We'll create fresh WordPress site with Switch Video Quality installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Switch Video Quality adds a quality switch button to the native wordpress video player (mediaelement.js), that allows to choose between different resolutions (e.g., SD and HD) and/or formats (mp4, webm, ogv) of a self-hosted html5-compatible video. Additionally it provides an iframe embed code to let your viewers embed your video into their website (optional).