---
title: optimizesAuxiliaryContentConfigurations
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetdownloadconfiguration/optimizesauxiliarycontentconfigurations
---

# optimizesAuxiliaryContentConfigurations

A Boolean value that indicates whether the task optimizes auxiliary content selection.

## Declaration

```swift
var optimizesAuxiliaryContentConfigurations: Bool { get set }
```

## Discussion

Discussion By default, a download task optimizes its selection of auxiliary content based on its primary download content. For example, if the primary content configuration represents stereo renditions, and auxiliary content configuration represents multichannel audio renditions, the task choses the auxiliary multichannel variant to avoid downloading duplicate video renditions.

## See Also

### Accessing configuration details

- [artworkData](avfoundation/avassetdownloadconfiguration/artworkdata.md)
- [primaryContentConfiguration](avfoundation/avassetdownloadconfiguration/primarycontentconfiguration.md)
- [auxiliaryContentConfigurations](avfoundation/avassetdownloadconfiguration/auxiliarycontentconfigurations.md)
- [AVAssetDownloadContentConfiguration](avfoundation/avassetdownloadcontentconfiguration.md)
- [downloadsInterstitialAssets](avfoundation/avassetdownloadconfiguration/downloadsinterstitialassets.md)
- [setInterstitialMediaSelectionCriteria(_:forMediaCharacteristic:)](avfoundation/avassetdownloadconfiguration/setinterstitialmediaselectioncriteria(_:formediacharacteristic:).md)