How can see the fps of the original uri rtsp video

you can use ffplay, VLC or other players to get the original fps. you also can use the following comamnd-line to test the original fps. please refer to this topic.

gst-launch-1.0  rtspsrc location=rtsp:// ! rtph264depay ! h264parse ! decodebin ! fpsdisplaysink video-sink=fakesink  text-overlay=false sync=false -v |grep current