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 VIDEO_PROCESSING_CALLBACK_NATIVE_H 17 #define VIDEO_PROCESSING_CALLBACK_NATIVE_H 18 19 #include <atomic> 20 #include <functional> 21 #include <mutex> 22 23 #include "video_processing_types.h" 24 25 namespace OHOS { 26 namespace Media { 27 namespace VideoProcessingEngine { 28 class VideoProcessingCallbackNative { 29 public: 30 VideoProcessingCallbackNative() = default; 31 virtual ~VideoProcessingCallbackNative() = default; 32 VideoProcessingCallbackNative(const VideoProcessingCallbackNative&) = delete; 33 VideoProcessingCallbackNative& operator=(const VideoProcessingCallbackNative&) = delete; 34 VideoProcessingCallbackNative(VideoProcessingCallbackNative&&) = delete; 35 VideoProcessingCallbackNative& operator=(VideoProcessingCallbackNative&&) = delete; 36 37 VideoProcessing_ErrorCode BindOnError(OH_VideoProcessingCallback_OnError onError); 38 VideoProcessing_ErrorCode BindOnState(OH_VideoProcessingCallback_OnState onState); 39 VideoProcessing_ErrorCode BindOnNewOutputBuffer(OH_VideoProcessingCallback_OnNewOutputBuffer onNewOutputBuffer); 40 41 bool IsValid() const; 42 bool IsModifiable() const; 43 void LockModifiers(); 44 void UnlockModifiers(); 45 bool HasOnNewOutputBuffer() const; 46 47 void OnError(OH_VideoProcessing* instance, VideoProcessing_ErrorCode errorCode, void* userData) const; 48 void OnState(OH_VideoProcessing* instance, VideoProcessing_State state, void* userData) const; 49 void OnNewOutputBuffer(OH_VideoProcessing* instance, uint32_t index, void* userData) const; 50 51 protected: 52 VideoProcessing_ErrorCode BindFunction(std::function<void()>&& functionBinder); 53 54 mutable std::mutex lock_{}; 55 // Guarded by lock_ begin 56 std::atomic<bool> isValid_{false}; 57 std::atomic<bool> isModifiable_{true}; 58 OH_VideoProcessingCallback_OnError onError_{}; 59 OH_VideoProcessingCallback_OnState onState_{}; 60 OH_VideoProcessingCallback_OnNewOutputBuffer onNewOutputBuffer_{}; 61 // Guarded by lock_ end 62 }; 63 } // namespace VideoProcessingEngine 64 } // namespace Media 65 } // namespace OHOS 66 67 #endif // VIDEO_PROCESSING_CALLBACK_NATIVE_H 68