vp9_rdopt.c 145 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
7
 *  in the file PATENTS.  All contributing project authors may
8
 *  be found in the AUTHORS file in the root of the source tree.
John Koleszar's avatar
John Koleszar committed
9
10
11
12
13
14
15
 */


#include <stdio.h>
#include <math.h>
#include <limits.h>
#include <assert.h>
16

17
#include "vp9/common/vp9_pragmas.h"
18
19
20
21
22
#include "vp9/encoder/vp9_tokenize.h"
#include "vp9/encoder/vp9_treewriter.h"
#include "vp9/encoder/vp9_onyx_int.h"
#include "vp9/encoder/vp9_modecosts.h"
#include "vp9/encoder/vp9_encodeintra.h"
23
24
25
26
27
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_quant_common.h"
28
29
30
31
32
33
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_variance.h"
#include "vp9/encoder/vp9_mcomp.h"
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_ratectrl.h"
John Koleszar's avatar
John Koleszar committed
34
#include "vpx_mem/vpx_mem.h"
35
36
37
38
39
#include "vp9/common/vp9_systemdependent.h"
#include "vp9/encoder/vp9_encodemv.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_entropy.h"
40
#include "vp9_rtcd.h"
41
#include "vp9/common/vp9_mvref_common.h"
Ronald S. Bultje's avatar
Ronald S. Bultje committed
42
#include "vp9/common/vp9_common.h"
Paul Wilkins's avatar
Paul Wilkins committed
43

44
45
#define INVALID_MV 0x80008000

46
47
48
/* Factor to weigh the rate for switchable interp filters */
#define SWITCHABLE_INTERP_RATE_FACTOR 1

49
50
51
DECLARE_ALIGNED(16, extern const uint8_t,
                vp9_pt_energy_class[MAX_ENTROPY_TOKENS]);

Ronald S. Bultje's avatar
Ronald S. Bultje committed
52
#define I4X4_PRED 0x8000
Ronald S. Bultje's avatar
Ronald S. Bultje committed
53
#define SPLITMV 0x10000
Ronald S. Bultje's avatar
Ronald S. Bultje committed
54

55
const MODE_DEFINITION vp9_mode_order[MAX_MODES] = {
56
  {ZEROMV,    LAST_FRAME,   NONE},
57
58
  {DC_PRED,   INTRA_FRAME,  NONE},

59
60
  {NEARESTMV, LAST_FRAME,   NONE},
  {NEARMV,    LAST_FRAME,   NONE},
John Koleszar's avatar
John Koleszar committed
61

62
63
64
  {ZEROMV,    GOLDEN_FRAME, NONE},
  {NEARESTMV, GOLDEN_FRAME, NONE},

65
66
67
  {ZEROMV,    ALTREF_FRAME, NONE},
  {NEARESTMV, ALTREF_FRAME, NONE},

68
69
  {NEARMV,    GOLDEN_FRAME, NONE},
  {NEARMV,    ALTREF_FRAME, NONE},
John Koleszar's avatar
John Koleszar committed
70

71
72
73
74
75
76
77
78
  {V_PRED,    INTRA_FRAME,  NONE},
  {H_PRED,    INTRA_FRAME,  NONE},
  {D45_PRED,  INTRA_FRAME,  NONE},
  {D135_PRED, INTRA_FRAME,  NONE},
  {D117_PRED, INTRA_FRAME,  NONE},
  {D153_PRED, INTRA_FRAME,  NONE},
  {D27_PRED,  INTRA_FRAME,  NONE},
  {D63_PRED,  INTRA_FRAME,  NONE},
John Koleszar's avatar
John Koleszar committed
79

80
81
  {TM_PRED,   INTRA_FRAME,  NONE},

82
83
84
  {NEWMV,     LAST_FRAME,   NONE},
  {NEWMV,     GOLDEN_FRAME, NONE},
  {NEWMV,     ALTREF_FRAME, NONE},
John Koleszar's avatar
John Koleszar committed
85

86
87
88
89
90
91
  {SPLITMV,   LAST_FRAME,   NONE},
  {SPLITMV,   GOLDEN_FRAME, NONE},
  {SPLITMV,   ALTREF_FRAME, NONE},

  {I4X4_PRED, INTRA_FRAME,  NONE},

John Koleszar's avatar
John Koleszar committed
92
  /* compound prediction modes */
Ronald S. Bultje's avatar
Ronald S. Bultje committed
93
94
95
  {ZEROMV,    LAST_FRAME,   ALTREF_FRAME},
  {NEARESTMV, LAST_FRAME,   ALTREF_FRAME},
  {NEARMV,    LAST_FRAME,   ALTREF_FRAME},
96

John Koleszar's avatar
John Koleszar committed
97
98
99
  {ZEROMV,    GOLDEN_FRAME, ALTREF_FRAME},
  {NEARESTMV, GOLDEN_FRAME, ALTREF_FRAME},
  {NEARMV,    GOLDEN_FRAME, ALTREF_FRAME},
100

Ronald S. Bultje's avatar
Ronald S. Bultje committed
101
  {NEWMV,     LAST_FRAME,   ALTREF_FRAME},
John Koleszar's avatar
John Koleszar committed
102
  {NEWMV,     GOLDEN_FRAME, ALTREF_FRAME},
103

Ronald S. Bultje's avatar
Ronald S. Bultje committed
104
  {SPLITMV,   LAST_FRAME,   ALTREF_FRAME},
105
  {SPLITMV,   GOLDEN_FRAME, ALTREF_FRAME},
John Koleszar's avatar
John Koleszar committed
106
107
};

108
109
110
111
112
113
114
115
116
117
118
// 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 blocks size.
// The factors here are << 2 (2 = x0.5, 32 = x8 etc).
static int rd_thresh_block_size_factor[BLOCK_SIZE_TYPES] =
  {2, 3, 3, 4, 6, 6, 8, 12, 12, 16, 24, 24, 32};

#define BASE_RD_THRESH_FREQ_FACT 16
#define MAX_RD_THRESH_FREQ_FACT 32
#define MAX_RD_THRESH_FREQ_INC 1

119
static void fill_token_costs(vp9_coeff_count (*c)[BLOCK_TYPES][2],
120
                             vp9_coeff_probs_model (*p)[BLOCK_TYPES]) {
121
  int i, j, k, l;
122
123
124
125
126
127
128
129
  TX_SIZE t;
  for (t = TX_4X4; t <= TX_32X32; t++)
    for (i = 0; i < BLOCK_TYPES; i++)
      for (j = 0; j < REF_TYPES; j++)
        for (k = 0; k < COEF_BANDS; k++)
          for (l = 0; l < PREV_COEF_CONTEXTS; l++) {
            vp9_prob probs[ENTROPY_NODES];
            vp9_model_to_full_probs(p[t][i][j][k][l], probs);
130
            vp9_cost_tokens((int *)c[t][i][j][0][k][l], probs,
131
                            vp9_coef_tree);
132
#if CONFIG_BALANCED_COEFTREE
133
134
135
            // Replace the eob node prob with a very small value so that the
            // cost approximately equals the cost without the eob node
            probs[1] = 1;
136
            vp9_cost_tokens((int *)c[t][i][j][1][k][l], probs, vp9_coef_tree);
137
#else
138
            vp9_cost_tokens_skip((int *)c[t][i][j][1][k][l], probs,
139
                                 vp9_coef_tree);
140
141
            assert(c[t][i][j][0][k][l][DCT_EOB_TOKEN] ==
                   c[t][i][j][1][k][l][DCT_EOB_TOKEN]);
142
#endif
143
          }
144
145
}

146
147
148
149
static int 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, };
John Koleszar's avatar
John Koleszar committed
150

151
// 3* dc_qlookup[Q]*dc_qlookup[Q];
152

153
/* values are now correlated to quantizer */
Paul Wilkins's avatar
Paul Wilkins committed
154
155
156
static int sad_per_bit16lut[QINDEX_RANGE];
static int sad_per_bit4lut[QINDEX_RANGE];

157
void vp9_init_me_luts() {
John Koleszar's avatar
John Koleszar committed
158
159
160
161
162
163
164
  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++) {
    sad_per_bit16lut[i] =
165
      (int)((0.0418 * vp9_convert_qindex_to_q(i)) + 2.4107);
166
    sad_per_bit4lut[i] = (int)(0.063 * vp9_convert_qindex_to_q(i) + 2.742);
John Koleszar's avatar
John Koleszar committed
167
  }
Paul Wilkins's avatar
Paul Wilkins committed
168
}
John Koleszar's avatar
John Koleszar committed
169

170
static int compute_rd_mult(int qindex) {
171
  const int q = vp9_dc_quant(qindex, 0);
172
  return (11 * q * q) >> 2;
173
174
}

Dmitry Kovalev's avatar
Dmitry Kovalev committed
175
176
177
void vp9_initialize_me_consts(VP9_COMP *cpi, int qindex) {
  cpi->mb.sadperbit16 = sad_per_bit16lut[qindex];
  cpi->mb.sadperbit4 = sad_per_bit4lut[qindex];
John Koleszar's avatar
John Koleszar committed
178
179
}

180

Dmitry Kovalev's avatar
Dmitry Kovalev committed
181
void vp9_initialize_rd_consts(VP9_COMP *cpi, int qindex) {
182
  int q, i, bsize;
John Koleszar's avatar
John Koleszar committed
183

184
  vp9_clear_system_state();  // __asm emms;
John Koleszar's avatar
John Koleszar committed
185

John Koleszar's avatar
John Koleszar committed
186
187
188
189
  // Further tests required to see if optimum is different
  // for key frames, golden frames and arf frames.
  // if (cpi->common.refresh_golden_frame ||
  //     cpi->common.refresh_alt_ref_frame)
190
  qindex = clamp(qindex, 0, MAXQ);
191

Dmitry Kovalev's avatar
Dmitry Kovalev committed
192
  cpi->RDMULT = compute_rd_mult(qindex);
John Koleszar's avatar
John Koleszar committed
193
194
195
196
197
  if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME)) {
    if (cpi->twopass.next_iiratio > 31)
      cpi->RDMULT += (cpi->RDMULT * rd_iifactor[31]) >> 4;
    else
      cpi->RDMULT +=
Dmitry Kovalev's avatar
Dmitry Kovalev committed
198
          (cpi->RDMULT * rd_iifactor[cpi->twopass.next_iiratio]) >> 4;
John Koleszar's avatar
John Koleszar committed
199
  }
200
  cpi->mb.errorperbit = cpi->RDMULT >> 6;
John Koleszar's avatar
John Koleszar committed
201
  cpi->mb.errorperbit += (cpi->mb.errorperbit == 0);
202

203
  vp9_set_speed_features(cpi);
John Koleszar's avatar
John Koleszar committed
204

Dmitry Kovalev's avatar
Dmitry Kovalev committed
205
206
  q = (int)pow(vp9_dc_quant(qindex, 0) >> 2, 1.25);
  q <<= 2;
John Koleszar's avatar
John Koleszar committed
207
208
  if (q < 8)
    q = 8;
209

John Koleszar's avatar
John Koleszar committed
210
211
212
  if (cpi->RDMULT > 1000) {
    cpi->RDDIV = 1;
    cpi->RDMULT /= 100;
John Koleszar's avatar
John Koleszar committed
213

214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
    for (bsize = 0; bsize < BLOCK_SIZE_TYPES; ++bsize) {
      for (i = 0; i < MAX_MODES; ++i) {
        // Threshold here seem unecessarily harsh but fine given actual
        // range of values used for cpi->sf.thresh_mult[]
        int thresh_max = INT_MAX / (q * rd_thresh_block_size_factor[bsize]);

        // *4 relates to the scaling of rd_thresh_block_size_factor[]
        if ((int64_t)cpi->sf.thresh_mult[i] < thresh_max) {
          cpi->rd_threshes[bsize][i] =
            cpi->sf.thresh_mult[i] * q *
            rd_thresh_block_size_factor[bsize] / (4 * 100);
        } else {
          cpi->rd_threshes[bsize][i] = INT_MAX;
        }
        cpi->rd_baseline_thresh[bsize][i] = cpi->rd_threshes[bsize][i];
229

230
        if (cpi->sf.adaptive_rd_thresh)
Paul Wilkins's avatar
Paul Wilkins committed
231
232
233
          cpi->rd_thresh_freq_fact[bsize][i] = MAX_RD_THRESH_FREQ_FACT;
        else
          cpi->rd_thresh_freq_fact[bsize][i] = BASE_RD_THRESH_FREQ_FACT;
John Koleszar's avatar
John Koleszar committed
234
      }
John Koleszar's avatar
John Koleszar committed
235
    }
John Koleszar's avatar
John Koleszar committed
236
237
  } else {
    cpi->RDDIV = 100;
John Koleszar's avatar
John Koleszar committed
238

239
240
241
242
243
244
245
246
247
248
249
250
251
252
    for (bsize = 0; bsize < BLOCK_SIZE_TYPES; ++bsize) {
      for (i = 0; i < MAX_MODES; i++) {
        // Threshold here seem unecessarily harsh but fine given actual
        // range of values used for cpi->sf.thresh_mult[]
        int thresh_max = INT_MAX / (q * rd_thresh_block_size_factor[bsize]);

        if (cpi->sf.thresh_mult[i] < thresh_max) {
          cpi->rd_threshes[bsize][i] =
            cpi->sf.thresh_mult[i] * q *
            rd_thresh_block_size_factor[bsize] / 4;
        } else {
          cpi->rd_threshes[bsize][i] = INT_MAX;
        }
        cpi->rd_baseline_thresh[bsize][i] = cpi->rd_threshes[bsize][i];
Paul Wilkins's avatar
Paul Wilkins committed
253

254
        if (cpi->sf.adaptive_rd_thresh)
Paul Wilkins's avatar
Paul Wilkins committed
255
256
257
          cpi->rd_thresh_freq_fact[bsize][i] = MAX_RD_THRESH_FREQ_FACT;
        else
          cpi->rd_thresh_freq_fact[bsize][i] = BASE_RD_THRESH_FREQ_FACT;
John Koleszar's avatar
John Koleszar committed
258
      }
John Koleszar's avatar
John Koleszar committed
259
    }
John Koleszar's avatar
John Koleszar committed
260
  }
John Koleszar's avatar
John Koleszar committed
261

262
  fill_token_costs(cpi->mb.token_costs, cpi->common.fc.coef_probs);
263

264
  for (i = 0; i < NUM_PARTITION_CONTEXTS; i++)
265
    vp9_cost_tokens(cpi->mb.partition_cost[i],
266
                    cpi->common.fc.partition_prob[cpi->common.frame_type][i],
267
268
                    vp9_partition_tree);

John Koleszar's avatar
John Koleszar committed
269
  /*rough estimate for costing*/
270
  vp9_init_mode_costs(cpi);
John Koleszar's avatar
John Koleszar committed
271

272
  if (cpi->common.frame_type != KEY_FRAME) {
273
    vp9_build_nmv_cost_table(
274
275
276
277
278
        cpi->mb.nmvjointcost,
        cpi->mb.e_mbd.allow_high_precision_mv ?
        cpi->mb.nmvcost_hp : cpi->mb.nmvcost,
        &cpi->common.fc.nmvc,
        cpi->mb.e_mbd.allow_high_precision_mv, 1, 1);
279
280
281
282
283
284
285
286
287
288

    for (i = 0; i < INTER_MODE_CONTEXTS; i++) {
      MB_PREDICTION_MODE m;

      for (m = NEARESTMV; m < MB_MODE_COUNT; m++)
        cpi->mb.inter_mode_cost[i][m - NEARESTMV] =
            cost_token(vp9_sb_mv_ref_tree,
                       cpi->common.fc.inter_mode_probs[i],
                       vp9_sb_mv_ref_encoding_array - NEARESTMV + m);
    }
289
  }
John Koleszar's avatar
John Koleszar committed
290
291
}

292
293
static INLINE BLOCK_SIZE_TYPE get_block_size(int bwl, int bhl) {
  return bsize_from_dim_lookup[bwl][bhl];
Deb Mukherjee's avatar
Deb Mukherjee committed
294
295
}

296
297
298
299
static BLOCK_SIZE_TYPE get_plane_block_size(BLOCK_SIZE_TYPE bsize,
                                            struct macroblockd_plane *pd) {
  return get_block_size(plane_block_width_log2by4(bsize, pd),
                        plane_block_height_log2by4(bsize, pd));
Deb Mukherjee's avatar
Deb Mukherjee committed
300
301
}

302
303
304
static inline void linear_interpolate2(double x, int ntab, int inv_step,
                                       const double *tab1, const double *tab2,
                                       double *v1, double *v2) {
Deb Mukherjee's avatar
Deb Mukherjee committed
305
306
307
  double y = x * inv_step;
  int d = (int) y;
  if (d >= ntab - 1) {
308
309
    *v1 = tab1[ntab - 1];
    *v2 = tab2[ntab - 1];
Deb Mukherjee's avatar
Deb Mukherjee committed
310
311
  } else {
    double a = y - d;
312
313
    *v1 = tab1[d] * (1 - a) + tab1[d + 1] * a;
    *v2 = tab2[d] * (1 - a) + tab2[d + 1] * a;
Deb Mukherjee's avatar
Deb Mukherjee committed
314
315
316
  }
}

317
318
319
320
321
static void model_rd_norm(double x, double *R, double *D) {
  static const int inv_tab_step = 8;
  static const int tab_size = 120;
  // NOTE: The tables below must be of the same size
  //
Deb Mukherjee's avatar
Deb Mukherjee committed
322
  // Normalized rate
323
  // This table models the rate for a Laplacian source
Deb Mukherjee's avatar
Deb Mukherjee committed
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
  // 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 double rate_tab[] = {
    64.00, 4.944, 3.949, 3.372, 2.966, 2.655, 2.403, 2.194,
    2.014, 1.858, 1.720, 1.596, 1.485, 1.384, 1.291, 1.206,
    1.127, 1.054, 0.986, 0.923, 0.863, 0.808, 0.756, 0.708,
    0.662, 0.619, 0.579, 0.541, 0.506, 0.473, 0.442, 0.412,
    0.385, 0.359, 0.335, 0.313, 0.291, 0.272, 0.253, 0.236,
    0.220, 0.204, 0.190, 0.177, 0.165, 0.153, 0.142, 0.132,
    0.123, 0.114, 0.106, 0.099, 0.091, 0.085, 0.079, 0.073,
    0.068, 0.063, 0.058, 0.054, 0.050, 0.047, 0.043, 0.040,
    0.037, 0.034, 0.032, 0.029, 0.027, 0.025, 0.023, 0.022,
    0.020, 0.019, 0.017, 0.016, 0.015, 0.014, 0.013, 0.012,
    0.011, 0.010, 0.009, 0.008, 0.008, 0.007, 0.007, 0.006,
    0.006, 0.005, 0.005, 0.005, 0.004, 0.004, 0.004, 0.003,
    0.003, 0.003, 0.003, 0.002, 0.002, 0.002, 0.002, 0.002,
    0.002, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001,
    0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.000,
  };
  // Normalized distortion
347
  // This table models the normalized distortion for a Laplacian source
Deb Mukherjee's avatar
Deb Mukherjee committed
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
  // 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 double dist_tab[] = {
    0.000, 0.001, 0.005, 0.012, 0.021, 0.032, 0.045, 0.061,
    0.079, 0.098, 0.119, 0.142, 0.166, 0.190, 0.216, 0.242,
    0.269, 0.296, 0.324, 0.351, 0.378, 0.405, 0.432, 0.458,
    0.484, 0.509, 0.534, 0.557, 0.580, 0.603, 0.624, 0.645,
    0.664, 0.683, 0.702, 0.719, 0.735, 0.751, 0.766, 0.780,
    0.794, 0.807, 0.819, 0.830, 0.841, 0.851, 0.861, 0.870,
    0.878, 0.886, 0.894, 0.901, 0.907, 0.913, 0.919, 0.925,
    0.930, 0.935, 0.939, 0.943, 0.947, 0.951, 0.954, 0.957,
    0.960, 0.963, 0.966, 0.968, 0.971, 0.973, 0.975, 0.976,
    0.978, 0.980, 0.981, 0.982, 0.984, 0.985, 0.986, 0.987,
    0.988, 0.989, 0.990, 0.990, 0.991, 0.992, 0.992, 0.993,
    0.993, 0.994, 0.994, 0.995, 0.995, 0.996, 0.996, 0.996,
    0.996, 0.997, 0.997, 0.997, 0.997, 0.998, 0.998, 0.998,
    0.998, 0.998, 0.998, 0.999, 0.999, 0.999, 0.999, 0.999,
    0.999, 0.999, 0.999, 0.999, 0.999, 0.999, 0.999, 1.000,
  };
370
371
372
373
374
  /*
  assert(sizeof(rate_tab) == tab_size * sizeof(rate_tab[0]);
  assert(sizeof(dist_tab) == tab_size * sizeof(dist_tab[0]);
  assert(sizeof(rate_tab) == sizeof(dist_tab));
  */
Deb Mukherjee's avatar
Deb Mukherjee committed
375
  assert(x >= 0.0);
376
377
  linear_interpolate2(x, tab_size, inv_tab_step,
                      rate_tab, dist_tab, R, D);
Deb Mukherjee's avatar
Deb Mukherjee committed
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
}

static void model_rd_from_var_lapndz(int var, int n, 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.
  vp9_clear_system_state();
  if (var == 0 || n == 0) {
    *rate = 0;
    *dist = 0;
  } else {
    double D, R;
    double s2 = (double) var / n;
    double x = qstep / sqrt(s2);
396
397
398
    model_rd_norm(x, &R, &D);
    *rate = ((n << 8) * R + 0.5);
    *dist = (var * D + 0.5);
Deb Mukherjee's avatar
Deb Mukherjee committed
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
  }
  vp9_clear_system_state();
}

static void model_rd_for_sb(VP9_COMP *cpi, BLOCK_SIZE_TYPE bsize,
                            MACROBLOCK *x, MACROBLOCKD *xd,
                            int *out_rate_sum, int64_t *out_dist_sum) {
  // 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.
  int i, rate_sum = 0, dist_sum = 0;

  for (i = 0; i < MAX_MB_PLANE; ++i) {
    struct macroblock_plane *const p = &x->plane[i];
    struct macroblockd_plane *const pd = &xd->plane[i];

    // TODO(dkovalev) the same code in get_plane_block_size
416
417
418
    const int bwl = plane_block_width_log2by4(bsize, pd);
    const int bhl = plane_block_height_log2by4(bsize, pd);
    const BLOCK_SIZE_TYPE bs = get_block_size(bwl, bhl);
Deb Mukherjee's avatar
Deb Mukherjee committed
419
420
421
422
423
424
    unsigned int sse;
    int rate;
    int64_t dist;
    (void) cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
                              pd->dst.buf, pd->dst.stride, &sse);
    // sse works better than var, since there is no dc prediction used
425
426
    model_rd_from_var_lapndz(sse, 16 << (bwl + bhl),
                             pd->dequant[1] >> 3, &rate, &dist);
Deb Mukherjee's avatar
Deb Mukherjee committed
427
428
429
430
431
432
433
434
435

    rate_sum += rate;
    dist_sum += dist;
  }

  *out_rate_sum = rate_sum;
  *out_dist_sum = dist_sum << 4;
}

436
437
438
439
440
441
442
443
444
445
static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE_TYPE bsize,
                              MACROBLOCK *x, MACROBLOCKD *xd,
                              int *out_rate_sum, int64_t *out_dist_sum) {
  // 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.
  struct macroblock_plane *const p = &x->plane[0];
  struct macroblockd_plane *const pd = &xd->plane[0];

  // TODO(dkovalev) the same code in get_plane_block_size
446
447
448
  const int bwl = plane_block_width_log2by4(bsize, pd);
  const int bhl = plane_block_height_log2by4(bsize, pd);
  const BLOCK_SIZE_TYPE bs = get_block_size(bwl, bhl);
449
450
451
452
453
454
  unsigned int sse;
  int rate;
  int64_t dist;
  (void) cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
                            pd->dst.buf, pd->dst.stride, &sse);
  // sse works better than var, since there is no dc prediction used
455
456
  model_rd_from_var_lapndz(sse, 16 << (bwl + bhl),
                           pd->dequant[1] >> 3, &rate, &dist);
457
458
459
460
461

  *out_rate_sum = rate;
  *out_dist_sum = dist << 4;
}

Deb Mukherjee's avatar
Deb Mukherjee committed
462
463
464
465
466
static void model_rd_for_sb_y_tx(VP9_COMP *cpi, BLOCK_SIZE_TYPE bsize,
                                 TX_SIZE tx_size,
                                 MACROBLOCK *x, MACROBLOCKD *xd,
                                 int *out_rate_sum, int64_t *out_dist_sum,
                                 int *out_skip) {
467
  int t = 4, j, k;
468
  BLOCK_SIZE_TYPE bs = BLOCK_SIZE_AB4X4;
Deb Mukherjee's avatar
Deb Mukherjee committed
469
470
  struct macroblock_plane *const p = &x->plane[0];
  struct macroblockd_plane *const pd = &xd->plane[0];
471
472
473
474
  const int bwl = plane_block_width_log2by4(bsize, pd);
  const int bhl = plane_block_height_log2by4(bsize, pd);
  const int bw = 4 << bwl;
  const int bh = 4 << bhl;
Deb Mukherjee's avatar
Deb Mukherjee committed
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
  int rate_sum = 0;
  int64_t dist_sum = 0;

  if (tx_size == TX_4X4) {
    bs = BLOCK_4X4;
    t = 4;
  } else if (tx_size == TX_8X8) {
    bs = BLOCK_8X8;
    t = 8;
  } else if (tx_size == TX_16X16) {
    bs = BLOCK_16X16;
    t = 16;
  } else if (tx_size == TX_32X32) {
    bs = BLOCK_32X32;
    t = 32;
  } else {
    assert(0);
  }
493
  assert(bs <= get_block_size(bwl, bhl));
Deb Mukherjee's avatar
Deb Mukherjee committed
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
  *out_skip = 1;
  for (j = 0; j < bh; j+=t) {
    for (k = 0; k < bw; k+=t) {
      int rate;
      int64_t dist;
      unsigned int sse;
      (void) cpi->fn_ptr[bs].vf(p->src.buf + j * p->src.stride + k,
                                p->src.stride,
                                pd->dst.buf + j * pd->dst.stride + k,
                                pd->dst.stride, &sse);
      // sse works better than var, since there is no dc prediction used
      model_rd_from_var_lapndz(sse, t * t, pd->dequant[1] >> 3,
                               &rate, &dist);
      rate_sum += rate;
      dist_sum += dist;
      *out_skip &= (rate < 1024);
    }
  }
  *out_rate_sum = rate_sum;
  *out_dist_sum = (dist_sum << 4);
}

Ronald S. Bultje's avatar
Ronald S. Bultje committed
516
int64_t vp9_block_error_c(int16_t *coeff, int16_t *dqcoeff,
517
                          intptr_t block_size, int64_t *ssz) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
518
  int i;
519
  int64_t error = 0, sqcoeff = 0;
John Koleszar's avatar
John Koleszar committed
520

521
  for (i = 0; i < block_size; i++) {
John Koleszar's avatar
John Koleszar committed
522
    int this_diff = coeff[i] - dqcoeff[i];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
523
    error += (unsigned)this_diff * this_diff;
524
    sqcoeff += (unsigned) coeff[i] * coeff[i];
John Koleszar's avatar
John Koleszar committed
525
  }
John Koleszar's avatar
John Koleszar committed
526

527
  *ssz = sqcoeff;
John Koleszar's avatar
John Koleszar committed
528
  return error;
John Koleszar's avatar
John Koleszar committed
529
530
}

531
static INLINE int cost_coeffs(VP9_COMMON *const cm, MACROBLOCK *mb,
532
                              int plane, int block, PLANE_TYPE type,
533
534
                              ENTROPY_CONTEXT *A,
                              ENTROPY_CONTEXT *L,
John Koleszar's avatar
John Koleszar committed
535
536
                              TX_SIZE tx_size,
                              int y_blocks) {
537
  MACROBLOCKD *const xd = &mb->e_mbd;
538
539
  MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
  int pt;
540
  int c = 0;
541
  int cost = 0;
542
  const int16_t *scan = NULL, *nb;
543
  const int eob = xd->plane[plane].eobs[block];
544
  const int16_t *qcoeff_ptr = BLOCK_OFFSET(xd->plane[plane].qcoeff, block, 16);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
545
  const int ref = mbmi->ref_frame[0] != INTRA_FRAME;
546
547
  unsigned int (*token_costs)[COEF_BANDS][PREV_COEF_CONTEXTS]
                    [MAX_ENTROPY_TOKENS] = mb->token_costs[tx_size][type][ref];
548
  ENTROPY_CONTEXT above_ec = 0, left_ec = 0;
549
  TX_TYPE tx_type = DCT_DCT;
550
  const int segment_id = xd->mode_info_context->mbmi.segment_id;
551
  int seg_eob = 0;
552
  uint8_t token_cache[1024];
553
  const uint8_t *band_translate = NULL;
554
555

  // Check for consistency of tx_size with mode info
556
  assert((!type && !plane) || (type && plane));
557
558
559
  if (type == PLANE_TYPE_Y_WITH_DC) {
    assert(xd->mode_info_context->mbmi.txfm_size == tx_size);
  } else {
560
    assert(tx_size == get_uv_tx_size(mbmi));
561
562
  }

563
  switch (tx_size) {
564
    case TX_4X4: {
565
      tx_type = (type == PLANE_TYPE_Y_WITH_DC) ?
566
          get_tx_type_4x4(xd, block) : DCT_DCT;
567
568
      above_ec = A[0] != 0;
      left_ec = L[0] != 0;
569
      seg_eob = 16;
570
      scan = get_scan_4x4(tx_type);
Paul Wilkins's avatar
Paul Wilkins committed
571
      band_translate = vp9_coefband_trans_4x4;
Daniel Kang's avatar
Daniel Kang committed
572
      break;
573
    }
574
    case TX_8X8: {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
575
576
      const TX_TYPE tx_type = type == PLANE_TYPE_Y_WITH_DC ?
                                  get_tx_type_8x8(xd) : DCT_DCT;
577
578
      above_ec = (A[0] + A[1]) != 0;
      left_ec = (L[0] + L[1]) != 0;
579
      scan = get_scan_8x8(tx_type);
580
      seg_eob = 64;
Paul Wilkins's avatar
Paul Wilkins committed
581
      band_translate = vp9_coefband_trans_8x8plus;
Daniel Kang's avatar
Daniel Kang committed
582
      break;
583
584
    }
    case TX_16X16: {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
585
586
      const TX_TYPE tx_type = type == PLANE_TYPE_Y_WITH_DC ?
                                  get_tx_type_16x16(xd) : DCT_DCT;
587
      scan = get_scan_16x16(tx_type);
588
      seg_eob = 256;
589
590
      above_ec = (A[0] + A[1] + A[2] + A[3]) != 0;
      left_ec = (L[0] + L[1] + L[2] + L[3]) != 0;
Paul Wilkins's avatar
Paul Wilkins committed
591
      band_translate = vp9_coefband_trans_8x8plus;
Daniel Kang's avatar
Daniel Kang committed
592
      break;
593
    }
594
    case TX_32X32:
Paul Wilkins's avatar
Paul Wilkins committed
595
      scan = vp9_default_scan_32x32;
596
      seg_eob = 1024;
597
598
      above_ec = (A[0] + A[1] + A[2] + A[3] + A[4] + A[5] + A[6] + A[7]) != 0;
      left_ec = (L[0] + L[1] + L[2] + L[3] + L[4] + L[5] + L[6] + L[7]) != 0;
Paul Wilkins's avatar
Paul Wilkins committed
599
      band_translate = vp9_coefband_trans_8x8plus;
600
      break;
Daniel Kang's avatar
Daniel Kang committed
601
    default:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
602
      assert(0);
Daniel Kang's avatar
Daniel Kang committed
603
604
      break;
  }
John Koleszar's avatar
John Koleszar committed
605
  assert(eob <= seg_eob);
606

607
  pt = combine_entropy_contexts(above_ec, left_ec);
608
  nb = vp9_get_coef_neighbors_handle(scan);
609

610
  if (vp9_segfeature_active(&xd->seg, segment_id, SEG_LVL_SKIP))
611
    seg_eob = 0;
612

613
614
615
616
  /* sanity check to ensure that we do not have spurious non-zero q values */
  if (eob < seg_eob)
    assert(qcoeff_ptr[scan[eob]] == 0);

617
618
619
620
  if (eob == 0) {
    // single eob token
    cost += token_costs[0][0][pt][DCT_EOB_TOKEN];
  } else {
621
    int v, prev_t;
622
623
624

    // dc token
    v = qcoeff_ptr[0];
625
626
627
    prev_t = vp9_dct_value_tokens_ptr[v].token;
    cost += token_costs[0][0][pt][prev_t] + vp9_dct_value_cost_ptr[v];
    token_cache[0] = vp9_pt_energy_class[prev_t];
628
629
630
631

    // ac tokens
    for (c = 1; c < eob; c++) {
      const int rc = scan[c];
632
633
      const int band = get_coef_band(band_translate, c);
      int t;
634
635
636

      v = qcoeff_ptr[rc];
      t = vp9_dct_value_tokens_ptr[v].token;
637
      pt = get_coef_context(nb, token_cache, c);
638
      cost += token_costs[!prev_t][band][pt][t] + vp9_dct_value_cost_ptr[v];
639
      token_cache[rc] = vp9_pt_energy_class[t];
640
      prev_t = t;
641
    }
642
643

    // eob token
644
    if (c < seg_eob) {
645
      pt = get_coef_context(nb, token_cache, c);
646
647
      cost += token_costs[0][get_coef_band(band_translate, c)][pt]
                         [DCT_EOB_TOKEN];
648
    }
649
650
  }

651
652
653
  // is eob first coefficient;
  for (pt = 0; pt < (1 << tx_size); pt++) {
    A[pt] = L[pt] = c > 0;
654
  }
655

656
657
658
  return cost;
}

Deb Mukherjee's avatar
Deb Mukherjee committed
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
struct rdcost_block_args {
  VP9_COMMON *cm;
  MACROBLOCK *x;
  ENTROPY_CONTEXT t_above[16];
  ENTROPY_CONTEXT t_left[16];
  TX_SIZE tx_size;
  int bw;
  int bh;
  int rate;
  int64_t dist;
  int64_t sse;
  int64_t best_rd;
  int skip;
};

static void dist_block(int plane, int block, BLOCK_SIZE_TYPE bsize,
                       int ss_txfrm_size, void *arg) {
  struct rdcost_block_args* args = arg;
  MACROBLOCK* const x = args->x;
  MACROBLOCKD* const xd = &x->e_mbd;
  struct macroblock_plane *const p = &x->plane[0];
  struct macroblockd_plane *const pd = &xd->plane[0];
  int64_t this_sse;
  int shift = args->tx_size == TX_32X32 ? 0 : 2;
  int16_t *const coeff = BLOCK_OFFSET(p->coeff, block, 16);
  int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block, 16);
  args->dist += vp9_block_error(coeff, dqcoeff, 16 << ss_txfrm_size,
                                &this_sse) >> shift;
  args->sse += this_sse >> shift;
}

static void rate_block(int plane, int block, BLOCK_SIZE_TYPE bsize,
                       int ss_txfrm_size, void *arg) {
  struct rdcost_block_args* args = arg;
  int x_idx, y_idx;
  MACROBLOCKD * const xd = &args->x->e_mbd;

  txfrm_block_to_raster_xy(xd, bsize, plane, block, args->tx_size * 2, &x_idx,
                           &y_idx);

  args->rate += cost_coeffs(args->cm, args->x, plane, block,
                            xd->plane[plane].plane_type, args->t_above + x_idx,
                            args->t_left + y_idx, args->tx_size,
                            args->bw * args->bh);
}

705
706
// FIXME(jingning): need to make the rd test of chroma components consistent
// with that of luma component. this function should be deprecated afterwards.
Deb Mukherjee's avatar
Deb Mukherjee committed
707
708
709
710
711
712
713
static int rdcost_plane(VP9_COMMON * const cm, MACROBLOCK *x, int plane,
                        BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) {
  MACROBLOCKD * const xd = &x->e_mbd;
  const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int bhl = b_height_log2(bsize) - xd->plane[plane].subsampling_y;
  const int bw = 1 << bwl, bh = 1 << bhl;
  struct rdcost_block_args args = { cm, x, { 0 }, { 0 }, tx_size, bw, bh,
714
    0, 0, 0, INT64_MAX, 0 };
Deb Mukherjee's avatar
Deb Mukherjee committed
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737

  vpx_memcpy(&args.t_above, xd->plane[plane].above_context,
             sizeof(ENTROPY_CONTEXT) * bw);
  vpx_memcpy(&args.t_left, xd->plane[plane].left_context,
             sizeof(ENTROPY_CONTEXT) * bh);

  foreach_transformed_block_in_plane(xd, bsize, plane, rate_block, &args);
  return args.rate;
}

static int rdcost_uv(VP9_COMMON *const cm, MACROBLOCK *x,
                     BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) {
  int cost = 0, plane;

  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
    cost += rdcost_plane(cm, x, plane, bsize, tx_size);
  }
  return cost;
}

static int block_error_sby(MACROBLOCK *x, BLOCK_SIZE_TYPE bsize,
                           int shift, int64_t *sse) {
  struct macroblockd_plane *p = &x->e_mbd.plane[0];
738
739
  const int bwl = plane_block_width_log2by4(bsize, p);
  const int bhl = plane_block_height_log2by4(bsize, p);
Deb Mukherjee's avatar
Deb Mukherjee committed
740
  int64_t e = vp9_block_error(x->plane[0].coeff, x->e_mbd.plane[0].dqcoeff,
741
                              16 << (bwl + bhl), sse) >> shift;
Deb Mukherjee's avatar
Deb Mukherjee committed
742
743
744
745
746
747
748
749
750
751
752
753
  *sse >>= shift;
  return e;
}

static int64_t block_error_sbuv(MACROBLOCK *x, BLOCK_SIZE_TYPE bsize,
                                int shift, int64_t *sse) {
  int64_t sum = 0, this_sse;
  int plane;

  *sse = 0;
  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
    struct macroblockd_plane *p = &x->e_mbd.plane[plane];
754
755
    const int bwl = plane_block_width_log2by4(bsize, p);
    const int bhl = plane_block_height_log2by4(bsize, p);
Deb Mukherjee's avatar
Deb Mukherjee committed
756
    sum += vp9_block_error(x->plane[plane].coeff, x->e_mbd.plane[plane].dqcoeff,
757
                           16 << (bwl + bhl), &this_sse);
Deb Mukherjee's avatar
Deb Mukherjee committed
758
759
760
761
762
763
764
765
766
767
768
769
770
    *sse += this_sse;
  }
  *sse >>= shift;
  return sum >> shift;
}

static void block_yrd_txfm(int plane, int block, BLOCK_SIZE_TYPE bsize,
                           int ss_txfrm_size, void *arg) {
  struct rdcost_block_args *args = arg;
  MACROBLOCK *const x = args->x;
  MACROBLOCKD *const xd = &x->e_mbd;
  struct encode_b_args encode_args = {args->cm, x, NULL};

771
772
773
774
775
776
777
778
779
780
  if (args->skip)
    return;
  if (RDCOST(x->rdmult, x->rddiv, args->rate, args->dist) > args->best_rd) {
    args->skip = 1;
    args->rate = INT_MAX;
    args->dist = INT64_MAX;
    args->sse  = INT64_MAX;
    return;
  }

Deb Mukherjee's avatar
Deb Mukherjee committed
781
782
783
784
785
786
787
788
789
790
791
792
  if (xd->mode_info_context->mbmi.ref_frame[0] == INTRA_FRAME)
    encode_block_intra(plane, block, bsize, ss_txfrm_size, &encode_args);
  else
    xform_quant(plane, block, bsize, ss_txfrm_size, &encode_args);

  dist_block(plane, block, bsize, ss_txfrm_size, args);
  rate_block(plane, block, bsize, ss_txfrm_size, args);
}

static void super_block_yrd_for_txfm(VP9_COMMON *const cm, MACROBLOCK *x,
                                     int *rate, int64_t *distortion,
                                     int *skippable, int64_t *sse,
793
                                     int64_t ref_best_rd,
Deb Mukherjee's avatar
Deb Mukherjee committed
794
795
796
797
798
799
800
                                     BLOCK_SIZE_TYPE bsize, TX_SIZE tx_size) {
  MACROBLOCKD *const xd = &x->e_mbd;
  struct macroblockd_plane *const pd = &xd->plane[0];
  const int bwl = b_width_log2(bsize) - xd->plane[0].subsampling_x;
  const int bhl = b_height_log2(bsize) - xd->plane[0].subsampling_y;
  const int bw = 1 << bwl, bh = 1 << bhl;
  struct rdcost_block_args args = { cm, x, { 0 }, { 0 }, tx_size, bw, bh,
801
                                    0, 0, 0, ref_best_rd, 0 };
Deb Mukherjee's avatar
Deb Mukherjee committed
802
803
804
805
806
807
808
809
  xd->mode_info_context->mbmi.txfm_size = tx_size;
  vpx_memcpy(&args.t_above, pd->above_context, sizeof(ENTROPY_CONTEXT) * bw);
  vpx_memcpy(&args.t_left, pd->left_context, sizeof(ENTROPY_CONTEXT) * bh);

  foreach_transformed_block_in_plane(xd, bsize, 0, block_yrd_txfm, &args);
  *distortion = args.dist;
  *rate       = args.rate;
  *sse        = args.sse;
810
  *skippable  = vp9_sby_is_skippable(xd, bsize) && (!args.skip);
Deb Mukherjee's avatar
Deb Mukherjee committed
811
812
813
814
815
}

static void choose_largest_txfm_size(VP9_COMP *cpi, MACROBLOCK *x,
                                     int *rate, int64_t *distortion,
                                     int *skip, int64_t *sse,
816
                                     int64_t ref_best_rd,
Deb Mukherjee's avatar
Deb Mukherjee committed
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
                                     BLOCK_SIZE_TYPE bs) {
  const TX_SIZE max_txfm_size = TX_32X32
      - (bs < BLOCK_SIZE_SB32X32) - (bs < BLOCK_SIZE_MB16X16);
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
  if (max_txfm_size == TX_32X32 &&
      (cm->txfm_mode == ALLOW_32X32 ||
       cm->txfm_mode == TX_MODE_SELECT)) {
    mbmi->txfm_size = TX_32X32;
  } else if (max_txfm_size >= TX_16X16 &&
             (cm->txfm_mode == ALLOW_16X16 ||
              cm->txfm_mode == ALLOW_32X32 ||
              cm->txfm_mode == TX_MODE_SELECT)) {
    mbmi->txfm_size = TX_16X16;
  } else if (cm->txfm_mode != ONLY_4X4) {
    mbmi->txfm_size = TX_8X8;
  } else {
    mbmi->txfm_size = TX_4X4;
  }
  super_block_yrd_for_txfm(cm, x, rate, distortion, skip,
838
                           &sse[mbmi->txfm_size], ref_best_rd, bs,
Deb Mukherjee's avatar
Deb Mukherjee committed
839
840
841
842
                           mbmi->txfm_size);
  cpi->txfm_stepdown_count[0]++;
}

843
static void choose_txfm_size_from_rd(VP9_COMP *cpi, MACROBLOCK *x,
844
                                     int (*r)[2], int *rate,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
845
                                     int64_t *d, int64_t *distortion,
846
847
                                     int *s, int *skip,
                                     int64_t txfm_cache[NB_TXFM_MODES],
Deb Mukherjee's avatar
Deb Mukherjee committed
848
849
850
                                     BLOCK_SIZE_TYPE bs) {
  const TX_SIZE max_txfm_size = TX_32X32
      - (bs < BLOCK_SIZE_SB32X32) - (bs < BLOCK_SIZE_MB16X16);
851
852
853
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
854
  vp9_prob skip_prob = vp9_get_pred_prob_mbskip(cm, xd);
855
856
  int64_t rd[TX_SIZE_MAX_SB][2];
  int n, m;
857
  int s0, s1;
858

859
  const vp9_prob *tx_probs = vp9_get_pred_probs_tx_size(cm, xd);
860

861
862
  for (n = TX_4X4; n <= max_txfm_size; n++) {
    r[n][1] = r[n][0];
863
864
    if (r[n][0] == INT_MAX)
      continue;
865
866
    for (m = 0; m <= n - (n == max_txfm_size); m++) {
      if (m == n)
867
        r[n][1] += vp9_cost_zero(tx_probs[m]);
868
      else
869
        r[n][1] += vp9_cost_one(tx_probs[m]);
870
871
    }
  }
872

873
874
875
  assert(skip_prob > 0);
  s0 = vp9_cost_bit(skip_prob, 0);
  s1 = vp9_cost_bit(skip_prob, 1);
876

877
  for (n = TX_4X4; n <= max_txfm_size; n++) {
878
879
880
881
    if (d[n] == INT64_MAX) {
      rd[n][0] = rd[n][1] = INT64_MAX;
      continue;
    }
882
883
884
885
886
    if (s[n]) {
      rd[n][0] = rd[n][1] = RDCOST(x->rdmult, x->rddiv, s1, d[n]);
    } else {
      rd[n][0] = RDCOST(x->rdmult, x->rddiv, r[n][0] + s0, d[n]);
      rd[n][1] = RDCOST(x->rdmult, x->rddiv, r[n][1] + s0, d[n]);
887
888
889
    }
  }

890
891
892
893
894
895
  if (max_txfm_size == TX_32X32 &&
      (cm->txfm_mode == ALLOW_32X32 ||
       (cm->txfm_mode == TX_MODE_SELECT &&
        rd[TX_32X32][1] < rd[TX_16X16][1] && rd[TX_32X32][1] < rd[TX_8X8][1] &&
        rd[TX_32X32][1] < rd[TX_4X4][1]))) {
    mbmi->txfm_size = TX_32X32;
896
897
898
899
900
901
  } else if (max_txfm_size >= TX_16X16 &&
             (cm->txfm_mode == ALLOW_16X16 ||
              cm->txfm_mode == ALLOW_32X32 ||
              (cm->txfm_mode == TX_MODE_SELECT &&
               rd[TX_16X16][1] < rd[TX_8X8][1] &&
               rd[TX_16X16][1] < rd[TX_4X4][1]))) {
902
    mbmi->txfm_size = TX_16X16;
903
  } else if (cm->txfm_mode == ALLOW_8X8 ||
904
905
             cm->txfm_mode == ALLOW_16X16 ||
             cm->txfm_mode == ALLOW_32X32 ||
906
           (cm->txfm_mode == TX_MODE_SELECT && rd[TX_8X8][1] < rd[TX_4X4][1])) {
907
908
909
910
911
    mbmi->txfm_size = TX_8X8;
  } else {
    mbmi->txfm_size = TX_4X4;
  }

912
  *distortion = d[mbmi->txfm_size];
913
  *rate       = r[mbmi->txfm_size][cm->txfm_mode == TX_MODE_SELECT];
914
915
  *skip       = s[mbmi->txfm_size];

916
917
  txfm_cache[ONLY_4X4] = rd[TX_4X4][0];
  txfm_cache[ALLOW_8X8] = rd[TX_8X8][0];
918
919
  txfm_cache[ALLOW_16X16] = rd[MIN(max_txfm_size, TX_16X16)][0];
  txfm_cache[ALLOW_32X32] = rd[MIN(max_txfm_size, TX_32X32)][0];
920
921
922
923
  if (max_txfm_size == TX_32X32 &&
      rd[TX_32X32][1] < rd[TX_16X16][1] && rd[TX_32X32][1] < rd[TX_8X8][1] &&
      rd[TX_32X32][1] < rd[TX_4X4][1])
    txfm_cache[TX_MODE_SELECT] = rd[TX_32X32][1];
924
925
  else if (max_txfm_size >= TX_16X16 &&
           rd[TX_16X16][1] < rd[TX_8X8][1] && rd[TX_16X16][1] < rd[TX_4X4][1])
926
    txfm_cache[TX_MODE_SELECT] = rd[TX_16X16][1];
927
  else
928
929
    txfm_cache[TX_MODE_SELECT] = rd[TX_4X4][1] < rd[TX_8X8][1] ?
                                 rd[TX_4X4][1] : rd[TX_8X8][1];
930

Deb Mukherjee's avatar
Deb Mukherjee committed
931
932
933
934
935
936
937
938
939
940
941
942
943
  if (max_txfm_size == TX_32X32 &&
      rd[TX_32X32][1] < rd[TX_16X16][1] &&
      rd[TX_32X32][1] < rd[TX_8X8][1] &&
      rd[TX_32X32][1] < rd[TX_4X4][1]) {
    cpi->txfm_stepdown_count[0]++;
  } else if (max_txfm_size >= TX_16X16 &&
             rd[TX_16X16][1] < rd[TX_8X8][1] &&
             rd[TX_16X16][1] < rd[TX_4X4][1]) {
    cpi->txfm_stepdown_count[max_txfm_size - TX_16X16]++;
  } else if (rd[TX_8X8][1] < rd[TX_4X4][1]) {
    cpi->txfm_stepdown_count[max_txfm_size - TX_8X8]++;
  } else {
    cpi->txfm_stepdown_count[max_txfm_size - TX_4X4]++;
944
  }
Deb Mukherjee's avatar
Deb Mukherjee committed
945
}
946

Deb Mukherjee's avatar
Deb Mukherjee committed
947
948
949
950
static void choose_txfm_size_from_modelrd(VP9_COMP *cpi, MACROBLOCK *x,
                                          int (*r)[2], int *rate,
                                          int64_t *d, int64_t *distortion,
                                          int *s, int *skip, int64_t *sse,
951
                                          int64_t ref_best_rd,
Deb Mukherjee's avatar
Deb Mukherjee committed
952
953
954
955
956
957
958
                                          BLOCK_SIZE_TYPE bs,
                                          int *model_used) {
  const TX_SIZE max_txfm_size = TX_32X32
      - (bs < BLOCK_SIZE_SB32X32) - (bs < BLOCK_SIZE_MB16X16);
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
959
  vp9_prob skip_prob = vp9_get_pred_prob_mbskip(cm, xd);
Deb Mukherjee's avatar
Deb Mukherjee committed
960
961
962
963
964
  int64_t rd[TX_SIZE_MAX_SB][2];
  int n, m;
  int s0, s1;
  double scale_rd[TX_SIZE_MAX_SB] = {1.73, 1.44, 1.20, 1.00};
  // double scale_r[TX_SIZE_MAX_SB] = {2.82, 2.00, 1.41, 1.00};
965

966
  const vp9_prob *tx_probs = vp9_get_pred_probs_tx_size(cm, xd);
967

Deb Mukherjee's avatar
Deb Mukherjee committed
968
969
  // for (n = TX_4X4; n <= max_txfm_size; n++)
  //   r[n][0] = (r[n][0] * scale_r[n]);
970

Deb Mukherjee's avatar
Deb Mukherjee committed
971
972
973
974
975
976
977
978
  for (n = TX_4X4; n <= max_txfm_size; n++) {
    r[n][1] = r[n][0];
    for (m = 0; m <= n - (n == max_txfm_size); m++) {
      if (m == n)
        r[n][1] += vp9_cost_zero(tx_probs[m]);
      else
        r[n][1] += vp9_cost_one(tx_probs[m]);
    }
979
  }
980

Deb Mukherjee's avatar
Deb Mukherjee committed
981
982
983
  assert(skip_prob > 0);
  s0 = vp9_cost_bit(skip_prob, 0);
  s1 = vp9_cost_bit(skip_prob, 1);
984

Deb Mukherjee's avatar
Deb Mukherjee committed
985
986
987
988
989
990
991
992
993
994
995
996
  for (n = TX_4X4; n <= max_txfm_size; n++) {
    if (s[n]) {
      rd[n][0] = rd[n][1] = RDCOST(x->rdmult, x->rddiv, s1, d[n]);
    } else {
      rd[n][0] = RDCOST(x->rdmult, x->rddiv, r[n][0] + s0, d[n]);
      rd[n][1] = RDCOST(x->rdmult, x->rddiv, r[n][1] + s0, d[n]);
    }
  }
  for (n = TX_4X4; n <= max_txfm_size; n++) {
    rd[n][0] = (scale_rd[n] * rd[n][0]);
    rd[n][1] = (scale_rd[n] * rd[n][1]);
  }
997

Deb Mukherjee's avatar
Deb Mukherjee committed
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
  if (max_txfm_size == TX_32X32 &&
      (cm->txfm_mode == ALLOW_32X32 ||
       (cm->txfm_mode == TX_MODE_SELECT &&
        rd[TX_32X32][1] <= rd[TX_16X16][1] &&
        rd[TX_32X32][1] <= rd[TX_8X8][1] &&
        rd[TX_32X32][1] <= rd[TX_4X4][1]))) {
    mbmi->txfm_size = TX_32X32;
  } else if (max_txfm_size >= TX_16X16 &&
             (cm->txfm_mode == ALLOW_16X16 ||
              cm->txfm_mode == ALLOW_32X32 ||
              (cm->txfm_mode == TX_MODE_SELECT &&
               rd[TX_16X16][1] <= rd[TX_8X8][1] &&
               rd[TX_16X16][1] <= rd[TX_4X4][1]))) {
    mbmi->txfm_size = TX_16X16;
  } else if (cm->txfm_mode == ALLOW_8X8 ||
             cm->txfm_mode == ALLOW_16X16 ||
             cm->txfm_mode == ALLOW_32X32 ||
           (cm->txfm_mode == TX_MODE_SELECT &&
            rd[TX_8X8][1] <= rd[TX_4X4][1])) {
    mbmi->txfm_size = TX_8X8;
  } else {
    mbmi->txfm_size = TX_4X4;
  }
1021

Deb Mukherjee's avatar
Deb Mukherjee committed
1022
1023
1024
1025
  if (model_used[mbmi->txfm_size]) {
    // Actually encode using the chosen mode if a model was used, but do not
    // update the r, d costs
    super_block_yrd_for_txfm(cm, x, rate, distortion, skip,
1026
                             &sse[mbmi->txfm_size], ref_best_rd,
1027
                             bs, mbmi->txfm_size);