IP Camera connection in JAVA and taking jpeg snapshot every 40 sec

[Adnan Liaqat]

Hello ! Dear,

I am trying to connect IP Camera in JAVA and tacking a JPEG snapshot
after 40sec and store in Hard Drive. I have no idea with this please
help me ................. thanks

Following Code without any showing result:
**************************************************
public class IPCameraConnection extends Applet implements Runnable
{
public boolean useMJPGStream = true;
String appletToLoad;
Thread appletThread;

public String mjpgURL ="http://192.168.1.10";

DataInputStream dis;
private Image image=null;
public Dimension imageSize = null;
public boolean connected = false;
private boolean initCompleted = false;
HttpURLConnection huc=null;
Component parent;

public IPCameraConnection (Component par)
{
parent = par;
}


public void connect()
{
Socket socket = null;
HttpURLConnection httpConn= null;
try
{
URL u = new URL(mjpgURL);

huc = (HttpURLConnection) u.openConnection();
String encoding = new
sun.misc.BASE64Encoder().encode("admin:admin".getBytes());
huc.setRequestProperty ("Authorization", "Basic " +
encoding);
System.out.println("con open complete");
//System.out.println(huc.getContentType());
InputStream is = huc.getInputStream();
System.out.println("input stream got");
connected = true;
//BufferedInputStream bis = new BufferedInputStream(is);
dis= new DataInputStream(is);

if(!initCompleted)
System.out.println("!init complete");
initDisplay();
}
catch(IOException e)
{
//incase no connection exists wait and try again,
instead of printing the error
try
{
System.out.println("Exception :
"+e.getMessage());
System.out.println("no con");
huc.disconnect();
Thread.sleep(60);
}
catch(InterruptedException ie)
{
System.out.println("no con excp");
huc.disconnect();
connect();
}
connect();
}
catch(Exception e){;}
}
public void initDisplay()
{
//setup the display
if (useMJPGStream)
{
System.out.println("mpg-------------------------------");
readMJPGStream();
}
else
{
System.out.println("jpg");
readJPG();
disconnect();
}
imageSize = new Dimension(image.getWidth(this),
image.getHeight(this));
//setPreferredSize(imageSize);
//parent.setSize(imageSize);
//parent.validate();
initCompleted = true;
}
public void disconnect()
{
try
{
if(connected)
{
dis.close();
connected = false;
}
}
catch(Exception e){;}
}
public void init()
{
System.out.println("Starting Applet");
appletToLoad = getParameter("appletToLoad");
setBackground(Color.white);
}
public void paint(Graphics g)
{
//used to set the image on the panel
if (image != null)
g.drawImage(image, 0, 0, this);
else
System.out.println("empty frame");
}
public void run()
{
try
{
connect();
readStream();

Class appletClass = Class.forName(appletToLoad);
Applet realApplet = (Applet)appletClass.newInstance();
//realApplet.setStub(this);
setLayout( new GridLayout(1,0));
add(realApplet);
realApplet.init();
realApplet.start();
}
catch (Exception e)
{
System.out.println( e );
}
validate();
}
public void start()
{
appletThread = new Thread(this);
appletThread.start();
}
public void stop()
{
appletThread.stop();
appletThread = null;
}
public void readStream()
{
//the basic method to continuously read the stream
try
{
if (useMJPGStream)
{
while(true)
{
readMJPGStream();
//parent.repaint();
}
}
else
{
while(true)
{
connect();
readJPG();
//parent.repaint();
disconnect();
}
}

}
catch(Exception e){;}
}
public void readMJPGStream()
{
//preprocess the mjpg stream to remove the mjpg encapsulation

//Following commented on 07/08/2006
//readLine(3,dis); //discard the first 3 lines

//Following added on 07/08/2006
readLine(4, dis); //discard the first 4 lines for D-Link
DCS-900

readJPG();
readLine(2,dis); //discard the last two lines
}

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();
System.out.println("lineEndBytes....."+lineEndBytes);
byte[] byteBuf = new byte[lineEndBytes.length];
System.out.println("byteBuf......." + byteBuf);
byte[] bf = new byte[1024];
StringBuffer sb = new StringBuffer();
while(!end)
{
//dis.read(byteBuf,0,lineEndBytes.length);
//String t = "";
int i = dis.read();
sb.append((char)i);
if( i == -1)
end = true;
//if(byteBuf != null)
//{
//dis.read(byteBuf,0,lineEndBytes.length);

//t = dis.readLine();
//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 run()
// {
// connect();
// readStream();
// }

private void readJPG()
{
try
{
JPEGImageDecoder decoder =
JPEGCodec.createJPEGDecoder(dis);
image = decoder.decodeAsBufferedImage();
}
catch(Exception e)
{
e.printStackTrace();disconnect();
}
}

[dinorb]

Maybe my code can help you to get on the right track. I use
MarvinFramework and works amaizingly well.
Here's my code:
[CODE]
/**
Marvin Project <2007-2009>

Initial version by:

Danilo Rosetto Munoz
Fabio Andrijauskas
Gabriel Ambrosio Archanjo

site: http://marvinproject.sourceforge.net

GPL
Copyright (C) <2007>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along
with this program; if not, write to the Free Software Foundation,
Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

import marvin.gui.MarvinImagePanel;
import marvin.image.MarvinImage;
import marvin.image.MarvinImageMask;
import marvin.io.MarvinImageIO;
import marvin.plugin.MarvinImagePlugin;
import marvin.video.MarvinVideoManager;

@SuppressWarnings("serial")
public class Cam extends JFrame implements Runnable{

// GUI
private JPanel panelButton,
panelCenter;

private JButton buttonPlayStop, close;

private MarvinVideoManager videoManager;
private MarvinImagePanel videoPanel;

private MarvinImage imageIn;
private MarvinImage imageOut;
private MarvinImage imageLastFrame;
private MarvinImageMask imageMask;

private Thread thread;

private MarvinImagePlugin pluginImage;

private int cameraWidth,
cameraHeight;



public Cam(){

videoPanel = new MarvinImagePanel();
videoManager = new MarvinVideoManager(videoPanel);
videoManager.connect();
cameraWidth = videoManager.getCameraWidth();
cameraHeight = videoManager.getCameraHeight();

imageLastFrame = new MarvinImage(cameraWidth,cameraHeight);
imageMask = MarvinImageMask.NULL_MASK;

loadGUI();
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);


thread = new Thread(this);
thread.start();
}

private void loadGUI(){
setTitle("Video Sample - Filters");

// Buttons
ButtonHandler l_handler = new ButtonHandler();
buttonPlayStop = new JButton("Snapshot");
close = new JButton("Close");
buttonPlayStop.addActionListener(l_handler);
close.addActionListener(l_handler);


// Panels
panelButton = new JPanel();
panelButton.add(buttonPlayStop);
panelButton.add(close);


panelCenter = new JPanel(new BorderLayout());
panelCenter.add(videoPanel, BorderLayout.NORTH);
panelCenter.add(panelButton, BorderLayout.SOUTH);


Container l_container = getContentPane();
l_container.setLayout(new BorderLayout());
l_container.add(panelCenter, BorderLayout.CENTER);

setSize(cameraWidth,cameraHeight+65);
setResizable(false);
setVisible(true);
}


public void run(){
while(true){

imageIn = videoManager.getCapturedImage();
imageOut = videoManager.getResultImage();

if(pluginImage == null){
MarvinImage.copyColorArray(imageIn, imageOut);
}
if(pluginImage != null){
pluginImage.process(imageIn, imageOut, null, imageMask, false);
}

MarvinImage.copyColorArray(imageIn, imageLastFrame);
videoManager.updatePanel();
}

}
public void snapshot(){
MarvinImage snapshot = videoManager.getResultImage();
snapshot.update();
MarvinImageIO.saveImage(snapshot, "./snapshot.JPG");
}

private class ButtonHandler implements ActionListener{
public void actionPerformed(ActionEvent a_event){
if(a_event.getSource() == buttonPlayStop){
snapshot();
} else if(a_event.getSource() == close){
dispose();
videoManager.disconnect();
}
}
}

}
[/CODE]
This takes snapshoots. To take a snapshoot every 40 sec you just have
to add maybe 2 more Lines of code. I hope this can help you.

[Adnan Liaqat]

Thank you for the time you spent helping me over the email. I realize you are busy, and I appreciate your spending so much time helping me untangle my IP Camera code with your.

thanks for this anticipation, Can you add me on skype (adnaniiui) for normal conversation and hello hy , if you don't feel free

again thanks  

------
With Kind Regard,

Adnan Liaqat 

adnan...@gmail.com
Skype:: adnaniiui

                           " ~ Education is not preparation for life ; 

                                           ~  Education is itself life"   

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