[FFmpeg-trac] #7384(avcodec:reopened): FFmpeg 4.0 does not set 5.1 surround sound into audio stream when converting mkv video with 5.1 surround sound

[FFmpeg]

#7384: FFmpeg 4.0 does not set 5.1 surround sound into audio stream when
converting mkv video with 5.1 surround sound
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             Reporter:  itrdev       |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 Replying to [comment:3 Rostislav Pehlivanov]:
 > The issue is that the file signals a layout of 5.1(side), but the AAC
 spec only supports 5.1(rear channels instead of side).

 Yes, but looks like 7.1 does support side? See
 https://git.1f0.de/gitweb/?p=ffmpeg.git;a=commit;h=71d762aaa1d96c1a6c4cc83b5a0c418b53028efe;js=1
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Ticket URL: <https://trac.ffmpeg.org/ticket/7384#comment:13>
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