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openpreserve / jhove

File validation and characterisation.
http://jhove.openpreservation.org
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TIFF-HUL-2 ErrorMessage "Tag <n> out of sequence", in Well-Formed and valid JPEG #853

Open RvanVeenendaal opened 1 year ago

RvanVeenendaal commented 1 year ago

We've encountered a JHOVE TIFF-HUL-2 "ErrorMessage" reporting "Tag 34665 out of sequence" at offset 178 in the public file https://www.nationaalarchief.nl/onderzoeken/archief/2.10.02/invnr/3734/file/NL-HaNA_2.10.02_3734_0914 (download button on the left, download origineel bestand JPG).

We had two issues with this message: 1) Why is a TIFF-HUL message reported in a JPEG file? Our guess is that the TIFF-HUL is invoked to process certain metadata. But we'd like to know more about what is actually happening inside the HULs. 2) Why is the file considered Well-Formed and valid by JHOVE, when the TIFF-HUL reports an ErrorMessage? Is there a problem with passing errors from the TIFF-HUL back to the JPEG-HUL? Or if it is in fact a well-formed and valid file, why is the messsage labelled an ErrorMessage?

Thanks

carlwilson commented 1 year ago

Thanks for reporting this @RvanVeenendaal it's too late for the current release, but we will investigate and get back to you as part of the 1.30 release later this year.