Description of problem:
Both /usr/lib64/gstreamer-0.10/libgstsiren.so (-farsight) and /usr/lib64/gstreamer-0.10/libgstrtp.so (-good) appear to contain the GstRTPSirenPay class, which is causing me problems when trying to run gst-inspect or gst-launch. 

Version-Release number of selected component (if applicable):
gstreamer-plugins-farsight-0.12.10-2.fc11.x86_64
gstreamer-plugins-good-0.10.15-1.fc11.x86_64

Steps to Reproduce:
1. Have both gstreamer-plugins-farsight gstreamer-plugins-good installed
2. run "gst-inspect" from a terminal, or otherwise cause GStreamer to regenerate it's plugin registry
  
Actual results:
$ gst-launch

(gst-launch-0.10:15111): GLib-GObject-WARNING **: cannot register existing type `GstRTPSirenPay'

(gst-launch-0.10:15111): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

(gst-launch-0.10:15111): GStreamer-CRITICAL **: gst_element_register: assertion `g_type_is_a (type, GST_TYPE_ELEMENT)' failed

ERROR: Caught a segmentation fault while loading plugin file:
/usr/lib64/gstreamer-0.10/libgstaudiofx.so

Please either:
- remove it and restart.
- run with --gst-disable-segtrap and debug.

Expected results:
A list of installed GStreamer elements


Additional info:
The classes were moved from -farsight to -good in 0.12.11 farsight release and the 0.10.15 good release (Changelog from good is below). To stop the conflict, -farsight would probably need to upgraded to 0.12.11

2009-02-10 17:20:57 +0000  Olivier Crete <olivier.crete.uk>
	* gst/rtp/Makefile.am:
	* gst/rtp/gstrtp.c:
	* gst/rtp/gstrtpsirendepay.c:
	* gst/rtp/gstrtpsirendepay.h:
	* gst/rtp/gstrtpsirenpay.c:
	* gst/rtp/gstrtpsirenpay.h:
	  Move siren rtp pay/depay from gst-plugins-farsight