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feat(video) revive quicktime.{h,cpp} and adapt to codebase changes.

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This commit is contained in:
Christoph Hasse 2022-08-19 10:53:30 +02:00
parent 30dbd13982
commit 0a948c6a7d
6 changed files with 1903 additions and 2 deletions
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1
include/exiv2/image_types.hpp
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@ -34,6 +34,7 @@ enum class ImageType {
tiff,
webp,
xmp, ///< XMP sidecar files
qtime,
};
} // namespace Exiv2

240
include/exiv2/quicktimevideo.hpp Normal file
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@ -0,0 +1,240 @@
// ***************************************************************** -*- C++ -*-
/*
* Copyright (C) 2004-2021 Exiv2 authors
* This program is part of the Exiv2 distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
*/
#ifndef QUICKTIMEVIDEO_HPP
#define QUICKTIMEVIDEO_HPP
// *****************************************************************************
#include "exiv2lib_export.h"
// included header files
#include "exif.hpp"
#include "image.hpp"
// *****************************************************************************
// namespace extensions
namespace Exiv2 {
// *****************************************************************************
// class definitions
/*!
@brief Class to access QuickTime video files.
*/
class QuickTimeVideo:public Image
{
public:
//! @name Creators
//@{
/*!
@brief Constructor for a QuickTime video. Since the constructor
can not return a result, callers should check the good() method
after object construction to determine success or failure.
@param io An auto-pointer that owns a BasicIo instance used for
reading and writing image metadata. \b Important: The constructor
takes ownership of the passed in BasicIo instance through the
auto-pointer. Callers should not continue to use the BasicIo
instance after it is passed to this method. Use the Image::io()
method to get a temporary reference.
*/
QuickTimeVideo(BasicIo::UniquePtr io);
//@}
//! @name Manipulators
//@{
void readMetadata();
void writeMetadata();
//@}
//! @name Accessors
//@{
std::string mimeType() const;
//@}
protected:
/*!
@brief Check for a valid tag and decode the block at the current IO
position. Calls tagDecoder() or skips to next tag, if required.
*/
void decodeBlock();
/*!
@brief Interpret tag information, and call the respective function
to save it in the respective XMP container. Decodes a Tag
Information and saves it in the respective XMP container, if
the block size is small.
@param buf Data buffer which cotains tag ID.
@param size Size of the data block used to store Tag Information.
*/
void tagDecoder(Exiv2::DataBuf & buf, unsigned long size);
private:
/*!
@brief Interpret file type of the video, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void fileTypeDecoder(unsigned long size);
/*!
@brief Interpret Media Header Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void mediaHeaderDecoder(unsigned long size);
/*!
@brief Interpret Video Header Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void videoHeaderDecoder(unsigned long size);
/*!
@brief Interpret Movie Header Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void movieHeaderDecoder(unsigned long size);
/*!
@brief Interpret Track Header Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void trackHeaderDecoder(unsigned long size);
/*!
@brief Interpret Handler Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void handlerDecoder(unsigned long size);
/*!
@brief Interpret Tag which contain other sub-tags,
and save it in the respective XMP container.
*/
void multipleEntriesDecoder();
/*!
@brief Interpret Sample Description Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void sampleDesc(unsigned long size);
/*!
@brief Interpret Image Description Tag, and save it
in the respective XMP container.
*/
void imageDescDecoder();
/*!
@brief Interpret User Data Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void userDataDecoder(unsigned long size);
/*!
@brief Interpret Preview Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void previewTagDecoder(unsigned long size);
/*!
@brief Interpret Meta Keys Tags, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void keysTagDecoder(unsigned long size);
/*!
@brief Interpret Track Aperture Tags, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void trackApertureTagDecoder(unsigned long size);
/*!
@brief Interpret Nikon Tag, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void NikonTagsDecoder(unsigned long size);
/*!
@brief Interpret Tags from Different Camera make, and save it
in the respective XMP container.
@param size Size of the data block used to store Tag Information.
*/
void CameraTagsDecoder(unsigned long size);
/*!
@brief Interpret Audio Description Tag, and save it
in the respective XMP container.
*/
void audioDescDecoder();
/*!
@brief Helps to calculate Frame Rate from timeToSample chunk,
and save it in the respective XMP container.
*/
void timeToSampleDecoder();
/*!
@brief Recognizes which stream is currently under processing,
and save its information in currentStream_ .
*/
void setMediaStream();
/*!
@brief Used to discard a tag along with its data. The Tag will
be skipped and not decoded.
@param size Size of the data block that is to skipped.
*/
void discard(unsigned long size);
/*!
@brief Calculates Aspect Ratio of a video, and stores it in the
respective XMP container.
*/
void aspectRatio();
private:
//! @name NOT Implemented
//@{
//! Copy constructor
QuickTimeVideo(const QuickTimeVideo& rhs);
//! Assignment operator
QuickTimeVideo& operator=(const QuickTimeVideo& rhs);
//@}
private:
//! Variable which stores Time Scale unit, used to calculate time.
uint64_t timeScale_;
//! Variable which stores current stream being processsed.
int currentStream_;
//! Variable to check the end of metadata traversing.
bool continueTraversing_;
//! Variable to store height and width of a video frame.
uint64_t height_, width_;
}; //QuickTimeVideo End
// *****************************************************************************
// template, inline and free functions
// These could be static private functions on Image subclasses but then
// ImageFactory needs to be made a friend.
/*!
@brief Create a new QuicktimeVideo instance and return an auto-pointer to it.
Caller owns the returned object and the auto-pointer ensures that
it will be deleted.
*/
Image::UniquePtr newQTimeInstance(BasicIo::UniquePtr io, bool create);
//! Check if the file iIo is a Quick Time Video.
bool isQTimeType(BasicIo& iIo, bool advance);
} // namespace Exiv2
#endif // QUICKTIMEVIDEO_HPP

2
src/CMakeLists.txt
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@ -81,6 +81,7 @@ set(PUBLIC_HEADERS
../include/exiv2/webpimage.hpp
../include/exiv2/xmp_exiv2.hpp
../include/exiv2/xmpsidecar.hpp
../include/exiv2/quicktimevideo.hpp
)
add_library( exiv2lib
@ -123,6 +124,7 @@ add_library( exiv2lib
webpimage.cpp
xmp.cpp
xmpsidecar.cpp
quicktimevideo.cpp
${PUBLIC_HEADERS}
$<TARGET_OBJECTS:exiv2lib_int>
)

2
src/image.cpp
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@ -36,6 +36,7 @@
#include "tiffimage.hpp"
#include "webpimage.hpp"
#include "xmpsidecar.hpp"
#include "quicktimevideo.hpp"
// + standard includes
#include <array>
@ -99,6 +100,7 @@ constexpr auto registry = std::array{
#ifdef EXV_ENABLE_BMFF
Registry{ImageType::bmff, newBmffInstance, isBmffType, amRead, amRead, amRead, amNone},
#endif // EXV_ENABLE_BMFF
Registry{ ImageType::qtime,newQTimeInstance,isQTimeType,amRead,amNone, amRead, amNone},
};
std::string pathOfFileUrl(const std::string& url) {

3
src/properties.cpp
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@ -4902,8 +4902,7 @@ const XmpPrintInfo xmpPrintInfo[] = {
{"Xmp.plus.MinorModelAgeDisclosure", EXV_PRINT_VOCABULARY(plusMinorModelAgeDisclosure)},
{"Xmp.plus.ModelReleaseStatus", EXV_PRINT_VOCABULARY(plusModelReleaseStatus)},
{"Xmp.plus.PropertyReleaseStatus", EXV_PRINT_VOCABULARY(plusPropertyReleaseStatus)},
{"Xmp.plus.Reuse", EXV_PRINT_VOCABULARY(plusReuse)},
};
{"Xmp.plus.Reuse", EXV_PRINT_VOCABULARY(plusReuse)}};
XmpNsInfo::Ns::Ns(std::string ns) : ns_(std::move(ns)) {
}

1657
src/quicktimevideo.cpp Normal file
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