[FFmpeg-devel] [PATCH] Make VP3/Theora Decoder Much Faster

Jason Garrett-Glaser darkshikari
Sat Dec 5 22:37:50 CET 2009


On Wed, Dec 2, 2009 at 9:40 PM, Mike Melanson <mike at multimedia.cx> wrote:
> Jason Garrett-Glaser wrote:
>>
>> Another optimization patch attached. ?Should be pretty obvious what it
>> does.
>
> I'm glad you think so.
>
>> Also, a few optimization targets for Mike:
>
> Thanks for the clues. I always enjoy a good puzzle.
>
>> I can think of more, but I'm lazy. ?Also, here's a profile with
>> -fno-inline-functions and -fno-inline-functions-called-once, on a Core
>> i7 (from before my changes, but after Mike's):
>
> Thanks for this. I had a feeling that a lot of functions were being inlined
> into vp3_decode_frame() since it didn't look like it could be taking 23% of
> the decode time on its own.
>
> --
> ? ?-Mike Melanson
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Patch approval/comments?  I'd like to *commit* my speed optimizations
if possible ;)

Dark Shikari



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