The CanvasCaptureMediaStreamTrack interface represents the video track contained in a MediaStream (en-US) being generated from a <canvas> following a call to HTMLCanvasElement.captureStream() (en-US).

Part of the Media Capture and Streams API.


This interface inherits the properties of its parent, MediaStreamTrack.

CanvasCaptureMediaStreamTrack.canvas Read only
Returns the HTMLCanvasElement object whose surface is captured in real-time.


This interface inherits the methods of its parent, MediaStreamTrack.

Manually forces a frame to be captured and sent to the stream. This lets applications that wish to specify the frame capture times directly do so, if they specified a frameRate of 0 when calling captureStream() (en-US).


Specification Status Comment
Media Capture from DOM Elements
The definition of 'CanvasCaptureMediaStreamTrack' in that specification.
Working Draft Initial definition

Browser compatibility

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See also