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# makeAssetDownloadTask(asset:destinationURL:options:)

Creates a download task to download the asset to the indicated location.

```
func makeAssetDownloadTask(asset URLAsset: AVURLAsset, destinationURL: URL, options: [String : Any]? = nil) -> AVAssetDownloadTask?
```

## Parameters

`URLAsset`

The asset to download to the local device.

`destinationURL`

The local file URL to download the asset to.

`options`

Configures non-default behavior for the download task. To download nondefault media selections, you must indicate download options.

## Return Value

A new download task.

## Topics

### Download option keys

[`AVAssetDownloadTaskMinimumRequiredMediaBitrateKey`](/documentation/AVFoundation/AVAssetDownloadTaskMinimumRequiredMediaBitrateKey)

A key that indicates the minimum bit rate of the variant to download.

[`AVAssetDownloadTaskMinimumRequiredPresentationSizeKey`](/documentation/AVFoundation/AVAssetDownloadTaskMinimumRequiredPresentationSizeKey)

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

[`AVAssetDownloadTaskMediaSelectionKey`](/documentation/AVFoundation/AVAssetDownloadTaskMediaSelectionKey)

A key that indicates which media selection to download.

[`AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey`](/documentation/AVFoundation/AVAssetDownloadTaskMediaSelectionPrefersMultichannelKey)

A key that indicates whether the task downloads media selections with support for multichannel playback, when available.

[`AVAssetDownloadTaskPrefersHDRKey`](/documentation/AVFoundation/AVAssetDownloadTaskPrefersHDRKey)

A key that indicates whether the task downloads HDR instead of SDR video, when available.

[`AVAssetDownloadTaskPrefersLosslessAudioKey`](/documentation/AVFoundation/AVAssetDownloadTaskPrefersLosslessAudioKey)

A key that indicates whether the task downloads media selections in lossless audio format, when available.


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