RTCVideoSourceStats: framesPerSecond property

The framesPerSecond property of the RTCVideoSourceStats dictionary indicates the number of frames originating from this video source in the last second.

The property is not defined on the stats object for the first second of its lifetime.

Value

A number indicating the frames originating from this source in the last second.

Examples

This example shows how you might iterate the stats object returned from RTCRtpSender.getStats() to get the video source stats, and then extract the framesPerSecond.

js
// where sender is an RTCRtpSender
const stats = await sender.getStats();
let videoSourceStats = null;

stats.forEach((report) => {
  if (report.type === "media-source" && report.kind==="video") {
    videoSourceStats = report;
    break;
  }
});

// Note, test is conditional in case the stats object
// does not include video source stats
const fps = videoSourceStats?.framesPerSecond;

Specifications

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

Browser compatibility

Report problems with this compatibility data on GitHub
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
framesPerSecond in 'media-source' stats for video

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Full support
No support