Set the RTP Marker flag for the last RTP packet of a frame.

src/org/jitsi/impl/neomedia/codec/video/vp8/Packetizer.java

@@ -120,6 +120,7 @@ protected int doProcess(Buffer inputBuffer, Buffer outputBuffer)
         if(inLen <= MAX_SIZE)
         {
             firstPacket = true;
+            outputBuffer.setFlags(outputBuffer.getFlags() | Buffer.FLAG_RTP_MARKER);
             return BUFFER_PROCESSED_OK;
         }
         else