How to do autoplay embed youtube video in my site when reached visible port and then scroll stop video

Question

youtube video autoplay in visible port

Answer 1

Auto play:
https://stackoverflow.com/questions/15446045/how-to-set-auto-play-for-youtube-video
Scroll away:
https://stackoverflow.com/questions/25150423/how-can-i-pause-a-youtube-embed-when-a-user-scrolls-away

Answer 2

not work ....i want to just like this
http://playerjs.io/scroll.html