jitter

src/Peer.ts

@@ -28,6 +28,7 @@ export class Peer implements Hello, PeerQuality, RouterConfig {
   reset() {
     this.delay = 0;
     this.reliability = 0;
+    this.jitter = 0;
     this.seq = 0;
     this.time = 0;
     this.history = [];
@@ -59,6 +60,11 @@ export class Peer implements Hello, PeerQuality, RouterConfig {
 
     this.reliability = history.length / config.history;
     this.delay = _.mean(history) || 0;
+    let jitterSum = 0;
+    for (let i = 0; i < history.length - 1; i++) {
+      jitterSum[i] += Math.abs(history[i] - history[i + 1]);
+    }
+    this.jitter = (jitterSum / history.length - 1) || 0;
 
     this.seq = data.seq;
     this.time = time;
@@ -75,7 +81,7 @@ export class Peer implements Hello, PeerQuality, RouterConfig {
 
     return {
       delay: Math.round(this.delay),
-      jitter: 0,
+      jitter: Math.round(this.jitter),
       reliability: this.reliability
     };
   }