Hi,
You can refer to steps in Jetson Nano FAQ
Q: Is there any example of running RTSP streaming?
For changing resolution and framerate of videotestsrc, you can set caps directly like:
videotestsrc is-live=1 ! video/x-raw,width=1920,height=1080,framerate=10/1 ! ...
Please also set is-live=1 to simulate a live source.
May also try udp streaming:
Gstreamer TCPserversink 2-3 seconds latency - #5 by DaneLLL