1 /* 2 * Copyright (c) 2024 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_SESSION_H 17 #define ST_AUDIO_SESSION_H 18 19 #include <mutex> 20 21 #include "audio_interrupt_info.h" 22 #include "audio_session_info.h" 23 24 namespace OHOS { 25 namespace AudioStandard { 26 enum class AudioSessionState { 27 SESSION_INVALID = -1, 28 SESSION_NEW = 0, 29 SESSION_ACTIVE = 1, 30 SESSION_DEACTIVE = 2, 31 SESSION_RELEASED = 3, 32 }; 33 34 class AudioSessionStateMonitor; 35 36 class AudioSession { 37 public: 38 AudioSession(const int32_t callerPid, const AudioSessionStrategy &strategy, 39 const std::shared_ptr<AudioSessionStateMonitor> audioSessionStateMonitor); 40 ~AudioSession(); 41 42 int32_t Activate(); 43 int32_t Deactivate(); 44 AudioSessionState GetSessionState(); 45 void SetSessionStrategy(const AudioSessionStrategy strategy); 46 AudioSessionStrategy GetSessionStrategy(); 47 int32_t AddAudioInterrpt(const std::pair<AudioInterrupt, AudioFocuState> interruptPair); 48 int32_t RemoveAudioInterrpt(const std::pair<AudioInterrupt, AudioFocuState> interruptPair); 49 int32_t RemoveAudioInterrptByStreamId(const uint32_t &streamId); 50 bool IsAudioSessionEmpty(); 51 bool IsAudioRendererEmpty(); 52 53 private: 54 std::mutex sessionMutex_; 55 56 int32_t callerPid_; 57 AudioSessionStrategy strategy_; 58 std::weak_ptr<AudioSessionStateMonitor> audioSessionStateMonitor_; 59 60 AudioSessionState state_ = AudioSessionState::SESSION_INVALID; 61 std::unordered_map<uint32_t, std::pair<AudioInterrupt, AudioFocuState>> interruptMap_; 62 }; 63 } // namespace AudioStandard 64 } // namespace OHOS 65 66 #endif // ST_AUDIO_SESSION_SERVICE_H