Problem in Manager.createPlayer()

Question

hi to all,i have some problem in javax.media.Player interface.
      javax.swing.JFileChooser jfc=new javax.swing.JFileChooser();
                         int res=jfc.showOpenDialog(null);
                         if(res==javax.swing.JFileChooser.APPROVE_OPTION){
                              URL mediaURL = null;
                            try
                               // get the file as URL
                               mediaURL = new URL("file",null,jfc.getSelectedFile().getAbsolutePath());
                            } // end try
                            catch ( MalformedURLException malformedURLException )
                               System.err.println( "Could not create URL for the file" );
                            javax.media.MediaLocator ml=new javax.media.MediaLocator(mediaURL);
                            try {
                                 player = Manager.createRealizedPlayer(ml);
                              } catch (NoPlayerException noplayer) {
                                   System.out.println("No player "+noplayer);
                                   // TODO: handle exception
                              }catch(CannotRealizeException cant){
                                   System.out.println("Cannot "+cant);
                              catch(java.io.IOException ioe){
                                   System.out.println("Error "+ioe);
In above code,
player=Manager.createPlayer(ml);
is not working , it shows exception : NoPlayer exception is raised.
What can i do for run the video file. Any one give me good suggestion for me..
Reply as soon as possible,
Thanking you,
Azharudeen Ahmed M.Sc
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Answer 1

>
how to use all the formats in JMF....>Ahhh.. (sighs) the 'learning curve of media'.
The answer is both simple (to say) and complex (to program).
To play 'all formats' simply write a decoder for any format that JMF does not support 'out of the box', as well as any formats to be released.
I think the reason people are fooled into thinking it is 'easy' to play all formats is that the Win. media player has a very clever mechanism to pretend that it can. If the Win. media player encounters a format it does not understand, it opens a connection back to microsoft, and tells MS what the file reports as its format, in the hope that the MS website can provide the decoders 'on the fly'.
That is one way to provide support for (previously unknown) formats.
Java (or rather, the JMF) uses a different mechanism to add new formats, the Service Provider Interface - I doubt it would be compatible with active downloading of the new decoders, as the Services for JMF need to be registered at application start-up.
The FMJ (note the reversal of letters) is a project aimed at providing the 'extra' encoding support for more formats, but even it does not cover 'every format'.
To be blunt, I would not use JMF for a 'general player' like you seem to want. JMF is good for dealing with media over which you have total control, and can thereby encode the media in whatever format that is compatible with JMF, best suits your application.
As far as a general player of 'anything the user might throw into it', JMF fails badly. :-(