Extends

• Tech

Members

featuresFullscreenResize :boolean

tech/html5.js, line 999

Boolean indicating whether the HTML5 tech currently supports automatic media resize when going into fullscreen.

Overrides:

• Tech#featuresFullscreenResize

Default Value:

• true

featuresNativeAudioTracks :boolean

tech/html5.js, line 1040

Boolean indicating whether the HTML5 tech currently supports native AudioTracks.

Default Value:

• Html5.supportsNativeAudioTracks

featuresNativeTextTracks :boolean

tech/html5.js, line 1024

Boolean indicating whether the HTML5 tech currently supports native TextTracks.

Overrides:

• Tech#featuresNativeTextTracks

Default Value:

• Html5.supportsNativeTextTracks

featuresNativeVideoTracks :boolean

tech/html5.js, line 1032

Boolean indicating whether the HTML5 tech currently supports native VideoTracks.

Default Value:

• Html5.supportsNativeVideoTracks

featuresPlaybackRate :boolean

tech/html5.js, line 978

Boolean indicating whether the Tech supports changing the speed at which the media plays. Examples:

• Set player to play 2x (twice) as fast
• Set player to play 0.5x (half) as fast

Overrides:

• Tech#featuresPlaybackRate

Default Value:

• Html5.canControlPlaybackRate

featuresProgressEvents :boolean

tech/html5.js, line 1008

Boolean indicating whether the HTML5 tech currently supports the progress event. If this is false, manual progress events will be triggred instead.

Overrides:

• Tech#featuresProgressEvents

Default Value:

• true

featuresTimeupdateEvents

tech/html5.js, line 1016

Boolean indicating whether the HTML5 tech currently supports the timeupdate event. If this is false, manual timeupdate events will be triggred instead.

Overrides:

• Tech#featuresTimeupdateEvents

Default Value:

• true

featuresVolumeControl :boolean

tech/html5.js, line 967

Boolean indicating whether the Tech supports volume control.

Overrides:

• Tech#featuresVolumeControl

Default Value:

• Html5.canControlVolume

movingMediaElementInDOM :boolean

tech/html5.js, line 988

Boolean indicating whether the HTML5 tech currently supports the media element moving in the DOM. iOS breaks if you move the media element, so this is set this to false there. Everywhere else this should be true.

static nativeSourceHandler

tech/html5.js, line 1728

Native source handler for Html5, simply passes the source to the media element.

Methods

addRemoteTextTrack(options, manualCleanupopt) → {HTMLTrackElement}

tech/html5.js, line 723

Creates a remote text track object and returns an html track element.

Parameters:

Name	Type	Attributes	Default	Description
options	Object			The object should contain values for kind, language, label, and src (location of the WebVTT file)
manualCleanup	Boolean	<optional>	true	if set to false, the TextTrack will be automatically removed from the video element whenever the source changes

Returns:

HTMLTrackElement -

An Html Track Element. This can be an emulated HTMLTrackElement or a native one.

Overrides:

• Tech#addRemoteTextTrack

Deprecated:

• The default value of the "manualCleanup" parameter will default to "false" in upcoming versions of Video.js

addTextTrack(kind, labelopt, languageopt) → {TextTrack}

tech/html5.js, line 647

Create and returns a remote TextTrack object.

Parameters:

Name	Type	Attributes	Description
kind	string		TextTrack kind (subtitles, captions, descriptions, chapters, or metadata)
label	string	<optional>	Label to identify the text track
language	string	<optional>	Two letter language abbreviation

Returns:

TextTrack -

The TextTrack that gets created.

Overrides:

• Tech#addTextTrack

addWebVttScript_()

tech/tech.js, line 511

Emulate TextTracks using vtt.js if necessary

Fires:

• Tech#event:vttjsloaded
• Tech#event:vttjserror

Inherited From:

• Tech#addWebVttScript_

audioTracks() → {AudioTrackList}

tech/tech.js, line 893

Get the AudioTrackList

Returns:

AudioTrackList

Inherited From:

• Tech#audioTracks

autoplay() → {boolean}

tech/html5.js, line 1174

Get the value of autoplay from the media element. autoplay indicates that the media should start to play as soon as the page is ready.

Returns:

boolean -

• The value of autoplay from the media element.

    - True indicates that the media should start as soon as the page loads.
    - False indicates that the media should not start as soon as the page loads.

See:

• Spec

buffered() → {TimeRange}

tech/html5.js, line 1354

Get the value of buffered from the media element. buffered is a TimeRange object that represents the parts of the media that are already downloaded and available for playback.

Returns:

TimeRange -

The value of buffered from the media element.

Overrides:

• Tech#buffered

See:

• Spec

bufferedPercent() → {number}

tech/tech.js, line 255

Get the percentage of the current video that is currently buffered.

Returns:

number -

A number from 0 to 1 that represents the decimal percentage of the video that is buffered.

Inherited From:

• Tech#bufferedPercent

cleanupAutoTextTracks()

tech/tech.js, line 385

Remove any TextTracks added via addRemoteTextTrack that are flagged for automatic garbage collection

Inherited From:

• Tech#cleanupAutoTextTracks

clearTracks(types)

tech/tech.js, line 363

Clear out a single TrackList or an array of TrackLists given their names.

Note: Techs without source handlers should call this between sources for video & audio tracks. You don't want to use them between tracks!

Parameters:

Name	Type	Description
types	Array.<string> | string	TrackList names to clear, valid names are video, audio, and text.

Inherited From:

• Tech#clearTracks

controls() → {boolean}

tech/html5.js, line 1188

Get the value of controls from the media element. controls indicates whether the native media controls should be shown or hidden.

Returns:

boolean -

• The value of controls from the media element.

    - True indicates that native controls should be showing.
    - False indicates that native controls should be hidden.

See:

• Spec

createEl() → {Element}

tech/html5.js, line 262

Create the Html5 Tech's DOM element.

Returns:

Element -

The element that gets created.

createRemoteTextTrack(options) → {HTMLTrackElement}

tech/html5.js, line 683

Creates either native TextTrack or an emulated TextTrack depending on the value of featuresNativeTextTracks

Parameters:

Name	Type	Description
options	Object	The object should contain the options to intialize the TextTrack with. Properties Name Type Attributes Description kind string <optional> TextTrack kind (subtitles, captions, descriptions, chapters, or metadata). label string <optional> Label to identify the text track language string <optional> Two letter language abbreviation. default boolean <optional> Default this track to on. id string <optional> The internal id to assign this track. src string <optional> A source url for the track.

Returns:

HTMLTrackElement -

The track element that gets created.

Overrides:

• Tech#createRemoteTextTrack

currentSrc() → {Tech~SourceObject}

tech/html5.js, line 615

Get the current source on the HTML5 Tech. Falls back to returning the source from the HTML5 media element.

Returns:

Tech~SourceObject -

The current source object from the HTML5 tech. With a fallback to the elements source.

currentTime() → {number}

tech/html5.js, line 1342

Get the value of currentTime from the media element. currentTime indicates the current second that the media is at in playback.

Returns:

number -

The value of currentTime from the media element.

See:

• Spec

defaultMuted() → {boolean}

tech/html5.js, line 1158

Get the value of defaultMuted from the media element. defaultMuted indicates whether the media should start muted or not. Only changes the default state of the media. muted and defaultMuted can have different values. Html5#muted indicates the current state.

Returns:

boolean -

• The value of defaultMuted from the media element.

    - True indicates that the media should start muted.
    - False indicates that the media should not start muted

See:

• Spec

defaultPlaybackRate() → {number}

tech/html5.js, line 1482

Get the value of defaultPlaybackRate from the media element. defaultPlaybackRate indicates the rate at which the media is currently playing back. This value will not indicate the current playbackRate after playback has started, use Html5#playbackRate for that.

Examples:

• if defaultPlaybackRate is set to 2, media will play twice as fast.
• if defaultPlaybackRate is set to 0.5, media will play half as fast.

Returns:

number -

The value of defaultPlaybackRate from the media element. A number indicating the current playback speed of the media, where 1 is normal speed.

See:

• Spec

dispose()

tech/html5.js, line 114

Dispose of HTML5 media element and remove all tracks.

Overrides:

• Tech#dispose

duration() → {number}

tech/html5.js, line 445

Get the current duration of the HTML5 media element.

Returns:

number -

The duration of the media or 0 if there is no duration.

emulateTextTracks()

tech/tech.js, line 570

Emulate texttracks

Inherited From:

• Tech#emulateTextTracks

ended() → {boolean}

tech/html5.js, line 1453

Get the value of ended from the media element. ended indicates whether the media has reached the end or not.

Returns:

boolean -

• The value of ended from the media element.

    - True indicates that the media has ended.
    - False indicates that the media has not ended.

See:

• Spec

enterFullScreen()

tech/html5.js, line 551

Request that the HTML5 Tech enter fullscreen.

error() → {MediaError|null}

tech/html5.js, line 1412

Get the value of the error from the media element. error indicates any MediaError that may have occured during playback. If error returns null there is no current error.

Returns:

MediaError | null -

The value of error from the media element. Will be MediaError if there is a current error and null otherwise.

Overrides:

• Tech#error

See:

• Spec

exitFullScreen()

tech/html5.js, line 573

Request that the HTML5 Tech exit fullscreen.

getVideoPlaybackQuality() → {Object}

tech/html5.js, line 764

Gets available media playback quality metrics as specified by the W3C's Media Playback Quality API.

Returns:

Object -

An object with supported media playback quality metrics

Overrides:

• Tech#getVideoPlaybackQuality

See:

• Spec

handleLateInit_() → {undefined}

tech/html5.js, line 344

This will be triggered if the loadstart event has already fired, before videojs was ready. Two known examples of when this can happen are:

1. If we're loading the playback object after it has started loading
2. The media is already playing the (often with autoplay on) then

This function will fire another loadstart so that videojs can catchup.

Fires:

• Tech#event:loadstart

Returns:

undefined -

returns nothing.

height() → {number}

tech/html5.js, line 490

Get the current height of the HTML5 media element.

Returns:

number -

The heigth of the HTML5 media element.

initTrackListeners()

tech/tech.js, line 466

Turn on listeners for VideoTrackList, {AudioTrackList, and TextTrackList events.

This adds EventTarget~EventListeners for addtrack, and removetrack.

Fires:

• Tech#event:audiotrackchange
• Tech#event:videotrackchange
• Tech#event:texttrackchange

Inherited From:

• Tech#initTrackListeners

load()

tech/html5.js, line 1694

A wrapper around the media elements load function. This will call the HTML5s media element load function.

See:

• Spec

loop() → {boolean}

tech/html5.js, line 1202

Get the value of loop from the media element. loop indicates that the media should return to the start of the media and continue playing once it reaches the end.

Returns:

boolean -

• The value of loop from the media element.

    - True indicates that playback should seek back to start once
      the end of a media is reached.
    - False indicates that playback should not loop back to the start when the
      end of the media is reached.

See:

• Spec

manualProgressOff()

tech/tech.js, line 179

Turn off the polyfill for progress events that was created in Tech#manualProgressOn

Inherited From:

• Tech#manualProgressOff

manualProgressOn()

tech/tech.js, line 166

Polyfill the progress event for browsers that don't support it natively.

Inherited From:

• Tech#manualProgressOn

See:

• Tech#trackProgress

manualTimeUpdatesOff()

tech/tech.js, line 285

Turn off the polyfill for timeupdate events that was created in Tech#manualTimeUpdatesOn

Inherited From:

• Tech#manualTimeUpdatesOff

manualTimeUpdatesOn()

tech/tech.js, line 274

Polyfill the timeupdate event for browsers that don't support it.

Inherited From:

• Tech#manualTimeUpdatesOn

See:

• Tech#trackCurrentTime

muted() → {boolean}

tech/html5.js, line 1144

Get the value of muted from the media element. muted indicates that the volume for the media should be set to silent. This does not actually change the volume attribute.

Returns:

boolean -

• True if the value of volume should be ignored and the audio set to silent.

    - False if the value of `volume` should be used.

See:

• Spec

networkState() → {number}

tech/html5.js, line 1513

Get the value of networkState from the media element. networkState indicates the current network state. It returns an enumeration from the following list:

• 0: NETWORK_EMPTY
• 1: NEWORK_IDLE
• 2: NETWORK_LOADING
• 3: NETWORK_NO_SOURCE

Returns:

number -

The value of networkState from the media element. This will be a number from the list in the description.

See:

• https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate

onDurationChange(event)

tech/tech.js, line 233

Update our internal duration on a durationchange event by calling Tech#duration.

Parameters:

Name	Type	Description
event	EventTarget~Event	The durationchange event that caused this to run.

Listens to Events:

• Tech#event:durationchange

Inherited From:

• Tech#onDurationChange

pause()

tech/html5.js, line 1685

A wrapper around the media elements pause function. This will call the HTML5 media elements pause function.

See:

• Spec

paused() → {boolean}

tech/html5.js, line 1330

Get the value of paused from the media element. paused indicates whether the media element is currently paused or not.

Returns:

boolean -

The value of paused from the media element.

See:

• Spec

play()

tech/html5.js, line 1703

A wrapper around the media elements play function. This will call the HTML5s media element play function.

See:

• Spec

playbackRate() → {number}

tech/html5.js, line 1467

Get the value of playbackRate from the media element. playbackRate indicates the rate at which the media is currently playing back. Examples:

• if playbackRate is set to 2, media will play twice as fast.
• if playbackRate is set to 0.5, media will play half as fast.

Returns:

number -

The value of playbackRate from the media element. A number indicating the current playback speed of the media, where 1 is normal speed.

See:

• Spec

played() → {TimeRange}

tech/html5.js, line 1500

Get the value of played from the media element. played returns a TimeRange object representing points in the media timeline that have been played.

Returns:

TimeRange -

The value of played from the media element. A TimeRange object indicating the ranges of time that have been played.

Overrides:

• Tech#played

See:

• Spec

playsinline() → {boolean}

tech/html5.js, line 1219

Get the value of playsinline from the media element. playsinline indicates to the browser that non-fullscreen playback is preferred when fullscreen playback is the native default, such as in iOS Safari.

Returns:

boolean -

• The value of playsinline from the media element.

    - True indicates that the media should play inline.
    - False indicates that the media should not play inline.

Overrides:

• Tech#playsinline

See:

• Spec

poster() → {string}

tech/html5.js, line 1380

Get the value of poster from the media element. poster indicates that the url of an image file that can/will be shown when no media data is available.

Returns:

string -

The value of poster from the media element. Value will be a url to an image.

See:

• Spec

preload() → {string}

tech/html5.js, line 1393

Get the value of preload from the media element. preload indicates what should download before the media is interacted with. It can have the following values:

• none: nothing should be downloaded
• metadata: poster and the first few frames of the media may be downloaded to get media dimensions and other metadata
• auto: allow the media and metadata for the media to be downloaded before interaction

Returns:

string -

The value of preload from the media element. Will be 'none', 'metadata', or 'auto'.

See:

• Spec

readyState() → {number}

tech/html5.js, line 1530

Get the value of readyState from the media element. readyState indicates the current state of the media element. It returns an enumeration from the following list:

• 0: HAVE_NOTHING
• 1: HAVE_METADATA
• 2: HAVE_CURRENT_DATA
• 3: HAVE_FUTURE_DATA
• 4: HAVE_ENOUGH_DATA

Returns:

number -

The value of readyState from the media element. This will be a number from the list in the description.

See:

• https://www.w3.org/TR/html5/embedded-content-0.html#ready-states

remoteTextTrackEls() → {HtmlTrackElementList}

tech/tech.js, line 914

Get the remote element HtmlTrackElementList

Returns:

HtmlTrackElementList

Inherited From:

• Tech#remoteTextTrackEls

remoteTextTracks() → {TextTrackList}

tech/tech.js, line 907

Get the remote element TextTrackList

Returns:

TextTrackList

Inherited From:

• Tech#remoteTextTracks

removeRemoteTextTrack(track)

tech/html5.js, line 739

Remove remote TextTrack from TextTrackList object

Parameters:

Name	Type	Description
track	TextTrack	TextTrack object to remove

Overrides:

• Tech#removeRemoteTextTrack

reset()

tech/html5.js, line 603

Reset the tech by removing all sources and then calling Html5.resetMediaElement.

Overrides:

• Tech#reset

seekable() → {TimeRange}

tech/html5.js, line 1440

Get the value of seekable from the media element. seekable returns a TimeRange object indicating ranges of time that can currently be seeked to.

Returns:

TimeRange -

The value of seekable from the media element. A TimeRange object indicating the current ranges of time that can be seeked to.

See:

• Spec

seeking() → {boolean}

tech/html5.js, line 1426

Get the value of seeking from the media element. seeking indicates whether the media is currently seeking to a new position or not.

Returns:

boolean -

• The value of seeking from the media element.

    - True indicates that the media is currently seeking to a new position.
    - Flase indicates that the media is not seeking to a new position at this time.

See:

• Spec

setAutoplay(autoplay)

tech/html5.js, line 1270

Set the value of autoplay on the media element. autoplay indicates that the media should start to play as soon as the page is ready.

Parameters:

Name	Type	Description
autoplay	boolean	True indicates that the media should start as soon as the page loads. - False indicates that the media should not start as soon as the page loads.

See:

• Spec

setControls(val)

tech/html5.js, line 628

Set controls attribute for the HTML5 media Element.

Parameters:

Name	Type	Description
val	string	Value to set the controls attribute to

setCurrentTime(seconds)

tech/html5.js, line 430

Set current time for the HTML5 tech.

Parameters:

Name	Type	Description
seconds	number	Set the current time of the media to this.

Overrides:

• Tech#setCurrentTime

setDefaultMuted(defaultMuted)

tech/html5.js, line 1257

Set the value of defaultMuted on the media element. defaultMuted indicates that the current audio level should be silent, but will only effect the muted level on intial playback..

Parameters:

Name	Type	Description
defaultMuted	boolean	True if the audio should be set to silent - False otherwise

See:

• Spec

setDefaultPlaybackRate() → {number}

tech/html5.js, line 1657

Set the value of defaultPlaybackRate on the media element. defaultPlaybackRate indicates the rate at which the media should play back upon initial startup. Changing this value after a video has started will do nothing. Instead you should used Html5#setPlaybackRate.

Example Values:

• if playbackRate is set to 2, media will play twice as fast.
• if playbackRate is set to 0.5, media will play half as fast.

Returns:

number -

The value of defaultPlaybackRate from the media element. A number indicating the current playback speed of the media, where 1 is normal speed.

See:

• Spec

setLoop(loop)

tech/html5.js, line 1283

Set the value of loop on the media element. loop indicates that the media should return to the start of the media and continue playing once it reaches the end.

Parameters:

Name	Type	Description
loop	boolean	True indicates that playback should seek back to start once the end of a media is reached. - False indicates that playback should not loop back to the start when the end of the media is reached.

See:

• Spec

setMuted(muted)

tech/html5.js, line 1244

Set the value of muted on the media element. muted indicates that the current audio level should be silent.

Parameters:

Name	Type	Description
muted	boolean	True if the audio should be set to silent - False otherwise

See:

• Spec

setPlaybackRate() → {number}

tech/html5.js, line 1642

Set the value of playbackRate on the media element. playbackRate indicates the rate at which the media should play back. Examples:

• if playbackRate is set to 2, media will play twice as fast.
• if playbackRate is set to 0.5, media will play half as fast.

Returns:

number -

The value of playbackRate from the media element. A number indicating the current playback speed of the media, where 1 is normal speed.

See:

• Spec

setPlaysinline(playsinline)

tech/html5.js, line 1299

Set the value of playsinline from the media element. playsinline indicates to the browser that non-fullscreen playback is preferred when fullscreen playback is the native default, such as in iOS Safari.

Parameters:

Name	Type	Description
playsinline	boolean	True indicates that the media should play inline. - False indicates that the media should not play inline.

Overrides:

• Tech#setPlaysinline

See:

• Spec

setPoster(poster)

tech/html5.js, line 1610

Set the value of poster on the media element. poster is the url to an image file that can/will be shown when no media data is available.

Parameters:

Name	Type	Description
poster	string	The url to an image that should be used as the poster for the media element.

Overrides:

• Tech#setPoster

See:

• Spec

setPreload(preload)

tech/html5.js, line 1623

Set the value of preload on the media element. preload indicates what should download before the media is interacted with. It can have the following values:

• none: nothing should be downloaded
• metadata: poster and the first few frames of the media may be downloaded to get media dimensions and other metadata
• auto: allow the media and metadata for the media to be downloaded before interaction

Parameters:

Name	Type	Description
preload	string	The value of preload to set on the media element. Must be 'none', 'metadata', or 'auto'.

See:

• Spec

setSrc(src)

tech/html5.js, line 1598

Set the value of src on the media element. src indicates the current Tech~SourceObject for the media.

Parameters:

Name	Type	Description
src	Tech~SourceObject	The source object to set as the current source.

See:

• Spec

setVolume(percentAsDecimal)

tech/html5.js, line 1585

Set the value of volume on the media element. volume indicates the current audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and so on.

Parameters:

Name	Type	Description
percentAsDecimal	number	The volume percent as a decimal. Valid range is from 0-1.

See:

• [Spec]Spec

src(srcopt) → {Tech~SourceObject|undefined}

tech/html5.js, line 590

A getter/setter for the Html5 Tech's source object.

Note: Please use Html5#setSource

Parameters:

Name	Type	Attributes	Description
src	Tech~SourceObject	<optional>	The source object you want to set on the HTML5 techs element.

Returns:

Tech~SourceObject | undefined -

• The current source object when a source is not passed in.

    - undefined when setting

Deprecated:

• Since version 5.

stopTrackingCurrentTime()

tech/tech.js, line 322

Stop the interval function created in Tech#trackCurrentTime so that the timeupdate event is no longer triggered.

Listens to Events:

• {Tech#event:pause}

Inherited From:

• Tech#stopTrackingCurrentTime

stopTrackingProgress()

tech/tech.js, line 265

Turn off the polyfill for progress events that was created in Tech#manualProgressOn Stop manually tracking progress events by clearing the interval that was set in Tech#trackProgress.

Inherited From:

• Tech#stopTrackingProgress

supportsFullScreen() → {boolean}

tech/html5.js, line 536

Check if fullscreen is supported on the current playback device.

Returns:

boolean -

• True if fullscreen is supported.

    - False if fullscreen is not supported.

textTracks() → {TextTrackList}

tech/tech.js, line 900

Get the TextTrackList

Returns:

TextTrackList

Inherited From:

• Tech#textTracks

trackCurrentTime()

tech/tech.js, line 299

Sets up an interval function to track current time and trigger timeupdate every 250 milliseconds.

Listens to Events:

• Tech#event:play

Inherited From:

• Tech#trackCurrentTime

trackProgress(event)

tech/tech.js, line 199

This is used to trigger a progress event when the buffered percent changes. It sets an interval function that will be called every 500 milliseconds to check if the buffer end percent has changed.

This function is called by Tech#manualProgressOn

Parameters:

Name	Type	Description
event	EventTarget~Event	The ready event that caused this to run.

Fires:

• Tech#event:progress

Listens to Events:

• Tech#event:ready

Inherited From:

• Tech#trackProgress

videoHeight() → {number}

tech/html5.js, line 1562

Get the value of videoHeight from the video element. videoHeigth indicates the current height of the video in css pixels.

Returns:

number -

The value of videoHeight from the video element. This will be a number in css pixels.

See:

• [Spec] https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth

videoTracks() → {VideoTrackList}

tech/tech.js, line 886

Get the VideoTrackList

Returns:

VideoTrackList

Inherited From:

• Tech#videoTracks

videoWidth() → {number}

tech/html5.js, line 1549

Get the value of videoWidth from the video element. videoWidth indicates the current width of the video in css pixels.

Returns:

number -

The value of videoWidth from the video element. This will be a number in css pixels.

See:

• [Spec] https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth

volume() → {number}

tech/html5.js, line 1367

Get the value of volume from the media element. volume indicates the current playback volume of audio for a media. volume will be a value from 0 (silent) to 1 (loudest and default).

Returns:

number -

The value of volume from the media element. Value will be between 0-1.

See:

• [Spec]Spec

width() → {number}

tech/html5.js, line 480

Get the current width of the HTML5 media element.

Returns:

number -

The width of the HTML5 media element.

static canControlPlaybackRate() → {boolean}

tech/html5.js, line 879

Check if the playback rate can be changed in this browser/device.

Returns:

boolean -

• True if playback rate can be controlled

    - False otherwise

static canControlVolume() → {boolean}

tech/html5.js, line 860

Check if the volume can be changed in this browser/device. Volume cannot be changed in a lot of mobile devices. Specifically, it can't be changed from 1 on iOS.

Returns:

boolean -

• True if volume can be controlled

    - False otherwise

static canPlaySource(srcObj, options) → {string}

tech/html5.js, line 847

Check if the tech can support the given source

Parameters:

Name	Type	Description
srcObj	Object	The source object
options	Object	The options passed to the tech

Returns:

string -

'probably', 'maybe', or '' (empty string)

static canPlayType(type) → {string}

tech/html5.js, line 835

Check if the tech can support the given type

Parameters:

Name	Type	Description
type	string	The mimetype to check

Returns:

string -

'probably', 'maybe', or '' (empty string)

static isSupported() → {boolean}

tech/html5.js, line 817

Check if HTML5 media is supported by this browser/device.

Returns:

boolean -

• True if HTML5 media is supported.

    - False if HTML5 media is not supported.

static supportsNativeAudioTracks() → {boolean}

tech/html5.js, line 925

Check to see if native AudioTracks are supported by this browser/device

Returns:

boolean -

• True if native AudioTracks are supported.

   - False otherwise

static supportsNativeTextTracks() → {boolean}

tech/html5.js, line 903

Check to see if native TextTracks are supported by this browser/device.

Returns:

boolean -

• True if native TextTracks are supported.

    - False otherwise

static supportsNativeVideoTracks() → {boolean}

tech/html5.js, line 914

Check to see if native VideoTracks are supported by this browser/device

Returns:

boolean -

• True if native VideoTracks are supported.

   - False otherwise

Events

audiotrackchange

tech/tech.js, line 467

Triggered when tracks are added or removed on the Tech AudioTrackList

Type:

• EventTarget~Event

Inherited From:

• Tech#event:audiotrackchange

progress

tech/tech.js, line 207

See Player#progress

Type:

• EventTarget~Event

Inherited From:

• Tech#event:progress

texttrackchange

tech/tech.js, line 481

Triggered when tracks are added or removed on the Tech TextTrackList

Type:

• EventTarget~Event

Inherited From:

• Tech#event:texttrackchange

timeupdate

tech/tech.js, line 304

Triggered at an interval of 250ms to indicated that time is passing in the video.

Type:

• EventTarget~Event

Overrides:

• Tech#event:timeupdate

videotrackchange

tech/tech.js, line 474

Triggered when tracks are added or removed on the Tech VideoTrackList

Type:

• EventTarget~Event

Inherited From:

• Tech#event:videotrackchange

vttjsloaded

tech/tech.js, line 535

Fired when vtt.js is loaded.

Type:

• EventTarget~Event

Overrides:

• Tech#event:vttjsloaded