[FFmpeg-user] difference between filter_complex and vf

Nicolas George nicolas.george at normalesup.org
Fri Jun 1 16:00:56 CEST 2012

Le quartidi 14 prairial, an CCXX, Atli Thorbjornsson a écrit :
> Hi I'm trying to combined 2 files via overlay for video and amix for audio.

Do not use amix, it is misdesigned. Use amerge and pan instead.

> But I never get the filtergraph to work when I use -vf (even if I leave out
> the -af part)
> I always get this error:

-vf works with a single input and a single output. What you want to do
requires the -filter_complex option.


  Nicolas George

More information about the ffmpeg-user mailing list