Capped bitrates for WebRTC Streams

www/js/channel/webRTCHandler.js

@@ -164,6 +164,12 @@ class webRTCHandler{
         //Set offer as peerConnections local description
         await this.currentStream.setLocalDescription(offer);
 
+        //For each receiver from the current streamer
+        for(let receiver of this.currentStream.getReceivers()){
+            //Set jitter buffer target to 1.5s, since we care more about consistent video quality than we do latency
+            receiver.jitterBufferTarget = 1500;
+        }
+
         //Send RTC connection offer to server to be relayed to streamer's device
         this.client.socket.emit("relayRTCData", {type:"request",body:offer});
     }
@@ -289,17 +295,11 @@ class webRTCHandler{
             title.innerText = "WebRTC Error";
 
             let text = document.createElement('p');
-            text.innerText = "Looks like we're having issues connecting you to your stream. Make sure you're not behind a CGNAT or something.";
+            text.innerHTML = "Looks like we're having issues connecting you to your stream.<br><br>If you can't get it after a refresh, try again later or on another connection/device.";
-
-            let link = document.createElement('a');
-            link.innerText = "Click here for more info...";
-            link.href = "/streamInfo";
-            link.target = "_blank";
 
             let textBlock = document.createElement('div');
             textBlock.appendChild(title);
             textBlock.appendChild(text);
-            textBlock.appendChild(link);            
 
             let errorBlock = document.createElement('div');
             errorBlock.id = "web-rtc-error-block"
@@ -359,6 +359,23 @@ class connectedViewer{
             peer.addTrack(track, this.broadcastingStream);
         }
 
+        //For each sender for this peer
+        for(let sender of peer.getSenders()){
+            //Set audio tracks to 192kbps and video tracks to 1200kbps
+            const bitrate = (sender.track.kind == "audio") ? 192 * 1000 : 1200 * 1000;
+            //gank parms from the sender
+            const parms = sender.getParameters();
+
+            //Run through all listed encodings in the current sender paramters
+            for(let encodingIndex in parms.encodings){
+                //Set max bitrate to chosen bitrate
+                parms.encodings[encodingIndex].maxBitrate = bitrate;
+            }
+
+            //Set sender parameters to modified parameters
+            sender.setParameters(parms);
+        }
+
         //Set peer remote description to connection offer from viewer
         peer.setRemoteDescription(new RTCSessionDescription(offer));