[转]调用jmf打开摄像头

引自 csdn bbs

 

首先到SUN下载最新的JMF，然后安装。http://java.sun.com/products/java-media/jmf/index.jsp

Java code

    
    
    
    

     
     
     
     
      
     
     
     
     import
     
     
     
      java.awt.BorderLayout; 
     
     
     
     import
     
     
     
      java.awt.Color; 
     
     
     
     import
     
     
     
      java.awt.Component; 
     
     
     
     import
     
     
     
      java.awt.Dimension; 
     
     
     
     import
     
     
     
      java.awt.Graphics; 
     
     
     
     import
     
     
     
      java.awt.Graphics2D; 
     
     
     
     import
     
     
     
      java.awt.Image; 
     
     
     
     import
     
     
     
      java.awt.Panel; 
     
     
     
     import
     
     
     
      java.awt.Rectangle; 
     
     
     
     import
     
     
     
      java.awt.event.ActionEvent; 
     
     
     
     import
     
     
     
      java.awt.event.ActionListener; 
     
     
     
     import
     
     
     
      java.awt.event.WindowAdapter; 
     
     
     
     import
     
     
     
      java.awt.event.WindowEvent; 
     
     
     
     import
     
     
     
      java.awt.image.BufferedImage; 
     
     
     
     import
     
     
     
      java.io.FileNotFoundException; 
     
     
     
     import
     
     
     
      java.io.FileOutputStream; 
     
     
     
     import
     
     
     
      java.io.IOException; 
     
     
     
     import
     
     
     
      javax.media.Buffer; 
     
     
     
     import
     
     
     
      javax.media.CannotRealizeException; 
     
     
     
     import
     
     
     
      javax.media.CaptureDeviceInfo; 
     
     
     
     import
     
     
     
      javax.media.CaptureDeviceManager; 
     
     
     
     import
     
     
     
      javax.media.Manager; 
     
     
     
     import
     
     
     
      javax.media.MediaLocator; 
     
     
     
     import
     
     
     
      javax.media.NoPlayerException; 
     
     
     
     import
     
     
     
      javax.media.Player; 
     
     
     
     import
     
     
     
      javax.media.control.FrameGrabbingControl; 
     
     
     
     import
     
     
     
      javax.media.format.VideoFormat; 
     
     
     
     import
     
     
     
      javax.media.util.BufferToImage; 
     
     
     
     import
     
     
     
      javax.swing.JButton; 
     
     
     
     import
     
     
     
      javax.swing.JFrame; 
     
     
     
     import
     
     
     
      javax.swing.JPanel; 
     
     
     
     import
     
     
     
      com.sun.image.codec.jpeg.ImageFormatException; 
     
     
     
     import
     
     
     
      com.sun.image.codec.jpeg.JPEGCodec; 
     
     
     
     import
     
     
     
      com.sun.image.codec.jpeg.JPEGEncodeParam; 
     
     
     
     import
     
     
     
      com.sun.image.codec.jpeg.JPEGImageEncoder; 
     
     
     
     import
     
     
     
      com.sun.media.protocol.vfw.DataSource; 
     
     
     
     public
     
     
     
      
     
     
     
     class
     
     
     
      FirstCapture 
     
     
     
     extends
     
     
     
      JPanel 
     
     
     
     implements
     
     
     
      ActionListener{ 
     
     
     
     private
     
     
     
      CaptureDeviceInfo captureDeviceInfo
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      MediaLocator mediaLocator
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      
     
     
     
     static
     
     
     
      Player player
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      ImagePanel imagePanel
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      JButton capture; 
     
     
     
     private
     
     
     
      Buffer buffer
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      VideoFormat videoFormat
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      BufferToImage bufferToImage
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     private
     
     
     
      Image image
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     public
     
     
     
      FirstCapture() { setLayout(
     
     
     
     new
     
     
     
      BorderLayout()); setSize(
     
     
     
     320
     
     
     
     ,
     
     
     
     550
     
     
     
     ); captureDeviceInfo
     
     
     
     =
     
     
     
     CaptureDeviceManager.getDevice(
     
     
     
     "
     
     
     
     vfw:Microsoft WDM Image Capture (Win32):0
     
     
     
     "
     
     
     
     ); 
     
     
     
     //
     
     
     
     这里放置的是视频驱动
     
     
     
      
     
     
     
      mediaLocator
     
     
     
     =
     
     
     
     new
     
     
     
      MediaLocator(
     
     
     
     "
     
     
     
     vfw://0
     
     
     
     "
     
     
     
     ); 
     
     
     
     //
     
     
     
     这里是视频地址
     
     
     
      
     
     
     
      imagePanel
     
     
     
     =
     
     
     
     new
     
     
     
      ImagePanel(); capture
     
     
     
     =
     
     
     
     new
     
     
     
      JButton(
     
     
     
     "
     
     
     
     拍照
     
     
     
     "
     
     
     
     ); capture.addActionListener(
     
     
     
     this
     
     
     
     ); DataSource ds 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      DataSource(); ds.setLocator(mediaLocator); 
     
     
     
     try
     
     
     
      { player
     
     
     
     =
     
     
     
     Manager.createRealizedPlayer(mediaLocator); player.start(); Component comp; Component comp1; 
     
     
     
     if
     
     
     
     ((comp
     
     
     
     =
     
     
     
     player.getVisualComponent())
     
     
     
     !=
     
     
     
     null
     
     
     
     ) add(comp,BorderLayout.NORTH); 
     
     
     
     //
     
     
     
      if((comp1=player.getControlPanelComponent())!=null) 
     
     
     
     //
     
     
     
      add(comp1,BorderLayout.CENTER); 
     
     
     
      
     
     
     
      } 
     
     
     
     catch
     
     
     
      (NoPlayerException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } 
     
     
     
     catch
     
     
     
      (CannotRealizeException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } 
     
     
     
     catch
     
     
     
      (IOException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } add(imagePanel,BorderLayout.SOUTH); add(capture,BorderLayout.CENTER); } @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      print(Graphics g) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
      
     
     
     
      
     
     
     
     super
     
     
     
     .print(g); g.setColor(
     
     
     
     new
     
     
     
      Color(
     
     
     
     255
     
     
     
     ,
     
     
     
     0
     
     
     
     ,
     
     
     
     0
     
     
     
     )); g.drawLine(
     
     
     
     0
     
     
     
     , 
     
     
     
     0
     
     
     
     , 
     
     
     
     100
     
     
     
     , 
     
     
     
     100
     
     
     
     ); } 
     
     
     
     public
     
     
     
      
     
     
     
     static
     
     
     
      
     
     
     
     void
     
     
     
      main(String[] args) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
      
     
     
     
      JFrame f 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      JFrame(
     
     
     
     "
     
     
     
     FirstCapture
     
     
     
     "
     
     
     
     ); FirstCapture cf 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      FirstCapture(); f.addWindowListener(
     
     
     
     new
     
     
     
      WindowAdapter() { 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      windowClosing(WindowEvent e) { player.close(); System.exit(
     
     
     
     0
     
     
     
     );}}); f.add(
     
     
     
     "
     
     
     
     Center
     
     
     
     "
     
     
     
     ,cf); f.pack(); f.setSize(
     
     
     
     new
     
     
     
      Dimension(
     
     
     
     320
     
     
     
     ,
     
     
     
     550
     
     
     
     )); f.setVisible(
     
     
     
     true
     
     
     
     ); } 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      actionPerformed(ActionEvent e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
      
     
     
     
      FrameGrabbingControl fgc
     
     
     
     =
     
     
     
     (FrameGrabbingControl)player.getControl(
     
     
     
     "
     
     
     
     javax.media.control.FrameGrabbingControl
     
     
     
     "
     
     
     
     ); buffer
     
     
     
     =
     
     
     
     fgc.grabFrame(); bufferToImage
     
     
     
     =
     
     
     
     new
     
     
     
      BufferToImage((VideoFormat)buffer.getFormat()); image
     
     
     
     =
     
     
     
     bufferToImage.createImage(buffer); imagePanel.setImage(image); saveImage(image,
     
     
     
     "
     
     
     
     D:/test.jpg
     
     
     
     "
     
     
     
     ); } 
     
     
     
     public
     
     
     
      
     
     
     
     static
     
     
     
      
     
     
     
     void
     
     
     
      saveImage(Image image,String path) { BufferedImage bi
     
     
     
     =
     
     
     
     new
     
     
     
      BufferedImage(image.getWidth(
     
     
     
     null
     
     
     
     ),image.getHeight(
     
     
     
     null
     
     
     
     ),BufferedImage.TYPE_INT_RGB); Graphics2D g2 
     
     
     
     =
     
     
     
      bi.createGraphics(); g2.drawImage(image, 
     
     
     
     null
     
     
     
     , 
     
     
     
     null
     
     
     
     ); FileOutputStream fos
     
     
     
     =
     
     
     
     null
     
     
     
     ; 
     
     
     
     try
     
     
     
      { fos
     
     
     
     =
     
     
     
     new
     
     
     
      FileOutputStream(path); } 
     
     
     
     catch
     
     
     
      (FileNotFoundException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } JPEGImageEncoder je
     
     
     
     =
     
     
     
     JPEGCodec.createJPEGEncoder(fos); JPEGEncodeParam jp
     
     
     
     =
     
     
     
     je.getDefaultJPEGEncodeParam(bi); jp.setQuality(
     
     
     
     0.5f
     
     
     
     , 
     
     
     
     false
     
     
     
     ); je.setJPEGEncodeParam(jp); 
     
     
     
     try
     
     
     
      { je.encode(bi); fos.close(); } 
     
     
     
     catch
     
     
     
      (ImageFormatException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } 
     
     
     
     catch
     
     
     
      (IOException e) { 
     
     
     
     //
     
     
     
      TODO Auto-generated catch block 
     
     
     
      
     
     
     
      e.printStackTrace(); } } 
     
     
     
     class
     
     
     
      ImagePanel 
     
     
     
     extends
     
     
     
      Panel { 
     
     
     
     public
     
     
     
      Image myimg 
     
     
     
     =
     
     
     
      
     
     
     
     null
     
     
     
     ; 
     
     
     
     public
     
     
     
      ImagePanel() { setLayout(
     
     
     
     null
     
     
     
     ); setSize(
     
     
     
     320
     
     
     
     ,
     
     
     
     240
     
     
     
     ); } 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      setImage(Image img) { 
     
     
     
     this
     
     
     
     .myimg 
     
     
     
     =
     
     
     
      img; repaint(); } 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      paint(Graphics g) { 
     
     
     
     if
     
     
     
      (myimg 
     
     
     
     !=
     
     
     
      
     
     
     
     null
     
     
     
     ) { g.drawImage(myimg, 
     
     
     
     0
     
     
     
     , 
     
     
     
     0
     
     
     
     , 
     
     
     
     this
     
     
     
     ); } } } }