vp9_encodeframe.c 71.4 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
#include "./vpx_config.h"
Jim Bankoski's avatar
Jim Bankoski committed
13
#include "./vp9_rtcd.h"
14
#include "vp9/encoder/vp9_encodeframe.h"
15
16
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
17
#include "vp9/common/vp9_common.h"
18
#include "vp9/encoder/vp9_onyx_int.h"
19
#include "vp9/common/vp9_extend.h"
Yaowu Xu's avatar
Yaowu Xu committed
20
#include "vp9/common/vp9_entropy.h"
21
22
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_quant_common.h"
23
24
#include "vp9/encoder/vp9_segmentation.h"
#include "vp9/encoder/vp9_encodeintra.h"
25
26
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_invtrans.h"
27
#include "vp9/encoder/vp9_rdopt.h"
28
29
30
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_seg_common.h"
31
#include "vp9/common/vp9_tile_common.h"
32
#include "vp9/encoder/vp9_tokenize.h"
Yaowu Xu's avatar
Yaowu Xu committed
33
#include "./vp9_rtcd.h"
John Koleszar's avatar
John Koleszar committed
34
#include <stdio.h>
35
#include <math.h>
John Koleszar's avatar
John Koleszar committed
36
37
#include <limits.h>
#include "vpx_ports/vpx_timer.h"
38
39
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_mvref_common.h"
Paul Wilkins's avatar
Paul Wilkins committed
40

Yaowu Xu's avatar
Yaowu Xu committed
41
#define DBG_PRNT_SEGMAP 0
42

43
// #define ENC_DEBUG
44
#ifdef ENC_DEBUG
John Koleszar's avatar
John Koleszar committed
45
int enc_debug = 0;
46
47
#endif

Dmitry Kovalev's avatar
Dmitry Kovalev committed
48
void vp9_select_interp_filter_type(VP9_COMP *cpi);
49

50
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
51
                              int output_enabled, int mi_row, int mi_col,
52
                              BLOCK_SIZE_TYPE bsize);
53

54
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
55

56
57
58
/* 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
59
 *  vp9_activity_masking().
60
 */
61
#define VP9_ACTIVITY_AVG_MIN (64)
62
63
64
65
66
67

/* 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.
 */
68
static const uint8_t VP9_VAR_OFFS[16] = {
John Koleszar's avatar
John Koleszar committed
69
  128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
70
71
};

72
73

// Original activity measure from Tim T's code.
74
static unsigned int tt_activity_measure(VP9_COMP *cpi, MACROBLOCK *x) {
John Koleszar's avatar
John Koleszar committed
75
76
77
78
79
80
81
82
83
  unsigned int act;
  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.).
   */
John Koleszar's avatar
John Koleszar committed
84
85
  act = vp9_variance16x16(x->plane[0].src.buf, x->plane[0].src.stride,
                          VP9_VAR_OFFS, 0, &sse);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
86
  act <<= 4;
John Koleszar's avatar
John Koleszar committed
87
88
89
90
91
92

  /* If the region is flat, lower the activity some more. */
  if (act < 8 << 12)
    act = act < 5 << 12 ? act : 5 << 12;

  return act;
93
94
}

95
// Stub for alternative experimental activity measures.
96
static unsigned int alt_activity_measure(VP9_COMP *cpi,
John Koleszar's avatar
John Koleszar committed
97
                                         MACROBLOCK *x, int use_dc_pred) {
98
  return vp9_encode_intra(cpi, x, use_dc_pred);
99
100
}

Jim Bankoski's avatar
Jim Bankoski committed
101
102
DECLARE_ALIGNED(16, static const uint8_t, vp9_64x64_zeros[64*64]) = { 0 };

103
104
105

// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
106
#define ALT_ACT_MEASURE 1
107
static unsigned int mb_activity_measure(VP9_COMP *cpi, MACROBLOCK *x,
John Koleszar's avatar
John Koleszar committed
108
109
                                        int mb_row, int mb_col) {
  unsigned int mb_activity;
110

John Koleszar's avatar
John Koleszar committed
111
112
  if (ALT_ACT_MEASURE) {
    int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
113

John Koleszar's avatar
John Koleszar committed
114
115
116
117
118
119
    // Or use and alternative.
    mb_activity = alt_activity_measure(cpi, x, use_dc_pred);
  } else {
    // Original activity measure from Tim T's code.
    mb_activity = tt_activity_measure(cpi, x);
  }
120

121
122
  if (mb_activity < VP9_ACTIVITY_AVG_MIN)
    mb_activity = VP9_ACTIVITY_AVG_MIN;
123

John Koleszar's avatar
John Koleszar committed
124
  return mb_activity;
125
126
127
}

// Calculate an "average" mb activity value for the frame
128
#define ACT_MEDIAN 0
129
static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
130
#if ACT_MEDIAN
John Koleszar's avatar
John Koleszar committed
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
  // 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
    CHECK_MEM_ERROR(sortlist,
    vpx_calloc(sizeof(unsigned int),
    cpi->common.MBs));

    // Copy map to sort list
    vpx_memcpy(sortlist, cpi->mb_activity_map,
    sizeof(unsigned int) * cpi->common.MBs);


    // 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;
        } else
          break;
      }
    }
160

John Koleszar's avatar
John Koleszar committed
161
162
163
    // Even number MBs so estimate median as mean of two either side.
    median = (1 + sortlist[cpi->common.MBs >> 1] +
              sortlist[(cpi->common.MBs >> 1) + 1]) >> 1;
164

John Koleszar's avatar
John Koleszar committed
165
    cpi->activity_avg = median;
166

John Koleszar's avatar
John Koleszar committed
167
168
    vpx_free(sortlist);
  }
169
#else
John Koleszar's avatar
John Koleszar committed
170
171
  // Simple mean for now
  cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
172
173
#endif

174
175
  if (cpi->activity_avg < VP9_ACTIVITY_AVG_MIN)
    cpi->activity_avg = VP9_ACTIVITY_AVG_MIN;
176

John Koleszar's avatar
John Koleszar committed
177
178
179
  // Experimental code: return fixed value normalized for several clips
  if (ALT_ACT_MEASURE)
    cpi->activity_avg = 100000;
180
181
}

182
#define USE_ACT_INDEX   0
183
#define OUTPUT_NORM_ACT_STATS   0
184
185

#if USE_ACT_INDEX
186
// Calculate an activity index for each mb
187
188
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
  VP9_COMMON *const cm = &cpi->common;
John Koleszar's avatar
John Koleszar committed
189
  int mb_row, mb_col;
190

John Koleszar's avatar
John Koleszar committed
191
192
193
  int64_t act;
  int64_t a;
  int64_t b;
194
195

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
196
197
  FILE *f = fopen("norm_act.stt", "a");
  fprintf(f, "\n%12d\n", cpi->activity_avg);
198
199
#endif

John Koleszar's avatar
John Koleszar committed
200
201
  // Reset pointers to start of activity map
  x->mb_activity_ptr = cpi->mb_activity_map;
202

John Koleszar's avatar
John Koleszar committed
203
204
205
206
207
208
  // 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);
209

John Koleszar's avatar
John Koleszar committed
210
211
212
      // Calculate a normalized activity number
      a = act + 4 * cpi->activity_avg;
      b = 4 * act + cpi->activity_avg;
213

John Koleszar's avatar
John Koleszar committed
214
215
216
217
      if (b >= a)
        *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
      else
        *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
218
219

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
220
      fprintf(f, " %6d", *(x->mb_activity_ptr));
221
#endif
John Koleszar's avatar
John Koleszar committed
222
223
224
      // Increment activity map pointers
      x->mb_activity_ptr++;
    }
225
226

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
227
    fprintf(f, "\n");
228
229
#endif

John Koleszar's avatar
John Koleszar committed
230
  }
231
232

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
233
  fclose(f);
234
235
236
#endif

}
237
#endif
238
239
240

// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
241
static void build_activity_map(VP9_COMP *cpi) {
John Koleszar's avatar
John Koleszar committed
242
  MACROBLOCK *const x = &cpi->mb;
John Koleszar's avatar
John Koleszar committed
243
  MACROBLOCKD *xd = &x->e_mbd;
244
  VP9_COMMON *const cm = &cpi->common;
245

246
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
247
248
249
  YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
  int recon_yoffset;
  int recon_y_stride = new_yv12->y_stride;
250
251
#endif

John Koleszar's avatar
John Koleszar committed
252
253
254
  int mb_row, mb_col;
  unsigned int mb_activity;
  int64_t activity_sum = 0;
255

256
257
  x->mb_activity_ptr = cpi->mb_activity_map;

John Koleszar's avatar
John Koleszar committed
258
259
  // for each macroblock row in image
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
260
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
261
262
263
    // reset above block coeffs
    xd->up_available = (mb_row != 0);
    recon_yoffset = (mb_row * recon_y_stride * 16);
264
#endif
John Koleszar's avatar
John Koleszar committed
265
266
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
267
#if ALT_ACT_MEASURE
268
      xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
John Koleszar's avatar
John Koleszar committed
269
270
      xd->left_available = (mb_col != 0);
      recon_yoffset += 16;
271
#endif
272

John Koleszar's avatar
John Koleszar committed
273
274
      // measure activity
      mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col);
275

John Koleszar's avatar
John Koleszar committed
276
277
      // Keep frame sum
      activity_sum += mb_activity;
278

John Koleszar's avatar
John Koleszar committed
279
280
      // Store MB level activity details.
      *x->mb_activity_ptr = mb_activity;
281

John Koleszar's avatar
John Koleszar committed
282
283
      // Increment activity map pointer
      x->mb_activity_ptr++;
284

John Koleszar's avatar
John Koleszar committed
285
      // adjust to the next column of source macroblocks
John Koleszar's avatar
John Koleszar committed
286
      x->plane[0].src.buf += 16;
John Koleszar's avatar
John Koleszar committed
287
    }
288

289

John Koleszar's avatar
John Koleszar committed
290
    // adjust to the next row of mbs
John Koleszar's avatar
John Koleszar committed
291
    x->plane[0].src.buf += 16 * x->plane[0].src.stride - 16 * cm->mb_cols;
John Koleszar's avatar
John Koleszar committed
292
  }
293

John Koleszar's avatar
John Koleszar committed
294
295
  // Calculate an "average" MB activity
  calc_av_activity(cpi, activity_sum);
296

297
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
298
299
  // Calculate an activity index number of each mb
  calc_activity_index(cpi, x);
300
301
#endif

302
303
}

304
// Macroblock activity masking
305
void vp9_activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
306
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
307
308
309
  x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
310
#else
John Koleszar's avatar
John Koleszar committed
311
312
313
  int64_t a;
  int64_t b;
  int64_t act = *(x->mb_activity_ptr);
314

John Koleszar's avatar
John Koleszar committed
315
316
317
  // Apply the masking to the RD multiplier.
  a = act + (2 * cpi->activity_avg);
  b = (2 * act) + cpi->activity_avg;
318

John Koleszar's avatar
John Koleszar committed
319
320
321
  x->rdmult = (unsigned int)(((int64_t)x->rdmult * b + (a >> 1)) / a);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
322
#endif
323

John Koleszar's avatar
John Koleszar committed
324
325
  // Activity based Zbin adjustment
  adjust_act_zbin(cpi, x);
326
}
John Koleszar's avatar
John Koleszar committed
327

328
static void update_state(VP9_COMP *cpi,
329
330
                         PICK_MODE_CONTEXT *ctx,
                         BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
331
332
                         int output_enabled) {
  int i, x_idx, y;
333
  VP9_COMMON *const cm = &cpi->common;
334
335
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
John Koleszar's avatar
John Koleszar committed
336
  MODE_INFO *mi = &ctx->mic;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
337
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
338
339
340
#if CONFIG_DEBUG || CONFIG_INTERNAL_STATS
  MB_PREDICTION_MODE mb_mode = mi->mbmi.mode;
#endif
John Koleszar's avatar
John Koleszar committed
341
  int mb_mode_index = ctx->best_mode_index;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
342
  const int mis = cpi->common.mode_info_stride;
343
  const int bh = 1 << mi_height_log2(bsize), bw = 1 << mi_width_log2(bsize);
Adrian Grange's avatar
Adrian Grange committed
344
345

#if CONFIG_DEBUG
John Koleszar's avatar
John Koleszar committed
346
347
348
  assert(mb_mode < MB_MODE_COUNT);
  assert(mb_mode_index < MAX_MODES);
  assert(mi->mbmi.ref_frame < MAX_REF_FRAMES);
Adrian Grange's avatar
Adrian Grange committed
349
350
#endif

351
  assert(mi->mbmi.sb_type == bsize);
John Koleszar's avatar
John Koleszar committed
352
353
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
354
355
  for (y = 0; y < bh; y++) {
    for (x_idx = 0; x_idx < bw; x_idx++) {
356
357
      if ((xd->mb_to_right_edge >> (3 + LOG2_MI_SIZE)) + bw > x_idx &&
          (xd->mb_to_bottom_edge >> (3 + LOG2_MI_SIZE)) + bh > y) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
358
        MODE_INFO *mi_addr = xd->mode_info_context + x_idx + y * mis;
359
        *mi_addr = *mi;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
360
      }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
361
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
362
  }
363
  if (bsize < BLOCK_SIZE_SB32X32) {
364
365
    if (bsize < BLOCK_SIZE_MB16X16)
      ctx->txfm_rd_diff[ALLOW_16X16] = ctx->txfm_rd_diff[ALLOW_8X8];
366
    ctx->txfm_rd_diff[ALLOW_32X32] = ctx->txfm_rd_diff[ALLOW_16X16];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
367
  }
Adrian Grange's avatar
Adrian Grange committed
368

369
370
371
372
  if (mbmi->ref_frame != INTRA_FRAME && mbmi->sb_type < BLOCK_SIZE_SB8X8) {
    *x->partition_info = ctx->partition_info;
    mbmi->mv[0].as_int = x->partition_info->bmi[3].mv.as_int;
    mbmi->mv[1].as_int = x->partition_info->bmi[3].second_mv.as_int;
John Koleszar's avatar
John Koleszar committed
373
374
  }

375
  x->skip = ctx->skip;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
376
377
378
  if (!output_enabled)
    return;

379
  {
380
    int segment_id = mbmi->segment_id, ref_pred_flag;
Paul Wilkins's avatar
Paul Wilkins committed
381
    if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
382
383
384
385
      for (i = 0; i < NB_TXFM_MODES; i++) {
        cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i];
      }
    }
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402

    // Did the chosen reference frame match its predicted value.
    ref_pred_flag = ((xd->mode_info_context->mbmi.ref_frame ==
                      vp9_get_pred_ref(cm, xd)));
    vp9_set_pred_flag(xd, PRED_REF, ref_pred_flag);
    if (!xd->segmentation_enabled ||
        !vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME) ||
        vp9_check_segref(xd, segment_id, INTRA_FRAME)  +
        vp9_check_segref(xd, segment_id, LAST_FRAME)   +
        vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
        vp9_check_segref(xd, segment_id, ALTREF_FRAME) > 1) {
      // Get the prediction context and status
      int pred_context = vp9_get_pred_context(cm, xd, PRED_REF);

      // Count prediction success
      cpi->ref_pred_count[pred_context][ref_pred_flag]++;
    }
403
404
  }

John Koleszar's avatar
John Koleszar committed
405
406
  if (cpi->common.frame_type == KEY_FRAME) {
    // Restore the coding modes to that held in the coding context
Yaowu Xu's avatar
Yaowu Xu committed
407
    // if (mb_mode == I4X4_PRED)
John Koleszar's avatar
John Koleszar committed
408
409
410
411
412
413
    //    for (i = 0; i < 16; i++)
    //    {
    //        xd->block[i].bmi.as_mode =
    //                          xd->mode_info_context->bmi[i].as_mode;
    //        assert(xd->mode_info_context->bmi[i].as_mode < MB_MODE_COUNT);
    //    }
414
#if CONFIG_INTERNAL_STATS
John Koleszar's avatar
John Koleszar committed
415
416
417
418
419
420
421
422
423
424
425
    static const int kf_mode_index[] = {
      THR_DC /*DC_PRED*/,
      THR_V_PRED /*V_PRED*/,
      THR_H_PRED /*H_PRED*/,
      THR_D45_PRED /*D45_PRED*/,
      THR_D135_PRED /*D135_PRED*/,
      THR_D117_PRED /*D117_PRED*/,
      THR_D153_PRED /*D153_PRED*/,
      THR_D27_PRED /*D27_PRED*/,
      THR_D63_PRED /*D63_PRED*/,
      THR_TM /*TM_PRED*/,
Yaowu Xu's avatar
Yaowu Xu committed
426
      THR_B_PRED /*I4X4_PRED*/,
John Koleszar's avatar
John Koleszar committed
427
428
    };
    cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++;
429
#endif
John Koleszar's avatar
John Koleszar committed
430
431
432
433
434
435
436
  } else {
    /*
            // Reduce the activation RD thresholds for the best choice mode
            if ((cpi->rd_baseline_thresh[mb_mode_index] > 0) &&
                (cpi->rd_baseline_thresh[mb_mode_index] < (INT_MAX >> 2)))
            {
                int best_adjustment = (cpi->rd_thresh_mult[mb_mode_index] >> 2);
Adrian Grange's avatar
Adrian Grange committed
437

John Koleszar's avatar
John Koleszar committed
438
439
440
441
442
443
444
445
                cpi->rd_thresh_mult[mb_mode_index] =
                        (cpi->rd_thresh_mult[mb_mode_index]
                         >= (MIN_THRESHMULT + best_adjustment)) ?
                                cpi->rd_thresh_mult[mb_mode_index] - best_adjustment :
                                MIN_THRESHMULT;
                cpi->rd_threshes[mb_mode_index] =
                        (cpi->rd_baseline_thresh[mb_mode_index] >> 7)
                        * cpi->rd_thresh_mult[mb_mode_index];
Adrian Grange's avatar
Adrian Grange committed
446

John Koleszar's avatar
John Koleszar committed
447
448
449
450
            }
    */
    // Note how often each mode chosen as best
    cpi->mode_chosen_counts[mb_mode_index]++;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
451
452
    if (mbmi->ref_frame != INTRA_FRAME &&
        (mbmi->sb_type < BLOCK_SIZE_SB8X8 || mbmi->mode == NEWMV)) {
Deb Mukherjee's avatar
Deb Mukherjee committed
453
454
455
456
457
458
459
460
461
462
463
      int_mv best_mv, best_second_mv;
      MV_REFERENCE_FRAME rf = mbmi->ref_frame;
      best_mv.as_int = ctx->best_ref_mv.as_int;
      best_second_mv.as_int = ctx->second_best_ref_mv.as_int;
      if (mbmi->mode == NEWMV) {
        best_mv.as_int = mbmi->ref_mvs[rf][0].as_int;
        best_second_mv.as_int = mbmi->ref_mvs[mbmi->second_ref_frame][0].as_int;
      }
      mbmi->best_mv.as_int = best_mv.as_int;
      mbmi->best_second_mv.as_int = best_second_mv.as_int;
      vp9_update_nmv_count(cpi, x, &best_mv, &best_second_mv);
464
    }
Jingning Han's avatar
Jingning Han committed
465

466
467
468
469
470
    if (bsize > BLOCK_SIZE_SB8X8 && mbmi->mode == NEWMV) {
      int i, j;
      for (j = 0; j < bh; ++j)
        for (i = 0; i < bw; ++i)
          xd->mode_info_context[mis * j + i].mbmi = *mbmi;
Deb Mukherjee's avatar
Deb Mukherjee committed
471
    }
472

473
    if (cpi->common.mcomp_filter_type == SWITCHABLE &&
474
        is_inter_mode(mbmi->mode)) {
475
      ++cpi->common.fc.switchable_interp_count
476
477
478
          [vp9_get_pred_context(&cpi->common, xd, PRED_SWITCHABLE_INTERP)]
          [vp9_switchable_interp_map[mbmi->interp_filter]];
    }
Adrian Grange's avatar
Adrian Grange committed
479

480
481
482
    cpi->rd_comp_pred_diff[SINGLE_PREDICTION_ONLY] += ctx->single_pred_diff;
    cpi->rd_comp_pred_diff[COMP_PREDICTION_ONLY]   += ctx->comp_pred_diff;
    cpi->rd_comp_pred_diff[HYBRID_PREDICTION]      += ctx->hybrid_pred_diff;
John Koleszar's avatar
John Koleszar committed
483
  }
Adrian Grange's avatar
Adrian Grange committed
484
485
}

486
static unsigned find_seg_id(uint8_t *buf, BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
487
                            int start_y, int height, int start_x, int width) {
488
  const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize);
489
490
  const int end_x = MIN(start_x + bw, width);
  const int end_y = MIN(start_y + bh, height);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
491
492
493
494
495
496
497
498
499
500
501
502
503
  int x, y;
  unsigned seg_id = -1;

  buf += width * start_y;
  for (y = start_y; y < end_y; y++, buf += width) {
    for (x = start_x; x < end_x; x++) {
      seg_id = MIN(seg_id, buf[x]);
    }
  }

  return seg_id;
}

John Koleszar's avatar
John Koleszar committed
504
505
506
void vp9_setup_src_planes(MACROBLOCK *x,
                          const YV12_BUFFER_CONFIG *src,
                          int mb_row, int mb_col) {
507
508
509
510
511
512
513
514
515
516
517
518
519
  uint8_t *buffers[4] = {src->y_buffer, src->u_buffer, src->v_buffer,
                         src->alpha_buffer};
  int strides[4] = {src->y_stride, src->uv_stride, src->uv_stride,
                    src->alpha_stride};
  int i;

  for (i = 0; i < MAX_MB_PLANE; i++) {
    setup_pred_plane(&x->plane[i].src,
                     buffers[i], strides[i],
                     mb_row, mb_col, NULL,
                     x->e_mbd.plane[i].subsampling_x,
                     x->e_mbd.plane[i].subsampling_y);
  }
John Koleszar's avatar
John Koleszar committed
520
521
}

Ronald S. Bultje's avatar
Ronald S. Bultje committed
522
static void set_offsets(VP9_COMP *cpi,
523
                        int mi_row, int mi_col, BLOCK_SIZE_TYPE bsize) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
524
525
526
527
528
  MACROBLOCK *const x = &cpi->mb;
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *mbmi;
  const int dst_fb_idx = cm->new_fb_idx;
529
530
  const int idx_str = xd->mode_info_stride * mi_row + mi_col;
  const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize);
Jingning Han's avatar
Jingning Han committed
531
532
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
533
  const int idx_map = mb_row * cm->mb_cols + mb_col;
534
  int i;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
535
536

  // entropy context structures
537
538
  for (i = 0; i < MAX_MB_PLANE; i++) {
    xd->plane[i].above_context = cm->above_context[i] +
Jingning Han's avatar
Jingning Han committed
539
        (mi_col * 2 >>  xd->plane[i].subsampling_x);
540
    xd->plane[i].left_context = cm->left_context[i] +
Jingning Han's avatar
Jingning Han committed
541
        (((mi_row * 2) & 15) >> xd->plane[i].subsampling_y);
542
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
543

544
  // partition contexts
545
  set_partition_seg_context(cm, xd, mi_row, mi_col);
546

Ronald S. Bultje's avatar
Ronald S. Bultje committed
547
548
549
550
551
552
553
554
  // Activity map pointer
  x->mb_activity_ptr = &cpi->mb_activity_map[idx_map];
  x->active_ptr = cpi->active_map + idx_map;

  /* pointers to mode info contexts */
  x->partition_info          = x->pi + idx_str;
  xd->mode_info_context      = cm->mi + idx_str;
  mbmi = &xd->mode_info_context->mbmi;
555
556
557
558
  // Special case: if prev_mi is NULL, the previous mode info context
  // cannot be used.
  xd->prev_mode_info_context = cm->prev_mi ?
                                 cm->prev_mi + idx_str : NULL;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
559
560

  // Set up destination pointers
561
  setup_dst_planes(xd, &cm->yv12_fb[dst_fb_idx], mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
562
563
564

  /* Set up limit values for MV components to prevent them from
   * extending beyond the UMV borders assuming 16x16 block size */
565
566
567
568
569
570
  x->mv_row_min = -((mi_row * MI_SIZE) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
  x->mv_col_min = -((mi_col * MI_SIZE) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
  x->mv_row_max = ((cm->mi_rows - mi_row) * MI_SIZE +
                   (VP9BORDERINPIXELS - MI_SIZE * bh - VP9_INTERP_EXTEND));
  x->mv_col_max = ((cm->mi_cols - mi_col) * MI_SIZE +
                   (VP9BORDERINPIXELS - MI_SIZE * bw - VP9_INTERP_EXTEND));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
571
572

  // Set up distance of MB to edge of frame in 1/8th pel units
573
574
  assert(!(mi_col & (bw - 1)) && !(mi_row & (bh - 1)));
  set_mi_row_col(cm, xd, mi_row, bh, mi_col, bw);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
575
576

  /* set up source buffers */
577
  vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
578
579
580
581
582
583
584

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

  /* segment ID */
  if (xd->segmentation_enabled) {
585
586
587
588
589
    uint8_t *map = xd->update_mb_segmentation_map ? cpi->segmentation_map
                                                  : cm->last_frame_seg_map;
    mbmi->segment_id = find_seg_id(map, bsize, mi_row,
                                   cm->mi_rows, mi_col, cm->mi_cols);

590
    assert(mbmi->segment_id <= (MAX_MB_SEGMENTS-1));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
    vp9_mb_init_quantizer(cpi, x);

    if (xd->segmentation_enabled && cpi->seg0_cnt > 0 &&
        !vp9_segfeature_active(xd, 0, SEG_LVL_REF_FRAME) &&
        vp9_segfeature_active(xd, 1, SEG_LVL_REF_FRAME) &&
        vp9_check_segref(xd, 1, INTRA_FRAME)  +
        vp9_check_segref(xd, 1, LAST_FRAME)   +
        vp9_check_segref(xd, 1, GOLDEN_FRAME) +
        vp9_check_segref(xd, 1, ALTREF_FRAME) == 1) {
      cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
    } else {
      const int y = mb_row & ~3;
      const int x = mb_col & ~3;
      const int p16 = ((mb_row & 1) << 1) +  (mb_col & 1);
      const int p32 = ((mb_row & 2) << 2) + ((mb_col & 2) << 1);
606
      const int tile_progress =
Jingning Han's avatar
Jingning Han committed
607
          cm->cur_tile_mi_col_start * cm->mb_rows >> 1;
608
      const int mb_cols =
Jingning Han's avatar
Jingning Han committed
609
          (cm->cur_tile_mi_col_end - cm->cur_tile_mi_col_start) >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
610
611

      cpi->seg0_progress =
612
          ((y * mb_cols + x * 4 + p32 + p16 + tile_progress) << 16) / cm->MBs;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
613
614
615
616
617
618
    }
  } else {
    mbmi->segment_id = 0;
  }
}

619
static void pick_sb_modes(VP9_COMP *cpi, int mi_row, int mi_col,
620
621
                          TOKENEXTRA **tp, int *totalrate, int *totaldist,
                          BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) {
622
623
624
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
625

626
627
628
629
  if (bsize < BLOCK_SIZE_SB8X8)
    if (xd->ab_index != 0)
      return;

630
  set_offsets(cpi, mi_row, mi_col, bsize);
631
  xd->mode_info_context->mbmi.sb_type = bsize;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
632
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
633
    vp9_activity_masking(cpi, x);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
634
635
636

  /* Find best coding mode & reconstruct the MB so it is available
   * as a predictor for MBs that follow in the SB */
Ronald S. Bultje's avatar
Ronald S. Bultje committed
637
  if (cm->frame_type == KEY_FRAME) {
638
    vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
639
  } else {
640
    vp9_rd_pick_inter_mode_sb(cpi, x, mi_row, mi_col, totalrate, totaldist,
641
                              bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
642
643
  }
}
Adrian Grange's avatar
Adrian Grange committed
644

645
static void update_stats(VP9_COMP *cpi, int mi_row, int mi_col) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
646
647
648
649
650
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
  MODE_INFO *mi = xd->mode_info_context;
  MB_MODE_INFO *const mbmi = &mi->mbmi;
Adrian Grange's avatar
Adrian Grange committed
651

Paul Wilkins's avatar
Paul Wilkins committed
652
  if (cm->frame_type != KEY_FRAME) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
653
    int segment_id, seg_ref_active;
John Koleszar's avatar
John Koleszar committed
654

Ronald S. Bultje's avatar
Ronald S. Bultje committed
655
656
    if (mbmi->ref_frame) {
      int pred_context = vp9_get_pred_context(cm, xd, PRED_COMP);
657

Ronald S. Bultje's avatar
Ronald S. Bultje committed
658
659
660
661
      if (mbmi->second_ref_frame <= INTRA_FRAME)
        cpi->single_pred_count[pred_context]++;
      else
        cpi->comp_pred_count[pred_context]++;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
662
    }
Adrian Grange's avatar
Adrian Grange committed
663

Ronald S. Bultje's avatar
Ronald S. Bultje committed
664
665
666
667
668
669
670
671
672
673
674
675
676
677
    // If we have just a single reference frame coded for a segment then
    // exclude from the reference frame counts used to work out
    // probabilities. NOTE: At the moment we dont support custom trees
    // for the reference frame coding for each segment but this is a
    // possible future action.
    segment_id = mbmi->segment_id;
    seg_ref_active = vp9_segfeature_active(xd, segment_id,
                                           SEG_LVL_REF_FRAME);
    if (!seg_ref_active ||
        ((vp9_check_segref(xd, segment_id, INTRA_FRAME) +
          vp9_check_segref(xd, segment_id, LAST_FRAME) +
          vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
          vp9_check_segref(xd, segment_id, ALTREF_FRAME)) > 1)) {
      cpi->count_mb_ref_frame_usage[mbmi->ref_frame]++;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
678
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
679
680
681
682
683
    // Count of last ref frame 0,0 usage
    if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
      cpi->inter_zz_count++;
  }
}
John Koleszar's avatar
John Koleszar committed
684

685
686
687
// TODO(jingning): the variables used here are little complicated. need further
// refactoring on organizing the the temporary buffers, when recursive
// partition down to 4x4 block size is enabled.
688
689
690
static PICK_MODE_CONTEXT *get_block_context(MACROBLOCK *x,
                                            BLOCK_SIZE_TYPE bsize) {
  MACROBLOCKD *const xd = &x->e_mbd;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
691

692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
  switch (bsize) {
    case BLOCK_SIZE_SB64X64:
      return &x->sb64_context;
    case BLOCK_SIZE_SB64X32:
      return &x->sb64x32_context[xd->sb_index];
    case BLOCK_SIZE_SB32X64:
      return &x->sb32x64_context[xd->sb_index];
    case BLOCK_SIZE_SB32X32:
      return &x->sb32_context[xd->sb_index];
    case BLOCK_SIZE_SB32X16:
      return &x->sb32x16_context[xd->sb_index][xd->mb_index];
    case BLOCK_SIZE_SB16X32:
      return &x->sb16x32_context[xd->sb_index][xd->mb_index];
    case BLOCK_SIZE_MB16X16:
      return &x->mb_context[xd->sb_index][xd->mb_index];
707
708
709
710
711
    case BLOCK_SIZE_SB16X8:
      return &x->sb16x8_context[xd->sb_index][xd->mb_index][xd->b_index];
    case BLOCK_SIZE_SB8X16:
      return &x->sb8x16_context[xd->sb_index][xd->mb_index][xd->b_index];
    case BLOCK_SIZE_SB8X8:
712
713
714
715
716
717
718
      return &x->sb8x8_context[xd->sb_index][xd->mb_index][xd->b_index];
    case BLOCK_SIZE_SB8X4:
      return &x->sb8x4_context[xd->sb_index][xd->mb_index][xd->b_index];
    case BLOCK_SIZE_SB4X8:
      return &x->sb4x8_context[xd->sb_index][xd->mb_index][xd->b_index];
    case BLOCK_SIZE_AB4X4:
      return &x->ab4x4_context[xd->sb_index][xd->mb_index][xd->b_index];
719
720
721
722
723
    default:
      assert(0);
      return NULL;
  }
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
724

725
726
727
728
729
730
731
732
733
734
static BLOCK_SIZE_TYPE *get_sb_partitioning(MACROBLOCK *x,
                                            BLOCK_SIZE_TYPE bsize) {
  MACROBLOCKD *xd = &x->e_mbd;
  switch (bsize) {
    case BLOCK_SIZE_SB64X64:
      return &x->sb64_partitioning;
    case BLOCK_SIZE_SB32X32:
      return &x->sb_partitioning[xd->sb_index];
    case BLOCK_SIZE_MB16X16:
      return &x->mb_partitioning[xd->sb_index][xd->mb_index];
735
736
    case BLOCK_SIZE_SB8X8:
      return &x->b_partitioning[xd->sb_index][xd->mb_index][xd->b_index];
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
    default:
      assert(0);
      return NULL;
  }
}

static void restore_context(VP9_COMP *cpi, int mi_row, int mi_col,
                            ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
                            ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
                            PARTITION_CONTEXT sa[8],
                            PARTITION_CONTEXT sl[8],
                            BLOCK_SIZE_TYPE bsize) {
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
  int p;
  int bwl = b_width_log2(bsize), bw = 1 << bwl;
  int bhl = b_height_log2(bsize), bh = 1 << bhl;
  int mwl = mi_width_log2(bsize), mw = 1 << mwl;
  int mhl = mi_height_log2(bsize), mh = 1 << mhl;
  for (p = 0; p < MAX_MB_PLANE; p++) {
    vpx_memcpy(cm->above_context[p] +
               ((mi_col * 2) >> xd->plane[p].subsampling_x),
               a + bw * p,
               sizeof(ENTROPY_CONTEXT) * bw >> xd->plane[p].subsampling_x);
    vpx_memcpy(cm->left_context[p] +
               ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
               l + bh * p,
               sizeof(ENTROPY_CONTEXT) * bh >> xd->plane[p].subsampling_y);
  }
  vpx_memcpy(cm->above_seg_context + mi_col, sa,
             sizeof(PARTITION_CONTEXT) * mw);
  vpx_memcpy(cm->left_seg_context + (mi_row & MI_MASK), sl,
             sizeof(PARTITION_CONTEXT) * mh);
}
Jim Bankoski's avatar
Jim Bankoski committed
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
static void save_context(VP9_COMP *cpi, int mi_row, int mi_col,
                          ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
                          ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
                          PARTITION_CONTEXT sa[8],
                          PARTITION_CONTEXT sl[8],
                          BLOCK_SIZE_TYPE bsize) {
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
  int p;
  int bwl = b_width_log2(bsize), bw = 1 << bwl;
  int bhl = b_height_log2(bsize), bh = 1 << bhl;
  int mwl = mi_width_log2(bsize), mw = 1 << mwl;
  int mhl = mi_height_log2(bsize), mh = 1 << mhl;

  // buffer the above/left context information of the block in search.
  for (p = 0; p < MAX_MB_PLANE; ++p) {
    vpx_memcpy(a + bw * p, cm->above_context[p] +
               (mi_col * 2 >> xd->plane[p].subsampling_x),
               sizeof(ENTROPY_CONTEXT) * bw >> xd->plane[p].subsampling_x);
    vpx_memcpy(l + bh * p, cm->left_context[p] +
               ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
               sizeof(ENTROPY_CONTEXT) * bh >> xd->plane[p].subsampling_y);
  }
  vpx_memcpy(sa, cm->above_seg_context + mi_col,
             sizeof(PARTITION_CONTEXT) * mw);
  vpx_memcpy(sl, cm->left_seg_context + (mi_row & MI_MASK),
             sizeof(PARTITION_CONTEXT) * mh);
}
801

802
803
804
805
806
807
static void encode_b(VP9_COMP *cpi, TOKENEXTRA **tp,
                     int mi_row, int mi_col, int output_enabled,
                     BLOCK_SIZE_TYPE bsize, int sub_index) {
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
John Koleszar's avatar
John Koleszar committed
808

809
810
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
    return;
John Koleszar's avatar
John Koleszar committed
811

812
  if (sub_index != -1)
813
    *(get_sb_index(xd, bsize)) = sub_index;
814
815
816
817

  if (bsize < BLOCK_SIZE_SB8X8)
    if (xd->ab_index > 0)
      return;
818
819
  set_offsets(cpi, mi_row, mi_col, bsize);
  update_state(cpi, get_block_context(x, bsize), bsize, output_enabled);
Jingning Han's avatar
Jingning Han committed
820
  encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize);
John Koleszar's avatar
John Koleszar committed
821

822
823
  if (output_enabled) {
    update_stats(cpi, mi_row, mi_col);
824

825
826
    (*tp)->token = EOSB_TOKEN;
    (*tp)++;
John Koleszar's avatar
John Koleszar committed
827
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
828
829
}

830
831
static void encode_sb(VP9_COMP *cpi, TOKENEXTRA **tp,
                      int mi_row, int mi_col, int output_enabled,
832
                      BLOCK_SIZE_TYPE bsize) {
833
834
835
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
836
  BLOCK_SIZE_TYPE c1 = BLOCK_SIZE_SB8X8;
837
  const int bsl = b_width_log2(bsize), bs = (1 << bsl) / 4;
838
  int bwl, bhl;
839
  int UNINITIALIZED_IS_SAFE(pl);
840

841
842
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
    return;
843

844
  c1 = BLOCK_SIZE_AB4X4;
845
  if (bsize >= BLOCK_SIZE_SB8X8) {
846
    set_partition_seg_context(cm, xd, mi_row, mi_col);
847
848
    pl = partition_plane_context(xd, bsize);
    c1 = *(get_sb_partitioning(x, bsize));
849
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
850

851
  bwl = b_width_log2(c1), bhl = b_height_log2(c1);
852

853
  if (bsl == bwl && bsl == bhl) {
854
    if (output_enabled && bsize >= BLOCK_SIZE_SB8X8)
855
        cpi->partition_count[pl][PARTITION_NONE]++;
856
857
858
859
860
861
862
863
864
865
866
867
868
    encode_b(cpi, tp, mi_row, mi_col, output_enabled, c1, -1);
  } else if (bsl == bhl && bsl > bwl) {
    if (output_enabled)
      cpi->partition_count[pl][PARTITION_VERT]++;
    encode_b(cpi, tp, mi_row, mi_col,      output_enabled, c1, 0);
    encode_b(cpi, tp, mi_row, mi_col + bs, output_enabled, c1, 1);
  } else if (bsl == bwl && bsl > bhl) {
    if (output_enabled)
      cpi->partition_count[pl][PARTITION_HORZ]++;
    encode_b(cpi, tp, mi_row,      mi_col, output_enabled, c1, 0);
    encode_b(cpi, tp, mi_row + bs, mi_col, output_enabled, c1, 1);
  } else {
    BLOCK_SIZE_TYPE subsize;
869
870
    int i;

871
    assert(bwl < bsl && bhl < bsl);
872
    subsize = get_subsize(bsize, PARTITION_SPLIT);
873

874
875
876
    if (output_enabled)
      cpi->partition_count[pl][PARTITION_SPLIT]++;

Ronald S. Bultje's avatar
Ronald S. Bultje committed
877
    for (i = 0; i < 4; i++) {
878
      const int x_idx = i & 1, y_idx = i >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
879

880
      *(get_sb_index(xd, subsize)) = i;
881
      encode_sb(cpi, tp, mi_row + y_idx * bs, mi_col + x_idx * bs,
882
                output_enabled, subsize);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
883
884
    }
  }
885

886
887
  if (bsize >= BLOCK_SIZE_SB8X8 &&
      (bsize == BLOCK_SIZE_SB8X8 || bsl == bwl || bsl == bhl)) {
888
    set_partition_seg_context(cm, xd, mi_row, mi_col);
889
    update_partition_context(xd, c1, bsize);
890
  }
Adrian Grange's avatar
Adrian Grange committed
891
}
John Koleszar's avatar
John Koleszar committed
892

Jim Bankoski's avatar
Jim Bankoski committed
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
static void set_partitioning(VP9_COMP *cpi, MODE_INFO *m,
                             BLOCK_SIZE_TYPE bsize) {
  VP9_COMMON *const cm = &cpi->common;
  const int mis = cm->mode_info_stride;
  int bsl = b_width_log2(bsize);
  int bs = (1 << bsl) / 2;  //
  int block_row, block_col;
  int row, col;

  // this test function sets the entire macroblock to the same bsize
  for (block_row = 0; block_row < 8; block_row += bs) {
    for (block_col = 0; block_col < 8; block_col += bs) {
      for (row = 0; row < bs; row++) {
        for (col = 0; col < bs; col++) {
          m[(block_row+row)*mis + block_col+col].mbmi.sb_type = bsize;
        }
      }
    }
  }
}

static void set_block_size(VP9_COMMON *const cm,
                           MODE_INFO *m, BLOCK_SIZE_TYPE bsize, int mis,
                           int mi_row, int mi_col) {
  int row, col;
  int bsl = b_width_log2(bsize);
  int bs = (1 << bsl) / 2;  //
  MODE_INFO *m2 = m + mi_row * mis + mi_col;
  for (row = 0; row