虚包：phonon4qt5-backend
This is a virtual package. See the Debian policy for a definition of virtual packages.
负责填实 phonon4qt5-backend 的软件包
- phonon4qt5-backend-gstreamer
- Phonon Qt5 GStreamer 1.0 backend
- phonon4qt5-backend-null
- multimedia framework from KDE using Qt 5 - null back-end (no real back-end)
- phonon4qt5-backend-vlc
- Phonon4Qt5 VLC backend