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copyCGImage(at:actualTime:)

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

Declaration

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

Parameters

  • requestedTime:

    A time within the asset timeline for which to create an image.

  • actualTime:

    Upon return, contains the time at which the image was actually generated.

    If you’re not interested in this information, pass NULL.

Return Value

A CGImage for the asset at or near a specified time, or NULL if the image could not be created.

Discussion

This method returns the image synchronously.

See Also

Generating images