/*
* 11/19/04 1.0 moved to LGPL.
*
* 12/12/99 0.0.7 Renamed class, additional constructor arguments
* and larger write buffers. mdm@techie.com.
*
* 15/02/99 Java Conversion by E.B ,javalayer@javazoom.net
*
*-----------------------------------------------------------------------
* This program 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 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
package javazoom.jl.converter;
import javazoom.jl.decoder.Obuffer;
/**
* Implements an Obuffer by writing the data to
* a file in RIFF WAVE format.
*
* @since 0.0
*/
public class WaveFileObuffer extends Obuffer
{
private short[] buffer;
private short[] bufferp;
private int channels;
private WaveFile outWave;
/**
* Creates a new WareFileObuffer instance.
*
* @param number_of_channels
* The number of channels of audio data
* this buffer will receive.
*
* @param freq The sample frequency of the samples in the buffer.
*
* @param fileName The filename to write the data to.
*/
public WaveFileObuffer(int number_of_channels, int freq, String FileName)
{
if (FileName==null)
throw new NullPointerException("FileName");
buffer = new short[OBUFFERSIZE];
bufferp = new short[MAXCHANNELS];
channels = number_of_channels;
for (int i = 0; i < number_of_channels; ++i)
bufferp[i] = (short)i;
outWave = new WaveFile();
int rc = outWave.OpenForWrite (FileName,freq,(short)16,(short)channels);
}
/**
* Takes a 16 Bit PCM sample.
*/
public void append(int channel, short value)
{
buffer[bufferp[channel]] = value;
bufferp[channel] += channels;
}
/**
* Write the samples to the file (Random Acces).
*/
short[] myBuffer = new short[2];
public void write_buffer(int val)
{
int k = 0;
int rc = 0;
rc = outWave.WriteData(buffer, bufferp[0]);
// REVIEW: handle RiffFile errors.
/*
for (int j=0;j<bufferp[0];j=j+2)
{
//myBuffer[0] = (short)(((buffer[j]>>8)&0x000000FF) | ((buffer[j]<<8)&0x0000FF00));
//myBuffer[1] = (short) (((buffer[j+1]>>8)&0x000000FF) | ((buffer[j+1]<<8)&0x0000FF00));
myBuffer[0] = buffer[j];
myBuffer[1] = buffer[j+1];
rc = outWave.WriteData (myBuffer,2);
}
*/
for (int i = 0; i < channels; ++i) bufferp[i] = (short)i;
}
public void close()
{
outWave.Close();
}
/**
*
*/
public void clear_buffer()
{}
/**
*
*/
public void set_stop_flag()
{}
/*
* Create STDOUT buffer
*
*
public static Obuffer create_stdout_obuffer(MPEG_Args maplay_args)
{
Obuffer thebuffer = null;
int mode = maplay_args.MPEGheader.mode();
int which_channels = maplay_args.which_c;
if (mode == Header.single_channel || which_channels != MPEG_Args.both)
thebuffer = new FileObuffer(1,maplay_args.output_filename);
else
thebuffer = new FileObuffer(2,maplay_args.output_filename);
return(thebuffer);
}
*/
}