[XviD-devel] GMC ?

Dirk Knop xvid-devel@xvid.org
Wed, 07 Aug 2002 19:36:51 +0200


Hi,

Marc FD wrote:

> Is GMC implemented in XviD ??

Noope.

> (if not) Would GMC be implemented a day in XviD ?

I think so. But I've seen noone coding this stuff yet ;) since the 
effect is too small if I remember correctly.

> PS : just need a confirmation from a MPEG-4 "expert".
> Can Wavelet compression really be used instead of DCT ??
> i readed somewhere that MPEG-4 was using wavelets ??
> i think we were using f/i DCT. what's true ??

Wavelet can be used, but someone already wrote earlier that wavelets 
aren't in SIMPLE or ADVANCED SIMPLE mpeg4 profiles and thus it's of no 
use. I too would like to watch an encoding using  wavelet instead of 
DCT, just to see if it can keep up with what it promises ;) (or is DCT 
"non destructive" as well and can be lossless transformed, too? I just 
thought that I read something about that in an older c't...)

Best regards,
Koepi