Prevent notifications from muting accessibility prompts

When evaluating on which device a sound is to be played, the policy
  must consider which current routing strategy, if any, has priority
  for overriding the choice. Here the playback of notifications,
  when duplicated over speaker and headphones, was causing the
  accessibility prompt to be muted because the it was of a higher
  priority, and incompatible with the accessibility routing.
The fix consists in assigning a higher priority to the accessbility
  routing strategy over the notification routing strategy.

Bug 18834451

Change-Id: I8228b30a7d80bd61d1c223afb030d9421d4f33cf

1 files changed, 6 insertions, 6 deletions

diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 6d99640..7530dcc 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -3908,12 +3908,12 @@ audio_devices_t AudioPolicyManager::getNewOutputDevice(const sp<AudioOutputDescr
     //      use device for strategy phone
     // 3: the strategy for enforced audible is active but not enforced on the output:
     //      use the device for strategy enforced audible
-    // 4: the strategy sonification is active on the output:
+    // 4: the strategy accessibility is active on the output:
+    //      use device for strategy accessibility
+    // 5: the strategy sonification is active on the output:
     //      use device for strategy sonification
-    // 5: the strategy "respectful" sonification is active on the output:
+    // 6: the strategy "respectful" sonification is active on the output:
     //      use device for strategy "respectful" sonification
-    // 6: the strategy accessibility is active on the output:
-    //      use device for strategy accessibility
     // 7: the strategy media is active on the output:
     //      use device for strategy media
     // 8: the strategy DTMF is active on the output:
@@ -3928,12 +3928,12 @@ audio_devices_t AudioPolicyManager::getNewOutputDevice(const sp<AudioOutputDescr
         device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_ENFORCED_AUDIBLE)) {
         device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
+    } else if (isStrategyActive(outputDesc, STRATEGY_ACCESSIBILITY)) {
+        device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION)) {
         device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_SONIFICATION_RESPECTFUL)) {
         device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache);
-    } else if (isStrategyActive(outputDesc, STRATEGY_ACCESSIBILITY)) {
-        device = getDeviceForStrategy(STRATEGY_ACCESSIBILITY, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_MEDIA)) {
         device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
     } else if (isStrategyActive(outputDesc, STRATEGY_DTMF)) {