AVMutableVideoCompositionLayerInstruction

https://developer.apple.com/documentation/avfoundation/avmutablevideocompositionlayerinstruction

An object used to modify the transform, cropping, and opacity ramps applied to a given track in a mutable composition.

수정 가능한 컴포지션의 주어진 트랙에 적용된 변형, 크롭, 불투명도 램프를 수정하는 데 사용되는 객체입니다.

Declaration

class AVMutableVideoCompositionLayerInstruction : AVVideoCompositionLayerInstruction