vp8dec not able to decode webrtc rtp stream

[Saurabh Sabnis]

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 Is WebRTC using a newer version of this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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