[theora-dev] ffmpeg2theora aspect ratio

[ogg.k.ogg.k at googlemail.com]

> i had some footage where this was used.
> but i think it should be take out, will review it and take it out if i
> can not find a good reason for it to be there...

Playback speed maybe ? A slight non uniform scaling could be a lot
slower on playback, so ignoring it would not look substantially
different while displaying faster.