How to integrate pre roll plugin from github videojs

Please i have link with code for pre roll ads and ads contrib this plugin give more power on user to manages Video to gets more money and more flexible user interface?!?!?!?!?!?!?!?!?!
Thats plugins is recommended to integrate in videojs module in Drupal CMS 7 and 8
https://github.com/dirkjanm/videojs-preroll ! Important
https://github.com/videojs/videojs-contrib-ads ! Important
https://github.com/lingtalfi/videojs-ad-markers ! Important
https://github.com/collab-project/videojs-record
https://github.com/videojs/videojs-contrib-quality-levels
https://github.com/manelpb/videojs-brand
https://github.com/jmccraw/videojs-socialShare
https://github.com/wulfsolter/videojs-endcapCTA
To all more freedom
With this plugins you give freedom to users from providers on content