How to solve the problem "cannot create a datasink for **(datasource)"
There is a forums that can send and receive RTP streams, and it can play on the client. Now I want to save it. I write the code according to the jmf2_0-guide, how ever it always throws the exception "cannot create a datasink for **(datasource)". The datasource is the RTP stream received from the server. Is there anything wrong with the data source or anything else?
here is the code:
public synchronized void update( ReceiveStreamEvent evt){
if(evt instanceof NewReceiveStreamEvent){
try{
stream = ((NewReceiveStreamEvent)evt).getReceiveStream();
DataSource ds = stream.getDataSource();
MediaLocator f = new MediaLocator("file://foo.au");
Manager.createDataSink(ds, f);
RTPControl ctl = (RTPControl)ds.getControl("javax.media.rtp.RTPControl");
if (ctl != null) {
System.err.println(" - Recevied new RTP stream: " + ctl.getFormat());
} else {
System.err.println(" - Recevied new RTP stream");
}
if (participant == null) {
System.err.println("The sender of this stream had yet to be identified.");
} else {
System.err.println("The stream comes from: " + participant.getCNAME());
}
// create a player by passing datasource to the Media Manager
Player p = javax.media.Manager.createPlayer(ds);
if (p == null) {
return;
}
p.addControllerListener(this);
p.realize();
PlayerWindow pw = new PlayerWindow(p, stream);
playerWindows.addElement(pw);
// Notify intialize() that a new stream had arrived.
synchronized (dataSync) {
dataReceived = true;
dataSync.notifyAll();
}
} catch (Exception e) {
System.err.println("NewReceiveStreamEvent exception " + e.getMessage());
return;
}
}
}
Does any one know how to solve this problem? How to save or how to create a datasink? Please help! Thank you!!
