public void run() {
// get line and buffer from ThreadLocals
SourceDataLine line = (SourceDataLine) localLine.get();
byte[] buffer = (byte[]) localBuffer.get();
if (line == null || buffer == null) {
// the line is unavailable
return;
}
// copy data to the line
try {
int numBytesRead = 0;
while (numBytesRead != -1) {
// if paused, wait until unpaused
synchronized (pausedLock) {
if (paused) {
try {
pausedLock.wait();
} catch (InterruptedException ex) {
return;
}
}
}
// copy data
numBytesRead = source.read(buffer, 0, buffer.length);
if (numBytesRead != -1) {
line.write(buffer, 0, numBytesRead);
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
/** Signals that a PooledThread has stopped. Drains and closes the Thread's Line. */
protected void threadStopped() {
SourceDataLine line = (SourceDataLine) localLine.get();
if (line != null) {
line.drain();
line.close();
}
}
/** Signals that a PooledThread has started. Creates the Thread's line and buffer. */
protected void threadStarted() {
// wait for the SoundManager constructor to finish
synchronized (this) {
try {
wait();
} catch (InterruptedException ex) {
}
}
// use a short, 100ms (1/10th sec) buffer for filters that
// change in real-time
int bufferSize =
playbackFormat.getFrameSize() * Math.round(playbackFormat.getSampleRate() / 10);
// create, open, and start the line
SourceDataLine line;
DataLine.Info lineInfo = new DataLine.Info(SourceDataLine.class, playbackFormat);
try {
line = (SourceDataLine) AudioSystem.getLine(lineInfo);
line.open(playbackFormat, bufferSize);
} catch (LineUnavailableException ex) {
// the line is unavailable - signal to end this thread
Thread.currentThread().interrupt();
return;
}
line.start();
// create the buffer
byte[] buffer = new byte[bufferSize];
// set this thread's locals
localLine.set(line);
localBuffer.set(buffer);
}
