[FFmpeg-trac] #9052(undetermined:new): Concat frozen frames with audio

[FFmpeg]

#9052: Concat frozen frames with audio
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             Reporter:  tokejepsen   |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Cigaes):

 By default, ffmpeg will use AAC in MOV. Since AAC uses frames of 1024
 samples, your test files have 45056, not 44100, making them 1.02168
 seconds. The extra 0.02168, combined with the fact that the MOV muxer does
 not support variable frame rate, explains the extra frame.

 There are several ways of fixing this, depending on your use case. If you
 control your intermediate files, use a codec that does not add samples. If
 not, insert the trim filter to fix the duration before concatenation.

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Ticket URL: <https://trac.ffmpeg.org/ticket/9052#comment:1>
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