[FFmpeg-devel] [PATCH] up VOFW in swscale?

Måns Rullgård mans
Thu Apr 2 21:16:31 CEST 2009

Andreas ?man <andreas at lonelycoder.com> writes:

> Michael Niedermayer wrote:
>> On Wed, Apr 01, 2009 at 11:59:46PM +0200, Andreas ?man wrote:
>>> Michael Niedermayer wrote:
>>>> On Wed, Apr 01, 2009 at 09:28:46PM +0200, Andreas ?man wrote:
>>>>> Hi
>>>>> I use the scaler to rescale photos (>2048 pixels wide) in my
>>>>> application.
>>>>> With the old scaler this was not a problem but nowadays it
>>>>> no longer works since the maximum width is limited to 2048 pix.
>>>>> Therefore I propose we up this to 4096.
>>>> can post some benchmarks with a CPU with small cache and a low resolution
>>>> video?
>>> Interesting exercise. Seems that increasing it to 4096 causes more
>>> cache aliasing. However, increasing it to 5120 makes it faster than
>>> the original code.
>> looks  good so far but i still would like to see benchmarks from one
>> or 2
>> other cpus, at least one (non P4) intel
> This is on a:
> Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
> I wouldn't say it's much of a difference on that one.
> I don't have access to any non-x86 platforms of significance.

You can have a login on my ppc if you like.

M?ns Rullg?rd
mans at mansr.com

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