<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -",
    "macCatalyst: 26.0.0 -",
    "macOS: 15.4.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "VideoToolbox",
  "identifier" : "/documentation/VideoToolbox/VTMotionBlurParameters",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Video Toolbox"
    ],
    "preciseIdentifier" : "c:objc(cs)VTMotionBlurParameters"
  },
  "title" : "VTMotionBlurParameters"
}
-->

# VTMotionBlurParameters

This object contains both input and output parameters necessary to run the motion blur processor on a frame.

```
class VTMotionBlurParameters
```

## Overview

This object is used in the processWithParameters call of the VTFrameProcessor class. The output parameter is a destinationFrame where the output frame is returned as a VTFrameProcessorFrame back to the caller function once processWithParameters completes.

The parameters within VTMotionBlurParameters are frame level parameters.

## Topics

### Creating a parameters object

[`-  initWithSourceFrame:nextFrame:previousFrame:nextOpticalFlow:previousOpticalFlow:motionBlurStrength:submissionMode:destinationFrame:`](/documentation/VideoToolbox/VTMotionBlurParameters/init(sourceFrame:nextFrame:previousFrame:nextOpticalFlow:previousOpticalFlow:motionBlurStrength:submissionMode:destinationFrame:))

### Inspecting the parameters

[`sourceFrame`](/documentation/VideoToolbox/VTMotionBlurParameters/sourceFrame)

The current source frame.

[`destinationFrame`](/documentation/VideoToolbox/VTMotionBlurParameters/destinationFrame)

A user-allocated pixel buffer that receives the results.

[`nextFrame`](/documentation/VideoToolbox/VTMotionBlurParameters/nextFrame)

The next source frame in presentation time order.

[`previousFrame`](/documentation/VideoToolbox/VTMotionBlurParameters/previousFrame)

The previous source frame in presentation time order.

[`motionBlurStrength`](/documentation/VideoToolbox/VTMotionBlurParameters/motionBlurStrength)

A value that indicates the strength of blur to apply.

[`nextOpticalFlow`](/documentation/VideoToolbox/VTMotionBlurParameters/nextOpticalFlow)

Optional optical flow object that contains forward and backward optical flow with the next frame.

[`previousOpticalFlow`](/documentation/VideoToolbox/VTMotionBlurParameters/previousOpticalFlow)

Optional optical flow object that contains forward and backward optical flow with the previous frame.

[`submissionMode`](/documentation/VideoToolbox/VTMotionBlurParameters/submissionMode-swift.property)

A value describing the processing request in a parameters submission object.

[`SubmissionMode`](/documentation/VideoToolbox/VTMotionBlurParameters/SubmissionMode-swift.enum)

A value describing the processing request in a parameters submission object.

## Relationships

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

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

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

[`VTFrameProcessorParameters`](/documentation/VideoToolbox/VTFrameProcessorParameters)

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

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)