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Tim Meehan
I'm running on Ubuntu, gstreamer 1.16.1 ...

I was trying to send the test video source, over rtp, to a videosink. It seems that I have to start the receiving end before the sending end.

# transmitter:
gst-launch-1.0 -v videotestsrc \
  ! video/x-raw, width=640, height=480 \
  ! vaapih265enc \
  ! rtph265pay config-interval=-1 \
  ! ufdpsink host=

gst-launch-1.0 -v udpsrc \
  ! application/x-rtp, encoding-name=H265, payload=96 \
  ! rtph265depay \
  ! vaapih265dec \
  ! queue \
  ! vaapisink

When I tried the same pipeline with H.264, I got the same behavior until i added "config-interval=1" ... but the H.265 test case doesn't seem to work unless I start the receiver first.

Any suggestions?

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