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 AUDIO_CLIENT_TRACKER_CALLBCK_SERVICE_H 17 #define AUDIO_CLIENT_TRACKER_CALLBCK_SERVICE_H 18 19 #include "standard_client_tracker_stub.h" 20 #include "audio_stream_manager.h" 21 22 namespace OHOS { 23 namespace AudioStandard { 24 25 class AudioClientTrackerCallbackService : public StandardClientTrackerStub { 26 public: 27 AudioClientTrackerCallbackService(); 28 virtual ~AudioClientTrackerCallbackService(); 29 30 void SetClientTrackerCallback(const std::weak_ptr<AudioClientTracker> &callback); 31 void UnsetClientTrackerCallback(); 32 33 int32_t MuteStreamImpl(const StreamSetStateEventInternal &streamSetStateEventInternal) override; 34 int32_t UnmuteStreamImpl(const StreamSetStateEventInternal &streamSetStateEventInternal) override; 35 int32_t PausedStreamImpl(const StreamSetStateEventInternal &streamSetStateEventInternal) override; 36 int32_t ResumeStreamImpl(const StreamSetStateEventInternal &streamSetStateEventInternal) override; 37 38 int32_t SetLowPowerVolumeImpl(float volume) override; 39 int32_t GetLowPowerVolumeImpl(float &volume) override; 40 int32_t SetOffloadModeImpl(int32_t state, bool isAppBack) override; 41 int32_t UnsetOffloadModeImpl() override; 42 int32_t GetSingleStreamVolumeImpl(float &volume) override; 43 private: 44 std::mutex clientTrackerMutex_; 45 std::weak_ptr<AudioClientTracker> callback_; 46 }; 47 } // namespace AudioStandard 48 } // namespace OHOS 49 #endif // AUDIO_CLIENT_TRACKER_CALLBCK_SERVICE_H 50