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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
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+---
+title: CanvasCaptureMediaStreamTrack
+slug: Web/API/CanvasCaptureMediaStreamTrack
+tags:
+ - CanvasCaptureMediaStreamTrack
+ - Experimental
+ - Frame Capture
+ - Interface
+ - Media
+ - Media Capture
+ - NeedsTranslation
+ - Reference
+ - TopicStub
+ - Web
+translation_of: Web/API/CanvasCaptureMediaStreamTrack
+---
+<div>{{APIRef("Media Capture and Streams")}}</div>
+
+<p><span class="seoSummary">The <strong><code>CanvasCaptureMediaStreamTrack</code></strong> interface represents the video track contained in a {{domxref("MediaStream")}} being generated from a {{HTMLElement("canvas")}} following a call to {{domxref("HTMLCanvasElement.captureStream()")}}.</span></p>
+
+<p>Part of the <a href="/en-US/docs/Web/API/Media_Streams_API">Media Capture and Streams API</a>.</p>
+
+<h2 id="Properties">Properties</h2>
+
+<p><em>This interface inherits the properties of its parent, {{domxref("MediaStreamTrack")}}.</em></p>
+
+<dl>
+ <dt>{{domxref("CanvasCaptureMediaStreamTrack.canvas")}} {{readonlyInline}}</dt>
+ <dd>Returns the {{domxref("HTMLCanvasElement")}} object whose surface is captured in real-time.</dd>
+</dl>
+
+<h2 id="Methods">Methods</h2>
+
+<p><em>This interface inherits the methods of its parent, {{domxref("MediaStreamTrack")}}.</em></p>
+
+<dl>
+ <dt>{{domxref("CanvasCaptureMediaStreamTrack.requestFrame()")}}</dt>
+ <dd>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 <code>frameRate</code> of 0 when calling {{domxref("HTMLCanvasElement.captureStream", "captureStream()")}}.</dd>
+</dl>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <thead>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>{{SpecName('Media Capture DOM Elements', '#the-canvascapturemediastreamtrack', 'CanvasCaptureMediaStreamTrack')}}</td>
+ <td>{{Spec2('Media Capture DOM Elements')}}</td>
+ <td>Initial definition</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<div>
+
+
+<p>{{Compat("api.CanvasCaptureMediaStreamTrack")}}</p>
+</div>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{domxref("HTMLCanvasElement.captureStream()")}} to begin capturing frames from a canvas</li>
+</ul>