RTCOutboundRtpStreamStats: framesPerSecond property

Limited availability

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

The framesPerSecond property of the RTCOutboundRtpStreamStats dictionary indicates the number of encoded frames sent in the last second.

Note that this may be lower than the media source frame rate, which is provided in RTCVideoSourceStats.framesPerSecond.

Note: The value does not exist for audio, or before the first second of encoding.

Value

A positive number.

Specifications

Specification
Identifiers for WebRTC's Statistics API
# dom-rtcoutboundrtpstreamstats-framespersecond

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
framesPerSecond in 'outbound-rtp' stats
Chrome – Full support
Chrome 84 (Release date: 2020-07-27)
footnote Full support
Edge – Full support
Edge 84 (Release date: 2020-07-16)
footnote Full support
Firefox – Full support
Firefox 115 (Release date: 2023-07-04)
footnote Full support
Opera – Full support
Opera 70 (Release date: 2020-07-27)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 84 (Release date: 2020-07-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 115 (Release date: 2023-07-04)
footnote Full support
Opera Android – Full support
Opera Android 60 (Release date: 2020-09-23)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 14 (Release date: 2021-04-17)
footnote Full support
WebView Android – Full support
WebView Android 84 (Release date: 2020-07-27)
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