Issue in example pipelines of rtpulpfecenc, rtpulpfecdec

kuttypaiyan parithi at gmail.com
Fri May 22 04:33:29 UTC 2020


Hi All,

I am trying to run the example pipelines given for rtpulpfecenc and
rtpulpfecdec. It works properly, but rtpjitterbuffer keeps on throwing
follwing error.

0:00:01.351108083 100691      0x138a1e0 WARN         rtpjitterbuffer
gstrtpjitterbuffer.c:3292:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> No
clock-rate in caps!, dropping buffer
0:00:01.383917198 100691      0x138a1e0 ERROR        rtpjitterbuffer
gstrtpjitterbuffer.c:1435:gst_jitter_buffer_sink_parse_caps:<rtpjitterbuffer0>
Got caps with wrong payload type (got 122, expected 96)

It would be helpful if somebody clarify the cause of above mentioned issue
and is there way to fix this?

*rtpulpfecenc pipeline:*
 gst-launch-1.0 videotestsrc ! x264enc ! video/x-h264, profile=baseline !
rtph264pay pt=96 ! rtpulpfecenc percentage=100 pt=122 ! udpsink port=8888

above pipeline is copied from here.
https://gstreamer.freedesktop.org/documentation/rtp/rtpulpfecenc.html?gi-language=c
<https://gstreamer.freedesktop.org/documentation/rtp/rtpulpfecenc.html?gi-language=c>  

*rtpulpfecdec pipeline*
gst-launch-1.0 udpsrc port=8888 caps="application/x-rtp, payload=96,
clock-rate=90000" ! rtpstorage size-time=220000000 ! rtpssrcdemux !
application/x-rtp, payload=96, clock-rate=90000, media=video,
encoding-name=H264 ! rtpjitterbuffer do-lost=1 latency=200 !  rtpulpfecdec
pt=122 ! rtph264depay ! avdec_h264 ! videoconvert !
autovideosink--gst-debug=rtpjitterbuffer:4

above pipeline is copied from here.
https://gstreamer.freedesktop.org/documentation/rtp/rtpulpfecdec.html?gi-language=c
<https://gstreamer.freedesktop.org/documentation/rtp/rtpulpfecdec.html?gi-language=c>  




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