VideoPlaybackQuality: creationTime property

{{APIRef("HTML DOM")}}

The read-only creationTime property on the {{domxref("VideoPlaybackQuality")}} interface reports the number of milliseconds since the browsing context was created this quality sample was recorded.

Value

A {{domxref("DOMHighResTimeStamp")}} object which indicates the number of milliseconds that elapsed between the time the browsing context was created and the time at which this sample of the video quality was obtained.

For details on how the time is determined, see {{domxref("Performance.now()")}}.

Examples

This example calls getVideoPlaybackQuality() to obtain a {{domxref("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.

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

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

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• The {{domxref("HTMLVideoElement.getVideoPlaybackQuality()")}} method, which returns VideoPlaybackQuality objects