add abstraction layer for pcm reading

[fdkaac.git] / src / wav_reader.h

/* 
 * Copyright (C) 2013 nu774
 * For conditions of distribution and use, see copyright notice in COPYING
 */
#ifndef WAV_READER_H
#define WAV_READER_H

#include "lpcm.h"
#include "pcm_reader.h"

enum wav_error_code {
    WAV_IO_ERROR = 1,
    WAV_NO_MEMORY,
    WAV_INVALID_FORMAT,
    WAV_UNSUPPORTED_FORMAT
};

typedef int (*wav_read_callback)(void *cookie, void *data, uint32_t size);
typedef int (*wav_seek_callback)(void *cookie, int64_t off, int whence);
typedef int64_t (*wav_tell_callback)(void *cookie);

typedef struct wav_io_context_t {
    wav_read_callback read;
    wav_seek_callback seek;
    wav_tell_callback tell;
} wav_io_context_t;

typedef struct wav_reader_t wav_reader_t;

pcm_reader_t *wav_open(wav_io_context_t *io_ctx, void *io_cookie,
                       int ignore_length);
pcm_reader_t *raw_open(wav_io_context_t *io_ctx, void *io_cookie,
                       const pcm_sample_description_t *desc);

#endif