video object

Specifies the video content to be played in a document.

HTML5 A vocabulary and associated APIs for HTML and XHTML, Section 4.8.6Internet Explorer 9


DOM Information

Inheritance Hierarchy



The video object has these types of members:


The video object has these events.


Occurs when playback is possible, but would require further buffering.


Occurs when playback to end is possible without requiring a stop for further buffering.


Occurs when the duration attribute is updated.


Occurs when the media element is reset to its initial state.


Occurs when the end of playback is reached.


Occurs when media data is loaded at the current playback position.


Occurs when the duration and dimensions of the media have been determined.


Occurs when Internet Explorer begins looking for media data.


Occurs when playback is paused.


Occurs when the play method is requested.


Occurs when the audio or video has started playing.


Occurs to indicate progress while downloading media data.


Occurs when the playback rate is increased or decreased.


Fires when a video element's width or height attributes (or both) are updated.


Occurs when the seek operation ends.


Occurs when the current playback position is moved.


Occurs when the download has stopped.


Occurs if the load operation is intentionally halted. Starting in Microsoft Edge, also occurs if the media network state becomes NETWORK_IDLE.


Occurs to indicate the current playback position.


Occurs when the volume is changed, or playback is muted or unmuted.


Occurs when playback stops because the next frame of a video resource is not available.



The video object has these methods.


Create a new TextTrack object to add to an HTML5 video.


Returns a string that specifies whether the client can play a given media resource type.


Returns a VideoPlaybackQuality object from for a given video element.


Resets the audio or video object and loads a new media resource.


Pauses the current playback and sets paused to true. This can be used to test whether the media is playing or paused. You can also use the pause or play events to tell whether the media is playing or not.


Loads and starts playback of a media resource.



The video object has these properties.

PropertyAccess typeDescription


Use the preload element instead. The autobuffer property was initially listed in the W3C spec, but has been dropped. No version of Internet Explorer supports it.


Gets or sets a value that indicates whether to start playing the media automatically.


Gets a collection of buffered time ranges.


Gets or sets a flag that indicates whether the client provides a set of controls for the media (in case the developer does not include controls for the player).


Gets the address or URL of the current media resource (video,audio) that is selected by IHTMLMediaElement.


Gets or sets the current playback position, in seconds.


Get or sets the current state of the muted attribute.


Gets or sets the default playback rate when the user is not using fast forward or reverse for a video or audio resource.


Returns the duration in seconds of the current media resource. A NaN value is returned if duration is not available, or Infinity if the media resource is streaming.


Gets information about whether the playback has ended or not.


Returns an object representing the current error state of the audio or video element.


Gets or sets the height of the video element.


Gets the earliest possible position, in seconds, that the playback can begin. The initialTime property was initially listed in the W3C specification, but has been dropped. No new version of Internet Explorer supports it.


Gets or sets a flag to specify whether playback should restart after it completes.


Gets or sets when the video player control is in boxed ( letterbox or pillarbox) mode.



Gets the MSMediaKeys object, which is used for decrypting media data, that is associated with this media element.


Gets or sets a flag that indicates whether the audio (either audio or the audio track on video media) is muted.


Gets the current network activity for the element.


Gets a flag that specifies whether playback is paused.


Gets or sets the current rate of speed for the media resource to play. This speed is expressed as a multiple of the normal speed of the media resource.


Gets TimeRanges for the current media resource that has been played.


Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.


Gets or sets a hint to how much buffering is advisable for a media resource, even if autoplay isn't specified.

readyState (media, audio, video)


Gets the current state of an audio or video resource.


Returns a TimeRanges object that represents the ranges of the current media resource that can be seeked.


Gets a flag that indicates whether the the client is currently moving to a new playback position in the media resource.


The address or URL of the a media resource (videoaudio) that is to be considered.



Returns a list of TextTrack objects from a video object.


Gets the intrinsic height of a video in CSS pixels, or zero if the dimensions are not known.


Gets the intrinsic width of a video in CSS pixels, or zero if the dimensions are not known.


Gets or sets the volume level for audio portions of the media element.


Gets or sets the width of the video element.


Standards information


Note  If you are developing locally or on an intranet and have rendering issues for HTML5, you can add a "meta http-equiv-'X-UA-Compatible' content= " meta command, followed by "IE=edge" to the <head> block of a webpage to force Internet Explorer to use the latest standards. For more information about document compatibility, see Defining Document Compatibility.

Beginning with Windows Internet Explorer 9, any audio or video content needs the correct mime type set on the server, or the files won't play. Internet Explorer 9 supports MP3 audio, and MP4 audio and video. WebM audio and video files can be supported by installing the WebM components from The WebM project. Updates to Microsoft Edge introduced HLS and DASH support. The following table shows the required settings for your web server to host these files correctly.

Media file to serveExtension settingMime type setting
Audio mp3mp3audio/mpeg
Audio mp4 m4aaudio/mp4
Audio WebMwebmaudio/webm
Video mp4mp4video/mp4
Video webmwebmvideo/webm
Video HLS.m3u8application/, audio/mpegurl,application/x-mpegurl, or audio/x-mpegURL
Video DASH.mpdapplication/dash+xml


When you use an HLS (HTTP Live Streaming) format file, the src URL is a Playlist file rather than an individual video file. The extension m3u8 denotes a .m3u file encoded with UTF-8. Internet Explorer 11 internally handles downloading and playing the video and audio segments. For more info on HLS file formats, see the HTTP Live Streaming specification.

The following extensions are available to the Video object when used in a Windows Store app using JavaScript.

Microsoft ExtensionDescription
msClearEffects Clears all effects from the media pipeline.
msFrameStep Steps the video by one frame forward or one frame backward. Only available on the video object.
msInsertAudioEffect Inserts the specified audio effect into media pipeline.
msInsertVideoEffect Inserts the specified video effect into media pipeline.
msSetMediaProtectionManager Specifies the media protection manager for a given media pipeline.
msSetVideoRectangle Sets the dimensions of a sub-rectangle within a video. Only available on the video object.
msAudioCategory Specifies the purpose the audio or video media, such as background audio or alerts.
msAudioDeviceType Specifies the output devices that the audio will be sent to.
msHorizontalMirror Sets or gets whether a video element is flipped horizontally in the display. Only available on the video object.
msIsLayoutOptimalForPlayback Indicates whether the video can be rendered more efficiently.
msIsStereo3D Determines whether the system considers the video source that is loaded to be stereo 3-D or not. Only available on the video object.
msPlayToDisabled Gets or sets whether the PlayTo device is available.
msPlayToPrimary Gets or sets the primary PlayTo device.
msPlayToSource Gets the source associated with the media element for use by the PlayToManager.
msRealTime Specifies whether or not to enable low-latency playback on the media element.
msStereo3DPackingMode Gets or sets the frame-packing mode for stereo 3-D video content. Only available on the video object.
msStereo3DRenderMode Gets or sets whether the system display is set to stereo display (if stereo-capable). Only available on the video object.
msZoom Gets or sets whether the video frame is trimmed, on the top and bottom or left and right, to fit the video display. Only available on the video object.
onMSVideoFormatChanged Occurs when the video format changes. Only available on the video object.
onMSVideoFrameStepCompleted Occurs when the video frame has been stepped forward or backward one frame. Only available on the video object.
onMSVideoOptimalLayoutChanged Occurs when the msIsLayoutOptimalForPlayback state changes.


For information on video formats supported on the Video tag when used in a Windows Store app using JavaScript, see Supported audio and video formats.

To prevent the display from be deactivating when user action is no longer detected, such as when an app is playing video, you can call DisplayRequest.RequestActive. To conserve power and battery life, you should call DisplayRequest.RequestRelease to release the display request when it is no longer required. See the Display power state sample for more info.

For an example of audio and video playback in a Windows Store app using JavaScript, see the HTML media playback sample.

For additional information on creating Windows Store apps using JavaScript, see Roadmap for Windows Store apps using JavaScript.

For additional information on playing audio and video in a Windows Store app using JavaScript, see Adding multimedia. For information on audio and video performance, see Audio and video performance.


This example shows how to play a video by using HTML5.

Using one of the following formats, type the name of an MP4-format video file into the text box:

  • Local file syntax: "file://C:\yourfilepath.mp4"
  • Web file syntax: "http://webfilepath.mp4"

    <title>Simple Video Example</title>
     <script type="text/javascript">
         function playVideo() {
             var oInput = document.getElementById('videoFile');   //text box
             var oVideo = document.getElementById('video1');      //video element
             oVideo.src = oInput.value;

         function pauseVideo() {
             var oVideo = document.getElementById('video1');
<video id="video1" >HTML5 video is not supported</video>
<br />
<!-- Preload a video into the text field -->
<input type="text" id="videoFile" style="width:600px" value=""/>
<button onclick="playVideo();">Play</button> <button onclick="pauseVideo();">Pause</button>

See also

How to use HTML5 to play video files on your webpage
Building a simple MPEG-DASH streaming player



© 2015 Microsoft