GStreamer Core Library

Gst -
GstBin -
GstBuffer -
GstBus -
GstCaps -
GstChildProxy -
GstClock -
gstconfig -
GstElement -
GstElementFactory -
GstGError -
GstEvent -
GstFilter -
GstFormat -
GstGhostPad -
GstImplementsInterface -
GstIndex -
GstIndexFactory -
GstIterator -
GstMessage -
GstMiniObject -
GstObject -
GstPad -
GstPadTemplate -
GstParse -
GstPipeline -
GstPlugin -
GstPluginFeature -
GstQuery -
GstRegistry -
GstSegment -
GstStructure -
GstSystemClock -
GstTagList -
GstTagSetter -
GstTask -
GstTypeFind -
GstTypeFindFactory -
GstUriHandler -
GstUtils -
GStreamer GValue types -
GstVersion -
GstXML -

libgstreamer-0.10.so provides all the core GStreamer services, including initialization, plugin management and types, as well as the object hierarchy that defines elements and bins, along with some more specialized elements.