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# AVMetricEvent

A base class that represents a metric event.

```
class AVMetricEvent
```

## Topics

### Inspecting an event

[`date`](/documentation/AVFoundation/AVMetricEvent/date)

[`mediaTime`](/documentation/AVFoundation/AVMetricEvent/mediaTime)

[`sessionID`](/documentation/AVFoundation/AVMetricEvent/sessionID)

## Relationships

### Inherited By

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

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

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

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

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

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

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

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

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

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

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

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

### Conforms To

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`NSSecureCoding`](/documentation/Foundation/NSSecureCoding)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`CVarArg`](/documentation/Swift/CVarArg)

[`Sendable`](/documentation/Swift/Sendable)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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