[FFmpeg-user] libx264 2 pass encoding...

John Doe jdmls at yahoo.com
Tue Oct 11 15:45:40 CEST 2011

From: Jonathan Tanant <jonathan at free.fr>

> Sorry, I don't know, I just got them "out from the box".
> FFmpeg 0.6, compiled from the sources on Aug 9 2010.

Found an svn comment from 2011-04-16:
"Remove now useless ffpresets for x264, use -preset"

So I replaced -vpre with -preset and tried the presets listed from x264:
 ultrafast superfast veryfast faster fast medium slow slower veryslow
But still get "constant rate-factor is incompatible with 2pass."


More information about the ffmpeg-user mailing list