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video.js/docs/api/vjs.Player.md
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<!-- GENERATED FROM SOURCE -->
# vjs.Player
__EXTENDS__: [vjs.Component](vjs.Component.md)
__DEFINED IN__: [src/js/player.js#L21](https://github.com/videojs/video.js/blob/master/src/js/player.js#L21)
An instance of the `vjs.Player` class is created when any of the Video.js setup methods are used to initialize a video.
```js
var myPlayer = videojs('example_video_1');
```
In the follwing example, the `data-setup` attribute tells the Video.js library to create a player instance when the library is ready.
```html
<video id="example_video_1" data-setup='{}' controls>
<source src="my-source.mp4" type="video/mp4">
</video>
```
After an instance has been created it can be accessed globally using `Video('example_video_1')`.
---
## INDEX
- [METHODS](#methods)
- [buffered](#buffered)
- [bufferedPercent](#bufferedpercent)
- [cancelFullScreen](#cancelfullscreen)
- [controls](#controls-controls-)
- [currentTime](#currenttime-seconds-)
- [dispose](#dispose)
- [duration](#duration-seconds-)
- [init](#init-tag-options-ready-)
- [muted](#muted-muted-)
- [pause](#pause)
- [paused](#paused)
- [play](#play)
- [poster](#poster-src-)
- [requestFullScreen](#requestfullscreen)
- [src](#src-source-)
- [volume](#volume-percentasdecimal-)
- [addChild](#addchild-child-options-) _`inherited`_
- [addClass](#addclass-classtoadd-) _`inherited`_
- [buildCSSClass](#buildcssclass) _`inherited`_
- [children](#children) _`inherited`_
- [contentEl](#contentel) _`inherited`_
- [createEl](#createel-tagname-attributes-) _`inherited`_
- [dimensions](#dimensions-width-height-) _`inherited`_
- [disable](#disable) _`inherited`_
- [el](#el) _`inherited`_
- [getChild](#getchild-name-) _`inherited`_
- [getChildById](#getchildbyid-id-) _`inherited`_
- [height](#height-num-skiplisteners-) _`inherited`_
- [hide](#hide) _`inherited`_
- [id](#id) _`inherited`_
- [initChildren](#initchildren) _`inherited`_
- [name](#name) _`inherited`_
- [off](#off-type-fn-) _`inherited`_
- [on](#on-type-fn-) _`inherited`_
- [one](#one-type-fn-) _`inherited`_
- [options](#options-obj-) _`inherited`_
- [player](#player) _`inherited`_
- [ready](#ready-fn-) _`inherited`_
- [removeChild](#removechild-component-) _`inherited`_
- [removeClass](#removeclass-classtoremove-) _`inherited`_
- [show](#show) _`inherited`_
- [trigger](#trigger-type-event-) _`inherited`_
- [triggerReady](#triggerready) _`inherited`_
- [width](#width-num-skiplisteners-) _`inherited`_
- [EVENTS](#events)
- [durationchange](#durationchange-event)
- [ended](#ended-event)
- [error](#error-event)
- [firstplay](#firstplay-event)
- [fullscreenchange](#fullscreenchange-event)
- [loadedalldata](#loadedalldata-event)
- [loadeddata](#loadeddata-event)
- [loadedmetadata](#loadedmetadata-event)
- [loadstart](#loadstart-event)
- [pause](#pause-event)
- [play](#play-event)
- [progress](#progress-event)
- [timeupdate](#timeupdate-event)
- [volumechange](#volumechange-event)
- [resize](#resize-event) _`inherited`_
---
## METHODS
### addChild( child, [options] )
> Adds a child component inside this component
>
> myComponent.el();
> // -> <div class='my-component'></div>
> myComonent.children();
> // [empty array]
>
> var myButton = myComponent.addChild('MyButton');
> // -> <div class='my-component'><div class="my-button">myButton<div></div>
> // -> myButton === myComonent.children()[0];
>
> Pass in options for child constructors and options for children of the child
>
> var myButton = myComponent.addChild('MyButton', {
> text: 'Press Me',
> children: {
> buttonChildExample: {
> buttonChildOption: true
> }
> }
> });
##### PARAMETERS:
* __child__ `String|vjs.Component` The class name or instance of a child to add
* __options__ `Object` _(OPTIONAL)_ Options, including options to be passed to children of the child.
##### RETURNS:
* `vjs.Component` The child component (created by this process if a string was used)
_inherited from_: [src/js/component.js#L343](https://github.com/videojs/video.js/blob/master/src/js/component.js#L343)
---
### addClass( classToAdd )
> Add a CSS class name to the component's element
##### PARAMETERS:
* __classToAdd__ `String` Classname to add
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L628](https://github.com/videojs/video.js/blob/master/src/js/component.js#L628)
---
### buffered()
> Get a TimeRange object with the times of the video that have been downloaded
>
> If you just want the percent of the video that's been downloaded,
> use bufferedPercent.
>
> // Number of different ranges of time have been buffered. Usually 1.
> numberOfRanges = bufferedTimeRange.length,
>
> // Time in seconds when the first range starts. Usually 0.
> firstRangeStart = bufferedTimeRange.start(0),
>
> // Time in seconds when the first range ends
> firstRangeEnd = bufferedTimeRange.end(0),
>
> // Length in seconds of the first time range
> firstRangeLength = firstRangeEnd - firstRangeStart;
##### RETURNS:
* `Object` A mock TimeRange object (following HTML spec)
_defined in_: [src/js/player.js#L717](https://github.com/videojs/video.js/blob/master/src/js/player.js#L717)
---
### bufferedPercent()
> Get the percent (as a decimal) of the video that's been downloaded
>
> var howMuchIsDownloaded = myPlayer.bufferedPercent();
>
> 0 means none, 1 means all.
> (This method isn't in the HTML5 spec, but it's very convenient)
##### RETURNS:
* `Number` A decimal between 0 and 1 representing the percent
_defined in_: [src/js/player.js#L743](https://github.com/videojs/video.js/blob/master/src/js/player.js#L743)
---
### buildCSSClass()
> Allows sub components to stack CSS class names
##### RETURNS:
* `String` The constructed class name
_inherited from_: [src/js/component.js#L471](https://github.com/videojs/video.js/blob/master/src/js/component.js#L471)
---
### cancelFullScreen()
> Return the video to its normal size after having been in full screen mode
>
> myPlayer.cancelFullScreen();
##### RETURNS:
* `vjs.Player` self
_defined in_: [src/js/player.js#L864](https://github.com/videojs/video.js/blob/master/src/js/player.js#L864)
---
### children()
> Get an array of all child components
>
> var kids = myComponent.children();
##### RETURNS:
* `Array` The children
_inherited from_: [src/js/component.js#L277](https://github.com/videojs/video.js/blob/master/src/js/component.js#L277)
---
### contentEl()
> Return the component's DOM element for embedding content.
> Will either be el_ or a new element defined in createEl.
##### RETURNS:
* `Element`
_inherited from_: [src/js/component.js#L220](https://github.com/videojs/video.js/blob/master/src/js/component.js#L220)
---
### controls( controls )
> Get or set whether or not the controls are showing.
##### PARAMETERS:
* __controls__ `Boolean` Set controls to showing or not
##### RETURNS:
* `Boolean` Controls are showing
_defined in_: [src/js/player.js#L1115](https://github.com/videojs/video.js/blob/master/src/js/player.js#L1115)
---
### createEl( [tagName], [attributes] )
> Create the component's DOM element
##### PARAMETERS:
* __tagName__ `String` _(OPTIONAL)_ Element's node type. e.g. 'div'
* __attributes__ `Object` _(OPTIONAL)_ An object of element attributes that should be set on the element
##### RETURNS:
* `Element`
_inherited from_: [src/js/component.js#L190](https://github.com/videojs/video.js/blob/master/src/js/component.js#L190)
---
### currentTime( [seconds] )
> Get or set the current time (in seconds)
>
> // get
> var whereYouAt = myPlayer.currentTime();
>
> // set
> myPlayer.currentTime(120); // 2 minutes into the video
##### PARAMETERS:
* __seconds__ `Number|String` _(OPTIONAL)_ The time to seek to
##### RETURNS:
* `Number` The time in seconds, when not setting
* `vjs.Player` self, when the current time is set
_defined in_: [src/js/player.js#L641](https://github.com/videojs/video.js/blob/master/src/js/player.js#L641)
---
### dimensions( width, height )
> Set both width and height at the same time
##### PARAMETERS:
* __width__ `Number|String`
* __height__ `Number|String`
##### RETURNS:
* `vjs.Component` The component
_inherited from_: [src/js/component.js#L730](https://github.com/videojs/video.js/blob/master/src/js/component.js#L730)
---
### disable()
> Disable component by making it unshowable
_inherited from_: [src/js/component.js#L691](https://github.com/videojs/video.js/blob/master/src/js/component.js#L691)
---
### dispose()
> Destroys the video player and does any necessary cleanup
>
> myPlayer.dispose();
>
> This is especially helpful if you are dynamically adding and removing videos
> to/from the DOM.
_defined in_: [src/js/player.js#L128](https://github.com/videojs/video.js/blob/master/src/js/player.js#L128)
---
### duration( seconds )
> Get the length in time of the video in seconds
>
> var lengthOfVideo = myPlayer.duration();
>
> **NOTE**: The video must have started loading before the duration can be
> known, and in the case of Flash, may not be known until the video starts
> playing.
##### PARAMETERS:
* __seconds__
##### RETURNS:
* `Number` The duration of the video in seconds
_defined in_: [src/js/player.js#L671](https://github.com/videojs/video.js/blob/master/src/js/player.js#L671)
---
### el()
> Get the component's DOM element
>
> var domEl = myComponent.el();
##### RETURNS:
* `Element`
_inherited from_: [src/js/component.js#L201](https://github.com/videojs/video.js/blob/master/src/js/component.js#L201)
---
### getChild( name )
> Returns a child component with the provided ID
##### PARAMETERS:
* __name__
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L311](https://github.com/videojs/video.js/blob/master/src/js/component.js#L311)
---
### getChildById( id )
> Returns a child component with the provided ID
##### PARAMETERS:
* __id__
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L294](https://github.com/videojs/video.js/blob/master/src/js/component.js#L294)
---
### height( [num], [skipListeners] )
> Get or set the height of the component (CSS values)
##### PARAMETERS:
* __num__ `Number|String` _(OPTIONAL)_ New component height
* __skipListeners__ `Boolean` _(OPTIONAL)_ Skip the resize event trigger
##### RETURNS:
* `vjs.Component` The component if the height was set
* `Number|String` The height if it wasn't set
_inherited from_: [src/js/component.js#L719](https://github.com/videojs/video.js/blob/master/src/js/component.js#L719)
---
### hide()
> Hide the component element if hidden
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L659](https://github.com/videojs/video.js/blob/master/src/js/component.js#L659)
---
### id()
> Get the component's ID
>
> var id = myComponent.id();
##### RETURNS:
* `String`
_inherited from_: [src/js/component.js#L239](https://github.com/videojs/video.js/blob/master/src/js/component.js#L239)
---
### init( tag, [options], [ready] )
> player's constructor function
##### PARAMETERS:
* __tag__ `Element` The original video tag used for configuring options
* __options__ `Object` _(OPTIONAL)_ Player options
* __ready__ `Function` _(OPTIONAL)_ Ready callback function
_defined in_: [src/js/player.js#L32](https://github.com/videojs/video.js/blob/master/src/js/player.js#L32)
---
### initChildren()
> Add and initialize default child components from options
>
> // when an instance of MyComponent is created, all children in options
> // will be added to the instance by their name strings and options
> MyComponent.prototype.options_.children = {
> myChildComponent: {
> myChildOption: true
> }
> }
_inherited from_: [src/js/component.js#L439](https://github.com/videojs/video.js/blob/master/src/js/component.js#L439)
---
### muted( [muted] )
> Get the current muted state, or turn mute on or off
>
> // get
> var isVolumeMuted = myPlayer.muted();
>
> // set
> myPlayer.muted(true); // mute the volume
##### PARAMETERS:
* __muted__ `Boolean` _(OPTIONAL)_ True to mute, false to unmute
##### RETURNS:
* `Boolean` True if mute is on, false if not, when getting
* `vjs.Player` self, when setting mute
_defined in_: [src/js/player.js#L792](https://github.com/videojs/video.js/blob/master/src/js/player.js#L792)
---
### name()
> Get the component's name. The name is often used to reference the component.
>
> var name = myComponent.name();
##### RETURNS:
* `String`
_inherited from_: [src/js/component.js#L258](https://github.com/videojs/video.js/blob/master/src/js/component.js#L258)
---
### off( [type], [fn] )
> Remove an event listener from the component's element
>
> myComponent.off("eventName", myFunc);
##### PARAMETERS:
* __type__ `String` _(OPTIONAL)_ Event type. Without type it will remove all listeners.
* __fn__ `Function` _(OPTIONAL)_ Event listener. Without fn it will remove all listeners for a type.
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L510](https://github.com/videojs/video.js/blob/master/src/js/component.js#L510)
---
### on( type, fn )
> Add an event listener to this component's element
>
> var myFunc = function(){
> var myPlayer = this;
> // Do something when the event is fired
> };
>
> myPlayer.on("eventName", myFunc);
>
> The context will be the component.
##### PARAMETERS:
* __type__ `String` The event type e.g. 'click'
* __fn__ `Function` The event listener
##### RETURNS:
* `vjs.Component` self
_inherited from_: [src/js/component.js#L496](https://github.com/videojs/video.js/blob/master/src/js/component.js#L496)
---
### one( type, fn )
> Add an event listener to be triggered only once and then removed
##### PARAMETERS:
* __type__ `String` Event type
* __fn__ `Function` Event listener
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L522](https://github.com/videojs/video.js/blob/master/src/js/component.js#L522)
---
### options( obj )
> Deep merge of options objects
>
> Whenever a property is an object on both options objects
> the two properties will be merged using vjs.obj.deepMerge.
>
> This is used for merging options for child components. We
> want it to be easy to override individual options on a child
> component without having to rewrite all the other default options.
>
> Parent.prototype.options_ = {
> children: {
> 'childOne': { 'foo': 'bar', 'asdf': 'fdsa' },
> 'childTwo': {},
> 'childThree': {}
> }
> }
> newOptions = {
> children: {
> 'childOne': { 'foo': 'baz', 'abc': '123' }
> 'childTwo': null,
> 'childFour': {}
> }
> }
>
> this.options(newOptions);
>
> RESULT
>
> {
> children: {
> 'childOne': { 'foo': 'baz', 'asdf': 'fdsa', 'abc': '123' },
> 'childTwo': null, // Disabled. Won't be initialized.
> 'childThree': {},
> 'childFour': {}
> }
> }
##### PARAMETERS:
* __obj__ `Object` Object whose values will be overwritten
##### RETURNS:
* `Object` NEW merged object. Does not return obj1.
_inherited from_: [src/js/component.js#L169](https://github.com/videojs/video.js/blob/master/src/js/component.js#L169)
---
### pause()
> Pause the video playback
>
> myPlayer.pause();
##### RETURNS:
* `vjs.Player` self
_defined in_: [src/js/player.js#L610](https://github.com/videojs/video.js/blob/master/src/js/player.js#L610)
---
### paused()
> Check if the player is paused
>
> var isPaused = myPlayer.paused();
> var isPlaying = !myPlayer.paused();
##### RETURNS:
* `Boolean` false if the media is currently playing, or true otherwise
_defined in_: [src/js/player.js#L623](https://github.com/videojs/video.js/blob/master/src/js/player.js#L623)
---
### play()
> start media playback
>
> myPlayer.play();
##### RETURNS:
* `vjs.Player` self
_defined in_: [src/js/player.js#L598](https://github.com/videojs/video.js/blob/master/src/js/player.js#L598)
---
### player()
> Return the component's player
##### RETURNS:
* `vjs.Player`
_inherited from_: [src/js/component.js#L116](https://github.com/videojs/video.js/blob/master/src/js/component.js#L116)
---
### poster( [src] )
> get or set the poster image source url
>
> ##### EXAMPLE:
>
> // getting
> var currentPoster = myPlayer.poster();
>
> // setting
> myPlayer.poster('http://example.com/myImage.jpg');
##### PARAMETERS:
* __src__ `String` _(OPTIONAL)_ Poster image source URL
##### RETURNS:
* `String` poster URL when getting
* `vjs.Player` self when setting
_defined in_: [src/js/player.js#L1095](https://github.com/videojs/video.js/blob/master/src/js/player.js#L1095)
---
### ready( fn )
> Bind a listener to the component's ready state
>
> Different from event listeners in that if the ready event has already happend
> it will trigger the function immediately.
##### PARAMETERS:
* __fn__ `Function` Ready listener
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L581](https://github.com/videojs/video.js/blob/master/src/js/component.js#L581)
---
### removeChild( component )
> Remove a child component from this component's list of children, and the
> child component's element from this component's element
##### PARAMETERS:
* __component__ `vjs.Component` Component to remove
_inherited from_: [src/js/component.js#L401](https://github.com/videojs/video.js/blob/master/src/js/component.js#L401)
---
### removeClass( classToRemove )
> Remove a CSS class name from the component's element
##### PARAMETERS:
* __classToRemove__ `String` Classname to remove
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L639](https://github.com/videojs/video.js/blob/master/src/js/component.js#L639)
---
### requestFullScreen()
> Increase the size of the video to full screen
>
> myPlayer.requestFullScreen();
>
> In some browsers, full screen is not supported natively, so it enters
> "full window mode", where the video fills the browser window.
> In browsers and devices that support native full screen, sometimes the
> browser's default controls will be shown, and not the Video.js custom skin.
> This includes most mobile devices (iOS, Android) and older versions of
> Safari.
##### RETURNS:
* `vjs.Player` self
_defined in_: [src/js/player.js#L817](https://github.com/videojs/video.js/blob/master/src/js/player.js#L817)
---
### show()
> Show the component element if hidden
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L649](https://github.com/videojs/video.js/blob/master/src/js/component.js#L649)
---
### src( [source] )
> The source function updates the video source
>
> There are three types of variables you can pass as the argument.
>
> **URL String**: A URL to the the video file. Use this method if you are sure
> the current playback technology (HTML5/Flash) can support the source you
> provide. Currently only MP4 files can be used in both HTML5 and Flash.
>
> myPlayer.src("http://www.example.com/path/to/video.mp4");
>
> **Source Object (or element):** A javascript object containing information
> about the source file. Use this method if you want the player to determine if
> it can support the file using the type information.
>
> myPlayer.src({ type: "video/mp4", src: "http://www.example.com/path/to/video.mp4" });
>
> **Array of Source Objects:** To provide multiple versions of the source so
> that it can be played using HTML5 across browsers you can use an array of
> source objects. Video.js will detect which version is supported and load that
> file.
>
> myPlayer.src([
> { type: "video/mp4", src: "http://www.example.com/path/to/video.mp4" },
> { type: "video/webm", src: "http://www.example.com/path/to/video.webm" },
> { type: "video/ogg", src: "http://www.example.com/path/to/video.ogv" }
> ]);
##### PARAMETERS:
* __source__ `String|Object|Array` _(OPTIONAL)_ The source URL, object, or array of sources
##### RETURNS:
* `vjs.Player` self
_defined in_: [src/js/player.js#L979](https://github.com/videojs/video.js/blob/master/src/js/player.js#L979)
---
### trigger( type, event )
> Trigger an event on an element
>
> myComponent.trigger('eventName');
##### PARAMETERS:
* __type__ `String` The event type to trigger, e.g. 'click'
* __event__ `Event|Object` The event object to be passed to the listener
##### RETURNS:
* `vjs.Component` self
_inherited from_: [src/js/component.js#L536](https://github.com/videojs/video.js/blob/master/src/js/component.js#L536)
---
### triggerReady()
> Trigger the ready listeners
##### RETURNS:
* `vjs.Component`
_inherited from_: [src/js/component.js#L600](https://github.com/videojs/video.js/blob/master/src/js/component.js#L600)
---
### volume( percentAsDecimal )
> Get or set the current volume of the media
>
> // get
> var howLoudIsIt = myPlayer.volume();
>
> // set
> myPlayer.volume(0.5); // Set volume to half
>
> 0 is off (muted), 1.0 is all the way up, 0.5 is half way.
##### PARAMETERS:
* __percentAsDecimal__ `Number` The new volume as a decimal percent
##### RETURNS:
* `Number` The current volume, when getting
* `vjs.Player` self, when setting
_defined in_: [src/js/player.js#L762](https://github.com/videojs/video.js/blob/master/src/js/player.js#L762)
---
### width( [num], skipListeners )
> Set or get the width of the component (CSS values)
>
> Video tag width/height only work in pixels. No percents.
> But allowing limited percents use. e.g. width() will return number+%, not computed width
##### PARAMETERS:
* __num__ `Number|String` _(OPTIONAL)_ Optional width number
* __skipListeners__ `Boolean` Skip the 'resize' event trigger
##### RETURNS:
* `vjs.Component` Returns 'this' if width was set
* `Number|String` Returns the width if nothing was set
_inherited from_: [src/js/component.js#L707](https://github.com/videojs/video.js/blob/master/src/js/component.js#L707)
---
## EVENTS
### durationchange `EVENT`
> Fired when the duration of the media resource is first known or changed
_defined in_: [src/js/player.js#L498](https://github.com/videojs/video.js/blob/master/src/js/player.js#L498)
---
### ended `EVENT`
> Fired when the end of the media resource is reached (currentTime == duration)
_defined in_: [src/js/player.js#L487](https://github.com/videojs/video.js/blob/master/src/js/player.js#L487)
---
### error `EVENT`
> Fired when there is an error in playback
##### PARAMETERS:
* __e__
_defined in_: [src/js/player.js#L525](https://github.com/videojs/video.js/blob/master/src/js/player.js#L525)
---
### firstplay `EVENT`
> Fired the first time a video is played
>
> Not part of the HLS spec, and we're not sure if this is the best
> implementation yet, so use sparingly. If you don't have a reason to
> prevent playback, use `myPlayer.one('play');` instead.
_defined in_: [src/js/player.js#L444](https://github.com/videojs/video.js/blob/master/src/js/player.js#L444)
---
### fullscreenchange `EVENT`
> Fired when the player switches in or out of fullscreen mode
_defined in_: [src/js/player.js#L513](https://github.com/videojs/video.js/blob/master/src/js/player.js#L513)
---
### loadedalldata `EVENT`
> Fired when the player has finished downloading the source data
_defined in_: [src/js/player.js#L424](https://github.com/videojs/video.js/blob/master/src/js/player.js#L424)
---
### loadeddata `EVENT`
> Fired when the player has downloaded data at the current playback position
_defined in_: [src/js/player.js#L418](https://github.com/videojs/video.js/blob/master/src/js/player.js#L418)
---
### loadedmetadata `EVENT`
> Fired when the player has initial duration and dimension information
_defined in_: [src/js/player.js#L412](https://github.com/videojs/video.js/blob/master/src/js/player.js#L412)
---
### loadstart `EVENT`
> Fired when the user agent begins looking for media data
_defined in_: [src/js/player.js#L406](https://github.com/videojs/video.js/blob/master/src/js/player.js#L406)
---
### pause `EVENT`
> Fired whenever the media has been paused
_defined in_: [src/js/player.js#L458](https://github.com/videojs/video.js/blob/master/src/js/player.js#L458)
---
### play `EVENT`
> Fired whenever the media begins or resumes playback
_defined in_: [src/js/player.js#L430](https://github.com/videojs/video.js/blob/master/src/js/player.js#L430)
---
### progress `EVENT`
> Fired while the user agent is downloading media data
_defined in_: [src/js/player.js#L476](https://github.com/videojs/video.js/blob/master/src/js/player.js#L476)
---
### resize `EVENT`
> Fired when the width and/or height of the component changes
_inherited from_: [src/js/component.js#L809](https://github.com/videojs/video.js/blob/master/src/js/component.js#L809)
---
### timeupdate `EVENT`
> Fired when the current playback position has changed
>
> During playback this is fired every 15-250 milliseconds, depnding on the
> playback technology in use.
_defined in_: [src/js/player.js#L470](https://github.com/videojs/video.js/blob/master/src/js/player.js#L470)
---
### volumechange `EVENT`
> Fired when the volume changes
_defined in_: [src/js/player.js#L507](https://github.com/videojs/video.js/blob/master/src/js/player.js#L507)
---
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