5ff3b4603f
First try to write metadata in dedicated box (Exif, Iptc, and Xmp). It doesn't work yet properlly duing a wrong detection of eof. Still todo
135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2004-2008 Andreas Huggel <ahuggel@gmx.net>
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*
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* This program is part of the Exiv2 distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
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*/
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/*!
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@file jp2image.hpp
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@brief JPEG-2000 image, implemented using the following references:
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<a href="http://jpeg.org/public/fcd15444-6.pdf">ISO/IEC JTC 1/SC 29/WG1 N2401: JPEG 2000 Part 6 FCD 15444-6</a><br>
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@version $Rev$
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@author Gilles Caulier (cgilles)
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<a href="mailto:caulier dot gilles at gmail dot com">caulier dot gilles at gmail dot com</a>
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@author Marco Piovanelli, Ovolab (marco)
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<a href="mailto:marco.piovanelli@pobox.com">marco.piovanelli@pobox.com</a>
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@date 12-Mar-2007, marco: created
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*/
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#ifndef JP2IMAGE_HPP_
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#define JP2IMAGE_HPP_
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// *****************************************************************************
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// included header files
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#include "exif.hpp"
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#include "iptc.hpp"
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#include "image.hpp"
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// + standard includes
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#include <string>
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// *****************************************************************************
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// namespace extensions
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namespace Exiv2
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{
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// *****************************************************************************
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// class definitions
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// Add JPEG-2000 to the supported image formats
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namespace ImageType
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{
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const int jp2 = 15; //!< JPEG-2000 image type
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}
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/*!
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@brief Class to access JPEG-2000 images.
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*/
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class Jp2Image : public Image
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{
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public:
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//! @name Creators
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//@{
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/*!
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@brief Constructor to open a JPEG-2000 image. Since the
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constructor can not return a result, callers should check the
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good() method after object construction to determine success
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or failure.
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@param io An auto-pointer that owns a BasicIo instance used for
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reading and writing image metadata. \b Important: The constructor
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takes ownership of the passed in BasicIo instance through the
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auto-pointer. Callers should not continue to use the BasicIo
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instance after it is passed to this method. Use the Image::io()
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method to get a temporary reference.
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*/
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Jp2Image(BasicIo::AutoPtr io, bool create);
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//@}
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//! @name Manipulators
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//@{
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void readMetadata();
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void writeMetadata();
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/*!
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@brief Todo: Not supported yet(?). Calling this function will throw
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an instance of Error(32).
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*/
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void setComment(const std::string& comment);
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//@}
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//! @name Accessors
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//@{
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std::string mimeType() const { return "image/jp2"; }
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//@}
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private:
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//! @name NOT Implemented
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//@{
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//! Copy constructor
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Jp2Image(const Jp2Image& rhs);
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//! Assignment operator
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Jp2Image& operator=(const Jp2Image& rhs);
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/*!
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@brief Provides the main implementation of writeMetadata() by
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writing all buffered metadata to the provided BasicIo.
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@param oIo BasicIo instance to write to (a temporary location).
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@return 4 if opening or writing to the associated BasicIo fails
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*/
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void doWriteMetadata(BasicIo& oIo);
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//@}
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}; // class Jp2Image
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// *****************************************************************************
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// template, inline and free functions
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// These could be static private functions on Image subclasses but then
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// ImageFactory needs to be made a friend.
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/*!
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@brief Create a new Jp2Image instance and return an auto-pointer to it.
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Caller owns the returned object and the auto-pointer ensures that
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it will be deleted.
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*/
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Image::AutoPtr newJp2Instance(BasicIo::AutoPtr io, bool create);
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//! Check if the file iIo is a JPEG-2000 image.
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bool isJp2Type(BasicIo& iIo, bool advance);
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} // namespace Exiv2
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#endif // #ifndef JP2IMAGE_HPP_
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