SUBSAMPLING
.dn_mode = SUBSAMPLING,
if ((dn_mode == SUBSAMPLING && orig_dn_mode == SCALING) ||
(dn_mode == SCALING && orig_dn_mode == SUBSAMPLING)) {
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,
.dn_mode = SUBSAMPLING,