint32)((drflac_int32)(mid + side) >> 1) << unusedBitsPerSample) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((drflac_uint32)((drflac_int32)(mid - side) >> 1) << unusedBitsPerSample) >> 16);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_mid_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample;
+
+ if (shift > 0) {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = (mid0 + side0) << shift;
+ temp1L = (mid1 + side1) << shift;
+ temp2L = (mid2 + side2) << shift;
+ temp3L = (mid3 + side3) << shift;
+
+ temp0R = (mid0 - side0) << shift;
+ temp1R = (mid1 - side1) << shift;
+ temp2R = (mid2 - side2) << shift;
+ temp3R = (mid3 - side3) << shift;
+
+ temp0L >>= 16;
+ temp1L >>= 16;
+ temp2L >>= 16;
+ temp3L >>= 16;
+
+ temp0R >>= 16;
+ temp1R >>= 16;
+ temp2R >>= 16;
+ temp3R >>= 16;
+
+ pOutputSamples[i*8+0] = (drflac_int16)temp0L;
+ pOutputSamples[i*8+1] = (drflac_int16)temp0R;
+ pOutputSamples[i*8+2] = (drflac_int16)temp1L;
+ pOutputSamples[i*8+3] = (drflac_int16)temp1R;
+ pOutputSamples[i*8+4] = (drflac_int16)temp2L;
+ pOutputSamples[i*8+5] = (drflac_int16)temp2R;
+ pOutputSamples[i*8+6] = (drflac_int16)temp3L;
+ pOutputSamples[i*8+7] = (drflac_int16)temp3R;
+ }
+ } else {
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = ((drflac_int32)(mid0 + side0) >> 1);
+ temp1L = ((drflac_int32)(mid1 + side1) >> 1);
+ temp2L = ((drflac_int32)(mid2 + side2) >> 1);
+ temp3L = ((drflac_int32)(mid3 + side3) >> 1);
+
+ temp0R = ((drflac_int32)(mid0 - side0) >> 1);
+ temp1R = ((drflac_int32)(mid1 - side1) >> 1);
+ temp2R = ((drflac_int32)(mid2 - side2) >> 1);
+ temp3R = ((drflac_int32)(mid3 - side3) >> 1);
+
+ temp0L >>= 16;
+ temp1L >>= 16;
+ temp2L >>= 16;
+ temp3L >>= 16;
+
+ temp0R >>= 16;
+ temp1R >>= 16;
+ temp2R >>= 16;
+ temp3R >>= 16;
+
+ pOutputSamples[i*8+0] = (drflac_int16)temp0L;
+ pOutputSamples[i*8+1] = (drflac_int16)temp0R;
+ pOutputSamples[i*8+2] = (drflac_int16)temp1L;
+ pOutputSamples[i*8+3] = (drflac_int16)temp1R;
+ pOutputSamples[i*8+4] = (drflac_int16)temp2L;
+ pOutputSamples[i*8+5] = (drflac_int16)temp2R;
+ pOutputSamples[i*8+6] = (drflac_int16)temp3L;
+ pOutputSamples[i*8+7] = (drflac_int16)temp3R;
+ }
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((drflac_uint32)((drflac_int32)(mid + side) >> 1) << unusedBitsPerSample) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((drflac_uint32)((drflac_int32)(mid - side) >> 1) << unusedBitsPerSample) >> 16);
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_mid_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i left;
+ __m128i right;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ left = _mm_srai_epi32(_mm_add_epi32(mid, side), 1);
+ right = _mm_srai_epi32(_mm_sub_epi32(mid, side), 1);
+
+ left = _mm_srai_epi32(left, 16);
+ right = _mm_srai_epi32(right, 16);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8), drflac__mm_packs_interleaved_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((drflac_int32)(mid + side) >> 1) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((drflac_int32)(mid - side) >> 1) >> 16);
+ }
+ } else {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i left;
+ __m128i right;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ left = _mm_slli_epi32(_mm_add_epi32(mid, side), shift);
+ right = _mm_slli_epi32(_mm_sub_epi32(mid, side), shift);
+
+ left = _mm_srai_epi32(left, 16);
+ right = _mm_srai_epi32(right, 16);
+
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8), drflac__mm_packs_interleaved_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((mid + side) << shift) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((mid - side) << shift) >> 16);
+ }
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_mid_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample;
+ int32x4_t wbpsShift0_4; /* wbps = Wasted Bits Per Sample */
+ int32x4_t wbpsShift1_4; /* wbps = Wasted Bits Per Sample */
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ wbpsShift0_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ wbpsShift1_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t mid;
+ uint32x4_t side;
+ int32x4_t left;
+ int32x4_t right;
+
+ mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbpsShift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbpsShift1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, vdupq_n_u32(1)));
+
+ left = vshrq_n_s32(vreinterpretq_s32_u32(vaddq_u32(mid, side)), 1);
+ right = vshrq_n_s32(vreinterpretq_s32_u32(vsubq_u32(mid, side)), 1);
+
+ left = vshrq_n_s32(left, 16);
+ right = vshrq_n_s32(right, 16);
+
+ drflac__vst2q_s16(pOutputSamples + i*8, vzip_s16(vmovn_s32(left), vmovn_s32(right)));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((drflac_int32)(mid + side) >> 1) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((drflac_int32)(mid - side) >> 1) >> 16);
+ }
+ } else {
+ int32x4_t shift4;
+
+ shift -= 1;
+ shift4 = vdupq_n_s32(shift);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t mid;
+ uint32x4_t side;
+ int32x4_t left;
+ int32x4_t right;
+
+ mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbpsShift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbpsShift1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, vdupq_n_u32(1)));
+
+ left = vreinterpretq_s32_u32(vshlq_u32(vaddq_u32(mid, side), shift4));
+ right = vreinterpretq_s32_u32(vshlq_u32(vsubq_u32(mid, side), shift4));
+
+ left = vshrq_n_s32(left, 16);
+ right = vshrq_n_s32(right, 16);
+
+ drflac__vst2q_s16(pOutputSamples + i*8, vzip_s16(vmovn_s32(left), vmovn_s32(right)));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int16)(((mid + side) << shift) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)(((mid - side) << shift) >> 16);
+ }
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_mid_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_mid_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_mid_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s16__decode_mid_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s16__decode_mid_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_independent_stereo__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int16)((drflac_int32)((drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample)) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)((drflac_int32)((drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample)) >> 16);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_independent_stereo__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 tempL0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 tempL1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 tempL2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 tempL3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 tempR0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 tempR1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 tempR2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 tempR3 = pInputSamples1U32[i*4+3] << shift1;
+
+ tempL0 >>= 16;
+ tempL1 >>= 16;
+ tempL2 >>= 16;
+ tempL3 >>= 16;
+
+ tempR0 >>= 16;
+ tempR1 >>= 16;
+ tempR2 >>= 16;
+ tempR3 >>= 16;
+
+ pOutputSamples[i*8+0] = (drflac_int16)tempL0;
+ pOutputSamples[i*8+1] = (drflac_int16)tempR0;
+ pOutputSamples[i*8+2] = (drflac_int16)tempL1;
+ pOutputSamples[i*8+3] = (drflac_int16)tempR1;
+ pOutputSamples[i*8+4] = (drflac_int16)tempL2;
+ pOutputSamples[i*8+5] = (drflac_int16)tempR2;
+ pOutputSamples[i*8+6] = (drflac_int16)tempL3;
+ pOutputSamples[i*8+7] = (drflac_int16)tempR3;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int16)((pInputSamples0U32[i] << shift0) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)((pInputSamples1U32[i] << shift1) >> 16);
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_independent_stereo__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i left = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i right = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+
+ left = _mm_srai_epi32(left, 16);
+ right = _mm_srai_epi32(right, 16);
+
+ /* At this point we have results. We can now pack and interleave these into a single __m128i object and then store the in the output buffer. */
+ _mm_storeu_si128((__m128i*)(pOutputSamples + i*8), drflac__mm_packs_interleaved_epi32(left, right));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int16)((pInputSamples0U32[i] << shift0) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)((pInputSamples1U32[i] << shift1) >> 16);
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_independent_stereo__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ int32x4_t shift0_4 = vdupq_n_s32(shift0);
+ int32x4_t shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ int32x4_t left;
+ int32x4_t right;
+
+ left = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4));
+ right = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4));
+
+ left = vshrq_n_s32(left, 16);
+ right = vshrq_n_s32(right, 16);
+
+ drflac__vst2q_s16(pOutputSamples + i*8, vzip_s16(vmovn_s32(left), vmovn_s32(right)));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int16)((pInputSamples0U32[i] << shift0) >> 16);
+ pOutputSamples[i*2+1] = (drflac_int16)((pInputSamples1U32[i] << shift1) >> 16);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_s16__decode_independent_stereo(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, drflac_int16* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_independent_stereo__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_s16__decode_independent_stereo__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_s16__decode_independent_stereo__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_s16__decode_independent_stereo__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_s16(drflac* pFlac, drflac_uint64 framesToRead, drflac_int16* pBufferOut)
+{
+ drflac_uint64 framesRead;
+ drflac_uint32 unusedBitsPerSample;
+
+ if (pFlac == NULL || framesToRead == 0) {
+ return 0;
+ }
+
+ if (pBufferOut == NULL) {
+ return drflac__seek_forward_by_pcm_frames(pFlac, framesToRead);
+ }
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 32);
+ unusedBitsPerSample = 32 - pFlac->bitsPerSample;
+
+ framesRead = 0;
+ while (framesToRead > 0) {
+ /* If we've run out of samples in this frame, go to the next. */
+ if (pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_and_decode_next_flac_frame(pFlac)) {
+ break; /* Couldn't read the next frame, so just break from the loop and return. */
+ }
+ } else {
+ unsigned int channelCount = drflac__get_channel_count_from_channel_assignment(pFlac->currentFLACFrame.header.channelAssignment);
+ drflac_uint64 iFirstPCMFrame = pFlac->currentFLACFrame.header.blockSizeInPCMFrames - pFlac->currentFLACFrame.pcmFramesRemaining;
+ drflac_uint64 frameCountThisIteration = framesToRead;
+
+ if (frameCountThisIteration > pFlac->currentFLACFrame.pcmFramesRemaining) {
+ frameCountThisIteration = pFlac->currentFLACFrame.pcmFramesRemaining;
+ }
+
+ if (channelCount == 2) {
+ const drflac_int32* pDecodedSamples0 = pFlac->currentFLACFrame.subframes[0].pSamplesS32 + iFirstPCMFrame;
+ const drflac_int32* pDecodedSamples1 = pFlac->currentFLACFrame.subframes[1].pSamplesS32 + iFirstPCMFrame;
+
+ switch (pFlac->currentFLACFrame.header.channelAssignment)
+ {
+ case DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE:
+ {
+ drflac_read_pcm_frames_s16__decode_left_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+ {
+ drflac_read_pcm_frames_s16__decode_right_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE:
+ {
+ drflac_read_pcm_frames_s16__decode_mid_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_INDEPENDENT:
+ default:
+ {
+ drflac_read_pcm_frames_s16__decode_independent_stereo(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+ }
+ } else {
+ /* Generic interleaving. */
+ drflac_uint64 i;
+ for (i = 0; i < frameCountThisIteration; ++i) {
+ unsigned int j;
+ for (j = 0; j < channelCount; ++j) {
+ drflac_int32 sampleS32 = (drflac_int32)((drflac_uint32)(pFlac->currentFLACFrame.subframes[j].pSamplesS32[iFirstPCMFrame + i]) << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[j].wastedBitsPerSample));
+ pBufferOut[(i*channelCount)+j] = (drflac_int16)(sampleS32 >> 16);
+ }
+ }
+ }
+
+ framesRead += frameCountThisIteration;
+ pBufferOut += frameCountThisIteration * channelCount;
+ framesToRead -= frameCountThisIteration;
+ pFlac->currentPCMFrame += frameCountThisIteration;
+ pFlac->currentFLACFrame.pcmFramesRemaining -= (drflac_uint32)frameCountThisIteration;
+ }
+ }
+
+ return framesRead;
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_left_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 left = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 side = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (float)((drflac_int32)left / 2147483648.0);
+ pOutputSamples[i*2+1] = (float)((drflac_int32)right / 2147483648.0);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_left_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ float factor = 1 / 2147483648.0;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 left0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 left1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 left2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 left3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 right0 = left0 - side0;
+ drflac_uint32 right1 = left1 - side1;
+ drflac_uint32 right2 = left2 - side2;
+ drflac_uint32 right3 = left3 - side3;
+
+ pOutputSamples[i*8+0] = (drflac_int32)left0 * factor;
+ pOutputSamples[i*8+1] = (drflac_int32)right0 * factor;
+ pOutputSamples[i*8+2] = (drflac_int32)left1 * factor;
+ pOutputSamples[i*8+3] = (drflac_int32)right1 * factor;
+ pOutputSamples[i*8+4] = (drflac_int32)left2 * factor;
+ pOutputSamples[i*8+5] = (drflac_int32)right2 * factor;
+ pOutputSamples[i*8+6] = (drflac_int32)left3 * factor;
+ pOutputSamples[i*8+7] = (drflac_int32)right3 * factor;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)right * factor;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_left_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+ __m128 factor;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor = _mm_set1_ps(1.0f / 8388608.0f);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i left = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i right = _mm_sub_epi32(left, side);
+ __m128 leftf = _mm_mul_ps(_mm_cvtepi32_ps(left), factor);
+ __m128 rightf = _mm_mul_ps(_mm_cvtepi32_ps(right), factor);
+
+ _mm_storeu_ps(pOutputSamples + i*8 + 0, _mm_unpacklo_ps(leftf, rightf));
+ _mm_storeu_ps(pOutputSamples + i*8 + 4, _mm_unpackhi_ps(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left / 8388608.0f;
+ pOutputSamples[i*2+1] = (drflac_int32)right / 8388608.0f;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_left_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+ float32x4_t factor4;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor4 = vdupq_n_f32(1.0f / 8388608.0f);
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t left;
+ uint32x4_t side;
+ uint32x4_t right;
+ float32x4_t leftf;
+ float32x4_t rightf;
+
+ left = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ right = vsubq_u32(left, side);
+ leftf = vmulq_f32(vcvtq_f32_s32(vreinterpretq_s32_u32(left)), factor4);
+ rightf = vmulq_f32(vcvtq_f32_s32(vreinterpretq_s32_u32(right)), factor4);
+
+ drflac__vst2q_f32(pOutputSamples + i*8, vzipq_f32(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 left = pInputSamples0U32[i] << shift0;
+ drflac_uint32 side = pInputSamples1U32[i] << shift1;
+ drflac_uint32 right = left - side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left / 8388608.0f;
+ pOutputSamples[i*2+1] = (drflac_int32)right / 8388608.0f;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_left_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_left_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_left_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_f32__decode_left_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_f32__decode_left_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_right_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ for (i = 0; i < frameCount; ++i) {
+ drflac_uint32 side = (drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ drflac_uint32 right = (drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (float)((drflac_int32)left / 2147483648.0);
+ pOutputSamples[i*2+1] = (float)((drflac_int32)right / 2147483648.0);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_right_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ float factor = 1 / 2147483648.0;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 side0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 side1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 side2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 side3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 right0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 right1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 right2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 right3 = pInputSamples1U32[i*4+3] << shift1;
+
+ drflac_uint32 left0 = right0 + side0;
+ drflac_uint32 left1 = right1 + side1;
+ drflac_uint32 left2 = right2 + side2;
+ drflac_uint32 left3 = right3 + side3;
+
+ pOutputSamples[i*8+0] = (drflac_int32)left0 * factor;
+ pOutputSamples[i*8+1] = (drflac_int32)right0 * factor;
+ pOutputSamples[i*8+2] = (drflac_int32)left1 * factor;
+ pOutputSamples[i*8+3] = (drflac_int32)right1 * factor;
+ pOutputSamples[i*8+4] = (drflac_int32)left2 * factor;
+ pOutputSamples[i*8+5] = (drflac_int32)right2 * factor;
+ pOutputSamples[i*8+6] = (drflac_int32)left3 * factor;
+ pOutputSamples[i*8+7] = (drflac_int32)right3 * factor;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)right * factor;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_right_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+ __m128 factor;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor = _mm_set1_ps(1.0f / 8388608.0f);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ __m128i right = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+ __m128i left = _mm_add_epi32(right, side);
+ __m128 leftf = _mm_mul_ps(_mm_cvtepi32_ps(left), factor);
+ __m128 rightf = _mm_mul_ps(_mm_cvtepi32_ps(right), factor);
+
+ _mm_storeu_ps(pOutputSamples + i*8 + 0, _mm_unpacklo_ps(leftf, rightf));
+ _mm_storeu_ps(pOutputSamples + i*8 + 4, _mm_unpackhi_ps(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left / 8388608.0f;
+ pOutputSamples[i*2+1] = (drflac_int32)right / 8388608.0f;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_right_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+ float32x4_t factor4;
+ int32x4_t shift0_4;
+ int32x4_t shift1_4;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor4 = vdupq_n_f32(1.0f / 8388608.0f);
+ shift0_4 = vdupq_n_s32(shift0);
+ shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t side;
+ uint32x4_t right;
+ uint32x4_t left;
+ float32x4_t leftf;
+ float32x4_t rightf;
+
+ side = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4);
+ right = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4);
+ left = vaddq_u32(right, side);
+ leftf = vmulq_f32(vcvtq_f32_s32(vreinterpretq_s32_u32(left)), factor4);
+ rightf = vmulq_f32(vcvtq_f32_s32(vreinterpretq_s32_u32(right)), factor4);
+
+ drflac__vst2q_f32(pOutputSamples + i*8, vzipq_f32(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 side = pInputSamples0U32[i] << shift0;
+ drflac_uint32 right = pInputSamples1U32[i] << shift1;
+ drflac_uint32 left = right + side;
+
+ pOutputSamples[i*2+0] = (drflac_int32)left / 8388608.0f;
+ pOutputSamples[i*2+1] = (drflac_int32)right / 8388608.0f;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_right_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_right_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_right_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_f32__decode_right_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_f32__decode_right_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_mid_side__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ drflac_uint32 mid = (drflac_uint32)pInputSamples0[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = (drflac_uint32)pInputSamples1[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (float)((((drflac_int32)(mid + side) >> 1) << (unusedBitsPerSample)) / 2147483648.0);
+ pOutputSamples[i*2+1] = (float)((((drflac_int32)(mid - side) >> 1) << (unusedBitsPerSample)) / 2147483648.0);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_mid_side__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample;
+ float factor = 1 / 2147483648.0;
+
+ if (shift > 0) {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = (mid0 + side0) << shift;
+ temp1L = (mid1 + side1) << shift;
+ temp2L = (mid2 + side2) << shift;
+ temp3L = (mid3 + side3) << shift;
+
+ temp0R = (mid0 - side0) << shift;
+ temp1R = (mid1 - side1) << shift;
+ temp2R = (mid2 - side2) << shift;
+ temp3R = (mid3 - side3) << shift;
+
+ pOutputSamples[i*8+0] = (drflac_int32)temp0L * factor;
+ pOutputSamples[i*8+1] = (drflac_int32)temp0R * factor;
+ pOutputSamples[i*8+2] = (drflac_int32)temp1L * factor;
+ pOutputSamples[i*8+3] = (drflac_int32)temp1R * factor;
+ pOutputSamples[i*8+4] = (drflac_int32)temp2L * factor;
+ pOutputSamples[i*8+5] = (drflac_int32)temp2R * factor;
+ pOutputSamples[i*8+6] = (drflac_int32)temp3L * factor;
+ pOutputSamples[i*8+7] = (drflac_int32)temp3R * factor;
+ }
+ } else {
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 temp0L;
+ drflac_uint32 temp1L;
+ drflac_uint32 temp2L;
+ drflac_uint32 temp3L;
+ drflac_uint32 temp0R;
+ drflac_uint32 temp1R;
+ drflac_uint32 temp2R;
+ drflac_uint32 temp3R;
+
+ drflac_uint32 mid0 = pInputSamples0U32[i*4+0] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid1 = pInputSamples0U32[i*4+1] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid2 = pInputSamples0U32[i*4+2] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 mid3 = pInputSamples0U32[i*4+3] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+
+ drflac_uint32 side0 = pInputSamples1U32[i*4+0] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side1 = pInputSamples1U32[i*4+1] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side2 = pInputSamples1U32[i*4+2] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ drflac_uint32 side3 = pInputSamples1U32[i*4+3] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid0 = (mid0 << 1) | (side0 & 0x01);
+ mid1 = (mid1 << 1) | (side1 & 0x01);
+ mid2 = (mid2 << 1) | (side2 & 0x01);
+ mid3 = (mid3 << 1) | (side3 & 0x01);
+
+ temp0L = (drflac_uint32)((drflac_int32)(mid0 + side0) >> 1);
+ temp1L = (drflac_uint32)((drflac_int32)(mid1 + side1) >> 1);
+ temp2L = (drflac_uint32)((drflac_int32)(mid2 + side2) >> 1);
+ temp3L = (drflac_uint32)((drflac_int32)(mid3 + side3) >> 1);
+
+ temp0R = (drflac_uint32)((drflac_int32)(mid0 - side0) >> 1);
+ temp1R = (drflac_uint32)((drflac_int32)(mid1 - side1) >> 1);
+ temp2R = (drflac_uint32)((drflac_int32)(mid2 - side2) >> 1);
+ temp3R = (drflac_uint32)((drflac_int32)(mid3 - side3) >> 1);
+
+ pOutputSamples[i*8+0] = (drflac_int32)temp0L * factor;
+ pOutputSamples[i*8+1] = (drflac_int32)temp0R * factor;
+ pOutputSamples[i*8+2] = (drflac_int32)temp1L * factor;
+ pOutputSamples[i*8+3] = (drflac_int32)temp1R * factor;
+ pOutputSamples[i*8+4] = (drflac_int32)temp2L * factor;
+ pOutputSamples[i*8+5] = (drflac_int32)temp2R * factor;
+ pOutputSamples[i*8+6] = (drflac_int32)temp3L * factor;
+ pOutputSamples[i*8+7] = (drflac_int32)temp3R * factor;
+ }
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid + side) >> 1) << unusedBitsPerSample) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)((drflac_uint32)((drflac_int32)(mid - side) >> 1) << unusedBitsPerSample) * factor;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_mid_side__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample - 8;
+ float factor;
+ __m128 factor128;
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor = 1.0f / 8388608.0f;
+ factor128 = _mm_set1_ps(factor);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i tempL;
+ __m128i tempR;
+ __m128 leftf;
+ __m128 rightf;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ tempL = _mm_srai_epi32(_mm_add_epi32(mid, side), 1);
+ tempR = _mm_srai_epi32(_mm_sub_epi32(mid, side), 1);
+
+ leftf = _mm_mul_ps(_mm_cvtepi32_ps(tempL), factor128);
+ rightf = _mm_mul_ps(_mm_cvtepi32_ps(tempR), factor128);
+
+ _mm_storeu_ps(pOutputSamples + i*8 + 0, _mm_unpacklo_ps(leftf, rightf));
+ _mm_storeu_ps(pOutputSamples + i*8 + 4, _mm_unpackhi_ps(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = ((drflac_int32)(mid + side) >> 1) * factor;
+ pOutputSamples[i*2+1] = ((drflac_int32)(mid - side) >> 1) * factor;
+ }
+ } else {
+ shift -= 1;
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i mid;
+ __m128i side;
+ __m128i tempL;
+ __m128i tempR;
+ __m128 leftf;
+ __m128 rightf;
+
+ mid = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ side = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ mid = _mm_or_si128(_mm_slli_epi32(mid, 1), _mm_and_si128(side, _mm_set1_epi32(0x01)));
+
+ tempL = _mm_slli_epi32(_mm_add_epi32(mid, side), shift);
+ tempR = _mm_slli_epi32(_mm_sub_epi32(mid, side), shift);
+
+ leftf = _mm_mul_ps(_mm_cvtepi32_ps(tempL), factor128);
+ rightf = _mm_mul_ps(_mm_cvtepi32_ps(tempR), factor128);
+
+ _mm_storeu_ps(pOutputSamples + i*8 + 0, _mm_unpacklo_ps(leftf, rightf));
+ _mm_storeu_ps(pOutputSamples + i*8 + 4, _mm_unpackhi_ps(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((mid + side) << shift) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)((mid - side) << shift) * factor;
+ }
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_mid_side__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift = unusedBitsPerSample - 8;
+ float factor;
+ float32x4_t factor4;
+ int32x4_t shift4;
+ int32x4_t wbps0_4; /* Wasted Bits Per Sample */
+ int32x4_t wbps1_4; /* Wasted Bits Per Sample */
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 24);
+
+ factor = 1.0f / 8388608.0f;
+ factor4 = vdupq_n_f32(factor);
+ wbps0_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample);
+ wbps1_4 = vdupq_n_s32(pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample);
+
+ if (shift == 0) {
+ for (i = 0; i < frameCount4; ++i) {
+ int32x4_t lefti;
+ int32x4_t righti;
+ float32x4_t leftf;
+ float32x4_t rightf;
+
+ uint32x4_t mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbps0_4);
+ uint32x4_t side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbps1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, vdupq_n_u32(1)));
+
+ lefti = vshrq_n_s32(vreinterpretq_s32_u32(vaddq_u32(mid, side)), 1);
+ righti = vshrq_n_s32(vreinterpretq_s32_u32(vsubq_u32(mid, side)), 1);
+
+ leftf = vmulq_f32(vcvtq_f32_s32(lefti), factor4);
+ rightf = vmulq_f32(vcvtq_f32_s32(righti), factor4);
+
+ drflac__vst2q_f32(pOutputSamples + i*8, vzipq_f32(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = ((drflac_int32)(mid + side) >> 1) * factor;
+ pOutputSamples[i*2+1] = ((drflac_int32)(mid - side) >> 1) * factor;
+ }
+ } else {
+ shift -= 1;
+ shift4 = vdupq_n_s32(shift);
+ for (i = 0; i < frameCount4; ++i) {
+ uint32x4_t mid;
+ uint32x4_t side;
+ int32x4_t lefti;
+ int32x4_t righti;
+ float32x4_t leftf;
+ float32x4_t rightf;
+
+ mid = vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), wbps0_4);
+ side = vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), wbps1_4);
+
+ mid = vorrq_u32(vshlq_n_u32(mid, 1), vandq_u32(side, vdupq_n_u32(1)));
+
+ lefti = vreinterpretq_s32_u32(vshlq_u32(vaddq_u32(mid, side), shift4));
+ righti = vreinterpretq_s32_u32(vshlq_u32(vsubq_u32(mid, side), shift4));
+
+ leftf = vmulq_f32(vcvtq_f32_s32(lefti), factor4);
+ rightf = vmulq_f32(vcvtq_f32_s32(righti), factor4);
+
+ drflac__vst2q_f32(pOutputSamples + i*8, vzipq_f32(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ drflac_uint32 mid = pInputSamples0U32[i] << pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 side = pInputSamples1U32[i] << pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+
+ mid = (mid << 1) | (side & 0x01);
+
+ pOutputSamples[i*2+0] = (drflac_int32)((mid + side) << shift) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)((mid - side) << shift) * factor;
+ }
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_mid_side(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_mid_side__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_mid_side__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_f32__decode_mid_side__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_f32__decode_mid_side__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+#if 0
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_independent_stereo__reference(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ for (drflac_uint64 i = 0; i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (float)((drflac_int32)((drflac_uint32)pInputSamples0[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample)) / 2147483648.0);
+ pOutputSamples[i*2+1] = (float)((drflac_int32)((drflac_uint32)pInputSamples1[i] << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample)) / 2147483648.0);
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_independent_stereo__scalar(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample;
+ drflac_uint32 shift1 = unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample;
+ float factor = 1 / 2147483648.0;
+
+ for (i = 0; i < frameCount4; ++i) {
+ drflac_uint32 tempL0 = pInputSamples0U32[i*4+0] << shift0;
+ drflac_uint32 tempL1 = pInputSamples0U32[i*4+1] << shift0;
+ drflac_uint32 tempL2 = pInputSamples0U32[i*4+2] << shift0;
+ drflac_uint32 tempL3 = pInputSamples0U32[i*4+3] << shift0;
+
+ drflac_uint32 tempR0 = pInputSamples1U32[i*4+0] << shift1;
+ drflac_uint32 tempR1 = pInputSamples1U32[i*4+1] << shift1;
+ drflac_uint32 tempR2 = pInputSamples1U32[i*4+2] << shift1;
+ drflac_uint32 tempR3 = pInputSamples1U32[i*4+3] << shift1;
+
+ pOutputSamples[i*8+0] = (drflac_int32)tempL0 * factor;
+ pOutputSamples[i*8+1] = (drflac_int32)tempR0 * factor;
+ pOutputSamples[i*8+2] = (drflac_int32)tempL1 * factor;
+ pOutputSamples[i*8+3] = (drflac_int32)tempR1 * factor;
+ pOutputSamples[i*8+4] = (drflac_int32)tempL2 * factor;
+ pOutputSamples[i*8+5] = (drflac_int32)tempR2 * factor;
+ pOutputSamples[i*8+6] = (drflac_int32)tempL3 * factor;
+ pOutputSamples[i*8+7] = (drflac_int32)tempR3 * factor;
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1) * factor;
+ }
+}
+
+#if defined(DRFLAC_SUPPORT_SSE2)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_independent_stereo__sse2(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+
+ float factor = 1.0f / 8388608.0f;
+ __m128 factor128 = _mm_set1_ps(factor);
+
+ for (i = 0; i < frameCount4; ++i) {
+ __m128i lefti;
+ __m128i righti;
+ __m128 leftf;
+ __m128 rightf;
+
+ lefti = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples0 + i), shift0);
+ righti = _mm_slli_epi32(_mm_loadu_si128((const __m128i*)pInputSamples1 + i), shift1);
+
+ leftf = _mm_mul_ps(_mm_cvtepi32_ps(lefti), factor128);
+ rightf = _mm_mul_ps(_mm_cvtepi32_ps(righti), factor128);
+
+ _mm_storeu_ps(pOutputSamples + i*8 + 0, _mm_unpacklo_ps(leftf, rightf));
+ _mm_storeu_ps(pOutputSamples + i*8 + 4, _mm_unpackhi_ps(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1) * factor;
+ }
+}
+#endif
+
+#if defined(DRFLAC_SUPPORT_NEON)
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_independent_stereo__neon(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+ drflac_uint64 i;
+ drflac_uint64 frameCount4 = frameCount >> 2;
+ const drflac_uint32* pInputSamples0U32 = (const drflac_uint32*)pInputSamples0;
+ const drflac_uint32* pInputSamples1U32 = (const drflac_uint32*)pInputSamples1;
+ drflac_uint32 shift0 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[0].wastedBitsPerSample) - 8;
+ drflac_uint32 shift1 = (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[1].wastedBitsPerSample) - 8;
+
+ float factor = 1.0f / 8388608.0f;
+ float32x4_t factor4 = vdupq_n_f32(factor);
+ int32x4_t shift0_4 = vdupq_n_s32(shift0);
+ int32x4_t shift1_4 = vdupq_n_s32(shift1);
+
+ for (i = 0; i < frameCount4; ++i) {
+ int32x4_t lefti;
+ int32x4_t righti;
+ float32x4_t leftf;
+ float32x4_t rightf;
+
+ lefti = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples0U32 + i*4), shift0_4));
+ righti = vreinterpretq_s32_u32(vshlq_u32(vld1q_u32(pInputSamples1U32 + i*4), shift1_4));
+
+ leftf = vmulq_f32(vcvtq_f32_s32(lefti), factor4);
+ rightf = vmulq_f32(vcvtq_f32_s32(righti), factor4);
+
+ drflac__vst2q_f32(pOutputSamples + i*8, vzipq_f32(leftf, rightf));
+ }
+
+ for (i = (frameCount4 << 2); i < frameCount; ++i) {
+ pOutputSamples[i*2+0] = (drflac_int32)(pInputSamples0U32[i] << shift0) * factor;
+ pOutputSamples[i*2+1] = (drflac_int32)(pInputSamples1U32[i] << shift1) * factor;
+ }
+}
+#endif
+
+static DRFLAC_INLINE void drflac_read_pcm_frames_f32__decode_independent_stereo(drflac* pFlac, drflac_uint64 frameCount, drflac_uint32 unusedBitsPerSample, const drflac_int32* pInputSamples0, const drflac_int32* pInputSamples1, float* pOutputSamples)
+{
+#if defined(DRFLAC_SUPPORT_SSE2)
+ if (drflac__gIsSSE2Supported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_independent_stereo__sse2(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#elif defined(DRFLAC_SUPPORT_NEON)
+ if (drflac__gIsNEONSupported && pFlac->bitsPerSample <= 24) {
+ drflac_read_pcm_frames_f32__decode_independent_stereo__neon(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+ } else
+#endif
+ {
+ /* Scalar fallback. */
+#if 0
+ drflac_read_pcm_frames_f32__decode_independent_stereo__reference(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#else
+ drflac_read_pcm_frames_f32__decode_independent_stereo__scalar(pFlac, frameCount, unusedBitsPerSample, pInputSamples0, pInputSamples1, pOutputSamples);
+#endif
+ }
+}
+
+DRFLAC_API drflac_uint64 drflac_read_pcm_frames_f32(drflac* pFlac, drflac_uint64 framesToRead, float* pBufferOut)
+{
+ drflac_uint64 framesRead;
+ drflac_uint32 unusedBitsPerSample;
+
+ if (pFlac == NULL || framesToRead == 0) {
+ return 0;
+ }
+
+ if (pBufferOut == NULL) {
+ return drflac__seek_forward_by_pcm_frames(pFlac, framesToRead);
+ }
+
+ DRFLAC_ASSERT(pFlac->bitsPerSample <= 32);
+ unusedBitsPerSample = 32 - pFlac->bitsPerSample;
+
+ framesRead = 0;
+ while (framesToRead > 0) {
+ /* If we've run out of samples in this frame, go to the next. */
+ if (pFlac->currentFLACFrame.pcmFramesRemaining == 0) {
+ if (!drflac__read_and_decode_next_flac_frame(pFlac)) {
+ break; /* Couldn't read the next frame, so just break from the loop and return. */
+ }
+ } else {
+ unsigned int channelCount = drflac__get_channel_count_from_channel_assignment(pFlac->currentFLACFrame.header.channelAssignment);
+ drflac_uint64 iFirstPCMFrame = pFlac->currentFLACFrame.header.blockSizeInPCMFrames - pFlac->currentFLACFrame.pcmFramesRemaining;
+ drflac_uint64 frameCountThisIteration = framesToRead;
+
+ if (frameCountThisIteration > pFlac->currentFLACFrame.pcmFramesRemaining) {
+ frameCountThisIteration = pFlac->currentFLACFrame.pcmFramesRemaining;
+ }
+
+ if (channelCount == 2) {
+ const drflac_int32* pDecodedSamples0 = pFlac->currentFLACFrame.subframes[0].pSamplesS32 + iFirstPCMFrame;
+ const drflac_int32* pDecodedSamples1 = pFlac->currentFLACFrame.subframes[1].pSamplesS32 + iFirstPCMFrame;
+
+ switch (pFlac->currentFLACFrame.header.channelAssignment)
+ {
+ case DRFLAC_CHANNEL_ASSIGNMENT_LEFT_SIDE:
+ {
+ drflac_read_pcm_frames_f32__decode_left_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+ {
+ drflac_read_pcm_frames_f32__decode_right_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_MID_SIDE:
+ {
+ drflac_read_pcm_frames_f32__decode_mid_side(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+
+ case DRFLAC_CHANNEL_ASSIGNMENT_INDEPENDENT:
+ default:
+ {
+ drflac_read_pcm_frames_f32__decode_independent_stereo(pFlac, frameCountThisIteration, unusedBitsPerSample, pDecodedSamples0, pDecodedSamples1, pBufferOut);
+ } break;
+ }
+ } else {
+ /* Generic interleaving. */
+ drflac_uint64 i;
+ for (i = 0; i < frameCountThisIteration; ++i) {
+ unsigned int j;
+ for (j = 0; j < channelCount; ++j) {
+ drflac_int32 sampleS32 = (drflac_int32)((drflac_uint32)(pFlac->currentFLACFrame.subframes[j].pSamplesS32[iFirstPCMFrame + i]) << (unusedBitsPerSample + pFlac->currentFLACFrame.subframes[j].wastedBitsPerSample));
+ pBufferOut[(i*channelCount)+j] = (float)(sampleS32 / 2147483648.0);
+ }
+ }
+ }
+
+ framesRead += frameCountThisIteration;
+ pBufferOut += frameCountThisIteration * channelCount;
+ framesToRead -= frameCountThisIteration;
+ pFlac->currentPCMFrame += frameCountThisIteration;
+ pFlac->currentFLACFrame.pcmFramesRemaining -= (unsigned int)frameCountThisIteration;
+ }
+ }
+
+ return framesRead;
+}
+
+
+DRFLAC_API drflac_bool32 drflac_seek_to_pcm_frame(drflac* pFlac, drflac_uint64 pcmFrameIndex)
+{
+ if (pFlac == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ /* Don't do anything if we're already on the seek point. */
+ if (pFlac->currentPCMFrame == pcmFrameIndex) {
+ return DRFLAC_TRUE;
+ }
+
+ /*
+ If we don't know where the first frame begins then we can't seek. This will happen when the STREAMINFO block was not present
+ when the decoder was opened.
+ */
+ if (pFlac->firstFLACFramePosInBytes == 0) {
+ return DRFLAC_FALSE;
+ }
+
+ if (pcmFrameIndex == 0) {
+ pFlac->currentPCMFrame = 0;
+ return drflac__seek_to_first_frame(pFlac);
+ } else {
+ drflac_bool32 wasSuccessful = DRFLAC_FALSE;
+
+ /* Clamp the sample to the end. */
+ if (pcmFrameIndex > pFlac->totalPCMFrameCount) {
+ pcmFrameIndex = pFlac->totalPCMFrameCount;
+ }
+
+ /* If the target sample and the current sample are in the same frame we just move the position forward. */
+ if (pcmFrameIndex > pFlac->currentPCMFrame) {
+ /* Forward. */
+ drflac_uint32 offset = (drflac_uint32)(pcmFrameIndex - pFlac->currentPCMFrame);
+ if (pFlac->currentFLACFrame.pcmFramesRemaining > offset) {
+ pFlac->currentFLACFrame.pcmFramesRemaining -= offset;
+ pFlac->currentPCMFrame = pcmFrameIndex;
+ return DRFLAC_TRUE;
+ }
+ } else {
+ /* Backward. */
+ drflac_uint32 offsetAbs = (drflac_uint32)(pFlac->currentPCMFrame - pcmFrameIndex);
+ drflac_uint32 currentFLACFramePCMFrameCount = pFlac->currentFLACFrame.header.blockSizeInPCMFrames;
+ drflac_uint32 currentFLACFramePCMFramesConsumed = currentFLACFramePCMFrameCount - pFlac->currentFLACFrame.pcmFramesRemaining;
+ if (currentFLACFramePCMFramesConsumed > offsetAbs) {
+ pFlac->currentFLACFrame.pcmFramesRemaining += offsetAbs;
+ pFlac->currentPCMFrame = pcmFrameIndex;
+ return DRFLAC_TRUE;
+ }
+ }
+
+ /*
+ Different techniques depending on encapsulation. Using the native FLAC seektable with Ogg encapsulation is a bit awkward so
+ we'll instead use Ogg's natural seeking facility.
+ */
+#ifndef DR_FLAC_NO_OGG
+ if (pFlac->container == drflac_container_ogg)
+ {
+ wasSuccessful = drflac_ogg__seek_to_pcm_frame(pFlac, pcmFrameIndex);
+ }
+ else
+#endif
+ {
+ /* First try seeking via the seek table. If this fails, fall back to a brute force seek which is much slower. */
+ if (/*!wasSuccessful && */!pFlac->_noSeekTableSeek) {
+ wasSuccessful = drflac__seek_to_pcm_frame__seek_table(pFlac, pcmFrameIndex);
+ }
+
+#if !defined(DR_FLAC_NO_CRC)
+ /* Fall back to binary search if seek table seeking fails. This requires the length of the stream to be known. */
+ if (!wasSuccessful && !pFlac->_noBinarySearchSeek && pFlac->totalPCMFrameCount > 0) {
+ wasSuccessful = drflac__seek_to_pcm_frame__binary_search(pFlac, pcmFrameIndex);
+ }
+#endif
+
+ /* Fall back to brute force if all else fails. */
+ if (!wasSuccessful && !pFlac->_noBruteForceSeek) {
+ wasSuccessful = drflac__seek_to_pcm_frame__brute_force(pFlac, pcmFrameIndex);
+ }
+ }
+
+ pFlac->currentPCMFrame = pcmFrameIndex;
+ return wasSuccessful;
+ }
+}
+
+
+
+/* High Level APIs */
+
+#if defined(SIZE_MAX)
+ #define DRFLAC_SIZE_MAX SIZE_MAX
+#else
+ #if defined(DRFLAC_64BIT)
+ #define DRFLAC_SIZE_MAX ((drflac_uint64)0xFFFFFFFFFFFFFFFF)
+ #else
+ #define DRFLAC_SIZE_MAX 0xFFFFFFFF
+ #endif
+#endif
+
+
+/* Using a macro as the definition of the drflac__full_decode_and_close_*() API family. Sue me. */
+#define DRFLAC_DEFINE_FULL_READ_AND_CLOSE(extension, type) \
+static type* drflac__full_read_and_close_ ## extension (drflac* pFlac, unsigned int* channelsOut, unsigned int* sampleRateOut, drflac_uint64* totalPCMFrameCountOut)\
+{ \
+ type* pSampleData = NULL; \
+ drflac_uint64 totalPCMFrameCount; \
+ \
+ DRFLAC_ASSERT(pFlac != NULL); \
+ \
+ totalPCMFrameCount = pFlac->totalPCMFrameCount; \
+ \
+ if (totalPCMFrameCount == 0) { \
+ type buffer[4096]; \
+ drflac_uint64 pcmFramesRead; \
+ size_t sampleDataBufferSize = sizeof(buffer); \
+ \
+ pSampleData = (type*)drflac__malloc_from_callbacks(sampleDataBufferSize, &pFlac->allocationCallbacks); \
+ if (pSampleData == NULL) { \
+ goto on_error; \
+ } \
+ \
+ while ((pcmFramesRead = (drflac_uint64)drflac_read_pcm_frames_##extension(pFlac, sizeof(buffer)/sizeof(buffer[0])/pFlac->channels, buffer)) > 0) { \
+ if (((totalPCMFrameCount + pcmFramesRead) * pFlac->channels * sizeof(type)) > sampleDataBufferSize) { \
+ type* pNewSampleData; \
+ size_t newSampleDataBufferSize; \
+ \
+ newSampleDataBufferSize = sampleDataBufferSize * 2; \
+ pNewSampleData = (type*)drflac__realloc_from_callbacks(pSampleData, newSampleDataBufferSize, sampleDataBufferSize, &pFlac->allocationCallbacks); \
+ if (pNewSampleData == NULL) { \
+ drflac__free_from_callbacks(pSampleData, &pFlac->allocationCallbacks); \
+ goto on_error; \
+ } \
+ \
+ sampleDataBufferSize = newSampleDataBufferSize; \
+ pSampleData = pNewSampleData; \
+ } \
+ \
+ DRFLAC_COPY_MEMORY(pSampleData + (totalPCMFrameCount*pFlac->channels), buffer, (size_t)(pcmFramesRead*pFlac->channels*sizeof(type))); \
+ totalPCMFrameCount += pcmFramesRead; \
+ } \
+ \
+ /* At this point everything should be decoded, but we just want to fill the unused part buffer with silence - need to \
+ protect those ears from random noise! */ \
+ DRFLAC_ZERO_MEMORY(pSampleData + (totalPCMFrameCount*pFlac->channels), (size_t)(sampleDataBufferSize - totalPCMFrameCount*pFlac->channels*sizeof(type))); \
+ } else { \
+ drflac_uint64 dataSize = totalPCMFrameCount*pFlac->channels*sizeof(type); \
+ if (dataSize > DRFLAC_SIZE_MAX) { \
+ goto on_error; /* The decoded data is too big. */ \
+ } \
+ \
+ pSampleData = (type*)drflac__malloc_from_callbacks((size_t)dataSize, &pFlac->allocationCallbacks); /* <-- Safe cast as per the check above. */ \
+ if (pSampleData == NULL) { \
+ goto on_error; \
+ } \
+ \
+ totalPCMFrameCount = drflac_read_pcm_frames_##extension(pFlac, pFlac->totalPCMFrameCount, pSampleData); \
+ } \
+ \
+ if (sampleRateOut) *sampleRateOut = pFlac->sampleRate; \
+ if (channelsOut) *channelsOut = pFlac->channels; \
+ if (totalPCMFrameCountOut) *totalPCMFrameCountOut = totalPCMFrameCount; \
+ \
+ drflac_close(pFlac); \
+ return pSampleData; \
+ \
+on_error: \
+ drflac_close(pFlac); \
+ return NULL; \
+}
+
+DRFLAC_DEFINE_FULL_READ_AND_CLOSE(s32, drflac_int32)
+DRFLAC_DEFINE_FULL_READ_AND_CLOSE(s16, drflac_int16)
+DRFLAC_DEFINE_FULL_READ_AND_CLOSE(f32, float)
+
+DRFLAC_API drflac_int32* drflac_open_and_read_pcm_frames_s32(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drflac_uint64* totalPCMFrameCountOut, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (channelsOut) {
+ *channelsOut = 0;
+ }
+ if (sampleRateOut) {
+ *sampleRateOut = 0;
+ }
+ if (totalPCMFrameCountOut) {
+ *totalPCMFrameCountOut = 0;
+ }
+
+ pFlac = drflac_open(onRead, onSeek, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s32(pFlac, channelsOut, sampleRateOut, totalPCMFrameCountOut);
+}
+
+DRFLAC_API drflac_int16* drflac_open_and_read_pcm_frames_s16(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drflac_uint64* totalPCMFrameCountOut, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (channelsOut) {
+ *channelsOut = 0;
+ }
+ if (sampleRateOut) {
+ *sampleRateOut = 0;
+ }
+ if (totalPCMFrameCountOut) {
+ *totalPCMFrameCountOut = 0;
+ }
+
+ pFlac = drflac_open(onRead, onSeek, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s16(pFlac, channelsOut, sampleRateOut, totalPCMFrameCountOut);
+}
+
+DRFLAC_API float* drflac_open_and_read_pcm_frames_f32(drflac_read_proc onRead, drflac_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drflac_uint64* totalPCMFrameCountOut, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (channelsOut) {
+ *channelsOut = 0;
+ }
+ if (sampleRateOut) {
+ *sampleRateOut = 0;
+ }
+ if (totalPCMFrameCountOut) {
+ *totalPCMFrameCountOut = 0;
+ }
+
+ pFlac = drflac_open(onRead, onSeek, pUserData, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_f32(pFlac, channelsOut, sampleRateOut, totalPCMFrameCountOut);
+}
+
+#ifndef DR_FLAC_NO_STDIO
+DRFLAC_API drflac_int32* drflac_open_file_and_read_pcm_frames_s32(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_file(filename, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s32(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+
+DRFLAC_API drflac_int16* drflac_open_file_and_read_pcm_frames_s16(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_file(filename, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s16(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+
+DRFLAC_API float* drflac_open_file_and_read_pcm_frames_f32(const char* filename, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_file(filename, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_f32(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+#endif
+
+DRFLAC_API drflac_int32* drflac_open_memory_and_read_pcm_frames_s32(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_memory(data, dataSize, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s32(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+
+DRFLAC_API drflac_int16* drflac_open_memory_and_read_pcm_frames_s16(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_memory(data, dataSize, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_s16(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+
+DRFLAC_API float* drflac_open_memory_and_read_pcm_frames_f32(const void* data, size_t dataSize, unsigned int* channels, unsigned int* sampleRate, drflac_uint64* totalPCMFrameCount, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ drflac* pFlac;
+
+ if (sampleRate) {
+ *sampleRate = 0;
+ }
+ if (channels) {
+ *channels = 0;
+ }
+ if (totalPCMFrameCount) {
+ *totalPCMFrameCount = 0;
+ }
+
+ pFlac = drflac_open_memory(data, dataSize, pAllocationCallbacks);
+ if (pFlac == NULL) {
+ return NULL;
+ }
+
+ return drflac__full_read_and_close_f32(pFlac, channels, sampleRate, totalPCMFrameCount);
+}
+
+
+DRFLAC_API void drflac_free(void* p, const drflac_allocation_callbacks* pAllocationCallbacks)
+{
+ if (pAllocationCallbacks != NULL) {
+ drflac__free_from_callbacks(p, pAllocationCallbacks);
+ } else {
+ drflac__free_default(p, NULL);
+ }
+}
+
+
+
+
+DRFLAC_API void drflac_init_vorbis_comment_iterator(drflac_vorbis_comment_iterator* pIter, drflac_uint32 commentCount, const void* pComments)
+{
+ if (pIter == NULL) {
+ return;
+ }
+
+ pIter->countRemaining = commentCount;
+ pIter->pRunningData = (const char*)pComments;
+}
+
+DRFLAC_API const char* drflac_next_vorbis_comment(drflac_vorbis_comment_iterator* pIter, drflac_uint32* pCommentLengthOut)
+{
+ drflac_int32 length;
+ const char* pComment;
+
+ /* Safety. */
+ if (pCommentLengthOut) {
+ *pCommentLengthOut = 0;
+ }
+
+ if (pIter == NULL || pIter->countRemaining == 0 || pIter->pRunningData == NULL) {
+ return NULL;
+ }
+
+ length = drflac__le2host_32(*(const drflac_uint32*)pIter->pRunningData);
+ pIter->pRunningData += 4;
+
+ pComment = pIter->pRunningData;
+ pIter->pRunningData += length;
+ pIter->countRemaining -= 1;
+
+ if (pCommentLengthOut) {
+ *pCommentLengthOut = length;
+ }
+
+ return pComment;
+}
+
+
+
+
+DRFLAC_API void drflac_init_cuesheet_track_iterator(drflac_cuesheet_track_iterator* pIter, drflac_uint32 trackCount, const void* pTrackData)
+{
+ if (pIter == NULL) {
+ return;
+ }
+
+ pIter->countRemaining = trackCount;
+ pIter->pRunningData = (const char*)pTrackData;
+}
+
+DRFLAC_API drflac_bool32 drflac_next_cuesheet_track(drflac_cuesheet_track_iterator* pIter, drflac_cuesheet_track* pCuesheetTrack)
+{
+ drflac_cuesheet_track cuesheetTrack;
+ const char* pRunningData;
+ drflac_uint64 offsetHi;
+ drflac_uint64 offsetLo;
+
+ if (pIter == NULL || pIter->countRemaining == 0 || pIter->pRunningData == NULL) {
+ return DRFLAC_FALSE;
+ }
+
+ pRunningData = pIter->pRunningData;
+
+ offsetHi = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ offsetLo = drflac__be2host_32(*(const drflac_uint32*)pRunningData); pRunningData += 4;
+ cuesheetTrack.offset = offsetLo | (offsetHi << 32);
+ cuesheetTrack.trackNumber = pRunningData[0]; pRunningData += 1;
+ DRFLAC_COPY_MEMORY(cuesheetTrack.ISRC, pRunningData, sizeof(cuesheetTrack.ISRC)); pRunningData += 12;
+ cuesheetTrack.isAudio = (pRunningData[0] & 0x80) != 0;
+ cuesheetTrack.preEmphasis = (pRunningData[0] & 0x40) != 0; pRunningData += 14;
+ cuesheetTrack.indexCount = pRunningData[0]; pRunningData += 1;
+ cuesheetTrack.pIndexPoints = (const drflac_cuesheet_track_index*)pRunningData; pRunningData += cuesheetTrack.indexCount * sizeof(drflac_cuesheet_track_index);
+
+ pIter->pRunningData = pRunningData;
+ pIter->countRemaining -= 1;
+
+ if (pCuesheetTrack) {
+ *pCuesheetTrack = cuesheetTrack;
+ }
+
+ return DRFLAC_TRUE;
+}
+
+#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
+ #pragma GCC diagnostic pop
+#endif
+#endif /* dr_flac_c */
+#endif /* DR_FLAC_IMPLEMENTATION */
+
+
+/*
+REVISION HISTORY
+================
+v0.12.28 - 2021-02-21
+ - Fix a warning due to referencing _MSC_VER when it is undefined.
+
+v0.12.27 - 2021-01-31
+ - Fix a static analysis warning.
+
+v0.12.26 - 2021-01-17
+ - Fix a compilation warning due to _BSD_SOURCE being deprecated.
+
+v0.12.25 - 2020-12-26
+ - Update documentation.
+
+v0.12.24 - 2020-11-29
+ - Fix ARM64/NEON detection when compiling with MSVC.
+
+v0.12.23 - 2020-11-21
+ - Fix compilation with OpenWatcom.
+
+v0.12.22 - 2020-11-01
+ - Fix an error with the previous release.
+
+v0.12.21 - 2020-11-01
+ - Fix a possible deadlock when seeking.
+ - Improve compiler support for older versions of GCC.
+
+v0.12.20 - 2020-09-08
+ - Fix a compilation error on older compilers.
+
+v0.12.19 - 2020-08-30
+ - Fix a bug due to an undefined 32-bit shift.
+
+v0.12.18 - 2020-08-14
+ - Fix a crash when compiling with clang-cl.
+
+v0.12.17 - 2020-08-02
+ - Simplify sized types.
+
+v0.12.16 - 2020-07-25
+ - Fix a compilation warning.
+
+v0.12.15 - 2020-07-06
+ - Check for negative LPC shifts and return an error.
+
+v0.12.14 - 2020-06-23
+ - Add include guard for the implementation section.
+
+v0.12.13 - 2020-05-16
+ - Add compile-time and run-time version querying.
+ - DRFLAC_VERSION_MINOR
+ - DRFLAC_VERSION_MAJOR
+ - DRFLAC_VERSION_REVISION
+ - DRFLAC_VERSION_STRING
+ - drflac_version()
+ - drflac_version_string()
+
+v0.12.12 - 2020-04-30
+ - Fix compilation errors with VC6.
+
+v0.12.11 - 2020-04-19
+ - Fix some pedantic warnings.
+ - Fix some undefined behaviour warnings.
+
+v0.12.10 - 2020-04-10
+ - Fix some bugs when trying to seek with an invalid seek table.
+
+v0.12.9 - 2020-04-05
+ - Fix warnings.
+
+v0.12.8 - 2020-04-04
+ - Add drflac_open_file_w() and drflac_open_file_with_metadata_w().
+ - Fix some static analysis warnings.
+ - Minor documentation updates.
+
+v0.12.7 - 2020-03-14
+ - Fix compilation errors with VC6.
+
+v0.12.6 - 2020-03-07
+ - Fix compilation error with Visual Studio .NET 2003.
+
+v0.12.5 - 2020-01-30
+ - Silence some static analysis warnings.
+
+v0.12.4 - 2020-01-29
+ - Silence some static analysis warnings.
+
+v0.12.3 - 2019-12-02
+ - Fix some warnings when compiling with GCC and the -Og flag.
+ - Fix a crash in out-of-memory situations.
+ - Fix potential integer overflow bug.
+ - Fix some static analysis warnings.
+ - Fix a possible crash when using custom memory allocators without a custom realloc() implementation.
+ - Fix a bug with binary search seeking where the bits per sample is not a multiple of 8.
+
+v0.12.2 - 2019-10-07
+ - Internal code clean up.
+
+v0.12.1 - 2019-09-29
+ - Fix some Clang Static Analyzer warnings.
+ - Fix an unused variable warning.
+
+v0.12.0 - 2019-09-23
+ - API CHANGE: Add support for user defined memory allocation routines. This system allows the program to specify their own memory allocation
+ routines with a user data pointer for client-specific contextual data. This adds an extra parameter to the end of the following APIs:
+ - drflac_open()
+ - drflac_open_relaxed()
+ - drflac_open_with_metadata()
+ - drflac_open_with_metadata_relaxed()
+ - drflac_open_file()
+ - drflac_open_file_with_metadata()
+ - drflac_open_memory()
+ - drflac_open_memory_with_metadata()
+ - drflac_open_and_read_pcm_frames_s32()
+ - drflac_open_and_read_pcm_frames_s16()
+ - drflac_open_and_read_pcm_frames_f32()
+ - drflac_open_file_and_read_pcm_frames_s32()
+ - drflac_open_file_and_read_pcm_frames_s16()
+ - drflac_open_file_and_read_pcm_frames_f32()
+ - drflac_open_memory_and_read_pcm_frames_s32()
+ - drflac_open_memory_and_read_pcm_frames_s16()
+ - drflac_open_memory_and_read_pcm_frames_f32()
+ Set this extra parameter to NULL to use defaults which is the same as the previous behaviour. Setting this NULL will use
+ DRFLAC_MALLOC, DRFLAC_REALLOC and DRFLAC_FREE.
+ - Remove deprecated APIs:
+ - drflac_read_s32()
+ - drflac_read_s16()
+ - drflac_read_f32()
+ - drflac_seek_to_sample()
+ - drflac_open_and_decode_s32()
+ - drflac_open_and_decode_s16()
+ - drflac_open_and_decode_f32()
+ - drflac_open_and_decode_file_s32()
+ - drflac_open_and_decode_file_s16()
+ - drflac_open_and_decode_file_f32()
+ - drflac_open_and_decode_memory_s32()
+ - drflac_open_and_decode_memory_s16()
+ - drflac_open_and_decode_memory_f32()
+ - Remove drflac.totalSampleCount which is now replaced with drflac.totalPCMFrameCount. You can emulate drflac.totalSampleCount
+ by doing pFlac->totalPCMFrameCount*pFlac->channels.
+ - Rename drflac.currentFrame to drflac.currentFLACFrame to remove ambiguity with PCM frames.
+ - Fix errors when seeking to the end of a stream.
+ - Optimizations to seeking.
+ - SSE improvements and optimizations.
+ - ARM NEON optimizations.
+ - Optimizations to drflac_read_pcm_frames_s16().
+ - Optimizations to drflac_read_pcm_frames_s32().
+
+v0.11.10 - 2019-06-26
+ - Fix a compiler error.
+
+v0.11.9 - 2019-06-16
+ - Silence some ThreadSanitizer warnings.
+
+v0.11.8 - 2019-05-21
+ - Fix warnings.
+
+v0.11.7 - 2019-05-06
+ - C89 fixes.
+
+v0.11.6 - 2019-05-05
+ - Add support for C89.
+ - Fix a compiler warning when CRC is disabled.
+ - Change license to choice of public domain or MIT-0.
+
+v0.11.5 - 2019-04-19
+ - Fix a compiler error with GCC.
+
+v0.11.4 - 2019-04-17
+ - Fix some warnings with GCC when compiling with -std=c99.
+
+v0.11.3 - 2019-04-07
+ - Silence warnings with GCC.
+
+v0.11.2 - 2019-03-10
+ - Fix a warning.
+
+v0.11.1 - 2019-02-17
+ - Fix a potential bug with seeking.
+
+v0.11.0 - 2018-12-16
+ - API CHANGE: Deprecated drflac_read_s32(), drflac_read_s16() and drflac_read_f32() and replaced them with
+ drflac_read_pcm_frames_s32(), drflac_read_pcm_frames_s16() and drflac_read_pcm_frames_f32(). The new APIs take
+ and return PCM frame counts instead of sample counts. To upgrade you will need to change the input count by
+ dividing it by the channel count, and then do the same with the return value.
+ - API_CHANGE: Deprecated drflac_seek_to_sample() and replaced with drflac_seek_to_pcm_frame(). Same rules as
+ the changes to drflac_read_*() apply.
+ - API CHANGE: Deprecated drflac_open_and_decode_*() and replaced with drflac_open_*_and_read_*(). Same rules as
+ the changes to drflac_read_*() apply.
+ - Optimizations.
+
+v0.10.0 - 2018-09-11
+ - Remove the DR_FLAC_NO_WIN32_IO option and the Win32 file IO functionality. If you need to use Win32 file IO you
+ need to do it yourself via the callback API.
+ - Fix the clang build.
+ - Fix undefined behavior.
+ - Fix errors with CUESHEET metdata blocks.
+ - Add an API for iterating over each cuesheet track in the CUESHEET metadata block. This works the same way as the
+ Vorbis comment API.
+ - Other miscellaneous bug fixes, mostly relating to invalid FLAC streams.
+ - Minor optimizations.
+
+v0.9.11 - 2018-08-29
+ - Fix a bug with sample reconstruction.
+
+v0.9.10 - 2018-08-07
+ - Improve 64-bit detection.
+
+v0.9.9 - 2018-08-05
+ - Fix C++ build on older versions of GCC.
+
+v0.9.8 - 2018-07-24
+ - Fix compilation errors.
+
+v0.9.7 - 2018-07-05
+ - Fix a warning.
+
+v0.9.6 - 2018-06-29
+ - Fix some typos.
+
+v0.9.5 - 2018-06-23
+ - Fix some warnings.
+
+v0.9.4 - 2018-06-14
+ - Optimizations to seeking.
+ - Clean up.
+
+v0.9.3 - 2018-05-22
+ - Bug fix.
+
+v0.9.2 - 2018-05-12
+ - Fix a compilation error due to a missing break statement.
+
+v0.9.1 - 2018-04-29
+ - Fix compilation error with Clang.
+
+v0.9 - 2018-04-24
+ - Fix Clang build.
+ - Start using major.minor.revision versioning.
+
+v0.8g - 2018-04-19
+ - Fix build on non-x86/x64 architectures.
+
+v0.8f - 2018-02-02
+ - Stop pretending to support changing rate/channels mid stream.
+
+v0.8e - 2018-02-01
+ - Fix a crash when the block size of a frame is larger than the maximum block size defined by the FLAC stream.
+ - Fix a crash the the Rice partition order is invalid.
+
+v0.8d - 2017-09-22
+ - Add support for decoding streams with ID3 tags. ID3 tags are just skipped.
+
+v0.8c - 2017-09-07
+ - Fix warning on non-x86/x64 architectures.
+
+v0.8b - 2017-08-19
+ - Fix build on non-x86/x64 architectures.
+
+v0.8a - 2017-08-13
+ - A small optimization for the Clang build.
+
+v0.8 - 2017-08-12
+ - API CHANGE: Rename dr_* types to drflac_*.
+ - Optimizations. This brings dr_flac back to about the same class of efficiency as the reference implementation.
+ - Add support for custom implementations of malloc(), realloc(), etc.
+ - Add CRC checking to Ogg encapsulated streams.
+ - Fix VC++ 6 build. This is only for the C++ compiler. The C compiler is not currently supported.
+ - Bug fixes.
+
+v0.7 - 2017-07-23
+ - Add support for opening a stream without a header block. To do this, use drflac_open_relaxed() / drflac_open_with_metadata_relaxed().
+
+v0.6 - 2017-07-22
+ - Add support for recovering from invalid frames. With this change, dr_flac will simply skip over invalid frames as if they
+ never existed. Frames are checked against their sync code, the CRC-8 of the frame header and the CRC-16 of the whole frame.
+
+v0.5 - 2017-07-16
+ - Fix typos.
+ - Change drflac_bool* types to unsigned.
+ - Add CRC checking. This makes dr_flac slower, but can be disabled with #define DR_FLAC_NO_CRC.
+
+v0.4f - 2017-03-10
+ - Fix a couple of bugs with the bitstreaming code.
+
+v0.4e - 2017-02-17
+ - Fix some warnings.
+
+v0.4d - 2016-12-26
+ - Add support for 32-bit floating-point PCM decoding.
+ - Use drflac_int* and drflac_uint* sized types to improve compiler support.
+ - Minor improvements to documentation.
+
+v0.4c - 2016-12-26
+ - Add support for signed 16-bit integer PCM decoding.
+
+v0.4b - 2016-10-23
+ - A minor change to drflac_bool8 and drflac_bool32 types.
+
+v0.4a - 2016-10-11
+ - Rename drBool32 to drflac_bool32 for styling consistency.
+
+v0.4 - 2016-09-29
+ - API/ABI CHANGE: Use fixed size 32-bit booleans instead of the built-in bool type.
+ - API CHANGE: Rename drflac_open_and_decode*() to drflac_open_and_decode*_s32().
+ - API CHANGE: Swap the order of "channels" and "sampleRate" parameters in drflac_open_and_decode*(). Rationale for this is to
+ keep it consistent with drflac_audio.
+
+v0.3f - 2016-09-21
+ - Fix a warning with GCC.
+
+v0.3e - 2016-09-18
+ - Fixed a bug where GCC 4.3+ was not getting properly identified.
+ - Fixed a few typos.
+ - Changed date formats to ISO 8601 (YYYY-MM-DD).
+
+v0.3d - 2016-06-11
+ - Minor clean up.
+
+v0.3c - 2016-05-28
+ - Fixed compilation error.
+
+v0.3b - 2016-05-16
+ - Fixed Linux/GCC build.
+ - Updated documentation.
+
+v0.3a - 2016-05-15
+ - Minor fixes to documentation.
+
+v0.3 - 2016-05-11
+ - Optimizations. Now at about parity with the reference implementation on 32-bit builds.
+ - Lots of clean up.
+
+v0.2b - 2016-05-10
+ - Bug fixes.
+
+v0.2a - 2016-05-10
+ - Made drflac_open_and_decode() more robust.
+ - Removed an unused debugging variable
+
+v0.2 - 2016-05-09
+ - Added support for Ogg encapsulation.
+ - API CHANGE. Have the onSeek callback take a third argument which specifies whether or not the seek
+ should be relative to the start or the current position. Also changes the seeking rules such that
+ seeking offsets will never be negative.
+ - Have drflac_open_and_decode() fail gracefully if the stream has an unknown total sample count.
+
+v0.1b - 2016-05-07
+ - Properly close the file handle in drflac_open_file() and family when the decoder fails to initialize.
+ - Removed a stale comment.
+
+v0.1a - 2016-05-05
+ - Minor formatting changes.
+ - Fixed a warning on the GCC build.
+
+v0.1 - 2016-05-03
+ - Initial versioned release.
+*/
+
+/*
+This software is available as a choice of the following licenses. Choose
+whichever you prefer.
+
+===============================================================================
+ALTERNATIVE 1 - Public Domain (www.unlicense.org)
+===============================================================================
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
+
+===============================================================================
+ALTERNATIVE 2 - MIT No Attribution
+===============================================================================
+Copyright 2020 David Reid
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
#define __CDROM_H__
#include <stdint.h>
-
+#include <libchdr/chdconfig.h>
/***************************************************************************
CONSTANTS
***************************************************************************/
/* tracks are padded to a multiple of this many frames */
-extern const uint32_t CD_TRACK_PADDING;
-
+#define CD_TRACK_PADDING (4)
#define CD_MAX_TRACKS (99) /* AFAIK the theoretical limit */
#define CD_MAX_SECTOR_DATA (2352)
#define CD_MAX_SUBCODE_DATA (96)
FUNCTION PROTOTYPES
***************************************************************************/
+#ifdef WANT_RAW_DATA_SECTOR
/* ECC utilities */
int ecc_verify(const uint8_t *sector);
void ecc_generate(uint8_t *sector);
void ecc_clear(uint8_t *sector);
+#endif
extern "C" {
#endif
-#include "coretypes.h"
-
+#include <libchdr/coretypes.h>
+#include <libchdr/chdconfig.h>
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
+#ifdef _MSC_VER
+#ifdef CHD_DLL
+#ifdef CHD_DLL_EXPORTS
+#define CHD_EXPORT __declspec(dllexport)
+#else
+#define CHD_EXPORT __declspec(dllimport)
+#endif
+#else
+#define CHD_EXPORT
+#endif
+#else
+#define CHD_EXPORT __attribute__ ((visibility("default")))
+#endif
/* ----- CHD file management ----- */
/* chd_error chd_create_file(core_file *file, UINT64 logicalbytes, UINT32 hunkbytes, UINT32 compression, chd_file *parent); */
/* open an existing CHD file */
-chd_error chd_open(const char *filename, int mode, chd_file *parent, chd_file **chd);
+CHD_EXPORT chd_error chd_open_file(core_file *file, int mode, chd_file *parent, chd_file **chd);
+CHD_EXPORT chd_error chd_open(const char *filename, int mode, chd_file *parent, chd_file **chd);
/* precache underlying file */
-chd_error chd_precache(chd_file *chd);
+CHD_EXPORT chd_error chd_precache(chd_file *chd);
/* close a CHD file */
-void chd_close(chd_file *chd);
+CHD_EXPORT void chd_close(chd_file *chd);
/* return the associated core_file */
-core_file *chd_core_file(chd_file *chd);
+CHD_EXPORT core_file *chd_core_file(chd_file *chd);
/* return an error string for the given CHD error */
-const char *chd_error_string(chd_error err);
+CHD_EXPORT const char *chd_error_string(chd_error err);
/* ----- CHD header management ----- */
/* return a pointer to the extracted CHD header data */
-const chd_header *chd_get_header(chd_file *chd);
+CHD_EXPORT const chd_header *chd_get_header(chd_file *chd);
/* ----- core data read/write ----- */
/* read one hunk from the CHD file */
-chd_error chd_read(chd_file *chd, UINT32 hunknum, void *buffer);
+CHD_EXPORT chd_error chd_read(chd_file *chd, UINT32 hunknum, void *buffer);
/* ----- metadata management ----- */
/* get indexed metadata of a particular sort */
-chd_error chd_get_metadata(chd_file *chd, UINT32 searchtag, UINT32 searchindex, void *output, UINT32 outputlen, UINT32 *resultlen, UINT32 *resulttag, UINT8 *resultflags);
+CHD_EXPORT chd_error chd_get_metadata(chd_file *chd, UINT32 searchtag, UINT32 searchindex, void *output, UINT32 outputlen, UINT32 *resultlen, UINT32 *resulttag, UINT8 *resultflags);
/* ----- codec interfaces ----- */
/* set internal codec parameters */
-chd_error chd_codec_config(chd_file *chd, int param, void *config);
+CHD_EXPORT chd_error chd_codec_config(chd_file *chd, int param, void *config);
/* return a string description of a codec */
-const char *chd_get_codec_name(UINT32 codec);
+CHD_EXPORT const char *chd_get_codec_name(UINT32 codec);
#ifdef __cplusplus
}
--- /dev/null
+#ifndef __CHDCONFIG_H__
+#define __CHDCONFIG_H__
+
+/* Configure CHDR features here */
+#define WANT_RAW_DATA_SECTOR 1
+#define WANT_SUBCODE 1
+#define NEED_CACHE_HUNK 1
+#define VERIFY_BLOCK_CRC 1
+
+#endif
--- /dev/null
+#ifndef __CORETYPES_H__
+#define __CORETYPES_H__
+
+#include <stdint.h>
+#include <stdio.h>
+
+#ifdef USE_LIBRETRO_VFS
+#include <streams/file_stream_transforms.h>
+#endif
+
+#define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
+
+typedef uint64_t UINT64;
+typedef uint32_t UINT32;
+typedef uint16_t UINT16;
+typedef uint8_t UINT8;
+
+typedef int64_t INT64;
+typedef int32_t INT32;
+typedef int16_t INT16;
+typedef int8_t INT8;
+
+#define core_file FILE
+#define core_fopen(file) fopen(file, "rb")
+#if defined(__WIN32__) || defined(_WIN32) || defined(WIN32) || defined(__WIN64__)
+ #define core_fseek _fseeki64
+ #define core_ftell _ftelli64
+#elif defined(_LARGEFILE_SOURCE) && defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64
+ #define core_fseek fseeko64
+ #define core_ftell ftello64
+#else
+ #define core_fseek fseeko
+ #define core_ftell ftello
+#endif
+#define core_fread(fc, buff, len) fread(buff, 1, len, fc)
+#define core_fclose fclose
+
+static UINT64 core_fsize(core_file *f)
+{
+ UINT64 rv;
+ UINT64 p = core_ftell(f);
+ core_fseek(f, 0, SEEK_END);
+ rv = core_ftell(f);
+ core_fseek(f, p, SEEK_SET);
+ return rv;
+}
+
+#endif
#define __FLAC_H__
#include <stdint.h>
-#include <FLAC/all.h>
/***************************************************************************
* TYPE DEFINITIONS
typedef struct _flac_decoder flac_decoder;
struct _flac_decoder {
/* output state */
- FLAC__StreamDecoder* decoder; /* actual encoder */
+ void * decoder; /* actual encoder */
uint32_t sample_rate; /* decoded sample rate */
uint8_t channels; /* decoded number of channels */
uint8_t bits_per_sample; /* decoded bits per sample */
uint32_t compressed_offset; /* current offset in compressed data */
- const FLAC__byte * compressed_start; /* start of compressed data */
+ const uint8_t * compressed_start; /* start of compressed data */
uint32_t compressed_length; /* length of compressed data */
- const FLAC__byte * compressed2_start; /* start of compressed data */
+ const uint8_t * compressed2_start; /* start of compressed data */
uint32_t compressed2_length; /* length of compressed data */
int16_t * uncompressed_start[8]; /* pointer to start of uncompressed data (up to 8 streams) */
uint32_t uncompressed_offset; /* current position in uncompressed data */
/* ======================> flac_decoder */
-void flac_decoder_init(flac_decoder* decoder);
+int flac_decoder_init(flac_decoder* decoder);
void flac_decoder_free(flac_decoder* decoder);
int flac_decoder_reset(flac_decoder* decoder, uint32_t sample_rate, uint8_t num_channels, uint32_t block_size, const void *buffer, uint32_t length);
int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian);
#ifndef __HUFFMAN_H__
#define __HUFFMAN_H__
-#include "bitstream.h"
+#include <libchdr/bitstream.h>
/***************************************************************************
/* ======================> huffman_decoder */
struct huffman_decoder* create_huffman_decoder(int numcodes, int maxbits);
+void delete_huffman_decoder(struct huffman_decoder* decoder);
/* single item operations */
uint32_t huffman_decode_one(struct huffman_decoder* decoder, struct bitstream* bitbuf);
***************************************************************************/
-#include "bitstream.h"
#include <stdlib.h>
+#include <libchdr/bitstream.h>
/***************************************************************************
* INLINE FUNCTIONS
schemes will differ after track 1!
***************************************************************************/
-
#include <assert.h>
#include <string.h>
-#include "cdrom.h"
+#include <libchdr/cdrom.h>
+
+#ifdef WANT_RAW_DATA_SECTOR
/***************************************************************************
DEBUGGING
memset(§or[ECC_P_OFFSET], 0, 2 * ECC_P_NUM_BYTES);
memset(§or[ECC_Q_OFFSET], 0, 2 * ECC_Q_NUM_BYTES);
}
+
+#endif /* WANT_RAW_DATA_SECTOR */
#include <stdlib.h>
#include <string.h>
#include <time.h>
-#include "chd.h"
-#include "cdrom.h"
-#include "flac.h"
-#include "huffman.h"
+
+#include <libchdr/chd.h>
+#include <libchdr/cdrom.h>
+#include <libchdr/flac.h>
+#include <libchdr/huffman.h>
+
#include "LzmaEnc.h"
#include "LzmaDec.h"
-#include "md5.h"
-#include "sha1.h"
#include "zlib.h"
+#undef TRUE
+#undef FALSE
#define TRUE 1
#define FALSE 0
+#undef MAX
+#undef MIN
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#define MAP_ENTRY_SIZE 16 /* V3 and later */
#define OLD_MAP_ENTRY_SIZE 8 /* V1-V2 */
#define METADATA_HEADER_SIZE 16 /* metadata header size */
-#define CRCMAP_HASH_SIZE 4095 /* number of CRC hashtable entries */
#define MAP_ENTRY_FLAG_TYPE_MASK 0x0f /* what type of hunk */
#define MAP_ENTRY_FLAG_NO_CRC 0x10 /* no CRC is present */
#define NO_MATCH (~0)
+#ifdef WANT_RAW_DATA_SECTOR
static const uint8_t s_cd_sync_header[12] = { 0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00 };
+#endif
/* V3-V4 entry types */
enum
UINT8 flags; /* misc flags */
};
-/* simple linked-list of hunks used for our CRC map */
-typedef struct _crcmap_entry crcmap_entry;
-struct _crcmap_entry
-{
- UINT32 hunknum; /* hunk number */
- crcmap_entry * next; /* next entry in list */
-};
-
/* a single metadata entry */
typedef struct _metadata_entry metadata_entry;
struct _metadata_entry
struct _cdzl_codec_data {
/* internal state */
zlib_codec_data base_decompressor;
+#ifdef WANT_SUBCODE
zlib_codec_data subcode_decompressor;
+#endif
uint8_t* buffer;
};
struct _cdlz_codec_data {
/* internal state */
lzma_codec_data base_decompressor;
+#ifdef WANT_SUBCODE
zlib_codec_data subcode_decompressor;
+#endif
uint8_t* buffer;
};
/* internal state */
int swap_endian;
flac_decoder decoder;
- z_stream inflater;
- zlib_allocator allocator;
+#ifdef WANT_SUBCODE
+ zlib_codec_data subcode_decompressor;
+#endif
uint8_t* buffer;
};
map_entry * map; /* array of map entries */
+#ifdef NEED_CACHE_HUNK
UINT8 * cache; /* hunk cache pointer */
UINT32 cachehunk; /* index of currently cached hunk */
UINT8 * compare; /* hunk compare pointer */
UINT32 comparehunk; /* index of current compare data */
+#endif
UINT8 * compressed; /* pointer to buffer for compressed data */
const codec_interface * codecintf[4]; /* interface to the codec */
cdlz_codec_data cdlz_codec_data; /* cdlz codec data */
cdfl_codec_data cdfl_codec_data; /* cdfl codec data */
- crcmap_entry * crcmap; /* CRC map entries */
- crcmap_entry * crcfree; /* free list CRC entries */
- crcmap_entry ** crctable; /* table of CRC entries */
-
+#ifdef NEED_CACHE_HUNK
UINT32 maxhunk; /* maximum hunk accessed */
-
- UINT8 compressing; /* are we compressing? */
- MD5_CTX compmd5; /* running MD5 during compression */
- SHA1_CTX compsha1; /* running SHA1 during compression */
- UINT32 comphunk; /* next hunk we will compress */
-
- UINT8 verifying; /* are we verifying? */
- MD5_CTX vermd5; /* running MD5 during verification */
- SHA1_CTX versha1; /* running SHA1 during verification */
- UINT32 verhunk; /* next hunk we will verify */
-
- UINT32 async_hunknum; /* hunk index for asynchronous operations */
- void * async_buffer; /* buffer pointer for asynchronous operations */
+#endif
UINT8 * file_cache; /* cache of underlying file */
};
-/* a single metadata hash entry */
-typedef struct _metadata_hash metadata_hash;
-struct _metadata_hash
-{
- UINT8 tag[4]; /* tag of the metadata in big-endian */
- UINT8 sha1[CHD_SHA1_BYTES]; /* hash */
-};
/***************************************************************************
GLOBAL VARIABLES
static chd_error header_read(chd_file *chd, chd_header *header);
/* internal hunk read/write */
+#ifdef NEED_CACHE_HUNK
static chd_error hunk_read_into_cache(chd_file *chd, UINT32 hunknum);
+#endif
static chd_error hunk_read_into_memory(chd_file *chd, UINT32 hunknum, UINT8 *dest);
/* internal map access */
***************************************************************************
*/
-void *lzma_fast_alloc(void *p, size_t size);
-void lzma_fast_free(void *p, void *address);
+static void *lzma_fast_alloc(void *p, size_t size);
+static void lzma_fast_free(void *p, void *address);
/*-------------------------------------------------
* lzma_allocator_init
*-------------------------------------------------
*/
-void lzma_allocator_init(void* p)
+static void lzma_allocator_init(void* p)
{
lzma_allocator *codec = (lzma_allocator *)(p);
*-------------------------------------------------
*/
-void lzma_allocator_free(void* p )
+static void lzma_allocator_free(void* p )
{
int i;
lzma_allocator *codec = (lzma_allocator *)(p);
*-------------------------------------------------
*/
+/* Huge alignment values for possible SIMD optimization by compiler (NEON, SSE, AVX) */
#define LZMA_MIN_ALIGNMENT_BITS 512
#define LZMA_MIN_ALIGNMENT_BYTES (LZMA_MIN_ALIGNMENT_BITS / 8)
-void *lzma_fast_alloc(void *p, size_t size)
+
+static void *lzma_fast_alloc(void *p, size_t size)
{
int scan;
uint32_t *addr = NULL;
lzma_allocator *codec = (lzma_allocator *)(p);
-
uintptr_t vaddr = 0;
/* compute the size, rounding to the nearest 1k */
{
/* set the low bit of the size so we don't match next time */
*ptr |= 1;
+
+ /* return aligned address of the block */
return codec->allocptr2[scan];
}
}
addr = (uint32_t *)malloc(size + sizeof(uint32_t) + LZMA_MIN_ALIGNMENT_BYTES);
if (addr==NULL)
return NULL;
- for (int scan = 0; scan < MAX_LZMA_ALLOCS; scan++)
+ for (scan = 0; scan < MAX_LZMA_ALLOCS; scan++)
{
if (codec->allocptr[scan] == NULL)
{
+ /* store block address */
codec->allocptr[scan] = addr;
+
+ /* compute aligned address, store it */
vaddr = (uintptr_t)addr;
vaddr = (vaddr + sizeof(uint32_t) + (LZMA_MIN_ALIGNMENT_BYTES-1)) & (~(LZMA_MIN_ALIGNMENT_BYTES-1));
codec->allocptr2[scan] = (uint32_t*)vaddr;
/* set the low bit of the size so we don't match next time */
*addr = size | 1;
+
+ /* return aligned address */
return (void*)vaddr;
}
*-------------------------------------------------
*/
-void lzma_fast_free(void *p, void *address)
+static void lzma_fast_free(void *p, void *address)
{
int scan;
uint32_t *ptr = NULL;
*-------------------------------------------------
*/
-chd_error lzma_codec_init(void* codec, uint32_t hunkbytes)
+static chd_error lzma_codec_init(void* codec, uint32_t hunkbytes)
{
CLzmaEncHandle enc;
CLzmaEncProps encoder_props;
*-------------------------------------------------
*/
-void lzma_codec_free(void* codec)
+static void lzma_codec_free(void* codec)
{
lzma_codec_data* lzma_codec = (lzma_codec_data*) codec;
*-------------------------------------------------
*/
-chd_error lzma_codec_decompress(void* codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
+static chd_error lzma_codec_decompress(void* codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
{
ELzmaStatus status;
SRes res;
}
/* cdlz */
-chd_error cdlz_codec_init(void* codec, uint32_t hunkbytes)
+static chd_error cdlz_codec_init(void* codec, uint32_t hunkbytes)
{
+ chd_error ret;
cdlz_codec_data* cdlz = (cdlz_codec_data*) codec;
/* allocate buffer */
cdlz->buffer = (uint8_t*)malloc(sizeof(uint8_t) * hunkbytes);
+ if (cdlz->buffer == NULL)
+ return CHDERR_OUT_OF_MEMORY;
/* make sure the CHD's hunk size is an even multiple of the frame size */
- lzma_codec_init(&cdlz->base_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SECTOR_DATA);
- zlib_codec_init(&cdlz->subcode_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SUBCODE_DATA);
+ ret = lzma_codec_init(&cdlz->base_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SECTOR_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
+
+#ifdef WANT_SUBCODE
+ ret = zlib_codec_init(&cdlz->subcode_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SUBCODE_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
+#endif
if (hunkbytes % CD_FRAME_SIZE != 0)
return CHDERR_CODEC_ERROR;
return CHDERR_NONE;
}
-void cdlz_codec_free(void* codec)
+static void cdlz_codec_free(void* codec)
{
cdlz_codec_data* cdlz = (cdlz_codec_data*) codec;
free(cdlz->buffer);
lzma_codec_free(&cdlz->base_decompressor);
+#ifdef WANT_SUBCODE
zlib_codec_free(&cdlz->subcode_decompressor);
+#endif
}
-chd_error cdlz_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
+static chd_error cdlz_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
{
uint32_t framenum;
cdlz_codec_data* cdlz = (cdlz_codec_data*)codec;
/* reset and decode */
lzma_codec_decompress(&cdlz->base_decompressor, &src[header_bytes], complen_base, &cdlz->buffer[0], frames * CD_MAX_SECTOR_DATA);
+#ifdef WANT_SUBCODE
zlib_codec_decompress(&cdlz->subcode_decompressor, &src[header_bytes + complen_base], complen - complen_base - header_bytes, &cdlz->buffer[frames * CD_MAX_SECTOR_DATA], frames * CD_MAX_SUBCODE_DATA);
+#endif
/* reassemble the data */
for (framenum = 0; framenum < frames; framenum++)
uint8_t *sector;
memcpy(&dest[framenum * CD_FRAME_SIZE], &cdlz->buffer[framenum * CD_MAX_SECTOR_DATA], CD_MAX_SECTOR_DATA);
+#ifdef WANT_SUBCODE
memcpy(&dest[framenum * CD_FRAME_SIZE + CD_MAX_SECTOR_DATA], &cdlz->buffer[frames * CD_MAX_SECTOR_DATA + framenum * CD_MAX_SUBCODE_DATA], CD_MAX_SUBCODE_DATA);
+#endif
+#ifdef WANT_RAW_DATA_SECTOR
/* reconstitute the ECC data and sync header */
sector = (uint8_t *)&dest[framenum * CD_FRAME_SIZE];
if ((src[framenum / 8] & (1 << (framenum % 8))) != 0)
memcpy(sector, s_cd_sync_header, sizeof(s_cd_sync_header));
ecc_generate(sector);
}
+#endif
}
return CHDERR_NONE;
}
/* cdzl */
-chd_error cdzl_codec_init(void *codec, uint32_t hunkbytes)
+static chd_error cdzl_codec_init(void *codec, uint32_t hunkbytes)
{
+ chd_error ret;
cdzl_codec_data* cdzl = (cdzl_codec_data*)codec;
/* make sure the CHD's hunk size is an even multiple of the frame size */
- zlib_codec_init(&cdzl->base_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SECTOR_DATA);
- zlib_codec_init(&cdzl->subcode_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SUBCODE_DATA);
-
- cdzl->buffer = (uint8_t*)malloc(sizeof(uint8_t) * hunkbytes);
if (hunkbytes % CD_FRAME_SIZE != 0)
return CHDERR_CODEC_ERROR;
+ cdzl->buffer = (uint8_t*)malloc(sizeof(uint8_t) * hunkbytes);
+ if (cdzl->buffer == NULL)
+ return CHDERR_OUT_OF_MEMORY;
+
+ ret = zlib_codec_init(&cdzl->base_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SECTOR_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
+
+#ifdef WANT_SUBCODE
+ ret = zlib_codec_init(&cdzl->subcode_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SUBCODE_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
+#endif
+
return CHDERR_NONE;
}
-void cdzl_codec_free(void *codec)
+static void cdzl_codec_free(void *codec)
{
cdzl_codec_data* cdzl = (cdzl_codec_data*)codec;
zlib_codec_free(&cdzl->base_decompressor);
+#ifdef WANT_SUBCODE
zlib_codec_free(&cdzl->subcode_decompressor);
+#endif
free(cdzl->buffer);
}
-chd_error cdzl_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
+static chd_error cdzl_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
{
uint32_t framenum;
cdzl_codec_data* cdzl = (cdzl_codec_data*)codec;
/* reset and decode */
zlib_codec_decompress(&cdzl->base_decompressor, &src[header_bytes], complen_base, &cdzl->buffer[0], frames * CD_MAX_SECTOR_DATA);
+#ifdef WANT_SUBCODE
zlib_codec_decompress(&cdzl->subcode_decompressor, &src[header_bytes + complen_base], complen - complen_base - header_bytes, &cdzl->buffer[frames * CD_MAX_SECTOR_DATA], frames * CD_MAX_SUBCODE_DATA);
+#endif
/* reassemble the data */
for (framenum = 0; framenum < frames; framenum++)
uint8_t *sector;
memcpy(&dest[framenum * CD_FRAME_SIZE], &cdzl->buffer[framenum * CD_MAX_SECTOR_DATA], CD_MAX_SECTOR_DATA);
+#ifdef WANT_SUBCODE
memcpy(&dest[framenum * CD_FRAME_SIZE + CD_MAX_SECTOR_DATA], &cdzl->buffer[frames * CD_MAX_SECTOR_DATA + framenum * CD_MAX_SUBCODE_DATA], CD_MAX_SUBCODE_DATA);
+#endif
+#ifdef WANT_RAW_DATA_SECTOR
/* reconstitute the ECC data and sync header */
sector = (uint8_t *)&dest[framenum * CD_FRAME_SIZE];
if ((src[framenum / 8] & (1 << (framenum % 8))) != 0)
memcpy(sector, s_cd_sync_header, sizeof(s_cd_sync_header));
ecc_generate(sector);
}
+#endif
}
return CHDERR_NONE;
}
return hunkbytes;
}
-chd_error cdfl_codec_init(void *codec, uint32_t hunkbytes)
+static chd_error cdfl_codec_init(void *codec, uint32_t hunkbytes)
{
- int zerr;
+#ifdef WANT_SUBCODE
+ chd_error ret;
+#endif
uint16_t native_endian = 0;
cdfl_codec_data *cdfl = (cdfl_codec_data*)codec;
- cdfl->buffer = (uint8_t*)malloc(sizeof(uint8_t) * hunkbytes);
-
/* make sure the CHD's hunk size is an even multiple of the frame size */
if (hunkbytes % CD_FRAME_SIZE != 0)
return CHDERR_CODEC_ERROR;
+ cdfl->buffer = (uint8_t*)malloc(sizeof(uint8_t) * hunkbytes);
+ if (cdfl->buffer == NULL)
+ return CHDERR_OUT_OF_MEMORY;
+
/* determine whether we want native or swapped samples */
*(uint8_t *)(&native_endian) = 1;
cdfl->swap_endian = (native_endian & 1);
- /* init the inflater */
- cdfl->inflater.next_in = (Bytef *)cdfl; /* bogus, but that's ok */
- cdfl->inflater.avail_in = 0;
-#if 0
- cdfl->allocator.install(cdfl->inflater);
+#ifdef WANT_SUBCODE
+ /* init zlib inflater */
+ ret = zlib_codec_init(&cdfl->subcode_decompressor, (hunkbytes / CD_FRAME_SIZE) * CD_MAX_SECTOR_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
#endif
- cdfl->inflater.zalloc = zlib_fast_alloc;
- cdfl->inflater.zfree = zlib_fast_free;
- cdfl->inflater.opaque = &cdfl->allocator;
- zerr = inflateInit2(&cdfl->inflater, -MAX_WBITS);
- /* convert errors */
- if (zerr == Z_MEM_ERROR)
+ /* flac decoder init */
+ if (flac_decoder_init(&cdfl->decoder))
return CHDERR_OUT_OF_MEMORY;
- else if (zerr != Z_OK)
- return CHDERR_CODEC_ERROR;
- /* flac decoder init */
- flac_decoder_init(&cdfl->decoder);
return CHDERR_NONE;
}
-void cdfl_codec_free(void *codec)
+static void cdfl_codec_free(void *codec)
{
cdfl_codec_data *cdfl = (cdfl_codec_data*)codec;
- free(cdfl->buffer);
- inflateEnd(&cdfl->inflater);
flac_decoder_free(&cdfl->decoder);
-
- /* free our fast memory */
- zlib_allocator_free(&cdfl->allocator);
+#ifdef WANT_SUBCODE
+ zlib_codec_free(&cdfl->subcode_decompressor);
+#endif
+ if (cdfl->buffer)
+ free(cdfl->buffer);
}
-chd_error cdfl_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
+static chd_error cdfl_codec_decompress(void *codec, const uint8_t *src, uint32_t complen, uint8_t *dest, uint32_t destlen)
{
- int zerr;
+ uint32_t framenum;
uint8_t *buffer;
- uint32_t framenum, offset;
+#ifdef WANT_SUBCODE
+ uint32_t offset;
+ chd_error ret;
+#endif
cdfl_codec_data *cdfl = (cdfl_codec_data*)codec;
/* reset and decode */
if (!flac_decoder_decode_interleaved(&cdfl->decoder, (int16_t *)(buffer), frames * CD_MAX_SECTOR_DATA/4, cdfl->swap_endian))
return CHDERR_DECOMPRESSION_ERROR;
+#ifdef WANT_SUBCODE
/* inflate the subcode data */
offset = flac_decoder_finish(&cdfl->decoder);
- cdfl->inflater.next_in = (Bytef *)(src + offset);
- cdfl->inflater.avail_in = complen - offset;
- cdfl->inflater.total_in = 0;
- cdfl->inflater.next_out = &cdfl->buffer[frames * CD_MAX_SECTOR_DATA];
- cdfl->inflater.avail_out = frames * CD_MAX_SUBCODE_DATA;
- cdfl->inflater.total_out = 0;
- zerr = inflateReset(&cdfl->inflater);
- if (zerr != Z_OK)
- return CHDERR_DECOMPRESSION_ERROR;
-
- /* do it */
- zerr = inflate(&cdfl->inflater, Z_FINISH);
- if (zerr != Z_STREAM_END)
- return CHDERR_DECOMPRESSION_ERROR;
- if (cdfl->inflater.total_out != frames * CD_MAX_SUBCODE_DATA)
- return CHDERR_DECOMPRESSION_ERROR;
+ ret = zlib_codec_decompress(&cdfl->subcode_decompressor, src + offset, complen - offset, &cdfl->buffer[frames * CD_MAX_SECTOR_DATA], frames * CD_MAX_SUBCODE_DATA);
+ if (ret != CHDERR_NONE)
+ return ret;
+#else
+ flac_decoder_finish(&cdfl->decoder);
+#endif
/* reassemble the data */
for (framenum = 0; framenum < frames; framenum++)
{
memcpy(&dest[framenum * CD_FRAME_SIZE], &cdfl->buffer[framenum * CD_MAX_SECTOR_DATA], CD_MAX_SECTOR_DATA);
+#ifdef WANT_SUBCODE
memcpy(&dest[framenum * CD_FRAME_SIZE + CD_MAX_SECTOR_DATA], &cdfl->buffer[frames * CD_MAX_SECTOR_DATA + framenum * CD_MAX_SUBCODE_DATA], CD_MAX_SUBCODE_DATA);
+#endif
}
return CHDERR_NONE;
/*-------------------------------------------------
compressed - test if CHD file is compressed
+-------------------------------------------------*/
-
static inline int chd_compressed(chd_header* header) {
return header->compression[0] != CHD_CODEC_NONE;
}
uint8_t rawbuf[16];
struct huffman_decoder* decoder;
enum huffman_error err;
- uint64_t curoffset;
+ uint64_t curoffset;
int rawmapsize = map_size_v5(header);
if (!chd_compressed(header))
{
header->rawmap = (uint8_t*)malloc(rawmapsize);
- int result;
core_fseek(chd->file, header->mapoffset, SEEK_SET);
result = core_fread(chd->file, header->rawmap, rawmapsize);
return CHDERR_NONE;
/* first decode the compression types */
decoder = create_huffman_decoder(16, 8);
+ if (decoder == NULL)
+ {
+ free(compressed_ptr);
+ free(bitbuf);
+ return CHDERR_OUT_OF_MEMORY;
+ }
+
err = huffman_import_tree_rle(decoder, bitbuf);
if (err != HUFFERR_NONE)
+ {
+ free(compressed_ptr);
+ free(bitbuf);
+ delete_huffman_decoder(decoder);
return CHDERR_DECOMPRESSION_ERROR;
+ }
+
for (hunknum = 0; hunknum < header->hunkcount; hunknum++)
{
uint8_t *rawmap = header->rawmap + (hunknum * 12);
put_bigendian_uint16(&rawmap[10], crc);
}
+ /* free memory */
free(compressed_ptr);
free(bitbuf);
- free(decoder->lookup);
- free(decoder->huffnode);
- free(decoder);
+ delete_huffman_decoder(decoder);
/* verify the final CRC */
if (crc16(&header->rawmap[0], header->hunkcount * 12) != mapcrc)
chd_open_file - open a CHD file for access
-------------------------------------------------*/
-chd_error chd_open_file(core_file *file, int mode, chd_file *parent, chd_file **chd)
+CHD_EXPORT chd_error chd_open_file(core_file *file, int mode, chd_file *parent, chd_file **chd)
{
chd_file *newchd = NULL;
chd_error err;
if (newchd->header.version < 5)
{
err = map_read(newchd);
+ if (err != CHDERR_NONE)
+ EARLY_EXIT(err);
}
else
{
if (err != CHDERR_NONE)
EARLY_EXIT(err);
-
+#ifdef NEED_CACHE_HUNK
/* allocate and init the hunk cache */
newchd->cache = (UINT8 *)malloc(newchd->header.hunkbytes);
newchd->compare = (UINT8 *)malloc(newchd->header.hunkbytes);
EARLY_EXIT(err = CHDERR_OUT_OF_MEMORY);
newchd->cachehunk = ~0;
newchd->comparehunk = ~0;
+#endif
/* allocate the temporary compressed buffer */
newchd->compressed = (UINT8 *)malloc(newchd->header.hunkbytes);
memory
-------------------------------------------------*/
-chd_error chd_precache(chd_file *chd)
+CHD_EXPORT chd_error chd_precache(chd_file *chd)
{
+#ifdef _MSC_VER
+ size_t size, count;
+#else
ssize_t size, count;
+#endif
if (chd->file_cache == NULL)
{
filename
-------------------------------------------------*/
-chd_error chd_open(const char *filename, int mode, chd_file *parent, chd_file **chd)
+CHD_EXPORT chd_error chd_open(const char *filename, int mode, chd_file *parent, chd_file **chd)
{
chd_error err;
core_file *file = NULL;
- UINT32 openflags;
/* choose the proper mode */
switch(mode)
chd_close - close a CHD file for access
-------------------------------------------------*/
-void chd_close(chd_file *chd)
+CHD_EXPORT void chd_close(chd_file *chd)
{
/* punt if NULL or invalid */
if (chd == NULL || chd->cookie != COOKIE_VALUE)
}
else
{
- int i;
+ int i;
/* Free the codecs */
for (i = 0 ; i < ARRAY_LENGTH(chd->codecintf); i++)
{
if (chd->compressed != NULL)
free(chd->compressed);
+#ifdef NEED_CACHE_HUNK
/* free the hunk cache and compare data */
if (chd->compare != NULL)
free(chd->compare);
if (chd->cache != NULL)
free(chd->cache);
+#endif
/* free the hunk map */
if (chd->map != NULL)
free(chd->map);
- /* free the CRC table */
- if (chd->crctable != NULL)
- free(chd->crctable);
-
- /* free the CRC map */
- if (chd->crcmap != NULL)
- free(chd->crcmap);
-
/* close the file */
if (chd->owns_file && chd->file != NULL)
core_fclose(chd->file);
+#ifdef NEED_CACHE_HUNK
if (PRINTF_MAX_HUNK) printf("Max hunk = %d/%d\n", chd->maxhunk, chd->header.totalhunks);
-
+#endif
if (chd->file_cache)
free(chd->file_cache);
core_file
-------------------------------------------------*/
-core_file *chd_core_file(chd_file *chd)
+CHD_EXPORT core_file *chd_core_file(chd_file *chd)
{
return chd->file;
}
the given CHD error
-------------------------------------------------*/
-const char *chd_error_string(chd_error err)
+CHD_EXPORT const char *chd_error_string(chd_error err)
{
switch (err)
{
extracted header data
-------------------------------------------------*/
-const chd_header *chd_get_header(chd_file *chd)
+CHD_EXPORT const chd_header *chd_get_header(chd_file *chd)
{
/* punt if NULL or invalid */
if (chd == NULL || chd->cookie != COOKIE_VALUE)
file
-------------------------------------------------*/
-chd_error chd_read(chd_file *chd, UINT32 hunknum, void *buffer)
+CHD_EXPORT chd_error chd_read(chd_file *chd, UINT32 hunknum, void *buffer)
{
/* punt if NULL or invalid */
if (chd == NULL || chd->cookie != COOKIE_VALUE)
of the given type
-------------------------------------------------*/
-chd_error chd_get_metadata(chd_file *chd, UINT32 searchtag, UINT32 searchindex, void *output, UINT32 outputlen, UINT32 *resultlen, UINT32 *resulttag, UINT8 *resultflags)
+CHD_EXPORT chd_error chd_get_metadata(chd_file *chd, UINT32 searchtag, UINT32 searchindex, void *output, UINT32 outputlen, UINT32 *resultlen, UINT32 *resulttag, UINT8 *resultflags)
{
metadata_entry metaentry;
chd_error err;
parameters
-------------------------------------------------*/
-chd_error chd_codec_config(chd_file *chd, int param, void *config)
+CHD_EXPORT chd_error chd_codec_config(chd_file *chd, int param, void *config)
{
return CHDERR_INVALID_PARAMETER;
}
particular codec
-------------------------------------------------*/
-const char *chd_get_codec_name(UINT32 codec)
+CHD_EXPORT const char *chd_get_codec_name(UINT32 codec)
{
return "Unknown";
}
static UINT8* hunk_read_compressed(chd_file *chd, UINT64 offset, size_t size)
{
+#ifdef _MSC_VER
+ size_t bytes;
+#else
ssize_t bytes;
+#endif
if (chd->file_cache != NULL)
{
return chd->file_cache + offset;
static chd_error hunk_read_uncompressed(chd_file *chd, UINT64 offset, size_t size, UINT8 *dest)
{
+#ifdef _MSC_VER
+ size_t bytes;
+#else
ssize_t bytes;
+#endif
if (chd->file_cache != NULL)
{
memcpy(dest, chd->file_cache + offset, size);
return CHDERR_NONE;
}
+#ifdef NEED_CACHE_HUNK
/*-------------------------------------------------
hunk_read_into_cache - read a hunk into
the CHD's hunk cache
chd->cachehunk = hunknum;
return CHDERR_NONE;
}
+#endif
/*-------------------------------------------------
hunk_read_into_memory - read a hunk into
if (hunknum >= chd->header.totalhunks)
return CHDERR_HUNK_OUT_OF_RANGE;
+ if (dest == NULL)
+ return CHDERR_INVALID_PARAMETER;
+
if (chd->header.version < 5)
{
map_entry *entry = &chd->map[hunknum];
/* compressed data */
case V34_MAP_ENTRY_TYPE_COMPRESSED:
{
- void *codec = NULL;
+ void *codec = NULL;
/* read it into the decompression buffer */
compressed_bytes = hunk_read_compressed(chd, entry->offset, entry->length);
/* self-referenced data */
case V34_MAP_ENTRY_TYPE_SELF_HUNK:
+#ifdef NEED_CACHE_HUNK
if (chd->cachehunk == entry->offset && dest == chd->cache)
break;
+#endif
return hunk_read_into_memory(chd, entry->offset, dest);
/* parent-referenced data */
}
else
{
+ void* codec = NULL;
/* get a pointer to the map entry */
uint64_t blockoffs;
uint32_t blocklen;
+#ifdef VERIFY_BLOCK_CRC
uint16_t blockcrc;
- void* codec = NULL;
+#endif
uint8_t *rawmap = &chd->header.rawmap[chd->header.mapentrybytes * hunknum];
UINT8* compressed_bytes;
{
blockoffs = (uint64_t)get_bigendian_uint32(rawmap) * (uint64_t)chd->header.hunkbytes;
if (blockoffs != 0) {
- int result;
core_fseek(chd->file, blockoffs, SEEK_SET);
- result = core_fread(chd->file, dest, chd->header.hunkbytes);
+ int result = core_fread(chd->file, dest, chd->header.hunkbytes);
/* TODO
else if (m_parent_missing)
throw CHDERR_REQUIRES_PARENT; */
} else {
memset(dest, 0, chd->header.hunkbytes);
}
+
return CHDERR_NONE;
}
/* compressed case */
blocklen = get_bigendian_uint24(&rawmap[1]);
blockoffs = get_bigendian_uint48(&rawmap[4]);
+#ifdef VERIFY_BLOCK_CRC
blockcrc = get_bigendian_uint16(&rawmap[10]);
+#endif
codec = NULL;
switch (rawmap[0])
{
break;
}
if (codec==NULL)
+ return CHDERR_CODEC_ERROR;
+ err = chd->codecintf[rawmap[0]]->decompress(codec, compressed_bytes, blocklen, dest, chd->header.hunkbytes);
+ if (err != CHDERR_NONE)
+ return err;
+#ifdef VERIFY_BLOCK_CRC
+ if (crc16(dest, chd->header.hunkbytes) != blockcrc)
return CHDERR_DECOMPRESSION_ERROR;
- chd->codecintf[rawmap[0]]->decompress(codec, compressed_bytes, blocklen, dest, chd->header.hunkbytes);
- if (dest != NULL && crc16(dest, chd->header.hunkbytes) != blockcrc)
- return CHDERR_DECOMPRESSION_ERROR;
+#endif
return CHDERR_NONE;
case COMPRESSION_NONE:
err = hunk_read_uncompressed(chd, blockoffs, blocklen, dest);
if (err != CHDERR_NONE)
return err;
+#ifdef VERIFY_BLOCK_CRC
if (crc16(dest, chd->header.hunkbytes) != blockcrc)
return CHDERR_DECOMPRESSION_ERROR;
+#endif
return CHDERR_NONE;
case COMPRESSION_SELF:
static chd_error zlib_codec_init(void *codec, uint32_t hunkbytes)
{
- zlib_codec_data *data = (zlib_codec_data*)codec;
- chd_error err;
int zerr;
+ chd_error err;
+ zlib_codec_data *data = (zlib_codec_data*)codec;
/* clear the buffers */
memset(data, 0, sizeof(zlib_codec_data));
zlib_fast_alloc - fast malloc for ZLIB, which
allocates and frees memory frequently
-------------------------------------------------*/
+
+/* Huge alignment values for possible SIMD optimization by compiler (NEON, SSE, AVX) */
#define ZLIB_MIN_ALIGNMENT_BITS 512
#define ZLIB_MIN_ALIGNMENT_BYTES (ZLIB_MIN_ALIGNMENT_BITS / 8)
{
/* set the low bit of the size so we don't match next time */
*ptr |= 1;
+
+ /* return aligned block address */
return (voidpf)(alloc->allocptr2[i]);
}
}
/* set the low bit of the size so we don't match next time */
*ptr = size | 1;
+
+ /* return aligned block address */
return (voidpf)paddr;
}
--- /dev/null
+/* license:BSD-3-Clause
+ * copyright-holders:Aaron Giles
+***************************************************************************
+
+ flac.c
+
+ FLAC compression wrappers
+
+***************************************************************************/
+
+#include <assert.h>
+#include <string.h>
+
+#include <libchdr/flac.h>
+#define DR_FLAC_IMPLEMENTATION
+#include <dr_libs/dr_flac.h>
+
+/***************************************************************************
+ * FLAC DECODER
+ ***************************************************************************
+ */
+
+static size_t flac_decoder_read_callback(void *userdata, void *buffer, size_t bytes);
+static drflac_bool32 flac_decoder_seek_callback(void *userdata, int offset, drflac_seek_origin origin);
+static void flac_decoder_metadata_callback(void *userdata, drflac_metadata *metadata);
+static void flac_decoder_write_callback(void *userdata, void *buffer, size_t len);
+
+
+/* getters (valid after reset) */
+static uint32_t sample_rate(flac_decoder *decoder) { return decoder->sample_rate; }
+static uint8_t channels(flac_decoder *decoder) { return decoder->channels; }
+static uint8_t bits_per_sample(flac_decoder *decoder) { return decoder->bits_per_sample; }
+
+/*-------------------------------------------------
+ * flac_decoder - constructor
+ *-------------------------------------------------
+ */
+
+int flac_decoder_init(flac_decoder *decoder)
+{
+ decoder->decoder = NULL;
+ decoder->sample_rate = 0;
+ decoder->channels = 0;
+ decoder->bits_per_sample = 0;
+ decoder->compressed_offset = 0;
+ decoder->compressed_start = NULL;
+ decoder->compressed_length = 0;
+ decoder->compressed2_start = NULL;
+ decoder->compressed2_length = 0;
+ decoder->uncompressed_offset = 0;
+ decoder->uncompressed_length = 0;
+ decoder->uncompressed_swap = 0;
+ return 0;
+}
+
+/*-------------------------------------------------
+ * flac_decoder - destructor
+ *-------------------------------------------------
+ */
+
+void flac_decoder_free(flac_decoder* decoder)
+{
+ if ((decoder != NULL) && (decoder->decoder != NULL))
+ drflac_close(decoder->decoder);
+ decoder->decoder = NULL;
+}
+
+/*-------------------------------------------------
+ * reset - reset state with the original
+ * parameters
+ *-------------------------------------------------
+ */
+
+static int flac_decoder_internal_reset(flac_decoder* decoder)
+{
+ decoder->compressed_offset = 0;
+ flac_decoder_free(decoder);
+ decoder->decoder = drflac_open_with_metadata(
+ flac_decoder_read_callback, flac_decoder_seek_callback,
+ flac_decoder_metadata_callback, decoder, NULL);
+ return (decoder->decoder != NULL);
+}
+
+/*-------------------------------------------------
+ * reset - reset state with new memory parameters
+ * and a custom-generated header
+ *-------------------------------------------------
+ */
+
+int flac_decoder_reset(flac_decoder* decoder, uint32_t sample_rate, uint8_t num_channels, uint32_t block_size, const void *buffer, uint32_t length)
+{
+ /* modify the template header with our parameters */
+ static const uint8_t s_header_template[0x2a] =
+ {
+ 0x66, 0x4C, 0x61, 0x43, /* +00: 'fLaC' stream header */
+ 0x80, /* +04: metadata block type 0 (STREAMINFO), */
+ /* flagged as last block */
+ 0x00, 0x00, 0x22, /* +05: metadata block length = 0x22 */
+ 0x00, 0x00, /* +08: minimum block size */
+ 0x00, 0x00, /* +0A: maximum block size */
+ 0x00, 0x00, 0x00, /* +0C: minimum frame size (0 == unknown) */
+ 0x00, 0x00, 0x00, /* +0F: maximum frame size (0 == unknown) */
+ 0x0A, 0xC4, 0x42, 0xF0, 0x00, 0x00, 0x00, 0x00, /* +12: sample rate (0x0ac44 == 44100), */
+ /* numchannels (2), sample bits (16), */
+ /* samples in stream (0 == unknown) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* +1A: MD5 signature (0 == none) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* +2A: start of stream data */
+ };
+ memcpy(decoder->custom_header, s_header_template, sizeof(s_header_template));
+ decoder->custom_header[0x08] = decoder->custom_header[0x0a] = (block_size*num_channels) >> 8;
+ decoder->custom_header[0x09] = decoder->custom_header[0x0b] = (block_size*num_channels) & 0xff;
+ decoder->custom_header[0x12] = sample_rate >> 12;
+ decoder->custom_header[0x13] = sample_rate >> 4;
+ decoder->custom_header[0x14] = (sample_rate << 4) | ((num_channels - 1) << 1);
+
+ /* configure the header ahead of the provided buffer */
+ decoder->compressed_start = (const uint8_t *)(decoder->custom_header);
+ decoder->compressed_length = sizeof(decoder->custom_header);
+ decoder->compressed2_start = (const uint8_t *)(buffer);
+ decoder->compressed2_length = length;
+ return flac_decoder_internal_reset(decoder);
+}
+
+/*-------------------------------------------------
+ * decode_interleaved - decode to an interleaved
+ * sound stream
+ *-------------------------------------------------
+ */
+
+int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian)
+{
+ /* configure the uncompressed buffer */
+ memset(decoder->uncompressed_start, 0, sizeof(decoder->uncompressed_start));
+ decoder->uncompressed_start[0] = samples;
+ decoder->uncompressed_offset = 0;
+ decoder->uncompressed_length = num_samples;
+ decoder->uncompressed_swap = swap_endian;
+
+#define BUFFER 2352 /* bytes per CD audio sector */
+ int16_t buffer[BUFFER];
+ uint32_t buf_samples = BUFFER / channels(decoder);
+ /* loop until we get everything we want */
+ while (decoder->uncompressed_offset < decoder->uncompressed_length) {
+ uint32_t frames = (num_samples < buf_samples ? num_samples : buf_samples);
+ if (!drflac_read_pcm_frames_s16(decoder->decoder, frames, buffer))
+ return 0;
+ flac_decoder_write_callback(decoder, buffer, frames*sizeof(*buffer)*channels(decoder));
+ num_samples -= frames;
+ }
+ return 1;
+}
+
+/*-------------------------------------------------
+ * finish - finish up the decode
+ *-------------------------------------------------
+ */
+
+uint32_t flac_decoder_finish(flac_decoder* decoder)
+{
+ /* get the final decoding position and move forward */
+ drflac *flac = decoder->decoder;
+ uint64_t position = decoder->compressed_offset;
+
+ /* ugh... there's no function to obtain bytes used in drflac :-/ */
+ position -= DRFLAC_CACHE_L2_LINES_REMAINING(&flac->bs) * sizeof(drflac_cache_t);
+ position -= DRFLAC_CACHE_L1_BITS_REMAINING(&flac->bs) / 8;
+ position -= flac->bs.unalignedByteCount;
+
+ /* adjust position if we provided the header */
+ if (position == 0)
+ return 0;
+ if (decoder->compressed_start == (const uint8_t *)(decoder->custom_header))
+ position -= decoder->compressed_length;
+
+ flac_decoder_free(decoder);
+ return position;
+}
+
+/*-------------------------------------------------
+ * read_callback - handle reads from the input
+ * stream
+ *-------------------------------------------------
+ */
+
+#define MIN(x, y) ((x) < (y) ? (x) : (y))
+
+static size_t flac_decoder_read_callback(void *userdata, void *buffer, size_t bytes)
+{
+ flac_decoder* decoder = (flac_decoder*)userdata;
+ uint8_t *dst = buffer;
+
+ /* copy from primary buffer first */
+ uint32_t outputpos = 0;
+ if (outputpos < bytes && decoder->compressed_offset < decoder->compressed_length)
+ {
+ uint32_t bytes_to_copy = MIN(bytes - outputpos, decoder->compressed_length - decoder->compressed_offset);
+ memcpy(&dst[outputpos], decoder->compressed_start + decoder->compressed_offset, bytes_to_copy);
+ outputpos += bytes_to_copy;
+ decoder->compressed_offset += bytes_to_copy;
+ }
+
+ /* once we're out of that, copy from the secondary buffer */
+ if (outputpos < bytes && decoder->compressed_offset < decoder->compressed_length + decoder->compressed2_length)
+ {
+ uint32_t bytes_to_copy = MIN(bytes - outputpos, decoder->compressed2_length - (decoder->compressed_offset - decoder->compressed_length));
+ memcpy(&dst[outputpos], decoder->compressed2_start + decoder->compressed_offset - decoder->compressed_length, bytes_to_copy);
+ outputpos += bytes_to_copy;
+ decoder->compressed_offset += bytes_to_copy;
+ }
+
+ return outputpos;
+}
+
+/*-------------------------------------------------
+ * metadata_callback - handle STREAMINFO metadata
+ *-------------------------------------------------
+ */
+
+static void flac_decoder_metadata_callback(void *userdata, drflac_metadata *metadata)
+{
+ flac_decoder *decoder = userdata;
+
+ /* ignore all but STREAMINFO metadata */
+ if (metadata->type != DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO)
+ return;
+
+ /* parse out the data we care about */
+ decoder->sample_rate = metadata->data.streaminfo.sampleRate;
+ decoder->bits_per_sample = metadata->data.streaminfo.bitsPerSample;
+ decoder->channels = metadata->data.streaminfo.channels;
+}
+
+/*-------------------------------------------------
+ * write_callback - handle writes to the output
+ * stream
+ *-------------------------------------------------
+ */
+
+static void flac_decoder_write_callback(void *userdata, void *buffer, size_t bytes)
+{
+ int sampnum, chan;
+ int shift, blocksize;
+ flac_decoder * decoder = (flac_decoder *)userdata;
+ int16_t *sampbuf = (int16_t *)buffer;
+ int sampch = channels(decoder);
+ uint32_t offset = decoder->uncompressed_offset;
+ uint16_t usample;
+
+ /* interleaved case */
+ shift = decoder->uncompressed_swap ? 8 : 0;
+ blocksize = bytes / (sampch * sizeof(sampbuf[0]));
+ if (decoder->uncompressed_start[1] == NULL)
+ {
+ int16_t *dest = decoder->uncompressed_start[0] + offset * sampch;
+ for (sampnum = 0; sampnum < blocksize && offset < decoder->uncompressed_length; sampnum++, offset++)
+ for (chan = 0; chan < sampch; chan++) {
+ usample = (uint16_t)*sampbuf++;
+ *dest++ = (int16_t)((usample << shift) | (usample >> shift));
+ }
+ }
+
+ /* non-interleaved case */
+ else
+ {
+ for (sampnum = 0; sampnum < blocksize && offset < decoder->uncompressed_length; sampnum++, offset++)
+ for (chan = 0; chan < sampch; chan++) {
+ usample = (uint16_t)*sampbuf++;
+ if (decoder->uncompressed_start[chan] != NULL)
+ decoder->uncompressed_start[chan][offset] = (int16_t) ((usample << shift) | (usample >> shift));
+ }
+ }
+ decoder->uncompressed_offset = offset;
+}
+
+
+/*-------------------------------------------------
+ * seek_callback - handle seeks on the output
+ * stream
+ *-------------------------------------------------
+ */
+
+static drflac_bool32 flac_decoder_seek_callback(void *userdata, int offset, drflac_seek_origin origin)
+{
+ flac_decoder * decoder = (flac_decoder *)userdata;
+ uint32_t length = decoder->compressed_length + decoder->compressed2_length;
+
+ if (origin == drflac_seek_origin_start) {
+ uint32_t pos = offset;
+ if (pos <= length) {
+ decoder->compressed_offset = pos;
+ return 1;
+ }
+ } else if (origin == drflac_seek_origin_current) {
+ uint32_t pos = decoder->compressed_offset + offset;
+ if (pos <= length) {
+ decoder->compressed_offset = pos;
+ return 1;
+ }
+ }
+ return 0;
+}
+
#include <stdio.h>
#include <string.h>
-#include "huffman.h"
+#include <libchdr/huffman.h>
#define MAX(x,y) ((x) > (y) ? (x) : (y))
return decoder;
}
+void delete_huffman_decoder(struct huffman_decoder* decoder)
+{
+ if (decoder != NULL)
+ {
+ if (decoder->lookup != NULL)
+ free(decoder->lookup);
+ if (decoder->huffnode != NULL)
+ free(decoder->huffnode);
+ free(decoder);
+ }
+}
+
/*-------------------------------------------------
* decode_one - decode a single code from the
* huffman stream
nextalloc = decoder->numcodes;
while (listitems > 1)
{
+ int curitem;
/* remove lowest two items */
struct node_t* node1 = &(*list[--listitems]);
struct node_t* node0 = &(*list[--listitems]);
newnode->weight = node0->weight + node1->weight;
/* insert into list at appropriate location */
- int curitem;
for (curitem = 0; curitem < listitems; curitem++)
if (newnode->weight > list[curitem]->weight)
{
/* compute the number of bits in each code, and fill in another histogram */
for (curcode = 0; curcode < decoder->numcodes; curcode++)
{
+ struct node_t *curnode;
struct node_t* node = &decoder->huffnode[curcode];
node->numbits = 0;
node->bits = 0;
if (node->weight > 0)
{
/* determine the number of bits for this node */
- for (struct node_t *curnode = node; curnode->parent != NULL; curnode = curnode->parent)
+ for (curnode = node; curnode->parent != NULL; curnode = curnode->parent)
node->numbits++;
if (node->numbits == 0)
node->numbits = 1;
struct node_t* node = &decoder->huffnode[curcode];
if (node->numbits > 0)
{
+ int shift;
+ lookup_value *dest;
+ lookup_value *destend;
/* set up the entry */
lookup_value value = MAKE_LOOKUP(curcode, node->numbits);
/* fill all matching entries */
- int shift = decoder->maxbits - node->numbits;
- lookup_value *dest = &decoder->lookup[node->bits << shift];
- lookup_value *destend = &decoder->lookup[((node->bits + 1) << shift) - 1];
+ shift = decoder->maxbits - node->numbits;
+ dest = &decoder->lookup[node->bits << shift];
+ destend = &decoder->lookup[((node->bits + 1) << shift) - 1];
while (dest <= destend)
*dest++ = value;
}
SOURCES_C += \
$(DEPS_DIR)/crypto/md5.c \
$(DEPS_DIR)/crypto/sha1.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/bitmath.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/bitreader.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/cpu.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/crc.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/fixed.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/fixed_intrin_ssse3.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/float.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/format.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/lpc.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/lpc_intrin_avx2.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/lpc_intrin_sse2.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/lpc_intrin_sse41.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/lpc_intrin_sse.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/md5.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/memory.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/metadata_iterators.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/metadata_object.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/stream_decoder.c \
- $(DEPS_DIR)/flac-1.3.2/src/libFLAC/window.c \
$(DEPS_DIR)/lzma-16.04/C/Alloc.c \
$(DEPS_DIR)/lzma-16.04/C/Bra86.c \
$(DEPS_DIR)/lzma-16.04/C/Bra.c \
$(DEPS_DIR)/lzma-16.04/C/LzmaEnc.c \
$(DEPS_DIR)/lzma-16.04/C/LzmaLib.c \
$(DEPS_DIR)/lzma-16.04/C/Sort.c \
- $(DEPS_DIR)/libchdr/bitstream.c \
- $(DEPS_DIR)/libchdr/cdrom.c \
- $(DEPS_DIR)/libchdr/chd.c \
- $(DEPS_DIR)/libchdr/flac.c \
- $(DEPS_DIR)/libchdr/huffman.c
+ $(DEPS_DIR)/libchdr/src/libchdr_bitstream.c \
+ $(DEPS_DIR)/libchdr/src/libchdr_cdrom.c \
+ $(DEPS_DIR)/libchdr/src/libchdr_chd.c \
+ $(DEPS_DIR)/libchdr/src/libchdr_flac.c \
+ $(DEPS_DIR)/libchdr/src/libchdr_huffman.c
SOURCES_ASM :=
COREFLAGS := -ffast-math -funroll-loops -DHAVE_LIBRETRO -DNO_FRONTEND -DFRONTEND_SUPPORTS_RGB565 -DANDROID -DREARMED
-COREFLAGS += -DPACKAGE_VERSION=\"1.3.2\" -DFLAC__HAS_OGG=0 -DFLAC__NO_DLL -DHAVE_LROUND -DHAVE_STDINT_H -DHAVE_STDLIB_H -DFLAC__NO_DLL -D_7ZIP_ST -DHAVE_SYS_PARAM_H
-COREFLAGS += -DHAVE_CHD
+COREFLAGS += -DHAVE_CHD -D_7ZIP_ST
HAVE_ARI64=0
HAVE_LIGHTREC=0
LOCAL_SRC_FILES := $(SOURCES_C) $(SOURCES_ASM)
LOCAL_CFLAGS := $(COREFLAGS)
LOCAL_C_INCLUDES := $(ROOT_DIR)/include
-LOCAL_C_INCLUDES += $(DEPS_DIR)/crypto $(DEPS_DIR)/flac-1.3.2/include $(DEPS_DIR)/flac-1.3.2/src/libFLAC/include $(DEPS_DIR)/lzma-16.04/C $(DEPS_DIR)/libchdr
+LOCAL_C_INCLUDES += $(DEPS_DIR)/crypto $(DEPS_DIR)/lzma-16.04/C $(DEPS_DIR)/libchdr/include $(DEPS_DIR)/libchdr/include/libchdr
LOCAL_C_INCLUDES += $(LIBRETRO_COMMON)/include
LOCAL_C_INCLUDES += $(EXTRA_INCLUDES)
LOCAL_LDFLAGS := -Wl,-version-script=$(FRONTEND_DIR)/link.T
notaz.gp2x.de / pcsx_rearmed.git / commitdiff