FFMPEG: Starting a 1-pass Encode with the mbtree and log stats of a 2-pass?

[skh]

hello,
when encoding in 2-pass with ffmpeg it always generates a mbtree and a log file.

I am curious if it is possible to skip the 1st pass and instead accessing the infos from mbtree / log which basically contains all the info which is needed for the second pass?

For example you do a 2-pass and have to cancel it during the 2nd pass or your computer shuts down during 2nd pass. The mbtree/log is already written so it would be kinda sensless to let it write the same thing all over again and instead you just let it read the files and do a 1-pass. Or after a while of encoding you get a feeling which algorithms fit which kind of video best. For example "lots of action", "medium action" "almost no action at all" and "no grain", "medium grain" and "a lot of grain" , cartoon/live action whatsoever. For each variant you would have a mbtree and would just use that and do 1pass instead of crf.

I googled a lot but couldnt find anything regarding that toppic. Maybe some of the ffmpeg specialists here would know?
thanks for reading
all the best
-skh

[ProWo]

If mbtree/log is already written then execute the commandline with

-pass 2

, should work.

https://superuser.com/questions/1362800/ffmpeg-2-pass-encoding
https://superuser.com/questions/1033000/h-264-multi-pass-encoding-with-ffmpeg