---
title: kCVImageBufferChromaLocation_TopLeft
framework: corevideo
role: symbol
role_heading: Global Variable
path: corevideo/kcvimagebufferchromalocation_topleft
---

# kCVImageBufferChromaLocation_TopLeft

A key that indicates the chroma sample is co-sited with the top-left luma sample.

## Declaration

```swift
let kCVImageBufferChromaLocation_TopLeft: CFString
```

## See Also

### Constants

- [kCVImageBufferChromaLocation_Left](corevideo/kcvimagebufferchromalocation_left.md)
- [kCVImageBufferChromaLocation_Center](corevideo/kcvimagebufferchromalocation_center.md)
- [kCVImageBufferChromaLocation_Top](corevideo/kcvimagebufferchromalocation_top.md)
- [kCVImageBufferChromaLocation_BottomLeft](corevideo/kcvimagebufferchromalocation_bottomleft.md)
- [kCVImageBufferChromaLocation_Bottom](corevideo/kcvimagebufferchromalocation_bottom.md)
- [kCVImageBufferChromaLocation_DV420](corevideo/kcvimagebufferchromalocation_dv420.md)