1 /* 2 * Copyright (C) 2023 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 #ifndef OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 16 #define OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 17 18 #include <unordered_map> 19 20 #include "nlohmann/json.hpp" 21 #include "userfile_manager_types.h" 22 23 namespace OHOS { 24 namespace Media { 25 #define EXPORT __attribute__ ((visibility ("default"))) 26 class MimeTypeUtils { 27 public: 28 EXPORT MimeTypeUtils(const MimeTypeUtils&) = delete; 29 EXPORT MimeTypeUtils(MimeTypeUtils&&) = delete; 30 EXPORT MimeTypeUtils& operator=(const MimeTypeUtils&) = delete; 31 EXPORT MimeTypeUtils& operator=(MimeTypeUtils&&) = delete; 32 EXPORT static bool IsMimeTypeMapEmpty(); 33 EXPORT static int32_t InitMimeTypeMap(); 34 EXPORT static std::string GetMimeTypeFromContent(const std::string &filePath); 35 EXPORT static std::string GetMimeTypeFromExtension(const std::string &extension); 36 EXPORT static std::string GetMimeTypeFromExtension(const std::string &extension, 37 const std::unordered_map<std::string, std::vector<std::string>> &mimeTypeMap); 38 EXPORT static MediaType GetMediaTypeFromMimeType(const std::string &mimeType); 39 40 private: 41 static void CreateMapFromJson(); 42 static int32_t GetVideoMimetype(const std::string &filePath, std::string &mimeType); 43 static int32_t GetImageMimetype(const std::string &filePath, std::string &mimeType); 44 45 static std::unordered_map<std::string, std::vector<std::string>> mediaJsonMap_; 46 }; 47 } 48 } 49 #endif //OHOS_MEDIALIBRARY_MIMETYPE_UTILS_H 50