[FFmpeg-trac] #7651(undetermined:new): Corrupted start of mp4 file after "-ss 0 -to XXX -c copy"

[FFmpeg]

#7651: Corrupted start of mp4 file after "-ss 0 -to XXX -c copy"
-------------------------------------+-------------------------------------
             Reporter:  v0lt         |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 The beginning of the file is corrupted when copying data, even if "-ss 0"
 is specified. Any other value for "-ss" (indicating a keyframe, of course)
 can also give a problem.
 It looks like #7644, but this is a bug.

 How to reproduce:
 ffmpeg version N-92868-g51b356eef8
 I run the following commands.
 {{{
 ffplay "movie.mp4"
 ffmpeg -hide_banner -i "movie.mp4" -ss 0.000 -to 603.480 -c copy
 "movie.1.mp4"
 ffplay "movie.1.mp4"
 }}}
 "movie.mp4" plays without errors.
 "movie.1.mp4" play with an error at the beginning of the playback.
 {{{
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000459900] Could not find codec
 parameters for
  stream 0 (Video: h264 (avc1 / 0x31637661), none, 1280x720, 417 kb/s):
 unspecifi
 ed pixel format
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 }}}
 MPC-HC and MPC-BE players have a black screen at the start of playback.

 [https://cloud.mail.ru/public/4q5h/U6VYKV5Sr movie.mp4]

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Ticket URL: <https://trac.ffmpeg.org/ticket/7651>
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