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Cannot play converted mp4 file - JavaFX 2.1

I converted the video .movto .mp4, but when I play the video in my javafx application, it does not work, I can hear the sound of the video file, but without photos! perhaps .mp4 is not in the correct codec! any idea or solution?

UPDATE

With the same code, I played another mp4 video under the same conditions (plateforme, JFX Version, ...), so I came to the conclusion that I have a problem with this converted mp4 file, i.e. with software, m for conversion The mov file does not generate the apporiat mp4 format, which is supported by JFX 2.1.

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h.264 mp4 JavaFX.

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.*;
import javafx.scene.media.*;
import javafx.scene.paint.Color;
import javafx.stage.Stage;

/** plays an mp4 video in JavaFX 2.1+ */
public class OnlineVideoPlayer extends Application {
  public static void main(String[] args) { launch(args); }
  @Override public void start(Stage stage) {
    final Label status = new Label("Init");
    MediaPlayer mediaPlayer = createMediaPlayer(
      "http://www.html5videoplayer.net/videos/toystory.mp4", 
      status
    );
    VBox layout = new VBox(10);
    layout.setAlignment(Pos.CENTER);
    layout.getChildren().addAll(new MediaView(mediaPlayer), status);
    stage.setScene(new Scene(layout, 500, 300, Color.CORNSILK));
    stage.show();
    if (mediaPlayer != null) {
      mediaPlayer.play();
    }  
  }

  /** 
   * creates a media player using a url to the media
   * and tracks the status of playing the media via the status label 
   */
  private MediaPlayer createMediaPlayer(final String url, final Label status) {
    Media hit = new Media(url);
    MediaPlayer mediaPlayer = new MediaPlayer(hit);
    mediaPlayer.setOnError(new Runnable() {
      @Override public void run() {
        status.setText("Error");
      }
    });
    mediaPlayer.setOnPlaying(new Runnable() {
      @Override public void run() {
        status.setText("Playing: " + url);
      }
    });
    mediaPlayer.setOnEndOfMedia(new Runnable() {
      @Override public void run() {
        status.setText("Done");
      }
    });
    return mediaPlayer;
  }
}

: (JavaFX 8u72, OS X 10.9.5). barbie woody

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, .mp4 H264. MPEG4 .

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