[FFmpeg-trac] #9726(undetermined:new): ffmpeg can not guess the file duration

[FFmpeg]

#9726: ffmpeg can not guess the file duration
-------------------------------------+-------------------------------------
             Reporter:  Smile Kisan  |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  4.2.4
  undetermined                       |
             Keywords:  m2v error    |               Blocked By:
  duration                           |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I am getting this error while tyring to guess the file duration of m2v
 file using command line interface. I am using the following sample file
 for testing:

 https://filesamples.com/samples/video/m2v/sample_960x400_ocean_with_audio.m2v

 How to reproduce:

 {{{
 ffmpeg -i testfile.m2v 2>&1
 }}}




 Error message:
 Duration: N/A
 [[Image(file:///home/smk/Pictures/Screenshot%20from%202022-04-13%2018-11-01.png)]]
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Ticket URL: <https://trac.ffmpeg.org/ticket/9726>
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