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# PHVideoRequestOptionsDeliveryMode.automatic

Photos automatically determines which quality of video data to provide based on the request and current conditions.

```
case automatic
```

## Discussion

When you request an <doc://com.apple.documentation/documentation/AVFoundation/AVAsset> or <doc://com.apple.documentation/documentation/AVFoundation/AVPlayerItem> object, Photos typically uses the medium-quality format. When you request an <doc://com.apple.documentation/documentation/AVFoundation/AVAssetExportSession> object for writing out the asset’s contents, Photos always uses the high-quality format.

---

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