How to stream JPG Images?

Question

Hello,
I am looking to stream jpg images from a program my friend made. The format he sends is 4 bytes header then the jpg image, and I would prefer not to change this if I don't have to. I have created some code to do this, but I am unable to get to the camera currently to test it. Does this look like it will work (or am I on the wrong track completely?):
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.Socket;
import com.sun.image.codec.jpeg.ImageFormatException;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageDecoder;
public class CameraObservable
     private byte[] header = new byte[4];
     private boolean running = true;
     public CameraObservable(String ipAddress, int port)
          try
               Socket inputSocket = new Socket(ipAddress, port);          
               JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(inputSocket.getInputStream());
               while(running==true)
                    inputSocket.getInputStream().read(header);
                    BufferedImage myBufferedImage = decoder.decodeAsBufferedImage();
          } catch (ImageFormatException e)
               e.printStackTrace();
          } catch (IOException e)
               e.printStackTrace();
     public static void main(String[] args)
          new CameraObservable("192.168.1.3",5553);
}Thanks for your input,
Eric

Answer 1

You can't assume the read fills the buffer. See the Javadoc. See also DataInputStream.readFully().
You probably can't also assume that constructing the decoder doesn't read anything from the stream. I would construct a new one per image, after reading the header. I would also check what's in the header rather than just throwing it away.