vp9_encodeframe.c 99.9 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"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
32
33
34
#include "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
35
#include "vp9/encoder/vp9_extend.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
36
#include "vp9/encoder/vp9_onyx_int.h"
37
#include "vp9/encoder/vp9_pickmode.h"
Dmitry Kovalev's avatar
Dmitry Kovalev committed
38
39
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_segmentation.h"
40
#include "vp9/encoder/vp9_tokenize.h"
41
42
#include "vp9/encoder/vp9_vaq.h"

43
static INLINE uint8_t *get_sb_index(MACROBLOCK *x, BLOCK_SIZE subsize) {
44
45
46
47
48
  switch (subsize) {
    case BLOCK_64X64:
    case BLOCK_64X32:
    case BLOCK_32X64:
    case BLOCK_32X32:
49
      return &x->sb_index;
50
51
52
    case BLOCK_32X16:
    case BLOCK_16X32:
    case BLOCK_16X16:
53
      return &x->mb_index;
54
55
56
    case BLOCK_16X8:
    case BLOCK_8X16:
    case BLOCK_8X8:
57
      return &x->b_index;
58
59
60
    case BLOCK_8X4:
    case BLOCK_4X8:
    case BLOCK_4X4:
61
      return &x->ab_index;
62
63
64
65
66
67
    default:
      assert(0);
      return NULL;
  }
}

Jim Bankoski's avatar
Jim Bankoski committed
68
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
69
                              int mi_row, int mi_col, BLOCK_SIZE bsize);
70

71
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
72

73
74
75
76
// 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().
77
#define ACTIVITY_AVG_MIN (64)
78

79
// Motion vector component magnitude threshold for defining fast motion.
80
81
#define FAST_MOTION_MV_THRESH (24)

82
83
84
85
// 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.
86
87
88
89
90
91
92
93
94
95
96
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
};

97
98
static unsigned int get_sby_perpixel_variance(VP9_COMP *cpi,
                                              MACROBLOCK *x,
99
                                              BLOCK_SIZE bs) {
100
  unsigned int var, sse;
101
  var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf, x->plane[0].src.stride,
102
                           VP9_VAR_OFFS, 0, &sse);
103
  return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
104
105
}

106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
static unsigned int get_sby_perpixel_diff_variance(VP9_COMP *cpi,
                                                   MACROBLOCK *x,
                                                   int mi_row,
                                                   int mi_col,
                                                   BLOCK_SIZE bs) {
  const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME);
  int offset = (mi_row * MI_SIZE) * yv12->y_stride + (mi_col * MI_SIZE);
  unsigned int var, sse;
  var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf,
                           x->plane[0].src.stride,
                           yv12->y_buffer + offset,
                           yv12->y_stride,
                           &sse);
  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) {
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb,
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
  if (var < 8)
129
    return BLOCK_64X64;
130
  else if (var < 128)
131
    return BLOCK_32X32;
132
133
134
135
  else if (var < 2048)
    return BLOCK_16X16;
  else
    return BLOCK_8X8;
136
137
}

138
139
140
141
142
143
static BLOCK_SIZE get_nonrd_var_based_fixed_partition(VP9_COMP *cpi,
                                                      int mi_row,
                                                      int mi_col) {
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb,
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
144
  if (var < 4)
145
    return BLOCK_64X64;
146
  else if (var < 10)
147
148
    return BLOCK_32X32;
  else
149
    return BLOCK_16X16;
150
151
}

152
// Original activity measure from Tim T's code.
153
static unsigned int tt_activity_measure(MACROBLOCK *x) {
John Koleszar's avatar
John Koleszar committed
154
155
156
157
158
159
160
161
  unsigned int sse;
  /* 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.).
   */
162
163
164
165
166
167
  unsigned int act = vp9_variance16x16(x->plane[0].src.buf,
                                       x->plane[0].src.stride,
                                       VP9_VAR_OFFS, 0, &sse) << 4;
  // If the region is flat, lower the activity some more.
  if (act < (8 << 12))
    act = MIN(act, 5 << 12);
John Koleszar's avatar
John Koleszar committed
168
169

  return act;
170
171
}

172
// Stub for alternative experimental activity measures.
173
174
static unsigned int alt_activity_measure(MACROBLOCK *x, int use_dc_pred) {
  return vp9_encode_intra(x, use_dc_pred);
175
176
177
178
}

// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
179
#define ALT_ACT_MEASURE 1
180
static unsigned int mb_activity_measure(MACROBLOCK *x, int mb_row, int mb_col) {
John Koleszar's avatar
John Koleszar committed
181
  unsigned int mb_activity;
182

John Koleszar's avatar
John Koleszar committed
183
  if (ALT_ACT_MEASURE) {
184
    const int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
185

John Koleszar's avatar
John Koleszar committed
186
    // Or use and alternative.
187
    mb_activity = alt_activity_measure(x, use_dc_pred);
John Koleszar's avatar
John Koleszar committed
188
189
  } else {
    // Original activity measure from Tim T's code.
190
    mb_activity = tt_activity_measure(x);
John Koleszar's avatar
John Koleszar committed
191
  }
192

193
  return MAX(mb_activity, ACTIVITY_AVG_MIN);
194
195
196
}

// Calculate an "average" mb activity value for the frame
197
#define ACT_MEDIAN 0
198
static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
199
#if ACT_MEDIAN
John Koleszar's avatar
John Koleszar committed
200
201
202
203
204
205
206
207
  // 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
208
209
    CHECK_MEM_ERROR(&cpi->common, sortlist, vpx_calloc(sizeof(unsigned int),
                    cpi->common.MBs));
John Koleszar's avatar
John Koleszar committed
210
211
212

    // Copy map to sort list
    vpx_memcpy(sortlist, cpi->mb_activity_map,
Jim Bankoski's avatar
Jim Bankoski committed
213
        sizeof(unsigned int) * cpi->common.MBs);
John Koleszar's avatar
John Koleszar committed
214
215
216
217
218
219
220
221
222

    // 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;
223
224
225
        } else {
          break;
        }
John Koleszar's avatar
John Koleszar committed
226
227
      }
    }
228

John Koleszar's avatar
John Koleszar committed
229
230
    // 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
231
        sortlist[(cpi->common.MBs >> 1) + 1]) >> 1;
232

John Koleszar's avatar
John Koleszar committed
233
    cpi->activity_avg = median;
234

John Koleszar's avatar
John Koleszar committed
235
236
    vpx_free(sortlist);
  }
237
#else
John Koleszar's avatar
John Koleszar committed
238
  // Simple mean for now
Jim Bankoski's avatar
Jim Bankoski committed
239
  cpi->activity_avg = (unsigned int) (activity_sum / cpi->common.MBs);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
240
#endif  // ACT_MEDIAN
241

242
243
  if (cpi->activity_avg < ACTIVITY_AVG_MIN)
    cpi->activity_avg = ACTIVITY_AVG_MIN;
244

John Koleszar's avatar
John Koleszar committed
245
246
247
  // Experimental code: return fixed value normalized for several clips
  if (ALT_ACT_MEASURE)
    cpi->activity_avg = 100000;
248
249
}

250
#define USE_ACT_INDEX   0
251
#define OUTPUT_NORM_ACT_STATS   0
252
253

#if USE_ACT_INDEX
254
// Calculate an activity index for each mb
255
256
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
  VP9_COMMON *const cm = &cpi->common;
John Koleszar's avatar
John Koleszar committed
257
  int mb_row, mb_col;
258

John Koleszar's avatar
John Koleszar committed
259
260
261
  int64_t act;
  int64_t a;
  int64_t b;
262
263

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
264
265
  FILE *f = fopen("norm_act.stt", "a");
  fprintf(f, "\n%12d\n", cpi->activity_avg);
266
267
#endif

John Koleszar's avatar
John Koleszar committed
268
269
  // Reset pointers to start of activity map
  x->mb_activity_ptr = cpi->mb_activity_map;
270

John Koleszar's avatar
John Koleszar committed
271
272
273
274
275
276
  // 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);
277

John Koleszar's avatar
John Koleszar committed
278
279
280
      // Calculate a normalized activity number
      a = act + 4 * cpi->activity_avg;
      b = 4 * act + cpi->activity_avg;
281

John Koleszar's avatar
John Koleszar committed
282
      if (b >= a)
Jim Bankoski's avatar
Jim Bankoski committed
283
      *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
John Koleszar's avatar
John Koleszar committed
284
      else
Jim Bankoski's avatar
Jim Bankoski committed
285
      *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
286
287

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
288
      fprintf(f, " %6d", *(x->mb_activity_ptr));
289
#endif
John Koleszar's avatar
John Koleszar committed
290
291
292
      // Increment activity map pointers
      x->mb_activity_ptr++;
    }
293
294

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
295
    fprintf(f, "\n");
296
#endif
John Koleszar's avatar
John Koleszar committed
297
  }
298
299

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
300
  fclose(f);
301
302
#endif
}
Dmitry Kovalev's avatar
Dmitry Kovalev committed
303
#endif  // USE_ACT_INDEX
304
305
306

// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
307
static void build_activity_map(VP9_COMP *cpi) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
308
  MACROBLOCK *const x = &cpi->mb;
John Koleszar's avatar
John Koleszar committed
309
  MACROBLOCKD *xd = &x->e_mbd;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
310
  VP9_COMMON *const cm = &cpi->common;
311

312
#if ALT_ACT_MEASURE
313
  YV12_BUFFER_CONFIG *new_yv12 = get_frame_new_buffer(cm);
John Koleszar's avatar
John Koleszar committed
314
315
  int recon_yoffset;
  int recon_y_stride = new_yv12->y_stride;
316
317
#endif

John Koleszar's avatar
John Koleszar committed
318
319
320
  int mb_row, mb_col;
  unsigned int mb_activity;
  int64_t activity_sum = 0;
321

322
323
  x->mb_activity_ptr = cpi->mb_activity_map;

John Koleszar's avatar
John Koleszar committed
324
325
  // for each macroblock row in image
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
326
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
327
328
329
    // reset above block coeffs
    xd->up_available = (mb_row != 0);
    recon_yoffset = (mb_row * recon_y_stride * 16);
330
#endif
John Koleszar's avatar
John Koleszar committed
331
332
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
333
#if ALT_ACT_MEASURE
334
      xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
John Koleszar's avatar
John Koleszar committed
335
336
      xd->left_available = (mb_col != 0);
      recon_yoffset += 16;
337
#endif
338

John Koleszar's avatar
John Koleszar committed
339
      // measure activity
340
      mb_activity = mb_activity_measure(x, mb_row, mb_col);
341

John Koleszar's avatar
John Koleszar committed
342
343
      // Keep frame sum
      activity_sum += mb_activity;
344

John Koleszar's avatar
John Koleszar committed
345
346
      // Store MB level activity details.
      *x->mb_activity_ptr = mb_activity;
347

John Koleszar's avatar
John Koleszar committed
348
349
      // Increment activity map pointer
      x->mb_activity_ptr++;
350

John Koleszar's avatar
John Koleszar committed
351
      // adjust to the next column of source macroblocks
John Koleszar's avatar
John Koleszar committed
352
      x->plane[0].src.buf += 16;
John Koleszar's avatar
John Koleszar committed
353
    }
354

John Koleszar's avatar
John Koleszar committed
355
    // adjust to the next row of mbs
John Koleszar's avatar
John Koleszar committed
356
    x->plane[0].src.buf += 16 * x->plane[0].src.stride - 16 * cm->mb_cols;
John Koleszar's avatar
John Koleszar committed
357
  }
358

John Koleszar's avatar
John Koleszar committed
359
360
  // Calculate an "average" MB activity
  calc_av_activity(cpi, activity_sum);
361

362
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
363
364
  // Calculate an activity index number of each mb
  calc_activity_index(cpi, x);
365
#endif
366
367
}

368
// Macroblock activity masking
369
static void activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
370
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
371
372
373
  x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
374
#else
375
  const int64_t act = *(x->mb_activity_ptr);
376

John Koleszar's avatar
John Koleszar committed
377
  // Apply the masking to the RD multiplier.
378
379
  const int64_t a = act + (2 * cpi->activity_avg);
  const int64_t b = (2 * act) + cpi->activity_avg;
380

Jim Bankoski's avatar
Jim Bankoski committed
381
  x->rdmult = (unsigned int) (((int64_t) x->rdmult * b + (a >> 1)) / a);
John Koleszar's avatar
John Koleszar committed
382
383
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
384
#endif
385

John Koleszar's avatar
John Koleszar committed
386
387
  // Activity based Zbin adjustment
  adjust_act_zbin(cpi, x);
388
}
John Koleszar's avatar
John Koleszar committed
389

390
391
392
393
// Select a segment for the current SB64
static void select_in_frame_q_segment(VP9_COMP *cpi,
                                      int mi_row, int mi_col,
                                      int output_enabled, int projected_rate) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
394
  VP9_COMMON *const cm = &cpi->common;
395
396

  const int mi_offset = mi_row * cm->mi_cols + mi_col;
397
398
  const int bw = num_8x8_blocks_wide_lookup[BLOCK_64X64];
  const int bh = num_8x8_blocks_high_lookup[BLOCK_64X64];
399
400
401
402
403
404
405
406
407
408
409
410
  const int xmis = MIN(cm->mi_cols - mi_col, bw);
  const int ymis = MIN(cm->mi_rows - mi_row, bh);
  int complexity_metric = 64;
  int x, y;

  unsigned char segment;

  if (!output_enabled) {
    segment = 0;
  } else {
    // Rate depends on fraction of a SB64 in frame (xmis * ymis / bw * bh).
    // It is converted to bits * 256 units
411
412
    const int target_rate = (cpi->rc.sb64_target_rate * xmis * ymis * 256) /
                            (bw * bh);
413
414
415
416
417
418
419

    if (projected_rate < (target_rate / 4)) {
      segment = 1;
    } else {
      segment = 0;
    }

Paul Wilkins's avatar
Paul Wilkins committed
420
421
422
423
    if (target_rate > 0) {
      complexity_metric =
        clamp((int)((projected_rate * 64) / target_rate), 16, 255);
    }
424
425
426
427
428
429
430
431
432
433
434
435
  }

  // Fill in the entires in the segment map corresponding to this SB64
  for (y = 0; y < ymis; y++) {
    for (x = 0; x < xmis; x++) {
      cpi->segmentation_map[mi_offset + y * cm->mi_cols + x] = segment;
      cpi->complexity_map[mi_offset + y * cm->mi_cols + x] =
        (unsigned char)complexity_metric;
    }
  }
}

Jim Bankoski's avatar
Jim Bankoski committed
436
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
437
                         BLOCK_SIZE bsize, int output_enabled) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
438
  int i, x_idx, y;
439
440
441
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
442
443
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
John Koleszar's avatar
John Koleszar committed
444
  MODE_INFO *mi = &ctx->mic;
445
446
  MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
  MODE_INFO *mi_addr = xd->mi_8x8[0];
447

448
  const int mis = cm->mode_info_stride;
Jim Bankoski's avatar
Jim Bankoski committed
449
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
450
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
451
  int max_plane;
Adrian Grange's avatar
Adrian Grange committed
452

453
  assert(mi->mbmi.mode < MB_MODE_COUNT);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
454
455
  assert(mi->mbmi.ref_frame[0] < MAX_REF_FRAMES);
  assert(mi->mbmi.ref_frame[1] < MAX_REF_FRAMES);
456
  assert(mi->mbmi.sb_type == bsize);
457

458
459
460
461
462
  // For in frame adaptive Q copy over the chosen segment id into the
  // mode innfo context for the chosen mode / partition.
  if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) && output_enabled)
    mi->mbmi.segment_id = xd->mi_8x8[0]->mbmi.segment_id;

463
464
  *mi_addr = *mi;

465
466
  max_plane = is_inter_block(mbmi) ? MAX_MB_PLANE : 1;
  for (i = 0; i < max_plane; ++i) {
467
    p[i].coeff = ctx->coeff_pbuf[i][1];
468
    p[i].qcoeff = ctx->qcoeff_pbuf[i][1];
469
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1];
470
    p[i].eobs = ctx->eobs_pbuf[i][1];
471
472
  }

473
474
  for (i = max_plane; i < MAX_MB_PLANE; ++i) {
    p[i].coeff = ctx->coeff_pbuf[i][2];
475
    p[i].qcoeff = ctx->qcoeff_pbuf[i][2];
476
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2];
477
    p[i].eobs = ctx->eobs_pbuf[i][2];
478
479
  }

John Koleszar's avatar
John Koleszar committed
480
481
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
482
483
  for (y = 0; y < mi_height; y++)
    for (x_idx = 0; x_idx < mi_width; x_idx++)
James Zern's avatar
James Zern committed
484
      if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx
485
        && (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) {
486
        xd->mi_8x8[x_idx + y * mis] = mi_addr;
487
      }
488

489
490
    if ((cpi->oxcf.aq_mode == VARIANCE_AQ) ||
        (cpi->oxcf.aq_mode == COMPLEXITY_AQ)) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
491
    vp9_init_plane_quantizers(cpi, x);
492
493
  }

494
495
  // FIXME(rbultje) I'm pretty sure this should go to the end of this block
  // (i.e. after the output_enabled)
496
497
  if (bsize < BLOCK_32X32) {
    if (bsize < BLOCK_16X16)
498
499
      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
500
  }
Adrian Grange's avatar
Adrian Grange committed
501

502
  if (is_inter_block(mbmi) && mbmi->sb_type < BLOCK_8X8) {
503
504
    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
505
506
  }

507
  x->skip = ctx->skip;
508
  vpx_memcpy(x->zcoeff_blk[mbmi->tx_size], ctx->zcoeff_blk,
509
             sizeof(uint8_t) * ctx->num_4x4_blk);
510

Ronald S. Bultje's avatar
Ronald S. Bultje committed
511
512
513
  if (!output_enabled)
    return;

514
  if (!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
515
    for (i = 0; i < TX_MODES; i++)
516
      cpi->rd_tx_select_diff[i] += ctx->tx_rd_diff[i];
517
518
  }

519
#if CONFIG_INTERNAL_STATS
520
  if (frame_is_intra_only(cm)) {
John Koleszar's avatar
John Koleszar committed
521
    static const int kf_mode_index[] = {
522
523
524
525
      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
526
527
528
      THR_D135_PRED /*D135_PRED*/,
      THR_D117_PRED /*D117_PRED*/,
      THR_D153_PRED /*D153_PRED*/,
Dmitry Kovalev's avatar
Dmitry Kovalev committed
529
      THR_D207_PRED /*D207_PRED*/,
530
531
      THR_D63_PRED  /*D63_PRED*/,
      THR_TM        /*TM_PRED*/,
John Koleszar's avatar
John Koleszar committed
532
    };
533
    ++cpi->mode_chosen_counts[kf_mode_index[mbmi->mode]];
John Koleszar's avatar
John Koleszar committed
534
535
  } else {
    // Note how often each mode chosen as best
536
537
538
539
    ++cpi->mode_chosen_counts[ctx->best_mode_index];
  }
#endif
  if (!frame_is_intra_only(cm)) {
540
541
    if (is_inter_block(mbmi)) {
      if (mbmi->sb_type < BLOCK_8X8 || mbmi->mode == NEWMV) {
542
        MV best_mv[2];
543
        for (i = 0; i < 1 + has_second_ref(mbmi); ++i)
544
545
          best_mv[i] = mbmi->ref_mvs[mbmi->ref_frame[i]][0].as_mv;
        vp9_update_mv_count(cm, xd, best_mv);
546
547
548
549
550
551
      }

      if (cm->interp_filter == SWITCHABLE) {
        const int ctx = vp9_get_pred_context_switchable_interp(xd);
        ++cm->counts.switchable_interp[ctx][mbmi->interp_filter];
      }
552
    }
Adrian Grange's avatar
Adrian Grange committed
553

554
555
556
    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;
557

558
    for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
559
      cpi->rd_filter_diff[i] += ctx->best_filter_diff[i];
John Koleszar's avatar
John Koleszar committed
560
  }
Adrian Grange's avatar
Adrian Grange committed
561
562
}

Jim Bankoski's avatar
Jim Bankoski committed
563
void vp9_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src,
564
565
566
567
568
                          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};
569
570
  int i;

571
572
573
  // Set current frame pointer.
  x->e_mbd.cur_buf = src;

574
575
  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
576
                     NULL, x->e_mbd.plane[i].subsampling_x,
577
                     x->e_mbd.plane[i].subsampling_y);
John Koleszar's avatar
John Koleszar committed
578
579
}

James Zern's avatar
James Zern committed
580
581
static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile,
                        int mi_row, int mi_col, BLOCK_SIZE bsize) {
582
583
584
  MACROBLOCK *const x = &cpi->mb;
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
585
  MB_MODE_INFO *mbmi;
586
  const int idx_str = xd->mode_info_stride * mi_row + mi_col;
Jim Bankoski's avatar
Jim Bankoski committed
587
588
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
Jingning Han's avatar
Jingning Han committed
589
590
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
591
  const int idx_map = mb_row * cm->mb_cols + mb_col;
592
  const struct segmentation *const seg = &cm->seg;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
593

594
  set_skip_context(xd, cpi->above_context, cpi->left_context, mi_row, mi_col);
595

Ronald S. Bultje's avatar
Ronald S. Bultje committed
596
597
598
599
  // Activity map pointer
  x->mb_activity_ptr = &cpi->mb_activity_map[idx_map];
  x->active_ptr = cpi->active_map + idx_map;

600
601
602
603
604
  xd->mi_8x8 = cm->mi_grid_visible + idx_str;
  xd->prev_mi_8x8 = cm->prev_mi_grid_visible + idx_str;

  xd->last_mi = cm->prev_mi ? xd->prev_mi_8x8[0] : NULL;

605
  xd->mi_8x8[0] = cm->mi + idx_str;
606

607
  mbmi = &xd->mi_8x8[0]->mbmi;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
608
609

  // Set up destination pointers
610
  setup_dst_planes(xd, get_frame_new_buffer(cm), mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
611

Yaowu Xu's avatar
Yaowu Xu committed
612
613
  // Set up limit values for MV components
  // mv beyond the range do not produce new/different prediction block
614
615
  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);
Yaowu Xu's avatar
Yaowu Xu committed
616
617
  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;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
618
619

  // Set up distance of MB to edge of frame in 1/8th pel units
Jim Bankoski's avatar
Jim Bankoski committed
620
  assert(!(mi_col & (mi_width - 1)) && !(mi_row & (mi_height - 1)));
James Zern's avatar
James Zern committed
621
622
  set_mi_row_col(xd, tile, mi_row, mi_height, mi_col, mi_width,
                 cm->mi_rows, cm->mi_cols);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
623
624

  /* set up source buffers */
625
  vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
626
627
628
629
630
631

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

  /* segment ID */
632
  if (seg->enabled) {
633
    if (cpi->oxcf.aq_mode != VARIANCE_AQ) {
634
635
      const uint8_t *const map = seg->update_map ? cpi->segmentation_map
                                                 : cm->last_frame_seg_map;
636
637
      mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
    }
Dmitry Kovalev's avatar
Dmitry Kovalev committed
638
    vp9_init_plane_quantizers(cpi, x);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
639

640
641
642
    if (seg->enabled && cpi->seg0_cnt > 0 &&
        !vp9_segfeature_active(seg, 0, SEG_LVL_REF_FRAME) &&
        vp9_segfeature_active(seg, 1, SEG_LVL_REF_FRAME)) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
643
644
645
646
      cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
    } else {
      const int y = mb_row & ~3;
      const int x = mb_col & ~3;
Jim Bankoski's avatar
Jim Bankoski committed
647
      const int p16 = ((mb_row & 1) << 1) + (mb_col & 1);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
648
      const int p32 = ((mb_row & 2) << 2) + ((mb_col & 2) << 1);
James Zern's avatar
James Zern committed
649
650
      const int tile_progress = tile->mi_col_start * cm->mb_rows >> 1;
      const int mb_cols = (tile->mi_col_end - tile->mi_col_start) >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
651

Jim Bankoski's avatar
Jim Bankoski committed
652
653
      cpi->seg0_progress = ((y * mb_cols + x * 4 + p32 + p16 + tile_progress)
          << 16) / cm->MBs;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
654
    }
655
656

    x->encode_breakout = cpi->segment_encode_breakout[mbmi->segment_id];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
657
658
  } else {
    mbmi->segment_id = 0;
659
    x->encode_breakout = cpi->encode_breakout;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
660
661
662
  }
}

663
664
665
666
667
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) {
668
669
670
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
671
672
673
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
  int i;
674
  int orig_rdmult = x->rdmult;
675
676
  double rdmult_ratio;

677
  vp9_clear_system_state();
678
  rdmult_ratio = 1.0;  // avoid uninitialized warnings
Ronald S. Bultje's avatar
Ronald S. Bultje committed
679

680
  // Use the lower precision, but faster, 32x32 fdct for mode selection.
681
  x->use_lp32x32fdct = 1;
682

683
  if (bsize < BLOCK_8X8) {
684
685
    // When ab_index = 0 all sub-blocks are handled, so for ab_index != 0
    // there is nothing to be done.
686
    if (x->ab_index != 0) {
687
688
      *totalrate = 0;
      *totaldist = 0;
689
      return;
690
    }
691
  }
692

James Zern's avatar
James Zern committed
693
  set_offsets(cpi, tile, mi_row, mi_col, bsize);
694
  xd->mi_8x8[0]->mbmi.sb_type = bsize;
695

696
  for (i = 0; i < MAX_MB_PLANE; ++i) {
697
    p[i].coeff = ctx->coeff_pbuf[i][0];
698
    p[i].qcoeff = ctx->qcoeff_pbuf[i][0];
699
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
700
    p[i].eobs = ctx->eobs_pbuf[i][0];
701
  }
702
  ctx->is_coded = 0;
703
  x->skip_recode = 0;
704

705
  // Set to zero to make sure we do not use the previous encoded frame stats
706
  xd->mi_8x8[0]->mbmi.skip = 0;
707

708
  x->source_variance = get_sby_perpixel_variance(cpi, x, bsize);
709

710
  if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
711
712
    const int energy = bsize <= BLOCK_16X16 ? x->mb_energy
                                            : vp9_block_energy(cpi, x, bsize);
Paul Wilkins's avatar
Paul Wilkins committed
713
714
715
716
717
718
719
720
721
722
723
724

    if (cm->frame_type == KEY_FRAME ||
        cpi->refresh_alt_ref_frame ||
        (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) {
      xd->mi_8x8[0]->mbmi.segment_id = vp9_vaq_segment_id(energy);
    } else {
      const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
                                                    : cm->last_frame_seg_map;
      xd->mi_8x8[0]->mbmi.segment_id =
        vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
    }

725
    rdmult_ratio = vp9_vaq_rdmult_ratio(energy);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
726
    vp9_init_plane_quantizers(cpi, x);
727
728
  }

Ronald S. Bultje's avatar
Ronald S. Bultje committed
729
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
730
    activity_masking(cpi, x);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
731

732
  if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
733
    vp9_clear_system_state();
734
    x->rdmult = (int)round(x->rdmult * rdmult_ratio);
735
736
737
  } else if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
    const int mi_offset = mi_row * cm->mi_cols + mi_col;
    unsigned char complexity = cpi->complexity_map[mi_offset];
Paul Wilkins's avatar
Paul Wilkins committed
738
739
    const int is_edge = (mi_row <= 1) || (mi_row >= (cm->mi_rows - 2)) ||
                        (mi_col <= 1) || (mi_col >= (cm->mi_cols - 2));
740

Paul Wilkins's avatar
Paul Wilkins committed
741
    if (!is_edge && (complexity > 128)) {
742
      x->rdmult = x->rdmult  + ((x->rdmult * (complexity - 128)) / 256);
Paul Wilkins's avatar
Paul Wilkins committed
743
    }
744
  }
745

746
747
  // Find best coding mode & reconstruct the MB so it is available
  // as a predictor for MBs that follow in the SB
748
  if (frame_is_intra_only(cm)) {
749
750
    vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx,
                              best_rd);
751
752
  } else {
    if (bsize >= BLOCK_8X8)
James Zern's avatar
James Zern committed
753
754
      vp9_rd_pick_inter_mode_sb(cpi, x, tile, mi_row, mi_col,
                                totalrate, totaldist, bsize, ctx, best_rd);
755
    else
James Zern's avatar
James Zern committed
756
      vp9_rd_pick_inter_mode_sub8x8(cpi, x, tile, mi_row, mi_col, totalrate,
757
758
                                    totaldist, bsize, ctx, best_rd);
  }
759

760
  if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
761
762
    x->rdmult = orig_rdmult;
    if (*totalrate != INT_MAX) {
763
      vp9_clear_system_state();
764
      *totalrate = (int)round(*totalrate * rdmult_ratio);
765
766
    }
  }
Paul Wilkins's avatar
Paul Wilkins committed
767
768
769
  else if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
    x->rdmult = orig_rdmult;
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
770
}
Adrian Grange's avatar
Adrian Grange committed
771

772
773
static void update_stats(VP9_COMP *cpi) {
  VP9_COMMON *const cm = &cpi->common;
774
775
776
777
  const MACROBLOCK *const x = &cpi->mb;
  const MACROBLOCKD *const xd = &x->e_mbd;
  const MODE_INFO *const mi = xd->mi_8x8[0];
  const MB_MODE_INFO *const mbmi = &mi->mbmi;
Adrian Grange's avatar
Adrian Grange committed
778

779
  if (!frame_is_intra_only(cm)) {
780
    const int seg_ref_active = vp9_segfeature_active(&cm->seg, mbmi->segment_id,
781
                                                     SEG_LVL_REF_FRAME);
782
783
784
785
786
787
788
789
790
791
792
    if (!seg_ref_active) {
      FRAME_COUNTS *const counts = &cm->counts;
      const int inter_block = is_inter_block(mbmi);

      counts->intra_inter[vp9_get_intra_inter_context(xd)][inter_block]++;

      // If the segment reference feature is enabled we have only a single
      // reference frame allowed for the segment so exclude it from
      // the reference frame counts used to work out probabilities.
      if (inter_block) {
        const MV_REFERENCE_FRAME ref0 = mbmi->ref_frame[0];
793

794
795
796
797
798
799
800
801
802
803
804
805
806
807
        if (cm->reference_mode == REFERENCE_MODE_SELECT)
          counts->comp_inter[vp9_get_reference_mode_context(cm, xd)]
                            [has_second_ref(mbmi)]++;

        if (has_second_ref(mbmi)) {
          counts->comp_ref[vp9_get_pred_context_comp_ref_p(cm, xd)]
                          [ref0 == GOLDEN_FRAME]++;
        } else {
          counts->single_ref[vp9_get_pred_context_single_ref_p1(xd)][0]
                            [ref0 != LAST_FRAME]++;
          if (ref0 != LAST_FRAME)
            counts->single_ref[vp9_get_pred_context_single_ref_p2(xd)][1]
                              [ref0 != GOLDEN_FRAME]++;
        }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
808
      }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
809
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
810
811
  }
}
John Koleszar's avatar
John Koleszar committed
812

813
static BLOCK_SIZE *get_sb_partitioning(MACROBLOCK *x, BLOCK_SIZE bsize) {
814
  switch (bsize) {
815
    case BLOCK_64X64:
816
      return &x->sb64_partitioning;
817
    case BLOCK_32X32:
818
      return &x->sb_partitioning[x->sb_index];
819
    case BLOCK_16X16:
820
      return &x->mb_partitioning[x->sb_index][x->mb_index];