[~]% dpkg -l | grep gstreamer                                      (quintasan@nightwalker:~)
ii  gstreamer0.10-alsa                   0.10.36-1                                GStreamer plugin for ALSA
ii  gstreamer0.10-ffmpeg                 0.10.13-1                                FFmpeg plugin for GStreamer
ii  gstreamer0.10-fluendo-mp3            0.10.15.debian-1ubuntu1                  Fluendo mp3 decoder GStreamer plugin
ii  gstreamer0.10-plugins-bad            0.10.22.3-2ubuntu2                       GStreamer plugins from the "bad" set
ii  gstreamer0.10-plugins-base           0.10.36-1                                GStreamer plugins from the "base" set
ii  gstreamer0.10-plugins-good           0.10.31-1ubuntu1                         GStreamer plugins from the "good" set
ii  gstreamer0.10-plugins-ugly           0.10.18.3-1ubuntu1                       GStreamer plugins from the "ugly" set
ii  gstreamer0.10-pulseaudio             0.10.31-1ubuntu1                         GStreamer plugin for PulseAudio
ii  gstreamer0.10-qapt                   1.3.1-0ubuntu2                           GStreamer plugin to install codecs using QApt
ii  gstreamer0.10-x                      0.10.36-1                                GStreamer plugins for X11 and Pango
ii  libgstreamer-plugins-bad0.10-0       0.10.22.3-2ubuntu2                       GStreamer development files for libraries from the "bad" set
ii  libgstreamer-plugins-base0.10-0      0.10.36-1                                GStreamer libraries from the "base" set
ii  libgstreamer0.10-0                   0.10.36-1ubuntu1                         Core GStreamer libraries and elements
ii  libqtgstreamer-0.10-0                0.10.1-2ubuntu4                          C++ bindings library for GStreamer with a Qt-style API
ii  phonon-backend-gstreamer             4:4.7.0really4.6.0-0ubuntu1              Phonon GStreamer 0.10.x backend