Only audio input now does not break getUserMedia process

openvidu-browser/src/main/resources/package.json

@@ -6,6 +6,7 @@
   "types": "lib/OpenVidu/index.d.ts",
   "scripts": {
     "browserify": "cd ts/OpenVidu && browserify Main.ts -p [ tsify ] --exclude kurento-browser-extensions --debug -o ../../static/js/OpenVidu.js -v",
+    "browserify-prod": "cd ts/OpenVidu && browserify --debug Main.ts -p [ tsify ] --exclude kurento-browser-extensions | uglifyjs -c > ../../static/js/OpenVidu.js",
     "updatetsc": "cd ts/OpenViduInternal && tsc && cd ../OpenVidu && tsc",
     "test": "echo \"Error: no test specified\" && exit 1",
     "prepublish": "cd ts && tsc",

openvidu-browser/src/main/resources/ts/OpenViduInternal/Stream.ts

@@ -244,6 +244,9 @@ export class Stream {
     }
 
     playOnlyVideo(parentElement, thumbnailId) {
+
+        // TO-DO: check somehow if the stream is audio only, so the element created is <audio> instead of <video>
+    
         this.video = document.createElement('video');
 
         this.video.id = 'native-video-' + this.getId();
@@ -339,7 +342,7 @@ export class Stream {
 
         let constraints = this.mediaConstraints;
 
-        let constraints2 = {
+        /*let constraints2 = {
             audio: true,
             video: {
                 width: {
@@ -349,16 +352,32 @@ export class Stream {
                     ideal: 15
                 }
             }
-        };
+        };*/
 
+        this.userMediaHasVideo((hasVideo) => {
+            if (!hasVideo) {
+                constraints.video = false;
+                this.sendVideo = false;
+                this.requestCameraAccesAux(constraints, callback);
+            } else {
+                this.requestCameraAccesAux(constraints, callback);
+            }
+        });
+    }
+
+    private requestCameraAccesAux(constraints, callback) {
         navigator.mediaDevices.getUserMedia(constraints)
             .then(userStream => {
                 this.accessIsAllowed = true;
                 this.accessIsDenied = false;
                 this.ee.emitEvent('access-allowed-by-publisher');
 
+                if (userStream.getAudioTracks()[0] != null) {
                     userStream.getAudioTracks()[0].enabled = this.sendAudio;
+                }
+                if (userStream.getVideoTracks()[0] != null) {
                     userStream.getVideoTracks()[0].enabled = this.sendVideo;
+                }
 
                 this.wrStream = userStream;
                 this.emitSrcEvent(this.wrStream);
@@ -375,6 +394,15 @@ export class Stream {
             });
     }
 
+    private userMediaHasVideo(callback) {
+        navigator.mediaDevices.enumerateDevices().then(function (mediaDevices) {
+            var videoInput = mediaDevices.filter(function (deviceInfo) {
+                return deviceInfo.kind === 'videoinput';
+            })[0];
+            callback(videoInput != null);
+        });
+    }
+
     publishVideoCallback(error, sdpOfferParam, wp) {
 
         if (error) {