Opened 17 months ago
Last modified 17 months ago
#9597 new defect
Missing frames with -stream_loop and -f concat
|Reported by:||bogus||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
Description (last modified by )
Summary of the bug:
I'm creating a looped slideshow video out of jpeg images. The resulting video is missing the first image/frame in all repeated sections.
How to reproduce:
% ffmpeg -stream_loop 3 -r 1 -f concat -i list.txt out.mp4 ffmpeg version 4.4.1 built with gcc 11.2.0 (Rev1, Built by MSYS2 project)
For example, having list.txt like this:
file 'A.jpg' file 'B.jpg' file 'C.jpg'
The resulting video contains the following frames : ABC BC BC BC.
It's length is 3+(3-1)*3 = 9 frames, while it should be 3*4 = 12 frames.
See the attached archive.
Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.
Change History (3)
by , 17 months ago
comment:1 by , 17 months ago
comment:2 by , 17 months ago
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