[FFmpeg-user] join two video files portions

frank10 aruForum10 at deveritate.net
Sat Feb 2 10:18:19 CET 2013

Il 02/02/2013 10:06, Carl Eugen Hoyos ha scritto:
> There is a concat demuxer that should allow this
> combined with -ss
I looked at the -ss option, but it seems to work with a start position 
while I need to count from the end of the video
and I don't know its duration.

> I don't think this is possible (in one step).

It's ok also in more steps.
It could be:
1) determine actual duration of video file
2) subtract 5sec from it and use it as a start position for -ss

If needed I could use a c++ prog for it.


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