This may be a long one, but I want to clarify.
They want a way to change between using a video in the media library and a youtube video, maybe a radio button or toggle within the header option of Video to ask for Library or YouTube.
The video should autoplay regardless if it is from the Media Library or Youtube. Also, if it is YouTube, can you remove the end part where it shows the suggested videos.
In conclusion, they want the option of both media library and youtube videos, and for them to autoplay (without sound) and if youtube, remove the suggested videos/ads at the end and have it looped.
If so, I'd like to quote them for the additional time for this feature. Do we have a more definitive quote?
I know here there is documentation for looping a video: https://developers.google.com/youtube/player_parameters
This may be a simple text replacement for the iframe URL, it may require an expensive software encoder, or it may fall somewhere between. I won't know until I work with this more.
I can tweak this to include a YouTube Playlist and/or allow for hosted videos. Let me know how you'd like me to proceed.
https://stlawrence.org/youtube-hero/
Cody, does this do everyting they're wanting?