This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The CanvasCaptureMediaStream.canvas read-only property returns the HTMLCanvasElement associated with the stream.
var elt = stream.canvas;
// 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;
| Specification | Status | Comment |
|---|---|---|
| Media Capture from DOM Elements The definition of 'HTMLCanvasElement' in that specification. | Editor's Draft | Initial definition |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | No support | 41 (41)[1] | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 41.0 (41)[1] | No support | No support | No support |
[1] Disabled by default; set the preference canvas.capturestream.enabled to true to activate.
HTMLCanvasElement.captureStream() to create a stream associated to a given canvas element.
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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/CanvasCaptureMediaStream/canvas