[XviD-devel] PATCH: Per slices rendering

Alban Bedel xvid-devel@xvid.org
Mon, 8 Jul 2002 01:06:06 +0200


Hi peter ross,

on Mon, 08 Jul 2002 08:26:55 +1000 you wrote:

> hey all,
> 
> how about adding a 'dirty' field for each macroblock, which is set if the 
> macroblock has changed? then at the image_output stage, perform some 
> macroblock checking and call slice_copy.

I don't think that it's a good idea as in this case you'r going to read from the RAM
while when doing it during the decoding you have chance to get it from the cache.

> out of curiosity, have you tried rending at the macroblock/block level?

I tried but it did't seem to make much difference. It migth be very CPU dependant,
more try would be better. For the *nix user who want i can send the needed patch
for mplayer.

> btw, iam quite pleased to here xvid's decoder is fast.

Me too :)

	Albeu