MediaSource.sourceBuffers

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The sourceBuffers read-only property of the MediaSource interface returns a SourceBufferList object containing the list of SourceBuffer objects associated with this MediaSource.

Syntax

var mySourceBuffers = mediaSource.sourceBuffers;

Value

A SourceBufferList.

Example

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.sourceBuffers); // will contain the source buffer that was added above
      video.play();
      //console.log(mediaSource.readyState); // ended
    });
    sourceBuffer.appendBuffer(buf);
  });
};

...

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
sourceBuffers
23
12
42
11
Only works on Windows 8+.
15
8
4.4.3
25
41
14
13
Exposed in Mobile Safari on iPad but not on iPhone.
1.5

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/sourceBuffers