Java利用VLC开发简易视屏播放器功能 Java利用VLC开发简易视屏播放器

1、环境配置（1）下载VLC VlC官网http://www.videolan.org/ 各个版本的下载地址http://download.videolan.org/pub/videolan/vlc/last/ 里面有32位和64位的区分，按照自己的系统下载对应的vlc版本，下载解压后提取；
（2）下载VLCJ （http://capricasoftware.co.uk/#/projects/vlcj）把下载文件解压后将其目录下的jna-3.5.2.jar、platform-3.5.2.jar、vlcj-3.8.0.jar（不同版本后缀数字可能会不同）三个文件复制到对应的java工程目录（新建 lib文件夹）下；
（3）下载slf4j（http://www.slf4j.org/），下载文件后解压将其目录下的slf4j-api-1.7.13.jar、slf4j- nop-1.7.13.jar（不同版本后缀数字可能会不同）两个文件复制到对应的java工程目录（新建 lib文件夹）下；
（4）将vlc安装目录下的libvlc.dll、libvlccore.dll 两个文件以及plugins问佳佳复制到对应的java工程目录下；
将lib文件中的jar包导入到工程项目中。配置好的项目目录如下图所示

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（5）具体代码如下
播放器主类代码

package deng.test; import java.awt.EventQueue; import java.io.File; import javax.swing.JFileChooser; import javax.swing.SwingWorker; import com.sun.jna.Native; import com.sun.jna.NativeLibrary; import uk.co.caprica.vlcj.binding.LibVlc; import uk.co.caprica.vlcj.runtime.RuntimeUtil; public class PlayerMain {static Window frame; private static int times=1; private static boolean flag=true; // private static final String NATIVE_LIBRARY_SEARCH_PATH = "D:\\Program// Files\\VideoLAN\\VLC\\sdk\\lib"; public static void main(String[] args) {// 环境配置，将vlc sdk导入到eclipse// if(RuntimeUtil.isWindows()){ }// NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(),// "D:\\vlc\\vlc-2.2.6\\sdk\\lib"); //导入的路径是vlc的安装路径NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(), "vlcj//lib"); // 导入的路径是vlc的安装路径Native.loadLibrary(RuntimeUtil.getLibVlcLibraryName(), LibVlc.class); // System.out.println(LibVlc.INSTANCE.libvlc_get_version()); // 创建主程序界面运行窗体EventQueue.invokeLater(new Runnable() {@Overridepublic void run() {try {frame = new Window(); frame.setVisible(true); frame.getMediaPlayer().playMedia("video//style.avi"); // 直接播放视屏，参数是视屏文件的绝对路径// frame.getMediaPlayer().prepareMedia("video//test.mp4"); // //控制即将播放的视频new SwingWorker() {@Overrideprotected String doInBackground() throws Exception {// TODO Auto-generated method stubwhile (flag) { // 获取视频播放进度并且按百分比显示long total = frame.getMediaPlayer().getLength(); if(total==-1){//如果视频播放完，循环播放视频play(); times++; System.out.println(times+"******************"); }long curr = frame.getMediaPlayer().getTime(); float percent = (float) curr / total; publish((int) (percent * 100)); Thread.sleep(100); }return null; }protected void process(java.util.List chunks) {for (int v : chunks) {frame.getProgressBar().setValue(v); }}}.execute(); } catch (Exception e) {e.printStackTrace(); }}}); }//关闭播放器释放资源public static void dispose(){flag=false; frame.getMediaPlayer().stop(); frame.dispose(); }// 打开文件public static void openVideo() {JFileChooser chooser = new JFileChooser(); int v = chooser.showOpenDialog(null); if (v == JFileChooser.APPROVE_OPTION) {File file = chooser.getSelectedFile(); frame.getMediaPlayer().playMedia(file.getAbsolutePath()); }}// 退出播放public static void exit() {frame.getMediaPlayer().release(); System.exit(0); }// 实现播放按钮的方法public static void play() {frame.getMediaPlayer().play(); }// 实现暂停按钮的方法public static void pause() {frame.getMediaPlayer().pause(); }// 实现停止按钮的方法public static void stop() {frame.getMediaPlayer().stop(); }// 实现点击进度条跳转的方法public static void jumpTo(float to) {frame.getMediaPlayer().setTime((long) (to * frame.getMediaPlayer().getLength())); }// 实现控制声音的方法public static void setVol(int v) {frame.getMediaPlayer().setVolume(v); }}

播放器窗体类：

package deng.test; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JProgressBar; import javax.swing.JSlider; import javax.swing.border.EmptyBorder; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import uk.co.caprica.vlcj.component.EmbeddedMediaPlayerComponent; import uk.co.caprica.vlcj.player.embedded.EmbeddedMediaPlayer; @SuppressWarnings("serial")public class Window extends JFrame{private JPanel contentPane; //顶层容器，整个播放页面的容器private JMenuBar menuBar; //菜单栏private JMenu mnFile,mnSetting,mnHelp; //文件菜单private JMenuItem mnOpenVideo,mnExit; //文件菜单子目录，打开视屏、退出private JPanel panel; //控制区域容器private JProgressBar progress; //进度条private JPanel progressPanel; //进度条容器private JPanel controlPanel; //控制按钮容器private JButton btnStop,btnPlay,btnPause; //控制按钮，停止、播放、暂停private JSlider slider; //声音控制块EmbeddedMediaPlayerComponent playerComponent; //媒体播放器组件public static void main(String[] args) {}//MainWindow构造方法，创建视屏播放的主界面public Window(){setTitle("小婷婷专属播放器Copyright@dengchaoqun"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(200,80,900,600); contentPane=new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0,0)); setContentPane(contentPane); /*视频播放窗口中的菜单栏*/menuBar=new JMenuBar(); setJMenuBar(menuBar); mnFile=new JMenu("文件"); //设置菜单名menuBar.add(mnFile); mnSetting=new JMenu("设置"); menuBar.add(mnSetting); mnHelp=new JMenu("帮助"); menuBar.add(mnHelp); mnOpenVideo =new JMenuItem("打开文件"); //设置文件菜单子目录打开文件mnFile.add(mnOpenVideo); mnExit =new JMenuItem("退出"); //设置文件菜单子目录退出mnFile.add(mnExit); //打开文件mnOpenVideo.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubPlayerMain.openVideo(); }}); //退出mnExit.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubPlayerMain.exit(); }}); /*视屏窗口中播放界面部分*/JPanel videoPane=new JPanel(); contentPane.add(videoPane, BorderLayout.CENTER); videoPane.setLayout(new BorderLayout(0,0)); playerComponent=new EmbeddedMediaPlayerComponent(); videoPane.add(playerComponent); /*视屏窗口中控制部分*/panel=new JPanel(); //实例化控制区域容器videoPane.add(panel,BorderLayout.SOUTH); progressPanel=new JPanel(); //实例化进度条容器panel.add(progressPanel, BorderLayout.NORTH); //添加进度条progress=new JProgressBar(); progressPanel.add(progress); //panel.add(progress,BorderLayout.NORTH); progress.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent e){//点击进度条调整视屏播放进度int x=e.getX(); PlayerMain.jumpTo((float)x/progress.getWidth()); }}); progress.setStringPainted(true); controlPanel=new JPanel(); //实例化控制按钮容器panel.add(controlPanel,BorderLayout.SOUTH); //添加停止按钮btnStop=new JButton("停止"); btnStop.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stubPlayerMain.stop(); }}); controlPanel.add(btnStop); //添加播放按钮btnPlay=new JButton("播放"); btnPlay.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stubPlayerMain.play(); }}); controlPanel.add(btnPlay); //添加暂停按钮btnPause=new JButton("暂停"); btnPause.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stub//PlayerMain.dispose(); PlayerMain.pause(); }}); controlPanel.add(btnPause); //添加声音控制块slider=new JSlider(); slider.setValue(80); slider.setMaximum(100); slider.addChangeListener(new ChangeListener() {@Overridepublic void stateChanged(ChangeEvent e) {// TODO Auto-generated method stubPlayerMain.setVol(slider.getValue()); }}); controlPanel.add(slider); }//获取播放媒体实例（某个视频）public EmbeddedMediaPlayer getMediaPlayer() {return playerComponent.getMediaPlayer(); }//获取进度条实例public JProgressBar getProgressBar() {return progress; }}

效果如下：

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（6）在视频播放面板上操作视频接口方法：

playerComponent = new EmbeddedMediaPlayerComponent(); panel.add(playerComponent); //视频表面的鼠标事件监听playerComponent.getVideoSurface().addMouseListener(new MouseListener() {@Overridepublic void mouseReleased(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mousePressed(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseExited(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseEntered(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stubSystem.out.println("**************"); }});

（7）项目总结：应用了开源vlc，运用了jna技术，实现了多媒体视频播放。
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