---
title: AVAssetDownloadTaskMinimumRequiredPresentationSizeKey
framework: avfoundation
role: symbol
role_heading: Global Variable
path: avfoundation/avassetdownloadtaskminimumrequiredpresentationsizekey
---

# AVAssetDownloadTaskMinimumRequiredPresentationSizeKey

A key that indicates the minimum presentation size of the variant to download.

## Declaration

```swift
let AVAssetDownloadTaskMinimumRequiredPresentationSizeKey: String
```

## Discussion

Discussion By default, a download task selects the variant with the largest media presentation size. To download a variant of a particular size, provide a CGSize value for this key.

## See Also

### Download option keys

- [AVAssetDownloadTaskMinimumRequiredMediaBitrateKey](avfoundation/avassetdownloadtaskminimumrequiredmediabitratekey.md)
- [AVAssetDownloadTaskMediaSelectionKey](avfoundation/avassetdownloadtaskmediaselectionkey.md)
- [AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey](avfoundation/avassetdownloadtaskmediaselectionprefersmultichannelkey.md)
- [AVAssetDownloadTaskPrefersHDRKey](avfoundation/avassetdownloadtaskprefershdrkey.md)
- [AVAssetDownloadTaskPrefersLosslessAudioKey](avfoundation/avassetdownloadtaskpreferslosslessaudiokey.md)