Package: libtiff5
Version: 4.0.3-12.3+deb8u3
Severity: normal
Dear Maintainer,
As of today, we are getting this warning:
Invalid tag "Predictor" (not supported by codec). (_TIFFVGetField)
* What led up to the situation?
The upgrade of libtiff5:amd from libtiff5:4.0.3-12.3+deb8u2 to
4.0.3-12.3+deb8u3 has caused a new warning to be emitted when creating TIFF
files.
We know it was this specific package because:
* our test server logs from yesterday do not include the warning
* a dist-upgrade this morning upgraded only one package: libtiff5
* our test server logs today now include the warning
* the test server is running the same jobs as yesterday
* we can reproduce the warning with test commands on other servers which
have been updated but not when using the same commands on servers which
are still running 4.0.3-12.3+deb8u2
The following two commands create a JPG file (a rectangle of solid color) and
then convert the JPG to a TIFF. The warning is produced by the second command:
$ gm convert -size 100x100 xc:#00aaaa rect.jpg
$ gm convert -colorspace RGB rect.jpg rect.tif
gm convert: rect.tif: Invalid tag "Predictor" (not supported by codec).
(_TIFFVGetField).
Both of these commands use the GraphicsMagick 'gm' command but that command is
using libtiff.
Regards
Grant McLean
-- System Information:
Debian Release: 8.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.utf8 (charmap=UTF-8) (ignored: LC_ALL
set to en_NZ.utf8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages libtiff5 depends on:
ii libc6 2.19-18+deb8u7
ii libjbig0 2.1-3.1
ii libjpeg62-turbo 1:1.3.1-12
ii liblzma5 5.1.1alpha+20120614-2+b3
ii multiarch-support 2.19-18+deb8u7
ii zlib1g 1:1.2.8.dfsg-2+b1
libtiff5 recommends no packages.
libtiff5 suggests no packages.
-- no debconf information
