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# AVCaptionConversionValidator

An object that validates captions for a conversion operation.

```
class AVCaptionConversionValidator
```

## Topics

### Creating a validator

[`init(captions:timeRange:conversionSettings:)`](/documentation/AVFoundation/AVCaptionConversionValidator/init(captions:timeRange:conversionSettings:))

Creates an object that validates captions for a conversion operation.

[`captionConversionValidatorWithCaptions:timeRange:conversionSettings:`](/documentation/AVFoundation/AVCaptionConversionValidator/captionConversionValidatorWithCaptions:timeRange:conversionSettings:)

A convenience initializer to create an object that validates captions for a conversion operation.

### Inspecting the validator

[`captions`](/documentation/AVFoundation/AVCaptionConversionValidator/captions)

The array of captions that the system validates.

[`timeRange`](/documentation/AVFoundation/AVCaptionConversionValidator/timeRange)

The time range of the media timeline in which the captions must exist.

### Validating captions

[`validateCaptionConversion(warningHandler:)`](/documentation/AVFoundation/AVCaptionConversionValidator/validateCaptionConversion(warningHandler:))

Validates the object’s captions.

[`warnings`](/documentation/AVFoundation/AVCaptionConversionValidator/warnings)

The collection of warnings the validator encountered.

[`AVCaptionConversionWarning`](/documentation/AVFoundation/AVCaptionConversionWarning)

An object that represents a conversion warning produced by a validator.

[`stopValidating()`](/documentation/AVFoundation/AVCaptionConversionValidator/stopValidating())

Stops the active validation operation.

### Checking the status

[`status`](/documentation/AVFoundation/AVCaptionConversionValidator/status-swift.property)

A value that indicates the status of validation.

[`AVCaptionConversionValidator.Status`](/documentation/AVFoundation/AVCaptionConversionValidator/Status-swift.enum)

Constants that indicate the status of a validator.


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