Bug #674

ShutterSpeedValue should be a signed rational

Added by Olivier Tilloy about 9 years ago. Updated over 8 years ago.

Status:ClosedStart date:19 Jan 2010
Priority:NormalDue date:
Assignee:-% Done:


Target version:0.20


Revision 1960 added ShutterSpeedValue to the TIFF/EP tags, but its type was set to unsignedRational. I believe it should be a signed rational (see e.g. http://www.awaresystems.be/imaging/tiff/tifftags/privateifd/exif/shutterspeedvalue.html).

I am attaching a patch against svn trunk.

exiv2_ShutterSpeedValue_signedRational.patch Magnifier - patch (1.54 KB) Olivier Tilloy, 19 Jan 2010 11:44

Associated revisions

Revision 2012
Added by Andreas Huggel about 9 years ago

#674: Fixed default type for TIFF/EP ShutterSpeedValue (Olivier Tilloy).


#1 Updated by Andreas Huggel about 9 years ago

I used a draft version of the TIFF/EP standard where it is an unsigned rational.

But that seems to be an error as it is in APEX units and supposed to be the same information as Exif.Photo.ShutterSpeedValue.

#2 Updated by Andreas Huggel about 9 years ago

  • Category set to exif
  • Status changed from New to Resolved
  • Target version set to 0.20
  • % Done changed from 0 to 100

Thanks for the patch

#3 Updated by Andreas Huggel over 8 years ago

  • Status changed from Resolved to Closed

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