How can I code a server/client video and audio streaming application?

I have to create a client/server system to stream video and audio. It would be very simple. Like youtube style. The server should attend clients providing a list of medias first and waiting the choice of each client to start streaming the media. Until create a socket and showing a simple list I'm on it ;) But I don't know which class could I use to stream. The example is basically youtube style. How can I start streaming, How can client pause reproduction, how can? I know how to stream text but what about video? Do you know any tutorial page? It's very different from this simple server client example?

import java.io.*; 
import java.io.*;
import java.net.*;

public class ThreadedEchoServer {

   public static void main(String[] args) {
      try {
         int i = 1;
         ServerSocket s = new ServerSocket(8189);

         while(true) {
            Runnable r = new ThreadedEchoHandler(incoming, i);
            Thread t = new Thread(r);
            t.start();
            i++;
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

class ThreadedEchoHandler implements Runnable {
   private Socket incoming;
   private int counter;

   public ThreadedEchoHandler(Socket i, int c) {
      incoming = i;
      counter = c;
   }

   public void run() {
      try {
         try {
            InputStream inStream = incoming.getInputStream();
            OutputStream outStream = incoming.getOutputStream();

            Scanner in = new Scanner(inStream);
            PrintWriter out = new PrintWriter(outStream);

            out.println("BYE to exit");
            boolean done = false;

            while (!done && in.hasNextLine()) {

               String line = in开发者_如何学C.nextLine()) {
               out.println("Echo: " + line);

               if (line.trim().equals("BYE"))
                  done = true;
               out.println("BYE to exit");
            }
         } finally {
            incoming.close();
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
}

Hope you could clarify my ideas. Kind regards.

For streaming and talking to your clients, you need to define a protocol: Search the web for RTP and RTSP. It should give you a pretty good idea of what you need to implement these protocols or even create your own one.

As for implementing, take a look at the red5 project: http://red5.org/

Take a look at Xuggler as well: http://www.xuggle.com/xuggler/ This project will help you saving lots of lines of code. Note that its development has gone stale.

Cheers.

Check out the Java Media Framework (it has tutorials): http://java.sun.com/javase/technologies/desktop/media/jmf/

Does this even work?

     while(true) {
        Runnable r = new ThreadedEchoHandler(incoming, i);
        Thread t = new Thread(r);
        t.start();
        i++;
     }

I think your code would produce a bunch of threads with incoming socket connections... what you probably want to do is this:

     while(true) {
        Runnable r = new ThreadedEchoHandler(incoming.accept(), i);
        Thread t = new Thread(r);
        t.start();
        i++;
     }

The ThreadedEchoHandler should take a Socket instead of a ServerSocket. Accept blocks until a client connects, otherwise you'll be spawning an infinite number of threads without a connection... I don't think you have anything that will stop you from doing that at the moment.

Guys thank you very much for your answers and for editing title. I'm new here, new on java, new on networking. Why I'm making my skill on streaming? It's a study case. I'm looking at many tutorial about networking and I saw RTP but I didn't read about 'cause I thought (for reading on forums) it was just for real time streming meant as webcam streaming...but it's that I'm just so confused LOL

Lirik of course what you said, I forgot some lines of coding

while(true) {
   Socket incoming = s.accept();
   Runnable r = new ThreadedEchoHandler(incoming, i);
   ...

or as you said

while(true) {
  Runnable r = new ThreadedEchoHandler(s.accept(), i); 
  ...

Taking a look at what you said guys. Kind regards!