Problem Recording Audio

Question

Hi All,
I have an audio conferencing application which is working quite well. All of the audio is relayed through the server to the appropriate clients. I am in the process of making these meetings archivable; to do so I need to save the the incoming stream on the server side to a file while retransmitting it. The problem is that the client sends out the stream in RAW_RTP format (RTP won't send) and I can't find a way to create a datasink based on this type of audio. I get the error: Cannot find a DataSink for: com.sun.media.multiplexer.RawBufferMux$RawBufferDataSource. I have tried converting to several different types of formats, the only one that actually worked was .aiff but when I went to open it the file was corrupted. Is there any way to create a datasink based on received RAW_RTP stream?
Here is the code for saving the audio (on the server side):
        teacherArchiveProcessor = Manager.createProcessor(ds);
            if (!waitForState(teacherArchiveProcessor, Processor.Configured)){
                System.out.println("Error - Could not configure processor.");
                return;
           FileTypeDescriptor cd = new FileTypeDescriptor(FileTypeDescriptor.AIFF);
           teacherArchiveProcessor.setContentDescriptor(cd);
            TrackControl track = teacherArchiveProcessor.getTrackControls()[0];
            track.setFormat(track.getFormat());
            System.out.println("Track is set to transmit as:");
            System.out.println("  " + track.getSupportedFormats()[0]);
            if (!waitForState(teacherArchiveProcessor, Processor.Realized)){
                System.out.println("Error - Could not realize processor.");
                return;
            MediaLocator dest = new MediaLocator("file://archive.aiff");
            teacherArchiveDataSink = Manager.createDataSink(teacherArchiveProcessor.getDataOutput(), dest);
            teacherArchiveDataSink.open();
            teacherArchiveDataSink.start();
            //Start sending
            teacherArchiveProcessor.start();Here is the code for the sending out the audio (on the client side):
CaptureDeviceInfo di = (CaptureDeviceInfo) CaptureDeviceManager.
                    getDeviceList(new AudioFormat("linear")).firstElement();
            mediaLocator = di.getLocator();
            //Get the datasource
            dataSource = Manager.createDataSource(mediaLocator);
            //Create the processor
            processor = Manager.createProcessor(mediaLocator);
            if (!waitForState(processor, Processor.Configured)){
                System.out.println("Error - Could not configure processor.");
                return;
           ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP);
           processor.setContentDescriptor(cd);
            TrackControl track = processor.getTrackControls()[0];
            track.setFormat(new Format("LINEAR"));
            System.out.println("Track is set to transmit as:");
            System.out.println("  " + track.getFormat());
            if (!waitForState(processor, Processor.Realized)){
                System.out.println("Error - Could not realize processor.");
                return;
            dataOutput = processor.getDataOutput();
            //Create the transmitter
            PushBufferDataSource pbds = (PushBufferDataSource) dataOutput;
            SendStream sendStream = rtpSendManager.createSendStream(dataOutput, 0);          
            sendStream.start();
            //Start sending
            processor.start();
            sendingAudio = true;

Answer 1

I solved the issue. In case anyone else runs into the same issue you can save an incoming RAW_RTP stream by setting the content descriptor on the receiving side to FileTypeDescriptor.MPEG_AUDIO and setting the track to AudioFormat.MPEG. I found this out after hours and hours of trying random combinations until I found one that worked.