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Maniphest T87042

TIFF thumbnailer fails with a few IPTC profiles
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Description

New problems detected with a few big TIFF (but not the biggest)

For example here:
https://commons.wikimedia.org/wiki/File:CH-NB_-_1802,_Zweite_Beschiessung_von_Z%C3%BCrich,_12._und_13._September_-_Collection_Gugelmann_-_GS-GUGE-KELLER-H-E-7.tif

But we have ~50 pictures of this category which are not thumbnailed at all:
https://commons.wikimedia.org/wiki/Category:CH-NB-Collection_Gugelmann

TheDJ posted the related log:
Error creating thumbnail: convert: /tmp/localcopy_7570ffa9a5d6-1.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/706.
convert: /tmp/localcopy_7570ffa9a5d6-1.tif: Bogus "StripByteCounts" field, ignoring and calculating from imagelength. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/706.
convert: /tmp/localcopy_7570ffa9a5d6-1.tif: Read error at scanline 2357; got 11676 bytes, expected 21900. `TIFFFillStrip' @ error/tiff.c/TIFFErrors/496.

Remark: this bug was firstly reported here: https://phabricator.wikimedia.org/T54045#959148

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StatusSubtypeAssignedTask
 OpenNoneT44725 Multimedia file format support (tracking)
 OpenNoneT64466 TIFF handling (tracking)
 InvalidNoneT87042 TIFF thumbnailer fails with a few IPTC profiles

Event Timeline

Kelson created this task.Jan 16 2015, 6:09 PM
Kelson raised the priority of this task from to High.
Kelson updated the task description. (Show Details)
Kelson added a project: MediaWiki-extensions-VipsScaler.
Kelson added a subscriber: Kelson.
Restricted Application added a project: Multimedia. · View Herald TranscriptJan 16 2015, 6:09 PM
Restricted Application added a subscriber: Aklapper. · View Herald Transcript
Kelson added a comment.Jan 16 2015, 6:46 PM

This seems to be a bug in the libTIFF. Here is the upstream ticket:
http://bugzilla.maptools.org/show_bug.cgi?id=2273

Aklapper added a project: Upstream.Jan 18 2015, 11:40 PM
TheDJ moved this task from Backlog to Reported Upstream on the Upstream board.Mar 9 2015, 3:01 PM
TheDJ mentioned this in T87318: TIFF images acquiring an extra page.Mar 9 2015, 3:29 PM
Lokal_Profil added a subscriber: Lokal_Profil.Mar 9 2015, 3:36 PM
Bawolff added a subscriber: Bawolff.Mar 9 2015, 10:23 PM
Kelson added a parent task: T64466: TIFF handling (tracking).Mar 10 2015, 9:22 AM
Kelson set Security to None.Mar 27 2015, 10:24 AM
Kelson added a subscriber: Swiss-National-Library.
Jdforrester-WMF moved this task from Untriaged to Backlog on the Multimedia board.Sep 4 2015, 6:45 PM
Restricted Application added a subscriber: Matanya. · View Herald TranscriptSep 4 2015, 6:45 PM
Jdforrester-WMF removed a project: Multimedia.Sep 21 2015, 4:01 PM
Bawolff added a comment.Oct 29 2015, 2:16 AM

The /tmp/localcopy_7570ffa9a5d6-1.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/706. is probably a red herring.

However

convert: /tmp/localcopy_7570ffa9a5d6-1.tif: Bogus "StripByteCounts" field, ignoring and calculating from imagelength. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/706.
convert: /tmp/localcopy_7570ffa9a5d6-1.tif: Read error at scanline 2357; got 11676 bytes, expected 21900. `TIFFFillStrip' @ error/tiff.c/TIFFErrors/496.

Sounds more serious. But that seems unrelated to the linked upstream bug.

Also, the files in question seem to render now. Can I close this bug as resolved (presumably somewhere along the line we upgraded the image scalars)?

Kelson added a comment.Oct 29 2015, 9:58 PM

@Bawolff
I don't think the problem is fixed.

If you look here for example (first version of the picture):
https://commons.wikimedia.org/wiki/File:CH-NB_-_1802,_Zweite_Beschiessung_von_Z%C3%BCrich,_12._und_13._September_-_Collection_Gugelmann_-_GS-GUGE-KELLER-H-E-7.tif

You see that the original image still misses a thumbnail! The gallery is OK because lower resolution versions of these problematic pictures were uploaded over the older/highest resolution ones.

Bawolff added a comment.Oct 29 2015, 9:58 PM

Oh, my bad. I didn't notice that they were uploaded over top of.

Bawolff added a comment.Oct 30 2015, 1:42 AM

Are we sure that these files are even valid. Are there programs that can read these files?

TheDJ closed this task as Invalid.May 2 2016, 2:21 PM
TheDJ added a subscriber: TheDJ.

My Mac's Preview.app and GraphicConverter don't decode those original tiff files either and tiffinfo borks on it locally as well. I'm calling that these originals were broken.

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