TrackDefault.TrackDefault()

Draft
This page is not complete.

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The TrackDefault() constructor of the TrackDefault interface constructs and returns a new TrackDefault object.

Syntax

var trackDefault = new TrackDefault(type, language, label, kinds, byteStreamTrackID);

Parameters

type
A DOMString specifying a media segment data type for the SourceBuffer to contain. Can be audio, video, or text.
language
A DOMString specifying a default language for the SourceBuffer to use when an initialization segment does not contain language information for a new track.
label
A DOMString specifying a default label for the SourceBuffer to use when an initialization segment does not contain label information for a new track.
kinds
An array (sequence) of DOMStrings specifying default kinds for the SourceBuffer to use when an initialization segment does not contain kind information for a new track.
byteStreamTrackID Optional
A DOMString specifying the ID of the specific track that the SourceBuffer should apply to. If not specified, this value will be an empty string and the SourceBuffer can contain any tracks of the specified type.

Errors

when this constructor is invoked, the following errors can occur:

Error Explanation
InvalidAccessError The supplied language is not a valid language code, e.g. en-US.
TypeError there are values specified in the kinds array that do not apply to the specified type.

Example

TBD

Specifications

Specification Status Comment
Media Source Extensions
The definition of 'TrackDefault' in that specification.
Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
ExperimentalNon-standard
Chrome ? Edge Full support YesFirefox No support NoIE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android No support NoOpera Android ? Safari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

See also

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills
Last updated by: fscholz,