--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jlibrtp/AppCallerThread.java	Sat Mar 14 22:15:41 2009 +0100
@@ -0,0 +1,110 @@
+/**
+ * Java RTP Library (jlibrtp)
+ * Copyright (C) 2006 Arne Kepp
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+package jlibrtp;
+
+import java.util.Enumeration;
+
+/**
+ * The purpose of this thread is to check whether there are packets ready from 
+ * any participants.
+ * 
+ * It should sleep when not in use, and be woken up by a condition variable.
+ * 
+ * Optionally, if we do jitter-control, the condition variable should have a max waiting period 
+ * equal to how often we need to push data.
+ * 
+ * @author Arne Kepp
+ */
+public class AppCallerThread extends Thread {
+	/**  The parent RTP Session */
+	RTPSession rtpSession;
+	/**  The applications interface, where the callback methods are called */
+	RTPAppIntf appl;
+	
+	/**
+	 * Instatiates the AppCallerThread
+	 * 
+	 * @param session the RTPSession with participants etc
+	 * @param rtpApp the interface to which data is given
+	 */
+	protected AppCallerThread(RTPSession session, RTPAppIntf rtpApp) {
+		rtpSession = session;
+		appl = rtpApp;
+		if(RTPSession.rtpDebugLevel > 1) {
+			System.out.println("<-> AppCallerThread created");
+		}  
+	}
+	
+	/**
+	 * The AppCallerThread will run in this loop until the RTPSession
+	 * is terminated.
+	 * 
+	 * Whenever an RTP packet is received it will loop over the
+	 * participants to check for packet buffers that have available
+	 * frame.
+	 */
+	public void run() {
+		if(RTPSession.rtpDebugLevel > 3) {
+			System.out.println("-> AppCallerThread.run()");
+		}
+		
+		while(rtpSession.endSession == false) {
+			
+			rtpSession.pktBufLock.lock();
+		    try {
+				if(RTPSession.rtpDebugLevel > 4) {
+					System.out.println("<-> AppCallerThread going to Sleep");
+				}
+				
+				try { rtpSession.pktBufDataReady.await(); } 
+					catch (Exception e) { System.out.println("AppCallerThread:" + e.getMessage());}
+					
+		    	// Next loop over all participants and check whether they have anything for us.
+				Enumeration<Participant> enu = rtpSession.partDb.getParticipants();
+				
+				while(enu.hasMoreElements()) {
+					Participant p = enu.nextElement(); 
+					
+					boolean done = false;
+					//System.out.println(p.ssrc + " " + !done +" " + p.rtpAddress 
+					//		+ " " + rtpSession.naiveReception + " " + p.pktBuffer);
+					//System.out.println("done: " + done + "  p.unexpected: " + p.unexpected);
+					while(!done && (!p.unexpected || rtpSession.naiveReception) 
+							&& p.pktBuffer != null && p.pktBuffer.length > 0) {
+
+						DataFrame aFrame = p.pktBuffer.popOldestFrame();
+						if(aFrame == null) {
+							done = true;
+						} else {
+							appl.receiveData(aFrame, p);
+						}
+					}
+				}
+		    
+		     } finally {
+		       rtpSession.pktBufLock.unlock();
+		     }
+			
+		}
+		if(RTPSession.rtpDebugLevel > 3) {
+			System.out.println("<- AppCallerThread.run() terminating");
+		}  
+	}
+
+}