The CanvasCaptureMediaStreamTrack canvas read-only property returns the HTMLCanvasElement from which frames are being captured.
Syntax
var elt = stream.canvas;
Value
An HTMLCanvasElement indicating the canvas which is the source of the frames being captured.
Example
// Find the canvas element to capture
var canvasElt = document.getElementsByTagName("canvas")[0];
// Get the stream
var stream = canvasElt.captureStream(25); // 25 FPS
// Do things to the stream
...
// Obtain the canvas associated with the stream
var canvas = stream.canvas;
Specifications
| Specification | Status | Comment |
|---|---|---|
| Media Capture from DOM Elements The definition of 'CanvasCaptureMediaStreamTrack.canvas' in that specification. |
Working Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
canvas | Chrome No support No | Edge No support No | Firefox
Full support
41
| IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android
Full support
41
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
See also
HTMLCanvasElement.captureStream()to create a stream to capture a given canvas element.<canvas>
