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129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <exiv2/exiv2.hpp>
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#include <iostream>
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void write(const std::string& file, Exiv2::ExifData& ed);
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void print(const std::string& file);
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// *****************************************************************************
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// Main
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int main(int argc, char* const argv[])
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{
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try {
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Exiv2::XmpParser::initialize();
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::atexit(Exiv2::XmpParser::terminate);
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#ifdef EXV_ENABLE_BMFF
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Exiv2::enableBMFF();
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#endif
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if (argc != 2) {
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std::cout << "Usage: " << argv[0] << " file\n";
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return 1;
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}
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std::string file(argv[1]);
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Exiv2::Image::UniquePtr image = Exiv2::ImageFactory::open(file);
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assert (image.get() != 0);
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image->readMetadata();
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Exiv2::ExifData &ed = image->exifData();
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if (ed.empty()) {
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std::string error = file + ": No Exif data found in the file";
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throw Exiv2::Error(Exiv2::kerErrorMessage, error);
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}
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std::cout << "Copy construction, non-intrusive changes\n";
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Exiv2::ExifData ed1(ed);
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ed1["Exif.Image.DateTime"] = "Sunday, 11am";
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ed1["Exif.Image.Orientation"] = uint16_t(2);
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ed1["Exif.Photo.DateTimeOriginal"] = "Sunday, 11am";
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ed1["Exif.Photo.MeteringMode"] = uint16_t(1);
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ed1["Exif.Iop.InteroperabilityIndex"] = "123";
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// ed1["Exif.Thumbnail.Orientation"] = uint16_t(2);
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write(file, ed1);
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print(file);
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std::cout << "----------------------------------------------\n";
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std::cout << "Copy construction, intrusive changes\n";
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Exiv2::ExifData ed2(ed);
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ed2["Exif.Image.DateTime"] = "Sunday, 11am and ten minutes";
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ed2["Exif.Image.Orientation"] = "2 3 4 5";
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ed2["Exif.Photo.DateTimeOriginal"] = "Sunday, 11am and ten minutes";
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ed2["Exif.Photo.MeteringMode"] = "1 2 3 4 5 6";
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ed2["Exif.Iop.InteroperabilityIndex"] = "1234";
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ed2["Exif.Thumbnail.Orientation"] = "2 3 4 5 6";
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write(file, ed2);
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print(file);
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std::cout << "----------------------------------------------\n";
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std::cout << "Assignment, non-intrusive changes\n";
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Exiv2::ExifData ed3;
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ed3["Exif.Iop.InteroperabilityVersion"] = "Test 6 Iop tag";
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ed3["Exif.Thumbnail.Artist"] = "Test 6 Ifd1 tag";
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ed3 = ed;
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ed3["Exif.Image.DateTime"] = "Sunday, 11am";
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ed3["Exif.Image.Orientation"] = uint16_t(2);
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ed3["Exif.Photo.DateTimeOriginal"] = "Sunday, 11am";
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ed3["Exif.Photo.MeteringMode"] = uint16_t(1);
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ed3["Exif.Iop.InteroperabilityIndex"] = "123";
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ed3["Exif.Thumbnail.Orientation"] = uint16_t(2);
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write(file, ed3);
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print(file);
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std::cout << "----------------------------------------------\n";
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std::cout << "Assignment, intrusive changes\n";
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Exiv2::ExifData ed4;
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ed4["Exif.Iop.InteroperabilityVersion"] = "Test 6 Iop tag";
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ed4["Exif.Thumbnail.Artist"] = "Test 6 Ifd1 tag";
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ed4 = ed;
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ed4["Exif.Image.DateTime"] = "Sunday, 11am and ten minutes";
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ed4["Exif.Image.Orientation"] = "2 3 4 5";
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ed4["Exif.Photo.DateTimeOriginal"] = "Sunday, 11am and ten minutes";
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ed4["Exif.Photo.MeteringMode"] = uint16_t(1);
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ed4["Exif.Iop.InteroperabilityIndex"] = "123";
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ed4["Exif.Thumbnail.Orientation"] = uint16_t(2);
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write(file, ed4);
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print(file);
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return 0;
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}
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catch (Exiv2::AnyError& e) {
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std::cout << "Caught Exiv2 exception '" << e << "'\n";
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return -1;
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}
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}
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void write(const std::string& file, Exiv2::ExifData& ed)
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{
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Exiv2::Image::UniquePtr image = Exiv2::ImageFactory::open(file);
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assert (image.get() != 0);
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image->setExifData(ed);
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image->writeMetadata();
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}
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void print(const std::string& file)
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{
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Exiv2::Image::UniquePtr image = Exiv2::ImageFactory::open(file);
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assert (image.get() != 0);
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image->readMetadata();
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Exiv2::ExifData &ed = image->exifData();
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auto end = ed.end();
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for (auto i = ed.begin(); i != end; ++i) {
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std::cout << std::setw(45) << std::setfill(' ') << std::left
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<< i->key() << " "
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<< "0x" << std::setw(4) << std::setfill('0') << std::right
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<< std::hex << i->tag() << " "
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<< std::setw(12) << std::setfill(' ') << std::left
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<< i->ifdName() << " "
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<< std::setw(9) << std::setfill(' ') << std::left
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<< i->typeName() << " "
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<< std::dec << std::setw(3)
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<< std::setfill(' ') << std::right
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<< i->count() << " "
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<< std::dec << i->toString()
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<< "\n";
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}
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}
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