---
title: preferredTagCollections
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avvideooutputspecification/preferredtagcollections-3gdo7
---

# preferredTagCollections

## Declaration

```swift
var preferredTagCollections: [[CMTag]] { get }
```

## See Also

### Configuring the specification

- [defaultOutputSettings](avfoundation/avvideooutputspecification/defaultoutputsettings.md)
- [setOutputSettings(_:for:)](avfoundation/avvideooutputspecification/setoutputsettings(_:for:).md)
- [defaultPixelBufferAttributes](avfoundation/avvideooutputspecification/defaultpixelbufferattributes.md)
- [setOutputPixelBufferAttributes(_:for:)](avfoundation/avvideooutputspecification/setoutputpixelbufferattributes(_:for:).md)