TextTrack: sourceBuffer property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The read-only sourceBuffer property of the TextTrack interface returns the
SourceBuffer that created the track, or null if the track was not
created by a SourceBuffer or the SourceBuffer has been
removed from the MediaSource.sourceBuffers attribute of its parent
media source.
Value
A SourceBuffer or null.
Specifications
| Specification |
|---|
| Media Source Extensions™ # dom-texttrack-sourcebuffer |
Browser compatibility
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