JMF code samples?

Question

Hi,
I am have just installed JMF and have it working and up and running. I haven't used JMF before and want to learn how program using it! What i want to do is to take a picture from my webcam and save it.
Are there any library's of code samples or tutorials that anyone can think of that could help me out? Or even books I can read?
Many Thanks

Answer 1

I have written a small app that can maybe get you started, its a little rough around the edges but it works :-)
Code below (BasicWebCam.java):
If you want the Eclispe project, let me know and I will send it to you.
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.media.Buffer;
import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;
import javax.media.control.FrameGrabbingControl;
import javax.media.format.VideoFormat;
import javax.media.util.BufferToImage;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JButton;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class BasicWebCam extends JFrame implements ActionListener {
private JPanel contentPane;
private JPanel pnlCam = new JPanel();
public CaptureDeviceInfo captureDeviceInfo;
public MediaLocator mediaLocator;
public Player player;
private Component comp;
public javax.swing.Timer timer = new javax.swing.Timer(250, (ActionListener) this);
public Buffer BUF;
public Image img;
public BufferToImage BtoI;
* Launch the application.
public static void main(String[] args) {
     EventQueue.invokeLater(new Runnable() {
     public void run() {
          try {
          BasicWebCam frame = new BasicWebCam();
          frame.setVisible(true);
          } catch (Exception e) {
          e.printStackTrace();
* Create the frame.
public BasicWebCam() {
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     setBounds(100, 100, 353, 327);
     contentPane = new JPanel();
     contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
     setContentPane(contentPane);
     contentPane.setLayout(null);
     pnlCam.setBounds(10, 11, 320, 240);
     contentPane.add(pnlCam);
     JButton btnCapture = new JButton("Capture");
     btnCapture.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent arg0) {
          actionCapture();
     btnCapture.setBounds(124, 262, 89, 23);
     contentPane.add(btnCapture);
     init();
public void init() {
     String strDevice = "vfw:Microsoft WDM Image Capture (Win32):0";
     mediaLocator = new MediaLocator("vfw://0");
     // FOR LINUX
     // String strDevice = "v4l:Laptop Integrated Webcam:0";
     // mediaLocator = new MediaLocator("v4l://0");
     captureDeviceInfo = CaptureDeviceManager.getDevice(strDevice);
     showVid();
private void showVid() {
     try {
     player = Manager.createRealizedPlayer(mediaLocator);
     player.start();
     if ((comp = player.getVisualComponent()) != null) {
          comp.setSize(pnlCam.getWidth(), pnlCam.getHeight());
          // comp.setPreferredSize(new Dimension(pnlCapture.getWidth(),
          // pnlCapture.getHeight()));
          pnlCam.add(comp);
     Thread.sleep(5000);
     timer.start(); // start timer
     } catch (Exception e) {
     e.printStackTrace();
public void actionCapture() {
     // Grab a frame
     // comp.setSize(pnlCapture.getWidth(), pnlCapture.getHeight());
     FrameGrabbingControl fgc = (FrameGrabbingControl) player.getControl("javax.media.control.FrameGrabbingControl");
     BUF = fgc.grabFrame();
     // Convert it to an image
     BtoI = new BufferToImage((VideoFormat) BUF.getFormat());
     img = BtoI.createImage(BUF);
     // resize
     img = resizeImage(img, pnlCam.getWidth(), pnlCam.getHeight());
     // show the image
     // pnlImage.setImage(img);
     img.getGraphics().drawString(getDateTime("yyyy/MM/dd HH:mm:ss") + " - ColinCoderator", 50, 235);
     // save image
     String fileName = getDateTime("yyyy-MM-dd_HH-mm-ss") + ".jpg";
     String path = "c:/projects/BasicWebCam/" + fileName;
     System.out.println(path);
     // save image
     saveJPG(img, path);
public static void saveJPG(Image img, String s) {
     BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
     Graphics2D g2 = bi.createGraphics();
     g2.drawImage(img, null, null);
     FileOutputStream out = null;
     try {
     out = new FileOutputStream(s);
     } catch (java.io.FileNotFoundException io) {
     System.out.println("File Not Found");
     JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
     JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
     param.setQuality(0.5f, false);
     encoder.setJPEGEncodeParam(param);
     try {
     encoder.encode(bi);
     out.close();
     } catch (java.io.IOException io) {
     System.out.println("IOException");
public Image resizeImage(Image img, int width, int height) {
     BufferedImage resizedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
     Graphics2D g = resizedImage.createGraphics();
     g.drawImage(img, 0, 0, width, height, null);
     g.dispose();
     return resizedImage;
public static String getDateTime(String format) {
     DateFormat dateFormat = new SimpleDateFormat(format);
     Calendar cal = Calendar.getInstance();
     return (dateFormat.format(cal.getTime()));
@Override
public void actionPerformed(ActionEvent arg0) {
     // TODO Auto-generated method stub
}