---
title: dataChannelDescription
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avplayervideooutput/configuration/datachanneldescription
---

# dataChannelDescription

An array of data channels selected for this configuration.

## Declaration

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

## See Also

### Inspecting the configuration

- [sourcePlayerItem](avfoundation/avplayervideooutput/configuration/sourceplayeritem.md)
- [activationTime](avfoundation/avplayervideooutput/configuration/activationtime.md)
- [preferredTransform](avfoundation/avplayervideooutput/configuration/preferredtransform.md)