potok/TinyEXIF
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Add constructor that takes generic std::istream objects (#11)

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This commit is contained in:
Juha Reunanen
2021-04-02 20:31:04 +03:00
committed by GitHub
parent a41f1c89f7
commit d75f772ffa
4 changed files with 42 additions and 32 deletions
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11
README.md
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@@ -18,16 +18,11 @@ int main(int argc, const char** argv) {
return -1;
}
// read entire image file
std::ifstream file(argv[1], std::ifstream::in|std::ifstream::binary);
file.seekg(0,std::ios::end);
std::streampos length = file.tellg();
file.seekg(0,std::ios::beg);
std::vector<uint8_t> data(length);
file.read((char*)data.data(), length);
// open a stream to read just the necessary parts of the image file
std::ifstream istream(argv[1], std::ifstream::binary);
// parse image EXIF and XMP metadata
TinyEXIF::EXIFInfo imageEXIF(data.data(), length);
TinyEXIF::EXIFInfo imageEXIF(istream);
if (imageEXIF.Fields)
std::cout
<< "Image Description " << imageEXIF.ImageDescription << "\n"