[FFmpeg-trac] #11232(avformat:new): M4A metadata did not correct indicate VBR

[FFmpeg]

#11232: M4A metadata did not correct indicate VBR
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             Reporter:  Xafg        |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  minor       |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mov         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by MasterQuestionable):

 ͏    https://bugzilla.mozilla.org/show_bug.cgi?id=1892185#c1
 ͏    Try !`yt-dlp -F`.

 ͏    !YouTube primarily uses Opus.
 ͏    And mostly default tune for most content.

 ͏    See also:
 ͏    https://ffmpeg.org/ffmpeg-codecs.html#libopus-1
 ͏    https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio#Encoders
 ͏    https://trac.ffmpeg.org/ticket/10343

 ͏    ----

 ͏    Video is typically VP9.
 ͏    Fallback with H.264.

 ͏    Exact tune uncertain. But probably not much special.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11232#comment:7>
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