with system installed plugins. It's also a good idea to use GST_REGISTRY to
avoid clobbering your default GStreamer registry. For example you can
export these before launching the empathy processes as shown above:
- export GST_PLUGIN_LOADING_WHITELIST=gstreamer:gst-plugins-base:gst-plugins-good:libnice:valve:siren:autoconvert:rtpmux:dtmf:mimic:shm
+ export GST_PLUGIN_LOADING_WHITELIST=gstreamer:gst-plugins-base:gst-plugins-good:libnice:farstream:gst-plugins-bad:gst-plugins-ugly:gst-ffmpeg
export GST_PLUGIN_PATH=/path/to/your/custom/lib/gstreamer-0.10
export GST_REGISTRY=/tmp/gstreamer.registry