gf_sg_set_proto_loader  654 include/gpac/scenegraph_vrml.h void gf_sg_set_proto_loader(GF_SceneGraph *scene, GF_SceneGraph *(*GetExternProtoLib)(void *SceneCallback, MFURL *lib_url));
gf_sg_set_proto_loader  103 src/terminal/scene.c 	gf_sg_set_proto_loader(tmp->graph, gf_inline_get_proto_lib);