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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="/ja/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>
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