Exiv2
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bmffimage.hpp
1// ***************************************************************** -*- C++ -*-
2/*
3 * Copyright (C) 2021 Exiv2 authors
4 * This program is part of the Exiv2 distribution.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
19 */
20
21#pragma once
22
23// *****************************************************************************
24#include "exiv2lib_export.h"
25
26// included header files
27#include "image.hpp"
28#include "iostream"
29
30// *****************************************************************************
31// namespace extensions
32namespace Exiv2
33{
34 EXIV2API bool enableBMFF(bool enable = true);
35}
36
37#ifdef EXV_ENABLE_BMFF
38namespace Exiv2
39{
40 struct Iloc
41 {
42 Iloc(uint32_t ID = 0, uint32_t start = 0, uint32_t length = 0) : ID_(ID), start_(start), length_(length){};
43 virtual ~Iloc(){};
44
45 uint32_t ID_;
46 uint32_t start_;
47 uint32_t length_;
48
49 std::string toString() const;
50 }; // class Iloc
51
52 // *****************************************************************************
53 // class definitions
54
55 // Add Base Media File Format to the supported image formats
56 namespace ImageType
57 {
58 const int bmff = 19;
59 }
60
64 class EXIV2API BmffImage : public Image
65 {
66 public:
68
69
83 BmffImage(BasicIo::AutoPtr io, bool create);
85
87
94 void parseTiff(uint32_t root_tag, uint64_t length);
95 void parseTiff(uint32_t root_tag, uint64_t length,uint64_t start);
97
99
105 void parseXmp(uint64_t length,uint64_t start);
107
109
121 void parseCr3Preview(DataBuf &data,
122 std::ostream &out,
123 bool bTrace,
124 uint8_t version,
125 uint32_t width_offset,
126 uint32_t height_offset,
127 uint32_t size_offset,
128 uint32_t relative_position);
130
132
133 void readMetadata() /* override */;
134 void writeMetadata() /* override */;
135 void setComment(const std::string& comment) /* override */;
136 void printStructure(std::ostream& out, Exiv2::PrintStructureOption option,int depth);
138
140
141 std::string mimeType() const /* override */;
142 int pixelWidth() const;
143 int pixelHeight() const;
145
146 Exiv2::ByteOrder endian_ ;
147
148 private:
149 void openOrThrow();
158 long boxHandler(std::ostream& out, Exiv2::PrintStructureOption option,
159 const long pbox_end, int depth);
160 std::string indent(int i)
161 {
162 return std::string(2*i,' ');
163 }
164
165 uint32_t fileType_;
166 std::set<uint64_t> visits_;
167 uint64_t visits_max_;
168 uint16_t unknownID_; // 0xffff
169 uint16_t exifID_;
170 uint16_t xmpID_;
171 std::map<uint32_t, Iloc> ilocs_;
172 bool bReadMetadata_;
174
178 std::string toAscii(long n);
179 std::string boxName(uint32_t box);
180 bool superBox(uint32_t box);
181 bool fullBox(uint32_t box);
182 std::string uuidName(Exiv2::DataBuf& uuid);
183
184 }; // class BmffImage
185
186 // *****************************************************************************
187 // template, inline and free functions
188
189 // These could be static private functions on Image subclasses but then
190 // ImageFactory needs to be made a friend.
196 EXIV2API Image::AutoPtr newBmffInstance(BasicIo::AutoPtr io, bool create);
197
199 EXIV2API bool isBmffType(BasicIo& iIo, bool advance);
200} // namespace Exiv2
201#endif // EXV_ENABLE_BMFF
std::auto_ptr< BasicIo > AutoPtr
BasicIo auto_ptr type.
Definition: basicio.hpp:58
Utility class containing a character array. All it does is to take care of memory allocation and dele...
Definition: types.hpp:193
std::auto_ptr< Image > AutoPtr
Image auto_ptr type.
Definition: image.hpp:81
Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...
Definition: asfvideo.hpp:36
PrintStructureOption
Options for printStructure.
Definition: image.hpp:64
std::string toString(const T &arg)
Utility function to convert the argument of any type to a string.
Definition: types.hpp:510