[FFmpeg-user] Extract all keyframes

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Jun 30 11:44:43 CEST 2014

Moritz Barsnick <barsnick <at> gmx.net> writes:

> ffmpeg shouldn't be duplicating anything by itself.

If the input is vfr but the output format only 
support cfr, frames will have to be duplicated and 
this is the default behaviour (A/V sync would be 
impossible otherwise).

In any case, the complete, uncut console output 
will explain the issue.

Carl Eugen

More information about the ffmpeg-user mailing list