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1 /*
2 * Copyright (C) 2013 nu774
3 * For conditions of distribution and use, see copyright notice in COPYING
4 */
5 #ifndef WAV_READER_H
6 #define WAV_READER_H
7
8 #include "lpcm.h"
9
10 enum wav_error_code {
11 WAV_IO_ERROR = 1,
12 WAV_NO_MEMORY,
13 WAV_INVALID_FORMAT,
14 WAV_UNSUPPORTED_FORMAT
15 };
16
17 typedef int (*wav_read_callback)(void *cookie, void *data, uint32_t size);
18 typedef int (*wav_seek_callback)(void *cookie, int64_t off, int whence);
19
20 typedef struct wav_io_context_t {
21 wav_read_callback read;
22 wav_seek_callback seek;
23 } wav_io_context_t;
24
25 typedef struct wav_reader_t wav_reader_t;
26
27 wav_reader_t *wav_open(wav_io_context_t *io_ctx, void *io_cookie,
28 int ignore_length);
29 const pcm_sample_description_t *wav_get_format(wav_reader_t *reader);
30 int wav_read_frames(wav_reader_t *reader, void *buffer, unsigned nframes);
31 int64_t wav_get_length(wav_reader_t *reader);
32 int64_t wav_get_position(wav_reader_t *reader);
33 void wav_teardown(wav_reader_t **reader);
34
35 #endif
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