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
TrackDefaultobject.
Properties
TrackDefault.typeRead only- Returns the type of track that this
SourceBuffer's media segment data relates to (i.e. audio, video, or text track.) TrackDefault.byteStreamTrackIDRead only- Returns the ID of the specific track that the
SourceBuffershould apply to. TrackDefault.languageRead only- Returns the default language to use when an initialization segment does not contain language information for a new track.
TrackDefault.labelRead only- Returns the default label to use when an initialization segment does not contain label information for a new track.
TrackDefault.kindsRead 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. |
Browser compatibility
| 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 |