hey guys i came across a tutorial online that shows how to make a java media player using JMF..the problem is when i run the program and open the file i get the following error..i googled this and found no help can anyone please tell me whats wrong ? T_T ..i found this code online while looking for tutorials !
error
Unable to handle format: mpeglayer3, 44100.0 Hz, 16-bit, Stereo, LittleEndian, Signed, 16000.0 frame rate, FrameSize=32768 bits
Failed to realize: com.sun.media.PlaybackEngine@56278e83
Error: Unable to realize com.sun.media.PlaybackEngine@56278e83
here is the code !
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.media.*;
public class MediaPlayerDemo extends JFrame {
private Player player;
private File file;
public MediaPlayerDemo()
{
super( "Demonstrating the Java Media Player" );
JButton openFile = new JButton( "Open file to play" );
openFile.addActionListener(
new ActionListener() {
public void actionPerformed( ActionEvent e )
{
openFile();
createPlayer();
}
}
);
getContentPane().add( openFile, BorderLayout.NORTH );
setSize( 300, 300 );
show();
}
private void openFile()
{
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(
JFileChooser.FILES_ONLY );
int result = fileChooser.showOpenDialog( this );
// user clicked Cancel button on dialog
if ( result == JFileChooser.CANCEL_OPTION )
file = null;
else
file = fileChooser.getSelectedFile();
}
private void createPlayer()
{
if ( file == null )
return;
removePreviousPlayer();
try {
// create a new player and add listener
player = Manager.createPlayer( file.toURL() );
player.addControllerListener( new EventHandler() );
player.start(); // start player
}
catch ( Exception e ){
JOptionPane.showMessageDialog( this,
"Invalid file or location", "Error loading file",
JOptionPane.ERROR_MESSAGE );
}
}
private void removePreviousPlayer()
{
if ( player == null )
return;
player.close();
Component visual = player.getVisualComponent();
Component control = player.getControlPanelComponent();
Container c = getContentPane();
if ( visual != null )
c.remove( visual );
if ( control != null )
c.remove( control );
}
public static void main(String args[])
{
MediaPlayerDemo app = new MediaPlayerDemo();
app.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
{
System.exit(0);
}
}
);
}
// inner class to handler events from media player
private class EventHandler implements ControllerListener {
public void controllerUpdate( ControllerEvent e ) {
if ( e instanceof RealizeCompleteEvent ) {
Container c = getContentPane();
// load Visual and Control components if they exist
Component visualComponent =
player.getVisualComponent();
if ( visualComponent != null )
c.add( visualComponent, BorderLayout.CENTER );
Component controlsComponent =
player.getControlPanelComponent();
if ( controlsComponent != null )
c.add( controlsComponent, BorderLayout.SOUTH );
c.doLayout();
}
}
}
}