Offer 20$ Make Custom Video Player Extension

Extensions Extension Development
2

With this extension here you can create half of what you want.

[Hot Fix] V 2.0.5 Plyr Video Player | Fullscreen, Qualities, Captions, Thumbnail, Attaractive UI - Extensions - Kodular Community

With this one you can do to increase and decrease the volume and brightness
[FREE] BrightnessTools - Set brightness of your phone - Extensions - Kodular Community

Now it’s all a matter of logic, a cup of coffee to relax, and a lot of patience to get exactly what you want.