Show three live video in one window...

Question

Hi,
I need show three live video from three ip cameras in only one window... how can I do this?? I never use video in java, can any one help me??
thanks,

Answer 1

ok, I get the correct url to the sony camera. I am trying show two cameras at time, so I use two threads to get the images, but I don�t know how draw them without blinking my window!!!
I use this new class:
import java.net.*;
import com.sun.image.codec.jpeg.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;
public class AxisCamera_V1 extends JPanel implements Runnable {
     private AxisCamera AxisCamera_1;
     private AxisCamera AxisCamera_2;
    public boolean useMJPGStream = false;
    public String jpgURL  = "http://192.168.11.16/axis-cgi/jpg/image.cgi?resolution=352x240";
    DataInputStream dis;
    public Image image = null;
    public Dimension imageSize = null;
    public boolean connected = false;
    private boolean initCompleted = false;
    HttpURLConnection huc = null;
    Component parent;
     private JPanel ivjCam1 = null;
     private JPanel ivjCam2 = null;
* Constructor
/* AVISO: ESTE M�TODO SE REGENERAR�. */
public AxisCamera_V1() {
     super();
     initialize();
    public void connect() {
        try {
            URL u = new URL(jpgURL);
            huc = (HttpURLConnection) u.openConnection();
            //System.out.println(huc.getContentType());
            InputStream is = huc.getInputStream();
            connected = true;
            BufferedInputStream bis = new BufferedInputStream(is);
            dis = new DataInputStream(bis);
            if (!initCompleted)
                initDisplay();
        } catch (IOException e) { //incase no connection exists wait and try again, instead of printing the error
            try {
                huc.disconnect();
                Thread.sleep(60);
            } catch (InterruptedException ie) {
                huc.disconnect();
                connect();
            connect();
        } catch (Exception e) {
    public void disconnect() {
        try {
            if (connected) {
                dis.close();
                connected = false;
        } catch (Exception e) {
/* AVISO: ESTE M�TODO SE REGENERAR�. */
private static void getBuilderData() {
/*V1.1
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**end of data**/
* Devolver el valor de la propiedad Cam1.
* @return javax.swing.JPanel
/* AVISO: ESTE M�TODO SE REGENERAR�. */
private javax.swing.JPanel getCam1() {
     if (ivjCam1 == null) {
          try {
               ivjCam1 = new javax.swing.JPanel();
               ivjCam1.setName("Cam1");
               ivjCam1.setOpaque(false);
               ivjCam1.setBorder(new javax.swing.border.EtchedBorder());
               ivjCam1.setLayout(new java.awt.CardLayout());
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjCam1;
* Devolver el valor de la propiedad Cam2.
* @return javax.swing.JPanel
/* AVISO: ESTE M�TODO SE REGENERAR�. */
private javax.swing.JPanel getCam2() {
     if (ivjCam2 == null) {
          try {
               ivjCam2 = new javax.swing.JPanel();
               ivjCam2.setName("Cam2");
               ivjCam2.setOpaque(false);
               ivjCam2.setBorder(new javax.swing.border.EtchedBorder());
               ivjCam2.setLayout(new java.awt.CardLayout());
               // user code begin {1}
               // user code end
          } catch (java.lang.Throwable ivjExc) {
               // user code begin {2}
               // user code end
               handleException(ivjExc);
     return ivjCam2;
* M�todo al que se llama siempre que el componente lanza una excepci�n.
* @param exception java.lang.Throwable
private void handleException(java.lang.Throwable exception) {
     /* Elimine el comentario de las l�neas siguientes para imprimir en la salida est�ndar las excepciones no capturadas */
     // System.out.println("--------- EXCEPCI�N NO CAPTURADA ---------");
     // exception.printStackTrace(System.out);
    public void initDisplay() { //setup the display
        readJPG();
        disconnect();
/*        imageSize = new Dimension(image.getWidth(this), image.getHeight(this));
        setPreferredSize(imageSize);
        parent.setSize(imageSize);
        parent.validate();
        initCompleted = true;
* Inicializar la clase.
/* AVISO: ESTE M�TODO SE REGENERAR�. */
private void initialize() {
     try {
          // user code begin {1}
          // user code end
          setName("AxisCamera_V1");
          setOpaque(false);
          setLayout(new java.awt.GridBagLayout());
          setSize(800, 392);
          java.awt.GridBagConstraints constraintsCam1 = new java.awt.GridBagConstraints();
          constraintsCam1.gridx = 0; constraintsCam1.gridy = 0;
          constraintsCam1.fill = java.awt.GridBagConstraints.BOTH;
          constraintsCam1.weightx = 1.0;
          constraintsCam1.weighty = 1.0;
          add(getCam1(), constraintsCam1);
          java.awt.GridBagConstraints constraintsCam2 = new java.awt.GridBagConstraints();
          constraintsCam2.gridx = 1; constraintsCam2.gridy = 0;
          constraintsCam2.fill = java.awt.GridBagConstraints.BOTH;
          constraintsCam2.weightx = 1.0;
          constraintsCam2.weighty = 1.0;
          add(getCam2(), constraintsCam2);
     } catch (java.lang.Throwable ivjExc) {
          handleException(ivjExc);
     // user code begin {2}
     AxisCamera_1 = new AxisCamera(getCam1(), "http://192.168.11.16/axis-cgi/jpg/image.cgi?resolution=352x240");
     AxisCamera_2 = new AxisCamera(getCam2(), "http://192.168.11.12/oneshotimage.jpg");
     new Thread(AxisCamera_1).start();
     new Thread(AxisCamera_2).start();
     // user code end
    public static void main(String[] args) {
          try {
               JFrame frame = new JFrame();
               AxisCamera_V1 aAxisCamera_V1;
               aAxisCamera_V1 = new AxisCamera_V1();
               frame.setContentPane(aAxisCamera_V1);
               frame.setSize(aAxisCamera_V1.getSize());
               frame.addWindowListener(new java.awt.event.WindowAdapter() {
                    public void windowClosing(java.awt.event.WindowEvent e) {
                         System.exit(0);
               frame.show();
               java.awt.Insets insets = frame.getInsets();
               frame.setSize(frame.getWidth() + insets.left + insets.right, frame.getHeight() + insets.top + insets.bottom);
               frame.setVisible(true);
          } catch (Throwable exception) {
               System.err.println("Se ha producido una excepci�n en main() de javax.swing.JPanel");
               exception.printStackTrace(System.out);
public void paint(Graphics g) { //used to set the image on the panel
    if (AxisCamera_1.image != null) getCam1().getGraphics().drawImage(AxisCamera_1.image, 0, 0, getCam1());
    if (AxisCamera_2.image != null) getCam2().getGraphics().drawImage(AxisCamera_2.image, 0, 0, getCam2());
    repaint();
    public void readJPG() { //read the embedded jpeg image
        try {
            JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(dis);
            image = decoder.decodeAsBufferedImage();
        } catch (Exception e) {
            e.printStackTrace();
            disconnect();
    public void readLine(
        int n,
        DataInputStream dis) { //used to strip out the header lines
        for (int i = 0; i < n; i++) {
            readLine(dis);
    public void readLine(DataInputStream dis) {
        try {
            boolean end = false;
            String lineEnd = "\n"; //assumes that the end of the line is marked with this
            byte[] lineEndBytes = lineEnd.getBytes();
            byte[] byteBuf = new byte[lineEndBytes.length];
            while (!end) {
                dis.read(byteBuf, 0, lineEndBytes.length);
                String t = new String(byteBuf);
                //System.out.print(t); //uncomment if you want to see what the lines actually look like
                if (t.equals(lineEnd))
                    end = true;
        } catch (Exception e) {
            e.printStackTrace();
    public void readStream() { //the basic method to continuously read the stream
        try {
                while (true) {
                    connect();
                    readJPG();
                    parent.repaint();
                    disconnect();
        } catch (Exception e) {
    public void run() {
        connect();
        readStream();
public void update(Graphics g) {
    paint(g);
}