I have a runnable Game.class and a runnable OggStreamer.class, to allow the music to run in its own separate thread, which I send as a parameter for the Game-class to use. When I run the game from my IDE the OggStreamer always works, but when I’ve exported it to a .jar-file, it only works 1/3 of the times I start it up. And it’s not like the first piece of music doesn’t start, and then the next piece of music started will play…it doesn’t work at all, until I’ve started the game a few times.
Has any of you good people had a similar problem? I could understand it if it didn’t work at all, which could indicate there was something wrong with the file-references to the music inside the jar-file…but it DOES work, just not consistently outside the IDE. I’ve seen similar posts around the web, but none have any definitive answers to them. I’m using vorbisspi 1.0.3, jorbis 0.0.15, tritonus_share and jogg 0.0.7 as referenced libraries for playing the ogg-files, if that helps.
EDIT: The ogg-files are running a sample rate of 44100Hz, Stereo, encoded with variable bitrate 128-256 Kbps.
They are between 1 and 15mb in filesize.
I’m running Windows 7 64-bit.
IDE: IBM Rational Software Architect (Eclipse)
NOTE: This is my first attempt at Game-programming, and I know it’s not very pretty and that I am a sort of newbie 
There are many things I’d change about the general design, but I’m using this as a project to help me understand the problems I’ll encounter when I sit down to design a real framework for my next game. I’m on the third semester of Computer Science, so I’ve coded quite a lot, just never any games. Mostly apps.
Game.class uses the OggStreamer-class as such:
if(musicStreamer!=null && !musicStreamer.getFilename().equals("/snm/sound/oggs/Prelude.ogg")){
if(!musicStreamer.isStop())musicStreamer.stopLoop();
musicStreamer.startLoop("/snm/sound/oggs/Prelude.ogg");
}
public class Start {
public static void main(String[] args) throws InterruptedException{
Thread.setDefaultUncaughtExceptionHandler(new ExceptionHandler());
OggStreamer musicStreamer = new OggStreamer();
ExecutorService threadExecutor = Executors.newCachedThreadPool();
// Give Game a running and ready musicStreamer thread
Game game = new Game(musicStreamer);
game.init();
// start game thread
threadExecutor.execute( musicStreamer ); // start task1
threadExecutor.execute( game ); // start task2
threadExecutor.shutdown();
}
}
public class OggStreamer implements Runnable{
private URL url;
private AudioInputStream stream;
private AudioInputStream decodedStream;
private AudioFormat format;
private AudioFormat decodedFormat;
private boolean stop, running;
String filename = "";
SourceDataLine line = null;
public OggStreamer() {
this.stop = true;
this.running = true;
this.url = null;
}
public void run() {
while(running){
while (!this.stop) {
System.out.println("Playing Loop");
try {
// Get AudioInputStream from given file.
this.stream = AudioSystem.getAudioInputStream(this.url);
this.decodedStream = null;
if (this.stream != null) {
this.format = this.stream.getFormat();
this.decodedFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
this.format.getSampleRate(), 16,
this.format.getChannels(),
this.format.getChannels() * 2,
this.format.getSampleRate(), false);
// Get AudioInputStream that will be decoded by underlying
// VorbisSPI
this.decodedStream = AudioSystem.getAudioInputStream(
this.decodedFormat, this.stream);
}else{
JOptionPane.showMessageDialog(null, "Stream = null!");
}
} catch (Exception e) {
// Do nothing
System.out.println("Could not get or decode audiostream");
}
line = null;
try {
line = this.getSourceDataLine(this.decodedFormat);
FloatControl volume = (FloatControl)line.getControl(FloatControl.Type.MASTER_GAIN);
volume.setValue(1);
} catch (LineUnavailableException lue) {
// Do nothing
JOptionPane.showMessageDialog(null, "Line is unavailable!");
}
if (line != null) {
try {
byte[] data = new byte[4096];
// Start
line.start();
int nBytesRead = 0;
while (nBytesRead != -1) {
nBytesRead = this.decodedStream.read(data, 0,
data.length);
if (nBytesRead != -1) {
line.write(data, 0, nBytesRead);
}
if (this.stop) {
break;
}
}
// Stop
line.drain();
line.stop();
line.close();
} catch (IOException io) {
// Do nothing
JOptionPane.showMessageDialog(null, "Line cannot start!");
}
}
}
}
}
private SourceDataLine getSourceDataLine(AudioFormat audioFormat)
throws LineUnavailableException {
SourceDataLine res = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
audioFormat);
res = (SourceDataLine) AudioSystem.getLine(info);
res.open(audioFormat);
return res;
}
public void startLoop(String filenameString) {
this.filename = filenameString;
System.out.println("Starting loop with: "+filenameString);
this.url = this.getClass().getResource(filenameString);
this.stop = false;
}
public void stopLoop() {
System.out.println("Stopping loop");
try {
if(this.decodedStream!=null)this.decodedStream.close();
if(this.stream!=null)this.stream.close();
} catch (IOException e) {
}
this.stop = true;
this.url = null;
}
public boolean isStop() {
return stop;
}
public void setStop(boolean stop) {
this.stop = stop;
}
public URL getUrl() {
return url;
}
public void setUrl(String string) {
this.filename = string;
this.url = this.getClass().getResource(string);
}
public String getFilename() {
return filename;
}
}
