Class: AVAssetImageGenerator

Inherits:

NSObject

• Object
• NSObject
• AVAssetImageGenerator

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Overview

Instance Attribute Summary (collapse)

• - apertureMode

  Specifies the aperture mode for the generated image.

• - appliesPreferredTrackTransform

  Specifies whether to apply the track matrix (or matrices) when extracting an image from the asset.

• - asset readonly

  The instance of AVAsset with which the AVAssetImageGenerator was initialized.

• - maximumSize

  Specifies the maximum dimensions for generated image.

• - requestedTimeToleranceAfter

  The maximum length of time after a requested time for which an image may be generated.

• - requestedTimeToleranceBefore

  The maximum length of time before a requested time for which an image may be generated.

• - videoComposition

  The video composition to use when extracting images from assets with multiple video tracks.

Class Method Summary (collapse)

• + assetImageGeneratorWithAsset:

  Returns an image generator for use with a specified asset.

Instance Method Summary (collapse)

• - cancelAllCGImageGeneration

  Cancels all pending image generation requests.

• - copyCGImageAtTime:actualTime:error:

  Returns a CGImage for the asset at or near a specified time.

• - generateCGImagesAsynchronouslyForTimes:completionHandler:

  Creates a series of CGImage objects for an asset at or near specified times.

• - initWithAsset:

  Initializes an image generator for use with a specified asset.

Methods inherited from NSObject

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