[FFmpeg-trac] #2693(avfilter:new): -async chokes on damaged audio input stream

[FFmpeg]

#2693: -async chokes on damaged audio input stream
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             Reporter:  khali        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  regression   |               Blocked By:
  async                              |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by khali):

 Replying to [comment:5 cehoyos]:
 > Could you test the following command line? It works fine here for your
 sample with current git head and I would expect it to also work with older
 versions but I may miss something (and I can't test your exact options
 atm).
 > {{{$ ffmpeg -async 1 -i ffmpeg-trac-2693-part2.mpg -qscale 2 out.avi}}}

 Using -async 1 instead of -async 24000 solves both issues, yes. The
 warning flood is gone (which is no surprise, as I already stated in the
 original bug description that it only happened with async>1). And the
 audio in in sync, at least in this sample. I seem to recall that -async 1
 did not properly fix all my recordings but that was long ago, maybe it
 will work with ffmpeg 1.0.6 and later.

 Thanks for the suggestion, this will let me work around the issue for now.
 But the bug is still present.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2693#comment:7>
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