Pas de réception avec RTP

Bonjour, je suis étudiant et pour un projet je dois transférer l'image d'une webcam via internet, pour ce faire je souhaite utiliser java.

Mon niveau en Java est plutôt bas, mais la consigne est de se creuser la tête en utilisant des codes déjà existants, c'est pourquoi j'utilise les codes de Sun (complexes pour moi).

Je souhaite afficher la webcam branchée sur mon "serveur (192.168.0.10)" à partir de mon "client (192.168.0.11)", sauf que ça ne marche pas.

La transmission s'effectue apparemment correctement mais le client me dit répétitivement "- Waiting for RTP data to arrive...", puis "No RTP data was received." et enfin que l'initialisation ne s'est pas effectuée correctement.

J'ai essayer avec 192.168.0.255, avec 127.0.0.1, et les pare-feu des ordinateurs sont désactivés, ils sont branchés tous les deux sur une freebox.

Voila mes arguments :

AVTransmit3.java : vfw:/0 192.168.0.11 22222
AVReceive3.java : 192.168.0.10/22222

Et le code :

Code:

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/*  * @(#)AVTransmit3.java 1.2 01/03/13  *  * Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.  *  * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,  * modify and redistribute this software in source and binary code form,  * provided that i) this copyright notice and license appear on all copies of  * the software; and ii) Licensee does not utilize the software in a manner  * which is disparaging to Sun.  *  * This software is provided "AS IS," without a warranty of any kind. ALL  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY  * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR  * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE  * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING  * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS  * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,  * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER  * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF  * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE  * POSSIBILITY OF SUCH DAMAGES.  *  * This software is not designed or intended for use in on-line control of  * aircraft, air traffic, aircraft navigation or aircraft communications; or in  * the design, construction, operation or maintenance of any nuclear  * facility. Licensee represents and warrants that it will not use or  * redistribute the Software for such purposes.  */   import java.awt.*; import java.io.*; import java.net.InetAddress; import javax.media.*; import javax.media.protocol.*; import javax.media.protocol.DataSource; import javax.media.format.*; import javax.media.control.TrackControl; import javax.media.control.QualityControl; import javax.media.rtp.*; import javax.media.rtp.RTPSocketAdapter; import javax.media.rtp.rtcp.*; import com.sun.media.rtp.*;   public class AVTransmit3 {   // Input MediaLocator // Can be a file or http or capture source private MediaLocator locator; private String ipAddress; private int portBase;   private Processor processor = null; private RTPManager rtpMgrs[]; private DataSource dataOutput = null;   public AVTransmit3(MediaLocator locator, String ipAddress, String pb, Format format) {   this.locator = locator; this.ipAddress = ipAddress; Integer integer = Integer.valueOf(pb); if (integer != null) this.portBase = integer.intValue(); }   /**      * Starts the transmission. Returns null if transmission started ok.      * Otherwise it returns a string with the reason why the setup failed.      */ public synchronized String start() { String result;   // Create a processor for the specified media locator // and program it to output JPEG/RTP result = createProcessor(); if (result != null) return result;   // Create an RTP session to transmit the output of the // processor to the specified IP address and port no. result = createTransmitter(); if (result != null) { processor.close(); processor = null; return result; }   // Start the transmission processor.start();   return null; }   /**      * Stops the transmission if already started      */ public void stop() { synchronized (this) { if (processor != null) { processor.stop(); processor.close(); processor = null; for (int i = 0; i < rtpMgrs.length; i++) { rtpMgrs[i].removeTargets( "Session ended."); rtpMgrs[i].dispose(); } } } }   private String createProcessor() { if (locator == null) return "Locator is null";   DataSource ds; DataSource clone;   try { ds = javax.media.Manager.createDataSource(locator); } catch (Exception e) { return "Couldn't create DataSource"; }   // Try to create a processor to handle the input media locator try { processor = javax.media.Manager.createProcessor(ds); } catch (NoProcessorException npe) { return "Couldn't create processor"; } catch (IOException ioe) { return "IOException creating processor"; }   // Wait for it to configure boolean result = waitForState(processor, Processor.Configured); if (result == false) return "Couldn't configure processor";   // Get the tracks from the processor TrackControl [] tracks = processor.getTrackControls();   // Do we have atleast one track? if (tracks == null || tracks.length < 1) return "Couldn't find tracks in processor";   // Set the output content descriptor to RAW_RTP // This will limit the supported formats reported from // Track.getSupportedFormats to only valid RTP formats. ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP); processor.setContentDescriptor(cd);   Format supported[]; Format chosen; boolean atLeastOneTrack = false;   // Program the tracks. for (int i = 0; i < tracks.length; i++) { Format format = tracks[i].getFormat(); if (tracks[i].isEnabled()) {   supported = tracks[i].getSupportedFormats();   // We've set the output content to the RAW_RTP. // So all the supported formats should work with RTP. // We'll just pick the first one.   if (supported.length > 0) { if (supported[0] instanceof VideoFormat) { // For video formats, we should double check the // sizes since not all formats work in all sizes. chosen = checkForVideoSizes(tracks[i].getFormat(), supported[0]); } else chosen = supported[0]; tracks[i].setFormat(chosen); System.err.println("Track " + i + " is set to transmit as:"); System.err.println(" " + chosen); atLeastOneTrack = true; } else tracks[i].setEnabled(false); } else tracks[i].setEnabled(false); }   if (!atLeastOneTrack) return "Couldn't set any of the tracks to a valid RTP format";   // Realize the processor. This will internally create a flow // graph and attempt to create an output datasource for JPEG/RTP // audio frames. result = waitForState(processor, Controller.Realized); if (result == false) return "Couldn't realize processor";   // Set the JPEG quality to .5. setJPEGQuality(processor, 0.5f);   // Get the output data source of the processor dataOutput = processor.getDataOutput();   return null; }     /**      * Use the RTPManager API to create sessions for each media      * track of the processor.      */ private String createTransmitter() {   // Cheated. Should have checked the type. PushBufferDataSource pbds = (PushBufferDataSource)dataOutput; PushBufferStream pbss[] = pbds.getStreams();   rtpMgrs = new RTPManager[pbss.length]; SendStream sendStream; int port; SourceDescription srcDesList[];   for (int i = 0; i < pbss.length; i++) { try { rtpMgrs[i] = RTPManager.newInstance();   port = portBase + 2*i;   // Initialize the RTPManager with the RTPSocketAdapter rtpMgrs[i].initialize(new RTPSocketAdapter( InetAddress.getByName(ipAddress), port));   System.err.println( "Created RTP session: " + ipAddress + " " + port);   sendStream = rtpMgrs[i].createSendStream(dataOutput, i); sendStream.start(); } catch (Exception e) { return e.getMessage(); } }   return null; }     /**      * For JPEG and H263, we know that they only work for particular      * sizes.  So we'll perform extra checking here to make sure they      * are of the right sizes.      */ Format checkForVideoSizes(Format original, Format supported) {   int width, height; Dimension size = ((VideoFormat)original).getSize(); Format jpegFmt = new Format(VideoFormat.JPEG_RTP); Format h263Fmt = new Format(VideoFormat.H263_RTP);   if (supported.matches(jpegFmt)) { // For JPEG, make sure width and height are divisible by 8. width = (size.width % 8 == 0 ? size.width : (int)(size.width / 8) * 8); height = (size.height % 8 == 0 ? size.height : (int)(size.height / 8) * 8); } else if (supported.matches(h263Fmt)) { // For H.263, we only support some specific sizes. if (size.width < 128) { width = 128; height = 96; } else if (size.width < 176) { width = 176; height = 144; } else { width = 352; height = 288; } } else { // We don't know this particular format. We'll just // leave it alone then. return supported; }   return (new VideoFormat(null, new Dimension(width, height), Format.NOT_SPECIFIED, null, Format.NOT_SPECIFIED)).intersects(supported); }     /**      * Setting the encoding quality to the specified value on the JPEG encoder.      * 0.5 is a good default.      */ void setJPEGQuality(Player p, float val) {   Control cs[] = p.getControls(); QualityControl qc = null; VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG);   // Loop through the controls to find the Quality control for // the JPEG encoder. for (int i = 0; i < cs.length; i++) {   if (cs[i] instanceof QualityControl && cs[i] instanceof Owned) { Object owner = ((Owned)cs[i]).getOwner();   // Check to see if the owner is a Codec. // Then check for the output format. if (owner instanceof Codec) { Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null); for (int j = 0; j < fmts.length; j++) { if (fmts[j].matches(jpegFmt)) { qc = (QualityControl)cs[i]; qc.setQuality(val); System.err.println("- Setting quality to " + val + " on " + qc); break; } } } if (qc != null) break; } } }     /****************************************************************      * Convenience methods to handle processor's state changes.      ****************************************************************/   private Integer stateLock = new Integer(0); private boolean failed = false;   Integer getStateLock() { return stateLock; }   void setFailed() { failed = true; }   private synchronized boolean waitForState(Processor p, int state) { p.addControllerListener(new StateListener()); failed = false;   // Call the required method on the processor if (state == Processor.Configured) { p.configure(); } else if (state == Processor.Realized) { p.realize(); }   // Wait until we get an event that confirms the // success of the method, or a failure event. // See StateListener inner class while (p.getState() < state && !failed) { synchronized (getStateLock()) { try { getStateLock().wait(); } catch (InterruptedException ie) { return false; } } }   if (failed) return false; else return true; }   /****************************************************************      * Inner Classes      ****************************************************************/   class StateListener implements ControllerListener {   public void controllerUpdate(ControllerEvent ce) {   // If there was an error during configure or // realize, the processor will be closed if (ce instanceof ControllerClosedEvent) setFailed();   // All controller events, send a notification // to the waiting thread in waitForState method. if (ce instanceof ControllerEvent) { synchronized (getStateLock()) { getStateLock().notifyAll(); } } } }     /****************************************************************      * Sample Usage for AVTransmit3 class      ****************************************************************/   public static void main(String [] args) { // We need three parameters to do the transmission // For example, // java AVTransmit3 file:/C:/media/test.mov 129.130.131.132 42050   if (args.length < 3) { prUsage(); }   Format fmt = null; int i = 0;   // Create a audio transmit object with the specified params. AVTransmit3 at = new AVTransmit3(new MediaLocator(args[i]), args[i+1], args[i+2], fmt); // Start the transmission String result = at.start();   // result will be non-null if there was an error. The return // value is a String describing the possible error. Print it. if (result != null) { System.err.println("Error : " + result); System.exit(0); }   System.err.println("Start transmission for 60 seconds...");   // Transmit for 60 seconds and then close the processor // This is a safeguard when using a capture data source // so that the capture device will be properly released // before quitting. // The right thing to do would be to have a GUI with a // "Stop" button that would call stop on AVTransmit3 try { Thread.currentThread().sleep(60000); } catch (InterruptedException ie) { }   // Stop the transmission at.stop();   System.err.println("...transmission ended.");   System.exit(0); }     static void prUsage() { System.err.println("Usage: AVTransmit3 <sourceURL> <destIP> <destPortBase>"); System.err.println(" <sourceURL>: input URL or file name"); System.err.println(" <destIP>: multicast, broadcast or unicast IP address for the transmission"); System.err.println(" <destPortBase>: network port numbers for the transmission."); System.err.println(" The first track will use the destPortBase."); System.err.println(" The next track will use destPortBase + 2 and so on.\n"); System.exit(0); } }

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Code:

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/*  * @(#)AVReceive3.java 1.2 01/03/13  *  * Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.  *  * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,  * modify and redistribute this software in source and binary code form,  * provided that i) this copyright notice and license appear on all copies of  * the software; and ii) Licensee does not utilize the software in a manner  * which is disparaging to Sun.  *  * This software is provided "AS IS," without a warranty of any kind. ALL  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY  * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR  * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE  * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING  * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS  * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,  * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER  * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF  * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE  * POSSIBILITY OF SUCH DAMAGES.  *  * This software is not designed or intended for use in on-line control of  * aircraft, air traffic, aircraft navigation or aircraft communications; or in  * the design, construction, operation or maintenance of any nuclear  * facility. Licensee represents and warrants that it will not use or  * redistribute the Software for such purposes.  */   import java.io.*; import java.awt.*; import java.net.*; import java.awt.event.*; import java.util.Vector;   import javax.media.*; import javax.media.rtp.*; import javax.media.rtp.event.*; import javax.media.rtp.rtcp.*; import javax.media.rtp.RTPSocketAdapter; import javax.media.protocol.*; import javax.media.protocol.DataSource; import javax.media.format.AudioFormat; import javax.media.format.VideoFormat; import javax.media.Format; import javax.media.format.FormatChangeEvent; import javax.media.control.BufferControl;     /**  * AVReceive3 to receive RTP transmission using the RTPConnector.  */ public class AVReceive3 implements ReceiveStreamListener, SessionListener, ControllerListener { String sessions[] = null; RTPManager mgrs[] = null; Vector playerWindows = null;   boolean dataReceived = false; Object dataSync = new Object();     public AVReceive3(String sessions[]) { this.sessions = sessions; }   protected boolean initialize() {   try { mgrs = new RTPManager[sessions.length]; playerWindows = new Vector();   SessionLabel session;   // Open the RTP sessions. for (int i = 0; i < sessions.length; i++) {   // Parse the session addresses. try { session = new SessionLabel(sessions[i]); } catch (IllegalArgumentException e) { System.err.println("Failed to parse the session address given: " + sessions[i]); return false; }   System.err.println(" - Open RTP session for: addr: " + session.addr + " port: " + session.port + " ttl: " + session.ttl);   mgrs[i] = (RTPManager) RTPManager.newInstance(); mgrs[i].addSessionListener(this); mgrs[i].addReceiveStreamListener(this);   // Initialize the RTPManager with the RTPSocketAdapter mgrs[i].initialize(new RTPSocketAdapter( InetAddress.getByName(session.addr), session.port, session.ttl));   // You can try out some other buffer size to see // if you can get better smoothness. BufferControl bc = (BufferControl)mgrs[i].getControl("javax.media.control.BufferControl"); if (bc != null) bc.setBufferLength(350); }   } catch (Exception e){ System.err.println("Cannot create the RTP Session: " + e.getMessage()); return false; }   // Wait for data to arrive before moving on.   long then = System.currentTimeMillis(); long waitingPeriod = 30000; // wait for a maximum of 30 secs.   try{ synchronized (dataSync) { while (!dataReceived && System.currentTimeMillis() - then < waitingPeriod) { if (!dataReceived) System.err.println(" - Waiting for RTP data to arrive..."); dataSync.wait(1000); } } } catch (Exception e) {}   if (!dataReceived) { System.err.println("No RTP data was received."); close(); return false; }   return true; }     public boolean isDone() { return playerWindows.size() == 0; }     /**      * Close the players and the session managers.      */ protected void close() {   for (int i = 0; i < playerWindows.size(); i++) { try { ((PlayerWindow)playerWindows.elementAt(i)).close(); } catch (Exception e) {} }   playerWindows.removeAllElements();   // close the RTP session. for (int i = 0; i < mgrs.length; i++) { if (mgrs[i] != null) { mgrs[i].removeTargets( "Closing session from AVReceive3"); mgrs[i].dispose(); mgrs[i] = null; } } }     PlayerWindow find(Player p) { for (int i = 0; i < playerWindows.size(); i++) { PlayerWindow pw = (PlayerWindow)playerWindows.elementAt(i); if (pw.player == p) return pw; } return null; }     PlayerWindow find(ReceiveStream strm) { for (int i = 0; i < playerWindows.size(); i++) { PlayerWindow pw = (PlayerWindow)playerWindows.elementAt(i); if (pw.stream == strm) return pw; } return null; }     /**      * SessionListener.      */ public synchronized void update(SessionEvent evt) { if (evt instanceof NewParticipantEvent) { Participant p = ((NewParticipantEvent)evt).getParticipant(); System.err.println(" - A new participant had just joined: " + p.getCNAME()); } }     /**      * ReceiveStreamListener      */ public synchronized void update( ReceiveStreamEvent evt) {   RTPManager mgr = (RTPManager)evt.getSource(); Participant participant = evt.getParticipant(); // could be null. ReceiveStream stream = evt.getReceiveStream(); // could be null.   if (evt instanceof RemotePayloadChangeEvent) {   System.err.println(" - Received an RTP PayloadChangeEvent."); System.err.println("Sorry, cannot handle payload change."); System.exit(0);   }   else if (evt instanceof NewReceiveStreamEvent) {   try { stream = ((NewReceiveStreamEvent)evt).getReceiveStream(); DataSource ds = stream.getDataSource();   // Find out the formats. RTPControl ctl = (RTPControl)ds.getControl("javax.media.rtp.RTPControl"); if (ctl != null){ System.err.println(" - Recevied new RTP stream: " + ctl.getFormat()); } else System.err.println(" - Recevied new RTP stream");   if (participant == null) System.err.println(" The sender of this stream had yet to be identified."); else { System.err.println(" The stream comes from: " + participant.getCNAME()); }   // create a player by passing datasource to the Media Manager Player p = javax.media.Manager.createPlayer(ds); if (p == null) return;   p.addControllerListener(this); p.realize(); PlayerWindow pw = new PlayerWindow(p, stream); playerWindows.addElement(pw);   // Notify intialize() that a new stream had arrived. synchronized (dataSync) { dataReceived = true; dataSync.notifyAll(); }   } catch (Exception e) { System.err.println("NewReceiveStreamEvent exception " + e.getMessage()); return; }   }   else if (evt instanceof StreamMappedEvent) {   if (stream != null && stream.getDataSource() != null) { DataSource ds = stream.getDataSource(); // Find out the formats. RTPControl ctl = (RTPControl)ds.getControl("javax.media.rtp.RTPControl"); System.err.println(" - The previously unidentified stream "); if (ctl != null) System.err.println(" " + ctl.getFormat()); System.err.println(" had now been identified as sent by: " + participant.getCNAME()); } }   else if (evt instanceof ByeEvent) {   System.err.println(" - Got \"bye\" from: " + participant.getCNAME()); PlayerWindow pw = find(stream); if (pw != null) { pw.close(); playerWindows.removeElement(pw); } }   }     /**      * ControllerListener for the Players.      */ public synchronized void controllerUpdate(ControllerEvent ce) {   Player p = (Player)ce.getSourceController();   if (p == null) return;   // Get this when the internal players are realized. if (ce instanceof RealizeCompleteEvent) { PlayerWindow pw = find(p); if (pw == null) { // Some strange happened. System.err.println("Internal error!"); System.exit(-1); } pw.initialize(); pw.setVisible(true); p.start(); }   if (ce instanceof ControllerErrorEvent) { p.removeControllerListener(this); PlayerWindow pw = find(p); if (pw != null) { pw.close(); playerWindows.removeElement(pw); } System.err.println("AVReceive3 internal error: " + ce); }   }     /**      * A utility class to parse the session addresses.      */ class SessionLabel {   public String addr = null; public int port; public int ttl = 1;   SessionLabel(String session) throws IllegalArgumentException {   int off; String portStr = null, ttlStr = null;   if (session != null && session.length() > 0) { while (session.length() > 1 && session.charAt(0) == '/') session = session.substring(1);   // Now see if there's a addr specified. off = session.indexOf('/'); if (off == -1) { if (!session.equals("")) addr = session; } else { addr = session.substring(0, off); session = session.substring(off + 1); // Now see if there's a port specified off = session.indexOf('/'); if (off == -1) { if (!session.equals("")) portStr = session; } else { portStr = session.substring(0, off); session = session.substring(off + 1); // Now see if there's a ttl specified off = session.indexOf('/'); if (off == -1) { if (!session.equals("")) ttlStr = session; } else { ttlStr = session.substring(0, off); } } } }   if (addr == null) throw new IllegalArgumentException();   if (portStr != null) { try { Integer integer = Integer.valueOf(portStr); if (integer != null) port = integer.intValue(); } catch (Throwable t) { throw new IllegalArgumentException(); } } else throw new IllegalArgumentException();   if (ttlStr != null) { try { Integer integer = Integer.valueOf(ttlStr); if (integer != null) ttl = integer.intValue(); } catch (Throwable t) { throw new IllegalArgumentException(); } } } }     /**      * GUI classes for the Player.      */ class PlayerWindow extends Frame {   Player player; ReceiveStream stream;   PlayerWindow(Player p, ReceiveStream strm) { player = p; stream = strm; }   public void initialize() { add(new PlayerPanel(player)); }   public void close() { player.close(); setVisible(false); dispose(); }   public void addNotify() { super.addNotify(); pack(); } }     /**      * GUI classes for the Player.      */ class PlayerPanel extends Panel {   Component vc, cc;   PlayerPanel(Player p) { setLayout(new BorderLayout()); if ((vc = p.getVisualComponent()) != null) add("Center", vc); if ((cc = p.getControlPanelComponent()) != null) add("South", cc); }   public Dimension getPreferredSize() { int w = 0, h = 0; if (vc != null) { Dimension size = vc.getPreferredSize(); w = size.width; h = size.height; } if (cc != null) { Dimension size = cc.getPreferredSize(); if (w == 0) w = size.width; h += size.height; } if (w < 160) w = 160; return new Dimension(w, h); } }     public static void main(String argv[]) { if (argv.length == 0) prUsage();   AVReceive3 avReceive = new AVReceive3(argv); if (!avReceive.initialize()) { System.err.println("Failed to initialize the sessions."); System.exit(-1); }   // Check to see if AVReceive3 is done. try { while (!avReceive.isDone()) Thread.sleep(1000); } catch (Exception e) {}   System.err.println("Exiting AVReceive3"); }     static void prUsage() { System.err.println("Usage: AVReceive3 <session> <session> ..."); System.err.println(" <session>: <address>/<port>/<ttl>"); System.exit(0); }   }// end of AVReceive3

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Merci d'avance, j'ai passer la journée dessus, j'ai demandé à google mais pas de réponse qui fonctionne pour moi...