MediaSource.activeSourceBuffers
The activeSourceBuffers
read-only property of the
MediaSource
interface returns a SourceBufferList
object
containing a subset of the SourceBuffer
objects contained within
sourceBuffers
— the list of objects
providing the selected video track, enabled audio tracks, and shown/hidden text tracks.
Value
A SourceBufferList
containing the SourceBuffer
objects
for each of the active tracks.
Examples
The following snippet is based on a simple example written by Nick Desaulniers (view the full demo live, or download the source for further investigation.)
function sourceOpen (_) {
//console.log(this.readyState); // open
var mediaSource = this;
var sourceBuffer = mediaSource.addSourceBuffer(mimeCodec);
fetchAB(assetURL, function (buf) {
sourceBuffer.addEventListener('updateend', function (_) {
mediaSource.endOfStream();
console.log(mediaSource.activeSourceBuffers);
// will contain the source buffer that was added above,
// as it is selected for playing in the video player
video.play();
//console.log(mediaSource.readyState); // ended
});
sourceBuffer.appendBuffer(buf);
});
};
...
Specifications
Specification |
---|
Media Source Extensions™ # dom-mediasource-activesourcebuffers |
Browser compatibility
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