The popup feature for videos for Slide Anything PRO only support only YouTube & Vimeo embedded videos. The YouTube videos are not actually played full screen – see secreenshot:
https://i.imgur.com/cqJ0Ndm.jpg
When I created SA PRO, I added JavaScript code to pause the slider when the Video Popup opens. Generally its not a good idea these days to play videos stored locally with your site’s media library for the following reasons:
1) Performance – platforms like YouTube do a good job of upscaling/downscaling video playback depending on the visitors internet speed, so when you upload a video to YT, it will automatically create a 240p, 360p, 480p, 720p & 1080p versions and serve the version that visitor is capable of viewing
2) Device compatibility – different devices require different video formats, so some devices will view MPEF, others may require AVI or FLV, M4V etc – YouTube does a good job of sorting this all out for you as well
3) Space – the final frontier & my final point. Videos take up a ton of space within your site’s hosting.
Generally when my clients have tried self-hosted videos in the past, its been a bad idea, and video playback generally very slow with buffering etc.