RTCInboundRtpStreamStats: jitterBufferTargetDelay property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The jitterBufferTargetDelay property of the RTCInboundRtpStreamStats dictionary indicates the accumulated target jitter buffer delay, in seconds.

The target jitter buffer delay is the playout delay that the jitter buffer estimates that it needs to maintain in order to compensate for jitter and ensure smooth playback. The estimate is affected by network variability and latency as well as mechanisms such as AV synchronization. Developers can influence it by setting the RTCRtpReceiver.jitterBufferTarget property.

The property is updated when jitterBufferEmittedCount is updated. The average target jitter buffer delay is jitterBufferTargetDelay / jitterBufferEmittedCount.

The property can be compared to the average of the jitterBufferMinimumDelay to determine the effects of external factors on the target, such as the configured jitterBufferTarget hint.

Value

A positive number, in seconds.

Specifications

Specification
Identifiers for WebRTC's Statistics API
# dom-rtcinboundrtpstreamstats-jitterbuffertargetdelay

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
jitterBufferTargetDelay in 'inbound-rtp' stats
Chrome – Full support
Chrome 105 (Release date: 2022-09-02)
footnote Full support
Edge – Full support
Edge 105 (Release date: 2022-09-01)
footnote Full support
Firefox – Full support
Firefox 142 (Release date: 2025-08-19)
footnote Full support
Opera – Full support
Opera 91 (Release date: 2022-09-14)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 105 (Release date: 2022-09-02)
footnote Full support
Firefox for Android – Full support
Firefox for Android 142 (Release date: 2025-08-19)
footnote Full support
Opera Android – Full support
Opera Android 72 (Release date: 2022-10-21)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 20 (Release date: 2023-02-10)
footnote Full support
WebView Android – Full support
WebView Android 105 (Release date: 2022-09-02)
footnote Full support
WebView on iOS – No support
WebView on iOS
footnote No support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

See also