Here is a list of all modules:

gstreamermm Base Classes	Wrapped GStreamer base classes (plug-ins derrive from these)
gstreamermm Enums and Flags
gstreamermm Helper Classes	Classes used to represent GStreamer internal GValue types such as GST_TYPE_FRACTION, etc
gstreamermm Interfaces	Wrapped GStreamer interfaces and classes related to them
gstreamermm Plugins	Wrapped GStreamer plugins