TrackDefault

Draft
This page is not complete.

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage 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 specification changes.

The TrackDefault interface provides a SourceBuffer with kind, label, and language information for tracks that do not contain this information in the initialization segments of a media chunk.

A TrackDefault object is provided to a SourceBuffer object by setting its SourceBuffer.trackDefaults property.

Constructor

TrackDefault(): Constructs and returns a new TrackDefault object.

Properties

TrackDefault.type Read only: Returns the type of track that this SourceBuffer's media segment data relates to (i.e. audio, video, or text track.)
TrackDefault.byteStreamTrackID Read only: Returns the ID of the specific track that the SourceBuffer should apply to.
TrackDefault.language Read only: Returns the default language to use when an initialization segment does not contain language information for a new track.
TrackDefault.label Read only: Returns the default label to use when an initialization segment does not contain label information for a new track.
TrackDefault.kinds Read only: Returns the default kinds used when an initialization segment does not contain kind information for a new track.

Examples

TBD

Specifications

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

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	?	No support	?	?	?

Feature	Android	Firefox Mobile (Gecko)	Firefox OS (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	?	No support	No support	?	?	No support

Constructor

Properties

Examples

Specifications

Browser compatibility

See also

文档标签和贡献者