From 06c636311d8b540f18c16d3fab90bc8710343b04 Mon Sep 17 00:00:00 2001
From: damencho <damencho@jitsi.org>
Date: Wed, 3 Aug 2016 11:08:23 -0500
Subject: [PATCH] Adds analytics event and console log for TTFM (time to first
 media).

---
 conference.js                        | 6 ++++++
 modules/UI/videolayout/SmallVideo.js | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/conference.js b/conference.js
index c9304b6b3..d50c669e0 100644
--- a/conference.js
+++ b/conference.js
@@ -628,6 +628,12 @@ export default {
     sendFeedback (overallFeedback, detailedFeedback) {
         return room.sendFeedback (overallFeedback, detailedFeedback);
     },
+    /**
+     * Returns the connection times stored in the library.
+     */
+    getConnectionTimes () {
+        return this._room.getConnectionTimes();
+    },
     // used by torture currently
     isJoined () {
         return this._room
diff --git a/modules/UI/videolayout/SmallVideo.js b/modules/UI/videolayout/SmallVideo.js
index 801b90b52..929967a48 100644
--- a/modules/UI/videolayout/SmallVideo.js
+++ b/modules/UI/videolayout/SmallVideo.js
@@ -167,6 +167,12 @@ SmallVideo.createStreamElement = function (stream) {
         console.log("(TIME) Render " + type + ":\t",
                     now);
         AnalyticsAdapter.sendEvent('render.' + type, now);
+
+        var ttfm = now - APP.connectionTimes["document.ready"]
+            - (APP.conference.getConnectionTimes()["session.initiate"]
+                - APP.conference.getConnectionTimes()["muc.joined"]);
+        console.log("(TIME) TTFM " + type + ":\t", ttfm);
+        AnalyticsAdapter.sendEvent('ttfm.' + type, ttfm);
     };
     return element;
 };