jmf简单例子

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;

/**
 * @author 
 * @version 创建时间：Apr 28, 2008 8:02:26 PM
 * 类说明:
 */
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;
	/**
	 * @param args
	 */
	public FirstCapture()
	{
		 setLayout(new BorderLayout());
		 setSize(320,550);
		String str="vfw:Microsoft WDM Image Capture (Win32):0";
		captureDeviceInfo=CaptureDeviceManager.getDevice(str);
		mediaLocator=new MediaLocator("vfw://0");
		imagePanel=new ImagePanel();
		 capture=new JButton("拍照");
		 capture.addActionListener(this);
		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);
	}
	@Override
	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);
	      }
	      
	    }
	  }
	
}

 

 

评论

1 楼 allenlinrui 2008-08-07  

很不错~我参考参考