Preloader on pageload /finished with background video possible?

Hi! I have a background video on my homepage. To avoid stutter until it starts streaming, I wanted to set a preloader before. Normally I do this with pageload (finished loading). But with the background video it waits now until the full video is loaded. Normally it starts streaming and showing before it’s fully loaded.

So is there a way that the preloader finishes when the video starts playing/streaming (not fully loading)?


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

have found any solution?