Which is avisynth equivaleent to

[sebus]

TMPGEnc Full Screen (Keep Aspect Ratio)

Thanks

sebus

[mf]

blah = last

## change this to your liking, anything below mod4 will give errors on YUV material
mod = 16
## /

width43 = Round(Round(blah.height*1.33333)/mod)*mod
halfwidth = width43/2
blah.Crop(halfwidth, 0, -halfwidth, -0)

Haven't tried it, but it should work.