MediaSource: sourceBuffers property

Note: This feature is available in Dedicated Web Workers.

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

Value

A SourceBufferList.

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). The function getMediaSource(), which is not defined here, returns a MediaSource.

js
const mediaSource = getMediaSource();

function sourceOpen() {
  console.log(this.readyState); // open
  const sourceBuffer = mediaSource.addSourceBuffer(mimeCodec);
  fetchAB(assetURL, (buf) => {
    sourceBuffer.addEventListener("updateend", () => {
      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

Specification
Media Source Extensions™
# dom-mediasource-sourcebuffers

Browser compatibility

BCD tables only load in the browser

See also