gstreamer and opencv

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i could play the video stream by running the command on terminal given below:

gst-launch-1.0 udpsrc port=4600 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! rtph264depay ! avdec_h264 ! autovideosink fps-update-interval=1000 sync=false

i want to get the same frames in my opencv file for some processing, can anyone help me?