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 INTERFACES_INNERKITS_INCLUDE_EXIF_METADATA_H
17 #define INTERFACES_INNERKITS_INCLUDE_EXIF_METADATA_H
18 
19 #include <libexif/exif-entry.h>
20 #include <libexif/exif-tag.h>
21 #include <libexif/huawei/exif-mnote-data-huawei.h>
22 
23 #include "image_type.h"
24 #include "metadata.h"
25 #include "parcel.h"
26 
27 namespace OHOS {
28 namespace Media {
29 class ExifMetadata : public ImageMetadata {
30 public:
31     ExifMetadata();
32     ExifMetadata(ExifData *exifData);
33     virtual ~ExifMetadata();
34     virtual int GetValue(const std::string &key, std::string &value) const override;
35     virtual bool SetValue(const std::string &key, const std::string &value) override;
36     virtual bool RemoveEntry(const std::string &key) override;
37     virtual const ImageMetadata::PropertyMapPtr GetAllProperties() override;
38     virtual std::shared_ptr<ImageMetadata> CloneMetadata() override;
39     ExifData* GetExifData();
40     bool CreateExifdata();
41     NATIVEEXPORT std::shared_ptr<ExifMetadata> Clone();
42     bool Marshalling(Parcel &parcel) const override;
43     static ExifMetadata *Unmarshalling(Parcel &parcel);
44     static ExifMetadata *Unmarshalling(Parcel &parcel, PICTURE_ERR &error);
45     void GetFilterArea(const std::vector<std::string> &exifKeys, std::vector<std::pair<uint32_t, uint32_t>> &ranges);
GetType()46     MetadataType GetType() const override
47     {
48         return MetadataType::EXIF;
49     }
50 
51 private:
52     ExifEntry* CreateEntry(const std::string &key, const ExifTag &tag, const size_t len);
53     MnoteHuaweiEntry* CreateHwEntry(const std::string &key);
54     ExifEntry* GetEntry(const std::string &key, const size_t len);
55     ExifEntry* GetEntry(const std::string &key) const;
56     ExifMnoteData* GetHwMnoteData(bool &isNewMaker);
57     int HandleMakerNote(std::string &value) const;
58     int HandleHwMnote(const std::string &key, std::string &value) const;
59     void ReallocEntry(ExifEntry *ptrEntry, const size_t len);
60     bool SetShort(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
61     bool SetSShort(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
62     bool SetLong(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
63     bool SetSLong(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
64     bool SetRational(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
65     bool SetSRational(ExifEntry *ptrEntry, const ExifByteOrder &o, const std::string &value);
66     bool SetByte(ExifEntry *ptrEntry, const std::string &value);
67     bool SetMem(ExifEntry *ptrEntry, const std::string &value, const size_t len);
68     bool SetHwMoteValue(const std::string &key, const std::string &value);
69     bool RemoveHwEntry(const std::string &key);
70     bool SetCommonValue(const std::string &key, const std::string &value);
71     bool IsSpecialHwKey(const std::string &key) const;
72     void FindRanges(const ExifTag &tag, std::vector<std::pair<uint32_t, uint32_t>> &ranges);
73     ExifData *exifData_;
74 };
75 } // namespace Media
76 } // namespace OHOS
77 
78 #endif // INTERFACES_INNERKITS_INCLUDE_EXIF_METADATA_H
79