JMFPlayer.java Source code

Introduction

Here is the source code for JMFPlayer.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.applet.*;
import java.awt.*;
import javax.swing.*;
import java.net.*;
import java.io.*;
import java.util.*;
import javax.media.*;

/**
 * Demonstrate simple code to play a movie with Java Media Framework.
 * 
 * @author Ian F. Darwin, http://www.darwinsys.com/
 * @version $Id: JMFPlayer.java,v 1.9 2004/02/09 03:21:20 ian Exp $
 */
public class JMFPlayer extends JPanel implements ControllerListener {

    /** The player object */
    Player thePlayer = null;

    /** The parent Frame we are in. */
    JFrame parentFrame = null;

    /** Our contentpane */
    Container cp;

    /** The visual component (if any) */
    Component visualComponent = null;

    /** The default control component (if any) */
    Component controlComponent = null;

    /** The name of this instance's media file. */
    String mediaName;

    /** The URL representing this media file. */
    URL theURL;

    /** Construct the player object and the GUI. */
    public JMFPlayer(JFrame pf, String media) {
        parentFrame = pf;
        mediaName = media;
        // cp = getContentPane();
        cp = this;
        cp.setLayout(new BorderLayout());
        try {
            theURL = new URL(getClass().getResource("."), mediaName);
            thePlayer = Manager.createPlayer(theURL);
            thePlayer.addControllerListener(this);
        } catch (MalformedURLException e) {
            System.err.println("JMF URL creation error: " + e);
        } catch (Exception e) {
            System.err.println("JMF Player creation error: " + e);
            return;
        }
        System.out.println("theURL = " + theURL);

        // Start the player: this will notify our ControllerListener.
        thePlayer.start(); // start playing
    }

    /** Called to stop the audio, as from a Stop button or menuitem */
    public void stop() {
        if (thePlayer == null)
            return;
        thePlayer.stop(); // stop playing!
        thePlayer.deallocate(); // free system resources
    }

    /** Called when we are really finished (as from an Exit button). */
    public void destroy() {
        if (thePlayer == null)
            return;
        thePlayer.close();
    }

    /** Called by JMF when the Player has something to tell us about. */
    public synchronized void controllerUpdate(ControllerEvent event) {
        // System.out.println("controllerUpdate(" + event + ")");
        if (event instanceof RealizeCompleteEvent) {
            if ((visualComponent = thePlayer.getVisualComponent()) != null)
                cp.add(BorderLayout.CENTER, visualComponent);
            if ((controlComponent = thePlayer.getControlPanelComponent()) != null)
                cp.add(BorderLayout.SOUTH, controlComponent);
            // re-size the main window
            if (parentFrame != null) {
                parentFrame.pack();
                parentFrame.setTitle(mediaName);
            }
        }
    }

    public static void main(String[] argv) {
        JFrame f = new JFrame("JMF Player Demo");
        Container frameCP = f.getContentPane();
        JMFPlayer p = new JMFPlayer(f, argv.length == 0 ? "file:///C:/music/midi/beet5th.mid" : argv[0]);
        frameCP.add(BorderLayout.CENTER, p);
        f.setSize(200, 200);
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}