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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 #include <stdint.h>
     19 #include <sys/types.h>
     20 #include <utils/Timers.h>
     21 #include <utils/Errors.h>
     22 #include <utils/KeyedVector.h>
     23 #include <hardware_legacy/AudioPolicyManagerBase.h>
     24 
     25 
     26 namespace android {
     27 
     28 // ----------------------------------------------------------------------------
     29 
     30 class AudioPolicyManager: public AudioPolicyManagerBase
     31 {
     32 
     33 public:
     34                 AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
     35                 : AudioPolicyManagerBase(clientInterface) {}
     36 
     37         virtual ~AudioPolicyManager() {}
     38 
     39 protected:
     40 
     41         // true is current platform implements a back microphone
     42         virtual bool hasBackMicrophone() const { return true; }
     43 
     44 #ifdef WITH_A2DP
     45         // true is current platform supports suplication of notifications and ringtones over A2DP output
     46         virtual bool a2dpUsedForSonification() const { return true; }
     47 #endif
     48 
     49         // return appropriate device for streams handled by the specified strategy according to current
     50         // phone state, connected devices...
     51         virtual uint32_t getDeviceForStrategy(routing_strategy strategy, bool fromCache = true);
     52         virtual float computeVolume(int stream, int index, audio_io_handle_t output, uint32_t device);
     53 };
     54 
     55 };
     56