[FFmpeg-devel] [PATCH] swscale/ppc: remove AltiVec acceleration for YUV->RGB conversions

[Andreas Rheinhardt]

Sean McGovern:
> Hi Andreas,
> 
> 
> On Fri, Nov 15, 2024, 14:34 Andreas Rheinhardt <
> andreas.rheinhardt at outlook.com> wrote:
> 
>> Sean McGovern:
>>> Even on a reasonably modern POWER9 (ppc64le), it does not function
>> correctly.
>>
>> IMO the commit message should contain a bit more information about what
>> doesn't function correctly.
>>
> 
> I don't feel like I have the cycle or the expertise to fix this myself. The
> failures are visible for 'checkasm-sw_rgb' on the PPC FATE nodes that run
> the test suite.
> 
> I do need for Debian to re-enable AltiVec & VSX in their packages. It was
> disabled wholesale a few months ago on the assertion that we haven't dealt
> with any of the test failures.
> 
> I doubt anyone else can/will step up to the plate any time soon. But fine,
> if this is a sticking point I think I will instead submit a patch to '#if
> 0' out the offending accelerations.

You seem to misunderstand me: I did not say that you need to fix this
yourself; merely that you should state what doesn't work (in this case:
checkasm-sw_rgb). That's all.

- Andreas