/*
* VorbisFormatConversionProvider.
*
* JavaZOOM : vorbisspi@javazoom.net
* http://www.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.spi.vorbis.sampled.convert;
import java.util.Arrays;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javazoom.spi.vorbis.sampled.file.VorbisEncoding;
import org.tritonus.share.sampled.Encodings;
import org.tritonus.share.sampled.convert.TEncodingFormatConversionProvider;
/**
* ConversionProvider for VORBIS files.
*/
public class VorbisFormatConversionProvider extends TEncodingFormatConversionProvider
{
private static final AudioFormat.Encoding PCM_SIGNED = Encodings.getEncoding("PCM_SIGNED");
private static final AudioFormat[] INPUT_FORMATS =
{
// mono
new AudioFormat(VorbisEncoding.VORBISENC, -1.0F, -1, 1, -1, -1.0F, false),
new AudioFormat(VorbisEncoding.VORBISENC, -1.0F, -1, 1, -1, -1.0F, true),
// stereo
new AudioFormat(VorbisEncoding.VORBISENC, -1.0F, -1, 2, -1, -1.0F, false),
new AudioFormat(VorbisEncoding.VORBISENC, -1.0F, -1, 2, -1, -1.0F, true),
};
private static final AudioFormat[] OUTPUT_FORMATS =
{
// mono, 16 bit signed
new AudioFormat(PCM_SIGNED, -1.0F, 16, 1, 2, -1.0F, false),
new AudioFormat(PCM_SIGNED, -1.0F, 16, 1, 2, -1.0F, true),
// stereo, 16 bit signed
new AudioFormat(PCM_SIGNED, -1.0F, 16, 2, 4, -1.0F, false),
new AudioFormat(PCM_SIGNED, -1.0F, 16, 2, 4, -1.0F, true),
};
/**
* Constructor.
*/
public VorbisFormatConversionProvider()
{
super(Arrays.asList(INPUT_FORMATS), Arrays.asList(OUTPUT_FORMATS));
}
/**
* Returns converted AudioInputStream.
*/
public AudioInputStream getAudioInputStream(AudioFormat targetFormat, AudioInputStream audioInputStream)
{
System.out.println(targetFormat+" "+audioInputStream.getFormat());
if (isConversionSupported(targetFormat, audioInputStream.getFormat()))
{
return new DecodedVorbisAudioInputStream(targetFormat, audioInputStream);
}
else
{
throw new IllegalArgumentException("conversion not supported");
}
}
}