say Wha?

v=0
o=- 0 0 IN IP4 131.156.68.186
s=No Name
c=IN IP4 131.156.68.186
t=0 0
a=tool:libavformat 55.48.100
m=video 5000 RTP/AVP 96
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1


///  gstreamer pipeline picks up stream ok:

gst-launch-1.0 -v udpsrc port=5000 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! rtph264depay ! avdec_h264 ! videoconvert ! autovideosink sync=false