/** Stops the transmission if already started */
public void stop() {
synchronized (this) {
if (processor != null) {
processor.stop();
processor.close();
processor = null;
rtptransmitter.close();
rtptransmitter = null;
}
}
}
/**
* Starts the transmission. Returns null if transmission started ok. Otherwise it returns a string
* with the reason why the setup failed.
*/
public synchronized String start() {
String result;
// Create a processor for the specified media locator
// and program it to output JPEG/RTP
result = createProcessor();
if (result != null) return result;
// Create an RTP session to transmit the output of the
// processor to the specified IP address and port no.
result = createTransmitter();
if (result != null) {
processor.close();
processor = null;
return result;
}
// Start the transmission
processor.start();
return null;
}