Function obs_encoder_add_roi

pub unsafe extern "C" fn obs_encoder_add_roi(
    encoder: *mut obs_encoder_t,
    roi: *const obs_encoder_roi,
) -> bool

Adds region of interest (ROI) for an encoder. This allows prioritizing quality of regions of the frame. If regions overlap, regions added earlier take precedence.

Returns false if the encoder does not support ROI or region is invalid.