cropRectangleRamp(at:)
Obtains the crop rectangle ramp that includes the specified time.
Declaration
func cropRectangleRamp(at time: CMTime) -> AVVideoCompositionLayerInstruction.CropRectangleRamp?See Also
Getting opacity, transform, and cropping ramps
AVVideoCompositionLayerInstruction.CropRectangleRampgetCropRectangleRamp(for:startCropRectangle:endCropRectangle:timeRange:)opacityRamp(at:)AVVideoCompositionLayerInstruction.OpacityRampgetOpacityRamp(for:startOpacity:endOpacity:timeRange:)transformRamp(at:)AVVideoCompositionLayerInstruction.TransformRampgetTransformRamp(for:start:end:timeRange:)