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PONo capture devices found in FMJ
 

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    <p>Previously I was working with JMF, but JMF need to be installed, but I don't want to add this overhead. That's why I want be moved to FMJ. And FMJ is opensource. :)</p> <p>There is some sample example given with FMJ source. And there is a FMJStudio, from where I can run and transmit RTP audio captured from microphone.</p> <p>But when I want to Transmit RTP, using the source below, it couldn't find any capture device.</p> <p>The complete source can be found on: <strong>fmj-20070928-0938_2.zip</strong> in <a href="http://fmj-sf.net" rel="nofollow">FMJ</a> And the class name of this source class is <strong>SimpleVoiceTransmiter</strong>.</p> <pre><code> //final String urlStr = URLUtils.createUrlStr(new File("samplemedia/gulp2.wav"));//"file://samplemedia/gulp2.wav"; Format format; format = new AudioFormat(AudioFormat.ULAW_RTP, 8000, 8, 1); //format = new AudioFormat(AudioFormat.ULAW_RTP, 8000.0, 8, 1, AudioFormat.LITTLE_ENDIAN, AudioFormat.SIGNED); //format = new AudioFormat(BonusAudioFormatEncodings.ALAW_RTP, 8000, 8, 1); //format = new AudioFormat(BonusAudioFormatEncodings.SPEEX_RTP, 8000, 8, 1, -1, AudioFormat.SIGNED); //format = new AudioFormat(BonusAudioFormatEncodings.ILBC_RTP, 8000.0, 16, 1, AudioFormat.LITTLE_ENDIAN, AudioFormat.SIGNED); CaptureDeviceInfo di = null; //Set to true if you want to transmit audio from capture device, like microphone. if (true) { // First find a capture device that will capture linear audio // data at 8bit 8Khz AudioFormat captureFormat = new AudioFormat(AudioFormat.LINEAR, 8000, 8, 1); Vector devices = CaptureDeviceManager.getDeviceList(captureFormat); if (devices.size() &gt; 0) { di = (CaptureDeviceInfo) devices.elementAt(0); } else { System.err.println("No capture devices"); // exit if we could not find the relevant capturedevice. System.exit(-1); } } // Create a processor for this capturedevice &amp; exit if we // cannot create it Processor processor = null; try { //processor = Manager.createProcessor(new MediaLocator(urlStr)); processor = Manager.createProcessor(di.getLocator()); } catch (IOException e) { e.printStackTrace(); System.exit(-1); } catch (NoProcessorException e) { e.printStackTrace(); System.exit(-1); } // configure the processor processor.configure(); while (processor.getState() != Processor.Configured) { try { Thread.sleep(10); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } processor.setContentDescriptor(new ContentDescriptor(ContentDescriptor.RAW_RTP)); TrackControl track[] = processor.getTrackControls(); boolean encodingOk = false; // Go through the tracks and try to program one of them to // output g.711 data. for (int i = 0; i &lt; track.length; i++) { if (!encodingOk &amp;&amp; track[i] instanceof FormatControl) { if (((FormatControl) track[i]).setFormat(format) == null) { track[i].setEnabled(false); } else { encodingOk = true; } } else { // we could not set this track to g.711, so disable it track[i].setEnabled(false); } } // At this point, we have determined where we can send out // g.711 data or not. // realize the processor if (encodingOk) { if (!new net.sf.fmj.ejmf.toolkit.util.StateWaiter(processor).blockingRealize()) { System.err.println("Failed to realize"); return; } // get the output datasource of the processor and exit // if we fail DataSource ds = null; try { ds = processor.getDataOutput(); } catch (NotRealizedError e) { e.printStackTrace(); System.exit(-1); } // hand this datasource to manager for creating an RTP // datasink our RTP datasink will multicast the audio try { String url = "rtp://192.168.1.99:49150/audio/1"; MediaLocator m = new MediaLocator(url); DataSink d = Manager.createDataSink(ds, m); d.open(); d.start(); System.out.println("Starting processor"); processor.start(); Thread.sleep(30000); } catch (Exception e) { e.printStackTrace(); System.exit(-1); } } </code></pre> <p>When I run this source, The output is: <strong>No capture devices</strong></p> <p>What may be the problem? :-(</p> <p>Edit: I uninstalled the <strong>JMF</strong> from my system.</p>
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