gstreamer fpsdisplaysink videorate

$ export URI=rtsp://root:A1234567@192.168.112.202:554/live1s1.sdp

$ export GST_DEBUG=fpsdisplaysink:5

利用 videotestsrc 測試 fpsdisplaysink

$ gst-launch-1.0 videotestsrc ! 'video/x-raw,width=1280,height=720,framerate=60/1' ! videoconvert ! fpsdisplaysink text-overlay=true

fpsdisplaysink 不使用 text-overlay

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! decodebin  ! nvvideoconvert ! nvegltransform ! fpsdisplaysink text-overlay=0 video-sink=nveglglessink

fpsdisplaysink 使用 text-overlay

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! decodebin  ! nvvideoconvert ! fpsdisplaysink text-overlay=1 video-sink=autovideosink

利用 videorate 設定 framerate

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! decodebin ! nvvideoconvert ! videorate ! video/x-raw,framerate=60/1 ! nvvideoconvert ! fpsdisplaysink text-overlay=1 video-sink=autovideosink

加入 rtpjitterbuffer,  但好像沒用

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! rtpjitterbuffer latency=0 ! decodebin  ! nvvideoconvert ! fpsdisplaysink text-overlay=1 video-sink=autovideosink

不顯示, 但從 log 中可查看出 fps

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! decodebin  ! nvvideoconvert ! fpsdisplaysink text-overlay=0 video-sink=fakesink

輸出

:00:02.590692019 1665816 0xffff6001d700 DEBUG         fpsdisplaysink fpsdisplaysink.c:372:display_current_fps:<fpsdisplaysink0> Updated max-fps to 1.102534

0:00:02.590778644 1665816 0xffff6001d700 DEBUG         fpsdisplaysink fpsdisplaysink.c:376:display_current_fps:<fpsdisplaysink0> Updated min-fps to 1.102534

$ gst-launch-1.0 rtspsrc location=$URI protocols=tcp+udp ! application/x-rtp, media=video ! decodebin  ! nvvideoconvert ! videorate ! video/x-raw,framerate=60/1 ! nvvideoconvert ! fpsdisplaysink text-overlay=0 video-sink=fakesink