/*
* 21.04.2004 Original verion. davagin@udm.ru.
*-----------------------------------------------------------------------
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
package davaguine.jmac.info;
import davaguine.jmac.tools.ByteArrayReader;
import davaguine.jmac.tools.File;
import java.io.IOException;
/**
* Author: Dmitry Vaguine
* Date: 04.03.2004
* Time: 14:51:31
*/
public class WaveFormat {
public short wFormatTag; /* format type */
public short nChannels; /* number of channels (i.e. mono, stereo...) */
public int nSamplesPerSec; /* sample rate */
public int nAvgBytesPerSec; /* for buffer estimation */
public short nBlockAlign; /* block size of data */
public short wBitsPerSample; /* number of bits per sample of mono data */
public short cbSize; /* the count in bytes of the size of */
public final static int WAV_HEADER_SIZE = 16;
public static void FillWaveFormatEx(WaveFormat pWaveFormatEx, int nSampleRate, int nBitsPerSample, int nChannels) {
pWaveFormatEx.cbSize = 0;
pWaveFormatEx.nSamplesPerSec = nSampleRate;
pWaveFormatEx.wBitsPerSample = (short) nBitsPerSample;
pWaveFormatEx.nChannels = (short) nChannels;
pWaveFormatEx.wFormatTag = 1;
pWaveFormatEx.nBlockAlign = (short) ((pWaveFormatEx.wBitsPerSample / 8) * pWaveFormatEx.nChannels);
pWaveFormatEx.nAvgBytesPerSec = pWaveFormatEx.nBlockAlign * pWaveFormatEx.nSamplesPerSec;
}
public void readHeader(File io) throws IOException {
ByteArrayReader reader = new ByteArrayReader(io, WAV_HEADER_SIZE);
wFormatTag = reader.readShort();
nChannels = reader.readShort();
nSamplesPerSec = reader.readInt();
nAvgBytesPerSec = reader.readInt();
nBlockAlign = reader.readShort();
wBitsPerSample = reader.readShort();
}
}