forked from KolibriOS/kolibrios
137 lines
5.9 KiB
C
137 lines
5.9 KiB
C
/* libFLAC - Free Lossless Audio Codec library
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* Copyright (C) 2000,2001 Josh Coalson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef FLAC__FILE_DECODER_H
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#define FLAC__FILE_DECODER_H
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#include "stream_decoder.h"
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typedef enum {
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FLAC__FILE_DECODER_OK = 0,
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FLAC__FILE_DECODER_SEEKING,
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FLAC__FILE_DECODER_END_OF_FILE,
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FLAC__FILE_DECODER_ERROR_OPENING_FILE,
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FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR,
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FLAC__FILE_DECODER_SEEK_ERROR,
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FLAC__FILE_DECODER_STREAM_ERROR,
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FLAC__FILE_DECODER_MD5_ERROR,
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FLAC__FILE_DECODER_STREAM_DECODER_ERROR,
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FLAC__FILE_DECODER_ALREADY_INITIALIZED,
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FLAC__FILE_DECODER_INVALID_CALLBACK,
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FLAC__FILE_DECODER_UNINITIALIZED
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} FLAC__FileDecoderState;
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extern const char *FLAC__FileDecoderStateString[];
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/***********************************************************************
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*
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* class FLAC__FileDecoder : public FLAC__StreamDecoder
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*
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***********************************************************************/
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struct FLAC__FileDecoderProtected;
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struct FLAC__FileDecoderPrivate;
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typedef struct {
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struct FLAC__FileDecoderProtected *protected;
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struct FLAC__FileDecoderPrivate *private;
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} FLAC__FileDecoder;
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/***********************************************************************
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*
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* Class constructor/destructor
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*
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***********************************************************************/
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/*
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* Any parameters that are not set before FLAC__file_decoder_init()
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* will take on the defaults from the constructor, shown below.
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* For more on what the parameters mean, see the documentation.
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*
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* FLAC__bool md5_checking (DEFAULT: false) MD5 checking will be turned off if a seek is requested
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* (*write_callback)() (DEFAULT: NULL ) The callbacks are the only values that MUST be set before FLAC__file_decoder_init()
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* (*metadata_callback)() (DEFAULT: NULL )
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* (*error_callback)() (DEFAULT: NULL )
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* void* client_data (DEFAULT: NULL ) passed back through the callbacks
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*/
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FLAC__FileDecoder *FLAC__file_decoder_new();
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void FLAC__file_decoder_delete(FLAC__FileDecoder *);
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/***********************************************************************
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*
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* Public class method prototypes
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*
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***********************************************************************/
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/*
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* Various "set" methods. These may only be called when the decoder
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* is in the state FLAC__FILE_DECODER_UNINITIALIZED, i.e. after
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* FLAC__file_decoder_new() or FLAC__file_decoder_finish(), but
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* before FLAC__file_decoder_init(). If this is the case they will
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* return true, otherwise false.
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*
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* NOTE that these functions do not validate the values as many are
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* interdependent. The FLAC__file_decoder_init() function will do
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* this, so make sure to pay attention to the state returned by
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* FLAC__file_decoder_init().
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*
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* Any parameters that are not set before FLAC__file_decoder_init()
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* will take on the defaults from the constructor. NOTE that
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* FLAC__file_decoder_flush() or FLAC__file_decoder_reset() do
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* NOT reset the values to the constructor defaults.
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*/
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FLAC__bool FLAC__file_decoder_set_md5_checking(const FLAC__FileDecoder *decoder, FLAC__bool value);
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FLAC__bool FLAC__file_decoder_set_filename(const FLAC__FileDecoder *decoder, const char *value);
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FLAC__bool FLAC__file_decoder_set_write_callback(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderWriteStatus (*value)(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *buffer[], void *client_data));
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FLAC__bool FLAC__file_decoder_set_metadata_callback(const FLAC__FileDecoder *decoder, void (*value)(const FLAC__FileDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data));
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FLAC__bool FLAC__file_decoder_set_error_callback(const FLAC__FileDecoder *decoder, void (*value)(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data));
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FLAC__bool FLAC__file_decoder_set_client_data(const FLAC__FileDecoder *decoder, void *value);
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/*
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* Various "get" methods
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*/
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FLAC__FileDecoderState FLAC__file_decoder_get_state(const FLAC__FileDecoder *decoder);
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FLAC__bool FLAC__file_decoder_get_md5_checking(const FLAC__FileDecoder *decoder);
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/*
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* Initialize the instance; should be called after construction and
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* 'set' calls but before any of the 'process' or 'seek' calls. Will
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* set and return the decoder state, which will be FLAC__FILE_DECODER_OK
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* if initializationsucceeded.
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*/
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FLAC__FileDecoderState FLAC__file_decoder_init(FLAC__FileDecoder *decoder);
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/*
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* Flush the decoding buffer, release resources, and return the decoder
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* state to FLAC__FILE_DECODER_UNINITIALIZED. Only returns false if
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* md5_checking is set AND the stored MD5 sum is non-zero AND the stored
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* MD5 sum and computed MD5 sum do not match.
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*/
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FLAC__bool FLAC__file_decoder_finish(FLAC__FileDecoder *decoder);
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/*
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* Methods for decoding the data
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*/
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FLAC__bool FLAC__file_decoder_process_whole_file(FLAC__FileDecoder *decoder);
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FLAC__bool FLAC__file_decoder_process_metadata(FLAC__FileDecoder *decoder);
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FLAC__bool FLAC__file_decoder_process_one_frame(FLAC__FileDecoder *decoder);
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FLAC__bool FLAC__file_decoder_process_remaining_frames(FLAC__FileDecoder *decoder);
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FLAC__bool FLAC__file_decoder_seek_absolute(FLAC__FileDecoder *decoder, FLAC__uint64 sample);
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#endif
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