Create a round circular video player?

[Zaniyar]

How could I create a round video player?

<VideoPlayer:Video height="100%" cornerRadius="100" style="border-width:1;border-radius:100;" src="{{source}}" loaded="videoplayerLoaded" finished="videoFinished" autoplay="true" />

tried with cornerRadius="100" style="border-width:1;border-radius:100;" get an exception.