use gstreamer to stream decklinkvideosource into transport stream

[g.roelant at telenet.be]

Hi, 
  
I want to stream my video from my decklink card into a transport stream. 
i'm having this: 
  
gst-launch-1.0 decklinkvideosrc device-number=2 connection=HDMI mode=11 ! video/x-raw,format=I420,width=1920 ,height=1080,profile=main ! x264enc tune=zerolatency byte-stream=true bitrate=10000 threads=2 ! h264parse config-interval=1 ! rtph264pay ! udpsink host=127.0.0.1 port=5000 
WAARSCHUWING: foutieve pijplijn: kon decklinkvideosrc0 niet verbinden met x264enc0 
  
gstreamer can not connect decklinkvideosrc0 to x264enc0 
  
i am stuck here.... 
  
what am i doing wrong?? 
any hints/help ? 
  
kind regards 
  
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