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POHow to play sound from a IP in java with Android
 

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    <p>I want to run a radio station from a hill top with the studio in the valley using a radio Ethernet link of 1.1 mbs data rate below is an example code (below) that I found.</p> <p>But I want the code to:</p> <ol> <li>Load a text file containing the IPv4 IP address to receive sound</li> <li>Read a true or false from the file re transmit from the android for another to receive to save data on such a slow connection.</li> </ol> <p>Can someone help please?</p> <pre><code>import java.io.IOException; import java.util.Vector; import javax.media.CaptureDeviceInfo; import javax.media.CaptureDeviceManager; import javax.media.DataSink; import javax.media.Manager; import javax.media.MediaLocator; import javax.media.NoPlayerException; import javax.media.NoProcessorException; import javax.media.NotRealizedError; import javax.media.Player; import javax.media.Processor; import javax.media.control.FormatControl; import javax.media.control.TrackControl; import javax.media.format.AudioFormat; import javax.media.protocol.ContentDescriptor; import javax.media.protocol.DataSource; public class SimpleVoiceTransmiter { /** * @param args */ public static void main(String[] args) { // First find a capture device that will capture linear audio // data at 8bit 8Khz AudioFormat format= new AudioFormat(AudioFormat.LINEAR, 8000, 8, 1); Vector devices= CaptureDeviceManager.getDeviceList( format); CaptureDeviceInfo di= null; if (devices.size() &gt; 0) { di = (CaptureDeviceInfo) devices.elementAt( 0); } else { // 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(di.getLocator()); } catch (IOException e) { System.exit(-1); } catch (NoProcessorException e) { System.exit(-1); } // configure the processor processor.configure(); while (processor.getState() != Processor.Configured){ try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } processor.setContentDescriptor( new ContentDescriptor( ContentDescriptor.RAW)); TrackControl track[] = processor.getTrackControls(); boolean encodingOk = false; // Go through the tracks and try to program one of them to // output gsm data. for (int i = 0; i &lt; track.length; i++) { if (!encodingOk &amp;&amp; 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 { // we could not set this track to gsm, so disable it track[i].setEnabled(false); } } // At this point, we have determined where we can send out // gsm data or not. // realize the processor if (encodingOk) { processor.realize(); while (processor.getState() != Processor.Realized){ try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } // get the output datasource of the processor and exit // if we fail DataSource ds = null; try { ds = processor.getDataOutput(); } catch (NotRealizedError e) { System.exit(-1); } // hand this datasource to manager for creating an RTP // datasink our RTP datasink will multicast the audio try { String url= "rtp://224.0.0.1:22224/audio/16"; MediaLocator m = new MediaLocator(url); DataSink d = Manager.createDataSink(ds, m); d.open(); d.start(); processor.start(); } catch (Exception e) { System.exit(-1); } } } } </code></pre> <p>Receiver:</p> <pre><code>import java.io.IOException; import java.net.MalformedURLException; import javax.media.Manager; import javax.media.MediaLocator; import javax.media.NoPlayerException; import javax.media.Player; public class SimpleVoiceReciver{ /** * @param args */ public static void main(String[] args) { String url= "rtp://192.168.1.111:22224/audio/16"; MediaLocator mrl= new MediaLocator(url); if (mrl == null) { System.err.println("Can't build MRL for RTP"); System.exit(-1); } // Create a player for this rtp session Player player = null; try { player = Manager.createPlayer(mrl); } catch (NoPlayerException e) { System.err.println("Error:" + e); System.exit(-1); } catch (MalformedURLException e) { System.err.println("Error:" + e); System.exit(-1); } catch (IOException e) { System.err.println("Error:" + e); System.exit(-1); } if (player != null) { System.out.println("Player created."); player.realize(); // wait for realizing while (player.getState() != Player.Realized){ try { Thread.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } } player.start(); } else { System.err.println("Player doesn't created."); System.exit(-1); } } } </code></pre>
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    2. COThis sounds like an interesting project, what do you need help with?
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    3. COWhat is the true/false bit supposed to do exactly?
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