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 AUDIO_EFFECT_VOLUME_H 17 #define AUDIO_EFFECT_VOLUME_H 18 19 #include <cstdint> 20 #include <map> 21 #include <mutex> 22 23 namespace OHOS { 24 namespace AudioStandard { 25 class AudioEffectVolume { 26 public: 27 AudioEffectVolume(); 28 ~AudioEffectVolume(); 29 static std::shared_ptr<AudioEffectVolume> GetInstance(); 30 void SetDspVolume(const float volume); 31 float GetDspVolume(); 32 void SetSystemVolume(const int32_t systemVolumeType, const float systemVolume); 33 float GetSystemVolume(const int32_t systemVolumeType); 34 void SetStreamVolume(const std::string sessionID, float systemVolume); 35 float GetStreamVolume(const std::string sessionID); 36 int32_t StreamVolumeDelete(const std::string sessionID); 37 private: 38 float dspVolume_ = 1.0f; 39 std::mutex volumeMutex_; 40 std::map<std::string, float> SceneTypeToVolumeMap_; 41 std::map<std::string, float> SessionIDToVolumeMap_; 42 std::map<int32_t, float> SystemVolumeMap_; 43 }; 44 } // namespace AudioStandard 45 } // namespace OHOS 46 #endif // AUDIO_EFFECT_ROTATION_H