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// ***************************************************************** -*- C++ -*-
// tiff-test.cpp, $Rev: 1703 $
// First and very simple TIFF write test.
#include <exiv2/tiffimage.hpp>
#include <exiv2/exif.hpp>
#include <exiv2/error.hpp>
#include <string>
#include <iostream>
#include <iomanip>
#include <cassert>
using namespace Exiv2;
void print(const ExifData& exifData);
void mini1(const char* path);
void mini9(const char* path);
int main(int argc, char* const argv[])
try {
if (argc != 2) {
std::cout << "Usage: " << argv[0] << " file\n";
return 1;
}
const char* path = argv[1];
mini1(path);
mini9(path);
return 0;
}
catch (const AnyError& e) {
std::cout << e << "\n";
}
void mini1(const char* path)
{
ExifData exifData;
Blob blob;
WriteMethod wm;
// Write nothing to a new structure, without a previous binary image
wm = ExifParser::encode(blob, 0, 0, bigEndian, exifData);
assert(wm == wmIntrusive);
assert(blob.size() == 0);
std::cout << "Test 1: Writing empty Exif data without original binary data: ok.\n";
// Write nothing, this time with a previous binary image
DataBuf buf = readFile(path);
wm = ExifParser::encode(blob, buf.pData_, buf.size_, bigEndian, exifData);
assert(wm == wmIntrusive);
assert(blob.size() == 0);
std::cout << "Test 2: Writing empty Exif data with original binary data: ok.\n";
// Write something to a new structure, without a previous binary image
exifData["Exif.Photo.DateTimeOriginal"] = "Yesterday at noon";
wm = ExifParser::encode(blob, 0, 0, bigEndian, exifData);
assert(wm == wmIntrusive);
std::cout << "Test 3: Wrote non-empty Exif data without original binary data:\n";
exifData.clear();
ByteOrder bo = ExifParser::decode(exifData, &blob[0], blob.size());
assert(bo == bigEndian);
print(exifData);
}
void mini9(const char* path)
{
TiffImage tiffImage(BasicIo::AutoPtr(new FileIo(path)), false);
tiffImage.readMetadata();
std::cout << "MIME type: " << tiffImage.mimeType() << "\n";
std::cout << "Image size: " << tiffImage.pixelWidth() << " x " << tiffImage.pixelHeight() << "\n";
ExifData& exifData = tiffImage.exifData();
std::cout << "Before\n";
print(exifData);
std::cout << "======\n";
exifData["Exif.Photo.DateTimeOriginal"] = "Yesterday at noon";
std::cout << "After\n";
print(exifData);
tiffImage.writeMetadata();
}
void print(const ExifData& exifData)
{
if (exifData.empty()) {
std::string error("No Exif data found in the file");
throw Exiv2::Error(1, error);
}
Exiv2::ExifData::const_iterator end = exifData.end();
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}
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