[FFmpeg-trac] #8456(undetermined:closed): Copy codec doubles video stream

FFmpeg trac at avcodec.org
Sun Jan 5 10:46:49 EET 2020

#8456: Copy codec doubles video stream
             Reporter:  MarianD      |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Changes (by Gyan):

 * status:  reopened => closed
 * resolution:   => invalid


 Replying to [comment:1 cehoyos]:
 > Both input and output file play for over 12 seconds here.

 Then the duration shown by ffmpeg for the input is wrong.

 To the OP, in the file header, the edit list for the track indicates that
 the stream should be repeated once.

 track[0].edit_count = 2
 duration=570000 time=0 rate=1.000000
 Last message repeated 1 times

 But the header appears to be malformed, since I am unable to dump the
 relevant boxes for the input due to an inconsistency in an earlier part of
 the header, which triggers an assertion failure.

 To ignore this editlist and get the expected length, use

 `ffmpeg -ignore_editlist 1 -i Bubble_burst.mp4 -c copy Bubble.mp4`

Ticket URL: <https://trac.ffmpeg.org/ticket/8456#comment:3>
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