Using FFMPEG to extract video loses sync between sound and vision
web at audiomisc.co.uk
Wed Feb 10 01:31:51 PST 2016
<PHEAIHCMJKHMHMOFBPOGAEOLCMAA.c.e.macfarlane at macfh.co.uk>, C
Macfarlane <c.e.macfarlane at macfh.co.uk> wrote:
> ... and trying to extract a section of this ...
> ... with the following command ...
> FFMPEG -i CuirmCeltic-2016-1.mp4 -acodec copy -vcodec copy -ss 1211.5
> -to 1465 Chieftains.mp4
> ... leads to a result where the sound is out of sync with the vision.
> Can anyone suggest a fix?
Two suggestions, but I don't know if they will fix it.
A newer version of ffmeg may help.
Convert the entire file to something like mkv first. Check that for lip
synch. Then snip that.
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html
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