HTMLVideoElement

ここへジャンプ:
  1. Properties
  2. Methods
  3. Specifications
  4. Browser compatibility
  5. See also

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The HTMLVideoElement interface provides special properties and methods for manipulating video objects. It also inherits properties and methods of HTMLMediaElement and HTMLElement.

The list of supported media formats varies from one browser to the other. You should either provide your video in a single format that all the relevant browsers supports, or provide multiple video sources in enough different formats that all the browsers you need to support are covered.

Properties

Inherits properties from its ancestor interfaces, HTMLMediaElement, and HTMLElement.

HTMLVideoElement.height
Is a DOMString that reflects the height HTML attribute, which specifies the height of the display area, in CSS pixels.
HTMLVideoElement.poster
Is a DOMString that reflects the poster HTML attribute, which specifies an image to show while no video data is available.
HTMLVideoElement.videoHeight Read only
Returns an unsigned long containing the intrinsic height of the resource in CSS pixels, taking into account the dimensions, aspect ratio, clean aperture, resolution, and so forth, as defined for the format used by the resource. If the element's ready state is HAVE_NOTHING, the value is 0.
HTMLVideoElement.videoWidth Read only
Returns an unsigned long containing the intrinsic width of the resource in CSS pixels, taking into account the dimensions, aspect ratio, clean aperture, resolution, and so forth, as defined for the format used by the resource. If the element's ready state is HAVE_NOTHING, the value is 0.
HTMLVideoElement.width
Is a DOMString that reflects the width HTML attribute, which specifies the width of the display area, in CSS pixels.

Gecko-specific properties

HTMLVideoElement.mozParsedFrames Read only
Returns an unsigned long with the count of video frames that have been parsed from the media resource.
HTMLVideoElement.mozDecodedFrames Read only
Returns an unsigned long with the count of parsed video frames that have been decoded into images.
HTMLVideoElement.mozPresentedFrames Read only
Returns an unsigned long with the count of decoded frames that have been presented to the rendering pipeline for painting.
HTMLVideoElement.mozPaintedFrames Read only
Returns an unsigned long with the count of presented frames which were painted on the screen.
HTMLVideoElement.mozFrameDelay Read only
Returns an double with the time which the last painted video frame was late by, in seconds.
HTMLVideoElement.mozHasAudio Read only
Returns a Boolean indicating if there is some audio associated with the video.

Methods

Inherits methods from its parent, HTMLMediaElement, and HTMLElement.

HTMLVideoElement.getVideoPlaybackQuality()
Returns a VideoPlaybackQuality objects that contains the current playback metrics.

Specifications

Specification Status Comment
Media Source Extensions
The definition of 'Extensions to HTMLVideoElement' in that specification.		 Recommendation Added the getVideoPlaybackQuality() method.
HTML Living Standard
The definition of 'HTMLAreaElement' in that specification.		 Living Standard No change from HTML5.
HTML5
The definition of 'HTMLAreaElement' in that specification.		 Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes4910.5 Yes
height Yes124910.5 Yes
poster Yes124910.5 Yes
videoHeight Yes124910.5 Yes
videoWidth Yes124910.5 Yes
width Yes124910.5 Yes
mozParsedFrames No No5 No No No
mozDecodedFrames No No5 No No No
mozPresentedFrames No No5 No No No
mozPaintedFrames No No5 No No No
mozFrameDelay No No5 No No No
mozHasAudio No No15 No No No
getVideoPlaybackQuality2312

42

25 — 421 2

113158
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes4 Yes Yes Yes
height Yes Yes Yes4 Yes Yes Yes
poster Yes Yes Yes4 Yes Yes Yes
videoHeight Yes Yes Yes4 Yes Yes Yes
videoWidth Yes Yes Yes4 Yes Yes Yes
width Yes Yes Yes4 Yes Yes Yes
mozParsedFrames No No No5 No No No
mozDecodedFrames No No No5 No No No
mozPresentedFrames No No No5 No No No
mozPaintedFrames No No No5 No No No
mozFrameDelay No No No5 No No No
mozHasAudio No No No15 No No No
getVideoPlaybackQuality33 ? Yes No30 No ?

1. Limited support to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed when Media Source Extensions was enabled by default in Firefox 42.

2. From version 25 until version 42 (exclusive): this feature is behind the media.mediasource.enabled preference. To change preferences in Firefox, visit about:config.

3. Only works on Windows 8+.

See also

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