title: GStreamer videotestsrc to RTP
body: <p>I'm just trying to get an RTP sample working, but every example I've seen doesn't execute due to missing plugins or incorrect pins.</p>
  
  <p>This seems the most promising, but, although the server and client seem to launch properly and go to "PLAYING", nothing happens:</p>
  
  <p>Server:</p>
  
  <pre><code>gst-launch -v videotestsrc ! \
      video/x-raw-rgb, format=\(fourcc\)RGB, width=4, height=4, frame-rate=1/1 ! rtpvrawpay !
      udpsink host=127.0.0.1 
  </code></pre>
  
  <p>Server output:</p>
  
  <pre><code>/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGB, depth=(string)8, width=(string)4, height=(string)4, colorimetry=(string)SMPTE240M, payload=(int)96, ssrc=(uint)3779397700, clock-base=(uint)1161131286, seqnum-base=(uint)43390
  Pipeline is PREROLLED ...
  Setting pipeline to PLAYING ...
  </code></pre>
  
  <p>Client:</p>
  
  <pre><code>gst-launch-0.10 -v udpsrc caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGB, depth=(string)8, width=(string)4, height=(string)4, colorimetry=(string)SMPTE240M, payload=(int)96, ssrc=(uint)3779397700, clock-base=(uint)1161131286, seqnum-base=(uint)43390" ! rtpvrawdepay ! xvimagesink 
  </code></pre>
  
  <p>Client output:</p>
  
  <pre><code>Setting pipeline to PAUSED ...
  Pipeline is live and does not need PREROLL ...
  Setting pipeline to PLAYING ...
  New clock: GstSystemClock
  /GstPipeline:pipeline0/GstRtpVRawDepay:rtpvrawdepay0.GstPad:src: caps = video/x-raw-rgb, width=(int)4, height=(int)4, format=(fourcc)0x00000000, framerate=(fraction)0/1, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, bpp=(int)24, depth=(int)24
  /GstPipeline:pipeline0/GstRtpVRawDepay:rtpvrawdepay0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGB, depth=(string)8, width=(string)4, height=(string)4, colorimetry=(string)SMPTE240M, ssrc=(uint)3779397700, clock-base=(uint)1161131286, seqnum-base=(uint)43390
  </code></pre>