JMF实现视频拍照代码

前提是加上jmf相关jar包

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.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 java.text.SimpleDateFormat;
import java.util.Date;
   
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 sounds.ChatFrame;

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;    
   
/**
 * 用于视频拍照
 *
 * @version 1.00
 * @author 钮
 * @date 2010-8-12
 */
public class FirstCapture extends JPanel implements ActionListener{    
   
    private CaptureDeviceInfo captureDeviceInfo=null;   //捕获硬件设备信息对象 
    private MediaLocator mediaLocator=null;     //媒体定位器
    private static Player player=null;     //播放对象
    private ImagePanel imagePanel=null;     //图片面板
    private JButton capture;        //按钮
    private Buffer buffer=null;       //缓冲区
    private VideoFormat videoFormat=null;     //视频数据格式
    private BufferToImage bufferToImage=null;   //缓存影像 
    private Image image=null;     //图片 
    //static FirstCapture cf = null;
    public FirstCapture()     //构造方法
    {    
          
          
         setLayout(new BorderLayout());     // 设置布局
         setSize(320,550);     //大小
        String str="vfw:Microsoft WDM Image Capture (Win32):0";     //驱动
        captureDeviceInfo=CaptureDeviceManager.getDevice(str);     //获得改驱动的视频硬件
       // MediaLocator mediaLocator=captureDeviceInfo.getLocator();  
        mediaLocator=new MediaLocator("vfw://0");    
        imagePanel=new ImagePanel();     //设置面板
         capture=new JButton("拍照");     //设置按钮名称
         capture.addActionListener(this);     //增加按钮事件
        try {    
            player=Manager.createRealizedPlayer(mediaLocator);  //将本地视频绑定到播放对象中，数据源绑定.  
            player.start();     //启动，一般分为6个状态
            Component comp;     //具有图形表示能力的对象
            Component comp1;     //具有图形表示能力的对象
            if((comp=player.getVisualComponent())!=null)    
                add(comp,BorderLayout.CENTER);    
//          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);     //添加到面板的北方
        add(capture,BorderLayout.NORTH);     //添加到面板的中间
    }    
        
    @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[]){
     FirstCapture cf = new FirstCapture();
     cf.main1(cf);
    }
    public  void main1(FirstCapture cf) {    
        // TODO Auto-generated method stub    
        JFrame f = new JFrame("FirstCapture");     //创建jframe
        //FirstCapture cf = new FirstCapture();     //实例化对象执行构造方法
            
        f.addWindowListener(new WindowAdapter() {    
          public void windowClosing(WindowEvent e) {     //关闭窗口事件
          player.close();     //播放关闭
          //ChatFrame s = new ChatFrame();
          ChatFrame.videoButton.setEnabled(true);
//          ChatFrame.disconnectButton.setEnabled(false);
          //System.exit(0);
          }});     //正常结束退出
            
        f.add("Center",cf);     //添加对象到jframe
        f.pack();     //画面显示大小和画面的实际大小适应
        f.setSize(new Dimension(320,550));     //大小
        f.setVisible(true);     //是否显示
    }    
     
    public void actionPerformed(ActionEvent e) {   //拍照事件 
        // 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,getTimeStr());//设置照片名称    
    }  
   
    public static String getTimeStr() {
        Date currentTime = new Date();//时间
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");//格式化时间
        String dateString = formatter.format(currentTime);//转换成字符串
        String[] str=dateString.split(" ");     
        return "D:\\rec\\"+str[0]+str[1]+".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;     //文件输出流对象
        try {    
                fos=new FileOutputStream(path);     //获得路径
                
        } catch (FileNotFoundException e) {    
            // TODO Auto-generated catch block    
            e.printStackTrace();    
        }    
        JPEGImageEncoder je=JPEGCodec.createJPEGEncoder(fos);   //创建一个指向  fos的JPEGImageEncoder对象
        JPEGEncodeParam jp=je.getDefaultJPEGEncodeParam(bi);     //@@@
        jp.setQuality(0.5f, false);      //创建替代当前已建量化表的新量化表
        je.setJPEGEncodeParam(jp);      //设置JPEGImageEncoder对象编码操作
        try {    
            je.encode(bi);      // 將 BufferedImage 作为 JPEG 数据流编码。
            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);    
          }    
              
        }    
      }    
        
}