void gf_sm_dumper_set_extra_graph(GF_SceneDumper *sdump, GF_SceneGraph *extra)
{
	sdump->sg = extra;
}
void gf_sm_dumper_set_extra_graph(GF_SceneDumper *sdump, GF_SceneGraph *extra)
{
	sdump->sg = extra;
}