phonon4qt5-backend-gstreamer from KDE:Frameworks5 project
Selecione seu sistema operacional
Adicionar repositório e instalar manualmente
Para Backports SLE 12 SP1 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/KDE:Frameworks5/Backports_SLE_12_SP1/KDE:Frameworks5.repo zypper refresh zypper install phonon4qt5-backend-gstreamer