gst_base_src_default_negotiate  301 libs/gst/base/gstbasesrc.c static gboolean gst_base_src_default_negotiate (GstBaseSrc * basesrc);
gst_base_src_default_negotiate  372 libs/gst/base/gstbasesrc.c   klass->negotiate = GST_DEBUG_FUNCPTR (gst_base_src_default_negotiate);