vp9_encodeframe.c 129 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
 */

Dmitry Kovalev's avatar
Dmitry Kovalev committed
11
12
13
14
#include <limits.h>
#include <math.h>
#include <stdio.h>

Jim Bankoski's avatar
Jim Bankoski committed
15
#include "./vp9_rtcd.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
16
17
18
19
#include "./vpx_config.h"

#include "vpx_ports/vpx_timer.h"

20
#include "vp9/common/vp9_common.h"
Yaowu Xu's avatar
Yaowu Xu committed
21
#include "vp9/common/vp9_entropy.h"
22
#include "vp9/common/vp9_entropymode.h"
23
#include "vp9/common/vp9_idct.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
24
25
26
#include "vp9/common/vp9_mvref_common.h"
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_quant_common.h"
27
#include "vp9/common/vp9_reconintra.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
28
#include "vp9/common/vp9_reconinter.h"
29
#include "vp9/common/vp9_seg_common.h"
30
#include "vp9/common/vp9_systemdependent.h"
31
#include "vp9/common/vp9_tile_common.h"
32

33
#include "vp9/encoder/vp9_aq_complexity.h"
Marco Paniconi's avatar
Marco Paniconi committed
34
35
#include "vp9/encoder/vp9_aq_cyclicrefresh.h"
#include "vp9/encoder/vp9_aq_variance.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
36
37
38
#include "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
39
#include "vp9/encoder/vp9_extend.h"
40
#include "vp9/encoder/vp9_pickmode.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
41
42
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_segmentation.h"
43
#include "vp9/encoder/vp9_tokenize.h"
44

45
46
47
48
49
50
#define GF_ZEROMV_ZBIN_BOOST 0
#define LF_ZEROMV_ZBIN_BOOST 0
#define MV_ZBIN_BOOST        0
#define SPLIT_MV_ZBIN_BOOST  0
#define INTRA_ZBIN_BOOST     0

51
static INLINE uint8_t *get_sb_index(MACROBLOCK *x, BLOCK_SIZE subsize) {
52
53
54
55
56
  switch (subsize) {
    case BLOCK_64X64:
    case BLOCK_64X32:
    case BLOCK_32X64:
    case BLOCK_32X32:
57
      return &x->sb_index;
58
59
60
    case BLOCK_32X16:
    case BLOCK_16X32:
    case BLOCK_16X16:
61
      return &x->mb_index;
62
63
64
    case BLOCK_16X8:
    case BLOCK_8X16:
    case BLOCK_8X8:
65
      return &x->b_index;
66
67
68
    case BLOCK_8X4:
    case BLOCK_4X8:
    case BLOCK_4X4:
69
      return &x->ab_index;
70
71
72
73
74
75
    default:
      assert(0);
      return NULL;
  }
}

Jim Bankoski's avatar
Jim Bankoski committed
76
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
77
                              int mi_row, int mi_col, BLOCK_SIZE bsize);
78

79
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
80

81
82
83
84
// activity_avg must be positive, or flat regions could get a zero weight
//  (infinite lambda), which confounds analysis.
// This also avoids the need for divide by zero checks in
//  vp9_activity_masking().
85
#define ACTIVITY_AVG_MIN 64
86

87
// Motion vector component magnitude threshold for defining fast motion.
88
#define FAST_MOTION_MV_THRESH 24
89

90
91
92
93
// This is used as a reference when computing the source variance for the
//  purposes of activity masking.
// Eventually this should be replaced by custom no-reference routines,
//  which will be faster.
94
95
96
97
98
99
100
101
102
103
104
static const uint8_t VP9_VAR_OFFS[64] = {
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128
};

105
static unsigned int get_sby_perpixel_variance(VP9_COMP *cpi,
106
                                              const struct buf_2d *ref,
107
                                              BLOCK_SIZE bs) {
108
109
110
  unsigned int sse;
  const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
                                              VP9_VAR_OFFS, 0, &sse);
111
  return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
112
113
}

114
static unsigned int get_sby_perpixel_diff_variance(VP9_COMP *cpi,
115
116
                                                   const struct buf_2d *ref,
                                                   int mi_row, int mi_col,
117
                                                   BLOCK_SIZE bs) {
118
119
120
121
122
123
  const YV12_BUFFER_CONFIG *last = get_ref_frame_buffer(cpi, LAST_FRAME);
  const uint8_t* last_y = &last->y_buffer[mi_row * MI_SIZE * last->y_stride +
                                              mi_col * MI_SIZE];
  unsigned int sse;
  const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
                                              last_y, last->y_stride, &sse);
124
125
126
127
128
129
  return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
}

static BLOCK_SIZE get_rd_var_based_fixed_partition(VP9_COMP *cpi,
                                                   int mi_row,
                                                   int mi_col) {
130
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
131
132
133
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
  if (var < 8)
134
    return BLOCK_64X64;
135
  else if (var < 128)
136
    return BLOCK_32X32;
137
138
139
140
  else if (var < 2048)
    return BLOCK_16X16;
  else
    return BLOCK_8X8;
141
142
}

143
144
145
static BLOCK_SIZE get_nonrd_var_based_fixed_partition(VP9_COMP *cpi,
                                                      int mi_row,
                                                      int mi_col) {
146
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
147
148
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
149
  if (var < 4)
150
    return BLOCK_64X64;
151
  else if (var < 10)
152
153
    return BLOCK_32X32;
  else
154
    return BLOCK_16X16;
155
156
}

157
158
// Lighter version of set_offsets that only sets the mode info
// pointers.
159
static INLINE void set_modeinfo_offsets(VP9_COMMON *const cm,
160
161
162
                                        MACROBLOCKD *const xd,
                                        int mi_row,
                                        int mi_col) {
163
164
165
  const int idx_str = xd->mi_stride * mi_row + mi_col;
  xd->mi = cm->mi_grid_visible + idx_str;
  xd->mi[0] = cm->mi + idx_str;
166
167
}

Alex Converse's avatar
Alex Converse committed
168
static int is_block_in_mb_map(const VP9_COMP *cpi, int mi_row, int mi_col,
169
                              BLOCK_SIZE bsize) {
Alex Converse's avatar
Alex Converse committed
170
  const VP9_COMMON *const cm = &cpi->common;
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
  const int mb_rows = cm->mb_rows;
  const int mb_cols = cm->mb_cols;
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
  const int mb_width = num_8x8_blocks_wide_lookup[bsize] >> 1;
  const int mb_height = num_8x8_blocks_high_lookup[bsize] >> 1;
  int r, c;
  if (bsize <= BLOCK_16X16) {
    return cpi->active_map[mb_row * mb_cols + mb_col];
  }
  for (r = 0; r < mb_height; ++r) {
    for (c = 0; c < mb_width; ++c) {
      int row = mb_row + r;
      int col = mb_col + c;
      if (row >= mb_rows || col >= mb_cols)
        continue;
      if (cpi->active_map[row * mb_cols + col])
        return 1;
    }
  }
  return 0;
}

Alex Converse's avatar
Alex Converse committed
194
195
196
197
198
199
200
201
202
203
static int check_active_map(const VP9_COMP *cpi, const MACROBLOCK *x,
                            int mi_row, int mi_col,
                            BLOCK_SIZE bsize) {
  if (cpi->active_map_enabled && !x->e_mbd.lossless) {
    return is_block_in_mb_map(cpi, mi_row, mi_col, bsize);
  } else {
    return 1;
  }
}

204
205
206
207
208
209
210
211
212
213
214
215
216
static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile,
                        int mi_row, int mi_col, BLOCK_SIZE bsize) {
  MACROBLOCK *const x = &cpi->mb;
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *mbmi;
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
  const int idx_map = mb_row * cm->mb_cols + mb_col;
  const struct segmentation *const seg = &cm->seg;

217
  set_skip_context(xd, mi_row, mi_col);
218
219
220

  // Activity map pointer
  x->mb_activity_ptr = &cpi->mb_activity_map[idx_map];
Alex Converse's avatar
Alex Converse committed
221
  x->in_active_map = check_active_map(cpi, x, mi_row, mi_col, bsize);
222
223
224

  set_modeinfo_offsets(cm, xd, mi_row, mi_col);

225
  mbmi = &xd->mi[0]->mbmi;
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264

  // Set up destination pointers.
  vp9_setup_dst_planes(xd, get_frame_new_buffer(cm), mi_row, mi_col);

  // Set up limit values for MV components.
  // Mv beyond the range do not produce new/different prediction block.
  x->mv_row_min = -(((mi_row + mi_height) * MI_SIZE) + VP9_INTERP_EXTEND);
  x->mv_col_min = -(((mi_col + mi_width) * MI_SIZE) + VP9_INTERP_EXTEND);
  x->mv_row_max = (cm->mi_rows - mi_row) * MI_SIZE + VP9_INTERP_EXTEND;
  x->mv_col_max = (cm->mi_cols - mi_col) * MI_SIZE + VP9_INTERP_EXTEND;

  // Set up distance of MB to edge of frame in 1/8th pel units.
  assert(!(mi_col & (mi_width - 1)) && !(mi_row & (mi_height - 1)));
  set_mi_row_col(xd, tile, mi_row, mi_height, mi_col, mi_width,
                 cm->mi_rows, cm->mi_cols);

  // Set up source buffers.
  vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);

  // R/D setup.
  x->rddiv = cpi->RDDIV;
  x->rdmult = cpi->RDMULT;

  // Setup segment ID.
  if (seg->enabled) {
    if (cpi->oxcf.aq_mode != VARIANCE_AQ) {
      const uint8_t *const map = seg->update_map ? cpi->segmentation_map
                                                 : cm->last_frame_seg_map;
      mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
    }
    vp9_init_plane_quantizers(cpi, x);

    x->encode_breakout = cpi->segment_encode_breakout[mbmi->segment_id];
  } else {
    mbmi->segment_id = 0;
    x->encode_breakout = cpi->encode_breakout;
  }
}

265
static void duplicate_mode_info_in_sb(VP9_COMMON * const cm,
266
267
268
269
270
271
272
273
274
275
                                     MACROBLOCKD *const xd,
                                     int mi_row,
                                     int mi_col,
                                     BLOCK_SIZE bsize) {
  const int block_width = num_8x8_blocks_wide_lookup[bsize];
  const int block_height = num_8x8_blocks_high_lookup[bsize];
  int i, j;
  for (j = 0; j < block_height; ++j)
    for (i = 0; i < block_width; ++i) {
      if (mi_row + j < cm->mi_rows && mi_col + i < cm->mi_cols)
276
        xd->mi[j * xd->mi_stride + i] = xd->mi[0];
277
278
279
280
281
282
283
284
285
286
    }
}

static void set_block_size(VP9_COMP * const cpi,
                           const TileInfo *const tile,
                           int mi_row, int mi_col,
                           BLOCK_SIZE bsize) {
  if (cpi->common.mi_cols > mi_col && cpi->common.mi_rows > mi_row) {
    MACROBLOCKD *const xd = &cpi->mb.e_mbd;
    set_modeinfo_offsets(&cpi->common, xd, mi_row, mi_col);
287
    xd->mi[0]->mbmi.sb_type = bsize;
288
    duplicate_mode_info_in_sb(&cpi->common, xd, mi_row, mi_col, bsize);
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
  }
}

typedef struct {
  int64_t sum_square_error;
  int64_t sum_error;
  int count;
  int variance;
} var;

typedef struct {
  var none;
  var horz[2];
  var vert[2];
} partition_variance;

typedef struct {
  partition_variance part_variances;
  var split[4];
} v8x8;

typedef struct {
  partition_variance part_variances;
  v8x8 split[4];
} v16x16;

typedef struct {
  partition_variance part_variances;
  v16x16 split[4];
} v32x32;

typedef struct {
  partition_variance part_variances;
  v32x32 split[4];
} v64x64;

typedef struct {
  partition_variance *part_variances;
  var *split[4];
} variance_node;

typedef enum {
  V16X16,
  V32X32,
  V64X64,
} TREE_LEVEL;

static void tree_to_node(void *data, BLOCK_SIZE bsize, variance_node *node) {
  int i;
  switch (bsize) {
    case BLOCK_64X64: {
      v64x64 *vt = (v64x64 *) data;
      node->part_variances = &vt->part_variances;
      for (i = 0; i < 4; i++)
        node->split[i] = &vt->split[i].part_variances.none;
      break;
    }
    case BLOCK_32X32: {
      v32x32 *vt = (v32x32 *) data;
      node->part_variances = &vt->part_variances;
      for (i = 0; i < 4; i++)
        node->split[i] = &vt->split[i].part_variances.none;
      break;
    }
    case BLOCK_16X16: {
      v16x16 *vt = (v16x16 *) data;
      node->part_variances = &vt->part_variances;
      for (i = 0; i < 4; i++)
        node->split[i] = &vt->split[i].part_variances.none;
      break;
    }
    case BLOCK_8X8: {
      v8x8 *vt = (v8x8 *) data;
      node->part_variances = &vt->part_variances;
      for (i = 0; i < 4; i++)
        node->split[i] = &vt->split[i];
      break;
    }
    default: {
      assert(0);
    }
  }
}

// Set variance values given sum square error, sum error, count.
static void fill_variance(int64_t s2, int64_t s, int c, var *v) {
  v->sum_square_error = s2;
  v->sum_error = s;
  v->count = c;
  if (c > 0)
    v->variance = (int)(256 *
                        (v->sum_square_error - v->sum_error * v->sum_error /
                         v->count) / v->count);
  else
    v->variance = 0;
}

void sum_2_variances(const var *a, const var *b, var *r) {
  fill_variance(a->sum_square_error + b->sum_square_error,
                a->sum_error + b->sum_error, a->count + b->count, r);
}

static void fill_variance_tree(void *data, BLOCK_SIZE bsize) {
  variance_node node;
  tree_to_node(data, bsize, &node);
  sum_2_variances(node.split[0], node.split[1], &node.part_variances->horz[0]);
  sum_2_variances(node.split[2], node.split[3], &node.part_variances->horz[1]);
  sum_2_variances(node.split[0], node.split[2], &node.part_variances->vert[0]);
  sum_2_variances(node.split[1], node.split[3], &node.part_variances->vert[1]);
  sum_2_variances(&node.part_variances->vert[0], &node.part_variances->vert[1],
                  &node.part_variances->none);
}

static int set_vt_partitioning(VP9_COMP *cpi,
                               void *data,
                               const TileInfo *const tile,
                               BLOCK_SIZE bsize,
                               int mi_row,
                               int mi_col,
                               int mi_size) {
  VP9_COMMON * const cm = &cpi->common;
  variance_node vt;
  const int block_width = num_8x8_blocks_wide_lookup[bsize];
  const int block_height = num_8x8_blocks_high_lookup[bsize];
  // TODO(debargha): Choose this more intelligently.
  const int64_t threshold_multiplier = 25;
  int64_t threshold = threshold_multiplier * cpi->common.base_qindex;
  assert(block_height == block_width);

  tree_to_node(data, bsize, &vt);

  // Split none is available only if we have more than half a block size
  // in width and height inside the visible image.
  if (mi_col + block_width / 2 < cm->mi_cols &&
      mi_row + block_height / 2 < cm->mi_rows &&
      vt.part_variances->none.variance < threshold) {
    set_block_size(cpi, tile, mi_row, mi_col, bsize);
    return 1;
  }

  // Vertical split is available on all but the bottom border.
  if (mi_row + block_height / 2 < cm->mi_rows &&
      vt.part_variances->vert[0].variance < threshold &&
      vt.part_variances->vert[1].variance < threshold) {
    BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_VERT);
    set_block_size(cpi, tile, mi_row, mi_col, subsize);
    set_block_size(cpi, tile, mi_row, mi_col + block_width / 2, subsize);
    return 1;
  }

  // Horizontal split is available on all but the right border.
  if (mi_col + block_width / 2 < cm->mi_cols &&
      vt.part_variances->horz[0].variance < threshold &&
      vt.part_variances->horz[1].variance < threshold) {
    BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_HORZ);
    set_block_size(cpi, tile, mi_row, mi_col, subsize);
    set_block_size(cpi, tile, mi_row + block_height / 2, mi_col, subsize);
    return 1;
  }
  return 0;
}

// TODO(debargha): Fix this function and make it work as expected.
static void choose_partitioning(VP9_COMP *cpi,
                                const TileInfo *const tile,
                                int mi_row, int mi_col) {
  VP9_COMMON * const cm = &cpi->common;
  MACROBLOCK *x = &cpi->mb;
  MACROBLOCKD *xd = &cpi->mb.e_mbd;

  int i, j, k;
  v64x64 vt;
  uint8_t *s;
  const uint8_t *d;
  int sp;
  int dp;
  int pixels_wide = 64, pixels_high = 64;
  int_mv nearest_mv, near_mv;
  const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME);
  const struct scale_factors *const sf = &cm->frame_refs[LAST_FRAME - 1].sf;

  vp9_zero(vt);
  set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);

  if (xd->mb_to_right_edge < 0)
    pixels_wide += (xd->mb_to_right_edge >> 3);
  if (xd->mb_to_bottom_edge < 0)
    pixels_high += (xd->mb_to_bottom_edge >> 3);

  s = x->plane[0].src.buf;
  sp = x->plane[0].src.stride;

  if (cm->frame_type != KEY_FRAME) {
    vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, sf);

484
485
    xd->mi[0]->mbmi.ref_frame[0] = LAST_FRAME;
    xd->mi[0]->mbmi.sb_type = BLOCK_64X64;
486
    vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv,
487
                          xd->mi[0]->mbmi.ref_mvs[LAST_FRAME],
488
489
                          &nearest_mv, &near_mv);

490
    xd->mi[0]->mbmi.mv[0] = nearest_mv;
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
    vp9_build_inter_predictors_sby(xd, mi_row, mi_col, BLOCK_64X64);

    d = xd->plane[0].dst.buf;
    dp = xd->plane[0].dst.stride;
  } else {
    d = VP9_VAR_OFFS;
    dp = 0;
  }

  // Fill in the entire tree of 8x8 variances for splits.
  for (i = 0; i < 4; i++) {
    const int x32_idx = ((i & 1) << 5);
    const int y32_idx = ((i >> 1) << 5);
    for (j = 0; j < 4; j++) {
      const int x16_idx = x32_idx + ((j & 1) << 4);
      const int y16_idx = y32_idx + ((j >> 1) << 4);
      v16x16 *vst = &vt.split[i].split[j];
      for (k = 0; k < 4; k++) {
        int x_idx = x16_idx + ((k & 1) << 3);
        int y_idx = y16_idx + ((k >> 1) << 3);
        unsigned int sse = 0;
        int sum = 0;
        if (x_idx < pixels_wide && y_idx < pixels_high)
          vp9_get_sse_sum_8x8(s + y_idx * sp + x_idx, sp,
                              d + y_idx * dp + x_idx, dp, &sse, &sum);
        fill_variance(sse, sum, 64, &vst->split[k].part_variances.none);
      }
    }
  }
  // Fill the rest of the variance tree by summing split partition values.
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      fill_variance_tree(&vt.split[i].split[j], BLOCK_16X16);
    }
    fill_variance_tree(&vt.split[i], BLOCK_32X32);
  }
  fill_variance_tree(&vt, BLOCK_64X64);

  // Now go through the entire structure,  splitting every block size until
  // we get to one that's got a variance lower than our threshold,  or we
  // hit 8x8.
  if (!set_vt_partitioning(cpi, &vt, tile, BLOCK_64X64,
                           mi_row, mi_col, 8)) {
    for (i = 0; i < 4; ++i) {
      const int x32_idx = ((i & 1) << 2);
      const int y32_idx = ((i >> 1) << 2);
      if (!set_vt_partitioning(cpi, &vt.split[i], tile, BLOCK_32X32,
                               (mi_row + y32_idx), (mi_col + x32_idx), 4)) {
        for (j = 0; j < 4; ++j) {
          const int x16_idx = ((j & 1) << 1);
          const int y16_idx = ((j >> 1) << 1);
          // NOTE: This is a temporary hack to disable 8x8 partitions,
          // since it works really bad - possibly due to a bug
#define DISABLE_8X8_VAR_BASED_PARTITION
#ifdef DISABLE_8X8_VAR_BASED_PARTITION
          if (mi_row + y32_idx + y16_idx + 1 < cm->mi_rows &&
              mi_row + x32_idx + x16_idx + 1 < cm->mi_cols) {
            set_block_size(cpi, tile,
                           (mi_row + y32_idx + y16_idx),
                           (mi_col + x32_idx + x16_idx),
                           BLOCK_16X16);
          } else {
            for (k = 0; k < 4; ++k) {
              const int x8_idx = (k & 1);
              const int y8_idx = (k >> 1);
              set_block_size(cpi, tile,
                             (mi_row + y32_idx + y16_idx + y8_idx),
                             (mi_col + x32_idx + x16_idx + x8_idx),
                             BLOCK_8X8);
            }
          }
#else
          if (!set_vt_partitioning(cpi, &vt.split[i].split[j], tile,
                                   BLOCK_16X16,
                                   (mi_row + y32_idx + y16_idx),
                                   (mi_col + x32_idx + x16_idx), 2)) {
            for (k = 0; k < 4; ++k) {
              const int x8_idx = (k & 1);
              const int y8_idx = (k >> 1);
              set_block_size(cpi, tile,
                             (mi_row + y32_idx + y16_idx + y8_idx),
                             (mi_col + x32_idx + x16_idx + x8_idx),
                             BLOCK_8X8);
            }
          }
#endif
        }
      }
    }
  }
}

583
// Original activity measure from Tim T's code.
584
static unsigned int tt_activity_measure(MACROBLOCK *x) {
John Koleszar's avatar
John Koleszar committed
585
  unsigned int sse;
586
587
588
589
590
591
592
593
594
  // TODO: This could also be done over smaller areas (8x8), but that would
  // require extensive changes elsewhere, as lambda is assumed to be fixed
  // over an entire MB in most of the code.
  // Another option is to compute four 8x8 variances, and pick a single
  // lambda using a non-linear combination (e.g., the smallest, or second
  // smallest, etc.).
  const unsigned int act = vp9_variance16x16(x->plane[0].src.buf,
                                             x->plane[0].src.stride,
                                             VP9_VAR_OFFS, 0, &sse) << 4;
595
  // If the region is flat, lower the activity some more.
596
  return act < (8 << 12) ? MIN(act, 5 << 12) : act;
597
598
}

599
// Stub for alternative experimental activity measures.
600
601
static unsigned int alt_activity_measure(MACROBLOCK *x, int use_dc_pred) {
  return vp9_encode_intra(x, use_dc_pred);
602
603
604
605
}

// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
606
#define ALT_ACT_MEASURE 1
607
static unsigned int mb_activity_measure(MACROBLOCK *x, int mb_row, int mb_col) {
John Koleszar's avatar
John Koleszar committed
608
  unsigned int mb_activity;
609

John Koleszar's avatar
John Koleszar committed
610
  if (ALT_ACT_MEASURE) {
611
    const int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
612

John Koleszar's avatar
John Koleszar committed
613
    // Or use and alternative.
614
    mb_activity = alt_activity_measure(x, use_dc_pred);
John Koleszar's avatar
John Koleszar committed
615
616
  } else {
    // Original activity measure from Tim T's code.
617
    mb_activity = tt_activity_measure(x);
John Koleszar's avatar
John Koleszar committed
618
  }
619

620
  return MAX(mb_activity, ACTIVITY_AVG_MIN);
621
622
623
}

// Calculate an "average" mb activity value for the frame
624
#define ACT_MEDIAN 0
625
static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
626
#if ACT_MEDIAN
John Koleszar's avatar
John Koleszar committed
627
628
629
630
631
632
633
634
  // Find median: Simple n^2 algorithm for experimentation
  {
    unsigned int median;
    unsigned int i, j;
    unsigned int *sortlist;
    unsigned int tmp;

    // Create a list to sort to
635
636
    CHECK_MEM_ERROR(&cpi->common, sortlist, vpx_calloc(sizeof(unsigned int),
                    cpi->common.MBs));
John Koleszar's avatar
John Koleszar committed
637
638
639

    // Copy map to sort list
    vpx_memcpy(sortlist, cpi->mb_activity_map,
Jim Bankoski's avatar
Jim Bankoski committed
640
        sizeof(unsigned int) * cpi->common.MBs);
John Koleszar's avatar
John Koleszar committed
641
642
643
644
645
646
647
648
649

    // Ripple each value down to its correct position
    for (i = 1; i < cpi->common.MBs; i ++) {
      for (j = i; j > 0; j --) {
        if (sortlist[j] < sortlist[j - 1]) {
          // Swap values
          tmp = sortlist[j - 1];
          sortlist[j - 1] = sortlist[j];
          sortlist[j] = tmp;
650
651
652
        } else {
          break;
        }
John Koleszar's avatar
John Koleszar committed
653
654
      }
    }
655

John Koleszar's avatar
John Koleszar committed
656
657
    // Even number MBs so estimate median as mean of two either side.
    median = (1 + sortlist[cpi->common.MBs >> 1] +
Jim Bankoski's avatar
Jim Bankoski committed
658
        sortlist[(cpi->common.MBs >> 1) + 1]) >> 1;
659

John Koleszar's avatar
John Koleszar committed
660
    cpi->activity_avg = median;
661

John Koleszar's avatar
John Koleszar committed
662
663
    vpx_free(sortlist);
  }
664
#else
John Koleszar's avatar
John Koleszar committed
665
  // Simple mean for now
Jim Bankoski's avatar
Jim Bankoski committed
666
  cpi->activity_avg = (unsigned int) (activity_sum / cpi->common.MBs);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
667
#endif  // ACT_MEDIAN
668

669
670
  if (cpi->activity_avg < ACTIVITY_AVG_MIN)
    cpi->activity_avg = ACTIVITY_AVG_MIN;
671

John Koleszar's avatar
John Koleszar committed
672
673
674
  // Experimental code: return fixed value normalized for several clips
  if (ALT_ACT_MEASURE)
    cpi->activity_avg = 100000;
675
676
}

677
#define USE_ACT_INDEX   0
678
#define OUTPUT_NORM_ACT_STATS   0
679
680

#if USE_ACT_INDEX
681
// Calculate an activity index for each mb
682
683
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
  VP9_COMMON *const cm = &cpi->common;
John Koleszar's avatar
John Koleszar committed
684
  int mb_row, mb_col;
685

John Koleszar's avatar
John Koleszar committed
686
687
688
  int64_t act;
  int64_t a;
  int64_t b;
689
690

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
691
692
  FILE *f = fopen("norm_act.stt", "a");
  fprintf(f, "\n%12d\n", cpi->activity_avg);
693
694
#endif

John Koleszar's avatar
John Koleszar committed
695
696
  // Reset pointers to start of activity map
  x->mb_activity_ptr = cpi->mb_activity_map;
697

John Koleszar's avatar
John Koleszar committed
698
699
700
701
702
703
  // Calculate normalized mb activity number.
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
      // Read activity from the map
      act = *(x->mb_activity_ptr);
704

John Koleszar's avatar
John Koleszar committed
705
706
707
      // Calculate a normalized activity number
      a = act + 4 * cpi->activity_avg;
      b = 4 * act + cpi->activity_avg;
708

John Koleszar's avatar
John Koleszar committed
709
      if (b >= a)
Jim Bankoski's avatar
Jim Bankoski committed
710
      *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
John Koleszar's avatar
John Koleszar committed
711
      else
Jim Bankoski's avatar
Jim Bankoski committed
712
      *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
713
714

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
715
      fprintf(f, " %6d", *(x->mb_activity_ptr));
716
#endif
John Koleszar's avatar
John Koleszar committed
717
718
719
      // Increment activity map pointers
      x->mb_activity_ptr++;
    }
720
721

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
722
    fprintf(f, "\n");
723
#endif
John Koleszar's avatar
John Koleszar committed
724
  }
725
726

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
727
  fclose(f);
728
729
#endif
}
Dmitry Kovalev's avatar
Dmitry Kovalev committed
730
#endif  // USE_ACT_INDEX
731
732
733

// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
734
static void build_activity_map(VP9_COMP *cpi) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
735
  MACROBLOCK *const x = &cpi->mb;
John Koleszar's avatar
John Koleszar committed
736
  MACROBLOCKD *xd = &x->e_mbd;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
737
  VP9_COMMON *const cm = &cpi->common;
738

739
#if ALT_ACT_MEASURE
740
  YV12_BUFFER_CONFIG *new_yv12 = get_frame_new_buffer(cm);
John Koleszar's avatar
John Koleszar committed
741
742
  int recon_yoffset;
  int recon_y_stride = new_yv12->y_stride;
743
744
#endif

John Koleszar's avatar
John Koleszar committed
745
746
747
  int mb_row, mb_col;
  unsigned int mb_activity;
  int64_t activity_sum = 0;
748

749
750
  x->mb_activity_ptr = cpi->mb_activity_map;

John Koleszar's avatar
John Koleszar committed
751
752
  // for each macroblock row in image
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
753
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
754
755
756
    // reset above block coeffs
    xd->up_available = (mb_row != 0);
    recon_yoffset = (mb_row * recon_y_stride * 16);
757
#endif
John Koleszar's avatar
John Koleszar committed
758
759
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
760
#if ALT_ACT_MEASURE
761
      xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
John Koleszar's avatar
John Koleszar committed
762
763
      xd->left_available = (mb_col != 0);
      recon_yoffset += 16;
764
#endif
765

John Koleszar's avatar
John Koleszar committed
766
      // measure activity
767
      mb_activity = mb_activity_measure(x, mb_row, mb_col);
768

John Koleszar's avatar
John Koleszar committed
769
770
      // Keep frame sum
      activity_sum += mb_activity;
771

John Koleszar's avatar
John Koleszar committed
772
773
      // Store MB level activity details.
      *x->mb_activity_ptr = mb_activity;
774

John Koleszar's avatar
John Koleszar committed
775
776
      // Increment activity map pointer
      x->mb_activity_ptr++;
777

John Koleszar's avatar
John Koleszar committed
778
      // adjust to the next column of source macroblocks
John Koleszar's avatar
John Koleszar committed
779
      x->plane[0].src.buf += 16;
John Koleszar's avatar
John Koleszar committed
780
    }
781

John Koleszar's avatar
John Koleszar committed
782
    // adjust to the next row of mbs
John Koleszar's avatar
John Koleszar committed
783
    x->plane[0].src.buf += 16 * x->plane[0].src.stride - 16 * cm->mb_cols;
John Koleszar's avatar
John Koleszar committed
784
  }
785

John Koleszar's avatar
John Koleszar committed
786
787
  // Calculate an "average" MB activity
  calc_av_activity(cpi, activity_sum);
788

789
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
790
791
  // Calculate an activity index number of each mb
  calc_activity_index(cpi, x);
792
#endif
793
794
}

795
// Macroblock activity masking
796
static void activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
797
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
798
799
800
  x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
801
#else
802
  const int64_t act = *(x->mb_activity_ptr);
803

John Koleszar's avatar
John Koleszar committed
804
  // Apply the masking to the RD multiplier.
805
806
  const int64_t a = act + (2 * cpi->activity_avg);
  const int64_t b = (2 * act) + cpi->activity_avg;
807

Jim Bankoski's avatar
Jim Bankoski committed
808
  x->rdmult = (unsigned int) (((int64_t) x->rdmult * b + (a >> 1)) / a);
John Koleszar's avatar
John Koleszar committed
809
810
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
811
#endif
812

John Koleszar's avatar
John Koleszar committed
813
814
  // Activity based Zbin adjustment
  adjust_act_zbin(cpi, x);
815
}
John Koleszar's avatar
John Koleszar committed
816

Jim Bankoski's avatar
Jim Bankoski committed
817
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
818
819
                         int mi_row, int mi_col, BLOCK_SIZE bsize,
                         int output_enabled) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
820
  int i, x_idx, y;
821
822
823
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
824
825
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
John Koleszar's avatar
John Koleszar committed
826
  MODE_INFO *mi = &ctx->mic;
827
828
  MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
  MODE_INFO *mi_addr = xd->mi[0];
829
  const struct segmentation *const seg = &cm->seg;
830

831
  const int mis = cm->mi_stride;
Jim Bankoski's avatar
Jim Bankoski committed
832
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
833
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
834
  int max_plane;
Adrian Grange's avatar
Adrian Grange committed
835

836
  assert(mi->mbmi.sb_type == bsize);
837

838
839
  *mi_addr = *mi;

Paul Wilkins's avatar
Paul Wilkins committed
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
  // If segmentation in use
  if (seg->enabled && output_enabled) {
    // For in frame complexity AQ copy the segment id from the segment map.
    if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
      const uint8_t *const map = seg->update_map ? cpi->segmentation_map
                                                 : cm->last_frame_seg_map;
      mi_addr->mbmi.segment_id =
        vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
    }
    // Else for cyclic refresh mode update the segment map, set the segment id
    // and then update the quantizer.
    else if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
      vp9_cyclic_refresh_update_segment(cpi, &xd->mi[0]->mbmi,
                                        mi_row, mi_col, bsize, 1);
      vp9_init_plane_quantizers(cpi, x);
    }
856
  }
857

858
859
  max_plane = is_inter_block(mbmi) ? MAX_MB_PLANE : 1;
  for (i = 0; i < max_plane; ++i) {
860
    p[i].coeff = ctx->coeff_pbuf[i][1];
861
    p[i].qcoeff = ctx->qcoeff_pbuf[i][1];
862
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1];
863
    p[i].eobs = ctx->eobs_pbuf[i][1];
864
865
  }

866
867
  for (i = max_plane; i < MAX_MB_PLANE; ++i) {
    p[i].coeff = ctx->coeff_pbuf[i][2];
868
    p[i].qcoeff = ctx->qcoeff_pbuf[i][2];
869
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2];
870
    p[i].eobs = ctx->eobs_pbuf[i][2];
871
872
  }

John Koleszar's avatar
John Koleszar committed
873
874
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
875
876
  for (y = 0; y < mi_height; y++)
    for (x_idx = 0; x_idx < mi_width; x_idx++)
James Zern's avatar
James Zern committed
877
      if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx
878
        && (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) {
879
        xd->mi[x_idx + y * mis] = mi_addr;
880
      }
881

882
  if (cpi->oxcf.aq_mode)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
883
    vp9_init_plane_quantizers(cpi, x);
884

885
886
  // FIXME(rbultje) I'm pretty sure this should go to the end of this block
  // (i.e. after the output_enabled)
887
888
  if (bsize < BLOCK_32X32) {
    if (bsize < BLOCK_16X16)
889
890
      ctx->tx_rd_diff[ALLOW_16X16] = ctx->tx_rd_diff[ALLOW_8X8];
    ctx->tx_rd_diff[ALLOW_32X32] = ctx->tx_rd_diff[ALLOW_16X16];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
891
  }
Adrian Grange's avatar
Adrian Grange committed
892

893
  if (is_inter_block(mbmi) && mbmi->sb_type < BLOCK_8X8) {
894
895
    mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int;
    mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int;
John Koleszar's avatar
John Koleszar committed
896
897
  }

898
  x->skip = ctx->skip;
899
  vpx_memcpy(x->zcoeff_blk[mbmi->tx_size], ctx->zcoeff_blk,
900
             sizeof(uint8_t) * ctx->num_4x4_blk);
901

Ronald S. Bultje's avatar
Ronald S. Bultje committed
902
903
904
  if (!output_enabled)
    return;

905
  if (!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
906
    for (i = 0; i < TX_MODES; i++)
907
      cpi->rd_tx_select_diff[i] += ctx->tx_rd_diff[i];
908
909
  }

910
#if CONFIG_INTERNAL_STATS
911
  if (frame_is_intra_only(cm)) {
John Koleszar's avatar
John Koleszar committed
912
    static const int kf_mode_index[] = {
913
914
915
916
      THR_DC        /*DC_PRED*/,
      THR_V_PRED    /*V_PRED*/,
      THR_H_PRED    /*H_PRED*/,
      THR_D45_PRED  /*D45_PRED*/,
John Koleszar's avatar
John Koleszar committed
917
918
919
      THR_D135_PRED /*D135_PRED*/,
      THR_D117_PRED /*D117_PRED*/,
      THR_D153_PRED /*D153_PRED*/,
Dmitry Kovalev's avatar
Dmitry Kovalev committed
920
      THR_D207_PRED /*D207_PRED*/,
921
922
      THR_D63_PRED  /*D63_PRED*/,
      THR_TM        /*TM_PRED*/,
John Koleszar's avatar
John Koleszar committed
923
    };
924
    ++cpi->mode_chosen_counts[kf_mode_index[mbmi->mode]];
John Koleszar's avatar
John Koleszar committed
925
926
  } else {
    // Note how often each mode chosen as best
927
928
929
930
    ++cpi->mode_chosen_counts[ctx->best_mode_index];
  }
#endif
  if (!frame_is_intra_only(cm)) {
931
    if (is_inter_block(mbmi)) {
932
      vp9_update_mv_count(cm, xd);
933
934
935
936
937

      if (cm->interp_filter == SWITCHABLE) {
        const int ctx = vp9_get_pred_context_switchable_interp(xd);
        ++cm->counts.switchable_interp[ctx][mbmi->interp_filter];
      }
938
    }
Adrian Grange's avatar
Adrian Grange committed
939

940
941
942
    cpi->rd_comp_pred_diff[SINGLE_REFERENCE] += ctx->single_pred_diff;
    cpi->rd_comp_pred_diff[COMPOUND_REFERENCE] += ctx->comp_pred_diff;
    cpi->rd_comp_pred_diff[REFERENCE_MODE_SELECT] += ctx->hybrid_pred_diff;
943

944
    for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
945
      cpi->rd_filter_diff[i] += ctx->best_filter_diff[i];
John Koleszar's avatar
John Koleszar committed
946
  }
Adrian Grange's avatar
Adrian Grange committed
947
948
}

Jim Bankoski's avatar
Jim Bankoski committed
949
void vp9_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src,
950
951
952
953
954
                          int mi_row, int mi_col) {
  uint8_t *const buffers[4] = {src->y_buffer, src->u_buffer, src->v_buffer,
                               src->alpha_buffer};
  const int strides[4] = {src->y_stride, src->uv_stride, src->uv_stride,
                          src->alpha_stride};
955
956
  int i;

957
958
959
  // Set current frame pointer.
  x->e_mbd.cur_buf = src;

960
961
  for (i = 0; i < MAX_MB_PLANE; i++)
    setup_pred_plane(&x->plane[i].src, buffers[i], strides[i], mi_row, mi_col,
Jim Bankoski's avatar
Jim Bankoski committed
962
                     NULL, x->e_mbd.plane[i].subsampling_x,
963
                     x->e_mbd.plane[i].subsampling_y);
John Koleszar's avatar
John Koleszar committed
964
965
}

966
967
968
969
970
static void rd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
                             int mi_row, int mi_col,
                             int *totalrate, int64_t *totaldist,
                             BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx,
                             int64_t best_rd) {
971
972
973
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
974
  MB_MODE_INFO *mbmi;
975
976
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
977
  const AQ_MODE aq_mode = cpi->oxcf.aq_mode;
978
  int i, orig_rdmult;
979
980
  double rdmult_ratio;

981
  vp9_clear_system_state();
982
  rdmult_ratio = 1.0;  // avoid uninitialized warnings
Ronald S. Bultje's avatar
Ronald S. Bultje committed
983

984
  // Use the lower precision, but faster, 32x32 fdct for mode selection.
985
  x->use_lp32x32fdct = 1;
986

987
  if (bsize < BLOCK_8X8) {
988
989
    // When ab_index = 0 all sub-blocks are handled, so for ab_index != 0
    // there is nothing to be done.
990
    if (x->ab_index != 0) {
991
992
      *totalrate = 0;
      *totaldist = 0;
993
      return;
994
    }
995
  }
996

James Zern's avatar
James Zern committed
997
  set_offsets(cpi, tile, mi_row, mi_col, bsize);
998
  mbmi = &xd->mi[0]->mbmi;
999
  mbmi->sb_type = bsize;
1000

1001
  for (i = 0; i < MAX_MB_PLANE; ++i) {
1002
    p[i].coeff = ctx->coeff_pbuf[i][0];
1003
    p[i].qcoeff = ctx->qcoeff_pbuf[i][0];
1004
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
1005
    p[i].eobs = ctx->eobs_pbuf[i][0];
1006
  }
1007
  ctx->is_coded = 0;
1008
  x->skip_recode = 0;
1009

1010
  // Set to zero to make sure we do not use the previous encoded frame stats
1011
  mbmi->skip = 0;
1012

1013
  x->source_variance = get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize);
1014

1015
1016
1017
1018
1019
  // Save rdmult before it might be changed, so it can be restored later.
  orig_rdmult = x->rdmult;
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
    activity_masking(cpi, x);

1020
  if (aq_mode == VARIANCE_AQ) {
1021
1022
    const int energy = bsize <= BLOCK_16X16 ? x->mb_energy
                                            : vp9_block_energy(cpi, x, bsize);
Paul Wilkins's avatar
Paul Wilkins committed
1023
1024
1025
    if (cm->frame_type == KEY_FRAME ||
        cpi->refresh_alt_ref_frame ||
        (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) {
1026
      mbmi->segment_id = vp9_vaq_segment_id(energy);
Paul Wilkins's avatar
Paul Wilkins committed
1027
1028
1029
    } else {
      const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
                                                    : cm->last_frame_seg_map;
1030
      mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
Paul Wilkins's avatar
Paul Wilkins committed
1031
1032
    }

1033
    rdmult_ratio = vp9_vaq_rdmult_ratio(energy);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
1034
    vp9_init_plane_quantizers(cpi, x);
1035
    vp9_clear_system_state();
1036
    x->rdmult = (