Question about Custom FFmpeg options

Burgi

New Member
Hi guys,

i'm having issues activating certain functions.
I tried for example "-me_method=umh" like i use "-trellis=2" and other. But the OBS Log says "option not available".
I read alot about Nvenc and h264, x264 etc. and found interesting options i would wanna try. But i can't find a list with the exact commands possible in this specific
field in OBS Studio. Some seem to work, some not. And some work with other values after the "=". Where can i find a list that works?^^
Thanks :)
Bild_2022-05-19_053331898.png
 

koala

Active Member
I don't know how it is in the options field of this specific encoder configuration (it's from the streamfx plugin), but if you were using custom encoder options from vanilla OBS, the format is option=value, not -option=value. In your case simply: coder=1 subq=9 trellis=2
 

Burgi

New Member
thanks for the answer but my options shown in that screenshot do work. the format is -option=value. i'm asking for more options :) i find alot of ffmpeg commands and h264 but just some do work, and values are not working correctly neither...
 

Harold

Active Member
your question is better directed to streamfx, as the encoder you selected is NOT built in to obs, but is instead provided by that plugin.
 

koala

Active Member
If you want the ffmpeg options for the ffmpeg nvenc encoder, consult the ffmpeg encoder documentation: https://www.ffmpeg.org/ffmpeg-codecs.html. However, it seems proprietary encoders are left out here.
If you downloaded the standalone ffmpeg package that comes with ffmpeg.exe, run: ffmpeg -h encoder=h264_nvenc to get all the h264_nvenc options. I found an output of this call here: https://gist.github.com/nico-lab/e1ba48c33bf2c7e1d9ffdd9c1b8d0493

Keep in mind nvenc is a hardware encoder and has much less fine tuning parameters than x264. You cannot micromanage nvenc the same way as x264.
 
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