[FFmpeg-trac] #11577(ffmpeg:new): [Regression] Incorrect optional map parsing of metadata streams? (was: [Regression] Incorrect parsing of metadata stream specifiers with a question mark)

[FFmpeg]

#11577: [Regression] Incorrect optional map parsing of metadata streams?
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             Reporter:  Mive      |                    Owner:  (none)
                 Type:  defect    |                   Status:  new
             Priority:  normal    |                Component:  ffmpeg
              Version:  7.1       |               Resolution:
             Keywords:  cmdutils  |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  1         |
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Changes (by MasterQuestionable):

 * analyzed:  0 => 1
 * cc: MasterQuestionable (added)
 * summary:
     [Regression] Incorrect parsing of metadata stream specifiers with a
     question mark
     => [Regression] Incorrect optional map parsing of metadata streams?

Comment:

 ͏    Spec for reference:
 ͏    https://ffmpeg.org/ffmpeg.html#Advanced-options

 ͏    "stream_specifier_parse" ":"
 ͏
 https://github.com/FFmpeg/FFmpeg/blob/efa0c6252faa66ab90d0d5e60b0d4305474b7a8e/fftools/cmdutils.c#L1160

 ͏    The metadata name/value could contain literal "?", as well?
 ͏    https://trac.ffmpeg.org/ticket/11248#comment:2
 ͏
 https://github.com/FFmpeg/FFmpeg/commit/9e68b26765ca8396050f4b58d4b4fdc53943d35f
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Ticket URL: <https://trac.ffmpeg.org/ticket/11577#comment:2>
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