From 165809b33198cd3926cc11e8cbc96b671d4c87d3 Mon Sep 17 00:00:00 2001
From: RoboErik <epastern@google.com>
Date: Mon, 29 Sep 2014 14:16:45 -0700
Subject: [PATCH] Send volume keys to the default stream if not actually
 playing

This ensures that we'll only adjust volume on a session's stream if
that stream is actually in use.

bug:17690423
Change-Id: I5fce8265a015bbc5034afa16719d9a0bbf257598
---
 .../android/server/media/MediaSessionRecord.java    | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/services/core/java/com/android/server/media/MediaSessionRecord.java b/services/core/java/com/android/server/media/MediaSessionRecord.java
index d9730aa634241..a0ec1d56673b7 100644
--- a/services/core/java/com/android/server/media/MediaSessionRecord.java
+++ b/services/core/java/com/android/server/media/MediaSessionRecord.java
@@ -23,6 +23,7 @@ import android.content.Intent;
 import android.content.pm.ParceledListSlice;
 import android.media.AudioManager;
 import android.media.AudioManagerInternal;
+import android.media.AudioSystem;
 import android.media.MediaDescription;
 import android.media.MediaMetadata;
 import android.media.Rating;
@@ -237,6 +238,7 @@ public class MediaSessionRecord implements IBinder.DeathRecipient {
      */
     public void adjustVolume(int direction, int flags, String packageName, int uid,
             boolean useSuggested) {
+        int previousFlagPlaySound = flags & AudioManager.FLAG_PLAY_SOUND;
         if (isPlaybackActive(false) || hasFlag(MediaSession.FLAG_EXCLUSIVE_GLOBAL_PRIORITY)) {
             flags &= ~AudioManager.FLAG_PLAY_SOUND;
         }
@@ -248,8 +250,15 @@ public class MediaSessionRecord implements IBinder.DeathRecipient {
         if (mVolumeType == PlaybackInfo.PLAYBACK_TYPE_LOCAL) {
             int stream = AudioAttributes.toLegacyStreamType(mAudioAttrs);
             if (useSuggested) {
-                mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(stream, direction, flags,
-                        packageName, uid);
+                if (AudioSystem.isStreamActive(stream, 0)) {
+                    mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(stream, direction,
+                            flags, packageName, uid);
+                } else {
+                    flags |= previousFlagPlaySound;
+                    mAudioManagerInternal.adjustSuggestedStreamVolumeForUid(
+                            AudioManager.USE_DEFAULT_STREAM_TYPE, direction, flags, packageName,
+                            uid);
+                }
             } else {
                 mAudioManagerInternal.adjustStreamVolumeForUid(stream, direction, flags,
                         packageName, uid);