[FFmpeg-devel] [PATCH] zscale video filter performance optimization 4x

[Victoria Zhislina]

Paul, thanks a lot for reviewing. The answer is - yes, the move saves up to
30% of performance for a single thread execution, so it is necessary.
I wasn't aware of the cases where width/height can change between frames -
never seen them in real life, but right you are,  iI will change my code
accordingly - to make re-init if some change happened.
Thanks again!

On Fri, Feb 4, 2022 at 8:17 PM Paul B Mahol <onemda at gmail.com> wrote:

> Is moving all this code really needed?
>
> Note that width/height can change between frames so that is supported
> by scale filter.
> With your change that is not more possible?
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