phonon-backend-gstreamer-common 4:4.7.1+git20140403-0ubuntu1 (amd64 binary) in ubuntu trusty

 This package contains GStreamer 1.0.x backend for Phonon multimedia
 framework. It transparently adapts and reroutes all requests from Phonon
 applications to the GStreamer framework which in turn performs requested
 audio/video decoding/capture tasks.
 .
 You should install gstreamer1.0-plugins-good to get support for playing
 popular free multimedia formats and gstreamer1.0-plugins-ugly to get support
 for popular MPEG audio formats like MP3.
 .
 This package contains icons used by Phonon and Phonon4Qt5 backends.