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/*
Audio File Library
Copyright (C) 1998, 2011, Michael Pruett <michael@68k.org>
Copyright (C) 2000, Silicon Graphics, Inc.
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.
*/
/*
WAVE.h
This file contains structures and constants related to the RIFF
WAVE sound file format.
*/
#ifndef WAVE_H
#define WAVE_H
#include "FileHandle.h"
#include <stdint.h>
#define _AF_WAVE_NUM_INSTPARAMS 7
extern const InstParamInfo _af_wave_inst_params[_AF_WAVE_NUM_INSTPARAMS];
#define _AF_WAVE_NUM_COMPTYPES 2
extern const int _af_wave_compression_types[_AF_WAVE_NUM_COMPTYPES];
struct UUID;
class WAVEFile : public _AFfilehandle
{
public:
static bool recognize(File *fh);
static AFfilesetup completeSetup(AFfilesetup);
WAVEFile();
status readInit(AFfilesetup);
status writeInit(AFfilesetup);
status update();
bool isInstrumentParameterValid(AUpvlist, int);
private:
AFfileoffset factOffset; /* start of fact (frame count) chunk */
AFfileoffset miscellaneousStartOffset;
AFfileoffset totalMiscellaneousSize;
AFfileoffset markOffset;
AFfileoffset dataSizeOffset;
/*
The following information is specified in the format
chunk and is for use with compressed data formats.
*/
uint32_t blockAlign, samplesPerBlock;
/*
The index into the coefficient array is of type
uint8_t, so we can safely limit msadpcmCoefficients to
be 256 coefficient pairs.
*/
int16_t msadpcmCoefficients[256][2];
status parseFrameCount(const Tag &type, uint32_t size);
status parseFormat(const Tag &type, uint32_t size);
status parseData(const Tag &type, uint32_t size);
status parsePlayList(const Tag &type, uint32_t size);
status parseCues(const Tag &type, uint32_t size);
status parseADTLSubChunk(const Tag &type, uint32_t size);
status parseINFOSubChunk(const Tag &type, uint32_t size);
status parseList(const Tag &type, uint32_t size);
status parseInstrument(const Tag &type, uint32_t size);
status writeFormat();
status writeFrameCount();
status writeMiscellaneous();
status writeCues();
status writeData();
bool readUUID(UUID *g);
bool writeUUID(const UUID *g);
};
#endif
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