cannot stream webcam video from Raspberry to Tablet

Arjen Veenhuizen arjen.veenhuizen at tno.nl
Mon Nov 28 19:42:58 UTC 2016


On the sender side you should see caps which read something along the lines
of:

> application/x-rtp, media=(string)video, clock-rate=(int)90000,
> encoding-name=(string)H264, packetization-mode=(string)1,
> profile-level-id=(string)640014,
> sprop-parameter-sets=(string)"Z2QAFKzZQUH7ARAAAAMAEAAAAwPI8UKZYA\=\=\,aOvssiw\=",
> payload=(int)96, ssrc=(uint)4229631592, timestamp-offset=(uint)545396561,
> seqnum-offset=(uint)17428, a-framerate=(string)30

You should set these caps on the udpsrc element.

Make sure you receive any data at all by manually probing port 5000 UDP on
the windows device using an appropriate tool. You can also set the GST_DEBUG
environment variable to 3 (e.g. GST_DEBUG=3) to get a better idea of what is
happening in your pipelines.



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