package com.jmfsample2;import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.media.ControllerEvent;
import javax.media.ControllerListener;
import javax.media.EndOfMediaEvent;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.NoPlayerException;
import javax.media.Player;
import javax.media.PrefetchCompleteEvent;
import javax.media.RealizeCompleteEvent;
import javax.media.Time;
public class JMFSample implements ControllerListener {
public static void main(String[] args) {
JMFSample sp = new JMFSample();
sp.play();
}
private Frame f;
private Player player;
private Panel panel;
private Component visual;
private Component control = null ;
public void play(){
f = new Frame( " JMF Sample1 " );
f.addWindowListener( new WindowAdapter() {
public void windowClosing(WindowEvent we) {
if (player != null ) {
player.close();
}
System.exit( 0 );
}
});
f.setSize( 500 , 400 );
f.setVisible( true );
URL url = null ;
try {
// 准备一个要播放的视频文件的URL
url = new URL( " file:/E:/c-d.avi " );
} catch (MalformedURLException e) {
e.printStackTrace();
}
try {
// 通过调用Manager的createPlayer方法来创建一个Player的对象
// 这个对象是媒体播放的核心控制对象
player = Manager.createPlayer(url);
} catch (NoPlayerException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
// 对player对象注册监听器,能噶偶在相关事件发生的时候执行相关的动作
player.addControllerListener( this );
// 让player对象进行相关的资源分配
player.realize();
}
private int videoWidth = 0 ;
private int videoHeight = 0 ;
private int controlHeight = 30 ;
private int insetWidth = 10 ;
private int insetHeight = 30 ;
// 监听player的相关事件
public void controllerUpdate(ControllerEvent ce) {
if (ce instanceof RealizeCompleteEvent) {
// player实例化完成后进行player播放前预处理
player.prefetch();
} else if (ce instanceof PrefetchCompleteEvent) {
if (visual != null )
return ;
// 取得player中的播放视频的组件,并得到视频窗口的大小
// 然后把视频窗口的组件添加到Frame窗口中,
if ((visual = player.getVisualComponent()) != null ) {
Dimension size = visual.getPreferredSize();
videoWidth = size.width;
videoHeight = size.height;
f.add(visual);
} else {
videoWidth = 320 ;
}
// 取得player中的视频播放控制条组件,并把该组件添加到Frame窗口中
if ((control = player.getControlPanelComponent()) != null ) {
controlHeight = control.getPreferredSize().height;
f.add(control, BorderLayout.SOUTH);
}
// 设定Frame窗口的大小,使得满足视频文件的默认大小
f.setSize(videoWidth + insetWidth, videoHeight + controlHeight + insetHeight);
f.validate();
// 启动视频播放组件开始播放
player.start();
} else if (ce instanceof EndOfMediaEvent) {
// 当播放视频完成后,把时间进度条恢复到开始,并再次重新开始播放
player.setMediaTime( new Time( 0 ));
player.start();
}
}
}
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