for (y=0; y<v->height_mb; y++)
for (s->mb_y=0; s->mb_y<s->mb_height; s->mb_y++)
static int advanced_decode_i_mbs(VC9Context *v){    int x, y, mqdiff, mquant, ac_pred, current_mb = 0, over_flags_mb = 0;    for (y=0; y<v->height_mb; y++)    {        for (x=0; x<v->width_mb; x++)        {            if (v->ac_pred_plane.data[current_mb])                ac_pred = get_bits(&v->gb, 1);            if (v->condover == 3 && v->over_flags_plane.is_raw)                over_flags_mb = get_bits(&v->gb, 1);            GET_MQUANT();            /* TODO: lots */        }        current_mb++;    }    return 0;}