[FFmpeg-user] -preset veryfast produces smallest file, weird

Reindl Harald h.reindl at thelounge.net
Sun Oct 15 16:43:54 EEST 2023

Am 15.10.23 um 15:12 schrieb Ulf Zibis:
> by accident I transcoded a video with -preset veryfast (it took 1 h).
> So I had to run it again with -preset veryslow (it took 12 h).
> Now I'm wondering about the file sizes. How can that be?

why not?

if you prefer fast you don't care about quality

in doubt quality needs space and find a compromise between size and 
space - you can't have both - and well, depending on the source material 
fast can be small and good enough in quality

More information about the ffmpeg-user mailing list