gst_pad_set_activate_function  923 gst/gstpad.h   void			gst_pad_set_activate_function		(GstPad *pad, GstPadActivateFunction activate);
gst_pad_set_activate_function  645 libs/gst/base/gstbasesink.c   gst_pad_set_activate_function (basesink->sinkpad, gst_base_sink_pad_activate);
gst_pad_set_activate_function  257 plugins/elements/gsttypefindelement.c   gst_pad_set_activate_function (typefind->sink,