The gstreamer plugin can not be loaded successfully
Seems to be linker's problem. We have to add the dependency on libgstbase-1.0.so.0 somehow.
gst-inspect-1.0 gst/.libs/libgstnice.so
(gst-inspect-1.0:3199): GStreamer-WARNING **: Failed to load plugin 'gst/.libs/libgstnice.so': gst/.libs/libgstnice.so: undefined symbol: gst_base_src_set_format
Could not load plugin file: Opening module failed: gst/.libs/libgstnice.so: undefined symbol: gst_base_src_set_format