Hi, Thanks for your response My pipeline is as below: fakesink <---- rtppcmudepay <---- gstrtpbin <--- udpsrc do you mean that the source pad in the downstream element (which I suppose being a rtppcmudepay) is receiving buffer with those payloads? How did you detect such a behaviour? ---->Logs shows that gstrtbin is receiving rtp packets with different payload and looking for element for linking. As a further note, if your sending side is using the same port for PCMU and DTMF there may something wrong in its configuration. ---->No, This behaviour is right as per standard. Sender can use same port for RTP Audio (PCMU) and DTMF (RFC 2833)/ Thanks <div class="gmail_quote">On Mon, Dec 27, 2010 at 1:46 PM, Marco Ballesio <<a href="mailto:gibrovacco@gmail.com">gibrovacco@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi, it's not too clear how you're trying to get your data on the receiving pipeline. Can you post the structure of the pipeline you're using? Some more comments below. <div class="im"> On Mon, Dec 27, 2010 at 8:21 AM, Umakant Goyal <<a href="mailto:umakantgoyal1@gmail.com">umakantgoyal1@gmail.com</a>> wrote: > Hi All, > > I am making pipeline using gstrtpbin, rtppcmudepay, udpsrc and fakesink > elements to receive RTP audio stream from network. Everything goes fine when > i receive audio(pcmu) rtp packets with payload type 0 and encdoing-name > PCMU. But my pipeline breaks when i receive CN (comfort noise) rtp packets > with payload type 13 and dtmf packets with payload type 101. I have tried > lot to ignore these packets but i did not succeed to find out the solution > of my problem. Please help me by telling the possible solutions of my > problem. </div>can you collect a backtrace of the crash? It should be fairly easy with the aid of GDB. <div class="im"> > > I am also wondering why udpsrc element is receiving rtp messages with > payload 101 and 13 because i have set the caps for udpsrc as given below: > > media --> audio, > payload --> 0, > clock-rate --> 8000 > encoding-name --> PCMU, </div>do you mean that the source pad in the downstream element (which I suppose being a rtppcmudepay) is receiving buffer with those payloads? How did you detect such a behaviour? As a further note, if your sending side is using the same port for PCMU and DTMF there may something wrong in its configuration. <div class="im"> > > As per my understanding if i would set the above given caps to udpsrc then > it should ignore other rtp packets except with payload 0 and encoding-name > PCMU. > > Thanks </div>> ------------------------------------------------------------------------------ > Learn how Oracle Real Application Clusters (RAC) One Node allows customers > to consolidate database storage, standardize their database environment, > and, > should the need arise, upgrade to a full multi-node Oracle RAC database > without downtime or disruption > <a href="http://p.sf.net/sfu/oracle-sfdevnl" target="_blank">http://p.sf.net/sfu/oracle-sfdevnl</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption <a href="http://p.sf.net/sfu/oracle-sfdevnl" target="_blank">http://p.sf.net/sfu/oracle-sfdevnl</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>