DBLSCAN
prop_dictionary_set_bool(cfg, "dblscan", !!(flags & DBLSCAN));
{ 6, 720, 480, DBLSCAN | INTERLACE },
{ 7, 720, 480, DBLSCAN | INTERLACE },
{ 8, 720, 240, DBLSCAN },
{ 9, 720, 240, DBLSCAN },