简单的JMF播放器测试

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.io.File;
import java.net.URL;
import javax.media.*;

public class ExpVideoPlayer implements ControllerListener {
 
    private Frame f;
    private Panel panel;
    private Player videoPlayer;
    private Component visualPlayer;          //视频
    private Component controlPlayer= null;  //控制条

    private int videoWidth = 0;        //视频宽
    private int videoHeight = 0;       //视频高
    private int controlHeight = 30;    //控制条高
    private int insetWidth = 10;       //间隔
    private int insetHeight = 30;
    URL urlFile=null;

    public ExpVideoPlayer(URL url)
        throws IOException,NoPlayerException,CannotRealizeException {
      urlFile=url;
    }
    public ExpVideoPlayer(File file)
        throws IOException,NoPlayerException,CannotRealizeException {
      urlFile=file.toURL();
    }
    public ExpVideoPlayer(String filename)
        throws IOException,NoPlayerException,CannotRealizeException {
      File file=new File(filename);
      urlFile=file.toURL();
    }  
    public void play(){
        f=new Frame("JMF 测试");
       // 窗口关闭后，关闭播放器
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent we) {
                if(videoPlayer!=null) {
                    videoPlayer.close();
                }
                System.exit(0);
            }
        });
        f.setSize(500,400);
        f.setVisible(true);

        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
            videoPlayer=Manager.createPlayer(urlFile);
            //让player对象进行相关的资源分配
            videoPlayer.realize();
        } catch (NoPlayerException e1) {
            e1.printStackTrace();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        //对player对象注册监听器，能使其在相关事件发生的时候执行相关的动作
        videoPlayer.addControllerListener(this);
    }
 
    //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
            videoPlayer.prefetch();
        }else if(ce instanceof PrefetchCompleteEvent) {
            if (visualPlayer != 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 ((visualPlayer=videoPlayer.getVisualComponent()) != null) {
                Dimension size=visualPlayer.getPreferredSize();
                videoWidth=size.width;
                videoHeight=size.height;
                f.add(visualPlayer,BorderLayout.CENTER);
            } 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 ((controlPlayer=videoPlayer.getControlPanelComponent()) != null) {
                controlHeight=controlPlayer.getPreferredSize().height;
                f.add(controlPlayer,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
            videoPlayer.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
            videoPlayer.setMediaTime(new Time(0));
            videoPlayer.start();
        }
    }
    public static void main(String[] args) {
       try{
         ExpVideoPlayer sp = new ExpVideoPlayer("F://1.mpg");
         sp.play();
       }catch(Exception ex){
         System.out.println(ex.toString());
       }
    }
}