Exiv2
cr2header_int.hpp
1// ***************************************************************** -*- C++ -*-
2/*
3 * Copyright (C) 2004-2021 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 */
27#ifndef CR2IMAGE_INT_HPP_
28#define CR2IMAGE_INT_HPP_
29
30// *****************************************************************************
31// included header files
32#include "tiffimage_int.hpp"
33
34// *****************************************************************************
35// namespace extensions
36namespace Exiv2 {
37 namespace Internal {
38
39// *****************************************************************************
40// class definitions
41
43 class Cr2Header : public TiffHeaderBase {
44 public:
46
47
48 explicit Cr2Header(ByteOrder byteOrder =littleEndian);
50 ~Cr2Header();
52
54
55 bool read(const byte* pData, uint32_t size);
57
59
60 DataBuf write() const;
61 bool isImageTag( uint16_t tag,
62 IfdId group,
63 const PrimaryGroups* pPrimaryGroups) const;
65
67 static uint32_t offset2addr() { return 12; }
68
69 private:
70 // DATA
71 uint32_t offset2_;
72 static const char* cr2sig_;
73 }; // class Cr2Header
74
75}} // namespace Internal, Exiv2
76
77#endif // #ifndef CR2IMAGE_INT_HPP_
Utility class containing a character array. All it does is to take care of memory allocation and dele...
Definition: types.hpp:193
Canon CR2 header structure.
Definition: cr2header_int.hpp:43
DataBuf write() const
Return the image header in binary format. The caller owns this data and DataBuf ensures that it will ...
Definition: cr2header_int.cpp:41
static uint32_t offset2addr()
Return the address of offset2 from the start of the header.
Definition: cr2header_int.hpp:67
~Cr2Header()
Destructor.
Definition: cr2header_int.cpp:14
bool isImageTag(uint16_t tag, IfdId group, const PrimaryGroups *pPrimaryGroups) const
Return true if the Exif tag from group is an image tag.
Definition: cr2header_int.cpp:65
bool read(const byte *pData, uint32_t size)
Read the image header from a data buffer. Return false if the data buffer does not contain an image h...
Definition: cr2header_int.cpp:18
Cr2Header(ByteOrder byteOrder=littleEndian)
Default constructor.
Definition: cr2header_int.cpp:8
Abstract base class defining the interface of an image header. Used internally by classes for TIFF-ba...
Definition: tiffimage_int.hpp:52
virtual uint16_t tag() const
Return the tag value (magic number) which identifies the buffer as TIFF data.
Definition: tiffimage_int.cpp:1981
virtual uint32_t size() const
Return the size (in bytes) of the image header.
Definition: tiffimage_int.cpp:1976
virtual ByteOrder byteOrder() const
Return the byte order (little or big endian).
Definition: tiffimage_int.cpp:1956
std::vector< IfdId > PrimaryGroups
Type for a list of primary image groups.
Definition: tifffwd_int.hpp:107
IfdId
Type to specify the IFD to which a metadata belongs.
Definition: tags_int.hpp:46
Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...
Definition: asfvideo.hpp:36
ByteOrder
Type to express the byte order (little or big endian)
Definition: types.hpp:102