From 745e4a6a87bef856c0294ecdfdbaa5092466b28f Mon Sep 17 00:00:00 2001
From: George Politis <gp@jitsi.org>
Date: Fri, 12 Sep 2014 13:37:57 +0200
Subject: [PATCH] Fixes simulcast layers ordering.

---
 simulcast.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/simulcast.js b/simulcast.js
index 45b0f660c..f7217b568 100644
--- a/simulcast.js
+++ b/simulcast.js
@@ -633,8 +633,12 @@ function Simulcast() {
 
                 navigator.webkitGetUserMedia(lqConstraints, function (lqStream) {
 
+                    // NOTE(gp) The specification says Array.forEach() will visit
+                    // the array elements in numeric order, and that it doesn't
+                    // visit elements that don't exist.
+
                     // add lq trackid to local map
-                    localMaps.msids.push(lqStream.getVideoTracks()[0].id);
+                    localMaps.msids.splice(0, 0, lqStream.getVideoTracks()[0].id);
 
                     hqStream.addTrack(lqStream.getVideoTracks()[0]);
                     success(hqStream);