gst_base_transform_src_activate_pull 302 libs/gst/base/gstbasetransform.c static gboolean gst_base_transform_src_activate_pull (GstPad * pad, gst_base_transform_src_activate_pull 422 libs/gst/base/gstbasetransform.c GST_DEBUG_FUNCPTR (gst_base_transform_src_activate_pull));