The current video scale and crop factor in use by the receiver.
- iOS 5.0+
- Mac Catalyst 13.0+
This property is only applicable to connections involving video.
You can set this property to a value in the range of 1.0 to the value of
video. At a factor of 1.0, the image is its original size. At a factor greater than 1.0, the image is scaled by the factor and center-cropped to its original dimensions.