need urgent help with JMF on Mac OS X

[abbie10]

Hi,
I am trying to execute the following code:

import java.applet.*;
import java.awt.*;
import java.net.*;
import javax.media.ControllerListener;
import javax.media.Manager;
import javax.media.Player;
import javax.media.ControllerEvent;
import javax.media.RealizeCompleteEvent;
//import javax.media.*;

public class PlayerApplet extends Applet implements ControllerListener {
Player player = null;
public void init() {
setLayout(new BorderLayout());
//String mediaFile = "gogo_mov.mpeg";
String mediaFile = getParameter("FILE"
try {
URL mediaURL = new URL(getDocumentBase(), mediaFile);
player = Manager.createPlayer(mediaURL);
player.addControllerListener(this);
}
catch (Exception e) {
System.err.println("Got exception "+e);
}
}
public void start() {
player.start();
}
public void stop() {
player.stop();
player.deallocate();
}
public void destroy() {
player.close();
}
public synchronized void controllerUpdate(ControllerEvent event) {
if (event instanceof RealizeCompleteEvent) {
Component comp;
if ((comp = player.getVisualComponent()) != null)
add ("Center", comp);
if ((comp = player.getControlPanelComponent()) != null)
add ("South", comp);
validate();
}
}
}

I am getting the following error when I try to run the applet using the appletviewer:

java.lang.NoClassDefFoundError: javax/media/ControllerListener
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:488)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:106)
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:138)
at java.lang.ClassLoader.loadClass(ClassLoader.java:294)
at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:250)
at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:463)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:581)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:510)
at sun.applet.AppletPanel.run(AppletPanel.java:288)
at java.lang.Thread.run(Thread.java:491)

I have placed the jmf.jar in the classpath. I think the proble is with the classpath setting but don't know the exact problem.
Can anyone please help me?

Thanks

 

[Mordoth]

Here is self contained code to get it working. You need to instantiate a listener first

import javax.swing.*;
import javax.media.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;

public class WavPlayerPanel extends JPanel {
public Player player;
private Component center;
private Component south;
private JFrame _parent = null;
private URL mediaURL = null;

//instantiation as component
public WavPlayerPanel(String url, boolean autoplay) {
setLayout(null);

if (url!=null && url.length()>0) {
try {
load(url,autoplay);
} catch(Exception e) {
System.out.println("Exception loading: " + e.getMessage());

if (center != null) {
remove(center);
validate();
}
if (south != null) {
remove(south);
validate();
}
}
}
}

public void load(String url, boolean autoplay) throws Exception {
if (player != null) {
player.stop();
}

if(url.indexOf("http&quot==-1)
url = "file:" + url;

mediaURL = new URL(url);

player = Manager.createPlayer(mediaURL);
ControllerListener listener = new ControllerAdapter() {
//for non application mode, close window after playing media
public void endOfMedia(EndOfMediaEvent e) {
//dispose();
}

public void realizeComplete(RealizeCompleteEvent event) {
Component vc = player.getVisualComponent();
if (vc != null) {
vc.setBounds(0,0,getWidth(),vc.getHeight());
add(vc);
center = vc;
} else {
if (center != null) {
remove(center);
validate();
}
}

Component cpc = player.getControlPanelComponent();
if (cpc != null) {
cpc.setBounds(0,0,getWidth(),cpc.getHeight());
add(cpc);
south = cpc;
} else {
if (south != null) {
remove(south);
validate();
}
}
}
};
player.addControllerListener(listener);
player.realize();
player.prefetch();

if (autoplay)
player.start();


}

public static void main(String args[]) {
//as an application
JFrame frame = new JFrame();
//WavPlayerPanel jplayer = new WavPlayerPanel("

http://www.carappoint.com/media/TOP40.mp3",

true);
//WavPlayerPanel jplayer = new WavPlayerPanel("./media/031.mpeg", true);
WavPlayerPanel jplayer = new WavPlayerPanel("./media/FASTDANCE - TRANCE CONTROL - atomic_dance_explosion.mp3", false);
jplayer.setBounds(0,0,225,40);
frame.getContentPane().add(jplayer, BorderLayout.CENTER);
//frame.setSize(jplayer.player.getHeight(),jplayer.player.getWidth());
frame.setSize(300,300);
//frame.pack();
frame.validate();
frame.show();
}
}