[FFmpeg-trac] #8035(undetermined:closed): Issue with audio channel mapping

[FFmpeg]

#8035: Issue with audio channel mapping
-------------------------------------+-------------------------------------
             Reporter:  svihalekjan  |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
  filter_complex amerge audio        |
  channel mapping                    |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Cigaes):

 You are right, {{{-af}}} could not work because the two input channels
 come from different streams. {{{-af}}} only works with a single stream
 input and output, and in that case, the argument for {{{-map}}} is just
 the selector for that stream.

 On the other hand, I would still like to understand why the result of your
 original command changed between 4.0 and the current version. Your
 original command *should* work, and if it does not, it may really be a
 bug.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8035#comment:8>
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