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    VideoPlaybackQuality

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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 quality of the restitution of a video.

    It is created by the HTMLVideoElement.getVideoPlaybackQuality() method.

    Properties

    The VideoPlaybackQuality interface doesn't inherit any property.

    VideoPlaybackQuality.creationTime Read only
    Is a DOMHighResTimeStamp containing the time in miliseconds since the start of the navigation and the creation of the object.
    VideoPlaybackQuality.totalVideoFrames Read only
    Is an unsigned long giving the number of video frames created and dropped since the creation of the associated HTMLVideoElement.
    VideoPlaybackQuality.droppedVideoFrames Read only
    Is an unsigned long giving the number of video frames dropped since the creation of the associated HTMLVideoElement.
    VideoPlaybackQuality.corruptedVideoFrames Read only
    Is an unsigned long giving the number of video frames dropped since the creation of the associated HTMLVideoElement. A corrupted frame may be created or dropped.
    VideoPlaybackQuality.totalFrameDelay Read only Obsolete since Gecko 30
    Is a double containing the sum of the frame delay since the creation of the associated HTMLVideoElement. 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 inherit any.

    Specifications

    Specification Status Comment
    Media Source Extensions
    The definition of 'VideoPlaybackQuality' in that specification.
    Working Draft Initial definition.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support Not supported 25.0 (25.0) [1] Not supported Not supported Not supported
    Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
    Basic support Not supported 25.0 (25.0) [1] Not supported Not supported Not supported

    [1] Available after switching the about:config preference media.mediasource.enabled to true.

    See also

    ドキュメントのタグと貢献者

    Contributors to this page: kohei.yoshino, fscholz, teoli
    最終更新者: fscholz,