[FFmpeg-cvslog] random thoughts about refactoring (was: Re: r20938 - trunk/libavcodec/h263.c)

[Ronald S. Bultje]

Hi,

On Jan 5, 2010, at 6:18 PM, M?ns Rullg?rd <mans at mansr.com> wrote:
> Carl Eugen Hoyos <cehoyos at ag.or.at> writes:
>> M?ns Rullg?rd <mans <at> mansr.com> writes:
>>>>> Also, our H.264 decoder is not a speed demon.
>>>>
>>>> I've read this claim before, but was never able to reproduce it
>>>> (on a single core cpu).
>>>
>>> CoreAVC is ~50% faster than lavc on ARMv7 (NEON).
>>
>> Sorry, I meant (and tested) 32bit x86 cpu.
>
> Well, whatever makes it faster on ARM should be applicable anywhere.
> The NEON asm is almost exactly the same.

If x86 speed is comparable but arm isn't, and it's not the asm, then  
likely they disable some steps (postprocessing / filters?) on arm.

Ronald