michaelni via ffmpeg-devel (HE12026-06-07):
> Subject: [PATCH 2/3] avfilter: add ff_slice_pos() helper for slice boundaries
> 
> Slice based filter workers compute their per-thread row/sample/channel
> boundaries as total * jobnr / nb_jobs. The total * jobnr product is
> evaluated in int and overflows signed int for large dimensions and many
> slice threads, before the division by nb_jobs brings it back in range.
> ---
>  libavfilter/filters.h | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

> Subject: [PATCH 3/3] avfilter: use ff_slice_pos() for per-slice boundary
>  computation
> 
> This is a behavior preserving change for all non-overflowing cases.
> 
> Signed-off-by: Michael Niedermayer <[email protected]>

Probably ok. I did not check all the changes in the third patch
individually, they look straightforward enough.

Regards,

-- 
  Nicolas George
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