Original commit message from CVS: * gst-libs/gst/rtp/gstbasertpdepayload.c: (gst_base_rtp_depayload_wait), (gst_base_rtp_depayload_change_state), (gst_base_rtp_depayload_set_property), (gst_base_rtp_depayload_get_property): Fix 99% cpu load by waiting for absolute times on the clock. Fixes #347300.