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 FRAMEWORKS_INNERKITSIMPL_ACCESSOR_INCLUDE_METADATA_ACCESSOR_H 17 #define FRAMEWORKS_INNERKITSIMPL_ACCESSOR_INCLUDE_METADATA_ACCESSOR_H 18 19 #include <memory> 20 21 #include "data_buf.h" 22 #include "exif_metadata.h" 23 #include "metadata_stream.h" 24 #include "ext_wstream.h" 25 26 namespace OHOS { 27 namespace Media { 28 static constexpr int E_NO_EXIF_TAG = 1; 29 30 class MetadataAccessor { 31 public: 32 virtual uint32_t Read() = 0; 33 virtual uint32_t Write() = 0; 34 virtual bool Create() = 0; 35 virtual uint32_t WriteBlob(DataBuf &blob) = 0; 36 virtual bool ReadBlob(DataBuf &blob) = 0; 37 virtual bool WriteToOutput(SkWStream &output) = 0; 38 virtual std::shared_ptr<MetadataStream> GetOutputStream() = 0; 39 virtual std::shared_ptr<ExifMetadata> Get() = 0; 40 virtual void Set(std::shared_ptr<ExifMetadata> &ptr) = 0; 41 virtual uint32_t GetFilterArea(const std::vector<std::string> &exifKeys, 42 std::vector<std::pair<uint32_t, uint32_t>> &ranges) = 0; 43 virtual bool IsFileChanged() = 0; 44 }; 45 } // namespace Media 46 } // namespace OHOS 47 48 #endif // FRAMEWORKS_INNERKITSIMPL_ACCESSOR_INCLUDE_METADATA_ACCESSOR_H 49