Question / Help Recording different sources(desktop+webcam) at different fps

[Semel]

Hi there.

Is it possible to record two(or more) sources at different fps.

For instance.

1) Scene1: Recording webcam at 25 fps
2) Scene2: Recording desktop at 1 fps (presentation).

It would greatly conserve space and CPu resources.

I know I can set different fps for a browser source, but it's of no use to me.
Cheers.

 

[koala]

A video file has always the same fps for the whole frame. You cannot have a part with high fps and another part with low fps. This isn't a limitation of OBS, it's the property of each video container format.

If you have parts of the video that doesn't change much, make sure you use a quality based encoder rate control such as CQP, CRF or ICQ. Don't use CBR or VBR. In CQP, CRF or ICQ mode, only changes are encoded and take up disk space. If part of the video frame doesn't change, nothing is written to disk for that part. This isn't something you need to control by setting different fps. It's an integral part of the compression algorithm within the encoder.