Video calling (in a tiny box at the moment)

webclient/app-controller.js

@@ -150,6 +150,8 @@ angular.module('MatrixWebClientController', ['matrixService', 'mPresence', 'even
         }
         call.onError = $scope.onCallError;
         call.onHangup = $scope.onCallHangup;
+        call.localVideoElement = angular.element('#localVideo')[0];
+        call.remoteVideoElement = angular.element('#remoteVideo')[0];
         $rootScope.currentCall = call;
     });
 

webclient/app.css

@@ -89,6 +89,21 @@ a:active  { color: #000; }
     font-size: 80%;
 }
 
+#localVideo {
+    position: absolute;
+    top: 32px;
+    left: 160px;
+    width: 128px;
+    height: 72px;
+}
+#remoteVideo {
+    position: absolute;
+    top: 32px;
+    left: 300px;
+    width: 128px;
+    height: 72px;
+}
+
 #headerContent {
     color: #ccc;
     max-width: 1280px;
@@ -96,6 +111,7 @@ a:active  { color: #000; }
     text-align: right;
     height: 32px;
     line-height: 32px;
+    position: relative;
 }
 
 #headerContent a:link,

webclient/components/matrix/matrix-call.js

@@ -51,6 +51,12 @@ angular.module('MatrixCall', [])
         // a queue for candidates waiting to go out. We try to amalgamate candidates into a single candidate message where possible
         this.candidateSendQueue = [];
         this.candidateSendTries = 0;
+
+        var self = this;
+        $rootScope.$watch(this.remoteVideoElement, function (oldValue, newValue) {
+            self.tryPlayRemoteStream();
+        });
+
     }
 
     MatrixCall.CALL_TIMEOUT = 60000;
@@ -71,13 +77,39 @@ angular.module('MatrixCall', [])
         return pc;
     }
 
-    MatrixCall.prototype.placeCall = function(config) {
+    MatrixCall.prototype.getUserMediaVideoContraints = function(callType) {
+        switch (callType) {
+            case 'voice':
+                return ({audio: true, video: false});
+            case 'video':
+                return ({audio: true, video: {
+                    mandatory: {
+                        minWidth: 640,
+                        maxWidth: 640,
+                        minHeight: 360,
+                        maxHeight: 360,
+                    }
+                }});
+        }
+    };
+
+    MatrixCall.prototype.placeVoiceCall = function() {
+        this.placeCallWithConstraints(this.getUserMediaVideoContraints('voice'));
+        this.type = 'voice';
+    };
+
+    MatrixCall.prototype.placeVideoCall = function(config) {
+        this.placeCallWithConstraints(this.getUserMediaVideoContraints('video'));
+        this.type = 'video';
+    };
+
+    MatrixCall.prototype.placeCallWithConstraints = function(constraints) {
         var self = this;
         matrixPhoneService.callPlaced(this);
-        navigator.getUserMedia({audio: config.audio, video: config.video}, function(s) { self.gotUserMediaForInvite(s); }, function(e) { self.getUserMediaFailed(e); });
+        navigator.getUserMedia(constraints, function(s) { self.gotUserMediaForInvite(s); }, function(e) { self.getUserMediaFailed(e); });
         this.state = 'wait_local_media';
         this.direction = 'outbound';
-        this.config = config;
+        this.config = constraints;
     };
 
     MatrixCall.prototype.initWithInvite = function(event) {
@@ -110,7 +142,7 @@ angular.module('MatrixCall', [])
         console.log("Answering call "+this.call_id);
         var self = this;
         if (!this.localAVStream && !this.waitForLocalAVStream) {
-            navigator.getUserMedia({audio: true, video: false}, function(s) { self.gotUserMediaForAnswer(s); }, function(e) { self.getUserMediaFailed(e); });
+            navigator.getUserMedia(this.getUserMediaVideoContraints(this.type), function(s) { self.gotUserMediaForAnswer(s); }, function(e) { self.getUserMediaFailed(e); });
             this.state = 'wait_local_media';
         } else if (this.localAVStream) {
             this.gotUserMediaForAnswer(this.localAVStream);
@@ -156,6 +188,13 @@ angular.module('MatrixCall', [])
         }
         if (this.state == 'ended') return;
 
+        if (this.localVideoElement && this.type == 'video') {
+            var vidTrack = stream.getVideoTracks()[0];
+            this.localVideoElement.src = URL.createObjectURL(stream);
+            this.localVideoElement.muted = true;
+            this.localVideoElement.play();
+        }
+
         this.localAVStream = stream;
         var audioTracks = stream.getAudioTracks();
         for (var i = 0; i < audioTracks.length; i++) {
@@ -177,6 +216,13 @@ angular.module('MatrixCall', [])
     MatrixCall.prototype.gotUserMediaForAnswer = function(stream) {
         if (this.state == 'ended') return;
 
+        if (this.localVideoElement && this.type == 'video') {
+            var vidTrack = stream.getVideoTracks()[0];
+            this.localVideoElement.src = URL.createObjectURL(stream);
+            this.localVideoElement.muted = true;
+            this.localVideoElement.play();
+        }
+
         this.localAVStream = stream;
         var audioTracks = stream.getAudioTracks();
         for (var i = 0; i < audioTracks.length; i++) {
@@ -187,7 +233,7 @@ angular.module('MatrixCall', [])
         var constraints = {
             'mandatory': {
                 'OfferToReceiveAudio': true,
-                'OfferToReceiveVideo': false
+                'OfferToReceiveVideo': this.type == 'video'
             },
         };
         this.peerConn.createAnswer(function(d) { self.createdAnswer(d); }, function(e) {}, constraints);
@@ -218,6 +264,7 @@ angular.module('MatrixCall', [])
         this.state = 'connecting';
     };
 
+
     MatrixCall.prototype.gotLocalOffer = function(description) {
         console.log("Created offer: "+description);
 
@@ -305,6 +352,14 @@ angular.module('MatrixCall', [])
 
         this.remoteAVStream = s;
 
+        if (this.direction == 'inbound') {
+            if (s.getVideoTracks().length > 0) {
+                this.type = 'video';
+            } else {
+                this.type = 'voice';
+            }
+        }
+
         var self = this;
         forAllTracksOnStream(s, function(t) {
             // not currently implemented in chrome
@@ -314,9 +369,16 @@ angular.module('MatrixCall', [])
         event.stream.onended = function(e) { self.onRemoteStreamEnded(e); }; 
         // not currently implemented in chrome
         event.stream.onstarted = function(e) { self.onRemoteStreamStarted(e); };
-        var player = new Audio();
+
-        player.src = URL.createObjectURL(s);
+        this.tryPlayRemoteStream();
-        player.play();
+    };
+
+    MatrixCall.prototype.tryPlayRemoteStream = function(event) {
+        if (this.remoteVideoElement && this.remoteAVStream) {
+            var player = this.remoteVideoElement;
+            player.src = URL.createObjectURL(this.remoteAVStream);
+            player.play();
+        }
     };
 
     MatrixCall.prototype.onRemoteStreamStarted = function(event) {
@@ -350,7 +412,7 @@ angular.module('MatrixCall', [])
         this.state = 'ended';
         this.hangupParty = 'remote';
         this.stopAllMedia();
-        if (this.peerConn.signalingState != 'closed') this.peerConn.close();
+        if (this.peerConn && this.peerConn.signalingState != 'closed') this.peerConn.close();
         if (this.onHangup) this.onHangup(this);
     };
 
@@ -361,13 +423,15 @@ angular.module('MatrixCall', [])
             newCall.waitForLocalAVStream = true;
         } else if (this.state == 'create_offer') {
             console.log("Handing local stream to new call");
-            newCall.localAVStream = this.localAVStream;
+            newCall.gotUserMediaForAnswer(this.localAVStream);
             delete(this.localAVStream);
         } else if (this.state == 'invite_sent') {
             console.log("Handing local stream to new call");
-            newCall.localAVStream = this.localAVStream;
+            newCall.gotUserMediaForAnswer(this.localAVStream);
             delete(this.localAVStream);
         }
+        newCall.localVideoElement = this.localVideoElement;
+        newCall.remoteVideoElement = this.remoteVideoElement;
         this.successor = newCall;
         this.hangup(true);
     };

webclient/index.html

@@ -58,7 +58,8 @@
                     <br />
                     <span id="callState">
                         <span ng-show="currentCall.state == 'invite_sent'">Calling...</span>
-                        <span ng-show="currentCall.state == 'ringing'">Incoming Call</span>
+                        <span ng-show="currentCall.state == 'ringing' && currentCall.type == 'video'">Incoming Video Call</span>
+                        <span ng-show="currentCall.state == 'ringing' && currentCall.type == 'voice'">Incoming Voice Call</span>
                         <span ng-show="currentCall.state == 'connecting'">Call Connecting...</span>
                         <span ng-show="currentCall.state == 'connected'">Call Connected</span>
                         <span ng-show="currentCall.state == 'ended' && !currentCall.didConnect && currentCall.direction == 'outbound' && currentCall.hangupParty == 'remote'">Call Rejected</span>
@@ -71,7 +72,7 @@
                     </span>
                 </div>
                 <span ng-show="currentCall.state == 'ringing'">
-                    <button ng-click="answerCall()">Answer</button>
+                    <button ng-click="answerCall()">Answer {{ currentCall.type }} call</button>
                     <button ng-click="hangupCall()">Reject</button>
                 </span>
                 <button ng-click="hangupCall()" ng-show="currentCall && currentCall.state != 'ringing' && currentCall.state != 'ended' && currentCall.state != 'fledgling'">Hang up</button>
@@ -92,6 +93,9 @@
                     <source src="media/busy.mp3" type="audio/mpeg" />
                 </audio>
             </div>
+            <video id="localVideo" ng-show="currentCall && currentCall.type == 'video' && (currentCall.state == 'connected' || currentCall.state == 'connecting' || currentCall.state == 'invite_sent')"></video>
+            <video id="remoteVideo" ng-show="currentCall && currentCall.type == 'video' && currentCall.state == 'connected'"></video>
+
             <a href id="headerUserId" ng-click='goToUserPage(user_id)'>{{ user_id }}</a>
             &nbsp;
             <button ng-click='goToPage("/")'>Home</button>

webclient/room/room-controller.js

@@ -837,7 +837,9 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
         var call = new MatrixCall($scope.room_id);
         call.onError = $rootScope.onCallError;
         call.onHangup = $rootScope.onCallHangup;
-        call.placeCall({audio: true, video: false});
+        // remote video element is used for playing audio in voice calls
+        call.remoteVideoElement = angular.element('#remoteVideo')[0];
+        call.placeVoiceCall();
         $rootScope.currentCall = call;
     };
 
@@ -845,7 +847,9 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
         var call = new MatrixCall($scope.room_id);
         call.onError = $rootScope.onCallError;
         call.onHangup = $rootScope.onCallHangup;
-        call.placeCall({audio: true, video: true});
+        call.localVideoElement = angular.element('#localVideo')[0];
+        call.remoteVideoElement = angular.element('#remoteVideo')[0];
+        call.placeVideoCall();
         $rootScope.currentCall = call;
     };
 

webclient/room/room.html

@@ -173,6 +173,7 @@
                 </span>
                 <button ng-click="leaveRoom()" ng-disabled="state.permission_denied">Leave</button>
                 <button ng-click="startVoiceCall()" ng-show="(currentCall == undefined || currentCall.state == 'ended') && memberCount() == 2" ng-disabled="state.permission_denied">Voice Call</button>
+                <button ng-click="startVideoCall()" ng-show="(currentCall == undefined || currentCall.state == 'ended') && memberCount() == 2" ng-disabled="state.permission_denied">Video Call</button>
             </div>
         
             {{ feedback }}