audio policy: use factory to create audio policy manager

Use the class factory to create the audio policy mamager
instead of AudioPolicyManager class constructor and
use a pointer to an AudioPolicyInterface.

Change-Id: Ibb5a8eee5d597db67cf13f279c909181cfee9949

CleanSpec.mk

@@ -55,6 +55,10 @@ $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicy
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicy.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicyservice_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicymanager_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicyservice.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicymanager.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicyservice_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicymanager_intermediates)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST

services/audiopolicy/Android.mk

@@ -46,8 +46,8 @@ LOCAL_CFLAGS += -fvisibility=hidden
 
 include $(BUILD_SHARED_LIBRARY)
 
+
 ifneq ($(USE_LEGACY_AUDIO_POLICY), 1)
-ifneq ($(USE_CUSTOM_AUDIO_POLICY), 1)
 
 include $(CLEAR_VARS)
 
@@ -62,6 +62,20 @@ LOCAL_SHARED_LIBRARIES := \
 LOCAL_STATIC_LIBRARIES := \
     libmedia_helper
 
+LOCAL_MODULE:= libaudiopolicymanagerdefault
+
+include $(BUILD_SHARED_LIBRARY)
+
+ifneq ($(USE_CUSTOM_AUDIO_POLICY), 1)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    AudioPolicyFactory.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudiopolicymanagerdefault
+
 LOCAL_MODULE:= libaudiopolicymanager
 
 include $(BUILD_SHARED_LIBRARY)

services/audiopolicy/AudioPolicyFactory.cpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "AudioPolicyManager.h"
+
+namespace android {
+
+extern "C" AudioPolicyInterface* createAudioPolicyManager(
+        AudioPolicyClientInterface *clientInterface)
+{
+    return new AudioPolicyManager(clientInterface);
+}
+
+extern "C" void destroyAudioPolicyManager(AudioPolicyInterface *interface)
+{
+    delete interface;
+}
+
+}; // namespace android

services/audiopolicy/AudioPolicyService.cpp

@@ -108,7 +108,7 @@ AudioPolicyService::AudioPolicyService()
     ALOGI("AudioPolicyService CSTOR in new mode");
 
     mAudioPolicyClient = new AudioPolicyClient(this);
-    mAudioPolicyManager = new AudioPolicyManager(mAudioPolicyClient);
+    mAudioPolicyManager = createAudioPolicyManager(mAudioPolicyClient);
 #endif
 
     // load audio pre processing modules
@@ -145,7 +145,7 @@ AudioPolicyService::~AudioPolicyService()
         audio_policy_dev_close(mpAudioPolicyDev);
     }
 #else
-    delete mAudioPolicyManager;
+    destroyAudioPolicyManager(mAudioPolicyManager);
     delete mAudioPolicyClient;
 #endif
 

services/audiopolicy/AudioPolicyService.h

@@ -539,7 +539,7 @@ class AudioPolicyService :
     sp<AudioCommandThread> mOutputCommandThread;    // process stop and release output
     struct audio_policy_device *mpAudioPolicyDev;
     struct audio_policy *mpAudioPolicy;
-    AudioPolicyManager *mAudioPolicyManager;
+    AudioPolicyInterface *mAudioPolicyManager;
     AudioPolicyClient *mAudioPolicyClient;
 
     KeyedVector< audio_source_t, InputSourceDesc* > mInputSources;