[FFmpeg-devel] [PATCH] Altivec versions of h264's weight/biweight functions

[David Conrad]

On Jan 5, 2009, at 6:49 PM, Guillaume POIRIER wrote:

> Hello,
>
> On Tue, Jan 6, 2009 at 12:29 AM, Jason Garrett-Glaser
> <darkshikari at gmail.com> wrote:
>> On Mon, Jan 5, 2009 at 6:25 PM, Guillaume POIRIER  
>> <poirierg at gmail.com> wrote:
>>> Hello,
>>>
>>> On Mon, Jan 5, 2009 at 10:20 PM, David Conrad <lessen42 at gmail.com>  
>>> wrote:
>>>> Hi,
>>>>
>>>> This also has sat on my HD for too long.
>>>
>>> Thanks for sharing!
>>>
>>> I applied only the biweight part since my video sample didn't use
>>> those new weight, and I wanted to make damn sure everything worked  
>>> as
>>> expected before committing anything.
>>>
>>> The remaining part of your patch that's left to be applied is in  
>>> attachment.
>>>
>>> Meanwhile, if someone wants to share a sample that uses "weight"
>>> functions, go right ahead. :)
>>
>> NeroAVC.mp4 on samples (vcodecs/h264).
>
> Thanks for the sample. The CRC differs after and before the patch.
>
> I used the command:
> ./ffmpeg -i ~/NeroAVC.mp4 -an -f framecrc - > /tmp/log
>
> Did I missuse FFmpeg, or is the new routine not bitexact?

It should be bitexact, I'll take a look at it.