I am using the commands posted in the original post on windows to receive a rtp stream.<div>The commands mentioned in the links helped me to get to the error messages mentioned.</div><div> </div><div>I am streaming from a linux device and receiving on a windows system. <div class="gmail_quote">On Thu, Jan 17, 2013 at 11:58 PM, Chuck Crisler <<a href="mailto:ccrisler@mutualink.net" target="_blank">ccrisler@mutualink.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Here is an example of specifying caps. Your syntax is not right. gst-launch v4l2src device=/dev/video0 ! 'video/x-raw-yuv,width=640,height=480' ! x264enc Here is a link to some good introductory pipelines. <a href="http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet" target="_blank">http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet</a> Here is a link to the linux man page for gst-launch <a href="http://linux.die.net/man/1/gst-launch-0.10" target="_blank">http://linux.die.net/man/1/gst-launch-0.10</a> <div class="gmail_quote"><div><div class="h5">On Thu, Jan 17, 2013 at 10:34 AM, Subodh Chiwate <<a href="mailto:subodh.austin@gmail.com" target="_blank">subodh.austin@gmail.com</a>> wrote: </div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"> Hi All, I am new to the gstreamer world. I am facing issues while using gstreamer to receive a udp steam from a device.Following are the commands and the errors I got.Could some please help me with some guidance regarding the commands. ATTEMPT 1: Pasting the caps on transmitter side into receiver C:\Users\karti_000>gst-launch udpsrc port=2000 caps=\"application/x-rtp, media=( string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter -sets=(string)\"Z0IAHqaAoD2QAA\\=\\=\\,aM44gAA\\=\", payload=(int)96, ssrc=(uint )3636518815, clock-base=(uint)2800492737, seqnum-base=(uint)18406\" ! rtph264de pay ! ffdec_h264 ! autovideosink 0:00:00.052035000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:50 8:gst_parse_element_set:[Invalid UTF-8] could not set property "caps" in elemen t "udpsrc0" to "\x94application/x-rtp," 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "media" in element "udpsrc0" 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "clock-rate" in element "udpsrc0" 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "encoding-name" in element "udpsrc0" 0:00:00.055034000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "sprop-parameter-sets" in element "udpsrc0" 0:00:00.056037000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "payload" in element "udpsrc0" 0:00:00.056037000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "ssrc" in element "udpsrc0" 0:00:00.057037000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "clock-base" in element "udpsrc0" 0:00:00.057037000 6828 00302F70 ERROR GST_PIPELINE grammar.tab.c:49 3:gst_parse_element_set: no property "seqnum-base" in element "udpsrc0" [Invalid UTF-8] WARNING: erroneous pipeline: could not set property "caps" in el ement "udpsrc0" to "\x94application/x-rtp," **************************************************//****************************************************** ATTEMPT 2: directly playing the sdp file C:\Users\karti_000>gst-launch playbin2 uri=file:///C:/Users/karti_000/s2.sdp Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... ** (gst-launch-0.10:5808): CRITICAL **: file ..\..\..\..\..\Source\gst-plugins-b ad\gst\sdp\gstsdpdemux.c: line 382: assertion `host_name' failed New clock: GstSystemClock 0:00:00.542362000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.543363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.544362000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.544362000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.546363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.546363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.547363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.547363000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.548366000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.550368000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.550368000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.551367000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.551367000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.552368000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:00.553368000 5808 0221F948 ERROR ffmpeg .:0:: P sub_mb_t ype 27 out of range at 21 5 0:00:00.553368000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 21 5 0:00:00.582388000 5808 0221F948 ERROR ffmpeg .:0:: corrupted macroblock 41 0 (total_coeff=-1) 0:00:00.582388000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 41 0 0:00:00.584388000 5808 0221F948 ERROR ffmpeg .:0:: mb_type 73 in P slice too large at 20 1 0:00:00.585389000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 20 1 0:00:00.632421000 5808 0221F948 ERROR ffmpeg .:0:: top block unavailable for requested intra mode at 41 0 0:00:00.632421000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 41 0 0:00:00.753506000 5808 0221F948 ERROR ffmpeg .:0:: mb_type 46 in P slice too large at 16 1 0:00:00.754506000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 16 1 0:00:00.873583000 5808 0221F948 ERROR ffmpeg .:0:: out of ran ge intra chroma pred mode at 11 2 0:00:00.875583000 5808 0221F948 ERROR ffmpeg .:0:: error whil e decoding MB 11 2 0:00:00.998666000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.000673000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.001668000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.003669000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.004673000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.006671000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.008672000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.009673000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.011676000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.014683000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.016695000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.018683000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.019683000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.021681000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.022689000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.024684000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.027685000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.028691000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.030687000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.031687000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.032689000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.033691000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.034689000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.035690000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.036694000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one 0:00:01.037691000 5808 0221F948 ERROR ffmpeg .:0:: number of reference frames exceeds max (probably corrupt input), discarding one ERROR: from element /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDeco deBin2:decodebin20/GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0: Internal data flow e rror. Additional debug info: ..\..\..\Source\gstreamer\libs\gst\base\gstbasesrc.c(2507): gst_base_src_loop () : /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20 /GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0: streaming task paused, reason not-negotiated (-4) Execution ended after 1158778000 ns. Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ...<div> </div>-- Regards Subodh </div></div>_______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> <div> </div>-- Regards Subodh </div>