[Digikam-users] Photographs with metadata...

[Thorsten Schnebeck]

Am Donnerstag 23 Februar 2006 13:57 schrieb Gilles Caulier:

> I think that it's not need to recreate a new project based on
> ExifTool. Contribute to Exiv2 is certainly the better choose...

Yes, I have pointed Phil to exiv2 as it has already the same 
reading logic and has the same object orientated structure like 
ExifTool. There are also some other very good C/C++ metatag 
decoder out there.
But generic writing support for so many image formats it that what 
makes ExifTool up to now unique - and it could be that exiv2 
needs a deeper restructuring when it wants to have 1st class 
writing support. When Phil starts implementing writing support 
with Version 5.00 this was nearly a rewrite of 4.xx and that old 
version had also very good decoding quality.
When implementing writing you have all the problems with different 
TAGs meaning the same thing and so on.
I think exiv2 will have excellent support of decoding metatags for 
all current raw formats in a shorter time. But I also think, that 
writing metatag will be limited by the possibilities of libjpeg, 
libpng, libtiff and copying  binary objects etc. But stuff like 
integrating IPTC into mrw - I think - this needs a longer time.

Bye

  Thorsten