Embedding video into Rise

Hi everyone,

I created a Rise presentation with 3 videos embedded/uploaded to Rise.  After playing it I see that it will pause the videos, spooling,  as the server may be too slow.  So I wanted to serve it up from PCloud and was able to embed as an iframe, but it autoplays the video now.  Does anyone know the script to have it start paused?

This is my iframe:

<iframe src="https://filedn.com/l57P4BDBIogyEC1pgf1YNnp/tai%20chi/class/mobile/first%20set.mp4" style=" position: absolute; left: 0px; top: 0px; width: 100%; height: 100%; "></iframe>

Thanks!