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SourceBuffer.trackDefaults

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

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This page is not complete.

The trackDefaults property of the SourceBuffer interface specifies the default values to use if kind, label, and/or language information is not available in the initialization segment of the media to be appended to the SourceBuffer.

Syntax

var myTrackDefaults = sourceBuffer.trackDefaults;

sourceBuffer.trackDefaults = myTrackDefaultList;

Value

A TrackDefaultList object.

Errors

The following errors may be thrown when setting a new value for this property.

Error Explanation
InvalidStateError One or more of the SourceBuffer objects in MediaSource.sourceBuffers are being updated (i.e. their SourceBuffer.updating property is currently true), or this SourceBuffer has been removed from the MediaSource.

Example

TBD

Specifications

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support ? Not supported ? ? ?
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ?

Not supported

Not supported ? ? Not supported

See also

Document Tags and Contributors

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