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Author Topic: JMF Webcam app + saving jpeg  (Read 1625 times)
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G. Ritardo
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« on: May 18, 2009, 03:48:17 PM »
Not written by me and forgot what website i found this (probably the sun site) but still wanted to share the code for those that want to use java in combination with a webcam + saving the image to jpeg. I haven't tested the code myself though because i don't have the JMF package installed but if you have any trouble running the code let me know and i'll try to help you out.

Code
GeSHi (java):
  1. import javax.swing.*;
  2. import javax.swing.event.*;
  3. import java.io.*;
  4. import javax.media.*;
  5. import javax.media.format.*;
  6. import javax.media.util.*;
  7. import javax.media.control.*;
  8. import javax.media.protocol.*;
  9. import java.util.*;
  10. import java.awt.*;
  11. import java.awt.image.*;
  12. import java.awt.event.*;
  13. import com.sun.image.codec.jpeg.*;
  14.  
  15. public class SwingCapture extends Panel implements ActionListener 
  16. {
  17.   public static Player player = null;
  18.   public CaptureDeviceInfo di = null;
  19.   public MediaLocator ml = null;
  20.   public JButton capture = null;
  21.   public Buffer buf = null;
  22.   public Image img = null;
  23.   public VideoFormat vf = null;
  24.   public BufferToImage btoi = null;
  25.   public ImagePanel imgpanel = null;
  26.  
  27.   public SwingCapture() 
  28.   {
  29.     setLayout(new BorderLayout());
  30.     setSize(320,550);
  31.  
  32.     imgpanel = new ImagePanel();
  33.     capture = new JButton("Capture");
  34.     capture.addActionListener(this);
  35.  
  36.     String str1 = "vfw:Logitech USB Video Camera:0";
  37.     String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
  38.     di = CaptureDeviceManager.getDevice(str2);
  39.     ml = di.getLocator();
  40.  
  41.     try 
  42.     {
  43.       player = Manager.createRealizedPlayer(ml);
  44.       player.start();
  45.       Component comp;
  46.  
  47.       if ((comp = player.getVisualComponent()) != null)
  48.       {
  49.         add(comp,BorderLayout.NORTH);
  50.       }
  51.       add(capture,BorderLayout.CENTER);
  52.       add(imgpanel,BorderLayout.SOUTH);
  53.     } 
  54.     catch (Exception e) 
  55.     {
  56.       e.printStackTrace();
  57.     }
  58.   }
  59.  
  60.  
  61.  
  62.   public static void main(String[] args) 
  63.   {
  64.     Frame f = new Frame("SwingCapture");
  65.     SwingCapture cf = new SwingCapture();
  66.  
  67.     f.addWindowListener(new WindowAdapter() {
  68.       public void windowClosing(WindowEvent e) {
  69.       playerclose();
  70.       System.exit(0);}});
  71.  
  72.     f.add("Center",cf);
  73.     f.pack();
  74.     f.setSize(new Dimension(320,550));
  75.     f.setVisible(true);
  76.   }
  77.  
  78.  
  79.   public static void playerclose() 
  80.   {
  81.     player.close();
  82.     player.deallocate();
  83.   }
  84.  
  85.  
  86.   public void actionPerformed(ActionEvent e) 
  87.   {
  88.     JComponent c = (JComponent) e.getSource();
  89.  
  90.     if (c == capture) 
  91.     {
  92.       // Grab a frame
  93.       FrameGrabbingControl fgc = (FrameGrabbingControl)
  94.       player.getControl("javax.media.control.FrameGrabbingControl");
  95.       buf = fgc.grabFrame();
  96.  
  97.       // Convert it to an image
  98.       btoi = new BufferToImage((VideoFormat)buf.getFormat());
  99.       img = btoi.createImage(buf);
  100.  
  101.       // show the image
  102.       imgpanel.setImage(img);
  103.  
  104.       // save image
  105.       saveJPG(img,"c:\\test.jpg");
  106.     }
  107.   }
  108.  
  109.   class ImagePanel extends Panel 
  110.   {
  111.     public Image myimg = null;
  112.  
  113.     public ImagePanel() 
  114.     {
  115.       setLayout(null);
  116.       setSize(320,240);
  117.     }
  118.  
  119.     public void setImage(Image img) 
  120.     {
  121.       this.myimg = img;
  122.       repaint();
  123.     }
  124.  
  125.     public void paint(Graphics g) 
  126.     {
  127.       if (myimg != null) 
  128.       {
  129.         g.drawImage(myimg, 0, 0, this);
  130.       }
  131.     }
  132.   }
  133.  
  134.  
  135.   public static void saveJPG(Image img, String s)
  136.   {
  137.     BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
  138.     Graphics2D g2 = bi.createGraphics();
  139.     g2.drawImage(img, null, null);
  140.  
  141.     FileOutputStream out = null;
  142.     try
  143.     { 
  144.       out = new FileOutputStream(s); 
  145.     }
  146.     catch (java.io.FileNotFoundException io)
  147.     { 
  148.       System.out.println("File Not Found"); 
  149.     }
  150.  
  151.     JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
  152.     JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
  153.     param.setQuality(0.5f,false);
  154.     encoder.setJPEGEncodeParam(param);
  155.  
  156.     try 
  157.     { 
  158.       encoder.encode(bi); 
  159.       out.close(); 
  160.     }
  161.     catch (java.io.IOException io) 
  162.     {
  163.       System.out.println("IOException"); 
  164.     }
  165.   }
  166.  
  167. }
  168.  
Created by GeSHI 1.0.7.20


Logitech QuickCam.
Code
GeSHi (java):
  1. public static boolean PassportPhotoOpen = false;
  2. public static JInternalFrame photoFrameReference;
  3.  
  4. ...
  5.  
  6.     // program sample menu item creation
  7.     mItem = new JMenuItem("Capture Photo");
  8.     mItem.addActionListener(new ActionListener() {
  9.       public void actionPerformed(ActionEvent e) {
  10.         String empID = nText.employeeID; // derived from tree node 
  11.         String empName = nText.employeeName;
  12.         createPhotoFrame(empID,empName);
  13.       }
  14.     });
  15.     popup.add(mItem);
  16.  
  17. ...
  18.  
  19. // routine that is executed above that creates the photo capture internal frame 
  20. protected void createPhotoFrame(String empID, String empName) {
  21.   // kill photo capture frame if it exists
  22.   if (PassportPhotoOpen){
  23.     PassportPhoto.playerclose(); // rather use the reference?
  24.     photoFrameReference.dispose();
  25.     PassportPhotoOpen = false;
  26.   }
  27.   // create and display frame
  28.   PassportPhoto frame = new PassportPhoto(empID, empName);
  29.   frame.setVisible(true);
  30.   ImageIcon frameIcon = new ImageIcon(Passport.class.getClassLoader().getResource("images/SmallWIM.gif"));
  31.   frame.setFrameIcon(frameIcon);
  32.   PassportPhotoOpen = true;
  33.   photoFrameReference = frame;
  34.   frame.setRequestFocusEnabled(true);
  35.   try {frame.setSelected(true);}
  36.   catch (java.beans.PropertyVetoException e) {} // ignore as obvious if no frame appears
  37.   frame.toFront();
  38. }
  39.  
  40. ...
  41.  
  42. // modified photo capture code
  43.  
  44. import javax.swing.*;
  45. import javax.swing.event.*;
  46. import java.io.*;
  47. import javax.media.*;
  48. import javax.media.format.*;
  49. import javax.media.util.*;
  50. import javax.media.control.*;
  51. import javax.media.protocol.*;
  52. import java.util.*;
  53. import java.awt.*;
  54. import java.awt.image.*;
  55. import java.awt.event.*;
  56. import com.sun.image.codec.jpeg.*;
  57.  
  58. public class PassportPhoto extends JInternalFrame implements ActionListener {
  59.   public static Player player = null;
  60.   public CaptureDeviceInfo di = null;
  61.   public MediaLocator ml = null;
  62.   public JButton capture = null;
  63.   public Buffer buf = null;
  64.   public Image img = null;
  65.   public VideoFormat vf = null;
  66.   public BufferToImage btoi = null;
  67.   public ImagePanel imgpanel = null;
  68.  
  69.   public PassportPhoto(String empID, String empName) {
  70.     super("Photo Capture " +empName, false, true, false, true);
  71.     setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); // exit control
  72.     addInternalFrameListener(new InternalFrameAdapter() {
  73.       public void internalFrameActivated(InternalFrameEvent e){}
  74.       public void internalFrameClosed(InternalFrameEvent e){}
  75.       public void internalFrameClosing(InternalFrameEvent e){
  76.         EmployeeTree.PassportPhotoOpen = false;
  77.         playerclose();
  78.         dispose();
  79.       }
  80.       public void internalFrameDeactivated(InternalFrameEvent e){}
  81.       public void internalFrameDeiconified(InternalFrameEvent e){}
  82.       public void internalFrameIconified(InternalFrameEvent e){}
  83.       public void internalFrameOpened(InternalFrameEvent e){}
  84.     });
  85.     JPanel videoPanel = new JPanel();
  86.     capture = new JButton("Capture");
  87.     capture.setSize(new Dimension(79, 26));
  88.     capture.setMinimumSize(new Dimension(79, 26));
  89.     capture.setMaximumSize(new Dimension(79, 26));
  90.     capture.addActionListener(this);
  91.     imgpanel = new ImagePanel();
  92.     //String str1 = "vfw:Logitech USB Video Camera:0";
  93.     //String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
  94.     //di = CaptureDeviceManager.getDevice(str1);
  95.     //ml = di.getLocator();
  96.     // remove above and substitute below
  97.     ml = new MediaLocator("vfw://0");
  98.     try {
  99.       Manager.setHint(Manager.LIGHTWEIGHT_RENDERER, new Boolean(true)); 
  100.       player = Manager.createRealizedPlayer(ml);
  101.       player.start();
  102.       Component comp;
  103.       if ((comp = player.getVisualComponent()) != null) {
  104.         videoPanel.add(comp, BorderLayout.CENTER);
  105.         videoPanel.setSize(new Dimension(320, 240));
  106.         videoPanel.setMinimumSize(new Dimension(320, 240));
  107.         videoPanel.setMaximumSize(new Dimension(320, 240));
  108.       }
  109.       else {
  110.         // actually will warn user, log error and exit here
  111.         System.out.println("null");
  112.       }
  113.     } 
  114.     catch (Exception e) {
  115.       // actually will warn user, log error and exit here
  116.       e.printStackTrace();
  117.     }
  118.     /******************************/
  119.     /* assemble the final screen  */
  120.     /******************************/
  121.     Container contentPane = getContentPane();
  122.     contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.X_AXIS));
  123.     contentPane.add(videoPanel, BorderLayout.WEST);
  124.     contentPane.add(capture,BorderLayout.CENTER);
  125.     contentPane.add(imgpanel,BorderLayout.EAST);		
  126.     setSize(730, 275); // window size
  127.     setMinimumSize(new Dimension(730, 275));
  128.     setMaximumSize(new Dimension(730, 275));
  129.     setLocation(30, 30); // window location
  130.   }
  131.   public static void playerclose() {
  132.     player.close();
  133.     player.deallocate();
  134.   }
  135.   public void actionPerformed(ActionEvent e) {
  136.     JComponent c = (JComponent) e.getSource();
  137.     if (c == capture) {
  138.       // Grab the frame
  139.       FrameGrabbingControl fgc = (FrameGrabbingControl) player.getControl("javax.media.control.FrameGrabbingControl");
  140.       buf = fgc.grabFrame();
  141.       btoi = new BufferToImage((VideoFormat)buf.getFormat()); // Convert to image
  142.       img = btoi.createImage(buf);
  143.       imgpanel.setImage(img); // display the image
  144.       // actually will have a separate save routine
  145.       saveJPG(img,"c:\\test.jpg"); // save image
  146.     }
  147.   }
  148.   class ImagePanel extends JPanel {
  149.     public Image myimg = null;
  150.     public ImagePanel() {
  151.       setSize(320,240);
  152.       setMinimumSize(new Dimension(320, 240));
  153.       setMaximumSize(new Dimension(320, 240));
  154.     }
  155.     public void setImage(Image img) {
  156.       this.myimg = img;
  157.       repaint();
  158.     }
  159.     public void paint(Graphics g) {if (myimg != null) {g.drawImage(myimg, 0, 0, this);}}
  160.   }
  161.   public static void saveJPG(Image img, String s)	{
  162.     BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
  163.     Graphics2D g2 = bi.createGraphics();
  164.     g2.drawImage(img, null, null);
  165.     FileOutputStream out = null;
  166.     try{out = new FileOutputStream(s);}
  167.     catch (java.io.FileNotFoundException io) {
  168.       // again actually will warn user, log error and exit here
  169.       System.out.println("File Not Found"); 
  170.     }
  171.     JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
  172.     JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
  173.     param.setQuality(0.5f,false);
  174.     encoder.setJPEGEncodeParam(param);
  175.     try { 
  176.       encoder.encode(bi);
  177.       out.close(); 
  178.     }
  179.     catch (java.io.IOException io) {
  180.       // again actually will warn user, log error and exit here
  181.       System.out.println("IOException"); 
  182.     }
  183.   }
  184. }
Created by GeSHI 1.0.7.20
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« Reply #1 on: May 18, 2009, 07:30:59 PM »
thx
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