[FFmpeg-user] Another user with problems extracting a subsection of video

Jim Worrall coniophora at gmail.com
Sun Jan 29 01:53:24 CET 2012

On Jan 25, 2012, at 7:27 PM, Deron wrote:

> I have a video I wish to clip out using -ss and -t to set the start and length to be extracted. My problem is that the audio is terribly out of sync in the resulting file. Instead of using -vcodec copy -acodec copy, should I be (re)encoding it ?? Any other possible suggestions? I don't want to loose quality by reencoding if possible. Anyway, here is the command and output. Suggestions/work arounds most welcome. Thanks!
> Deron
> ffmpeg -i "original.wmv" -vcodec copy -acodec copy -ss 2572 -t 10 -y "clip.wmv"

I don't know, but you might try putting the -ss and -t before the -i.  That sometimes helps I think.

More information about the ffmpeg-user mailing list