This repository provides the packages for the latest GStreamer stable release, backported to Debian 10 (no new releases)/Debian 11

As of September 2023, bullseye (Debian 11) and bookworm (Debian 12) will be in different sub projects. Add the following

for bookworm:

$ echo "deb http://download.opensuse.org/repositories/home:/den_erpel:/bookworm-backports/Debian_12/ ./" \
sudo tee /etc/apt/sources.list.d/opensuse-den-erpel_bookworm.list
$ wget "https://build.opensuse.org/projects/home:den_erpel:bookworm-backports/signing_keys/download?kind=gpg" -qO - \
| gpg --dearmor \
| sudo tee /etc/apt/trusted.gpg.d/opensuse-den-erpel-archive-bookworm-keyring.gpg &> /dev/null

for bulllseye:

$ echo "deb http://download.opensuse.org/repositories/home:/den_erpel:/bullseye-backports/Debian_11/ ./" \
sudo tee /etc/apt/sources.list.d/opensuse-den-erpel_bullseye.list
$ wget "https://build.opensuse.org/projects/home:den_erpel:bullseye-backports/signing_keys/download?kind=gpg" -qO - \
| gpg --dearmor \
| sudo tee /etc/apt/trusted.gpg.d/opensuse-den-erpel-archive-bullseye-keyring.gpg &> /dev/null

Finally, you can increase the pinning value to prefer packages from this repository over the ones from the official GNU/Debian repositories.

$ cat /etc/apt/preferences.d/99buster-erpel
Package: *
Pin: origin download.opensuse.org
Pin-Priority: 800

The previous repository can still be used:
deb http://download.opensuse.org/repositories/home:/den_erpel/Debian_11/ ./

$ wget https://build.opensuse.org/projects/home:den_erpel/public_key -qO - \
| gpg --dearmor \
| sudo tee "/etc/apt/trusted.gpg.d/opensuse-den-erpel-archive-keyring.gpg" &> /dev/null