Python OpenCV Video with Pygame

Because my code gist has a lot of comments and questions.

Here is one repository with env for reference.

Create a virtual env, activate and install requirements

python -m venv venv 
source venv/bin/activate
pip install -r requirements.txt

Pygame on OSX

Using brew to install Pygame dependecies

brew install sdl2 sdl2_gfx sdl2_image sdl2_mixer sdl2_net sdl2_ttf

ref