Included filters

GstBinFilter — A customizable bin filter
GstAudioconverterFilter — An audio converter filter
GstVolumeFilter — An audio volume filter
GstLevelFilter — An audio level filter
GstVideoconverterFilter — A video converter filter
GstMaxFramerateFilter — A video framerate limiter filter
GstFramerateFilter — A video framerate filter
GstVideoSizeFilter — A filter to modify a video's resolution
GstGnomeEffectFilter — A Gnome Video Effect filter
GstPreviewFilter — A video preview filter