From 2255a1e64f842997273071b359eab6a88a3fe113 Mon Sep 17 00:00:00 2001
From: Marco Nelissen <marcone@google.com>
Date: Fri, 12 Aug 2011 14:14:39 -0700
Subject: [PATCH] Don't remove effects on session 0

b/5159902
Change-Id: Id6f29fb1c687069f7480dd81d4745a558f202226
---
 services/audioflinger/AudioFlinger.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 95c469dfe57ff..941c9c808757f 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -5118,7 +5118,9 @@ void AudioFlinger::purgeStaleEffects_l() {
         sp<PlaybackThread> t = mPlaybackThreads.valueAt(i);
         for (size_t j = 0; j < t->mEffectChains.size(); j++) {
             sp<EffectChain> ec = t->mEffectChains[j];
-            chains.push(ec);
+            if (ec->sessionId() > AUDIO_SESSION_OUTPUT_MIX) {
+                chains.push(ec);
+            }
         }
     }
     for (size_t i = 0; i < mRecordThreads.size(); i++) {