1 /* 2 * Copyright (c) 2021-2022 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 ST_AUDIO_POLICY_SERVER_H 17 #define ST_AUDIO_POLICY_SERVER_H 18 19 #include <mutex> 20 #include <pthread.h> 21 22 #include "audio_interrupt_callback.h" 23 #include "audio_policy_manager_stub.h" 24 #include "audio_policy_service.h" 25 #include "audio_session_callback.h" 26 #include "i_audio_volume_key_event_callback.h" 27 #include "iremote_stub.h" 28 #include "system_ability.h" 29 #include "audio_service_dump.h" 30 31 namespace OHOS { 32 namespace AudioStandard { 33 class AudioPolicyServer : public SystemAbility, public AudioPolicyManagerStub, public AudioSessionCallback { 34 DECLARE_SYSTEM_ABILITY(AudioPolicyServer); 35 public: 36 DISALLOW_COPY_AND_MOVE(AudioPolicyServer); 37 38 explicit AudioPolicyServer(int32_t systemAbilityId, bool runOnCreate = true); 39 40 virtual ~AudioPolicyServer() = default; 41 42 void OnDump() override; 43 void OnStart() override; 44 void OnStop() override; 45 46 int32_t SetStreamVolume(AudioStreamType streamType, float volume) override; 47 48 float GetStreamVolume(AudioStreamType streamType) override; 49 50 int32_t SetStreamMute(AudioStreamType streamType, bool mute) override; 51 52 bool GetStreamMute(AudioStreamType streamType) override; 53 54 bool IsStreamActive(AudioStreamType streamType) override; 55 56 std::vector<sptr<AudioDeviceDescriptor>> GetDevices(DeviceFlag deviceFlag) override; 57 58 int32_t SetDeviceActive(InternalDeviceType deviceType, bool active) override; 59 60 bool IsDeviceActive(InternalDeviceType deviceType) override; 61 62 int32_t SetRingerMode(AudioRingerMode ringMode) override; 63 64 AudioRingerMode GetRingerMode() override; 65 66 int32_t SetAudioScene(AudioScene audioScene) override; 67 68 AudioScene GetAudioScene() override; 69 70 int32_t SetRingerModeCallback(const int32_t clientId, const sptr<IRemoteObject> &object) override; 71 72 int32_t UnsetRingerModeCallback(const int32_t clientId) override; 73 74 int32_t SetDeviceChangeCallback(const int32_t clientId, const sptr<IRemoteObject> &object) override; 75 76 int32_t UnsetDeviceChangeCallback(const int32_t clientId) override; 77 78 int32_t SetAudioInterruptCallback(const uint32_t sessionID, const sptr<IRemoteObject> &object) override; 79 80 int32_t UnsetAudioInterruptCallback(const uint32_t sessionID) override; 81 82 int32_t ActivateAudioInterrupt(const AudioInterrupt &audioInterrupt) override; 83 84 int32_t DeactivateAudioInterrupt(const AudioInterrupt &audioInterrupt) override; 85 86 int32_t SetAudioManagerInterruptCallback(const uint32_t clientID, const sptr<IRemoteObject> &object) override; 87 88 int32_t UnsetAudioManagerInterruptCallback(const uint32_t clientID) override; 89 90 int32_t RequestAudioFocus(const uint32_t clientID, const AudioInterrupt &audioInterrupt) override; 91 92 int32_t AbandonAudioFocus(const uint32_t clientID, const AudioInterrupt &audioInterrupt) override; 93 94 AudioStreamType GetStreamInFocus() override; 95 96 int32_t GetSessionInfoInFocus(AudioInterrupt &audioInterrupt) override; 97 98 int32_t SetVolumeKeyEventCallback(const int32_t clientPid, const sptr<IRemoteObject> &object) override; 99 100 int32_t UnsetVolumeKeyEventCallback(const int32_t clientPid) override; 101 102 void OnSessionRemoved(const uint32_t sessionID) override; 103 104 int32_t Dump(int32_t fd, const std::vector<std::u16string> &args) override; 105 protected: 106 void OnAddSystemAbility(int32_t systemAbilityId, const std::string& deviceId) override; 107 void OnRemoveSystemAbility(int32_t systemAbilityId, const std::string& deviceId) override; 108 private: 109 void PrintOwnersLists(); 110 int32_t ProcessFocusEntry(const AudioInterrupt &incomingInterrupt); 111 bool ProcessCurActiveInterrupt(std::list<AudioInterrupt>::iterator &iterActive, const AudioInterrupt &incoming); 112 bool ProcessPendingInterrupt(std::list<AudioInterrupt>::iterator &iterPending, const AudioInterrupt &incoming); 113 void AddToCurActiveList(const AudioInterrupt &audioInterrupt); 114 void UnduckCurActiveList(const AudioInterrupt &exitingInterrupt); 115 void ResumeUnduckPendingList(const AudioInterrupt &exitingInterrupt); 116 void NotifyFocusGranted(const uint32_t clientID, const AudioInterrupt &audioInterrupt); 117 int32_t NotifyFocusAbandoned(const uint32_t clientID, const AudioInterrupt &audioInterrupt); 118 int32_t SetStreamVolume(AudioStreamType streamType, float volume, bool isUpdateUi); 119 void RegisterAudioServerDeathRecipient(); 120 void AudioServerDied(pid_t pid); 121 void GetPolicyData(PolicyData &policyData); 122 void SubscribeKeyEvents(); 123 void InitKVStore(); 124 void ConnectServiceAdapter(); 125 126 static float MapVolumeToHDI(int32_t volume); 127 static int32_t ConvertVolumeToInt(float volume); 128 129 AudioPolicyService& mPolicyService; 130 std::unordered_map<int32_t, std::shared_ptr<VolumeKeyEventCallback>> volumeChangeCbsMap_; 131 std::mutex ringerModeMutex_; 132 std::mutex interruptMutex_; 133 std::mutex volumeKeyEventMutex_; 134 uint32_t clientOnFocus_; 135 std::unique_ptr<AudioInterrupt> focussedAudioInterruptInfo_; 136 137 std::unordered_map<uint32_t, std::shared_ptr<AudioInterruptCallback>> policyListenerCbsMap_; 138 std::unordered_map<uint32_t, std::shared_ptr<AudioInterruptCallback>> audioManagerListenerCbsMap_; 139 std::list<AudioInterrupt> curActiveOwnersList_; 140 std::list<AudioInterrupt> pendingOwnersList_; 141 std::unordered_map<AudioStreamType, int32_t> interruptPriorityMap_; 142 std::unordered_map<int32_t, std::shared_ptr<AudioRingerModeCallback>> ringerModeListenerCbsMap_; 143 static constexpr int32_t MAX_VOLUME_LEVEL = 15; 144 static constexpr int32_t MIN_VOLUME_LEVEL = 0; 145 static constexpr int32_t CONST_FACTOR = 100; 146 static constexpr int32_t VOLUME_CHANGE_FACTOR = 1; 147 static constexpr int32_t FIRST_PRIORITY = 1; 148 static constexpr int32_t SECOND_PRIORITY = 2; 149 static constexpr int32_t THIRD_PRIORITY = 3; 150 static constexpr int32_t VOLUME_KEY_DURATION = 0; 151 }; 152 } // namespace AudioStandard 153 } // namespace OHOS 154 #endif // ST_AUDIO_POLICY_SERVER_H 155