Deepstream 5.1 can't open rtsp stream, but both opencv and ffmpeg are ok

[DaneLLL]

Hi,
Please break down the pipeline in gst-launch-1.0 command like:
memory leak when reconnection to camera using gstreamer on TX1 platform - #4 by DaneLLL

Would like to make sure the URI is valid and at least can run rtspsrc ! fakesink.