gst_base_transform_set_passthrough  704 libs/gst/base/gstbasetransform.c     gst_base_transform_set_passthrough (trans, trans->have_same_caps);
gst_base_transform_set_passthrough 2284 libs/gst/base/gstbasetransform.c       gst_base_transform_set_passthrough (trans, FALSE);
gst_base_transform_set_passthrough  253 libs/gst/base/gstbasetransform.h void		gst_base_transform_set_passthrough  (GstBaseTransform *trans,