install ffmpeg in windows code example

Example 1: ffmpeg not installed

# UBUNTU

sudo add-apt-repository ppa:mc3man/trusty-media  
sudo apt-get update  
sudo apt-get install ffmpeg  
sudo apt-get install frei0r-plugins

Example 2: install ffmpeg mac

There are three options, sorted by complexity:

Homebrew (or other package managers)
Static builds
Compile yourself
To follow this you need to have a bit of knowledge using a terminal/shell under macOS.