[FFmpeg-devel] [PATCH] remove x86 optimizations for Snow

Jason Garrett-Glaser darkshikari
Mon Apr 13 22:03:21 CEST 2009

On Mon, Apr 13, 2009 at 5:31 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Mon, Apr 13, 2009 at 10:10:54AM +0200, Diego Biurrun wrote:
>> On Mon, Apr 13, 2009 at 02:05:32AM +0200, Michael Niedermayer wrote:
>> > On Mon, Apr 13, 2009 at 12:22:30AM +0200, Diego Biurrun wrote:
>> > > Here is a patch to remove x86 optimizations for Snow, similar to what I
>> > > just did for PPC.
>> >
>> > rejected
>> Why?
> Because this change does not simplify snow.
> And simplification is what should help people working on snow

Speaking of which, I was recently talking with one of the Dirac guys
and this idea struck me as very interesting and potentially applicable
to Snow:


It works with or without OBMC and can apparently dramatically reduce
residual at relatively low MV cost.  The primary downside is that, at
least as implemented above, it results in arbitrary-size motion
compensation partitions.

Dark Shikari

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