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• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

MediaStream() constructor returns a newly-created MediaStream , which serves as a collection of media tracks, each represented by a MediaStreamTrack 对象。 If any parameters are given, the specified tracks are added to the new stream. Otherwise, the stream has no tracks.

句法

newStream = new MediaStream();
newStream = new MediaStream(stream);
newStream = new MediaStream(tracks[]);
					

参数

stream

A different MediaStream object whose tracks are added to the newly-created stream automatically. The tracks are not removed from the original stream, so they're shared by the two streams.

tracks

数组 of MediaStreamTrack objects, one for each track to add to the stream.

返回值

A newly-created MediaStream object, either empty, or containing the tracks provided, if any.

规范

规范	状态	注释
媒体捕获和流 The definition of 'MediaStream' in that specification.	候选推荐

浏览器兼容性

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
MediaStream() 构造函数	Chrome 21	Edge ≤18	Firefox 44	IE No	Opera 42	Safari No	WebView Android 37	Chrome Android 25	Firefox Android 42	Opera Android No	Safari iOS No	Samsung Internet Android 6.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• MediaStream

元数据

• 最后修改： Mar 18, 2019

相关话题

1. Media Streams API
2. MediaStream
3. 构造函数

   1. MediaStream()
4. 特性

   1. active
   2. ended
   3. id
   4. onaddtrack
   5. onremovetrack
5. 方法

   1. addTrack()
   2. clone()
   3. getAudioTracks()
   4. getTrackById()
   5. getTracks()
   6. getVideoTracks()
6. 事件

   1. addtrack
   2. removetrack
7. 继承：

   1. EventTarget
8. Related pages for Media Capture and Streams

   1. AudioStreamTrack
   2. BlobEvent
   3. CanvasCaptureMediaStream
   4. ConstrainBoolean
   5. ConstrainDOMString
   6. ConstrainDouble
   7. ConstrainLong
   8. DoubleRange
   9. HTMLCanvasElement.captureStream()
   10. LongRange
   11. MediaDevices
   12. MediaStreamTrack
   13. MediaStreamTrackEvent
   14. MediaTrackCapabilities
   15. MediaTrackConstraints
   16. MediaTrackSettings
   17. MediaTrackSupportedConstraints
   18. Navigator.mediaDevices
   19. NavigatorUserMedia
   20. NavigatorUserMediaError
   21. VideoStreamTrack
   22. navigator.mediaDevices.getUserMedia()