[DJATOM]

Originally Posted by ChaosKing

You could also use edi_rpow2.py https://gist.github.com/YamashitaRen...7524e794779d9c (or just copy the shifting code)

zimg way is most likely broken, I didn't checked.

PHP Code:

Y=core.std.ShufflePlanes(clips=clip, planes=0, colorfamily=vs.GRAY)
Y=core.resize.Spline36(clip=Y,width=clip.width,height=clip.height,src_left=hshift,src_top=-0.5) 


clip.width = Y.width, clip.height = Y.height, so resizer is just copying whole plane without doing the job. Another planes should be fixed if colorspace is not YUV444.