Bug#1061225: gthumb ignores quicktime video orientation on playback

[E Harris <eharris@puremagic.com>]

Package: gthumb
Version: 3:3.12.2-3+b1
Severity: normal

gthumb appears to ignore quicktime video orientation on playback, causing
the playback to have the wrong orientation.

I have many videos that were recorded on an iphone in standard letterbox
format, but that play back upside-down when viewed with gthumb.

VLC and other players seem to play them back just fine.

ExifTool reports these tags for these videos:

"Composite:Rotation": 180
"QuickTime:MatrixStructure": "1 0 0 0 1 0 0 0 1"

-- System Information:
Debian Release: 12.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-14-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gthumb depends on:
ii  gsettings-desktop-schemas       43.0-1
ii  gthumb-data                     3:3.12.2-3
ii  libbrasero-media3-1             3.12.3-2
ii  libc6                           2.36-9+deb12u3
ii  libcairo2                       1.16.0-7
ii  libchamplain-0.12-0             0.12.20-1+b1
ii  libchamplain-gtk-0.12-0         0.12.20-1+b1
ii  libclutter-1.0-0                1.26.4+dfsg-4
ii  libclutter-gtk-1.0-0            1.8.4-4+b1
ii  libcolord2                      1.4.6-2.2
ii  libexiv2-27                     0.27.6-1
ii  libgcc-s1                       12.2.0-14
ii  libgdk-pixbuf-2.0-0             2.42.10+dfsg-1+b1
ii  libgl1-mesa-dri                 22.3.6-1+deb12u1
ii  libglib2.0-0                    2.74.6-2
ii  libgstreamer-plugins-base1.0-0  1.22.0-3+deb12u1
ii  libgstreamer1.0-0               1.22.0-2
ii  libgtk-3-0                      3.24.38-2~deb12u1
ii  libheif1                        1.15.1-1
ii  libjpeg62-turbo                 1:2.1.5-2
ii  liblcms2-2                      2.14-2
ii  libpango-1.0-0                  1.50.12+ds-1
ii  libpangocairo-1.0-0             1.50.12+ds-1
ii  libpng16-16                     1.6.39-2
ii  libraw20                        0.20.2-2.1
ii  librsvg2-2                      2.54.7+dfsg-1~deb12u1
ii  libsecret-1-0                   0.20.5-3
ii  libsoup2.4-1                    2.74.3-1
ii  libstdc++6                      12.2.0-14
ii  libtiff6                        4.5.0-6+deb12u1
ii  libwebkit2gtk-4.0-37            2.42.4-1~deb12u1
ii  libwebp7                        1.2.4-0.2+deb12u1
ii  libx11-6                        2:1.8.4-2+deb12u2
ii  zlib1g                          1:1.2.13.dfsg-1

Versions of packages gthumb recommends:
ii  libgphoto2-6       2.5.30-1
ii  libgphoto2-port12  2.5.30-1

gthumb suggests no packages.

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