From b8dba8904e8a007e055a8d5cca6de36e9ae183c9 Mon Sep 17 00:00:00 2001
From: Jean-Michel Trivi <jmtrivi@google.com>
Date: Wed, 28 Oct 2009 17:24:53 -0700
Subject: [PATCH] Fix bug 2210203 where Music volume is reduced after reducing
 in-call volume. This is the combination of two issues: - on QSD8K, the voice
 volume affects all streams, even when not in call.  This is fixed by setting
 the voice volume to unity gain whenever  exiting a call. - another related
 issue was that when entering a call with no audio  playing, the in-call
 volume would be at its max. This is due to the audio driver resetting the
 gain to unity when creating a new output. AudioPolicyManager::setPhoneState()
 would sometimes fail to force the reset of the audio volumes when entering a
 call, causing the driver to use the unity gain, not the in-call volume set by
 the user. This is fixed by testing whether is call is starting or ending
 independently from the logic to determine the new ouput device.