Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke:mingw:win64:sdr/openSUSE_Tumbleweed/home:mnhauke:mingw:win64:sdr.repo
zypper refresh
zypper install mingw64-gstreamer
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke:mingw:win64:sdr/16.0/home:mnhauke:mingw:win64:sdr.repo
zypper refresh
zypper install mingw64-gstreamer
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:mnhauke:mingw:win64:sdr/15.6/home:mnhauke:mingw:win64:sdr.repo
zypper refresh
zypper install mingw64-gstreamer