vp8dec not able to decode webrtc rtp stream

Jose Antonio Santos Cadenas santoscadenas at gmail.com
Mon Apr 1 00:00:29 PDT 2013

How are you generating the "unencrypted" WEBRTC stream?. Webrtc is
normally encrypted, that is why you are getting this error. I've
developed a plugin that can be used to send/receive webrtc. Currently
I'm improving it to use a different srtp plugins but the work is not
finished yet.

Here is the link.



2013/3/8 Saurabh Sabnis <sausab at gmail.com>:
> Hi,
> I am trying to capture an unencrypted RTP stream sent using WebRTC.
> I am using following pipeline to decode the stream:
> GST_DEBUG=p*:5 gst-launch-1.0 -vvv udpsrc
> caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)VP8-DRAFT-IETF-01,payload=(int)96"
> port=56103 ! rtpvp8depay ! vp8dec ! autovideosink
> and I am getting the following error:
> "No keyframe, skipping"
> vp8enc uses VP8-IETF-DRAFT-01. Is WebRTC using a newer version of this draft
> for encoding? Is that the reason why vp8dec is not able to decode the
> packets?
> Thanks and regards,
> --
> Saurabh Sabnis
> Graduate Student
> College of Computing
> Georgia Institute of Technology
> Atlanta, GA 30332-0280
> ssabnis3 at gatech.edu
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