VideoPlaybackQuality: creationTime 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 read-only creationTime
property on the
VideoPlaybackQuality
interface reports the number of milliseconds since
the browsing context was created this quality sample was recorded.
Value
A 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 Performance.now()
.
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.
const videoElem = document.getElementById("my_vid");
const quality = videoElem.getVideoPlaybackQuality();
if (
(quality.corruptedVideoFrames + quality.droppedVideoFrames) /
quality.totalVideoFrames >
0.1
) {
lostFramesThresholdExceeded();
}
Specifications
Specification |
---|
Media Playback Quality # dom-videoplaybackquality-creationtime |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
creationTime |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
See also
- The
HTMLVideoElement.getVideoPlaybackQuality()
method, which returnsVideoPlaybackQuality
objects