: Re: Problems Streaming Video using SDP File in Windows

[Jon Lovewell]

Tim thanks for your reply

> I am trying to stream h264 encoded video over rtp using an SDP file in
> Windows (8.1) using V1.2.1 of gstreamer.
> I have tried a number of different pipeline combinations:
>
> 1.      gst-launch-1.0 -v playbin uri=file:///D://stream.sdp ? this
> reports that there is no decoder available for type ?application/sdp?.
> I believe that this is due to the sdpdemux element having a rank of
> none?

>Correct, related to https://bugzilla.gnome.org/show_bug.cgi?id=702495

Noted thanks.


> 2.      gst-launch-1.0 -v filesrc location=D:\\stream.sdp ! sdpdemux !

> decodebin ! autovideosink ? no missing elements are reported but

> nothing is ever displayed.



>This should work I think. What is the output of -v ? Are you maybe missing a videoconvert ! videoscale in front of autovideosink?



Ok tried with videoconvert ! videoscale in the pipeline.  Output from -v shown below

D:\gstreamer\1.0\x86\bin>gst-launch-1.0 -v filesrc location=D:\\stream.sdp ! sdpdemux !decodebin ! videoconvert ! videoscale ! autovideosink
Setting pipeline to PAUSED ...
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0: timeout = 10000000000
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0: timeout = 0
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_src_0_1758586524_96: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0.GstGhostPad:recv_rtp_src_0_1758586524_96: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0.GstGhostPad:recv_rtp_src_0_1758586524_96.GstProxyPad:proxypad6: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_src_0_1758586524_96.GstProxyPad:proxypad5: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstRtpH264Depay:rtph264depay0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:send_rtcp_src: caps = application/x-rtcp
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstRtpBin:rtpbin0.GstGhostPad:send_rtcp_src_0: caps = application/x-rtcp/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtcp
/GstPipeline:pipeline0/GstSDPDemux:sdpdemux0/GstRtpBin:rtpbin0.GstGhostPad:send_rtcp_src_0.GstProxyPad:proxypad4: caps = application/x-rtcp

No further output is ever displayed, it just gets to here and hangs.


> 3.      gst-launch-1.0 -v udpsrc port=5000 caps="application/x-rtp,

> media=(string)video, payload=(int)96, clock-rate=(int)9000,

> encoding-name=(string)H264" ! rtpbin ! decodebin ! autovideosink ?

> this reports that a H264 video rtp depayloader plugin is required to

> play this stream but not installed.  Not sure why this is as it has a

> rank of secondary.



>According to gst-inspect-1.0 rtph264depay the depayloader expects a clock-rate of 90000 not 9000.



Apologies my bad! Changed the caps and added videoconvert ! videoscale into the pipeline for good measure, but still no joy.  Output from -v shown below.



D:\gstreamer\1.0\x86\bin>gst-launch-1.0 -v udpsrc port=5000 caps="application/x-rtp,media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264" ! rtpbin ! decodebin ! videoconvert ! videoscale ! autovideosink

Setting pipeline to PAUSED ...

/GstPipeline:pipeline0/GstUDPSrc:udpsrc0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0.GstProxyPad:proxypad2: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

Pipeline is live and does not need PREROLL ...

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSsrcDemux:rtpssrcdemux0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

Setting pipeline to PLAYING ...

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

New clock: GstSystemClock

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpPtDemux:rtpptdemux0.GstPad:sink:caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstUDPSrc:udpsrc0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0.GstProxyPad:proxypad2: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSsrcDemux:rtpssrcdemux0.GstPad:src_1758586524: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpPtDemux:rtpptdemux0.GstPad:sink:caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSsrcDemux:rtpssrcdemux0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_src_0_1758586524_96: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_src_0_1758586524_96.GstProxyPad:proxypad3: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstRtpH264Depay:rtph264depay0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpPtDemux:rtpptdemux0.GstPad:sink:caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)1758586524

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSsrcDemux:rtpssrcdemux0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264

Again the pipeline just hangs here.

Not sure if it would help to interrogate any specific element using gst-debug with a higher level, any ideas, thoughts etc welcome.

Thanks in advance

Jon
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