https://github.com/amzn/exoplayer-amazon-port This repository is Xamarin binding for port of the ExoPlayer project for Amazon devices.
Xamarin binding projects were borrowed from here https://github.com/Baseflow/ExoPlayerXamarin
Also see https://developer.amazon.com/docs/fire-tv/media-players.html#exoplayer
NuGet packages are available here https://www.nuget.org/packages/Xam.Plugins.Android.AmazonExoPlayerPort/