如何停止/暂停网络摄像头

Question

我需要从具有本地视频的浏览器选项卡中关闭对网络摄像头的访问。我将其用于视频会议应用程序，需要暂停本地视频

    async getUserMedia() {
    if (navigator.getUserMedia) {
      try {
        let constraints;
          constraints = { 'video': true, 'audio': true };
          const stream = await navigator.mediaDevices.getUserMedia(constraints);
          this.localStream = stream;
          this.localVideo = document.getElementById('localVideo');
          this.localVideo.srcObject = stream;
      } catch (err) {
        console.error('Error getting user media.', err);
      }
    }

    else {
      console.log('Your browser does not support getUserMedia API');
    }
  }

我试过了，但它只是停止了视频，并且无法再次与用户联系

    export async function camera(e) {
  var stream = localVideo.srcObject;
  var tracks = stream.getTracks();

  for (var i = 0; i < tracks.length; i++) {
    var track = tracks[i];
    track.stop();
  }

  localVideo.srcObject = null;
}

Answer 1

使用

//for disable
  for (var i = 0; i < tracks.length; i++) {
    var track = tracks[i];
    track.enabled = false;
  }

//for enable

  for (var i = 0; i < tracks.length; i++) {
    var track = tracks[i];
    track.enabled = false;
  }