return rv;
}
+static void block_variance(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride,
+ int w, int h, unsigned int *sse, int *sum,
+ int block_size, unsigned int *sse8x8,
+ int *sum8x8, unsigned int *var8x8) {
+ int i, j, k = 0;
+
+ *sse = 0;
+ *sum = 0;
+
+ for (i = 0; i < h; i += block_size) {
+ for (j = 0; j < w; j += block_size) {
+ vp9_get8x8var(src + src_stride * i + j, src_stride,
+ ref + ref_stride * i + j, ref_stride,
+ &sse8x8[k], &sum8x8[k]);
+ *sse += sse8x8[k];
+ *sum += sum8x8[k];
+ var8x8[k] = sse8x8[k] - (((unsigned int)sum8x8[k] * sum8x8[k]) >> 6);
+ k++;
+ }
+ }
+}
+
+static void calculate_variance(int bw, int bh, TX_SIZE tx_size,
+ unsigned int *sse_i, int *sum_i,
+ unsigned int *var_o, unsigned int *sse_o,
+ int *sum_o) {
+ const BLOCK_SIZE unit_size = txsize_to_bsize[tx_size];
+ const int nw = 1 << (bw - b_width_log2_lookup[unit_size]);
+ const int nh = 1 << (bh - b_height_log2_lookup[unit_size]);
+ int i, j, k = 0;
+
+ for (i = 0; i < nh; i += 2) {
+ for (j = 0; j < nw; j += 2) {
+ sse_o[k] = sse_i[i * nw + j] + sse_i[i * nw + j + 1] +
+ sse_i[(i + 1) * nw + j] + sse_i[(i + 1) * nw + j + 1];
+ sum_o[k] = sum_i[i * nw + j] + sum_i[i * nw + j + 1] +
+ sum_i[(i + 1) * nw + j] + sum_i[(i + 1) * nw + j + 1];
+ var_o[k] = sse_o[k] - (((unsigned int)sum_o[k] * sum_o[k]) >>
+ (b_width_log2_lookup[unit_size] +
+ b_height_log2_lookup[unit_size] + 6));
+ k++;
+ }
+ }
+}
+
+static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize,
+ MACROBLOCK *x, MACROBLOCKD *xd,
+ int *out_rate_sum, int64_t *out_dist_sum,
+ unsigned int *var_y, unsigned int *sse_y,
+ int mi_row, int mi_col, int *early_term) {
+ // Note our transform coeffs are 8 times an orthogonal transform.
+ // Hence quantizer step is also 8 times. To get effective quantizer
+ // we need to divide by 8 before sending to modeling function.
+ unsigned int sse;
+ int rate;
+ int64_t dist;
+ struct macroblock_plane *const p = &x->plane[0];
+ struct macroblockd_plane *const pd = &xd->plane[0];
+ const uint32_t dc_quant = pd->dequant[0];
+ const uint32_t ac_quant = pd->dequant[1];
+ const int64_t dc_thr = dc_quant * dc_quant >> 6;
+ const int64_t ac_thr = ac_quant * ac_quant >> 6;
+ unsigned int var;
+ int sum;
+ int skip_dc = 0;
+
+ const int bw = b_width_log2_lookup[bsize];
+ const int bh = b_height_log2_lookup[bsize];
+ const int num8x8 = 1 << (bw + bh - 2);
+ unsigned int sse8x8[64] = {0};
+ int sum8x8[64] = {0};
+ unsigned int var8x8[64] = {0};
+ TX_SIZE tx_size;
+ int i, k;
+
+ // Calculate variance for whole partition, and also save 8x8 blocks' variance
+ // to be used in following transform skipping test.
+ block_variance(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride,
+ 4 << bw, 4 << bh, &sse, &sum, 8, sse8x8, sum8x8, var8x8);
+ var = sse - (((int64_t)sum * sum) >> (bw + bh + 4));
+
+ *var_y = var;
+ *sse_y = sse;
+
+ if (cpi->common.tx_mode == TX_MODE_SELECT) {
+ if (sse > (var << 2))
+ tx_size = MIN(max_txsize_lookup[bsize],
+ tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
+ else
+ tx_size = TX_8X8;
+
+ if (cpi->sf.partition_search_type == VAR_BASED_PARTITION) {
+ if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
+ cyclic_refresh_segment_id_boosted(xd->mi[0].src_mi->mbmi.segment_id))
+ tx_size = TX_8X8;
+ else if (tx_size > TX_16X16)
+ tx_size = TX_16X16;
+ }
+ } else {
+ tx_size = MIN(max_txsize_lookup[bsize],
+ tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
+ }
+
+ assert(tx_size >= TX_8X8);
+ xd->mi[0].src_mi->mbmi.tx_size = tx_size;
+
+ // Evaluate if the partition block is a skippable block in Y plane.
+ {
+ unsigned int sse16x16[16] = {0};
+ int sum16x16[16] = {0};
+ unsigned int var16x16[16] = {0};
+ const int num16x16 = num8x8 >> 2;
+
+ unsigned int sse32x32[4] = {0};
+ int sum32x32[4] = {0};
+ unsigned int var32x32[4] = {0};
+ const int num32x32 = num8x8 >> 4;
+
+ int ac_test = 1;
+ int dc_test = 1;
+ const int num = (tx_size == TX_8X8) ? num8x8 :
+ ((tx_size == TX_16X16) ? num16x16 : num32x32);
+ const unsigned int *sse_tx = (tx_size == TX_8X8) ? sse8x8 :
+ ((tx_size == TX_16X16) ? sse16x16 : sse32x32);
+ const unsigned int *var_tx = (tx_size == TX_8X8) ? var8x8 :
+ ((tx_size == TX_16X16) ? var16x16 : var32x32);
+
+ // Calculate variance if tx_size > TX_8X8
+ if (tx_size >= TX_16X16)
+ calculate_variance(bw, bh, TX_8X8, sse8x8, sum8x8, var16x16, sse16x16,
+ sum16x16);
+ if (tx_size == TX_32X32)
+ calculate_variance(bw, bh, TX_16X16, sse16x16, sum16x16, var32x32,
+ sse32x32, sum32x32);
+
+ // Skipping test
+ x->skip_txfm[0] = 0;
+ for (k = 0; k < num; k++)
+ // Check if all ac coefficients can be quantized to zero.
+ if (!(var_tx[k] < ac_thr || var == 0)) {
+ ac_test = 0;
+ break;
+ }
+
+ for (k = 0; k < num; k++)
+ // Check if dc coefficient can be quantized to zero.
+ if (!(sse_tx[k] - var_tx[k] < dc_thr || sse == var)) {
+ dc_test = 0;
+ break;
+ }
+
+ if (ac_test) {
+ x->skip_txfm[0] = 2;
+
+ if (dc_test)
+ x->skip_txfm[0] = 1;
+ } else if (dc_test) {
+ skip_dc = 1;
+ }
+ }
+
+ if (x->skip_txfm[0] == 1) {
+ int skip_uv[2] = {0};
+ unsigned int var_uv[2];
+ unsigned int sse_uv[2];
+
+ *out_rate_sum = 0;
+ *out_dist_sum = sse << 4;
+
+ // Transform skipping test in UV planes.
+ for (i = 1; i <= 2; i++) {
+ struct macroblock_plane *const p = &x->plane[i];
+ struct macroblockd_plane *const pd = &xd->plane[i];
+ const TX_SIZE uv_tx_size = get_uv_tx_size(&xd->mi[0].src_mi->mbmi, pd);
+ const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size];
+ const int sf = (bw - b_width_log2_lookup[unit_size]) +
+ (bh - b_height_log2_lookup[unit_size]);
+ const BLOCK_SIZE bs = get_plane_block_size(bsize, pd);
+ const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf);
+ const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf);
+ int j = i - 1;
+
+ vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i);
+ var_uv[j] = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
+ pd->dst.buf, pd->dst.stride, &sse_uv[j]);
+
+ if (var_uv[j] < uv_ac_thr || var_uv[j] == 0) {
+ if (sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j])
+ skip_uv[j] = 1;
+ }
+ }
+
+ // If the transform in YUV planes are skippable, the mode search checks
+ // fewer inter modes and doesn't check intra modes.
+ if (skip_uv[0] & skip_uv[1]) {
+ *early_term = 1;
+ }
+
+ return;
+ }
+
+ if (!skip_dc) {
+#if CONFIG_VP9_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
+ dc_quant >> (xd->bd - 5), &rate, &dist);
+ } else {
+ vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
+ dc_quant >> 3, &rate, &dist);
+ }
+#else
+ vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
+ dc_quant >> 3, &rate, &dist);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+ }
+
+ if (!skip_dc) {
+ *out_rate_sum = rate >> 1;
+ *out_dist_sum = dist << 3;
+ } else {
+ *out_rate_sum = 0;
+ *out_dist_sum = (sse - var) << 4;
+ }
+
+#if CONFIG_VP9_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
+ ac_quant >> (xd->bd - 5), &rate, &dist);
+ } else {
+ vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
+ ac_quant >> 3, &rate, &dist);
+ }
+#else
+ vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
+ ac_quant >> 3, &rate, &dist);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+ *out_rate_sum += rate;
+ *out_dist_sum += dist << 4;
+}
+
static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize,
MACROBLOCK *x, MACROBLOCKD *xd,
int *out_rate_sum, int64_t *out_dist_sum,
int ref_frame_skip_mask = 0;
int idx;
int best_pred_sad = INT_MAX;
+ int best_early_term = 0;
int ref_frame_cost[MAX_REF_FRAMES];
vp9_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
vp9_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
PREDICTION_MODE this_mode = ref_mode_set[idx].pred_mode;
int64_t this_sse;
int is_skippable;
+ int this_early_term = 0;
if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode)))
continue;
} else {
mbmi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP : filter_ref;
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
- model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
- &var_y, &sse_y);
+
+ // For large partition blocks, extra testing is done.
+ if (bsize > BLOCK_32X32 && xd->mi[0].src_mi->mbmi.segment_id != 1 &&
+ cm->base_qindex) {
+ model_rd_for_sb_y_large(cpi, bsize, x, xd, &this_rdc.rate,
+ &this_rdc.dist, &var_y, &sse_y, mi_row, mi_col,
+ &this_early_term);
+ } else {
+ model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
+ &var_y, &sse_y);
+ }
+
this_rdc.rate +=
cm->interp_filter == SWITCHABLE ?
vp9_get_switchable_rate(cpi, xd) : 0;
best_tx_size = mbmi->tx_size;
best_ref_frame = ref_frame;
best_mode_skip_txfm = x->skip_txfm[0];
+ best_early_term = this_early_term;
if (reuse_inter_pred) {
free_pred_buffer(best_pred);
if (x->skip)
break;
+
+ // If early termination flag is 1 and at least 2 modes are checked,
+ // the mode search is terminated.
+ if (best_early_term && idx > 0) {
+ x->skip = 1;
+ break;
+ }
}
mbmi->mode = best_mode;