ce188d4d |
1 | /* libFLAC - Free Lossless Audio Codec |
2 | * Copyright (C) 2002-2009 Josh Coalson |
3 | * Copyright (C) 2011-2016 Xiph.Org Foundation |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * - Neither the name of the Xiph.org Foundation nor the names of its |
17 | * contributors may be used to endorse or promote products derived from |
18 | * this software without specific prior written permission. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | #ifndef FLAC__PRIVATE__OGG_DECODER_ASPECT_H |
34 | #define FLAC__PRIVATE__OGG_DECODER_ASPECT_H |
35 | |
36 | #include <ogg/ogg.h> |
37 | |
38 | #include "FLAC/ordinals.h" |
39 | #include "FLAC/stream_decoder.h" /* for FLAC__StreamDecoderReadStatus */ |
40 | |
41 | typedef struct FLAC__OggDecoderAspect { |
42 | /* these are storage for values that can be set through the API */ |
43 | FLAC__bool use_first_serial_number; |
44 | long serial_number; |
45 | |
46 | /* these are for internal state related to Ogg decoding */ |
47 | ogg_stream_state stream_state; |
48 | ogg_sync_state sync_state; |
49 | unsigned version_major, version_minor; |
50 | FLAC__bool need_serial_number; |
51 | FLAC__bool end_of_stream; |
52 | FLAC__bool have_working_page; /* only if true will the following vars be valid */ |
53 | ogg_page working_page; |
54 | FLAC__bool have_working_packet; /* only if true will the following vars be valid */ |
55 | ogg_packet working_packet; /* as we work through the packet we will move working_packet.packet forward and working_packet.bytes down */ |
56 | } FLAC__OggDecoderAspect; |
57 | |
58 | void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value); |
59 | void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect); |
60 | FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect); |
61 | void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect); |
62 | void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect); |
63 | void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect); |
64 | |
65 | typedef enum { |
66 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK = 0, |
67 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM, |
68 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC, |
69 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC, |
70 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION, |
71 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT, |
72 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR, |
73 | FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR |
74 | } FLAC__OggDecoderAspectReadStatus; |
75 | |
76 | typedef FLAC__OggDecoderAspectReadStatus (*FLAC__OggDecoderAspectReadCallbackProxy)(const void *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data); |
77 | |
78 | 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); |
79 | |
80 | #endif |