1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef POLICY_HANDLER_H 17 #define POLICY_HANDLER_H 18 19 #include <sstream> 20 #include <map> 21 #include <mutex> 22 #include <vector> 23 24 #include "audio_info.h" 25 #include "i_policy_provider_ipc.h" 26 27 namespace OHOS { 28 namespace AudioStandard { 29 class PolicyHandler { 30 public: 31 static PolicyHandler& GetInstance(); 32 33 ~PolicyHandler(); 34 35 void Dump(std::stringstream &dumpString); 36 37 // would be called only once 38 bool ConfigPolicyProvider(const sptr<IPolicyProviderIpc> policyProvider); 39 40 bool GetProcessDeviceInfo(const AudioProcessConfig &config, DeviceInfo &deviceInfo); 41 42 bool InitVolumeMap(); 43 44 bool GetSharedVolume(AudioStreamType streamType, DeviceType deviceType, Volume &vol); 45 46 void SetActiveOutputDevice(DeviceType deviceType); 47 48 DeviceType GetActiveOutPutDevice(); 49 50 private: 51 PolicyHandler(); 52 sptr<IPolicyProviderIpc> iPolicyProvider_ = nullptr; 53 54 private: 55 std::shared_ptr<AudioSharedMemory> policyVolumeMap_ = nullptr; 56 volatile Volume *volumeVector_ = nullptr; 57 DeviceType deviceType_ = DEVICE_TYPE_SPEAKER; 58 }; 59 } // namespace AudioStandard 60 } // namespace OHOS 61 #endif // POLICY_HANDLER_H 62