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- /* SpiralSynth
- * Copyleft (C) 2000 David Griffiths <dave@pawfal.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include <string>
-
- #ifndef WAVFILE
- #define WAVFILE
-
- #include <stdio.h>
- #include "Sample.h"
-
- struct CanonicalWavHeader
- {
- char RiffName[4];
- int RiffFileLength;
- char RiffTypeName[4];
-
- char FmtName[4];
- int FmtLength;
- short FmtTag;
- short FmtChannels;
- int FmtSamplerate;
- int FmtBytesPerSec;
- short FmtBlockAlign;
- short FmtBitsPerSample;
- };
-
- struct DataHeader
- {
- char DataName[4];
- int DataLengthBytes;
- };
-
- class WavFile
- {
- public:
- WavFile() : m_Stream(NULL), m_Samplerate(44100), m_DataStart(0) {}
- ~WavFile() {Close();}
-
- enum Mode{READ,WRITE};
- enum Channels{MONO,STEREO};
-
- int Open(string FileName, Mode mode, Channels channels=MONO);
- int Close();
- int Save(Sample &data);
- int Load(Sample &data);
- int Save(short *data, int Bytes);
- int Load(short *data);
- int SeekToChunk(int Pos);
- int LoadChunk(int NumSamples, Sample &ldata, Sample &rdata);
- int GetSize(); // in samples
- bool Recording() {return (m_Stream!=NULL);}
- void SetSamplerate(int s) { m_Samplerate=s; }
- int GetSamplerate() { return m_Header.FmtSamplerate; }
- bool IsStereo() { return (m_Header.FmtChannels==2); }
- bool IsOpen() { return m_Stream!=NULL; }
-
- private:
-
- FILE *m_Stream;
- int m_Samplerate;
-
- long m_DataStart;
- long m_CurSeekPos;
-
- CanonicalWavHeader m_Header;
- DataHeader m_DataHeader;
- };
-
- #endif
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