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 class AudioObserver : 30 public AudioStandard::AudioRendererStateChangeCallback, 31 public AudioStandard::AudioRingerModeCallback, 32 public AudioStandard::VolumeKeyEventCallback, 33 public AudioStandard::AudioManagerAudioSceneChangedCallback, 34 public AudioStandard::AudioPreferredOutputDeviceChangeCallback { 35 public: 36 void OnRendererStateChange( 37 const std::vector<std::shared_ptr<AudioStandard::AudioRendererChangeInfo>> &audioRendererChangeInfos) override; 38 void OnRingerModeUpdated(const AudioStandard::AudioRingerMode &ringerMode) override; 39 void OnVolumeKeyEvent(AudioStandard::VolumeEvent volumeEvent) override; 40 void OnAudioSceneChange(const AudioStandard::AudioScene audioScene) override; 41 void OnPreferredOutputDeviceUpdated( 42 const std::vector<std::shared_ptr<AudioStandard::AudioDeviceDescriptor>> &descs) override; 43 private: 44 int32_t mode_ = -1; 45 void MarshallingAudioRendererChangeInfo( 46 const std::shared_ptr<AudioStandard::AudioRendererChangeInfo> &audioRendererChangeInfo, 47 nlohmann::json &payload); 48 bool IsRenderStateChange(const std::shared_ptr<AudioStandard::AudioRendererChangeInfo>& info); 49 std::unordered_map<int32_t, AudioStandard::RendererState> renderState_; 50 std::unordered_map<int32_t, int32_t> volumeState_; 51 }; 52 } // namespace ResourceSchedule 53 } // namespace OHOS 54 #endif 55 #endif // RESSCHED_SCHED_CONTROLLER_OBSERVER_INCLUDE_AUDIO_OBSERVER_H 56