For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:xine/openSUSE_Tumbleweed/multimedia:xine.repo
zypper refresh
zypper install xine-ui
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:xine/openSUSE_Factory_PowerPC/multimedia:xine.repo
zypper refresh
zypper install xine-ui
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:xine/openSUSE_Factory_ARM/multimedia:xine.repo
zypper refresh
zypper install xine-ui
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/multimedia:xine/15.4/multimedia:xine.repo
zypper refresh
zypper install xine-ui