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# AVAssetImageGenerator.ApertureMode

Constants that define aperture modes to use when generating images.

```
struct ApertureMode
```

## Topics

### Aperture modes

[`static let cleanAperture: AVAssetImageGenerator.ApertureMode`](/documentation/AVFoundation/AVAssetImageGenerator/ApertureMode-swift.struct/cleanAperture)

A mode that applies both pixel aspect ratio and clean aperture.

[`static let encodedPixels: AVAssetImageGenerator.ApertureMode`](/documentation/AVFoundation/AVAssetImageGenerator/ApertureMode-swift.struct/encodedPixels)

A mode that applies neither pixel aspect ratio nor clean aperture.

[`static let productionAperture: AVAssetImageGenerator.ApertureMode`](/documentation/AVFoundation/AVAssetImageGenerator/ApertureMode-swift.struct/productionAperture)

A mode that applies only pixel aspect ratio.

### Initializers

[`init(rawValue: String)`](/documentation/AVFoundation/AVAssetImageGenerator/ApertureMode-swift.struct/init(rawValue:))

Creates an aperture mode with a string value.

## Relationships

### Conforms To

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Sendable`](/documentation/Swift/Sendable)

---

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