[MPlayer-dev-eng] Re: [Mplayer-cvslog] CVS: main/postproc swFri Fri Oct 19 17:33:03 2001

Michael Niedermayer michaelni at gmx.at
Fri Oct 19 17:55:02 CEST 2001


Hi

On Friday 19 October 2001 17:36, Arpi wrote:
> > On Friday 19 October 2001 16:44, Arpi wrote:
> > > done. dest buffer for postproc is 16x16 aligned. -> stride%16==0
> > > but the image size i pass to postprocess is still the real size. should
> > > i change it too? (seems to be ok now)
> >
> > if its very easy yes otherwise no (it shouldnt be a problem for the pp
> > code i think, only a few reads are not aligned correctly then)
>
> i don't understand this. why are reads unaligned?
> i think width/height values are only used to limit loops.
>
> stride is %16==0 (16, because UV stride is stride>>1 so it's %8==0 now)
>
> or do you mean the source image stride? it should be 16-aligned too as
yes i mean the source
> ffmpeg uses 16x16 blocks and +2*32 wide UMC area internally.
good, than it should be ok now, ... until win32 codecs get pp support :)

Michael



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