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https://issues.apache.org/jira/browse/IMAGING-179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Legner updated IMAGING-179:
---------------------------------
Attachment: 123.jpg
> Adding a directory causes "APP1 Segment is too long"
> ----------------------------------------------------
>
> Key: IMAGING-179
> URL: https://issues.apache.org/jira/browse/IMAGING-179
> Project: Commons Imaging
> Issue Type: Bug
> Components: Format: JPEG
> Reporter: Simon Legner
> Attachments: 123.jpg
>
>
> SVN revision: 1696444
> The following snippet causes {{ExifRewriter$ExifOverflowException: APP1
> Segment is too long: 65548}}
> {code:java}
> final File in = new File("123.jpg");
> final TiffImageMetadata exif = ((JpegImageMetadata)
> Imaging.getMetadata(in)).getExif();
> final TiffOutputSet outputSet = exif.getOutputSet();
> outputSet.getOrCreateGPSDirectory().add(GpsTagConstants.GPS_TAG_GPS_IMG_DIRECTION,
> RationalNumber.valueOf(123));
> new ExifRewriter().updateExifMetadataLossless(in, new
> ByteArrayOutputStream(), outputSet);
> {code}
> When inspecting the EXIF data using {{jhead -exifmap 123.jpg}}, the header
> reveals unfilled space between 47198 and 65526. Nevertheless, this space is
> not used, but instead the GPS directory is being appended starting at offset
> 65526.
> {code}
> Map: 00008-00182: Directory
> Map: 00184-00202: Data for tag 010f
> Map: 00204-00214: Data for tag 0110
> Map: 00216-00224: Data for tag 011a
> Map: 00224-00232: Data for tag 011b
> Map: 00232-00242: Data for tag 0131
> Map: 00244-00264: Data for tag 0132
> Map: 00264-00280: Data for tag 013e
> Map: 00280-00328: Data for tag 013f
> Map: 00328-00352: Data for tag 0211
> Map: 00352-00850: Directory
> Map: 00852-00860: Data for tag 829a
> Map: 00860-00868: Data for tag 829d
> Map: 00868-00888: Data for tag 9003
> Map: 00888-00908: Data for tag 9004
> Map: 00908-00916: Data for tag 9102
> Map: 00916-00924: Data for tag 9204
> Map: 00924-00932: Data for tag 9205
> Map: 00932-00940: Data for tag 920a
> Map: 01008-35518: Data for tag 927c
> Map: 00940-00984: Data for tag 9286
> Map: 35518-35548: Directory
> Map: 00984-00992: Data for tag a302
> Map: 00992-01000: Data for tag a404
> Map: 01000-01008: Data for tag a500
> Map: 35568-35658: Directory
> Map: 35660-35668: Data for tag 011a
> Map: 35668-35676: Data for tag 011b
> Map: 35676-47197: Thumbnail
> Map: 65526- End of exif
> {code}
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