JMF简单示例

java 代码

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

public   class  VideoDemo  extends  JFrame  implements  ActionListener,ControllerListener
{
JMenuBar jMenuBar1=new  JMenuBar();
JMenu jMenuFile=new  JMenu( "File" );
JMenu jMenuList=new  JMenu( "List" );
JMenu jMenuControl=new  JMenu( "Control" );
JMenu jMenuSkin=new  JMenu( "Skin" );
JMenu jMenuHelp=new  JMenu( "Help" );
JMenuItem jMenuFileOpen=new  JMenuItem( "Open" );
JMenuItem jMenuFileExit=new  JMenuItem( "Exit" );
JMenuItem jMenuControlPlay=new  JMenuItem( "Play" );
JMenuItem jMenuControlPause=new  JMenuItem( "Pause" );
JMenuItem jMenuControlStop=new  JMenuItem( "Stop" );
JMenuItem jMenuSkinmetal=new  JMenuItem( "metalSkin" );
JMenuItem jMenuSkinwindows=new  JMenuItem( "windowsSkin" );
JMenuItem jMenuSkinmotif=new  JMenuItem( "motifSkin" );
JMenuItem jMenuControlFullScreen=new  JMenuItem( "FullScreen" );
JLabel statusBar=new  JLabel();
JLabel welcome=new  JLabel();
Player player;
Component visualComponent;//Video player component
Component controlComponent;//video player control component
JPanel jPanel1=new  JPanel( new  BorderLayout());
String file="" ;
String strDir;

public  VideoDemo()
{
this .setSize( 400 , 300 );
this .setTitle( "Casper's player" );
welcome=new  JLabel( new  ImageIcon( "girl.jpg" ));
jPanel1.add(welcome);
statusBar.setText(" " );
jMenuFileExit.addActionListener(this );
jMenuFileOpen.addActionListener(this );
jMenuFile.add(jMenuFileOpen);
jMenuFile.addSeparator();
jMenuFile.add(jMenuFileExit);
jMenuBar1.add(jMenuFile);

jMenuBar1.add(jMenuSkin);
jMenuSkin.add(jMenuSkinmetal);
jMenuSkinmetal.addActionListener(this );
jMenuSkin.add(jMenuSkinwindows);
jMenuSkinwindows.addActionListener(this );
jMenuSkin.add(jMenuSkinmotif);
jMenuSkinmotif.addActionListener(this );

jMenuBar1.add(jMenuControl);/////////////
jMenuControl.add(jMenuControlPlay);
jMenuControlPlay.addActionListener(this );
jMenuControl.add(jMenuControlPause);
jMenuControlPause.addActionListener(this );
jMenuControl.add(jMenuControlStop);
jMenuControlStop.addActionListener(this );
jMenuControl.add(jMenuControlFullScreen);///////////
jMenuControlFullScreen.addActionListener(this );

jMenuBar1.add(jMenuList);
jMenuBar1.add(jMenuHelp);
this .setJMenuBar(jMenuBar1);
statusBar.setText("No file open" );
Manager.setHint(Manager.LIGHTWEIGHT_RENDERER,new  Boolean( true ));
//
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this .getContentPane().add(statusBar, "South" );
this .getContentPane().add(jPanel1, "Center" );
this .setVisible( true );
}

public   void  actionPerformed(ActionEvent e)
{
    //Skin menu(three skins)
    if (e.getSource()==jMenuSkinwindows)
    {
        String windows="com.sun.java.swing.plaf.windows.WindowsLookAndFeel" ;
        try {
            UIManager.setLookAndFeel(windows);//设置见面风格
            SwingUtilities.updateComponentTreeUI(this ); //使设置的界面风格生效
            this .pack();
            }catch (Exception e1){
                System.out.println("can't set such style" );
            }
    }
    else   if (e.getSource()==jMenuSkinmetal)
    {
        String metal="javax.swing.plaf.metal.MetalLookAndFeel" ;
        try {
            UIManager.setLookAndFeel(metal);
            SwingUtilities.updateComponentTreeUI(this );
            this .pack();
            }catch (Exception e1){
                System.out.println("can't set such style" );
            }
    }
    else   if (e.getSource()==jMenuSkinmotif)
    {
        String motif="com.sun.java.swing.plaf.motif.MotifLookAndFeel" ;
        try {
            UIManager.setLookAndFeel(motif);
            SwingUtilities.updateComponentTreeUI(this );
            this .pack();
            }catch (Exception e1){
                System.out.println("can't set such style" );
            }
    }
//////////////////////////////////////////////////////////////////

//File menu
else   if (e.getSource()==jMenuFileExit)
{
if (player!= null )
    player.close();
this .dispose();
System.exit(0 );
}
else   if (e.getSource()==jMenuFileOpen)
{
try
   {
   jPanel1.remove(welcome);
   FileDialog dlgOpen=new  FileDialog( this , "Open file" ,FileDialog.LOAD);
   dlgOpen.setDirectory(strDir);
   dlgOpen.setVisible(true );
   strDir=dlgOpen.getDirectory();
   if (strDir!= null )
    {
    if (player!= null )
        player.close();
    if (visualComponent!= null )
        jPanel1.remove(visualComponent);
    if (controlComponent!= null )
        jPanel1.remove(controlComponent);
    visualComponent=null ;
    controlComponent=null ;
    file=strDir+dlgOpen.getFile();
   // player=Manager.createPlayer(new URL("file:\\"+file));//create the object of the media will play
    player = Manager.createPlayer (new  MediaLocator("file: ” +file));

    statusBar.setText(" playing:  "+file.toString());//display the file imfomation
    player.addControllerListener(this);
    player.prefetch();//get the file data
    }
   }catch(Exception ex){ex.printStackTrace();}
}
////////////////////////////////////////////////////////

//control funcitons Menu
else if(e.getSource()==jMenuControlFullScreen)//Full screen
{
    dispose();
    setUndecorated(true);
    getGraphicsConfiguration().getDevice().setFullScreenWindow(this);
    setVisible(true);
}

else if(e.getActionCommand().equals(" Play ")) //play
{
     if(player != null)
     {
             player.start();
     }
     return;
}
else if(e.getActionCommand().equals(" Pause ")) //pause
{
     if(player != null)
     {
             player.stop();
     }
     return;
}
else if(e.getActionCommand().equals(" Stop")) //stop
{
     if (player !=  null )
     {
        player.stop();
         player.setMediaTime(new  Time( 0 ));
}
return ;
}
}

public   void  controllerUpdate(ControllerEvent e)
{
if (e  instanceof  PrefetchCompleteEvent)
{
player.start();
return ;
}
if (e  instanceof  RealizeCompleteEvent)
{
visualComponent=player.getVisualComponent();
if (visualComponent!= null )
jPanel1.add(visualComponent,BorderLayout.CENTER);

controlComponent=player.getControlPanelComponent();//time shaft control
if (controlComponent!= null )
jPanel1.add(controlComponent,BorderLayout.SOUTH);
player.getGainControl(); //volume control conponent

this .pack();
this .setResizable( false );
this .setVisible( true );
return ;
}
}

public   static   void  main(String[] args)
{new  VideoDemo();}
}

/*Player类中的很多方法只有在Player对象处于Realized的状态下才会被调用。
为了保证Player对象已经到达了该状态，
你需要使用Manager的createRealizePlayer（）方法
来获得Player对象。但是对于start（）方法来说，
你可以在Player对象到达Prefetched状态之前调用它，
它可以自动将Player的状态转换到Started状态*/

//Dimension screen=Toolkit.getDefaultToolkit().getScreenSize();//取出屏幕大小

//player.getGainControl().getControlComponent(); //是操作音量（增加）的可视组件volume control conponent