#9601: Optional stream mapping fallback
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             Reporter:  eygraber     |                     Type:
                                     |  enhancement
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 I have a script that runs ffmpeg automatically, and uses
 0:a:m:language:eng to grab all English language audio streams.

 However, some of the files don't have English language audio streams,
 which causes ffmpeg to fail.

 I can use 0:a:m:language:eng? but then there would be no audio.

 What I'd like to be able to do is specify a fallback to be used if the
 optional mapping isn't present, e.g. if there are no English audio
 streams, map the first audio stream instead.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9601>
FFmpeg <https://ffmpeg.org>
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