fixed rtp receiver deadlock on RTP packet receiver buffer overflow. clearing buffer on rtp stream initialization

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@825 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmRtpReceiver.cpp

@@ -101,7 +101,11 @@ void AmRtpReceiver::run()
       if(it != streams.end()) {
 	AmRtpPacket* p = it->second->newPacket();
 	if (!p) {
-	  WARN("RTP packet receive buffer full.\n");
+	  WARN("RTP packet receive buffer full, dropping packet.\n");
+	  // drop received data
+ 	  AmRtpPacket dummy;
+ 	  dummy.recv(tmp_fds[i].fd);
+	  streams_mut.unlock();
 	  continue;
 	}
 

core/AmRtpStream.cpp

@@ -408,6 +408,7 @@ void AmRtpStream::pause()
 void AmRtpStream::resume()
 {
   gettimeofday(&last_recv_time,NULL);
+  mem.clear();
 }
 
 void AmRtpStream::setOnHold(bool on_hold) {
@@ -517,3 +518,8 @@ inline void PacketMem::freePacket(AmRtpPacket* p) {
 
   used[p-packets] = false;
 }
+
+inline void PacketMem::clear() {
+  memset(used, 0, sizeof(used));
+}
+