Stationary hero section while scrolling - need help

I am looking for help on one project, and just wondering if this is even possible.

I have a video background (100vh) set-up for the hero section, I want to add a scroll reveal animation for this section - when the user scrolls, the heading, and lines of text would appear one after another, the more scrolling is done the more lines appear ( total of 6 lines of text), after the user would finish scrolling on the hearo section to reveal all the text, the hero section would give way and the user can scroll further down the page below the hero section. Is this even possible?

Some answers and directions would be greatly appreciated.

please send help. I really wish to get this working