Stream using gstreamer with nvh264enc and nvh264dec

I’m using the following pipeline to stream the test video

gst-launch-1.0 videotestsrc ! video/x-raw,framerate=20/1 ! videoconvert ! nvh264enc ! rtph264pay ! udpsink host= port=5000

and using the following to receive the stream

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 ! decodebin ! videoconvert ! queue ! autovideosink

the streaming side starts fine with no issues and the clock is running.

the receiving side is set to playing but just waiting.

I want to use nvidia to decode as well. What would be the best pipeline to use here?
the stream should be h264 encoded video over UDP.