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87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/*
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* WavFile.h
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*
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* Description: Wraps working with WAV files
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*
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* Copyright (c) 2004 Alexander Djourik. All rights reserved.
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* Copyright (c) 2004 Pavel Zhilin. All rights reserved.
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*
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* aint with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Please see the file COPYING in this directory for full copyright
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* information.
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*/
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#pragma once
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#define RIFF_SIGN 0x46464952
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#define WAVE_SIGN 0x45564157
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#define fmt_SIGN 0x20746D66
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#define data_SIGN 0x61746164
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#ifdef _WINDLL
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#define DllExport __declspec( dllexport )
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#else
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#define DllExport
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#endif
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namespace TTALib
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{
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class DllExport WaveFile
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{
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TTAError errNo;
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public:
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HANDLE fd;
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struct {
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unsigned long ChunkID;
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unsigned long ChunkSize;
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unsigned long Format;
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unsigned long Subchunk1ID;
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unsigned long Subchunk1Size;
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unsigned short AudioFormat;
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unsigned short NumChannels;
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unsigned long SampleRate;
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unsigned long ByteRate;
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unsigned short BlockAlign;
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unsigned short BitsPerSample;
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} wave_hdr;
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struct {
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unsigned long SubchunkID;
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unsigned long SubchunkSize;
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} subchunk_hdr;
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WaveFile ();
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~WaveFile ();
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HANDLE Create (const char *filename);
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HANDLE Open (const char *filename);
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bool ReadHeaders ();
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bool Read(long *data, long byte_size, unsigned long *len);
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bool WriteHeaders ();
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bool Write(long *data, long byte_size, long num_chan, unsigned long *len);
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void Close ();
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TTAError GetErrNo () const;
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};
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};
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