LifterLMS Advanced Videos can be used with Vimeo, Wistia, or YouTube.
LifterLMS allows you to embed videos on your course and lessons using WordPress’s default oEmbed capabilities. Video hosting providers include, but are not limited to YouTube and Vimeo. For an exhaustive list of oEmbed providers WordPress supports please see their documentation at https://codex.wordpress.org/Embeds.
LifterLMS also includes oEmbed support for Wistia.
If you want to host your own videos on Amazon, you can use a tool like S3 Media Maestro to serve up your Amazon hosted media in your LifterLMS site in a secure way.