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annotate flac.h @ 2297:e6b2b2341c68

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Add Windows application manifest to opt-in to UTF-8
author Michael Pavone <pavone@retrodev.com>
date Sun, 19 Feb 2023 22:00:29 -0800
parents 789802d99629
children 9d68799f945b
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789802d99629 Add basic FLAC decoder and add FLAC playback support to the media player
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1 #ifndef FLAC_H_
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2 #define FLAC_H_
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3
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4 #include <stdint.h>
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5 #include <stdio.h>
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6
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7 typedef struct flac_file flac_file;
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8
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9 typedef uint8_t (*flac_read)(flac_file *f);
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10 typedef void (*flac_seek)(flac_file *f, uint32_t offset, uint8_t relative);
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11
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12 typedef struct {
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13 uint32_t allocated_samples;
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14 int32_t *decoded;
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15 } flac_subframe;
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16
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17 struct flac_file {
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18 uint64_t total_samples;
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19 uint64_t frame_start_sample;
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20 void *read_data;
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21 flac_read read_byte;
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22 flac_seek seek;
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23 flac_subframe *subframes;
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24 uint32_t offset;
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25 uint32_t buffer_size;
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26
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27 uint32_t frame_sample_pos;
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28 uint32_t remaining_frame_samples;
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29
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30 uint32_t sample_rate;
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31 uint32_t frame_sample_rate;
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32 uint32_t frame_block_size;
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33 uint8_t bits_per_sample;
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34 uint8_t frame_bits_per_sample;
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35 uint8_t channels;
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36 uint8_t frame_channels;
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37 uint8_t frame_joint_stereo;
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38 uint8_t subframe_alloc;
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39
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40 uint8_t cur_byte;
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41 uint8_t bits;
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42 };
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43
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44 flac_file *flac_file_from_buffer(void *buffer, uint32_t size);
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45 flac_file *flac_file_from_file(FILE *file);
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46 uint8_t flac_get_sample(flac_file *f, int16_t *out, uint8_t desired_channels);
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47
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48 #endif //FLAC_H_