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Exiv2 corrupts Ricoh MakerNotes

Added by Anonymous Poster about 12 years ago

Hi,

Exiv2-0.18.1 seems to corrupt the Ricoh MakerNotes [1] and Ricoh Subdir Tags when writing GPS EXIF tags with GPSCorrelate to JPG files taken with a (quite old) "Ricoh Caplio RR30". At least ExifTool-7.82 complains like this:

Warning: [minor] Possibly incorrect maker notes offsets (fix by 268?)

Please see atached files for an example.

BTW: If I use GPSCorrelate to edit images taken with a "Canon EOS 500D" DSLR, it doesn't happen. So I guess something with the MakerNotes might be wrong.

Is this a bug in Exiv2 or even ExifTool and is there any solution to fix these images?
Thanks in advance!

Best regards,
Sebastian

[1] http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Ricoh.html

Ricoh10522_orig.JPG (669 KB) Ricoh10522_orig.JPG original image without modification
Ricoh10522_corrupted.JPG (669 KB) Ricoh10522_corrupted.JPG modified image with GPS Exif tags and corrupted MakerNotes

Replies (1)

RE: Exiv2 corrupts Ricoh MakerNotes - Added by Andreas Huggel about 12 years ago

This is a missing feature. Exiv2 doesn't support these Makernotes. Someone needs to sit down and code that support.
The known Makernotes are summarized here: http://www.exiv2.org/makernote.html

Andreas

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