CanvasCaptureMediaStreamTrack

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

This interface inherits the properties of its parent, MediaStreamTrack .

CanvasCaptureMediaStreamTrack.canvas 只读: 返回 HTMLCanvasElement object whose surface is captured in real-time.

This interface inherits the methods of its parent, MediaStreamTrack .

CanvasCaptureMediaStreamTrack.requestFrame(): 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() .

规范	状态	注释
Media Capture from DOM Elements The definition of 'CanvasCaptureMediaStreamTrack' in that specification.	工作草案	初始定义

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`CanvasCaptureMediaStreamTrack`	Chrome 51	Edge ≤79	Firefox 41	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 51	Chrome Android 51	Firefox Android 41	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 5.0
`canvas`	Chrome 不支持 No	Edge 不支持 No	Firefox 41	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 41	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 不支持 No
`requestFrame`	Chrome 51	Edge ≤79	Firefox 41	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 5.0