Bug#981757: gnome-core: ensure heic images are supported out of the box

[Norbert Lange]

Package: gnome-core
Severity: wishlist
X-Debbugs-Cc: nolange79 at gmail.com

Dear Maintainer,

Since 2019 some smartphone and camera vendors support HEIC
images, and already set this format as default.

In debian testing (/bullseye) support of that image-format is lacking.

-   EyeOfGnome needs heif-gdk-pixbuf to decode pictures
-   An extra  heif-thumbnailer is needed.
    
Some related discussion is in Bug#981538.

Those formats will only get more popular,
and finding the relation HEIC -> HEIF and the necessary
packages involved is not obvious.

For a good desktop experience, good out of the box support
would be welcome.

Kind regards,
Norbert

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-2-amd64 (SMP w/8 CPU threads)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-core depends on:
ii  adwaita-icon-theme            3.38.0-1
ii  at-spi2-core                  2.38.0-2
ii  baobab                        3.38.0-1
pn  caribou                       <none>
ii  chromium                      87.0.4280.88-0.4
ii  dconf-cli                     0.38.0-1
ii  dconf-gsettings-backend       0.38.0-1
ii  eog                           3.38.1-1
ii  evince                        3.38.0-3
ii  evolution-data-server         3.38.3-1
ii  fonts-cantarell               0.111-3
ii  gdm3                          3.38.2.1-1
ii  gedit                         3.38.1-1
ii  gkbd-capplet                  3.26.1-1
ii  glib-networking               2.66.0-2
ii  gnome-backgrounds             3.38.0-1
ii  gnome-bluetooth               3.34.3-2
ii  gnome-calculator              3.38.2-1
ii  gnome-characters              3.34.0-1
pn  gnome-contacts                <none>
ii  gnome-control-center          1:3.38.3-1
ii  gnome-disk-utility            3.38.1-1
ii  gnome-font-viewer             3.34.0-2+b1
ii  gnome-keyring                 3.36.0-1
ii  gnome-logs                    3.36.0-2
ii  gnome-menus                   3.36.0-1
ii  gnome-online-accounts         3.38.0-3
pn  gnome-online-miners           <none>
ii  gnome-session                 3.38.0-3
ii  gnome-settings-daemon         3.38.1-3
ii  gnome-shell                   3.38.3-1
ii  gnome-shell-extensions        3.38.2-1
pn  gnome-software                <none>
pn  gnome-sushi                   <none>
ii  gnome-system-monitor          3.38.0-1
ii  gnome-terminal                3.38.2-1
ii  gnome-themes-extra            3.28-1
pn  gnome-user-docs               <none>
ii  gnome-user-share              3.34.0-2
ii  gsettings-desktop-schemas     3.38.0-2
pn  gstreamer1.0-packagekit       <none>
ii  gstreamer1.0-plugins-base     1.18.3-dmo1
ii  gstreamer1.0-plugins-good     1.18.3-dmo1
ii  gstreamer1.0-pulseaudio       1.18.3-dmo1
ii  gvfs-backends                 1.46.2-1
pn  gvfs-fuse                     <none>
ii  libatk-adaptor                2.38.0-1
ii  libcanberra-pulse             0.30-7
ii  libglib2.0-bin                2.66.4-1
ii  libpam-gnome-keyring          3.36.0-1
ii  libproxy1-plugin-gsettings    0.4.17-1
ii  libproxy1-plugin-webkit       0.4.17-1
ii  librsvg2-common               2.50.3+dfsg-1
ii  nautilus                      3.38.2-1
ii  pulseaudio                    14.1-1
ii  pulseaudio-module-bluetooth   14.1-1
ii  sound-theme-freedesktop       0.8-2
ii  system-config-printer-common  1.5.14-1
ii  system-config-printer-udev    1.5.14-1
pn  totem                         <none>
ii  tracker                       2.3.6-2
ii  yelp                          3.38.2-1
ii  zenity                        3.32.0-6

Versions of packages gnome-core recommends:
ii  libproxy1-plugin-networkmanager  0.4.17-1
pn  network-manager-gnome            <none>

Versions of packages gnome-core suggests:
pn  gnome  <none>