rkisp1_rsz_calc_ratio
ratio = rkisp1_rsz_calc_ratio(sink_y->width, src_y->width);
ratio = rkisp1_rsz_calc_ratio(sink_c->width, src_c->width);
ratio = rkisp1_rsz_calc_ratio(sink_y->height, src_y->height);
ratio = rkisp1_rsz_calc_ratio(sink_c->height, src_c->height);