include/FLAC/stream_decoder.h

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/* libFLAC - Free Lossless Audio Codec library
 * Copyright (C) 2000,2001,2002,2003  Josh Coalson
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Xiph.org Foundation nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef FLAC__STREAM_DECODER_H
#define FLAC__STREAM_DECODER_H

#include "export.h"
#include "format.h"

#ifdef __cplusplus
extern "C" {
#endif


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_END_OF_STREAM,
    FLAC__STREAM_DECODER_ABORTED,
    FLAC__STREAM_DECODER_UNPARSEABLE_STREAM,
    FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
    FLAC__STREAM_DECODER_ALREADY_INITIALIZED,
    FLAC__STREAM_DECODER_INVALID_CALLBACK,
    FLAC__STREAM_DECODER_UNINITIALIZED
} FLAC__StreamDecoderState;

extern FLAC_API const char * const FLAC__StreamDecoderStateString[];


typedef enum {

    FLAC__STREAM_DECODER_READ_STATUS_CONTINUE,
    FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM,
    FLAC__STREAM_DECODER_READ_STATUS_ABORT
} FLAC__StreamDecoderReadStatus;

extern FLAC_API const char * const FLAC__StreamDecoderReadStatusString[];


typedef enum {

    FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE,
    FLAC__STREAM_DECODER_WRITE_STATUS_ABORT
} FLAC__StreamDecoderWriteStatus;

extern FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[];


typedef enum {

    FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC,
    FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER,
    FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH
} FLAC__StreamDecoderErrorStatus;

extern FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[];


/***********************************************************************
 *
 * class FLAC__StreamDecoder
 *
 ***********************************************************************/

struct FLAC__StreamDecoderProtected;
struct FLAC__StreamDecoderPrivate;
typedef struct {
    struct FLAC__StreamDecoderProtected *protected_; /* avoid the C++ keyword 'protected' */
    struct FLAC__StreamDecoderPrivate *private_; /* avoid the C++ keyword 'private' */
} FLAC__StreamDecoder;

typedef FLAC__StreamDecoderReadStatus (*FLAC__StreamDecoderReadCallback)(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);

typedef FLAC__StreamDecoderWriteStatus (*FLAC__StreamDecoderWriteCallback)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);

typedef void (*FLAC__StreamDecoderMetadataCallback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);

typedef void (*FLAC__StreamDecoderErrorCallback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);


/***********************************************************************
 *
 * Class constructor/destructor
 *
 ***********************************************************************/

FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new();

FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder);


/***********************************************************************
 *
 * Public class method prototypes
 *
 ***********************************************************************/

FLAC_API FLAC__bool FLAC__stream_decoder_set_read_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderReadCallback value);

FLAC_API FLAC__bool FLAC__stream_decoder_set_write_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderWriteCallback value);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderMetadataCallback value);

FLAC_API FLAC__bool FLAC__stream_decoder_set_error_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorCallback value);

FLAC_API FLAC__bool FLAC__stream_decoder_set_client_data(FLAC__StreamDecoder *decoder, void *value);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);

FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder);

FLAC_API unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder);

FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder);

FLAC_API unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder);

FLAC_API unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder);

FLAC_API unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder);

FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_init(FLAC__StreamDecoder *decoder);

FLAC_API void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder);

FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder);

/* \} */

#ifdef __cplusplus
}
#endif

#endif

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