[MPlayer-dev-eng] -vop scale

[Michael Niedermayer]

Hi

On Tuesday 16 July 2002 15:52, Arpi wrote:
[...]
> > for width & height has some advantages (better compression as mpeg uses
> > 16x16 blocks internally) but the aspect ratio will get messed up the more
> > rounding we do ...
> > 32 and larger are not usefull
>
> maybe add another 2 parameters to -vop scale, as w/h rounding value
>
> -vop scale 640:-2:16:16 would calculate w/h to be 16x16 mb boundary
hmm, we allready use the next 2 parameters for chroma skipping (so chroma is 
only calculated from every nth input line and the other is an additional 
parameter for the scaler (used for sharpnes of bicubic and gauss and filter 
length for lanczos) its in TFM iirc

perhaps a -4 & -5 as 2nd param for *16 stuff would be better

[...]

Michael