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 IAUDIO_EVENT_CALLBACK_H 17 #define IAUDIO_EVENT_CALLBACK_H 18 19 #include "audio_event.h" 20 namespace OHOS { 21 namespace DistributedHardware { 22 class IAudioEventCallback { 23 public: 24 virtual ~IAudioEventCallback() = default; 25 virtual void NotifyEvent(const AudioEvent &event) = 0; 26 }; 27 } // DistributedHardware 28 } // OHOS 29 #endif // IAUDIO_EVENT_CALLBACK_H 30