1 /* 2 * Copyright (c) 2022-2023 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 RESSCHED_SCHED_CONTROLLER_OBSERVER_INCLUDE_AUDIO_OBSERVER_H 17 #define RESSCHED_SCHED_CONTROLLER_OBSERVER_INCLUDE_AUDIO_OBSERVER_H 18 #ifdef RESSCHED_AUDIO_FRAMEWORK_ENABLE 19 #include <string> 20 #include <unordered_map> 21 22 #include "nlohmann/json.hpp" 23 #include "audio_stream_manager.h" 24 #include "audio_system_manager.h" 25 #include "audio_routing_manager.h" 26 27 namespace OHOS { 28 namespace ResourceSchedule { 29 struct ProcessRenderState { 30 int32_t pid; 31 int32_t uid; 32 std::unordered_set<int32_t> renderRunningSessionSet; 33 }; 34 class AudioObserver : 35 public AudioStandard::AudioRendererStateChangeCallback, 36 public AudioStandard::AudioRingerModeCallback, 37 public AudioStandard::VolumeKeyEventCallback, 38 public AudioStandard::AudioManagerAudioSceneChangedCallback, 39 public AudioStandard::AudioPreferredOutputDeviceChangeCallback { 40 public: 41 void OnRendererStateChange( 42 const std::vector<std::shared_ptr<AudioStandard::AudioRendererChangeInfo>> &audioRendererChangeInfos) override; 43 void OnRingerModeUpdated(const AudioStandard::AudioRingerMode &ringerMode) override; 44 void OnVolumeKeyEvent(AudioStandard::VolumeEvent volumeEvent) override; 45 void OnAudioSceneChange(const AudioStandard::AudioScene audioScene) override; 46 void OnPreferredOutputDeviceUpdated( 47 const std::vector<std::shared_ptr<AudioStandard::AudioDeviceDescriptor>> &descs) override; 48 void Init(); 49 private: 50 int32_t mode_ = -1; 51 void MarshallingAudioRendererChangeInfo( 52 const std::shared_ptr<AudioStandard::AudioRendererChangeInfo> &audioRendererChangeInfo, 53 nlohmann::json &payload); 54 bool IsRenderStateChange(const std::shared_ptr<AudioStandard::AudioRendererChangeInfo>& info); 55 void HandleInnerAudioStateChange( 56 const std::shared_ptr<AudioStandard::AudioRendererChangeInfo> &audioRendererChangeInfo, 57 std::unordered_set<int32_t>& newRunningPid, std::unordered_set<int32_t>& newStopSessionPid); 58 void ProcessRunningSessionState( 59 const std::shared_ptr<AudioStandard::AudioRendererChangeInfo> &audioRendererChangeInfo, 60 std::unordered_set<int32_t>& newRunningPid); 61 void ProcessStopSessionState( 62 const std::shared_ptr<AudioStandard::AudioRendererChangeInfo> &audioRendererChangeInfo, 63 std::unordered_set<int32_t>& newStopSessionPid); 64 void HandleStartAudioStateEvent(const std::unordered_set<int32_t>& newRunningPid); 65 void HandleStopAudioStateEvent(const std::unordered_set<int32_t>& newStopSessionPid); 66 void MarshallingInnerAudioRendererChangeInfo(int32_t pid, nlohmann::json &payload); 67 bool IsValidPid(pid_t pid); 68 69 std::unordered_map<int32_t, AudioStandard::RendererState> renderState_; 70 std::unordered_map<int32_t, int32_t> volumeState_; 71 std::unordered_map<int32_t, ProcessRenderState> processRenderStateMap_; 72 }; 73 } // namespace ResourceSchedule 74 } // namespace OHOS 75 #endif 76 #endif // RESSCHED_SCHED_CONTROLLER_OBSERVER_INCLUDE_AUDIO_OBSERVER_H 77