AVFoundation · IOS API REFERENCE

AVVideoCompositionLayerInstruction

class · iOS 4.0+ · SDK 27.1

class AVVideoCompositionLayerInstruction

Members (8)

method · iOS 7.0+

getCropRectangleRamp

TypeScript

getCropRectangleRamp(time: _CoreMedia_CMTime, startCropRectangle?: ("animatableData" | SDKHandle) | null, endCropRectangle?: ("animatableData" | SDKHandle) | null, timeRange?: (SDKHandle) | null): boolean

Swift declaration

func getCropRectangleRamp(for time: CMTime, startCropRectangle: UnsafeMutablePointer<CGRect>?, endCropRectangle: UnsafeMutablePointer<CGRect>?, timeRange: UnsafeMutablePointer<CMTimeRange>?) -> Bool

method · iOS 4.0+

getOpacityRamp

TypeScript

getOpacityRamp(time: _CoreMedia_CMTime, startOpacity?: (SDKHandle) | null, endOpacity?: (SDKHandle) | null, timeRange?: (SDKHandle) | null): boolean

Swift declaration

func getOpacityRamp(for time: CMTime, startOpacity: UnsafeMutablePointer<Float>?, endOpacity: UnsafeMutablePointer<Float>?, timeRange: UnsafeMutablePointer<CMTimeRange>?) -> Bool

method · iOS 4.0+

getTransformRamp

TypeScript

getTransformRamp(time: _CoreMedia_CMTime, startTransform?: (SDKHandle) | null, endTransform?: (SDKHandle) | null, timeRange?: (SDKHandle) | null): boolean

Swift declaration

func getTransformRamp(for time: CMTime, start startTransform: UnsafeMutablePointer<CGAffineTransform>?, end endTransform: UnsafeMutablePointer<CGAffineTransform>?, timeRange: UnsafeMutablePointer<CMTimeRange>?) -> Bool

get · iOS 4.0+

trackID

TypeScript

get trackID(): number

Swift declaration

var trackID: CMPersistentTrackID { get }

method · iOS 26.0+

opacityRamp

TypeScript

opacityRamp(time: _CoreMedia_CMTime): (AVVideoCompositionLayerInstruction_OpacityRamp) | null

Swift declaration

func opacityRamp(at time: CMTime) -> AVVideoCompositionLayerInstruction.OpacityRamp?

Obtains the opacity ramp that includes a specified time.

init · iOS 26.0+

init

TypeScript

static init(configuration: AVVideoCompositionLayerInstruction_Configuration): AVVideoCompositionLayerInstruction

Swift declaration

convenience init(configuration: AVVideoCompositionLayerInstruction.Configuration)

Initialize an AVVideoCompositionLayerInstruction with a configuration. - Parameter configuration: contains the property values for a new AVVideoCompositionLayerInstruction.

method · iOS 26.0+

transformRamp

TypeScript

transformRamp(time: _CoreMedia_CMTime): (AVVideoCompositionLayerInstruction_TransformRamp) | null

Swift declaration

func transformRamp(at time: CMTime) -> AVVideoCompositionLayerInstruction.TransformRamp?

Obtains the transform ramp that includes a specified time.

method · iOS 26.0+

cropRectangleRamp

TypeScript

cropRectangleRamp(time: _CoreMedia_CMTime): (AVVideoCompositionLayerInstruction_CropRectangleRamp) | null

Swift declaration

func cropRectangleRamp(at time: CMTime) -> AVVideoCompositionLayerInstruction.CropRectangleRamp?

Obtains the crop rectangle ramp that includes the specified time.

Skipped declarations

1 declarations were excluded from these bindings. Each reason comes from the generator or the iOS SDK compiler.

AVVideoCompositionLayerInstruction.init()

inherited init: cannot prove legal (class declares 1 custom initializer)

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