I am sure it's difficult for someone to build and scale video infrastructure. A few companies are doing it for you; plug in the APIs, and you're done.

Gumlet (https://www.gumlet.com): Per-title encoding (Netflix's approach) to optimize and transcode your videos to boost engagement rates. Moreover, securing your videos is easy with digital rights management solutions paired with Widevine and Fairplay. Made for developers, by developers.

Mux: Developer-friendly video infrastructure for your on-demand & live video needs.

I love Gumlet because of their pricing and support.