How to use a video player so that the file cannot be downloaded?

Question

JavaScript

Please tell me an example for the server and for the browser, how to create a video preview protected from downloading for copyright protection?
As I understand it - you need to write both on the server and on the client, what would be encrypted buffering and downloading in fragments?
Screenshot and screen recording do not count. Of course, those who really want to download, but I want to complicate the process in order to weed out the first echelon who want to download.

Answer 1

Whoever wants to, either downloads fragments or makes a screen recording, on which, despite all your tricks, ready-made content will still be collected.

Answer 2

Look in the direction of DRM . But as d-sem correctly noted , you can simply record the screen.
Why not share the video on youtube? I don't know if they allow you to use drm, but there is paid content there. After all, if the video is stolen and distributed, then there, and you can challenge the copyright through the support service.
Do you have such valuable content?

Answer 3

https://playernow.ru/?player-type=vod-drm&mp4-src=...
Look here, maybe something can be farmed