[FFmpeg-devel] Initial tickering at unifying ProRes encoder

Anton Khirnov anton at khirnov.net
Mon Dec 11 11:15:09 EET 2023


Quoting Clément Bœsch (2023-12-11 02:35:01)
> Hello there,
> 
> I'm currently investigating an issue¹ affecting Kostya ProRes encoder
> which is not reproducible with Anatoliy encoder (but it's too early to
> say if the bug is not present there as well given the differences in
> quantization, and it's also unclear if the issue is even actually
> there in the first place and not in M2/M3 firmwares).
> 
> Since these encoders share more than similiarities, I've been looking
> into their differences, and unifying their common codepaths was helpful
> to my investigation.
> 
> Attached is an initial patchset working out their differences by either
> sharing data or making code identical where relevant.

Do you have any comments on their respective strengths and weaknesses -
when would one want to prefer one over the other?

And how feasible would it be to reduce that to a single encoder?

-- 
Anton Khirnov


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