---
title: Metric event types
framework: avfoundation
role: collectionGroup
role_heading: API Collection
path: avfoundation/metric-event-types
---

# Metric event types

## Topics

### HTTP Live Streaming

- [AVMetricMediaResourceRequestEvent](avfoundation/avmetricmediaresourcerequestevent.md)
- [AVMetricContentKeyRequestEvent](avfoundation/avmetriccontentkeyrequestevent.md)
- [AVMetricHLSMediaSegmentRequestEvent](avfoundation/avmetrichlsmediasegmentrequestevent.md)
- [AVMetricHLSPlaylistRequestEvent](avfoundation/avmetrichlsplaylistrequestevent.md)
- [AVMetricPlayerItemVariantSwitchStartEvent](avfoundation/avmetricplayeritemvariantswitchstartevent.md)
- [AVMetricPlayerItemVariantSwitchEvent](avfoundation/avmetricplayeritemvariantswitchevent.md)
- [AVMetricMediaRendition](avfoundation/avmetricmediarendition.md)

### Buffering

- [AVMetricPlayerItemStallEvent](avfoundation/avmetricplayeritemstallevent.md)
- [AVMetricPlayerItemLikelyToKeepUpEvent](avfoundation/avmetricplayeritemlikelytokeepupevent.md)
- [AVMetricPlayerItemInitialLikelyToKeepUpEvent](avfoundation/avmetricplayeriteminitiallikelytokeepupevent.md)

### Transport control

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

### Playback mode

- [AVMetricPlaybackMode](avfoundation/avmetricplaybackmode.md)
- [AVMetricPlaybackModeSwitchEvent](avfoundation/avmetricplaybackmodeswitchevent.md)

### Summary

- [AVMetricPlayerItemPlaybackSummaryEvent](avfoundation/avmetricplayeritemplaybacksummaryevent.md)
- [AVMetricDownloadSummaryEvent](avfoundation/avmetricdownloadsummaryevent.md)

## See Also

### Metrics

- [AVMetrics](avfoundation/avmetrics.md)
- [AVMergedMetrics](avfoundation/avmergedmetrics.md)
- [AVVideoPerformanceMetrics](avfoundation/avvideoperformancemetrics.md)
- [AVMetricEventStreamPublisher](avfoundation/avmetriceventstreampublisher.md)
- [AVMetricEvent](avfoundation/avmetricevent.md)
- [AVMetricErrorEvent](avfoundation/avmetricerrorevent.md)