[FFmpeg-trac] #5998(avcodec:open): ffmpeg 3.1.0 and later fails converting some MKVs with "sample_fmt" error

[FFmpeg]

#5998: ffmpeg 3.1.0 and later fails converting some MKVs with "sample_fmt" error
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             Reporter:  julian       |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  dca          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by heleppkes):

 The file doesn't have any audio for several seconds, the console output
 does tell you what to do to fix it - increase analyzeduration.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5998#comment:9>
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