I followed Wim's very helpful advice. It goes a bit further than before. Sadly, then there is a segment fault. # rtp-server gst-launch -v \ videotestsrc pattern=red \ ! video/x-raw-rgb, width=400, height=300, framerate=$fraction$10/1 \ ! rtpvrawpay ssrc=1 timestamp-offset=0 seqnum-offset=0 \ ! udpsink host=127.0.0.1 port=51234 # rtp-client caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)RAW,sampling=(string)RGBA,depth=(string)8,width=(string)4,height=(string)4,colorimetry=(string)SMPTE240M,payload=(int)96,ssrc=(uint)1,clock-base=(uint)0,seqnum-base=(uint)0,framerate=(fraction)10/1" gst-launch -v \ udpsrc uri=udp://<a href="http://127.0.0.1:51234">127.0.0.1:51234</a> caps=$caps \ ! rtpvrawdepay \ ! video/x-raw-rgb,format=$fourcc$RGBA,framerate=$fraction$10/1 \ ! ffmpegcolorspace \ ! ximagesink $ . rtp-client.sh Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock /GstPipeline:pipeline0/GstRtpVRawDepay:rtpvrawdepay0.GstPad:src: caps = video/x-raw-rgb, width=(int)4, height=(int)4, format=(fourcc)0x00000000, framerate=(fraction)0/1 /GstPipeline:pipeline0/GstRtpVRawDepay:rtpvrawdepay0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGBA, depth=(string)8, width=(string)4, height=(string)4, colorimetry=(string)SMPTE240M, payload=(int)96, ssrc=(uint)1, clock-base=(uint)0, seqnum-base=(uint)0, framerate=(fraction)10/1 Segmentation fault <div class="gmail_quote">On Fri, Sep 3, 2010 at 10:07 AM, Bert Douglas <<a href="mailto:bertd@tplogic.com">bertd@tplogic.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;"> Thanks much to Wim for the excellent pointer. --Bert<div><div></div><div class="h5"> <div class="gmail_quote">On Fri, Sep 3, 2010 at 3:10 AM, Wim Taymans <<a href="mailto:wim.taymans@gmail.com" target="_blank">wim.taymans@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;"><div>On Thu, 2010-09-02 at 23:54 -0500, Bert Douglas wrote: > Tristan tried to help me. I tried setting caps as recommended. Still > not working. </div>You're doing it wrong. read the instructions in this document carefully: <a href="http://cgit.freedesktop.org/gstreamer/gst-plugins-good/tree/gst/rtp/README#n251" target="_blank">http://cgit.freedesktop.org/gstreamer/gst-plugins-good/tree/gst/rtp/README#n251</a> Wim <div><div></div><div> > Thanks for looking. > > # rtp-server > gst-launch \ > videotestsrc pattern=red \ > ! video/x-raw-rgb, format=$fourcc$RGB, width=4, height=4, > frame-rate=1/1 \ > ! rtpvrawpay \ > ! udpsink host=127.0.0.1 port=51234 > > # rtp-client > CAPS="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)RAW," > CAPS= > $CAPS"sampling=(string)RGB,depth=(int)8,width=(int)4,height=(int)4" > gst-launch \ > udpsrc uri=udp://<a href="http://127.0.0.1:51234" target="_blank">127.0.0.1:51234</a> caps=$CAPS \ > ! rtpvrawdepay \ > ! video/x-raw-rgb, format=$fourcc$RGB, width=4, height=4, > frame-rate=1/1 \ > ! ffmpegcolorspace \ > ! ximagesink > > Setting pipeline to PAUSED ... > Pipeline is live and does not need PREROLL ... > Setting pipeline to PLAYING ... > New clock: GstSystemClock > 0:00:00.056868267 14918 0x1188c90 ERROR rtpvrawdepay > gstrtpvrawdepay.c:240:gst_rtp_vraw_depay_setcaps:<rtpvrawdepay0> no > width specified > ERROR: from element /GstPipeline:pipeline0/GstUDPSrc:udpsrc0: Internal > data flow error. > Additional debug info: > gstbasesrc.c(2562): gst_base_src_loop > (): /GstPipeline:pipeline0/GstUDPSrc:udpsrc0: > streaming task paused, reason not-negotiated (-4) > Execution ended after 18091128 ns. > Setting pipeline to PAUSED ... > Setting pipeline to READY ... > Setting pipeline to NULL ... > Freeing pipeline ... > > > </div></div>> ------------------------------------------------------------------------------ > This SF.net Dev2Dev email is sponsored by: > > Show off your parallel programming skills. > Enter the Intel(R) Threading Challenge 2010. > <a href="http://p.sf.net/sfu/intel-thread-sfd" target="_blank">http://p.sf.net/sfu/intel-thread-sfd</a> > _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">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> ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. <a href="http://p.sf.net/sfu/intel-thread-sfd" target="_blank">http://p.sf.net/sfu/intel-thread-sfd</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">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> </div></div></blockquote></div>