Unsteady playback/jitter
I have a 144 Hz monitor. I'm getting heavy jitter trying to play 72 and 144-FPS videos in Totem. Example videos which can clearly demonstrate the issue (if it reproduces) are attached. gst-play-1.0
and mpv
(waylandvk backend, no hw decoding) play both videos back fine with next to no jitter (only occasionally you see a jump). In Totem the 72-FPS video sometimes plays mostly-fine and sometimes has heavy jitter. The 144-FPS video always has heavy jitter.
Switching the monitor to 120 Hz and trying to play back 60 and 120-FPS videos also results in heavy jitter. Switching the monitor to 60 Hz and trying to play back the 60-FPS video results in mostly fine playback.
Fedora 31, totem 3.34.1-1.fc31, mutter 3.34.4-1.fc31, gnome-shell 3.34.4-1.fc31, Wayland session, AMD RX 580.