Would be helpful to gets some notes on the lifecycle of MediaPlayerSurface

[JohnnyWestlake]

We can call GetSurface on a MediaPlayer to get a composition surface, but there's no notes on it's lifecycle or how to handle it. Does it dispose itself? Should we dispose it? Is it attached to the player as a whole? Or only valid when the player actually has visual output (i.e, disposes itself when Player.Source is null?)

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Document Details

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• ID: 7d5f6e40-85e2-8509-3d8e-655ce275733f
• Version Independent ID: abc38dea-1910-26eb-c989-315223a4025c
• Content: Play audio and video with MediaPlayer - UWP app developer
• Content Source: windows-apps-src/audio-video-camera/play-audio-and-video-with-mediaplayer.md
• Service: unspecified
• Product: windows
• GitHub Login: @drewbatgit
• Microsoft Alias: drewbat