[FFmpeg-trac] #10255(avcodec:new): prores_ks encoder on Mac with M2 creates flickering

[FFmpeg]

#10255: prores_ks encoder on Mac with M2 creates flickering
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             Reporter:  jonnyburger  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by jonnyburger):

 I agree with Thomas and the original bug report is unprecise.

 The encoding is the same on both M1 and M2, but the playback on M2 is
 wrong.

 To complete the reproduction: Take the reproduction from the first post,
 and play the video with QuickTime on macOS on M2.

 To answer your question:
 - decoding on macOS does not work correctly when the video is encoded with
 FFmpeg
 - the QuickTime player is used for decoding
 - It is not clear yet whether the fault is in the encoder or decoder
 - The decoding works correctly on M1 arch, but not on M2 arch
 - The encoding is presumably the same on both platforms, since it is
 software encoding.

 My company remotion.dev is paying out a $500 bounty for the developer who
 can submit a patch!

 This fix has value to us because it would allow users to export
 transparent videos and drag them into other video editing programs.

 The bounty can be claimed by emailing jonny at remotion.dev.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10255#comment:5>
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