[FFmpeg-trac] #10863(avfilter:new): Bug with arnndn filter

[FFmpeg]

#10863: Bug with arnndn filter
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             Reporter:  Voodoo    |                     Type:  defect
               Status:  new       |                 Priority:  important
            Component:  avfilter  |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 Summary of the bug:
 If audio input is stereo [more channels not tested] then results from
 arnndn filter can be wrong on some CPUs.

 No bug on these CPUs: i5-2500M and i7-13700K
 Bug reproduced on these CPUs: i7-8700K and Ryzen 5 5500.

 How to reproduce:
 {{{
 ffmpeg.exe -i in-stereo.wav -filter_complex [0:a]arnndn=m=sh.rnnn[s0] -map
 [s0] out.wav
 }}}

 No bug on mono audios.
 And no bug if threads=1 -> "arnndn=m=sh.rnnn:threads=1"

 Relevant link: https://forum.doom9.org/showthread.php?t=185306
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Ticket URL: <https://trac.ffmpeg.org/ticket/10863>
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