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_ABSTRACT_EXIF_METADATA_ACCESSOR_H
17 #define FRAMEWORKS_INNERKITSIMPL_ACCESSOR_INCLUDE_ABSTRACT_EXIF_METADATA_ACCESSOR_H
18 
19 #include "image_log.h"
20 #include "exif_metadata.h"
21 #include "media_errors.h"
22 #include "metadata_accessor.h"
23 
24 namespace OHOS {
25 namespace Media {
26 class AbstractExifMetadataAccessor : public MetadataAccessor {
27 public:
28     AbstractExifMetadataAccessor(std::shared_ptr<MetadataStream> &stream);
29     virtual ~AbstractExifMetadataAccessor();
30 
31     virtual bool Create() override;
32     virtual std::shared_ptr<ExifMetadata> Get() override;
33     virtual void Set(std::shared_ptr<ExifMetadata> &ptr) override;
34     virtual bool WriteToOutput(SkWStream &output) override;
35     virtual std::shared_ptr<MetadataStream> GetOutputStream() override;
36     virtual uint32_t GetFilterArea(const std::vector<std::string> &exifKeys,
37                                    std::vector<std::pair<uint32_t, uint32_t>> &ranges) override;
GetTiffOffset()38     virtual long GetTiffOffset()
39     {
40         return tiffOffset_;
41     }
42 
IsFileChanged()43     virtual bool IsFileChanged() override
44     {
45         if (imageStream_ != nullptr) {
46             return imageStream_->IsFileChanged();
47         }
48         return false;
49     }
50 
51 protected:
52     std::shared_ptr<ExifMetadata> exifMetadata_ = nullptr;
53     std::shared_ptr<MetadataStream> imageStream_ = nullptr;
54     long tiffOffset_ = 0;
55 };
56 } // namespace Media
57 } // namespace OHOS
58 
59 #endif // FRAMEWORKS_INNERKITSIMPL_ACCESSOR_INCLUDE_ABSTRACT_EXIF_METADATA_ACCESSOR_H
60