[MPlayer-dev-eng] Re: [LONG] new results & bugs report

Romain Dolbeau dolbeau at irisa.fr
Tue Jun 15 10:37:37 CEST 2004


D Richard Felker III wrote:
> Umm, macroblocks are 16x16. Need I say more??

Yes (I suppose I'm a bit dumb, and I know I don't know much
about MPEG-4). I don't understand why it actually works if
the unit of work is 16x16. Or are macroblocks only an optional
part of the encoding ? In that case, I assume the bottom lines
would waste bits by not using them (no enough lines), or
alternatively the quality would be worse. But then, it is
of interest to compare the various encoding options in the
case were macroblocks cannot be used. We may not be able
to (sanely) extrapolate to the multiple-of-16 case, but
it still can be of interest. Maybe an academic interest
only, but then I belong to an academic institution ATM :-)

-- 
Romain Dolbeau




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