下面的代码适用于我:

public vidOff() {

      let stream = this.video.nativeElement.srcObject;
      let tracks = stream.getTracks();

      tracks.forEach(function (track) {
          track.stop();
      });

      this.video.nativeElement.srcObject = null;
      this.video.nativeElement.stop();
  }

因为你需要音轨来关闭流，你需要流对象来获得音轨，我在Muaz Khan的回答的帮助下使用的代码如下:

if (navigator.getUserMedia) {
    navigator.getUserMedia(constraints, function (stream) {
        videoEl.src = stream;
        videoEl.play();
        document.getElementById('close').addEventListener('click', function () {
            stopStream(stream);
        });
    }, errBack);

function stopStream(stream) {
console.log('stop called');
stream.getVideoTracks().forEach(function (track) {
    track.stop();
});

当然，这将关闭所有活动的视频轨道。如果你有多个，你应该选择相应的。

假设我们有流式视频标签，id是video - <video id="video"></video>，那么我们应该有以下代码-

var videoEl = document.getElementById('video');
// now get the steam 
stream = videoEl.srcObject;
// now get all tracks
tracks = stream.getTracks();
// now close each track by having forEach loop
tracks.forEach(function(track) {
   // stopping every track
   track.stop();
});
// assign null to srcObject of video
videoEl.srcObject = null;

使用下列函数:

// stop both mic and camera
function stopBothVideoAndAudio(stream) {
    stream.getTracks().forEach(function(track) {
        if (track.readyState == 'live') {
            track.stop();
        }
    });
}

// stop only camera
function stopVideoOnly(stream) {
    stream.getTracks().forEach(function(track) {
        if (track.readyState == 'live' && track.kind === 'video') {
            track.stop();
        }
    });
}

// stop only mic
function stopAudioOnly(stream) {
    stream.getTracks().forEach(function(track) {
        if (track.readyState == 'live' && track.kind === 'audio') {
            track.stop();
        }
    });
}

如果.stop()已弃用，那么我认为我们不应该像@MuazKhan剂量那样重新添加它。这是一个原因，为什么东西被弃用，不应该再使用。只需创建一个辅助函数…这是一个更es6的版本

function stopStream (stream) {
    for (let track of stream.getTracks()) { 
        track.stop()
    }
}

当通过http连接时，在流上使用.stop()在chrome上工作。它在使用ssl (https)时不起作用。