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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The VideoPlaybackQuality interface represents the set of metrics describing the playback quality of a video.
An instance is created using the HTMLVideoElement.getVideoPlaybackQuality() method.
Properties
The VideoPlaybackQuality interface doesn't inherit any property.
VideoPlaybackQuality.creationTimeRead only- A
DOMHighResTimeStampcontaining the time in miliseconds since the start of the navigation and the creation of the object. VideoPlaybackQuality.totalVideoFramesRead only- An
unsigned longgiving the number of video frames created and dropped since the creation of the associatedHTMLVideoElement. VideoPlaybackQuality.droppedVideoFramesRead only- An
unsigned longgiving the number of video frames dropped since the creation of the associatedHTMLVideoElement. VideoPlaybackQuality.corruptedVideoFramesRead only- An
unsigned longgiving the number of video frames corrupted since the creation of the associatedHTMLVideoElement. A corrupted frame may be created or dropped. VideoPlaybackQuality.totalFrameDelayRead only Obsolete since Gecko 30- A
doublecontaining the sum of the frame delay since the creation of the associatedHTMLVideoElement. The frame delay is the difference between a frame's theoretical presentation time and its effective display time.
Methods
The VideoPlaybackQuality interface neither implements any specific method, nor inherits any.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Media Source Extensions The definition of 'VideoPlaybackQuality' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 23 | 25.0 (25.0)[1] 42.0 (42.0) |
11[2] | 15 | 8 |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 4.4.4 |
Not supported |
Not supported | 11 | 30 | Not supported |
[1] Available after switching the about:config preference media.mediasource.enabled to true. In addition, support was limited to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed and Media Source Extensions was enabled by default in 42+ for all sites.
[2] Only works on Windows 8+.
See also
- The
HTMLVideoElement.getVideoPlaybackQuality()method for constructing and returning this interface. MediaSourceSourceBuffer