Jmf Mp3 files not streaming on rtp - mp3

Question

The player mp3 gives error:
RTP Handler internal error: javax.media.ControllerErrorEvent[source=com.sun.medi
a.content.unknown.Handler#baf4ae,message=Internal module com.sun.media.BasicRend
ererModule#197f158: failed to handle a data format change!]
i m running
server as:java MediaConverterExample rtp://rajneesh-pc:49150/audio Dead_End.mp3
client as:java PlayerExample rtp://rajneesh-pc:49150/audio
this is server side code
import javax.media.*;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
import javax.media.protocol.*;
import javax.media.format.AudioFormat;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class MediaConvertion
{
private MediaLocator mediaLocator = null;
private DataSink dataSink = null;
private Processor mediaProcessor = null;
private static final Format[] FORMATS = new Format[] { new AudioFormat(AudioFormat.MPEG_RTP)};
private static final ContentDescriptor CONTENT_DESCRIPTOR =new ContentDescriptor (ContentDescriptor.RAW_RTP);
public MediaConvertion(String url)throws IOException,NoProcessorException, CannotRealizeException, NoDataSinkException, NoDataSinkException
{
mediaLocator=new MediaLocator(url);
}
public void setDataSource(DataSource ds) throws IOException,NoProcessorException, CannotRealizeException, NoDataSinkException {
mediaProcessor = Manager.createRealizedProcessor(new ProcessorModel(ds, FORMATS, CONTENT_DESCRIPTOR));
dataSink = Manager.createDataSink(mediaProcessor.getDataOutput(),mediaLocator);
}
public void startTransmitting() throws IOException {
mediaProcessor.start();
dataSink.open();
dataSink.start();
}
public void stopTransmitting() throws IOException {
dataSink.stop();
dataSink.close();
mediaProcessor.stop();
mediaProcessor.close();
}
}
public class MediaConverterExample extends Frame implements ActionListener
{
Button st_stream;
static MediaConvertion mdcon;
public static void main(String args[])throws IOException,NoProcessorException, CannotRealizeException, NoDataSinkException,MalformedURLException,NoDataSourceException
{
Format input1 = new AudioFormat(AudioFormat.MPEGLAYER3);
Format input2 = new AudioFormat(AudioFormat.MPEG);
Format output = new AudioFormat(AudioFormat.LINEAR);
PlugInManager.addPlugIn(
"com.sun.media.codec.audio.mp3.JavaDecoder",
new Format[]{input1, input2},
new Format[]{output},
PlugInManager.CODEC
);
File mediaFile = new File(args[1]);
DataSource source = Manager.createDataSource(new MediaLocator(mediaFile.toURL()));
mdcon=new MediaConvertion(args[0]);
mdcon.setDataSource(source);
new MediaConverterExample();
}
public MediaConverterExample()
{
st_stream=new Button("Start Streaming");
add(st_stream);
st_stream.addActionListener(this);
setVisible(true);
setSize(200,300);
}
public void actionPerformed(ActionEvent ae)
{
try
{
mdcon.startTransmitting();
}
catch(Exception e){
}
}
}
this is client side code
import javax.media.*;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.media.format.*;
public class PlayerExample extends JFrame implements ActionListener
{
Button play;
SimpleAudioPlayer sap;
PlayerExample(String playFile) throws IOException,NoPlayerException, CannotRealizeException
{
sap=new SimpleAudioPlayer(new MediaLocator(playFile));
setLayout(new BorderLayout());
//add(sap.VideoComponent(),BorderLayout.CENTER);
//add(sap.AudioComponent(),BorderLayout.WEST);
//add(sap.ControlComponent(),BorderLayout.NORTH);
add(play=new Button("play"),BorderLayout.SOUTH);
play.addActionListener(this);
setSize(200,300);
setVisible(true);
}
public void actionPerformed(ActionEvent ae)
{
sap.play();
}
public static void main(String args[])throws IOException,NoPlayerException, CannotRealizeException
{
Format input1 = new AudioFormat(AudioFormat.MPEGLAYER3);
Format input2 = new AudioFormat(AudioFormat.MPEG);
Format output = new AudioFormat(AudioFormat.LINEAR);
PlugInManager.addPlugIn(
"com.sun.media.codec.audio.mp3.JavaDecoder",
new Format[]{input1, input2},
new Format[]{output},
PlugInManager.CODEC
);
new PlayerExample(args[0]);
}
}
class SimpleAudioPlayer {
private Player videoPlayer = null;
public SimpleAudioPlayer(MediaLocator ml) throws IOException, NoPlayerException, CannotRealizeException {
videoPlayer = Manager.createRealizedPlayer(ml);
}
public void play() {
//videoPlayer.deallocate();
videoPlayer.start();
}
public void stop() {
videoPlayer.stop();
}
public Component VideoComponent(){
return videoPlayer.getVisualComponent();
}
public Component ControlComponent(){
return videoPlayer.getControlPanelComponent();
}
public Component AudioComponent(){
return videoPlayer.getGainControl().getControlComponent();
}
}
Please help I did every thing I could. Please advise me of any other details I might be missing, server runs fine, but client blocks at player creation. The audio format I am using is MPEG_RAW. Eagerly looking for an answer, thanks in advance.

Answer 1

SOLVED......
i figured when looked at oracle forum
change
AudioFormat.MPEG_RTP to AudioFormat.DVI_RTP
don't ask a reason why mp3 didn't work.i did everything i could.
please tell me why previous didn't work.