向JPanel显示video
我正在创建一个简单的video播放器，但我有问题显示要在JPanel中流式传输的video文件。 我已经创建并设计了一个JFrame，并在表单中放置了一个方形大小的JPanel。
到目前为止，这是我的代码：
package SoundsTrip; import java.awt.BorderLayout; import java.awt.Component; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.util.logging.Level; import java.util.logging.Logger; import javax.media.CannotRealizeException; import javax.media.Manager; import javax.media.NoPlayerException; import javax.media.Player; import javax.swing.JFileChooser; import javax.swing.JOptionPane; /** * * @author jmoreno */ public class VideoFrame extends javax.swing.JFrame { /** Creates new form VideoFrame */ public VideoFrame() { initComponents(); //this.setExtendedState(VideoFrame.MAXIMIZED_BOTH); this.setSize(650, 500); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // private void initComponents() { jPanel1 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); getContentPane().setLayout(null); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 450, Short.MAX_VALUE) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 330, Short.MAX_VALUE) ); getContentPane().add(jPanel1); jPanel1.setBounds(10, 10, 450, 330); jButton1.setText("Open Video/Movie"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); getContentPane().add(jButton1); jButton1.setBounds(470, 10, 160, 23); pack(); }// private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: try { openMedia(); } catch (IOException ex) { Logger.getLogger(SoundBytePlaying.class.getName()).log(Level.SEVERE, null, ex); } catch (CannotRealizeException ex) { Logger.getLogger(SoundBytePlaying.class.getName()).log(Level.SEVERE, null, ex); } } public void openMedia() throws IOException, CannotRealizeException{ JFileChooser fileChooser = new JFileChooser(); int result = fileChooser.showOpenDialog(null); if(result == JFileChooser.APPROVE_OPTION){ URL mediaURL = null; try{ mediaURL = fileChooser.getSelectedFile().toURL(); }catch(MalformedURLException malformedURLException){ JOptionPane.showMessageDialog(null, "Could not create URL for the file"); } if(mediaURL != null){ **showVideo() //some error here** } } } public void showVideo(URL mediaURL){ Manager.setHint( Manager.LIGHTWEIGHT_RENDERER, true ); try{ //create a player to play the media specified in the URL Player mediaPlayer = Manager.createRealizedPlayer( mediaURL ); //get the components for the video and the playback controls Component video = mediaPlayer.getVisualComponent(); Component controls = mediaPlayer.getControlPanelComponent(); if ( video != null ) add( video, BorderLayout.CENTER ); //add video component if ( controls != null ) add( controls, BorderLayout.SOUTH ); //add controls mediaPlayer.start(); //start playing the media clip } //end try catch ( NoPlayerException noPlayerException ){ JOptionPane.showMessageDialog(null, "No media player found"); } //end catch catch ( CannotRealizeException cannotRealizeException ){ JOptionPane.showMessageDialog(null, "Could not realize media player."); } //end catch catch ( IOException iOException ){ JOptionPane.showMessageDialog(null, "Error reading from the source."); } //end catch } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new VideoFrame().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JPanel jPanel1; // End of variables declaration } 非常感谢我能得到的任何想法和帮助…… 🙂
尝试将Video and Control组件添加到jPanel1
... if ( video != null ) jPanel1.add( video, BorderLayout.CENTER ); //add video component if ( controls != null ) jPanel1.add( controls, BorderLayout.SOUTH ); //add controls ...
我真的建议使用vlcj而不是JFM并在canvas中显示video。 vlcj就像馅饼一样简单，下面是获取video窗格的代码。
String path = "/usr/lib"; //path for the vlc libs in linux NativeLibrary.addSearchPath ( "libvlc", path ); System.setProperty ( "jna.library.path", path ); MediaPlayerFactory factory = new MediaPlayerFactory (); mediaPlayer = factory.newEmbeddedMediaPlayer (); mediaPlayer.setRepeat ( false ); mediaPlayer.setEnableKeyInputHandling ( false ); mediaPlayer.setEnableMouseInputHandling ( false ); CanvasVideoSurface videoSurface = factory.newVideoSurface ( canvas ); mediaPlayer.setVideoSurface ( videoSurface ); mediaPlayer.playMedia ( "/media/path/" );
试试这段代码：
if(mediaURL != null) { showVideo(mediaURL) //some error here** }
在测试基于JMF的项目时，请务必使用可能在我的媒体页面上获得的“JMF兼容”媒体。 JMF非常陈旧，并且不支持最近用于媒体的许多媒体类型或编解码器。