1 /* 2 * Copyright (c) 2025 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_INTERRUPT_ZONE_H 17 #define ST_AUDIO_INTERRUPT_ZONE_H 18 19 #include <set> 20 #include <list> 21 #include <string> 22 #include <unordered_map> 23 #include <functional> 24 #include "audio_interrupt_info.h" 25 #include "audio_interrupt_callback.h" 26 #include "audio_policy_client.h" 27 #include "i_audio_interrupt_event_dispatcher.h" 28 29 namespace OHOS { 30 namespace AudioStandard { 31 enum class AudioZoneFocusStrategy { 32 LOCAL_FOCUS_STRATEGY = 0, 33 DISTRIBUTED_FOCUS_STRATEGY, 34 }; 35 36 using GetZoneIdFunc = std::function<int32_t(int32_t, const std::string &, const std::string &)>; 37 using AudioFocusList = std::list<std::pair<AudioInterrupt, AudioFocuState>>; 38 using AudioFocusIterator = std::list<AudioFocusList::iterator>; 39 40 typedef struct { 41 int32_t zoneId; // Zone ID value should 0 on local device. 42 AudioZoneFocusStrategy focusStrategy; 43 std::set<int32_t> pids; // When Zone ID is 0, there does not need to be a value. 44 std::set<uint32_t> interruptCbStreamIdsMap; 45 std::set<int32_t> audioPolicyClientProxyCBClientPidMap; 46 std::unordered_map<uint32_t /* streamId */, std::shared_ptr<AudioInterruptCallback>> interruptCbsMap; 47 std::unordered_map<int32_t /* clientPid */, sptr<IAudioPolicyClient>> audioPolicyClientProxyCBMap; 48 AudioFocusList audioFocusInfoList; 49 } AudioInterruptZone; 50 51 class AudioInterruptService; 52 53 class AudioInterruptZoneManager { 54 protected: 55 friend class AudioInterruptService; 56 AudioInterruptZoneManager(); 57 virtual ~AudioInterruptZoneManager(); 58 59 void InitService(AudioInterruptService *service); 60 int32_t CreateAudioInterruptZone(const int32_t zoneId, AudioZoneFocusStrategy focusStrategy = 61 AudioZoneFocusStrategy::LOCAL_FOCUS_STRATEGY, bool checkPermission = true); 62 int32_t ReleaseAudioInterruptZone(const int32_t zoneId, GetZoneIdFunc func); 63 int32_t MigrateAudioInterruptZone(const int32_t zoneId, GetZoneIdFunc func); 64 int32_t InjectInterruptToAudiotZone(const int32_t zoneId, const AudioFocusList &interrupts); 65 int32_t InjectInterruptToAudiotZone(const int32_t zoneId, const std::string &deviceTag, 66 const AudioFocusList &interrupts); 67 int32_t GetAudioFocusInfoList(const int32_t zoneId, AudioFocusList &focusInfoList); 68 int32_t GetAudioFocusInfoList(const int32_t zoneId, const std::string &deviceTag, 69 AudioFocusList &focusInfoList); 70 71 private: 72 bool CheckAudioInterruptZonePermission(); 73 int32_t FindZoneByPid(int32_t pid); 74 void RemoveAudioZoneInterrupts(int32_t zoneId, const AudioFocusIterator &focus); 75 void TryActiveAudioFocusForZone(int32_t zoneId, AudioFocusList &activeFocusList); 76 void TryResumeAudioFocusForZone(int32_t zoneId); 77 AudioFocusIterator QueryAudioFocusFromZone(int32_t zoneId, const std::string &deviceTag); 78 void ForceStopAudioFocusInZone(int32_t zoneId, const AudioInterrupt &audioInterrupt); 79 void ForceStopAllAudioFocusInZone(std::shared_ptr<AudioInterruptZone> &zone); 80 81 AudioInterruptService *service_ = nullptr; 82 }; 83 } // namespace AudioStandard 84 } // namespace OHOS 85 86 #endif // ST_AUDIO_INTERRUPT_ZONE_H 87