Extrcting features with opencv about opensmile HOT 2 OPEN

(ERR) [1] cComponentManager: cannot add component (instname='openCVSource' type='cOpenCVSource'): unknown component type!!

This indicates that openSMILE was not built with OpenCV. The pre-built binaries made available via GitHub do not include OpenCV, you will have to build it yourself. See https://audeering.github.io/opensmile/get-started.html#compiling-on-linux-mac-with-portaudio-and-opencv-support and https://audeering.github.io/opensmile/get-started.html#compiling-on-windows-with-portaudio-and-opencv-support in the documentation.

from opensmile.

Do I need to externally download some models ?

openSMILE does not come with any models for audio-visual analysis and it is also not possible to run models as part of openSMILE. You can only use openSMILE to extract features. Note that visual feature extraction in openSMILE is extremely limited, as the focus for openSMILE has always been on audio feature extraction.

from opensmile.