---
title: AVVideoPixelAspectRatioKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avvideopixelaspectratiokey
---

# AVVideoPixelAspectRatioKey

A key to access the video’s pixel aspect ratio.

## Declaration

```swift
let AVVideoPixelAspectRatioKey: String
```

## Discussion

Discussion The value for this key is an instance of NSDictionary.

## See Also

### Geometry

- [AVVideoWidthKey](avfoundation/avvideowidthkey.md)
- [AVVideoHeightKey](avfoundation/avvideoheightkey.md)
- [AVVideoPixelAspectRatioVerticalSpacingKey](avfoundation/avvideopixelaspectratioverticalspacingkey.md)
- [AVVideoPixelAspectRatioHorizontalSpacingKey](avfoundation/avvideopixelaspectratiohorizontalspacingkey.md)