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

FFmpeg trac at avcodec.org
Wed Jan 2 15:05:07 EET 2019


#7651: Corrupted start of mp4 file after "-ss 0 -to XXX -c copy"
-------------------------------------+-------------------------------------
             Reporter:  v0lt         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by v0lt):

 Here is an example with a non-zero keyed keyframe.
 {{{
 ffmpeg -i "movie.mp4" -ss 603.480 -to 1207.840 -c copy "movie.2.mp4"
 ffplay "movie.2.mp4"
 }}}
 I also noticed that frame 603.480 is in both files (movie.1.mp4 and
 movie.2.mp4), although the previous frame with time 603.440 is a P-frame.
 IMHO, it should be the last frame for the movie.1.mp4. I moved the range
 to "-ss 0.000 -to 603.470", but it did not change anything.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7651#comment:1>
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