[FFmpeg-trac] #5120(undetermined:new): Incorrect start frame when converting mpeg2video in .mov to mp4

FFmpeg trac at avcodec.org
Sun Jan 3 23:21:45 CET 2016


#5120: Incorrect start frame when converting mpeg2video in .mov to mp4
-------------------------------------+-------------------------------------
             Reporter:  sroy8        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  mov          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by sroy8):

 No, it would be fine for the output to have a duration of 1.2 seconds as
 long as the start time is around 0.5.  Then the output would show the same
 frames as the input and be the same length.  As it stands, if you play the
 two videos the output is both longer than the input, presumably by 0.5s,
 and it shows extra frames at the beginning that do not show up in the
 input.  Do you not see this effect?

 I'm playing the videos using Quicktime Player on a Mac.  Do other video
 players show something different, not respecting the start time of the
 video?

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Ticket URL: <https://trac.ffmpeg.org/ticket/5120#comment:5>
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