src/jlibrtp/RTPReceiverThread.java
changeset 214 2bf440c54ca5
parent 213 9bdff6cbd120
child 215 5db64229be69
--- a/src/jlibrtp/RTPReceiverThread.java	Thu May 28 14:26:06 2009 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,169 +0,0 @@
-/**
- * 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.io.IOException;
-import java.net.DatagramPacket;
-import java.net.InetSocketAddress;
-
-/**
- * The RTP receiver thread waits on the designated UDP socket for new packets.
- * 
- * Once one arrives, it is parsed and tested. We also check the ip-address of the sender. 
- * If accepted, the packet is added onto the packet buffer of the participant.
- * 
- * A separate thread moves the packet from the packet buffer to the application.
- * 
- * @author Arne Kepp
- */
-public class RTPReceiverThread extends Thread {
-	/** Parent RTP Session */
-	RTPSession rtpSession = null;
-
-	RTPReceiverThread(RTPSession session) {
-		rtpSession = session;
-		if(RTPSession.rtpDebugLevel > 1) {
-			System.out.println("<-> RTPReceiverThread created");
-		} 
-	}
-
-	public void run() {
-		if(RTPSession.rtpDebugLevel > 1) {
-			if(rtpSession.mcSession) {
-				System.out.println("-> RTPReceiverThread.run() starting on MC " + rtpSession.rtpMCSock.getLocalPort() );
-			} else {
-				System.out.println("-> RTPReceiverThread.run() starting on " + rtpSession.rtpSock.getLocalPort() );
-			}
-		}
-
-		while(!rtpSession.endSession) {
-			if(RTPSession.rtpDebugLevel > 6) {
-				if(rtpSession.mcSession) {
-					System.out.println("-> RTPReceiverThread.run() waiting for MC packet on " + rtpSession.rtpMCSock.getLocalPort() );
-				} else {
-					System.out.println("-> RTPReceiverThread.run() waiting for packet on " + rtpSession.rtpSock.getLocalPort() );
-				}
-			}
-
-			// Prepare a packet
-			byte[] rawPkt = new byte[1500];
-			DatagramPacket packet = new DatagramPacket(rawPkt, rawPkt.length);
-			// Wait for it to arrive
-			if(! rtpSession.mcSession) {
-				//Unicast
-				try {
-					rtpSession.rtpSock.receive(packet);
-				} catch (IOException e) {
-					if(!rtpSession.endSession) {
-						e.printStackTrace();
-					} else {
-						continue;
-					}
-				}
-			} else {
-				//Multicast 
-				try {
-					rtpSession.rtpMCSock.receive(packet);
-				} catch (IOException e) {
-					if(!rtpSession.endSession) {
-						e.printStackTrace();
-					} else {
-						continue;
-					}
-				}
-			}
-
-			// Parse the received RTP (?) packet
-			RtpPkt pkt = new RtpPkt(rawPkt, packet.getLength());
-
-			// Check whether it was valid.
-			if(pkt == null) {
-				System.out.println("Received invalid RTP packet. Ignoring");
-				continue;
-			}
-			
-			long pktSsrc = pkt.getSsrc();
-			
-			// Check for loops and SSRC collisions
-			if( rtpSession.ssrc == pktSsrc )
-				rtpSession.resolveSsrcConflict();
-			
-			long[] csrcArray = pkt.getCsrcArray();
-			if( csrcArray != null) {
-				for(int i=0; i< csrcArray.length; i++) {
-					if(csrcArray[i] == rtpSession.ssrc);
-						rtpSession.resolveSsrcConflict();
-				}
-			}
-			
-			if(RTPSession.rtpDebugLevel > 17) {
-				System.out.println("-> RTPReceiverThread.run() rcvd packet, seqNum " + pktSsrc );
-				if(RTPSession.rtpDebugLevel > 10) {
-					String str = new String(pkt.getPayload());
-					System.out.println("-> RTPReceiverThread.run() payload is " + str );
-				}
-			}
-			
-			//Find the participant in the database based on SSRC
-			Participant part = rtpSession.partDb.getParticipant(pktSsrc);
-
-			if(part == null) {
-				InetSocketAddress nullSocket = null;
-				part = new Participant((InetSocketAddress) packet.getSocketAddress(), nullSocket, pkt.getSsrc());
-				part.unexpected = true;
-				rtpSession.partDb.addParticipant(1,part);
-			}
-
-			// Do checks on whether the datagram came from the expected source for that SSRC.
-			if(part.rtpAddress == null || packet.getAddress().equals(part.rtpAddress.getAddress())) {
-				PktBuffer pktBuffer = part.pktBuffer;
-
-				if(pktBuffer != null) {
-					//A buffer already exists, append to it
-					pktBuffer.addPkt(pkt);
-				} else {
-					// Create a new packet/frame buffer
-					pktBuffer = new PktBuffer(this.rtpSession, part,pkt);
-					part.pktBuffer = pktBuffer;
-				}
-			} else {
-				System.out.println("RTPReceiverThread: Got an unexpected packet from " + pkt.getSsrc() 
-						+ " the sending ip-address was " + packet.getAddress().toString() 
-						+ ", we expected from " + part.rtpAddress.toString());
-			}
-
-			// Statistics for receiver report.
-			part.updateRRStats(packet.getLength(), pkt);
-			// Upate liveness
-			part.lastRtpPkt = System.currentTimeMillis();
-
-			if(RTPSession.rtpDebugLevel > 5) {
-				System.out.println("<-> RTPReceiverThread signalling pktBufDataReady");
-			}
-			
-			// Signal the thread that pushes data to application
-			rtpSession.pktBufLock.lock();
-			try { rtpSession.pktBufDataReady.signalAll(); } finally {
-				rtpSession.pktBufLock.unlock();
-			}
-
-		}
-	}
-
-}