Remove deprecated QuickTime support
Luis Díaz Más
4 years ago
parent
8dcc07887a
commit
061ec1a75d
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// ***************************************************************** -*- C++ -*-
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/*
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* Copyright (C) 2004-2021 Exiv2 authors
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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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#ifndef QUICKTIMEVIDEO_HPP
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#define QUICKTIMEVIDEO_HPP
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// *****************************************************************************
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#include "exiv2lib_export.h"
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// included header files
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#include "exif.hpp"
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#include "image.hpp"
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// *****************************************************************************
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// namespace extensions
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namespace Exiv2 {
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// *****************************************************************************
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// class definitions
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// Add qtime to the supported image formats
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namespace ImageType {
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const int qtime = 22; //!< Treating qtime as an image type>
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}
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/*!
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@brief Class to access QuickTime video files.
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*/
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class EXIV2LIB_DEPRECATED_EXPORT QuickTimeVideo: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 for a QuickTime video. Since the constructor
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can not return a result, callers should check the good() method
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after object construction to determine success 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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QuickTimeVideo(BasicIo::UniquePtr io);
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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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//! @name Accessors
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//@{
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std::string mimeType() const;
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//@}
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protected:
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/*!
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@brief Check for a valid tag and decode the block at the current IO
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position. Calls tagDecoder() or skips to next tag, if required.
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*/
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void decodeBlock();
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/*!
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@brief Interpret tag information, and call the respective function
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to save it in the respective XMP container. Decodes a Tag
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Information and saves it in the respective XMP container, if
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the block size is small.
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@param buf Data buffer which cotains tag ID.
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@param size Size of the data block used to store Tag Information.
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*/
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void tagDecoder(Exiv2::DataBuf & buf, unsigned long size);
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private:
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/*!
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@brief Interpret file type of the video, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void fileTypeDecoder(unsigned long size);
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/*!
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@brief Interpret Media Header Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void mediaHeaderDecoder(unsigned long size);
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/*!
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@brief Interpret Video Header Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void videoHeaderDecoder(unsigned long size);
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/*!
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@brief Interpret Movie Header Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void movieHeaderDecoder(unsigned long size);
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/*!
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@brief Interpret Track Header Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void trackHeaderDecoder(unsigned long size);
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/*!
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@brief Interpret Handler Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void handlerDecoder(unsigned long size);
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/*!
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@brief Interpret Tag which contain other sub-tags,
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and save it in the respective XMP container.
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*/
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void multipleEntriesDecoder();
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/*!
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@brief Interpret Sample Description Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void sampleDesc(unsigned long size);
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/*!
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@brief Interpret Image Description Tag, and save it
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in the respective XMP container.
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*/
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void imageDescDecoder();
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/*!
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@brief Interpret User Data Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void userDataDecoder(unsigned long size);
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/*!
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@brief Interpret Preview Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void previewTagDecoder(unsigned long size);
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/*!
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@brief Interpret Meta Keys Tags, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void keysTagDecoder(unsigned long size);
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/*!
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@brief Interpret Track Aperture Tags, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void trackApertureTagDecoder(unsigned long size);
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/*!
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@brief Interpret Nikon Tag, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void NikonTagsDecoder(unsigned long size);
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/*!
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@brief Interpret Tags from Different Camera make, and save it
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in the respective XMP container.
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@param size Size of the data block used to store Tag Information.
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*/
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void CameraTagsDecoder(unsigned long size);
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/*!
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@brief Interpret Audio Description Tag, and save it
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in the respective XMP container.
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*/
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void audioDescDecoder();
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/*!
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@brief Helps to calculate Frame Rate from timeToSample chunk,
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and save it in the respective XMP container.
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*/
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void timeToSampleDecoder();
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/*!
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@brief Recognizes which stream is currently under processing,
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and save its information in currentStream_ .
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*/
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void setMediaStream();
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/*!
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@brief Used to discard a tag along with its data. The Tag will
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be skipped and not decoded.
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@param size Size of the data block that is to skipped.
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*/
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void discard(unsigned long size);
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/*!
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@brief Calculates Aspect Ratio of a video, and stores it in the
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respective XMP container.
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*/
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void aspectRatio();
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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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QuickTimeVideo(const QuickTimeVideo& rhs);
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//! Assignment operator
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QuickTimeVideo& operator=(const QuickTimeVideo& rhs);
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//@}
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private:
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//! Variable which stores Time Scale unit, used to calculate time.
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uint64_t timeScale_;
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//! Variable which stores current stream being processsed.
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int currentStream_;
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//! Variable to check the end of metadata traversing.
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bool continueTraversing_;
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//! Variable to store height and width of a video frame.
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uint64_t height_, width_;
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}; //QuickTimeVideo End
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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 QuicktimeVideo 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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EXIV2LIB_DEPRECATED_EXPORT Image::UniquePtr newQTimeInstance(BasicIo::UniquePtr io, bool create);
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//! Check if the file iIo is a Quick Time Video.
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EXIV2LIB_DEPRECATED_EXPORT bool isQTimeType(BasicIo& iIo, bool advance);
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} // namespace Exiv2
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#endif // QUICKTIMEVIDEO_HPP
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