QString DMetadata::getExifTagStringFromTagsList(const QStringList& tagsList) const
{
QString val;
foreach(const QString& tag, tagsList)
{
val = getExifTagString(tag.toLatin1().constData());
if (!val.isEmpty())
return val;
}
bool DMetadata::mSecTimeStamp(const char* const exifTagName, int& ms) const
{
bool ok = false;
QString val = getExifTagString(exifTagName);
if (!val.isEmpty())
{
int sub = val.toUInt(&ok);
if (ok)
{
int _ms = (int)(QString::fromLatin1("0.%1").arg(sub).toFloat(&ok) * 1000.0);
if (ok)
{
ms = _ms;
qCDebug(DIGIKAM_METAENGINE_LOG) << "msec timestamp: " << ms;
}
}
}
return ok;
}
KExiv2::ImageColorWorkSpace KExiv2::getImageColorWorkSpace() const
{
// Check Exif values.
long exifColorSpace = -1;
if (!getExifTagLong("Exif.Photo.ColorSpace", exifColorSpace))
{
#ifdef _XMP_SUPPORT_
QVariant var = getXmpTagVariant("Xmp.exif.ColorSpace");
if (!var.isNull())
exifColorSpace = var.toInt();
#endif // _XMP_SUPPORT_
}
if (exifColorSpace == 1)
{
return WORKSPACE_SRGB; // as specified by standard
}
else if (exifColorSpace == 2)
{
return WORKSPACE_ADOBERGB; // not in the standard!
}
else
{
if (exifColorSpace == 65535)
{
// A lot of cameras set the Exif.Iop.InteroperabilityIndex,
// as documented for ExifTool
QString interopIndex = getExifTagString("Exif.Iop.InteroperabilityIndex");
if (!interopIndex.isNull())
{
if (interopIndex == "R03")
return WORKSPACE_ADOBERGB;
else if (interopIndex == "R98")
return WORKSPACE_SRGB;
}
}
// Note: Text EXIF ColorSpace tag may just not be present (NEF files)
// Nikon camera set Exif.Photo.ColorSpace to uncalibrated or just skip this field,
// then add additional information into the makernotes.
// Exif.Nikon3.ColorSpace: 1 => sRGB, 2 => AdobeRGB
long nikonColorSpace;
if (getExifTagLong("Exif.Nikon3.ColorSpace", nikonColorSpace))
{
if (nikonColorSpace == 1)
return WORKSPACE_SRGB;
else if (nikonColorSpace == 2)
return WORKSPACE_ADOBERGB;
}
// Exif.Nikon3.ColorMode is set to "MODE2" for AdobeRGB, but there are sometimes two ColorMode fields
// in a NEF, with the first one "COLOR" and the second one "MODE2"; but in this case, ColorSpace (above) was set.
if (getExifTagString("Exif.Nikon3.ColorMode").contains("MODE2"))
return WORKSPACE_ADOBERGB;
//TODO: This makernote tag (0x00b4) must be added to libexiv2
/*
long canonColorSpace;
if (getExifTagLong("Exif.Canon.ColorSpace", canonColorSpace))
{
if (canonColorSpace == 1)
return WORKSPACE_SRGB;
else if (canonColorSpace == 2)
return WORKSPACE_ADOBERGB;
}
*/
// TODO : add more Makernote parsing here ...
if (exifColorSpace == 65535)
return WORKSPACE_UNCALIBRATED;
}
return WORKSPACE_UNSPECIFIED;
}