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# init(frameWidth:frameHeight:usePrecomputedFlow:qualityPrioritization:revision:)

Creates a new motion blur configuration with specified flow width and height.

```
init?(frameWidth: Int, frameHeight: Int, usePrecomputedFlow: Bool, qualityPrioritization: VTMotionBlurConfiguration.QualityPrioritization, revision: VTMotionBlurConfiguration.Revision)
```

## Parameters

`frameWidth`

The width of the source frame in pixels. Maximum value is 8192 pixels for macOS, and 4096 pixels for iOS.

`frameHeight`

The height of the source frame in pixels. Maximum value is 4320 pixels for macOS, and 2160 pixels for iOS.

`usePrecomputedFlow`

If true it indicates that the optical flow will be provided by the user, if false this configuration will compute the optical flow on the fly.

`qualityPrioritization`

Instance to control quality and performance levels. See VEMotionBlurConfigurationQualityPrioritization for more information.

`revision`

The specific algorithm or configuration revision that is to be used to perform the request.

## Discussion

Initialization fails if the dimensions are out of range or revision is unsupported.

---

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