Onvif and ffmpeg requirements

Onvif

It requires

Blockquote
If running Home Asssistant Core in a venv, ensure that libxml2 and libxslt python interfaces are installed via your package manager.

How this affects me if I have it running on docker? is that package already included in the docker? do I have to install it in the host OS where my docker is?

The same question for FFMPEG