Lookahead functionality

[dhry]

Hi. Great program! Comparing it to other encoders such as Staxrip, NEAV1E and Handbrake. I've got a few parameters I commonly use for encoding and one of them is lookahead with SVT-AV1. I'm not sure that this is being passed properly in fastflix - I don't see an option in either the quality or advanced options tabs, and my lookahead additional parameter doesn't appear to work, at least it's not being reported in the console output.

aq-mode=2:film-grain=4:film-grain-denoise=1:enable-tf=1:mbr=4000:tune=0:enable-qm=1:lookahead=120

I read here that it's possible that ffmpeg doesn't support the option - https://www.reddit.com/r/AV1/comments/s7yyf9/help_me_understand_svtav1_parameters/

If not, is there a chance that you could incorporate the standalone svt-av1 encoder into Fastflix as an option rather than calling a library through ffmpeg?

Cheers
Dhry