From cb5ddcdeaf7876f9c184ffc3a11793b7c2dc529b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Javier=20Cervi=C3=B1o?= <jcague@gmail.com>
Date: Thu, 16 Mar 2017 14:17:24 +0100
Subject: [PATCH] Fix bad quality filter behaviour with VP9 SVC (#806)

---
 erizo/src/erizo/rtp/QualityFilterHandler.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/erizo/src/erizo/rtp/QualityFilterHandler.cpp b/erizo/src/erizo/rtp/QualityFilterHandler.cpp
index 7927bb7376..62eafc2877 100644
--- a/erizo/src/erizo/rtp/QualityFilterHandler.cpp
+++ b/erizo/src/erizo/rtp/QualityFilterHandler.cpp
@@ -130,7 +130,7 @@ void QualityFilterHandler::write(Context *ctx, std::shared_ptr<dataPacket> packe
     uint32_t ssrc = rtp_header->getSSRC();
     uint16_t sequence_number = rtp_header->getSeqNumber();
 
-    if (ssrc != last_ssrc_received_) {
+    if (last_ssrc_received_ != 0 && ssrc != last_ssrc_received_) {
       receiving_multiple_ssrc_ = true;
     }