---
title: naturalSize
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcompositiontrack/naturalsize
---

# naturalSize

The natural dimensions of the media data that the track references.

## Declaration

```swift
var naturalSize: CGSize { get }
```

## Discussion

Discussion For visual tracks, like video or subtitle tracks, this property value is the natural size of the media. For nonvisual tracks, like audio or chapter tracks, the value is zero.

## See Also

### Accessing visual characteristics

- [preferredTransform](avfoundation/avcompositiontrack/preferredtransform.md)