Merge "Fix Cell broadcast sound in total silence" into oc-mr1-dev am: 77ee4f2ff2

am: 8916db215f

Change-Id: Ie7fc5c28a0a6de7309f065a3b001bdd8190fa95e

3 files changed, 58 insertions, 13 deletions

diff --git a/media/java/android/media/PlayerBase.java b/media/java/android/media/PlayerBase.java
index 4808d7a5aa6a..09449a183d96 100644
--- a/media/java/android/media/PlayerBase.java
+++ b/media/java/android/media/PlayerBase.java
@@ -127,8 +127,9 @@ public abstract class PlayerBase {
             Log.e(TAG, "Error talking to audio service, STARTED state will not be tracked", e);
         }
         synchronized (mLock) {
+            boolean attributesChanged = (mAttributes != attr);
             mAttributes = attr;
-            updateAppOpsPlayAudio_sync();
+            updateAppOpsPlayAudio_sync(attributesChanged);
         }
     }
 
@@ -200,16 +201,13 @@ public abstract class PlayerBase {
     }
 
     void baseSetVolume(float leftVolume, float rightVolume) {
-        final boolean hasAppOpsPlayAudio;
+        final boolean isRestricted;
         synchronized (mLock) {
             mLeftVolume = leftVolume;
             mRightVolume = rightVolume;
-            hasAppOpsPlayAudio = mHasAppOpsPlayAudio;
-            if (isRestricted_sync()) {
-                return;
-            }
+            isRestricted = isRestricted_sync();
         }
-        playerSetVolume(!hasAppOpsPlayAudio/*muting*/,
+        playerSetVolume(isRestricted/*muting*/,
                 leftVolume * mPanMultiplierL, rightVolume * mPanMultiplierR);
     }
 
@@ -250,7 +248,7 @@ public abstract class PlayerBase {
 
     private void updateAppOpsPlayAudio() {
         synchronized (mLock) {
-            updateAppOpsPlayAudio_sync();
+            updateAppOpsPlayAudio_sync(false);
         }
     }
 
@@ -258,7 +256,7 @@ public abstract class PlayerBase {
      * To be called whenever a condition that might affect audibility of this player is updated.
      * Must be called synchronized on mLock.
      */
-    void updateAppOpsPlayAudio_sync() {
+    void updateAppOpsPlayAudio_sync(boolean attributesChanged) {
         boolean oldHasAppOpsPlayAudio = mHasAppOpsPlayAudio;
         try {
             int mode = AppOpsManager.MODE_IGNORED;
@@ -275,9 +273,10 @@ public abstract class PlayerBase {
         // AppsOps alters a player's volume; when the restriction changes, reflect it on the actual
         // volume used by the player
         try {
-            if (oldHasAppOpsPlayAudio != mHasAppOpsPlayAudio) {
+            if (oldHasAppOpsPlayAudio != mHasAppOpsPlayAudio ||
+                    attributesChanged) {
                 getService().playerHasOpPlayAudio(mPlayerIId, mHasAppOpsPlayAudio);
-                if (mHasAppOpsPlayAudio) {
+                if (!isRestricted_sync()) {
                     if (DEBUG_APP_OPS) {
                         Log.v(TAG, "updateAppOpsPlayAudio: unmuting player, vol=" + mLeftVolume
                                 + "/" + mRightVolume);
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index c17583ff370c..5eb2a8d2066f 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -751,6 +751,9 @@ public class AudioService extends IAudioService.Stub
         // relies on audio policy having correct ranges for volume indexes.
         mSafeUsbMediaVolumeIndex = getSafeUsbMediaVolumeIndex();
 
+        mPlaybackMonitor =
+                new PlaybackActivityMonitor(context, MAX_STREAM_VOLUME[AudioSystem.STREAM_ALARM]);
+
         mMediaFocusControl = new MediaFocusControl(mContext, mPlaybackMonitor);
 
         mRecordMonitor = new RecordingActivityMonitor(mContext);
@@ -6977,7 +6980,7 @@ public class AudioService extends IAudioService.Stub
     //======================
     // Audio playback notification
     //======================
-    private final PlaybackActivityMonitor mPlaybackMonitor = new PlaybackActivityMonitor();
+    private final PlaybackActivityMonitor mPlaybackMonitor;
 
     public void registerPlaybackCallback(IPlaybackConfigDispatcher pcdb) {
         final boolean isPrivileged =
diff --git a/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java b/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
index d1a37af5e7a8..512f72a60dea 100644
--- a/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
+++ b/services/core/java/com/android/server/audio/PlaybackActivityMonitor.java
@@ -17,6 +17,8 @@
 package com.android.server.audio;
 
 import android.annotation.NonNull;
+import android.content.Context;
+import android.content.pm.PackageManager;
 import android.media.AudioAttributes;
 import android.media.AudioManager;
 import android.media.AudioPlaybackConfiguration;
@@ -90,7 +92,14 @@ public final class PlaybackActivityMonitor
     private final HashMap<Integer, AudioPlaybackConfiguration> mPlayers =
             new HashMap<Integer, AudioPlaybackConfiguration>();
 
-    PlaybackActivityMonitor() {
+    private final Context mContext;
+    private int mSavedAlarmVolume = -1;
+    private final int mMaxAlarmVolume;
+    private int mPrivilegedAlarmActiveCount = 0;
+
+    PlaybackActivityMonitor(Context context, int maxAlarmVolume) {
+        mContext = context;
+        mMaxAlarmVolume = maxAlarmVolume;
         PlayMonitorClient.sListenerDeathMonitor = this;
         AudioPlaybackConfiguration.sPlayerDeathMonitor = this;
     }
@@ -175,6 +184,38 @@ public final class PlaybackActivityMonitor
         }
     }
 
+    private void checkVolumeForPrivilegedAlarm(AudioPlaybackConfiguration apc, int event) {
+        if (event == AudioPlaybackConfiguration.PLAYER_STATE_STARTED ||
+                apc.getPlayerState() == AudioPlaybackConfiguration.PLAYER_STATE_STARTED) {
+            if ((apc.getAudioAttributes().getAllFlags() &
+                    AudioAttributes.FLAG_BYPASS_INTERRUPTION_POLICY) != 0 &&
+                    apc.getAudioAttributes().getUsage() == AudioAttributes.USAGE_ALARM &&
+                    mContext.checkPermission(android.Manifest.permission.MODIFY_PHONE_STATE,
+                            apc.getClientPid(), apc.getClientUid()) ==
+                            PackageManager.PERMISSION_GRANTED) {
+                if (event == AudioPlaybackConfiguration.PLAYER_STATE_STARTED &&
+                        apc.getPlayerState() != AudioPlaybackConfiguration.PLAYER_STATE_STARTED) {
+                    if (mPrivilegedAlarmActiveCount++ == 0) {
+                        mSavedAlarmVolume = AudioSystem.getStreamVolumeIndex(
+                                AudioSystem.STREAM_ALARM, AudioSystem.DEVICE_OUT_SPEAKER);
+                        AudioSystem.setStreamVolumeIndex(AudioSystem.STREAM_ALARM,
+                                mMaxAlarmVolume, AudioSystem.DEVICE_OUT_SPEAKER);
+                    }
+                } else if (event != AudioPlaybackConfiguration.PLAYER_STATE_STARTED &&
+                        apc.getPlayerState() == AudioPlaybackConfiguration.PLAYER_STATE_STARTED) {
+                    if (--mPrivilegedAlarmActiveCount == 0) {
+                        if (AudioSystem.getStreamVolumeIndex(
+                                AudioSystem.STREAM_ALARM, AudioSystem.DEVICE_OUT_SPEAKER) ==
+                                mMaxAlarmVolume) {
+                            AudioSystem.setStreamVolumeIndex(AudioSystem.STREAM_ALARM,
+                                    mSavedAlarmVolume, AudioSystem.DEVICE_OUT_SPEAKER);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
     public void playerEvent(int piid, int event, int binderUid) {
         if (DEBUG) { Log.v(TAG, String.format("playerEvent(piid=%d, event=%d)", piid, event)); }
         final boolean change;
@@ -200,6 +241,7 @@ public final class PlaybackActivityMonitor
             }
             if (checkConfigurationCaller(piid, apc, binderUid)) {
                 //TODO add generation counter to only update to the latest state
+                checkVolumeForPrivilegedAlarm(apc, event);
                 change = apc.handleStateEvent(event);
             } else {
                 Log.e(TAG, "Error handling event " + event);
@@ -228,6 +270,7 @@ public final class PlaybackActivityMonitor
                         "releasing player piid:" + piid));
                 mPlayers.remove(new Integer(piid));
                 mDuckingManager.removeReleased(apc);
+                checkVolumeForPrivilegedAlarm(apc, AudioPlaybackConfiguration.PLAYER_STATE_RELEASED);
                 apc.handleStateEvent(AudioPlaybackConfiguration.PLAYER_STATE_RELEASED);
             }
         }