[XviD-devel] Main Profile

[Christoph Lampert]

Hi guys,

the release of 1.0 seems to have exhausted everyone... it's really quiet 
in here. Anyway, let's try to discuss some goals for the future:

I myself a interested in the world of Sports transmissions, where (small
parts of) Main Profile would be useful, in particular Sprite and Object
encoding. E.g. for a soccer match, you then encode all of the playing
field only once, and after that only the tiny players have to move in
front of a scrolling, but not really changing background. 
So, the suggestion would be to add some main profile stuff to XviD, and 
create possible different versions of slightly more advanced encoders 
which do e.g. automatic segmentation into fore- and background. Is anyone 
with me on that? 

An alternative which I always found challanging is a specialization on 
Cartoon/Anime features. I don't know of any research on this topic so far, 
but it's clear that MPEG-4 is not and expert on encoding the typical big 
rather uniformly colored areas with thin black lines inbetween. The 
biggest problem is ringing, I guess. 
Again, segmentation might somewhat help, in combination wth adaptive 
quatnization, but also specialized pre- and postprocessing would be 
interesting to do. 

gruel