// --- cut from here... --- //
// Find a capture device that will capture linear 8bit 8Khz
// audio
AudioFormat format = new AudioFormat(AudioFormat.LINEAR,
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);
}
// Since we have located a capturedevice, create a data
// source for it.
DataSource origDataSource= null;
try {
origDataSource = Manager.createDataSource(di.getLocator());
} catch (IOException e) {
System.exit(-1);
} catch (NoDataSourceException e) {
System.exit(-1);
}
SourceStream streams[] = ((PushDataSource)origDataSource)
.getStreams();
DataSource cloneableDataSource = null;
DataSource clonedDataSource = null;
if (streams.length == 1) {
cloneableDataSource
= Manager.createCloneableDataSource(origDataSource);
clonedDataSource
= ((SourceCloneable)cloneableDataSource).createClone();
}
else {
// DataSource has more than 1 stream and we should try to
// set the encodings of these streams to dvi and gsm
}
// at this point, we have a cloneable data source and its clone,
// Create one processor from each of these datasources.
Processor p1 = null;
try {
p1 = Manager.createProcessor(cloneableDataSource);
} catch (IOException e) {
System.exit(-1);
} catch (NoProcessorException e) {
System.exit(-1);
}
p1.configure();
// block until configured.
TrackControl track[] = p1.getTrackControls();
boolean encodingOk = false;
// Go through the tracks and try to program one of them
// to output gsm data
for (int i = 0; i < track.length; i++) {
if (!encodingOk && track[i] instanceof FormatControl) {
if (((FormatControl)track[i]).
setFormat( new AudioFormat(AudioFormat.GSM_RTP,
8000,
8,
1)) == null) {
track[i].setEnabled(false);
}
else {
encodingOk = true;
}
}
else {
track[i].setEnabled(false);
}
}
if (encodingOk) {
processor.realize();
// block until realized.
// ...
// get the output datasource of the processor
DataSource ds = null;
try {
ds = processor.getDataOutput();
} catch (NotRealizedError e) {
System.exit(-1);
}
// Now create the first SessionManager and hand over the
// first datasource for SendStream creation .
SessionManager rtpsm1
= new com.sun.media.rtp.RTPSessionMgr();
// rtpsm1.initSession(...);
// rtpsm1.startSession(...);
try {
rtpsm1.createSendStream(ds, // first datasource
0); // first sourcestream of
// first datasource
} catch (IOException e) {
e.printStackTrace();
} catch( UnsupportedFormatException e) {
e.printStackTrace();
}
}
// Now repeat the above with the cloned data source and
// set the encoding to dvi. i.e create a processor with
// inputdatasource clonedDataSource
// and set encoding of one of its tracks to dvi.
// create SessionManager giving it the output datasource of
// this processor.
// --- ...until here --- //
