---
title: "init(trackID:)"
framework: avfoundation
role: symbol
role_heading: Initializer
path: "avfoundation/avvideocompositionlayerinstruction/configuration/init(trackid:)"
---

# init(trackID:)

Creates a new video composition layer instruction for the given track ID.

## Declaration

```swift
init(trackID: CMPersistentTrackID = .zero)
```

## See Also

### Creating a configuration

- [init(assetTrack:)](avfoundation/avvideocompositionlayerinstruction/configuration/init(assettrack:).md)