---
title: AVMetricPlayerItemRateChangeEvent
framework: avfoundation
role: symbol
role_heading: Class
path: avfoundation/avmetricplayeritemratechangeevent
---

# AVMetricPlayerItemRateChangeEvent

An event that represents when the playback rate changes.

## Declaration

```swift
class AVMetricPlayerItemRateChangeEvent
```

## Topics

### Inspecting the event

- [previousRate](avfoundation/avmetricplayeritemratechangeevent/previousrate.md)
- [rate](avfoundation/avmetricplayeritemratechangeevent/rate.md)
- [variant](avfoundation/avmetricplayeritemratechangeevent/variant.md)

## Relationships

### Inherits From

- [AVMetricEvent](avfoundation/avmetricevent.md)

### Inherited By

- [AVMetricPlayerItemSeekDidCompleteEvent](avfoundation/avmetricplayeritemseekdidcompleteevent.md)
- [AVMetricPlayerItemSeekEvent](avfoundation/avmetricplayeritemseekevent.md)
- [AVMetricPlayerItemStallEvent](avfoundation/avmetricplayeritemstallevent.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Transport control

- [AVMetricPlayerItemPlaybackSummaryEvent](avfoundation/avmetricplayeritemplaybacksummaryevent.md)
- [AVMetricPlayerItemSeekDidCompleteEvent](avfoundation/avmetricplayeritemseekdidcompleteevent.md)
- [AVMetricPlayerItemSeekEvent](avfoundation/avmetricplayeritemseekevent.md)