void XmpSidecar::readMetadata()
{
#ifdef DEBUG
std::cerr << "Reading XMP file " << io_->path() << "\n";
#endif
if (io_->open() != 0) {
throw Error(9, io_->path(), strError());
}
IoCloser closer(*io_);
// Ensure that this is the correct image type
if (!isXmpType(*io_, false)) {
if (io_->error() || io_->eof()) throw Error(14);
throw Error(3, "XMP");
}
// Read the XMP packet from the IO stream
std::string xmpPacket;
const long len = 64 * 1024;
byte buf[len];
long l;
while ((l = io_->read(buf, len)) > 0) {
xmpPacket.append(reinterpret_cast<char*>(buf), l);
}
if (io_->error()) throw Error(14);
clearMetadata();
xmpPacket_ = xmpPacket;
if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_)) {
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Failed to decode XMP metadata.\n";
#endif
}
copyXmpToIptc(xmpData_, iptcData_);
copyXmpToExif(xmpData_, exifData_);
} // XmpSidecar::readMetadata
void XmpSidecar::readMetadata()
{
#ifdef DEBUG
std::cerr << "Reading XMP file " << io_->path() << "\n";
#endif
if (io_->open() != 0) {
throw Error(9, io_->path(), strError());
}
IoCloser closer(*io_);
// Ensure that this is the correct image type
if (!isXmpType(*io_, false)) {
if (io_->error() || io_->eof()) throw Error(14);
throw Error(3, "XMP");
}
// Read the XMP packet from the IO stream
std::string xmpPacket;
const long len = 64 * 1024;
byte buf[len];
long l;
while ((l = io_->read(buf, len)) > 0) {
xmpPacket.append(reinterpret_cast<char*>(buf), l);
}
if (io_->error()) throw Error(14);
clearMetadata();
xmpPacket_ = xmpPacket;
if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_)) {
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Failed to decode XMP metadata.\n";
#endif
}
// #1112 - store dates to deal with loss of TZ information during conversions
for (Exiv2::XmpData::const_iterator it = xmpData_.begin(); it != xmpData_.end(); ++it) {
std::string key(it->key());
if ( key.find("Date") != std::string::npos ) {
std::string value(it->value().toString());
dates_[key] = value;
}
}
copyXmpToIptc(xmpData_, iptcData_);
copyXmpToExif(xmpData_, exifData_);
} // XmpSidecar::readMetadata