问数着相机的两名参与者

EN

// routes.php
Route::get('room/{name}/participants/all', function ($name) {
    $twilioConfig = \Config::get('app.twilio.video');
    $twilioApiKey = $twilioConfig['apiKey'];
    $twilioApiSecret = $twilioConfig['apiSecret'];

    $client = new \Twilio\Rest\Client($twilioApiKey, $twilioApiSecret);
    $participants = $client->video->rooms($name)
            ->participants->read(["status" => "connected"]);

    $allParticipants = [];
    $count = count($participants);
    foreach ($participants as $participant) {
        $publishedTracks = $client->video->rooms($name)
            ->participants($participant->sid)
            ->publishedTracks->read();

        $videoOn = false;
        foreach ($publishedTracks as $publishedTrack) {
            if ('video' === $publishedTrack->kind && $publishedTrack->enabled) {
                $videoOn = true;
                break;
            }
        }
        
        $format = 'H:i:s';
        $allParticipants[$participant->sid] = [
            'identity' => $participant->identity,
            'created' => $participant->dateCreated->format($format),
            'updated' => $participant->dateUpdated->format($format),
            'started' => $participant->startTime->format($format),
            'videoOn' => $videoOn,
            'order' => $count--,
        ];
    }

    return \Illuminate\Support\Facades\Response::json($allParticipants);
});

[
  {
    "identity": "morcen1@example.com",
    "created": "17:05:17",
    "updated": "17:07:11",
    "started": "17:05:17",
    "videoOn": true,
    "order": 4
  },
  {
    "identity": "morcen2@example.com",
    "created": "17:05:16",
    "updated": "17:07:08",
    "started": "17:05:16",
    "videoOn": true,
    "order": 3
  },
  {
    "identity": "morcen3@example.com",
    "created": "17:05:15",
    "updated": "17:07:04",
    "started": "17:05:15",
    "videoOn": true,
    "order": 2
  },
  {
    "identity": "morcen4@example.com",
    "created": "16:46:32",
    "updated": "17:07:14",
    "started": "16:46:32",
    "videoOn": true,
    "order": 1
  }
]

// both the video and audio track set to false to immediately trigger TypeError
var constraints = {
    video: false,
    audio: false
}
navigator.mediaDevices.getUserMedia(constraints).then(function success(stream) {
    /* do stuff */
}).catch(function(err) {
    //log to console first 
    console.log(err); /* handle the error */
    if (err.name == "NotReadableError" || err.name == "TrackStartError") {
        //webcam or mic are already in use 
    } else {
        //other errors 
    }
});

navigator.getUserMedia = (navigator.getUserMedia ||
  navigator.webkitGetUserMedia ||
  navigator.mozGetUserMedia ||
  navigator.msGetUserMedia);

if (navigator.getUserMedia) {
  navigator.getUserMedia({
      audio: true,
      video: true
    },
    function(stream) {
      // returns true if any tracks have active state of true
      var result = stream.getVideoTracks().some(function(track) {
        return track.enabled && track.readyState === 'live';
      });

      if (result) {
        alert('Your webcam is busy!');
      } else {
        alert('Not busy');
      }
    },
    function(e) {
      alert("Error: " + e.name);
    });
}

stream.getTracks().forEach(track => track.stop())