MediaStreamTrackGenerator: writable property

{{APIRef("Insertable Streams for MediaStreamTrack API")}}{{SeeCompatTable}}{{Non-standard_Header}}

The writable property of the {{domxref("MediaStreamTrackGenerator")}} interface returns a {{domxref("WritableStream")}}. This allows the writing of media frames to the MediaStreamTrackGenerator. The frames will be audio or video. The type is dictated by the kind of MediaStreamTrackGenerator that was created.

Value

A {{domxref("WritableStream")}}.

Examples

In the following example video frames are transformed then written to the {{domxref("WritableStream")}} accessed with MediaStreamTrackGenerator.writable.

const trackProcessor = new MediaStreamTrackProcessor({ track: videoTrack });
const trackGenerator = new MediaStreamTrackGenerator({ kind: "video" });

/* */

trackProcessor.readable
  .pipeThrough(transformer)
  .pipeTo(trackGenerator.writable);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}