---
title: trackGroups
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avasset/trackgroups
---

# trackGroups

The track groups an asset contains.

## Declaration

```swift
var trackGroups: [AVAssetTrackGroup] { get }
```

## Discussion

Discussion This value is an empty array if the asset has no track groups.