Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/prejs/MediaDevices.jsの修正案

MediaDevices.js

var MediaDevices = [];

Module['preRun'].push(function () {

	var enumerateMediaDevices = function () {

		var getMedia = navigator.getUserMedia ||
			navigator.webkitGetUserMedia ||
			navigator.mozGetUserMedia ||
			navigator.msGetUserMedia;

		if (!getMedia)
			return;

		function addDevice(device) {
			var label = device.label;
			label = label ? label : ("device #" + MediaDevices.length);

			var device =
			{
				deviceId: device.deviceId,
				deviceName: label,
				refCount: 0,
				video: null
			};

			MediaDevices.push(device);
		}

		// try MediaDevices.enumerateDevices, if available
		if (!navigator.mediaDevices || !navigator.mediaDevices.enumerateDevices) {
			if (typeof MediaStreamTrack == 'undefined' ||
				typeof MediaStreamTrack.getSources == 'undefined') {
				console.log("Media Devices cannot be enumerated on this browser.");
				return;
			}

			function gotSources(sourceInfos) {
				for (var i = 0; i !== sourceInfos.length; ++i) {
					var sourceInfo = sourceInfos[i];
					if (sourceInfo.kind === 'video')
						addDevice(sourceInfo);
				}
			}

			// MediaStreamTrack.getSources asynchronously returns a list of objects that identify devices
			// and for privacy purposes the .label properties are not filled in unless the user has consented to
			// device access through getUserMedia.
			MediaStreamTrack.getSources(gotSources);
		}

		// List cameras and microphones.
		navigator.mediaDevices.enumerateDevices().then(function (devices) {
			devices.forEach(function (device) {
				// device: kind, label, deviceId
				if (device.kind == 'videoinput')
					addDevice(device);
			});
		}).catch(function (err) {
			console.log(err.name + ": " + error.message);
		});
	};
	enumerateMediaDevices();
});