Log Message:
Import gst-plugins1-ogg-1.0.3 as multimedia/gst-plugins1-ogg.

GStreamer is a library that allows the construction of graphs of
media-handling components, ranging from simple mp3 playback to complex
audio (mixing) and video (non-linear editing) processing.

Applications can take advantage of advances in codec and filter technology
transparently.  Developers can add new codecs and filters by writing a
simple plugin with a clean, generic interface.

This package provides the ogg plugin for GStreamer, which lets it handle
OGG media containers.  You'll probably want to install gst-plugins1-vorbis
and gst-plugins1-theora too, which provide its respective audio and video
codecs.