public Control[] getControls() {
if (dataLine == null) {
return new Control[0];
} else {
return dataLine.getControls();
}
}
/** Opens the line. */
protected void openLine() throws LineUnavailableException {
if (m_line != null) {
AudioFormat audioFormat = m_audioInputStream.getFormat();
int buffersize = lineBufferSize;
if (buffersize <= 0) {
buffersize = m_line.getBufferSize();
}
m_lineCurrentBufferSize = buffersize;
m_line.open(audioFormat, buffersize);
log.info("Open Line : BufferSize=" + buffersize);
/*-- Display supported controls --*/
Control[] c = m_line.getControls();
for (int p = 0; p < c.length; p++) {
log.info("Controls : " + c[p].toString());
}
/*-- Is Gain Control supported ? --*/
if (m_line.isControlSupported(FloatControl.Type.MASTER_GAIN)) {
m_gainControl = (FloatControl) m_line.getControl(FloatControl.Type.MASTER_GAIN);
log.info(
"Master Gain Control : ["
+ m_gainControl.getMinimum()
+ ","
+ m_gainControl.getMaximum()
+ "] "
+ m_gainControl.getPrecision());
}
/*-- Is Pan control supported ? --*/
if (m_line.isControlSupported(FloatControl.Type.PAN)) {
m_panControl = (FloatControl) m_line.getControl(FloatControl.Type.PAN);
log.info(
"Pan Control : ["
+ m_panControl.getMinimum()
+ ","
+ m_panControl.getMaximum()
+ "] "
+ m_panControl.getPrecision());
}
}
}
/**
* Open the plugin. Must be called after the formats have been determined and before "process" is
* called.
*
* <p>Open the DataLine.
*/
public void open() throws ResourceUnavailableException {
javax.sound.sampled.AudioFormat audioFormat = convertFormat(inputFormat);
logger.info("opening with javax.sound format: " + audioFormat);
try {
if (!inputFormat.getEncoding().equals(AudioFormat.LINEAR)) {
logger.info("JavaSoundRenderer: Audio format is not linear, creating conversion");
if (inputFormat.getEncoding().equals(AudioFormat.ULAW))
codec =
new net.sf.fmj.media.codec.audio.ulaw
.Decoder(); // much more efficient than JavaSoundCodec
else if (inputFormat.getEncoding().equals(AudioFormat.ALAW))
codec =
new net.sf.fmj.media.codec.audio.alaw
.Decoder(); // much more efficient than JavaSoundCodec
else
throw new ResourceUnavailableException(
"Unsupported input format encoding: " + inputFormat.getEncoding());
// codec = new net.sf.fmj.media.codec.JavaSoundCodec();
codec.setInputFormat(inputFormat);
final Format[] outputFormats = codec.getSupportedOutputFormats(inputFormat);
if (outputFormats.length < 1)
throw new ResourceUnavailableException(
"Unable to get an output format for input format: " + inputFormat);
final AudioFormat codecOutputFormat =
(AudioFormat) outputFormats[0]; // TODO: choose the best quality one.
codec.setOutputFormat(codecOutputFormat);
audioFormat = convertFormat(codecOutputFormat);
codec.open();
logger.info(
"JavaSoundRenderer: Audio format is not linear, created conversion from "
+ inputFormat
+ " to "
+ codecOutputFormat);
}
sourceLine = getSourceDataLine(audioFormat);
sourceLine.open(audioFormat);
{
FloatControl gainFloatControl = null;
BooleanControl muteBooleanControl = null;
try {
gainFloatControl = (FloatControl) sourceLine.getControl(FloatControl.Type.MASTER_GAIN);
} catch (Exception e) {
e.printStackTrace();
}
try {
muteBooleanControl = (BooleanControl) sourceLine.getControl(BooleanControl.Type.MUTE);
} catch (Exception e) {
e.printStackTrace();
}
// TODO add other controls
JavaSoundGainControl gainControl =
new JavaSoundGainControl(gainFloatControl, muteBooleanControl);
controls.addControl(gainControl);
}
logControls(sourceLine.getControls());
} catch (LineUnavailableException e) {
throw new ResourceUnavailableException(e.getMessage());
}
}
