policy-hal: add custom audio policy

- this change contains all the fixes went in
  audio policy made by QTI as below

 audio_policyhal: SSR support for compress offload
 Change-Id: Idc8f6690d7c06883dbfcf55b073d4456a8c27e5c

 audio: Fix playback of AAC clips in offload mode instead of deep buffer
 Change-Id: Ib946830bc2f6b9cec33c8f0943910e3aeeb6fa6e

 audio: primary desc check for sonification_respectful
 Change-Id: I5d7aef3b29791823c277452e71e0cd43f91b2ddd

 audio_policy: Fix for mute count mismatch for sonification strategy
 Change-Id: Id4f328e2f9fc6820cecfbd73df11c871f8587aad

 audio: execute setVoiceVolume for USB device during inCall usecase
 Change-Id: Ia4917807103d1cf406a03e1d6d3dada470401737

 audio_policy: handle in call sonification for attached outputs of duplicating output
 Change-Id: I91968b33c4d93b13aae421654b2740c46269d55e

 audio: Fix for Sound from handset leaks to speaker
 Change-Id: Id2fd20de7a279f74e38a9aefe91e17b36cc9da6f

 audio: Fix media server crash at the start of voice call
 Change-Id: Ibe2d19acbed2ca44ab193ae0b613fae899f02ebb

 audio_policy: handle incall sound notifications on non primary outputs
 Change-Id: I2eec3872a2dcd10750ac20f69791a5bb51b37d8b

 Audiopolicymanager: handle incall sonification without checking output refCount
 Change-Id: I0eab939b32fe47388e2515ab56154d540e9df55c

 audio: use FLAG_FAST for non-music stream on WFD
 Change-Id: Id2f5965c8f5623646b2adb2aa892a9929f3bc5bb

 audiopolicy: optimize voice call start latency
 Chnage-Id: I77cb2ddb5a9154ffd2ac1620351992686e580f8a

Change-Id: I8a5991f09063f8e00b9a1308c3307c239f3ce487
diff --git a/policy_hal/AudioPolicyManager.h b/policy_hal/AudioPolicyManager.h
index e37f83f..b8c9b6e 100644
--- a/policy_hal/AudioPolicyManager.h
+++ b/policy_hal/AudioPolicyManager.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
  * Not a contribution.
  *
  * Copyright (C) 2009 The Android Open Source Project
@@ -18,13 +18,32 @@
  */
 
 
-#include <audiopolicy/AudioPolicyManager.h>
-#include <audiopolicy/audio_policy_conf.h>
-
+#include <audiopolicy/managerdefault/AudioPolicyManager.h>
+#include <audio_policy_conf.h>
+#include <Volume.h>
 
 
 namespace android {
+#ifndef FLAC_OFFLOAD_ENABLED
+#define AUDIO_FORMAT_FLAC 0x1D000000UL
+#endif
 
+#ifndef WMA_OFFLOAD_ENABLED
+#define AUDIO_FORMAT_WMA 0x13000000UL
+#define AUDIO_FORMAT_WMA_PRO 0x14000000UL
+#endif
+
+#ifndef ALAC_OFFLOAD_ENABLED
+#define AUDIO_FORMAT_ALAC 0x1F000000UL
+#endif
+
+#ifndef APE_OFFLOAD_ENABLED
+#define AUDIO_FORMAT_APE 0x20000000UL
+#endif
+
+#ifndef AFE_PROXY_ENABLED
+#define AUDIO_DEVICE_OUT_PROXY 0x40000
+#endif
 // ----------------------------------------------------------------------------
 
 class AudioPolicyManagerCustom: public AudioPolicyManager
@@ -34,75 +53,55 @@
                 AudioPolicyManagerCustom(AudioPolicyClientInterface *clientInterface)
                 : AudioPolicyManager(clientInterface) {
                     mHdmiAudioDisabled = false;
-                    mHdmiAudioEvent = false; }
+                    mHdmiAudioEvent = false;}
 
         virtual ~AudioPolicyManagerCustom() {}
 
-        virtual status_t setDeviceConnectionState(audio_devices_t device,
-                                                          audio_policy_dev_state_t state,
-                                                          const char *device_address);
-        virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
-                                                                              const char *device_address);
+        status_t setDeviceConnectionStateInt(audio_devices_t device,
+                                          audio_policy_dev_state_t state,
+                                          const char *device_address,
+                                          const char *device_name);
         virtual void setPhoneState(audio_mode_t state);
-        virtual void setForceUse(audio_policy_force_use_t usage,
-                                 audio_policy_forced_cfg_t config);
-        virtual status_t stopOutput(audio_io_handle_t output,
-                                    audio_stream_type_t stream,
-                                    int session = 0);
-        virtual audio_io_handle_t getInput(audio_source_t inputSource,
-                                            uint32_t samplingRate,
-                                            audio_format_t format,
-                                            audio_channel_mask_t channelMask,
-                                            audio_session_t session,
-                                            audio_input_flags_t flags);
 
-        // indicates to the audio policy manager that the input starts being used.
-        virtual status_t startInput(audio_io_handle_t input,
-                                    audio_session_t session);
 
-        // indicates to the audio policy manager that the input stops being used.
-        virtual status_t stopInput(audio_io_handle_t input,
-                                   audio_session_t session);
-        virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                              int index,
-                                              audio_devices_t device);
         virtual bool isOffloadSupported(const audio_offload_info_t& offloadInfo);
 
         // true if given state represents a device in a telephony or VoIP call
-        virtual bool isStateInCall(int state);
 protected:
-        // return the strategy corresponding to a given stream type
-        static routing_strategy getStrategy(audio_stream_type_t stream);
 
-        // return appropriate device for streams handled by the specified strategy according to current
-        // phone state, connected devices...
-        // if fromCache is true, the device is returned from mDeviceForStrategy[],
-        // otherwise it is determine by current state
-        // (device connected,phone state, force use, a2dp output...)
-        // This allows to:
-        //  1 speed up process when the state is stable (when starting or stopping an output)
-        //  2 access to either current device selection (fromCache == true) or
-        // "future" device selection (fromCache == false) when called from a context
-        //  where conditions are changing (setDeviceConnectionState(), setPhoneState()...) AND
-        //  before updateDevicesAndOutputs() is called.
-        virtual audio_devices_t getDeviceForStrategy(routing_strategy strategy,
-                                                     bool fromCache);
-        // select input device corresponding to requested audio source
-        virtual audio_devices_t getDeviceForInputSource(audio_source_t inputSource);
+         status_t checkAndSetVolume(audio_stream_type_t stream,
+                                                   int index,
+                                                   const sp<SwAudioOutputDescriptor>& outputDesc,
+                                                   audio_devices_t device,
+                                                   int delayMs = 0, bool force = false);
 
-        // compute the actual volume for a given stream according to the requested index and a particular
-        // device
-        virtual float computeVolume(audio_stream_type_t stream, int index,
-                                    audio_io_handle_t output, audio_devices_t device);
+        // selects the most appropriate device on output for current state
+        // must be called every time a condition that affects the device choice for a given output is
+        // changed: connected device, phone state, force use, output start, output stop..
+        // see getDeviceForStrategy() for the use of fromCache parameter
+        audio_devices_t getNewOutputDevice(const sp<AudioOutputDescriptor>& outputDesc,
+                                           bool fromCache);
+        // returns true if given output is direct output
+        bool isDirectOutput(audio_io_handle_t output);
 
-        // check that volume change is permitted, compute and send new volume to audio hardware
-        status_t checkAndSetVolume(audio_stream_type_t stream, int index, audio_io_handle_t output,
-                                   audio_devices_t device, int delayMs = 0, bool force = false);
+        // if argument "device" is different from AUDIO_DEVICE_NONE,  startSource() will force
+        // the re-evaluation of the output device.
+        status_t startSource(sp<SwAudioOutputDescriptor> outputDesc,
+                             audio_stream_type_t stream,
+                             audio_devices_t device,
+                             uint32_t *delayMs);
+         status_t stopSource(sp<SwAudioOutputDescriptor> outputDesc,
+                            audio_stream_type_t stream,
+                            bool forceDeviceUpdate);
+        // event is one of STARTING_OUTPUT, STARTING_BEACON, STOPPING_OUTPUT, STOPPING_BEACON   313
+        // returns 0 if no mute/unmute event happened, the largest latency of the device where   314
+        //   the mute/unmute happened 315
+        uint32_t handleEventForBeacon(int){return 0;}
+        uint32_t setBeaconMute(bool){return 0;}
 
-        // returns the category the device belongs to with regard to volume curve management
-        static device_category getDeviceCategory(audio_devices_t device);
-
-
+        // handle special cases for sonification strategy while in call: mute streams or replace by
+        // a special tone in the device used for communication
+        void handleIncallSonification(audio_stream_type_t stream, bool starting, bool stateChange, audio_io_handle_t output);
         //parameter indicates of HDMI speakers disabled
         bool mHdmiAudioDisabled;
         //parameter indicates if HDMI plug in/out detected
@@ -119,20 +118,16 @@
         // internal method to return the output handle for the given device and format
         audio_io_handle_t getOutputForDevice(
                 audio_devices_t device,
+                audio_session_t session,
                 audio_stream_type_t stream,
                 uint32_t samplingRate,
                 audio_format_t format,
                 audio_channel_mask_t channelMask,
                 audio_output_flags_t flags,
                 const audio_offload_info_t *offloadInfo);
-
         // Used for voip + voice concurrency usecase
         int mPrevPhoneState;
         int mvoice_call_state;
-#ifdef RECORD_PLAY_CONCURRENCY
-        // Used for record + playback concurrency
-        bool mIsInputRequestOnProgress;
-#endif
 
 };