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package jogamp.opengl.util.av;
import java.nio.ByteBuffer;
import java.util.Arrays;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.SourceDataLine;
import com.jogamp.opengl.util.av.AudioSink;
/***
* JavaSound Audio Sink
* <p>
* FIXME: Parameterize .. all configs .. best via an init-method, passing requested
* audio capabilities
* </p>
*/
public class JavaSoundAudioSink implements AudioSink {
// Chunk of audio processed at one time
public static final int BUFFER_SIZE = 1000;
public static final int SAMPLES_PER_BUFFER = BUFFER_SIZE / 2;
private static final boolean staticAvailable;
// Sample time values
// public static final double SAMPLE_TIME_IN_SECS = 1.0 / DEFAULT_SAMPLE_RATE;
// public static final double BUFFER_TIME_IN_SECS = SAMPLE_TIME_IN_SECS * SAMPLES_PER_BUFFER;
private javax.sound.sampled.AudioFormat format;
private DataLine.Info info;
private SourceDataLine auline;
private int bufferCount;
private final byte [] sampleData = new byte[BUFFER_SIZE];
private boolean initialized = false;
private AudioSink.AudioFormat chosenFormat = null;
private volatile boolean playRequested = false;
private float volume = 1.0f;
static {
boolean ok = false;
try {
AudioSystem.getAudioFileTypes();
ok = true;
} catch (final Throwable t) {
}
staticAvailable=ok;
}
@Override
public String toString() {
return "JavaSoundSink[init "+initialized+", dataLine "+info+", source "+auline+", bufferCount "+bufferCount+
", chosen "+chosenFormat+", jsFormat "+format;
}
@Override
public final float getPlaySpeed() { return 1.0f; } // FIXME
@Override
public final boolean setPlaySpeed(final float rate) {
return false; // FIXME
}
@Override
public final float getVolume() {
// FIXME
return volume;
}
@Override
public final boolean setVolume(final float v) {
// FIXME
volume = v;
return true;
}
@Override
public AudioSink.AudioFormat getPreferredFormat() {
return DefaultFormat;
}
@Override
public final int getMaxSupportedChannels() {
return 2;
}
@Override
public final boolean isSupported(final AudioSink.AudioFormat format) {
return true;
}
@Override
public boolean init(final AudioSink.AudioFormat requestedFormat, final float frameDuration, final int initialQueueSize, final int queueGrowAmount, final int queueLimit) {
if( !staticAvailable ) {
return false;
}
// Create the audio format we wish to use
format = new javax.sound.sampled.AudioFormat(requestedFormat.sampleRate, requestedFormat.sampleSize, requestedFormat.channelCount, requestedFormat.signed, !requestedFormat.littleEndian);
// Create dataline info object describing line format
info = new DataLine.Info(SourceDataLine.class, format);
// Clear buffer initially
Arrays.fill(sampleData, (byte) 0);
try{
// Get line to write data to
auline = (SourceDataLine) AudioSystem.getLine(info);
auline.open(format);
auline.start();
System.out.println("JavaSound audio sink");
initialized=true;
chosenFormat = requestedFormat;
} catch (final Exception e) {
initialized=false;
}
return true;
}
@Override
public final AudioFormat getChosenFormat() {
return chosenFormat;
}
@Override
public boolean isPlaying() {
return playRequested && auline.isRunning();
}
@Override
public void play() {
if( null != auline ) {
playRequested = true;
playImpl();
}
}
private void playImpl() {
if( playRequested && !auline.isRunning() ) {
auline.start();
}
}
@Override
public void pause() {
if( null != auline ) {
playRequested = false;
auline.stop();
}
}
@Override
public void flush() {
if( null != auline ) {
playRequested = false;
auline.stop();
auline.flush();
}
}
@Override
public final int getEnqueuedFrameCount() {
return 0; // FIXME
}
@Override
public int getFrameCount() {
return 1;
}
@Override
public int getQueuedFrameCount() {
return 0;
}
@Override
public boolean isInitialized() {
return initialized;
}
@Override
public void destroy() {
initialized = false;
chosenFormat = null;
// FIXEM: complete code!
}
@Override
public AudioFrame enqueueData(final int pts, final ByteBuffer byteBuffer, final int byteCount) {
final byte[] bytes = new byte[byteCount];
final int p = byteBuffer.position();
byteBuffer.get(bytes, 0, byteCount);
byteBuffer.position(p);
int written = 0;
int len;
int bytesLeft = byteCount;
while (bytesLeft > 0) {
len = auline.write(bytes, written, byteCount);
bytesLeft -= len;
written += len;
}
playImpl();
return new AudioDataFrame(pts, chosenFormat.getBytesDuration(byteCount), byteBuffer, byteCount);
}
@Override
public int getQueuedByteCount() {
return auline.getBufferSize() - auline.available();
}
@Override
public int getFreeFrameCount() {
return auline.available();
}
@Override
public int getQueuedTime() {
return getQueuedTimeImpl( getQueuedByteCount() );
}
private final int getQueuedTimeImpl(final int byteCount) {
final int bytesPerSample = chosenFormat.sampleSize >>> 3; // /8
return byteCount / ( chosenFormat.channelCount * bytesPerSample * ( chosenFormat.sampleRate / 1000 ) );
}
@Override
public final int getPTS() { return 0; } // FIXME
}
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