[FFmpeg-trac] #4131(avfilter:new): aresample=async=1000:first_pts=0 produced out-of-sync audio with Non-monotonous DTS in output stream warnings

[FFmpeg]

#4131: aresample=async=1000:first_pts=0 produced out-of-sync audio with Non-
monotonous DTS in output stream warnings
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             Reporter:  mikaraento  |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by mikaraento):

 I'm building a generic, automated pipeline where many inputs do need
 aresample (and many would benefit from first_pts) - I don't know which
 ones before-hand.

 Also: this is cut from a larger file that most likely needs aresample; I
 just wanted to provide a reasonably minimal test case (the whole file is
 5G, and the full processing takes a couple of hours with 24 cores).

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Ticket URL: <https://trac.ffmpeg.org/ticket/4131#comment:3>
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