libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_rd.c

Index: source/libvpx/vp9/encoder/vp9_rd.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_rd.c	(revision 0)
+++ source/libvpx/vp9/encoder/vp9_rd.c	(revision 0)
@@ -0,0 +1,580 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+
+#include "./vp9_rtcd.h"
+
+#include "vpx_mem/vpx_mem.h"
+
+#include "vp9/common/vp9_common.h"
+#include "vp9/common/vp9_entropy.h"
+#include "vp9/common/vp9_entropymode.h"
+#include "vp9/common/vp9_mvref_common.h"
+#include "vp9/common/vp9_pred_common.h"
+#include "vp9/common/vp9_quant_common.h"
+#include "vp9/common/vp9_reconinter.h"
+#include "vp9/common/vp9_reconintra.h"
+#include "vp9/common/vp9_seg_common.h"
+#include "vp9/common/vp9_systemdependent.h"
+
+#include "vp9/encoder/vp9_cost.h"
+#include "vp9/encoder/vp9_encodemb.h"
+#include "vp9/encoder/vp9_encodemv.h"
+#include "vp9/encoder/vp9_encoder.h"
+#include "vp9/encoder/vp9_mcomp.h"
+#include "vp9/encoder/vp9_quantize.h"
+#include "vp9/encoder/vp9_ratectrl.h"
+#include "vp9/encoder/vp9_rd.h"
+#include "vp9/encoder/vp9_tokenize.h"
+#include "vp9/encoder/vp9_variance.h"
+
+#define RD_THRESH_POW      1.25
+#define RD_MULT_EPB_RATIO  64
+
+// Factor to weigh the rate for switchable interp filters.
+#define SWITCHABLE_INTERP_RATE_FACTOR 1
+
+// The baseline rd thresholds for breaking out of the rd loop for
+// certain modes are assumed to be based on 8x8 blocks.
+// This table is used to correct for block size.
+// The factors here are << 2 (2 = x0.5, 32 = x8 etc).
+static const uint8_t rd_thresh_block_size_factor[BLOCK_SIZES] = {
+  2, 3, 3, 4, 6, 6, 8, 12, 12, 16, 24, 24, 32
+};
+
+static void fill_mode_costs(VP9_COMP *cpi) {
+  const FRAME_CONTEXT *const fc = &cpi->common.fc;
+  int i, j;
+
+  for (i = 0; i < INTRA_MODES; ++i)
+    for (j = 0; j < INTRA_MODES; ++j)
+      vp9_cost_tokens(cpi->y_mode_costs[i][j], vp9_kf_y_mode_prob[i][j],
+                      vp9_intra_mode_tree);
+
+  vp9_cost_tokens(cpi->mbmode_cost, fc->y_mode_prob[1], vp9_intra_mode_tree);
+  vp9_cost_tokens(cpi->intra_uv_mode_cost[KEY_FRAME],
+                  vp9_kf_uv_mode_prob[TM_PRED], vp9_intra_mode_tree);
+  vp9_cost_tokens(cpi->intra_uv_mode_cost[INTER_FRAME],
+                  fc->uv_mode_prob[TM_PRED], vp9_intra_mode_tree);
+
+  for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
+    vp9_cost_tokens(cpi->switchable_interp_costs[i],
+                    fc->switchable_interp_prob[i], vp9_switchable_interp_tree);
+}
+
+static void fill_token_costs(vp9_coeff_cost *c,
+                             vp9_coeff_probs_model (*p)[PLANE_TYPES]) {
+  int i, j, k, l;
+  TX_SIZE t;
+  for (t = TX_4X4; t <= TX_32X32; ++t)
+    for (i = 0; i < PLANE_TYPES; ++i)
+      for (j = 0; j < REF_TYPES; ++j)
+        for (k = 0; k < COEF_BANDS; ++k)
+          for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l) {
+            vp9_prob probs[ENTROPY_NODES];
+            vp9_model_to_full_probs(p[t][i][j][k][l], probs);
+            vp9_cost_tokens((int *)c[t][i][j][k][0][l], probs,
+                            vp9_coef_tree);
+            vp9_cost_tokens_skip((int *)c[t][i][j][k][1][l], probs,
+                                 vp9_coef_tree);
+            assert(c[t][i][j][k][0][l][EOB_TOKEN] ==
+                   c[t][i][j][k][1][l][EOB_TOKEN]);
+          }
+}
+
+static const uint8_t rd_iifactor[32] = {
+  4, 4, 3, 2, 1, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+// Values are now correlated to quantizer.
+static int sad_per_bit16lut[QINDEX_RANGE];
+static int sad_per_bit4lut[QINDEX_RANGE];
+
+void vp9_init_me_luts() {
+  int i;
+
+  // Initialize the sad lut tables using a formulaic calculation for now.
+  // This is to make it easier to resolve the impact of experimental changes
+  // to the quantizer tables.
+  for (i = 0; i < QINDEX_RANGE; ++i) {
+    const double q = vp9_convert_qindex_to_q(i);
+    sad_per_bit16lut[i] = (int)(0.0418 * q + 2.4107);
+    sad_per_bit4lut[i] = (int)(0.063 * q + 2.742);
+  }
+}
+
+int vp9_compute_rd_mult(const VP9_COMP *cpi, int qindex) {
+  const int q = vp9_dc_quant(qindex, 0);
+  // TODO(debargha): Adjust the function below.
+  int rdmult = 88 * q * q / 25;
+  if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME)) {
+    if (cpi->twopass.next_iiratio > 31)
+      rdmult += (rdmult * rd_iifactor[31]) >> 4;
+    else
+      rdmult += (rdmult * rd_iifactor[cpi->twopass.next_iiratio]) >> 4;
+  }
+  return rdmult;
+}
+
+static int compute_rd_thresh_factor(int qindex) {
+  // TODO(debargha): Adjust the function below.
+  const int q = (int)(pow(vp9_dc_quant(qindex, 0) / 4.0, RD_THRESH_POW) * 5.12);
+  return MAX(q, 8);
+}
+
+void vp9_initialize_me_consts(VP9_COMP *cpi, int qindex) {
+  cpi->mb.sadperbit16 = sad_per_bit16lut[qindex];
+  cpi->mb.sadperbit4 = sad_per_bit4lut[qindex];
+}
+
+static void set_block_thresholds(const VP9_COMMON *cm, RD_OPT *rd) {
+  int i, bsize, segment_id;
+
+  for (segment_id = 0; segment_id < MAX_SEGMENTS; ++segment_id) {
+    const int qindex =
+        clamp(vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex) +
+                  cm->y_dc_delta_q,
+              0, MAXQ);
+    const int q = compute_rd_thresh_factor(qindex);
+
+    for (bsize = 0; bsize < BLOCK_SIZES; ++bsize) {
+      // Threshold here seems unnecessarily harsh but fine given actual
+      // range of values used for cpi->sf.thresh_mult[].
+      const int t = q * rd_thresh_block_size_factor[bsize];
+      const int thresh_max = INT_MAX / t;
+
+      if (bsize >= BLOCK_8X8) {
+        for (i = 0; i < MAX_MODES; ++i)
+          rd->threshes[segment_id][bsize][i] =
+              rd->thresh_mult[i] < thresh_max
+                  ? rd->thresh_mult[i] * t / 4
+                  : INT_MAX;
+      } else {
+        for (i = 0; i < MAX_REFS; ++i)
+          rd->threshes[segment_id][bsize][i] =
+              rd->thresh_mult_sub8x8[i] < thresh_max
+                  ? rd->thresh_mult_sub8x8[i] * t / 4
+                  : INT_MAX;
+      }
+    }
+  }
+}
+
+void vp9_initialize_rd_consts(VP9_COMP *cpi) {
+  VP9_COMMON *const cm = &cpi->common;
+  MACROBLOCK *const x = &cpi->mb;
+  RD_OPT *const rd = &cpi->rd;
+  int i;
+
+  vp9_clear_system_state();
+
+  rd->RDDIV = RDDIV_BITS;  // In bits (to multiply D by 128).
+  rd->RDMULT = vp9_compute_rd_mult(cpi, cm->base_qindex + cm->y_dc_delta_q);
+
+  x->errorperbit = rd->RDMULT / RD_MULT_EPB_RATIO;
+  x->errorperbit += (x->errorperbit == 0);
+
+  x->select_tx_size = (cpi->sf.tx_size_search_method == USE_LARGESTALL &&
+                       cm->frame_type != KEY_FRAME) ? 0 : 1;
+
+  set_block_thresholds(cm, rd);
+
+  if (!cpi->sf.use_nonrd_pick_mode || cm->frame_type == KEY_FRAME) {
+    fill_token_costs(x->token_costs, cm->fc.coef_probs);
+
+    for (i = 0; i < PARTITION_CONTEXTS; ++i)
+      vp9_cost_tokens(cpi->partition_cost[i], get_partition_probs(cm, i),
+                      vp9_partition_tree);
+  }
+
+  if (!cpi->sf.use_nonrd_pick_mode || (cm->current_video_frame & 0x07) == 1 ||
+      cm->frame_type == KEY_FRAME) {
+    fill_mode_costs(cpi);
+
+    if (!frame_is_intra_only(cm)) {
+      vp9_build_nmv_cost_table(x->nmvjointcost,
+                               cm->allow_high_precision_mv ? x->nmvcost_hp
+                                                           : x->nmvcost,
+                               &cm->fc.nmvc, cm->allow_high_precision_mv);
+
+      for (i = 0; i < INTER_MODE_CONTEXTS; ++i)
+        vp9_cost_tokens((int *)cpi->inter_mode_cost[i],
+                        cm->fc.inter_mode_probs[i], vp9_inter_mode_tree);
+    }
+  }
+}
+
+static const int MAX_XSQ_Q10 = 245727;
+
+static void model_rd_norm(int xsq_q10, int *r_q10, int *d_q10) {
+  // NOTE: The tables below must be of the same size.
+
+  // The functions described below are sampled at the four most significant
+  // bits of x^2 + 8 / 256.
+
+  // Normalized rate:
+  // This table models the rate for a Laplacian source with given variance
+  // when quantized with a uniform quantizer with given stepsize. The
+  // closed form expression is:
+  // Rn(x) = H(sqrt(r)) + sqrt(r)*[1 + H(r)/(1 - r)],
+  // where r = exp(-sqrt(2) * x) and x = qpstep / sqrt(variance),
+  // and H(x) is the binary entropy function.
+  static const int rate_tab_q10[] = {
+    65536,  6086,  5574,  5275,  5063,  4899,  4764,  4651,
+     4553,  4389,  4255,  4142,  4044,  3958,  3881,  3811,
+     3748,  3635,  3538,  3453,  3376,  3307,  3244,  3186,
+     3133,  3037,  2952,  2877,  2809,  2747,  2690,  2638,
+     2589,  2501,  2423,  2353,  2290,  2232,  2179,  2130,
+     2084,  2001,  1928,  1862,  1802,  1748,  1698,  1651,
+     1608,  1530,  1460,  1398,  1342,  1290,  1243,  1199,
+     1159,  1086,  1021,   963,   911,   864,   821,   781,
+      745,   680,   623,   574,   530,   490,   455,   424,
+      395,   345,   304,   269,   239,   213,   190,   171,
+      154,   126,   104,    87,    73,    61,    52,    44,
+       38,    28,    21,    16,    12,    10,     8,     6,
+        5,     3,     2,     1,     1,     1,     0,     0,
+  };
+  // Normalized distortion:
+  // This table models the normalized distortion for a Laplacian source
+  // with given variance when quantized with a uniform quantizer
+  // with given stepsize. The closed form expression is:
+  // Dn(x) = 1 - 1/sqrt(2) * x / sinh(x/sqrt(2))
+  // where x = qpstep / sqrt(variance).
+  // Note the actual distortion is Dn * variance.
+  static const int dist_tab_q10[] = {
+       0,     0,     1,     1,     1,     2,     2,     2,
+       3,     3,     4,     5,     5,     6,     7,     7,
+       8,     9,    11,    12,    13,    15,    16,    17,
+      18,    21,    24,    26,    29,    31,    34,    36,
+      39,    44,    49,    54,    59,    64,    69,    73,
+      78,    88,    97,   106,   115,   124,   133,   142,
+     151,   167,   184,   200,   215,   231,   245,   260,
+     274,   301,   327,   351,   375,   397,   418,   439,
+     458,   495,   528,   559,   587,   613,   637,   659,
+     680,   717,   749,   777,   801,   823,   842,   859,
+     874,   899,   919,   936,   949,   960,   969,   977,
+     983,   994,  1001,  1006,  1010,  1013,  1015,  1017,
+    1018,  1020,  1022,  1022,  1023,  1023,  1023,  1024,
+  };
+  static const int xsq_iq_q10[] = {
+         0,      4,      8,     12,     16,     20,     24,     28,
+        32,     40,     48,     56,     64,     72,     80,     88,
+        96,    112,    128,    144,    160,    176,    192,    208,
+       224,    256,    288,    320,    352,    384,    416,    448,
+       480,    544,    608,    672,    736,    800,    864,    928,
+       992,   1120,   1248,   1376,   1504,   1632,   1760,   1888,
+      2016,   2272,   2528,   2784,   3040,   3296,   3552,   3808,
+      4064,   4576,   5088,   5600,   6112,   6624,   7136,   7648,
+      8160,   9184,  10208,  11232,  12256,  13280,  14304,  15328,
+     16352,  18400,  20448,  22496,  24544,  26592,  28640,  30688,
+     32736,  36832,  40928,  45024,  49120,  53216,  57312,  61408,
+     65504,  73696,  81888,  90080,  98272, 106464, 114656, 122848,
+    131040, 147424, 163808, 180192, 196576, 212960, 229344, 245728,
+  };
+  const int tmp = (xsq_q10 >> 2) + 8;
+  const int k = get_msb(tmp) - 3;
+  const int xq = (k << 3) + ((tmp >> k) & 0x7);
+  const int one_q10 = 1 << 10;
+  const int a_q10 = ((xsq_q10 - xsq_iq_q10[xq]) << 10) >> (2 + k);
+  const int b_q10 = one_q10 - a_q10;
+  *r_q10 = (rate_tab_q10[xq] * b_q10 + rate_tab_q10[xq + 1] * a_q10) >> 10;
+  *d_q10 = (dist_tab_q10[xq] * b_q10 + dist_tab_q10[xq + 1] * a_q10) >> 10;
+}
+
+void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n,
+                                  unsigned int qstep, int *rate,
+                                  int64_t *dist) {
+  // This function models the rate and distortion for a Laplacian
+  // source with given variance when quantized with a uniform quantizer
+  // with given stepsize. The closed form expressions are in:
+  // Hang and Chen, "Source Model for transform video coder and its
+  // application - Part I: Fundamental Theory", IEEE Trans. Circ.
+  // Sys. for Video Tech., April 1997.
+  if (var == 0) {
+    *rate = 0;
+    *dist = 0;
+  } else {
+    int d_q10, r_q10;
+    const uint64_t xsq_q10_64 =
+        ((((uint64_t)qstep * qstep * n) << 10) + (var >> 1)) / var;
+    const int xsq_q10 = xsq_q10_64 > MAX_XSQ_Q10 ?
+                        MAX_XSQ_Q10 : (int)xsq_q10_64;
+    model_rd_norm(xsq_q10, &r_q10, &d_q10);
+    *rate = (n * r_q10 + 2) >> 2;
+    *dist = (var * (int64_t)d_q10 + 512) >> 10;
+  }
+}
+
+void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size,
+                              const struct macroblockd_plane *pd,
+                              ENTROPY_CONTEXT t_above[16],
+                              ENTROPY_CONTEXT t_left[16]) {
+  const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+  const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
+  const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
+  const ENTROPY_CONTEXT *const above = pd->above_context;
+  const ENTROPY_CONTEXT *const left = pd->left_context;
+
+  int i;
+  switch (tx_size) {
+    case TX_4X4:
+      vpx_memcpy(t_above, above, sizeof(ENTROPY_CONTEXT) * num_4x4_w);
+      vpx_memcpy(t_left, left, sizeof(ENTROPY_CONTEXT) * num_4x4_h);
+      break;
+    case TX_8X8:
+      for (i = 0; i < num_4x4_w; i += 2)
+        t_above[i] = !!*(const uint16_t *)&above[i];
+      for (i = 0; i < num_4x4_h; i += 2)
+        t_left[i] = !!*(const uint16_t *)&left[i];
+      break;
+    case TX_16X16:
+      for (i = 0; i < num_4x4_w; i += 4)
+        t_above[i] = !!*(const uint32_t *)&above[i];
+      for (i = 0; i < num_4x4_h; i += 4)
+        t_left[i] = !!*(const uint32_t *)&left[i];
+      break;
+    case TX_32X32:
+      for (i = 0; i < num_4x4_w; i += 8)
+        t_above[i] = !!*(const uint64_t *)&above[i];
+      for (i = 0; i < num_4x4_h; i += 8)
+        t_left[i] = !!*(const uint64_t *)&left[i];
+      break;
+    default:
+      assert(0 && "Invalid transform size.");
+  }
+}
+
+void vp9_mv_pred(VP9_COMP *cpi, MACROBLOCK *x,
+                 uint8_t *ref_y_buffer, int ref_y_stride,
+                 int ref_frame, BLOCK_SIZE block_size) {
+  MACROBLOCKD *xd = &x->e_mbd;
+  MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+  int_mv this_mv;
+  int i;
+  int zero_seen = 0;
+  int best_index = 0;
+  int best_sad = INT_MAX;
+  int this_sad = INT_MAX;
+  int max_mv = 0;
+
+  uint8_t *src_y_ptr = x->plane[0].src.buf;
+  uint8_t *ref_y_ptr;
+  int row_offset, col_offset;
+  int num_mv_refs = MAX_MV_REF_CANDIDATES +
+                    (cpi->sf.adaptive_motion_search &&
+                     cpi->common.show_frame &&
+                     block_size < cpi->sf.max_partition_size);
+
+  MV pred_mv[3];
+  pred_mv[0] = mbmi->ref_mvs[ref_frame][0].as_mv;
+  pred_mv[1] = mbmi->ref_mvs[ref_frame][1].as_mv;
+  pred_mv[2] = x->pred_mv[ref_frame];
+
+  // Get the sad for each candidate reference mv.
+  for (i = 0; i < num_mv_refs; ++i) {
+    this_mv.as_mv = pred_mv[i];
+
+    max_mv = MAX(max_mv,
+                 MAX(abs(this_mv.as_mv.row), abs(this_mv.as_mv.col)) >> 3);
+    // Only need to check zero mv once.
+    if (!this_mv.as_int && zero_seen)
+      continue;
+
+    zero_seen = zero_seen || !this_mv.as_int;
+
+    row_offset = this_mv.as_mv.row >> 3;
+    col_offset = this_mv.as_mv.col >> 3;
+    ref_y_ptr = ref_y_buffer + (ref_y_stride * row_offset) + col_offset;
+
+    // Find sad for current vector.
+    this_sad = cpi->fn_ptr[block_size].sdf(src_y_ptr, x->plane[0].src.stride,
+                                           ref_y_ptr, ref_y_stride);
+
+    // Note if it is the best so far.
+    if (this_sad < best_sad) {
+      best_sad = this_sad;
+      best_index = i;
+    }
+  }
+
+  // Note the index of the mv that worked best in the reference list.
+  x->mv_best_ref_index[ref_frame] = best_index;
+  x->max_mv_context[ref_frame] = max_mv;
+  x->pred_mv_sad[ref_frame] = best_sad;
+}
+
+void vp9_setup_pred_block(const MACROBLOCKD *xd,
+                          struct buf_2d dst[MAX_MB_PLANE],
+                          const YV12_BUFFER_CONFIG *src,
+                          int mi_row, int mi_col,
+                          const struct scale_factors *scale,
+                          const struct scale_factors *scale_uv) {
+  int i;
+
+  dst[0].buf = src->y_buffer;
+  dst[0].stride = src->y_stride;
+  dst[1].buf = src->u_buffer;
+  dst[2].buf = src->v_buffer;
+  dst[1].stride = dst[2].stride = src->uv_stride;
+#if CONFIG_ALPHA
+  dst[3].buf = src->alpha_buffer;
+  dst[3].stride = src->alpha_stride;
+#endif
+
+  for (i = 0; i < MAX_MB_PLANE; ++i) {
+    setup_pred_plane(dst + i, dst[i].buf, dst[i].stride, mi_row, mi_col,
+                     i ? scale_uv : scale,
+                     xd->plane[i].subsampling_x, xd->plane[i].subsampling_y);
+  }
+}
+
+const YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const VP9_COMP *cpi,
+                                                   int ref_frame) {
+  const VP9_COMMON *const cm = &cpi->common;
+  const int ref_idx = cm->ref_frame_map[get_ref_frame_idx(cpi, ref_frame)];
+  const int scaled_idx = cpi->scaled_ref_idx[ref_frame - 1];
+  return (scaled_idx != ref_idx) ? &cm->frame_bufs[scaled_idx].buf : NULL;
+}
+
+int vp9_get_switchable_rate(const VP9_COMP *cpi) {
+  const MACROBLOCKD *const xd = &cpi->mb.e_mbd;
+  const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
+  const int ctx = vp9_get_pred_context_switchable_interp(xd);
+  return SWITCHABLE_INTERP_RATE_FACTOR *
+             cpi->switchable_interp_costs[ctx][mbmi->interp_filter];
+}
+
+void vp9_set_rd_speed_thresholds(VP9_COMP *cpi) {
+  int i;
+  RD_OPT *const rd = &cpi->rd;
+  SPEED_FEATURES *const sf = &cpi->sf;
+
+  // Set baseline threshold values.
+  for (i = 0; i < MAX_MODES; ++i)
+    rd->thresh_mult[i] = is_best_mode(cpi->oxcf.mode) ? -500 : 0;
+
+  rd->thresh_mult[THR_NEARESTMV] = 0;
+  rd->thresh_mult[THR_NEARESTG] = 0;
+  rd->thresh_mult[THR_NEARESTA] = 0;
+
+  rd->thresh_mult[THR_DC] += 1000;
+
+  rd->thresh_mult[THR_NEWMV] += 1000;
+  rd->thresh_mult[THR_NEWA] += 1000;
+  rd->thresh_mult[THR_NEWG] += 1000;
+
+  // Adjust threshold only in real time mode, which only uses last
+  // reference frame.
+  rd->thresh_mult[THR_NEWMV] += sf->elevate_newmv_thresh;
+
+  rd->thresh_mult[THR_NEARMV] += 1000;
+  rd->thresh_mult[THR_NEARA] += 1000;
+  rd->thresh_mult[THR_COMP_NEARESTLA] += 1000;
+  rd->thresh_mult[THR_COMP_NEARESTGA] += 1000;
+
+  rd->thresh_mult[THR_TM] += 1000;
+
+  rd->thresh_mult[THR_COMP_NEARLA] += 1500;
+  rd->thresh_mult[THR_COMP_NEWLA] += 2000;
+  rd->thresh_mult[THR_NEARG] += 1000;
+  rd->thresh_mult[THR_COMP_NEARGA] += 1500;
+  rd->thresh_mult[THR_COMP_NEWGA] += 2000;
+
+  rd->thresh_mult[THR_ZEROMV] += 2000;
+  rd->thresh_mult[THR_ZEROG] += 2000;
+  rd->thresh_mult[THR_ZEROA] += 2000;
+  rd->thresh_mult[THR_COMP_ZEROLA] += 2500;
+  rd->thresh_mult[THR_COMP_ZEROGA] += 2500;
+
+  rd->thresh_mult[THR_H_PRED] += 2000;
+  rd->thresh_mult[THR_V_PRED] += 2000;
+  rd->thresh_mult[THR_D45_PRED ] += 2500;
+  rd->thresh_mult[THR_D135_PRED] += 2500;
+  rd->thresh_mult[THR_D117_PRED] += 2500;
+  rd->thresh_mult[THR_D153_PRED] += 2500;
+  rd->thresh_mult[THR_D207_PRED] += 2500;
+  rd->thresh_mult[THR_D63_PRED] += 2500;
+
+  // Disable frame modes if flags not set.
+  if (!(cpi->ref_frame_flags & VP9_LAST_FLAG)) {
+    rd->thresh_mult[THR_NEWMV    ] = INT_MAX;
+    rd->thresh_mult[THR_NEARESTMV] = INT_MAX;
+    rd->thresh_mult[THR_ZEROMV   ] = INT_MAX;
+    rd->thresh_mult[THR_NEARMV   ] = INT_MAX;
+  }
+  if (!(cpi->ref_frame_flags & VP9_GOLD_FLAG)) {
+    rd->thresh_mult[THR_NEARESTG ] = INT_MAX;
+    rd->thresh_mult[THR_ZEROG    ] = INT_MAX;
+    rd->thresh_mult[THR_NEARG    ] = INT_MAX;
+    rd->thresh_mult[THR_NEWG     ] = INT_MAX;
+  }
+  if (!(cpi->ref_frame_flags & VP9_ALT_FLAG)) {
+    rd->thresh_mult[THR_NEARESTA ] = INT_MAX;
+    rd->thresh_mult[THR_ZEROA    ] = INT_MAX;
+    rd->thresh_mult[THR_NEARA    ] = INT_MAX;
+    rd->thresh_mult[THR_NEWA     ] = INT_MAX;
+  }
+
+  if ((cpi->ref_frame_flags & (VP9_LAST_FLAG | VP9_ALT_FLAG)) !=
+      (VP9_LAST_FLAG | VP9_ALT_FLAG)) {
+    rd->thresh_mult[THR_COMP_ZEROLA   ] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEARESTLA] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEARLA   ] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEWLA    ] = INT_MAX;
+  }
+  if ((cpi->ref_frame_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) !=
+      (VP9_GOLD_FLAG | VP9_ALT_FLAG)) {
+    rd->thresh_mult[THR_COMP_ZEROGA   ] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEARESTGA] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEARGA   ] = INT_MAX;
+    rd->thresh_mult[THR_COMP_NEWGA    ] = INT_MAX;
+  }
+}
+
+void vp9_set_rd_speed_thresholds_sub8x8(VP9_COMP *cpi) {
+  const SPEED_FEATURES *const sf = &cpi->sf;
+  RD_OPT *const rd = &cpi->rd;
+  int i;
+
+  for (i = 0; i < MAX_REFS; ++i)
+    rd->thresh_mult_sub8x8[i] = is_best_mode(cpi->oxcf.mode)  ? -500 : 0;
+
+  rd->thresh_mult_sub8x8[THR_LAST] += 2500;
+  rd->thresh_mult_sub8x8[THR_GOLD] += 2500;
+  rd->thresh_mult_sub8x8[THR_ALTR] += 2500;
+  rd->thresh_mult_sub8x8[THR_INTRA] += 2500;
+  rd->thresh_mult_sub8x8[THR_COMP_LA] += 4500;
+  rd->thresh_mult_sub8x8[THR_COMP_GA] += 4500;
+
+  // Check for masked out split cases.
+  for (i = 0; i < MAX_REFS; ++i)
+    if (sf->disable_split_mask & (1 << i))
+      rd->thresh_mult_sub8x8[i] = INT_MAX;
+
+  // Disable mode test if frame flag is not set.
+  if (!(cpi->ref_frame_flags & VP9_LAST_FLAG))
+    rd->thresh_mult_sub8x8[THR_LAST] = INT_MAX;
+  if (!(cpi->ref_frame_flags & VP9_GOLD_FLAG))
+    rd->thresh_mult_sub8x8[THR_GOLD] = INT_MAX;
+  if (!(cpi->ref_frame_flags & VP9_ALT_FLAG))
+    rd->thresh_mult_sub8x8[THR_ALTR] = INT_MAX;
+  if ((cpi->ref_frame_flags & (VP9_LAST_FLAG | VP9_ALT_FLAG)) !=
+      (VP9_LAST_FLAG | VP9_ALT_FLAG))
+    rd->thresh_mult_sub8x8[THR_COMP_LA] = INT_MAX;
+  if ((cpi->ref_frame_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) !=
+      (VP9_GOLD_FLAG | VP9_ALT_FLAG))
+    rd->thresh_mult_sub8x8[THR_COMP_GA] = INT_MAX;
+}