> > While the H264LiveServerMediaSession constructor is called once - the > > createNewRTPSink/createNewStreamSource are called twice (?!) upon RTSP > > connection. May be this is the real reason of > > "FramedSource[0x1bf42e0]::getNextFrame(): > > attempting to read more" message ? > > No, I don?t think so, because between the two calls to > ?createNewStreamSource()?, there should be a call to > ?~H264VideoStreamDiscreteFramer()? (i.e., to close the object that was > created by the first "createNewStreamSource()?. This is the case because you > set the ?reuseFirstSource? parameter to True in your call to the > ?OnDemandServerMediaSubsession? constructor.
Ok then how to fix/debug further this message and SIGSEGV ? Seems like nobody is using the source twice but the bug is still present. > >> If you know the SPS and PPS NAL units ahead of time, then you can add > >> them as (otherwise optional) parameters to the call to > >> ?H264VideoRTPSink::createNew()? in ?playCommon.cpp?. > > > Are you *sure* that there was no "sprop-parameter-sets=? assignment in a > "a=fmtp:? line in the SDP description returned by SIP? If there was, > then it should end up in the ?MediaSubsession? object. Definitely sure as the playSIP prints all the SIP messages to the stderr: ... *** continueAfterDESCRIBE Opened URL "sip:100@10.1.1.208", returning a SDP description: v=0 o=- 2849339286 1 IN IP4 10.1.1.208 s=playSIP session c=IN IP4 10.1.1.208 t=0 0 m=audio 8010 RTP/AVP 0 m=video 8000 RTP/AVP 99 b=AS:224 a=rtpmap:99 H264/90000 a=fmtp:99 profile-level-id=42801F; packetization-mode=1 .... As I guess the sprop-parameter-sets is used by the livecams only. > But otherwise, your RTSP server is not going to work properly (or, more > accurately, it will work, but clients won?t be able to play the stream > because they won?t know the SPS and PPS NAL units before they start > playing the stream). Is it the case that the SPS and PPS NAL units > don?t appear in the SIP SDP, but instead appear inline (e.g., > periodically) in the H.264 stream? If that?s the case, then you?ll have > to implement the ?getAuxSDPLine()? virtual function in your > ?H264LiveServerMediaSession? class. For guidance on how to do this, see > how we implement the ?H264VideoFileServerMediaSubsession? class. Ok, will try to implement the same in H264LiveServerMediaSession Thanks, Rus > > > Ross Finlayson > Live Networks, Inc. > http://www.live555.com/ > > > _______________________________________________ > live-devel mailing list > live-devel@lists.live555.com > http://lists.live555.com/mailman/listinfo/live-devel > _______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
