// --- cut from here... --- //
// First, we'll need a DataSource that captures live audio:
AudioFormat format = new AudioFormat(AudioFormat.ULAW,
8000,
8,
1);
Vector devices= CaptureDeviceManager.getDeviceList( format);
CaptureDeviceInfo di= null;
if (devices.size() > 0) {
di = (CaptureDeviceInfo) devices.elementAt( 0);
}
else {
// exit if we could not find the relevant capture device.
System.exit(-1);
}
// Create a processor for this capture device & exit if we
// cannot create it
try {
Processor p = Manager.createProcessor(di.getLocator());
} catch (IOException e) {
System.exit(-1);
} catch (NoProcessorException e) {
System.exit(-1);
}
// at this point, we have succesfully created the processor.
// Realize it and block until it is configured.
processor.configure();
// block until it has been configured
processor.setContentDescriptor(
new ContentDescriptor( ContentDescriptor.RAW));
TrackControl track[] = processor.getTrackControls();
boolean encodingOk = false;
// Go through the tracks and try to program one of them to
// output ULAW_RTP data.
for (int i = 0; i < track.length; i++) {
if (!encodingOk && track[i] instanceof FormatControl) {
if (((FormatControl)track[i]).
setFormat( new AudioFormat(AudioFormat.ULAW_RTP,
8000,
8,
1)) == null) {
track[i].setEnabled(false);
}
else {
encodingOk = true;
}
}
else {
// we could not set this track to gsm, so disable it
track[i].setEnabled(false);
}
}
// Realize it and block until it is realized.
processor.realize();
// block until realized.
// get the output datasource of the processor and exit
// if we fail
DataSource ds = null;
try {
ds = processor.getDataOutput();
} catch (NotRealizedError e){
System.exit(-1);
}
// Create a SessionManager and hand over the
// datasource for SendStream creation.
SessionManager rtpsm = new com.sun.media.rtp.RTPSessionMgr();
// rtpsm.initSession(...);
// rtpsm.startSession(...);
try {
rtpsm.createSendStream(ds, 0);
} catch (IOException e) {
e.printStackTrace();
} catch( UnsupportedFormatException e) {
e.printStackTrace();
}
// --- ...until here --- //
