Did you hit this error before in javafx MediaPlayer?

Question

Hi,All
I 'd like to make a javafx mediaplayer to play mp3 ,and I found some of mp3 wouldn't be supported by javafx mediaplayer,I don't know how can I solve this bug?
I posted a mp3 file to the public network ,if you are interested in this issue, you can download this mp3 from this line for test.
https://www.dropbox.com/s/wk2i9amk0kczqxe/And%20the%20Cradle%20Will%20Rock.mp3
*mediaPlayer.getError() = MediaException: UNKNOWN : [com.sun.media.jfxmediaimpl.NativeMediaPlayer@104fc23] "Error media invalid": "Error media invalid"*
Exception Message:
* Copyright (c) 2008, 2011 Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
import java.io.File;
import javafx.application.Application;
import javafx.scene.media.AudioSpectrumListener;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;
* An example of an AnchorPane layout.
* @see javafx.scene.layout.AnchorPane
* @related controls/text/SimpleLabel
* @resource icon-48x48.png
public class AnchorPaneSample extends Application {
     private MediaPlayer mediaPlayer;
     private Media media;
     private AudioSpectrumListener spectrumListener;
     private void init(Stage primaryStage) {
          initializeMp3();
    public void initializeMp3()
         if (mediaPlayer != null )
            mediaPlayer.stop();
            mediaPlayer.setAudioSpectrumListener(null);
         String fullpath="C:/And the Cradle Will Rock.mp3";//please download this mp3 from this line ,https://www.dropbox.com/s/wk2i9amk0kczqxe/And%20the%20Cradle%20Will%20Rock.mp3
         File file=new File(fullpath);
          media=new Media(file.toURI().toString());
         mediaPlayer=new MediaPlayer(media);
         mediaPlayer.setAutoPlay(true);
         mediaPlayer.setAudioSpectrumNumBands(10);
        mediaPlayer.setAudioSpectrumListener(spectrumListener);
        mediaPlayer.setAudioSpectrumInterval(1d/30d);
         mediaPlayer.setOnError(new Runnable() {
             @Override public void run() {
                 System.out.println("mediaPlayer.getError() = " + mediaPlayer.getError());
         mediaPlayer.setOnEndOfMedia(new Runnable(){
               @Override public void run() {
                        //todo
    @Override public void start(Stage primaryStage) throws Exception {
        init(primaryStage);
        primaryStage.show();
    public static void main(String[] args) { launch(args); }
}Edited by: imtoocute on May 22, 2012 11:21 AM
Edited by: imtoocute on May 22, 2012 11:22 AM
Edited by: imtoocute on May 22, 2012 11:34 AM

Answer 1

It appears that the file is actually encoded as aac, not mp3. Try changing the file extension and see if that doesn't help.
We'll look at handling this sort of discrepancy, but I'm not sure how reliably we will be able to detect this condition.
General / Container Stream #1
     Total Audio Streams for this File.................1
     Audio Codecs Used.................................AAC LC
     File Format.......................................MPEG-4
     Play Time.........................................3mn 0s
     Total File Size...................................6.62 MiB
     Total Stream BitRate..............................308 Kbps
     Title (Tag).......................................And the Cradle Will Rock...
     Copyright (Tag)...................................2011 Rockabye Baby! Music
Audio Stream #1
     Codec.............................................AAC
     Codec (FourCC)....................................40
     Audio Stream Length...............................3mn 0s 513ms
     Audio Stream BitRate..............................304 Kbps
     Audio Stream BitRate Mode.........................VBR
     Number of Audio Channels..........................2
     Audio Channel's Positions.........................Front: L R
     Sampling Rate.....................................44.1 KHz
     Audio Stream Size.................................6.55 MiB (99%)
     Date of Original Encoding.........................UTC 2011-11-09 18:50:15
Menu / Chapters Stream #1