[FFmpeg-user] About ffmpeg transcode time

[David Favor]

miles chan wrote:
> hi all,
> 
> I wonder if there is a way to forecast the time is gonna cost in
> transcoding with the options that you going to use,i don't need to be very
> precisely,roughly is enough.

I do this on regular movie files by offsetting into the file
3 minutes + transcode 1 minute of video.

The 3 minute offset skips over the intro which tends to be filled
with completely empty frames + animations which transcode fast + if
you're using -vf mpdecimate, transcode at light speed.