使用JMF编写媒体播放器代码,Java代码库,德仔网

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【Java】使用JMF编写媒体播放器
作者:Hsingmin / 发布于2015/9/14/ 682

	/**
	* @Description : A media palyer for local file and web file.
	* @Author : Alfred Lee
	* @Date : Aug. 29th, 2015
	* @Email : alfred_bit@sina.cn
	*/
	
	
	import java.awt.*;
	import java.awt.event.*;
	import javax.swing.*;
	import javax.media.*;
	import java.net.URL;
	import java.net.MalformedURLException;
	
	public class RePlayer{
	 public static void main(String[] args){
	 EventQueue.invokeLater(new Runnable(){
	 public void run(){
	 new MultiPlayer("Open Source");
	 System.out.println("Create new player.");
	 }
	 });
	 }
	}
	
	class MultiPlayer extends JFrame implements ControllerListener, ItemListener{
	 public MultiPlayer(String title){
	 super(title);
	
	 addWindowListener(new WindowAdapter(){
	 public void windowClosing(WindowEvent event){
	 dispose();
	 }
	
	 public void windowClosed(WindowEvent event){
	 if(player != null)
	 player.close();
	 System.exit(0);
	 }
	 });
	
	 setupMenu();
	 setSize(FRAME_WIDTH,FRAME_HEIGHT);
	 setVisible(true);
	 }
	
	 public void setupMenu(){
	 //File menu
	 Menu fileMenu = new Menu("File");
	 MenuItem openItem = new MenuItem("Open");
	 openItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 FileDialog fd = new FileDialog(new Frame(),"Open Media File",FileDialog.LOAD);
	 fd.setDirectory(currentDirectory);
	 fd.show();
	
	 if(fd.getFile() == null)
	 return;
	
	 selectfile = fd.getFile();
	 currentDirectory = fd.getDirectory();
	 currentfile = currentDirectory + selectfile;
	 url = "file:" + currentfile;
	
	 //add new item into list menu when openning a local media file
	 MenuItem menuItem = new MenuItem(selectfile);
	 menuItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 url = "file:" + selectfile;
	 System.out.println("Open file : " + url);
	 setPlayer(url);
	 }
	 });
	 MenuBar menuBar = getMenuBar();
	 Menu listMenu = menuBar.getMenu(3);
	 listMenu.add(menuItem);
	
	 setPlayer(url);
	 }
	 });
	 fileMenu.add(openItem);
	 fileMenu.addSeparator();
	
	 //loop play mode
	 CheckboxMenuItem loopItem = new CheckboxMenuItem("Loop",false);
	 loopItem.addItemListener(this);
	 fileMenu.add(loopItem);
	 fileMenu.addSeparator();
	
	 //quit player
	 MenuItem quitItem = new MenuItem("Quit");
	 quitItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 dispose();
	 return;
	 }
	 });
	 fileMenu.add(quitItem);
	
	 //URL input menu
	 Menu urlMenu = new Menu("URL");
	 MenuItem urlItem = new MenuItem("Input");
	 urlItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 if(dialog == null)
	 dialog = new InputDialog(MultiPlayer.this);
	
	 url = dialog.getUrl();
	 System.out.println("Open url : " + url);
	 setPlayer(url);
	
	 //add a new item into list menu when openning a url
	 MenuItem menuItem = new MenuItem(url);
	 menuItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 setPlayer(url);
	 }
	 });
	 MenuBar menuBar = getMenuBar();
	 Menu listMenu = menuBar.getMenu(3);
	 listMenu.add(menuItem);
	 }
	 });
	 urlMenu.add(urlItem);
	
	 //Player control menu
	 Menu controlMenu = new Menu("Control");
	 MenuItem playItem = new MenuItem("Play");
	 playItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 if(player != null)
	 player.start();
	 return;
	 }
	 });
	 controlMenu.add(playItem);
	 controlMenu.addSeparator();
	
	 MenuItem pauseItem = new MenuItem("Pause");
	 pauseItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 if(player != null)
	 player.stop();
	 return;
	 }
	 });
	 controlMenu.add(pauseItem);
	 controlMenu.addSeparator();
	
	 MenuItem stopItem = new MenuItem("Stop");
	 stopItem.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 if(player != null){
	 player.stop();
	 player.setMediaTime(new Time(0));
	 }
	 return;
	 }
	 });
	 controlMenu.add(stopItem);
	
	 //Player list menu
	 Menu listMenu = new Menu("List");
	
	 MenuBar menuBar = new MenuBar();
	 menuBar.add(fileMenu);
	 menuBar.add(urlMenu);
	 menuBar.add(controlMenu);
	 menuBar.add(listMenu);
	 setMenuBar(menuBar);
	 }
	
	 public void setPlayer(String url){
	 if(player != null)
	 player.close();
	 try{
	 player = Manager.createPlayer(new MediaLocator(url));
	 }
	 catch(java.io.IOException e2){
	 System.out.println(e2);
	 return;
	 }
	 catch(NoPlayerException e2){
	 System.out.println("Cannot find the player!");
	 return;
	 }
	
	 if(player == null){
	 System.out.println("Cannot create the player!");
	 return;
	 }
	
	 setTitle(url);
	 player.addControllerListener(MultiPlayer.this);
	 player.prefetch();
	 }
	
	 public void controllerUpdate(ControllerEvent e){
	 Container tainer = getContentPane();
	
	 if(e instanceof ControllerClosedEvent){
	 if(vc != null){
	 remove(vc);
	 vc = null;
	 }
	 if(cc != null){
	 remove(cc);
	 cc = null;
	 }
	 return;
	 }
	
	 if(e instanceof EndOfMediaEvent){
	 player.setMediaTime(new Time(0));
	 if(loop){
	 player.start();
	 }
	 return;
	 }
	
	 if(e instanceof PrefetchCompleteEvent){
	 player.start();
	 return;
	 }
	
	 if(e instanceof RealizeCompleteEvent){
	 vc = player.getVisualComponent();
	 if(vc != null)
	 tainer.add(vc,BorderLayout.CENTER);
	
	 cc = player.getControlPanelComponent();
	 cc.setBackground(Color.BLUE);
	 if(cc != null)
	 tainer.add(cc,BorderLayout.SOUTH);
	
	 gc = player.getGainControl();
	
	 gcc = gc.getControlComponent();
	 if(gcc != null)
	 tainer.add(gcc,BorderLayout.NORTH);
	
	 if(vc != null){
	 pack();
	 return;
	 }
	
	 else{
	 setSize(300,75);
	 setVisible(true);
	 }
	 }
	 }
	
	 public void itemStateChanged(ItemEvent e){
	 loop = !loop;
	 }
	
	 public void update(Graphics g){
	 paint(g);
	 }
	
	 public void paint(Graphics g){
	 super.paint(g);
	 if(first){
	 int width = getSize().width;
	 int height = getSize().height;
	 g.setColor(Color.magenta);
	 g.fillRect(0,0,width,height);
	
	 Font font = new Font("DialogInput",Font.BOLD,18);
	 g.setFont(font);
	
	 FontMetrics fontMetrics = g.getFontMetrics();
	 int swidth = fontMetrics.stringWidth("Repro Player");
	
	 g.setColor(Color.white);
	 g.drawString("Repro Player",(width - swidth)/2,(height + getInsets().top)/2);
	 }
	 }
	
	 private Player player;
	 private InputDialog dialog;
	 private String url;
	 private String selectfile;
	 private String currentfile;
	 private Component vc, cc, gcc;
	 private GainControl gc;
	
	 private boolean first = true;
	 private boolean loop = false;
	
	 private String currentDirectory;
	 private static final int FRAME_WIDTH = 450;
	 private static final int FRAME_HEIGHT = 450;
	}
	
	class InputDialog extends JDialog{
	 public InputDialog(JFrame owner){
	 super(owner,"Input Dialog",true);
	
	 final JTextField inputField = new JTextField();
	 add(inputField,BorderLayout.NORTH);
	
	
	 JButton ok = new JButton("OK");
	 ok.addActionListener(new ActionListener(){
	 public void actionPerformed(ActionEvent event){
	 urlValue = inputField.getText().toString();
	 setVisible(false);
	 }
	 });
	
	 JPanel panel = new JPanel();
	 panel.add(ok);
	 add(panel,BorderLayout.SOUTH);
	 setSize(DIALOG_WIDTH,DIALOG_HEIGHT);
	 setVisible(true);
	 }
	
	 public String getUrl(){
	 return urlValue;
	 }
	
	 private JTextField inputField;
	 private String urlValue;
	 private static final int DIALOG_WIDTH = 250;
	 private static final int DIALOG_HEIGHT = 150;
	}
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　媒体播放器　　 JMF　
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