To prevent confusing this effect with actual dropped frames, it could help to try and look at a fixed point on the screen instead (such as your mouse cursor). Note that if you're tracking the bars with your eyes, due to small movements in the eyes, it's possible for the movement speed to appear to change - almost as if the bars got “stuck” and jolted forwards again. If it's working correctly, there should be no visible (horizontal) tearing, discontinuities, stuttering or other forms of negative artifacts. A good test clip for that is this file: 60.000.mkv For a general primer on the theoretical background of the techniques demonstrated here, see this article on the mpv wiki IMPORTANT!īefore viewing any of these files, confirm that you get frame-perfect 60 fps playback. This repo contains the results of my simulations, alongside some explanations.
Frustrated by a lack of a clear way to communicate the intended effects of mpv's interpolation, as well as a lack of good ways to figure out if it's working correctly or not, I decided to create 60 fps “simulated interpolation” clips to demonstrate the effects.