mpv-player
Any way to undo scaling that is encoded into the video? debilinear & debicubic
I want to undo bilinear upscaling that has been encoded into a video.
De-bilinear down to 1280x720 and then let scale=spline36 do the rest.
Would be useful for older animes.
Something like this is what I'm talking about.
mpv supports vapoursynth as a filter Or you can write a shader, which can be easier to configure and more performant.
vf=scale=w=1280:h=720:flags=bilinear
that's not descaling or debilinear but just scaling down. it doesn't use the inverse kernel.
Old but mpv is not really the right tool for this. I guess you could theoretically use a shader or a vapoursynth filter, but I would suggest not involving mpv at all for this.
