[FFmpeg-trac] #5084(undetermined:new): How to achieve requirements for concat-filter?

[FFmpeg]

#5084: How to achieve requirements for concat-filter?
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             Reporter:  ruth         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by mulvya):

 Just to rule out the parameter mismatch as cause, run the final concat
 filter step with the same input i.e. join 299.mp4 with 299.mp4, and in
 another command, join the trailer with itself. You can try it without the
 setsar since both the inputs are known to be identical.

 Also, the concat method referred to in #4498 is the '''concat demuxer''';
 the [https://ffmpeg.org/ffmpeg-all.html#concat-2 concat protocol] is a
 different method.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5084#comment:1>
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