---
title: "init(track:)"
framework: avfoundation
role: symbol
role_heading: Initializer
path: "avfoundation/avassetreadersamplereferenceoutput/init(track:)"
---

# init(track:)

Creates an object that supplies sample references.

## Declaration

```swift
init(track: AVAssetTrack)
```

## Parameters

- `track`: The track for which to provide sample references.