gst_base_sink_get_render_delay 1351 libs/gst/base/gstbasesink.c       g_value_set_uint64 (value, gst_base_sink_get_render_delay (sink));
gst_base_sink_get_render_delay  231 libs/gst/base/gstbasesink.h GstClockTime    gst_base_sink_get_render_delay  (GstBaseSink *sink);