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1 | // license:BSD-3-Clause\r |
2 | // copyright-holders:Aaron Giles\r |
3 | /***************************************************************************\r |
4 | \r |
5 | flac.h\r |
6 | \r |
7 | FLAC compression wrappers\r |
8 | \r |
9 | ***************************************************************************/\r |
10 | \r |
11 | #pragma once\r |
12 | \r |
13 | #ifndef __FLAC_H__\r |
14 | #define __FLAC_H__\r |
15 | \r |
16 | #include <stdint.h>\r |
17 | #include "FLAC/all.h"\r |
18 | \r |
19 | //**************************************************************************\r |
20 | // TYPE DEFINITIONS\r |
21 | //**************************************************************************\r |
22 | \r |
23 | typedef struct _flac_decoder flac_decoder;\r |
24 | struct _flac_decoder {\r |
25 | // output state\r |
26 | FLAC__StreamDecoder* decoder; // actual encoder\r |
27 | uint32_t sample_rate; // decoded sample rate\r |
28 | uint8_t channels; // decoded number of channels\r |
29 | uint8_t bits_per_sample; // decoded bits per sample\r |
30 | uint32_t compressed_offset; // current offset in compressed data\r |
31 | const FLAC__byte * compressed_start; // start of compressed data\r |
32 | uint32_t compressed_length; // length of compressed data\r |
33 | const FLAC__byte * compressed2_start; // start of compressed data\r |
34 | uint32_t compressed2_length; // length of compressed data\r |
35 | int16_t * uncompressed_start[8]; // pointer to start of uncompressed data (up to 8 streams)\r |
36 | uint32_t uncompressed_offset; // current position in uncompressed data\r |
37 | uint32_t uncompressed_length; // length of uncompressed data\r |
38 | int uncompressed_swap; // swap uncompressed sample data\r |
39 | uint8_t custom_header[0x2a]; // custom header\r |
40 | };\r |
41 | \r |
42 | // ======================> flac_decoder\r |
43 | \r |
44 | void flac_decoder_init(flac_decoder* decoder);\r |
45 | void flac_decoder_free(flac_decoder* decoder);\r |
46 | 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);\r |
47 | int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian);\r |
48 | uint32_t flac_decoder_finish(flac_decoder* decoder);\r |
49 | \r |
50 | #endif // __FLAC_H__\r |