Parse JSON from server SDP

web/static/js/modules/webrtc.js

@@ -90,9 +90,9 @@ export class GsWebRTC {
     /**
      * Set WebRTC remote description
      * After that, the connection will be established and ontrack will be fired.
-     * @param {*} data Session description data
+     * @param {RTCSessionDescription} sdp Session description data
      */
-    setRemoteDescription(data) {
-        this.pc.setRemoteDescription(new RTCSessionDescription(data));
+    setRemoteDescription(sdp) {
+        this.pc.setRemoteDescription(sdp);
     }
 }

web/static/js/modules/websocket.js

@@ -55,9 +55,9 @@ export class GsWebSocket {
      */
     onDescription(callback) {
         this.socket.addEventListener("message", (event) => {
-            // FIXME: json to session description
             console.log("Message from server ", event.data);
-            callback(event.data);
+            const sdp = new RTCSessionDescription(JSON.parse(event.data));
+            callback(sdp);
         });
     }
 }

web/static/js/viewer.js

@@ -26,8 +26,8 @@ export function initViewerPage(stream, stunServers, viewersCounterRefreshPeriod)
     c.onICECandidate(localDescription => {
         s.sendDescription(localDescription, stream, quality);
     });
-    s.onDescription(data => {
-        c.setRemoteDescription(data);
+    s.onDescription(sdp => {
+        c.setRemoteDescription(sdp);
     });
 
     // Register keyboard events