48e2f01c |
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 |