JMF這個(gè)多媒體開(kāi)發(fā)框架太牛了，簡(jiǎn)單的幾句代碼就能實(shí)現(xiàn)一個(gè)視頻播放器的開(kāi)發(fā)，厲害，就是支持的格式少了一些，沒(méi)關(guān)系，這個(gè)視頻播放器可以播放mpg，avi,fvl等等，想播放其他的請(qǐng)開(kāi)發(fā)自己的插件，下面將代碼貼上去
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package com.bird.jmf;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.CannotRealizeException;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;@SuppressWarnings({ "restriction", "unused" })public class JMFSample implements ControllerListener { public static void main(String[] args) { JMFSample sp = new JMFSample(); sp.play(); } private Player mediaPlayer; 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 { //準(zhǔn)備一個(gè)要播放的視頻文件的URL url = new URL("file:/d:/2.mpg"); } catch (MalformedURLException e) { e.printStackTrace(); } try { //通過(guò)調(diào)用Manager的createPlayer方法來(lái)創(chuàng)建一個(gè)Player的對(duì)象 //這個(gè)對(duì)象是媒體播放的核心控制對(duì)象 player = Manager.createPlayer(url); } catch (NoPlayerException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } //對(duì)player對(duì)象注冊(cè)監(jiān)聽(tīng)器，能噶偶在相關(guān)事件發(fā)生的時(shí)候執(zhí)行相關(guān)的動(dòng)作 player.addControllerListener(this); //讓player對(duì)象進(jìn)行相關(guān)的資源分配 player.realize(); } private int videoWidth = 0; private int videoHeight = 0; private int controlHeight = 30; private int insetWidth = 10; private int insetHeight = 30; //監(jiān)聽(tīng)player的相關(guān)事件 public void controllerUpdate(ControllerEvent ce) { if (ce instanceof RealizeCompleteEvent) { //player實(shí)例化完成后進(jìn)行player播放前預(yù)處理 player.prefetch(); } else if (ce instanceof PrefetchCompleteEvent) { if (visual != null) return; //取得player中的播放視頻的組件，并得到視頻窗口的大小 //然后把視頻窗口的組件添加到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中的視頻播放控制條組件，并把該組件添加到Frame窗口中 if ((control = player.getControlPanelComponent()) != null) { controlHeight = control.getPreferredSize().height; f.add(control, BorderLayout.SOUTH); } //設(shè)定Frame窗口的大小，使得滿足視頻文件的默認(rèn)大小 f.setSize(videoWidth + insetWidth, videoHeight + controlHeight + insetHeight); f.validate(); //啟動(dòng)視頻播放組件開(kāi)始播放 player.start(); mediaPlayer.start(); } else if (ce instanceof EndOfMediaEvent) { //當(dāng)播放視頻完成后，把時(shí)間進(jìn)度條恢復(fù)到開(kāi)始，并再次重新開(kāi)始播放 player.setMediaTime(new Time(0)); player.start(); } }} |
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