Instance Method

cancelAllCGImageGeneration()

Cancels all pending image generation requests.

Declaration

func cancelAllCGImageGeneration()

Discussion

This method calls the handler block with AVAssetImageGenerator.Result.cancelled for each image time in every previous invocation of generateCGImagesAsynchronously(forTimes:completionHandler:) for which images have not yet been supplied.

See Also

Generating Images

func copyCGImage(at: CMTime, actualTime: UnsafeMutablePointer<CMTime>?) -> CGImage

Returns an image for the asset at or near a specified time.

typealias AVAssetImageGeneratorCompletionHandler

A block that you use to receive thumbnail images generated from an asset.

enum AVAssetImageGenerator.Result

The statuses indicating the outcome of image generation.