[XviD-devel] Status of GMC

Michael Niedermayer xvid-devel@xvid.org
Sat, 2 Nov 2002 18:21:43 +0100


Hi

On Saturday 02 November 2002 18:00, Christoph Lampert wrote:
[...]
> > BTW you sure a specific optimization for borders (which might not even be
> > really black a lot of the time, given the constrained luma range of tv
> > signals) is really usefull? It is always better to crop after all.
>
> Yes, for encoding efficience of course it's better to crop. But there are
> situations where crop isn't possible for some reasons, e.g. hardware
> devices which need fixed aspect ratio or always scale to fullscreen.
> Or the black bars are intentional, e.g. mplayer only displays
> ASCII subtitles within the video frame. If there are black bars in the
> bottom, the subtitles do not cover the picture.
mplayer -vop expand=width:height

[...]

Michael