1 /* 2 * Copyright (c) 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 AV_SESSION_BACKGROUND_AUDIO_CONTROLLER_H 17 #define AV_SESSION_BACKGROUND_AUDIO_CONTROLLER_H 18 19 #include <mutex> 20 #include <set> 21 #include "avsession_info.h" 22 #include "audio_adapter.h" 23 #include "app_manager_adapter.h" 24 #include "background_task_mgr_helper.h" 25 #include "continuous_task_callback_info.h" 26 27 namespace OHOS::AVSession { 28 class AVSessionService; 29 class BackgroundAudioController : public SessionListener { 30 public: 31 using BackgroundMode = AppExecFwk::BackgroundMode; 32 using StreamUsage = AudioStandard::StreamUsage; 33 using ContinuousTaskCallbackInfo = BackgroundTaskMgr::ContinuousTaskCallbackInfo; 34 35 BackgroundAudioController(); 36 ~BackgroundAudioController() override; 37 38 void OnSessionCreate(const AVSessionDescriptor& descriptor) override; 39 void OnSessionRelease(const AVSessionDescriptor& descriptor) override; OnTopSessionChange(const AVSessionDescriptor & descriptor)40 void OnTopSessionChange(const AVSessionDescriptor& descriptor) override {} OnAudioSessionChecked(const int32_t uid)41 void OnAudioSessionChecked(const int32_t uid) override {} 42 43 void Init(AVSessionService *ptr); 44 45 void HandleAudioStreamRendererStateChange(const AudioRendererChangeInfos& infos); 46 void HandleAppBackgroundState(int32_t uid, int32_t pid); 47 48 private: 49 bool HasAVSession(int32_t uid); 50 bool IsBackgroundMode(int32_t creatorUid, BackgroundMode backgroundMode) const; 51 52 std::recursive_mutex lock_; 53 std::set<int32_t> sessionUIDs_; 54 AVSessionService *ptr_; 55 }; 56 } 57 #endif // AV_SESSION_BACKGROUND_AUDIO_CONTROLLER_H 58