mirror of https://github.com/xiph/flac
88 lines
3.7 KiB
C
88 lines
3.7 KiB
C
/* libFLAC - Free Lossless Audio Coder library
|
|
* Copyright (C) 2000 Josh Coalson
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef FLAC__STREAM_DECODER_H
|
|
#define FLAC__STREAM_DECODER_H
|
|
|
|
#include "format.h"
|
|
|
|
typedef enum {
|
|
FLAC__STREAM_DECODER_SEARCH_FOR_METADATA = 0,
|
|
FLAC__STREAM_DECODER_READ_METADATA,
|
|
FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC,
|
|
FLAC__STREAM_DECODER_READ_FRAME,
|
|
FLAC__STREAM_DECODER_RESYNC_IN_HEADER,
|
|
FLAC__STREAM_DECODER_END_OF_STREAM,
|
|
FLAC__STREAM_DECODER_ABORTED,
|
|
FLAC__STREAM_DECODER_UNPARSEABLE_STREAM,
|
|
FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
|
|
FLAC__STREAM_DECODER_UNINITIALIZED
|
|
} FLAC__StreamDecoderState;
|
|
extern const char *FLAC__StreamDecoderStateString[];
|
|
|
|
typedef enum {
|
|
FLAC__STREAM_DECODER_READ_CONTINUE,
|
|
FLAC__STREAM_DECODER_READ_END_OF_STREAM,
|
|
FLAC__STREAM_DECODER_READ_ABORT
|
|
} FLAC__StreamDecoderReadStatus;
|
|
extern const char *FLAC__StreamDecoderReadStatusString[];
|
|
|
|
typedef enum {
|
|
FLAC__STREAM_DECODER_WRITE_CONTINUE,
|
|
FLAC__STREAM_DECODER_WRITE_ABORT
|
|
} FLAC__StreamDecoderWriteStatus;
|
|
extern const char *FLAC__StreamDecoderWriteStatusString[];
|
|
|
|
typedef enum {
|
|
FLAC__STREAM_DECODER_ERROR_LOST_SYNC
|
|
} FLAC__StreamDecoderErrorStatus;
|
|
extern const char *FLAC__StreamDecoderErrorStatusString[];
|
|
|
|
struct FLAC__StreamDecoderPrivate;
|
|
typedef struct {
|
|
/* these fields are read-only and valid as of the last write_callback() */
|
|
unsigned channels;
|
|
FLAC__ChannelAssignment channel_assignment;
|
|
unsigned bits_per_sample;
|
|
unsigned sample_rate; /* in Hz */
|
|
unsigned blocksize; /* in samples (per channel) */
|
|
FLAC__StreamDecoderState state; /* must be FLAC__STREAM_DECODER_UNINITIALIZED when passed to FLAC__stream_decoder_init() */
|
|
struct FLAC__StreamDecoderPrivate *guts; /* must be 0 when passed to FLAC__stream_decoder_init() */
|
|
} FLAC__StreamDecoder;
|
|
|
|
FLAC__StreamDecoder *FLAC__stream_decoder_get_new_instance();
|
|
void FLAC__stream_decoder_free_instance(FLAC__StreamDecoder *decoder);
|
|
FLAC__StreamDecoderState FLAC__stream_decoder_init(
|
|
FLAC__StreamDecoder *decoder,
|
|
FLAC__StreamDecoderReadStatus (*read_callback)(const FLAC__StreamDecoder *decoder, byte buffer[], unsigned *bytes, void *client_data),
|
|
FLAC__StreamDecoderWriteStatus (*write_callback)(const FLAC__StreamDecoder *decoder, const FLAC__FrameHeader *header, const int32 *buffer[], void *client_data),
|
|
void (*metadata_callback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data),
|
|
void (*error_callback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data),
|
|
void *client_data
|
|
);
|
|
void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_process_whole_stream(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_process_metadata(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_process_one_frame(FLAC__StreamDecoder *decoder);
|
|
bool FLAC__stream_decoder_process_remaining_frames(FLAC__StreamDecoder *decoder);
|
|
|
|
#endif
|