---
title: kVTCompressionPropertyKey_HorizontalDisparityAdjustment
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtcompressionpropertykey_horizontaldisparityadjustment
---

# kVTCompressionPropertyKey_HorizontalDisparityAdjustment

A value that indicates a relative shift of the left and right images, which changes the zero parallax plane.

## Declaration

```swift
let kVTCompressionPropertyKey_HorizontalDisparityAdjustment: CFString
```

## Discussion

Discussion This property sets a value for the kCMFormatDescriptionExtension_HorizontalDisparityAdjustment format description on the output samples. The value is a 32-bit integer, measured over the range of -10000 to 10000, that maps to a uniform range of -1.0 to 1.0. This property is optional. Only specify a disparity adjustment, including 0, when you know the specific value.

## See Also

### Video Extended Usage (VEXU) Signaling

- [kVTCompressionPropertyKey_HasLeftStereoEyeView](videotoolbox/kvtcompressionpropertykey_hasleftstereoeyeview.md)
- [kVTCompressionPropertyKey_HasRightStereoEyeView](videotoolbox/kvtcompressionpropertykey_hasrightstereoeyeview.md)
- [kVTCompressionPropertyKey_HeroEye](videotoolbox/kvtcompressionpropertykey_heroeye.md)
- [kVTCompressionPropertyKey_HorizontalFieldOfView](videotoolbox/kvtcompressionpropertykey_horizontalfieldofview.md)
- [kVTCompressionPropertyKey_ProjectionKind](videotoolbox/kvtcompressionpropertykey_projectionkind.md)
- [kVTCompressionPropertyKey_StereoCameraBaseline](videotoolbox/kvtcompressionpropertykey_stereocamerabaseline.md)
- [kVTCompressionPropertyKey_ViewPackingKind](videotoolbox/kvtcompressionpropertykey_viewpackingkind.md)