VideoPlaybackQuality: totalVideoFrames property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since February 2020.

The VideoPlaybackQuality interface's totalVideoFrames read-only property returns the total number of video frames that have been displayed or dropped since the media was loaded.

Value

The total number of frames that the <video> element has displayed or dropped since the media was loaded into it. Essentially, this is the number of frames the element would have presented had no problems occurred.

This value is reset when the media is reloaded or replaced.

Examples

This example calls getVideoPlaybackQuality() to obtain a VideoPlaybackQuality object, then determines what percentage of frames have been lost by either corruption or being dropped. If that exceeds 10% (0.1), a function called lostFramesThresholdExceeded() is called to, perhaps, update a quality indicator to show an increase in frame loss.

js
const videoElem = document.getElementById("my_vid");
const quality = videoElem.getVideoPlaybackQuality();

if (
  (quality.corruptedVideoFrames + quality.droppedVideoFrames) /
    quality.totalVideoFrames >
  0.1
) {
  lostFramesThresholdExceeded();
}

A similar algorithm might be used to attempt to switch to a lower-resolution video that requires less bandwidth, in order to avoid dropping frames.

Specifications

Specification
Media Playback Quality
# dom-videoplaybackquality-totalvideoframes

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
totalVideoFrames

Legend

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

Full support
Full support

See also