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82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Sample program using high-level metadata access functions
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#include <exiv2/exiv2.hpp>
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#include <iomanip>
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#include <iostream>
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using EasyAccessFct = std::function<Exiv2::ExifData::const_iterator(const Exiv2::ExifData&)>;
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using EasyAccess = std::pair<const char*, EasyAccessFct>;
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static const EasyAccess easyAccess[] = {
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{"Orientation", Exiv2::orientation},
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{"ISO speed", Exiv2::isoSpeed},
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{"Date & time original", Exiv2::dateTimeOriginal},
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{"Flash bias", Exiv2::flashBias},
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{"Exposure mode", Exiv2::exposureMode},
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{"Scene mode", Exiv2::sceneMode},
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{"Macro mode", Exiv2::macroMode},
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{"Image quality", Exiv2::imageQuality},
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{"White balance", Exiv2::whiteBalance},
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{"Lens name", Exiv2::lensName},
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{"Saturation", Exiv2::saturation},
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{"Sharpness", Exiv2::sharpness},
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{"Contrast", Exiv2::contrast},
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{"Scene capture type", Exiv2::sceneCaptureType},
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{"Metering mode", Exiv2::meteringMode},
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{"Camera make", Exiv2::make},
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{"Camera model", Exiv2::model},
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{"Exposure time", Exiv2::exposureTime},
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{"FNumber", Exiv2::fNumber},
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{"Shutter speed value", Exiv2::shutterSpeedValue},
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{"Aperture value", Exiv2::apertureValue},
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{"Brightness value", Exiv2::brightnessValue},
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{"Exposure bias", Exiv2::exposureBiasValue},
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{"Max aperture value", Exiv2::maxApertureValue},
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{"Subject distance", Exiv2::subjectDistance},
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{"Light source", Exiv2::lightSource},
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{"Flash", Exiv2::flash},
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{"Camera serial number", Exiv2::serialNumber},
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{"Focal length", Exiv2::focalLength},
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{"Subject location/area", Exiv2::subjectArea},
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{"Flash energy", Exiv2::flashEnergy},
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{"Exposure index", Exiv2::exposureIndex},
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{"Sensing method", Exiv2::sensingMethod},
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{"AF point", Exiv2::afPoint},
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};
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int main(int argc, char** argv) {
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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 EXIT_FAILURE;
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}
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auto image = Exiv2::ImageFactory::open(argv[1]);
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image->readMetadata();
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Exiv2::ExifData& ed = image->exifData();
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for (auto&& [label, fct] : easyAccess) {
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auto pos = fct(ed);
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std::cout << std::setw(21) << std::left << label;
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if (pos != ed.end()) {
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std::cout << " (" << std::setw(35) << pos->key() << ") : " << pos->print(&ed) << "\n";
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} else {
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std::cout << " (" << std::setw(35) << " "
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<< ") : \n";
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}
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}
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return EXIT_SUCCESS;
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} catch (Exiv2::Error& e) {
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std::cout << "Caught Exiv2 exception '" << e << "'\n";
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return EXIT_FAILURE;
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}
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}
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