[FFmpeg-trac] #9337(ffmpeg:new): 'atempo' didn't work unless '-map 0' was added

[FFmpeg]

#9337: 'atempo' didn't work unless '-map 0' was added
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             Reporter:  markfilipak  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  ffmpeg
              Version:  git-master   |               Resolution:
             Keywords:  atempo       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Gyan):

 `-map 0 -map "[v]" -map "[a]"` will first include the source (unmodified)
 tracks and then the filtered tracks. Check the stream mapping in the log
 of 3.cmd
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Ticket URL: <https://trac.ffmpeg.org/ticket/9337#comment:2>
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