[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