Lively Wallpaper Metro is Poweful and Simple application for setting dynamic desktop wallpaper. And it is modified from Lively Wallpaper which is free and open source under license GPLv3. Getting our source code from here or winappcenter/lively-metro: lively wallpaper for desktop (github.com).

The Official website:
Lively Wallpaper by rocksdanister
Wallpaper playback pauses when fullscreen application/games are run (~0% resource usage.). Use dynamic & interactive webpages, 3D applications, audio visualisers as wallpapers. User experience focused, Just drop videos & webpages into lively window to set as wallpaper. Stream wallpapers, Automatic tile generation, Multiple video players, Performance settings and more...