1 /* 2 * Copyright (c) 2021-2022 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 METADATA_OUTPUT_NAPI_H_ 17 #define METADATA_OUTPUT_NAPI_H_ 18 19 #include <cinttypes> 20 #include <securec.h> 21 22 #include "camera_log.h" 23 #include "napi/native_api.h" 24 #include "napi/native_node_api.h" 25 26 #include "input/camera_manager.h" 27 #include "input/camera_info.h" 28 29 #include "hilog/log.h" 30 #include "camera_napi_utils.h" 31 32 #include <fstream> 33 #include <iostream> 34 #include <sstream> 35 #include <vector> 36 37 #include <fcntl.h> 38 #include <sys/stat.h> 39 #include <sys/time.h> 40 #include <sys/types.h> 41 42 namespace OHOS { 43 namespace CameraStandard { 44 static const char CAMERA_METADATA_OUTPUT_NAPI_CLASS_NAME[] = "MetadataOutput"; 45 46 class MetadataOutputCallback : public MetadataObjectCallback { 47 public: 48 explicit MetadataOutputCallback(napi_env env); 49 ~MetadataOutputCallback() = default; 50 51 void OnMetadataObjectsAvailable(std::vector<sptr<MetadataObject>> metaObjects) const override; 52 void SetCallbackRef(const std::string &eventType, const napi_ref &callbackRef); 53 54 private: 55 void OnMetadataObjectsAvailableCallback(const std::vector<sptr<MetadataObject>> metadataObjList) const; 56 napi_env env_; 57 napi_ref metadataObjectsAvailableCallbackRef_ = nullptr; 58 }; 59 60 struct MetadataOutputCallbackInfo { 61 const std::vector<sptr<MetadataObject>> info_; 62 const MetadataOutputCallback* listener_; MetadataOutputCallbackInfoMetadataOutputCallbackInfo63 MetadataOutputCallbackInfo(std::vector<sptr<MetadataObject>> metadataObjList, 64 const MetadataOutputCallback* listener) 65 : info_(metadataObjList), listener_(listener) {} 66 }; 67 68 class MetadataOutputNapi { 69 public: 70 static napi_value Init(napi_env env, napi_value exports); 71 static napi_value CreateMetadataOutput(napi_env env); 72 MetadataOutputNapi(); 73 ~MetadataOutputNapi(); 74 sptr<MetadataOutput> GetMetadataOutput(); 75 static bool IsMetadataOutput(napi_env env, napi_value obj); 76 77 private: 78 static void MetadataOutputNapiDestructor(napi_env env, void* nativeObject, void* finalize_hint); 79 static napi_value MetadataOutputNapiConstructor(napi_env env, napi_callback_info info); 80 81 static napi_value GetSupportedMetadataObjectTypes(napi_env env, napi_callback_info info); 82 static napi_value SetCapturingMetadataObjectTypes(napi_env env, napi_callback_info info); 83 static napi_value Start(napi_env env, napi_callback_info info); 84 static napi_value Stop(napi_env env, napi_callback_info info); 85 static napi_value On(napi_env env, napi_callback_info info); 86 87 static thread_local napi_ref sConstructor_; 88 static thread_local sptr<MetadataOutput> sMetadataOutput_; 89 90 napi_env env_; 91 napi_ref wrapper_; 92 sptr<MetadataOutput> metadataOutput_; 93 std::shared_ptr<MetadataOutputCallback> metadataCallback_ = nullptr; 94 }; 95 96 struct MetadataOutputAsyncContext : public AsyncContext { 97 MetadataOutputNapi* objectInfo; 98 bool bRetBool; 99 bool isSupported = false; 100 std::string errorMsg; 101 std::vector<MetadataObjectType> SupportedMetadataObjectTypes; 102 std::vector<MetadataObjectType> setSupportedMetadataObjectTypes; ~MetadataOutputAsyncContextMetadataOutputAsyncContext103 ~MetadataOutputAsyncContext() 104 { 105 objectInfo = nullptr; 106 } 107 }; 108 } // namespace CameraStandard 109 } // namespace OHOS 110 #endif /* METADATA_OUTPUT_NAPI_H_ */ 111