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101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
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/*
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Audio File Library
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Copyright (C) 1998-2000, 2003, 2010-2012, Michael Pruett <michael@68k.org>
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Copyright (C) 2002-2003, Davy Durham
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Copyright (C) 2000-2001, Silicon Graphics, Inc.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301 USA
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*/
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/*
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WAVE.h
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This file contains structures and constants related to the RIFF
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WAVE sound file format.
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*/
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#ifndef WAVE_H
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#define WAVE_H
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#include "Compiler.h"
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#include "FileHandle.h"
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#include <stdint.h>
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#define _AF_WAVE_NUM_INSTPARAMS 7
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extern const InstParamInfo _af_wave_inst_params[_AF_WAVE_NUM_INSTPARAMS];
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#define _AF_WAVE_NUM_COMPTYPES 4
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extern const int _af_wave_compression_types[_AF_WAVE_NUM_COMPTYPES];
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struct UUID;
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class WAVEFile : public _AFfilehandle
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{
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public:
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static bool recognize(File *fh);
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static AFfilesetup completeSetup(AFfilesetup);
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WAVEFile();
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status readInit(AFfilesetup) OVERRIDE;
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status writeInit(AFfilesetup) OVERRIDE;
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status update() OVERRIDE;
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bool isInstrumentParameterValid(AUpvlist, int) OVERRIDE;
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private:
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AFfileoffset m_factOffset; // start of fact (frame count) chunk
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AFfileoffset m_miscellaneousOffset;
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AFfileoffset m_markOffset;
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AFfileoffset m_dataSizeOffset;
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/*
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The index into the coefficient array is of type
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uint8_t, so we can safely limit msadpcmCoefficients to
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be 256 coefficient pairs.
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*/
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int m_msadpcmNumCoefficients;
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int16_t m_msadpcmCoefficients[256][2];
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status parseFrameCount(const Tag &type, uint32_t size);
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status parseFormat(const Tag &type, uint32_t size);
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status parseData(const Tag &type, uint32_t size);
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status parsePlayList(const Tag &type, uint32_t size);
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status parseCues(const Tag &type, uint32_t size);
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status parseADTLSubChunk(const Tag &type, uint32_t size);
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status parseINFOSubChunk(const Tag &type, uint32_t size);
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status parseList(const Tag &type, uint32_t size);
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status parseInstrument(const Tag &type, uint32_t size);
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status writeFormat();
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status writeFrameCount();
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status writeMiscellaneous();
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status writeCues();
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status writeData();
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bool readUUID(UUID *g);
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bool writeUUID(const UUID *g);
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bool writeZString(const char *);
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size_t zStringLength(const char *);
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void initCompressionParams();
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void initIMACompressionParams();
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void initMSADPCMCompressionParams();
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};
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#endif
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