Just if anyone cares, here's the source code! Of course the device needs enough memory to have one *gasp* 640*480 bitmap stored, but once you free up enough it should work for a while! It'll work for FOSCAMs and similar IP cameras that output 640x480 jpegs via
(very insecure
) GET transmission of your credentials
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.net.MalformedURLException;
import java.net.URL;
class IPCamViewer extends Frame implements ActionListener {
/**
*
*/
private static final long serialVersionUID = 1L;
private MediaTracker mediatracker;
private ImageCanvas imageCanvas;
private Image image;
private String host;
private int port;
private String username;
private String password;
private String url;
private int refreshRate = 5000; // refresh rate in ms
IPCamViewer
(String host_, int port_, String username_, String password_
) {
super
("IP Cam Viewer - "+host_+":"+port_
);
this.host = host_;
this.port = port_;
this.username = username_;
this.password = password_;
url= "http://"+host+":"+port+"/snapshot.cgi?user="+username+"&pwd="+password;
// Setup
setLayout
(new BorderLayout
(
)
);
setSize
(640, 480
);
addWindowListener
(new WindowAdapter
(
) {
public void windowClosing
(WindowEvent windowevent
) {
System.exit
(0
);
}
}
);
show
(
);
// create Image Canvas
imageCanvas = new ImageCanvas
(
);
mediatracker = new MediaTracker
(imageCanvas
);
image = null;
//updateImage
(
);
while
(true
){
try {
updateImage
(
);
Thread.sleep
(refreshRate
);
} catch
(InterruptedException e
) {
System.out.println
("Interrupted"
);
return;
}
}
}
public void updateImage
(
){
if
(image!= null
){
mediatracker.removeImage
(image, 0
);
image = null;
System.gc
(
);
}
try {
image = getToolkit
(
).getImage
(new URL
(url
)
);
} catch
(MalformedURLException e
) {
System.out.println
("Bad url"
);
}
if
(image == null
) {
System.out.println
("Error loading image"
);
return;
}
mediatracker.addImage
(image, 0
);
try {
mediatracker.waitForAll
(
);
} catch
(Exception exception
) {
exception.printStackTrace
(
);
}
imageCanvas.setImage
(image
);
add
(imageCanvas, "Center"
);
show
(
);
}
public static void main
(String args[]
) {
new IPCamViewer
("<hostname of IP cam>",<port>,"<username>","<password>"
); // fill in data here
}
public void actionPerformed
(ActionEvent actionevent
) {
System.out.println
(actionevent.getActionCommand
(
)
);
if
(actionevent.getActionCommand
(
).equals
("Close"
)
)
System.exit
(0
);
}
}
