i'm wondering what is the visually highest quality way to scale an incoming video from 1920x1080 to 1280x720 px (at about 25fps).
as far as i know (and from what i see) jit.qt.grab and matrix to matrix conversion only use linear scaling which results in a rather bad quality, even if interpolation is switched on.
in my search i stumbled as well over jit.resamp, jit.mxform2d and jit.rota and i wonder: would any of these perform better (with what setting)?
last remark: in this case i would prefer this to happen on the cpu (not gpu) since after scaling down i am writing the video to a harddrive so in case of gpu-resampling i'd need to readback...
any help is appreciated a lot!