commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Gary Lucas (Updated) (JIRA)" <>
Subject [jira] [Updated] (SANSELAN-54) Tiff (exif) tags of type double written in wrong byte order
Date Tue, 04 Oct 2011 13:59:34 GMT


Gary Lucas updated SANSELAN-54:

    Attachment: Sanselan-54-ExifByteOrder.patch

The following patch fixes the problem for both double and float data types.  It is based on
the latest version of the file obtained through SVN.
> Tiff (exif) tags of type double written in wrong byte order
> -----------------------------------------------------------
>                 Key: SANSELAN-54
>                 URL:
>             Project: Commons Sanselan
>          Issue Type: Bug
>         Environment: Tested under Windows XP.  Potentally all platforms.
>            Reporter: Gary Lucas
>         Attachments: Sanselan-54-ExifByteOrder.patch
> Reviewing method convertDoubleToByteArray and convertDoubleArrayToByteArray
there are two blocks of code, one for BYTE_ORDER_MOTOROLA (big endian) and one for BYTE_ORDER_INTEL
(little endian).  These are backwards.  
> The convertByteArrayToDouble, on the other hand appears to be correct.  A reasonable
test procedure would be to see if these two sets of methods are mutually consistent.
> The same problem appears to be the case for the "Float" variants, but not the Integer

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:!default.jspa
For more information on JIRA, see:


View raw message