FileTypes.cs will there be no performance issues?

[vvyoko]

https://github.com/mpvnet-player/mpv.net/blob/ace7566c2a788b186c3ac93800261b6d43869f8c/src/MpvNet/FileTypes.cs#L20

Do each file have to get an array from libmpv to judge again?

Shouldn't we cache one array after another? This value will not update during playback

Just like the previous version Then handling the new options like video-exts by ProcessProperty?

https://github.com/mpvnet-player/mpv.net/blob/ace7566c2a788b186c3ac93800261b6d43869f8c/src/MpvNet/App.cs#L130