[FFmpeg-trac] #9996(ffmpeg:open): Write joc_complexity_index to dec3 (EAC3SpecificBox), Windows and Android need it to play atmos

FFmpeg trac at avcodec.org
Tue Jun 3 06:22:22 EEST 2025


#9996: Write joc_complexity_index to dec3 (EAC3SpecificBox), Windows and Android
need it to play atmos
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             Reporter:  BlueWindy   |                    Owner:  (none)
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by CosmicSkye):

 I'm looking into a patch for this for myself. I don't have enough dev
 experience to write an official patch.

 As far as I know, this affects Atmos on iOS as well and causes MediaInfo
 to not show it as an Atmos track either.

 mkv isn't an option, since AVPlayer (the only way to play Atmos on iOS)
 doesn't support mkv.

 Upvoted this ticket.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9996#comment:14>
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