import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.BooleanControl;
public class AudioChannelPlayer
{
private static final boolean DEBUG = true;
private static final int BUFFER_SIZE = 16384;
public static void main(String[] args)
{
// TODO: set AudioFormat after the first soundfile
AudioFormat audioFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
44100.0F, 16, 2, 4, 44100.0F, true);
SourceDataLine line = null;
try
{
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
line = (SourceDataLine) AudioSystem.getLine(info);
line.open(audioFormat, line.getBufferSize());
}
catch (LineUnavailableException e)
{
e.printStackTrace();
}
line.start();
AudioChannel channel = new AudioChannel(line);
channel.start();
for (int nArgPos = 0; nArgPos < args.length; nArgPos++)
{
if (args[nArgPos].startsWith("-s"))
{
String strDuration = args[nArgPos].substring(2);
int nDuration = Integer.parseInt(strDuration);
handleSilence(nDuration, channel);
}
else
{
handleFile(args[nArgPos], channel);
}
}
// TODO: instead of waiting a fixed amount of time, wait until the queue of AudioChannel is empty.
try
{
Thread.sleep(10000);
}
catch (InterruptedException e)
{
}
}
private static void handleFile(String strFilename, AudioChannel channel)
{
File audioFile = new File(strFilename);
AudioInputStream audioInputStream = null;
try
{
audioInputStream = AudioSystem.getAudioInputStream(audioFile);
}
catch (Exception e)
{
/*
* In case of an exception, we dump the exception
* including the stack trace to the console output.
* Then, we exit the program.
*/
e.printStackTrace();
System.exit(1);
}
if (audioInputStream != null)
{
boolean bSuccessfull = channel.addAudioInputStream(audioInputStream);
if (! bSuccessfull)
{
out("Warning: could not enqueue AudioInputStream; presumably formats don't match!");
}
}
}
private static void handleSilence(int nDuration, AudioChannel channel)
{
}
private static void out(String strMessage)
{
System.out.println(strMessage);
}
}
/*** AudioChannelPlayer.java ***/
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