[FFmpeg-trac] #7739(documentation:new): Explain stream specifier usage for codec and other global options

[FFmpeg]

#7739: Explain stream specifier usage for codec and other global options
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             Reporter:  UlfZibis     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  documentation                      |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:
 At https://www.ffmpeg.org/ffmpeg-codecs.html#Codec-Options there is no
 hint that options should be postfixed by a stream specifier in case of
 ambiguity. An example would be helpful too.
 At https://www.ffmpeg.org/ffmpeg.html#AVOptions the given example doesn't
 reflect the statement: "... a stream specifier should be attached ...", so
 "... in case of ambiguity" should be amended.
 For https://ffmpeg.org/ffmpeg-formats.html#Format-Options the same
 applies.
 How to reproduce:
 {{{
 % ffmpeg -i input -level:a 5 output # avoid ambiguity with video codec
 level
 ffmpeg version: current
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7739>
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