---
title: sourcePixelBufferAttributes
framework: Video Toolbox
role: symbol
role_heading: Instance Property
platforms: [iOS 26.0+, iPadOS 26.0+, Mac Catalyst 26.0+, macOS 26.0+, tvOS 26.0+, visionOS 26.0+]
path: videotoolbox/vtmotionestimationsession/sourcepixelbufferattributes
---

# sourcePixelBufferAttributes

## Declaration

```swift
final var sourcePixelBufferAttributes: [String : any Sendable] { get }
```

## See Also

### Inspecting the session

- [label](videotoolbox/vtmotionestimationsession/label.md)
- [motionVectorSize](videotoolbox/vtmotionestimationsession/motionvectorsize.md)
- [useMultiPassSearch](videotoolbox/vtmotionestimationsession/usemultipasssearch.md)