validateCaptionConversion(warningHandler:)
Validates the object’s captions.
Declaration
func validateCaptionConversion(warningHandler handler: @escaping @Sendable (AVCaptionConversionWarning?) -> Void)Parameters
- handler:
The callback the system invokes when it finishes validation.
Discussion
When the object finishes validating and reports all warnings, it invokes the callback once with a value of nil for its warning parameter. When this occurs, the validator’s status value changes to AVCaptionConversionValidator.Status.completed.
Stop an in-progress validation operation by calling stopValidating().