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# AVPlayerItemMetadataCollectorPushDelegate

A protocol you implement to receive metadata callbacks from a player item metadata collector.

```
protocol AVPlayerItemMetadataCollectorPushDelegate : NSObjectProtocol, Sendable
```

## Topics

### Accessing HLS date range metadata

[`metadataCollector(_:didCollect:indexesOfNewGroups:indexesOfModifiedGroups:)`](/documentation/AVFoundation/AVPlayerItemMetadataCollectorPushDelegate/metadataCollector(_:didCollect:indexesOfNewGroups:indexesOfModifiedGroups:))

Tells the delegate the collected metadata group information has changed and needs to be updated.


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