fix(device-selection): use device kind when getting current devices (#4059)

Devices of different kinds can have the same id, such as speaker
and mic both being default. Using id only can then lead to
incorrectly setting device descriptions in the current devices
object.

react/features/device-selection/functions.js

@@ -82,31 +82,36 @@ export function processExternalDeviceRequest( // eslint-disable-line max-params
     case 'getCurrentDevices':
         dispatch(getAvailableDevices()).then(devices => {
             if (areDeviceLabelsInitialized(state)) {
-                let audioInput, audioOutput, videoInput;
-                const audioOutputDeviceId = getAudioOutputDeviceId();
-                const { cameraDeviceId, micDeviceId } = settings;
+                const deviceDescriptions = {
+                    audioInput: undefined,
+                    audioOutput: undefined,
+                    videoInput: undefined
+                };
+                const currentlyUsedDeviceIds = new Set([
+                    getAudioOutputDeviceId(),
+                    settings.micDeviceId,
+                    settings.cameraDeviceId
+                ]);
 
                 devices.forEach(device => {
-                    const { deviceId } = device;
-
-                    switch (deviceId) {
-                    case micDeviceId:
-                        audioInput = device;
-                        break;
-                    case audioOutputDeviceId:
-                        audioOutput = device;
-                        break;
-                    case cameraDeviceId:
-                        videoInput = device;
-                        break;
+                    const { deviceId, kind } = device;
+
+                    if (currentlyUsedDeviceIds.has(deviceId)) {
+                        switch (kind) {
+                        case 'audioinput':
+                            deviceDescriptions.audioInput = device;
+                            break;
+                        case 'audiooutput':
+                            deviceDescriptions.audioOutput = device;
+                            break;
+                        case 'videoinput':
+                            deviceDescriptions.videoInput = device;
+                            break;
+                        }
                     }
                 });
 
-                responseCallback({
-                    audioInput,
-                    audioOutput,
-                    videoInput
-                });
+                responseCallback(deviceDescriptions);
             } else {
                 // The labels are not available if the A/V permissions are
                 // not yet granted.