vp9_encodeframe.c 61.7 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"
13
#include "vp9/encoder/vp9_encodeframe.h"
14 15
#include "vp9/encoder/vp9_encodemb.h"
#include "vp9/encoder/vp9_encodemv.h"
16
#include "vp9/common/vp9_common.h"
17
#include "vp9/encoder/vp9_onyx_int.h"
18
#include "vp9/common/vp9_extend.h"
Yaowu Xu's avatar
Yaowu Xu committed
19
#include "vp9/common/vp9_entropy.h"
20 21
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_quant_common.h"
22 23
#include "vp9/encoder/vp9_segmentation.h"
#include "vp9/encoder/vp9_encodeintra.h"
24 25
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_invtrans.h"
26
#include "vp9/encoder/vp9_rdopt.h"
27 28 29
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_seg_common.h"
30
#include "vp9/common/vp9_tile_common.h"
31
#include "vp9/encoder/vp9_tokenize.h"
Yaowu Xu's avatar
Yaowu Xu committed
32
#include "./vp9_rtcd.h"
John Koleszar's avatar
John Koleszar committed
33
#include <stdio.h>
34
#include <math.h>
John Koleszar's avatar
John Koleszar committed
35 36
#include <limits.h>
#include "vpx_ports/vpx_timer.h"
37 38
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_mvref_common.h"
Paul Wilkins's avatar
Paul Wilkins committed
39

Yaowu Xu's avatar
Yaowu Xu committed
40
#define DBG_PRNT_SEGMAP 0
41

42
// #define ENC_DEBUG
43
#ifdef ENC_DEBUG
John Koleszar's avatar
John Koleszar committed
44
int enc_debug = 0;
45 46
#endif

Dmitry Kovalev's avatar
Dmitry Kovalev committed
47
void vp9_select_interp_filter_type(VP9_COMP *cpi);
48

49
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
50
                              int output_enabled, int mi_row, int mi_col,
51
                              BLOCK_SIZE_TYPE bsize);
52

53
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
54

John Koleszar's avatar
John Koleszar committed
55
#ifdef MODE_STATS
56
unsigned int inter_y_modes[MB_MODE_COUNT];
57
unsigned int inter_uv_modes[VP9_UV_MODES];
58
unsigned int inter_b_modes[B_MODE_COUNT];
59 60 61 62
unsigned int y_modes[VP9_YMODES];
unsigned int i8x8_modes[VP9_I8X8_MODES];
unsigned int uv_modes[VP9_UV_MODES];
unsigned int uv_modes_y[VP9_YMODES][VP9_UV_MODES];
63
unsigned int b_modes[B_MODE_COUNT];
John Koleszar's avatar
John Koleszar committed
64 65 66
#endif


67 68 69
/* 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
70
 *  vp9_activity_masking().
71
 */
72
#define VP9_ACTIVITY_AVG_MIN (64)
73 74 75 76 77 78

/* 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.
 */
79
static const uint8_t VP9_VAR_OFFS[16] = {
John Koleszar's avatar
John Koleszar committed
80
  128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
81 82
};

83 84

// Original activity measure from Tim T's code.
85
static unsigned int tt_activity_measure(VP9_COMP *cpi, MACROBLOCK *x) {
John Koleszar's avatar
John Koleszar committed
86 87 88 89 90 91 92 93 94
  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
95 96
  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
97
  act <<= 4;
John Koleszar's avatar
John Koleszar committed
98 99 100 101 102 103

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

  return act;
104 105
}

106
// Stub for alternative experimental activity measures.
107
static unsigned int alt_activity_measure(VP9_COMP *cpi,
John Koleszar's avatar
John Koleszar committed
108
                                         MACROBLOCK *x, int use_dc_pred) {
109
  return vp9_encode_intra(cpi, x, use_dc_pred);
110 111 112 113 114
}


// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
115
#define ALT_ACT_MEASURE 1
116
static unsigned int mb_activity_measure(VP9_COMP *cpi, MACROBLOCK *x,
John Koleszar's avatar
John Koleszar committed
117 118
                                        int mb_row, int mb_col) {
  unsigned int mb_activity;
119

John Koleszar's avatar
John Koleszar committed
120 121
  if (ALT_ACT_MEASURE) {
    int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
122

John Koleszar's avatar
John Koleszar committed
123 124 125 126 127 128
    // 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);
  }
129

130 131
  if (mb_activity < VP9_ACTIVITY_AVG_MIN)
    mb_activity = VP9_ACTIVITY_AVG_MIN;
132

John Koleszar's avatar
John Koleszar committed
133
  return mb_activity;
134 135 136
}

// Calculate an "average" mb activity value for the frame
137
#define ACT_MEDIAN 0
138
static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
139
#if ACT_MEDIAN
John Koleszar's avatar
John Koleszar committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
  // 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;
      }
    }
169

John Koleszar's avatar
John Koleszar committed
170 171 172
    // 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;
173

John Koleszar's avatar
John Koleszar committed
174
    cpi->activity_avg = median;
175

John Koleszar's avatar
John Koleszar committed
176 177
    vpx_free(sortlist);
  }
178
#else
John Koleszar's avatar
John Koleszar committed
179 180
  // Simple mean for now
  cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
181 182
#endif

183 184
  if (cpi->activity_avg < VP9_ACTIVITY_AVG_MIN)
    cpi->activity_avg = VP9_ACTIVITY_AVG_MIN;
185

John Koleszar's avatar
John Koleszar committed
186 187 188
  // Experimental code: return fixed value normalized for several clips
  if (ALT_ACT_MEASURE)
    cpi->activity_avg = 100000;
189 190
}

191
#define USE_ACT_INDEX   0
192
#define OUTPUT_NORM_ACT_STATS   0
193 194

#if USE_ACT_INDEX
195
// Calculate an activity index for each mb
196 197
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
  VP9_COMMON *const cm = &cpi->common;
John Koleszar's avatar
John Koleszar committed
198
  int mb_row, mb_col;
199

John Koleszar's avatar
John Koleszar committed
200 201 202
  int64_t act;
  int64_t a;
  int64_t b;
203 204

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
205 206
  FILE *f = fopen("norm_act.stt", "a");
  fprintf(f, "\n%12d\n", cpi->activity_avg);
207 208
#endif

John Koleszar's avatar
John Koleszar committed
209 210
  // Reset pointers to start of activity map
  x->mb_activity_ptr = cpi->mb_activity_map;
211

John Koleszar's avatar
John Koleszar committed
212 213 214 215 216 217
  // 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);
218

John Koleszar's avatar
John Koleszar committed
219 220 221
      // Calculate a normalized activity number
      a = act + 4 * cpi->activity_avg;
      b = 4 * act + cpi->activity_avg;
222

John Koleszar's avatar
John Koleszar committed
223 224 225 226
      if (b >= a)
        *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
      else
        *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
227 228

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
229
      fprintf(f, " %6d", *(x->mb_activity_ptr));
230
#endif
John Koleszar's avatar
John Koleszar committed
231 232 233
      // Increment activity map pointers
      x->mb_activity_ptr++;
    }
234 235

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
236
    fprintf(f, "\n");
237 238
#endif

John Koleszar's avatar
John Koleszar committed
239
  }
240 241

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
242
  fclose(f);
243 244 245
#endif

}
246
#endif
247 248 249

// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
250
static void build_activity_map(VP9_COMP *cpi) {
John Koleszar's avatar
John Koleszar committed
251
  MACROBLOCK *const x = &cpi->mb;
John Koleszar's avatar
John Koleszar committed
252
  MACROBLOCKD *xd = &x->e_mbd;
253
  VP9_COMMON *const cm = &cpi->common;
254

255
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
256 257 258
  YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
  int recon_yoffset;
  int recon_y_stride = new_yv12->y_stride;
259 260
#endif

John Koleszar's avatar
John Koleszar committed
261 262 263
  int mb_row, mb_col;
  unsigned int mb_activity;
  int64_t activity_sum = 0;
264

265 266
  x->mb_activity_ptr = cpi->mb_activity_map;

John Koleszar's avatar
John Koleszar committed
267 268
  // for each macroblock row in image
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
269
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
270 271 272
    // reset above block coeffs
    xd->up_available = (mb_row != 0);
    recon_yoffset = (mb_row * recon_y_stride * 16);
273
#endif
John Koleszar's avatar
John Koleszar committed
274 275
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
276
#if ALT_ACT_MEASURE
277
      xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
John Koleszar's avatar
John Koleszar committed
278 279
      xd->left_available = (mb_col != 0);
      recon_yoffset += 16;
280
#endif
281

John Koleszar's avatar
John Koleszar committed
282 283
      // measure activity
      mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col);
284

John Koleszar's avatar
John Koleszar committed
285 286
      // Keep frame sum
      activity_sum += mb_activity;
287

John Koleszar's avatar
John Koleszar committed
288 289
      // Store MB level activity details.
      *x->mb_activity_ptr = mb_activity;
290

John Koleszar's avatar
John Koleszar committed
291 292
      // Increment activity map pointer
      x->mb_activity_ptr++;
293

John Koleszar's avatar
John Koleszar committed
294
      // adjust to the next column of source macroblocks
John Koleszar's avatar
John Koleszar committed
295
      x->plane[0].src.buf += 16;
John Koleszar's avatar
John Koleszar committed
296
    }
297

298

John Koleszar's avatar
John Koleszar committed
299
    // adjust to the next row of mbs
John Koleszar's avatar
John Koleszar committed
300
    x->plane[0].src.buf += 16 * x->plane[0].src.stride - 16 * cm->mb_cols;
John Koleszar's avatar
John Koleszar committed
301
  }
302

John Koleszar's avatar
John Koleszar committed
303 304
  // Calculate an "average" MB activity
  calc_av_activity(cpi, activity_sum);
305

306
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
307 308
  // Calculate an activity index number of each mb
  calc_activity_index(cpi, x);
309 310
#endif

311 312
}

313
// Macroblock activity masking
314
void vp9_activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
315
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
316 317 318
  x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
319
#else
John Koleszar's avatar
John Koleszar committed
320 321 322
  int64_t a;
  int64_t b;
  int64_t act = *(x->mb_activity_ptr);
323

John Koleszar's avatar
John Koleszar committed
324 325 326
  // Apply the masking to the RD multiplier.
  a = act + (2 * cpi->activity_avg);
  b = (2 * act) + cpi->activity_avg;
327

John Koleszar's avatar
John Koleszar committed
328 329 330
  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);
331
#endif
332

John Koleszar's avatar
John Koleszar committed
333 334
  // Activity based Zbin adjustment
  adjust_act_zbin(cpi, x);
335
}
John Koleszar's avatar
John Koleszar committed
336

337
static void update_state(VP9_COMP *cpi,
338 339
                         PICK_MODE_CONTEXT *ctx,
                         BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
340 341
                         int output_enabled) {
  int i, x_idx, y;
342
  VP9_COMMON *const cm = &cpi->common;
343 344
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
John Koleszar's avatar
John Koleszar committed
345
  MODE_INFO *mi = &ctx->mic;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
346
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
John Koleszar's avatar
John Koleszar committed
347 348
  int mb_mode = mi->mbmi.mode;
  int mb_mode_index = ctx->best_mode_index;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
349
  const int mis = cpi->common.mode_info_stride;
350
  const int bh = 1 << mi_height_log2(bsize), bw = 1 << mi_width_log2(bsize);
Adrian Grange's avatar
Adrian Grange committed
351 352

#if CONFIG_DEBUG
John Koleszar's avatar
John Koleszar committed
353 354 355
  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
356 357
#endif

358
  assert(mi->mbmi.sb_type == bsize);
John Koleszar's avatar
John Koleszar committed
359 360
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
361 362
  for (y = 0; y < bh; y++) {
    for (x_idx = 0; x_idx < bw; x_idx++) {
363 364
      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
365 366 367 368
        MODE_INFO *mi_addr = xd->mode_info_context + x_idx + y * mis;

        vpx_memcpy(mi_addr, mi, sizeof(MODE_INFO));
      }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
369
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
370
  }
371
  if (bsize < BLOCK_SIZE_SB32X32) {
372 373
    if (bsize < BLOCK_SIZE_MB16X16)
      ctx->txfm_rd_diff[ALLOW_16X16] = ctx->txfm_rd_diff[ALLOW_8X8];
374
    ctx->txfm_rd_diff[ALLOW_32X32] = ctx->txfm_rd_diff[ALLOW_16X16];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
375
  }
Adrian Grange's avatar
Adrian Grange committed
376

Scott LaVarnway's avatar
Scott LaVarnway committed
377
  if (mb_mode == SPLITMV) {
John Koleszar's avatar
John Koleszar committed
378 379 380
    vpx_memcpy(x->partition_info, &ctx->partition_info,
               sizeof(PARTITION_INFO));

381
    mbmi->mv[0].as_int =
Jingning Han's avatar
Jingning Han committed
382
        x->partition_info->bmi[3].mv.as_int;
383
    mbmi->mv[1].as_int =
Jingning Han's avatar
Jingning Han committed
384
        x->partition_info->bmi[3].second_mv.as_int;
John Koleszar's avatar
John Koleszar committed
385 386
  }

387
  x->skip = ctx->skip;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
388 389 390
  if (!output_enabled)
    return;

391
  {
392
    int segment_id = mbmi->segment_id, ref_pred_flag;
Paul Wilkins's avatar
Paul Wilkins committed
393
    if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
394 395 396 397
      for (i = 0; i < NB_TXFM_MODES; i++) {
        cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i];
      }
    }
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414

    // 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]++;
    }
415 416
  }

John Koleszar's avatar
John Koleszar committed
417 418
  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
419
    // if (mb_mode == I4X4_PRED)
John Koleszar's avatar
John Koleszar committed
420 421 422 423 424 425
    //    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);
    //    }
426
#if CONFIG_INTERNAL_STATS
John Koleszar's avatar
John Koleszar committed
427 428 429 430 431 432 433 434 435 436 437
    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
438
      THR_B_PRED /*I4X4_PRED*/,
John Koleszar's avatar
John Koleszar committed
439 440
    };
    cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++;
441
#endif
John Koleszar's avatar
John Koleszar committed
442 443 444 445 446 447 448
  } 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
449

John Koleszar's avatar
John Koleszar committed
450 451 452 453 454 455 456 457
                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
458

John Koleszar's avatar
John Koleszar committed
459 460 461 462
            }
    */
    // Note how often each mode chosen as best
    cpi->mode_chosen_counts[mb_mode_index]++;
Deb Mukherjee's avatar
Deb Mukherjee committed
463 464 465 466 467 468 469 470 471 472 473 474
    if (mbmi->mode == SPLITMV || mbmi->mode == NEWMV) {
      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);
475
    }
Jingning Han's avatar
Jingning Han committed
476

477 478 479 480 481
    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
482
    }
483

484
    if (cpi->common.mcomp_filter_type == SWITCHABLE &&
485
        is_inter_mode(mbmi->mode)) {
486 487 488 489
      ++cpi->switchable_interp_count
          [vp9_get_pred_context(&cpi->common, xd, PRED_SWITCHABLE_INTERP)]
          [vp9_switchable_interp_map[mbmi->interp_filter]];
    }
Adrian Grange's avatar
Adrian Grange committed
490

491 492 493
    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
494
  }
Adrian Grange's avatar
Adrian Grange committed
495 496
}

497
static unsigned find_seg_id(uint8_t *buf, BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
498
                            int start_y, int height, int start_x, int width) {
499
  const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize);
500 501
  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
502 503 504 505 506 507 508 509 510 511 512 513 514
  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
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534
void vp9_setup_src_planes(MACROBLOCK *x,
                          const YV12_BUFFER_CONFIG *src,
                          int mb_row, int mb_col) {
  setup_pred_plane(&x->plane[0].src,
                   src->y_buffer, src->y_stride,
                   mb_row, mb_col, NULL,
                   x->e_mbd.plane[0].subsampling_x,
                   x->e_mbd.plane[0].subsampling_y);
  setup_pred_plane(&x->plane[1].src,
                   src->u_buffer, src->uv_stride,
                   mb_row, mb_col, NULL,
                   x->e_mbd.plane[1].subsampling_x,
                   x->e_mbd.plane[1].subsampling_y);
  setup_pred_plane(&x->plane[2].src,
                   src->v_buffer, src->uv_stride,
                   mb_row, mb_col, NULL,
                   x->e_mbd.plane[2].subsampling_x,
                   x->e_mbd.plane[2].subsampling_y);
}

Ronald S. Bultje's avatar
Ronald S. Bultje committed
535
static void set_offsets(VP9_COMP *cpi,
536
                        int mi_row, int mi_col, BLOCK_SIZE_TYPE bsize) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
537 538 539 540 541
  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;
542 543
  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
544 545
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
546
  const int idx_map = mb_row * cm->mb_cols + mb_col;
547
  int i;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
548 549

  // entropy context structures
550 551
  for (i = 0; i < MAX_MB_PLANE; i++) {
    xd->plane[i].above_context = cm->above_context[i] +
Jingning Han's avatar
Jingning Han committed
552
        (mi_col * 2 >>  xd->plane[i].subsampling_x);
553
    xd->plane[i].left_context = cm->left_context[i] +
Jingning Han's avatar
Jingning Han committed
554
        (((mi_row * 2) & 15) >> xd->plane[i].subsampling_y);
555
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
556

557
  // partition contexts
558
  set_partition_seg_context(cm, xd, mi_row, mi_col);
559

Ronald S. Bultje's avatar
Ronald S. Bultje committed
560 561 562 563 564 565 566 567 568 569 570
  // 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;
  xd->prev_mode_info_context = cm->prev_mi + idx_str;

  // Set up destination pointers
571
  setup_dst_planes(xd, &cm->yv12_fb[dst_fb_idx], mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
572 573 574

  /* Set up limit values for MV components to prevent them from
   * extending beyond the UMV borders assuming 16x16 block size */
575 576 577 578 579 580
  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
581 582

  // Set up distance of MB to edge of frame in 1/8th pel units
583 584
  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
585 586

  /* set up source buffers */
587
  vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
588 589 590 591 592 593 594

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

  /* segment ID */
  if (xd->segmentation_enabled) {
595 596 597 598 599
    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);

600
    assert(mbmi->segment_id <= (MAX_MB_SEGMENTS-1));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
601 602 603 604 605 606 607 608 609 610 611 612 613 614 615
    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);
616
      const int tile_progress =
Jingning Han's avatar
Jingning Han committed
617
          cm->cur_tile_mi_col_start * cm->mb_rows >> 1;
618
      const int mb_cols =
Jingning Han's avatar
Jingning Han committed
619
          (cm->cur_tile_mi_col_end - cm->cur_tile_mi_col_start) >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
620 621

      cpi->seg0_progress =
622
          ((y * mb_cols + x * 4 + p32 + p16 + tile_progress) << 16) / cm->MBs;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
623 624 625 626 627 628
    }
  } else {
    mbmi->segment_id = 0;
  }
}

629
static void pick_sb_modes(VP9_COMP *cpi, int mi_row, int mi_col,
630 631
                          TOKENEXTRA **tp, int *totalrate, int *totaldist,
                          BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) {
632 633 634
  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
635

636 637 638 639 640 641
#if CONFIG_AB4X4
  if (bsize < BLOCK_SIZE_SB8X8)
    if (xd->ab_index != 0)
      return;
#endif

642
  set_offsets(cpi, mi_row, mi_col, bsize);
643
  xd->mode_info_context->mbmi.sb_type = bsize;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
644
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
645
    vp9_activity_masking(cpi, x);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
646 647 648

  /* 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
649
  if (cm->frame_type == KEY_FRAME) {
650
    vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
651
  } else {
652
    vp9_rd_pick_inter_mode_sb(cpi, x, mi_row, mi_col, totalrate, totaldist,
653
                              bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
654 655
  }
}
Adrian Grange's avatar
Adrian Grange committed
656

657
static void update_stats(VP9_COMP *cpi, int mi_row, int mi_col) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
658 659 660 661 662
  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
663

Ronald S. Bultje's avatar
Ronald S. Bultje committed
664 665 666
  if (cm->frame_type == KEY_FRAME) {
#ifdef MODE_STATS
    y_modes[mbmi->mode]++;
Adrian Grange's avatar
Adrian Grange committed
667
#endif
Ronald S. Bultje's avatar
Ronald S. Bultje committed
668 669
  } else {
    int segment_id, seg_ref_active;
John Koleszar's avatar
John Koleszar committed
670

Ronald S. Bultje's avatar
Ronald S. Bultje committed
671 672
    if (mbmi->ref_frame) {
      int pred_context = vp9_get_pred_context(cm, xd, PRED_COMP);
673

Ronald S. Bultje's avatar
Ronald S. Bultje committed
674 675 676 677
      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
678
    }
Adrian Grange's avatar
Adrian Grange committed
679

Ronald S. Bultje's avatar
Ronald S. Bultje committed
680 681
#ifdef MODE_STATS
    inter_y_modes[mbmi->mode]++;
Adrian Grange's avatar
Adrian Grange committed
682

Ronald S. Bultje's avatar
Ronald S. Bultje committed
683 684
    if (mbmi->mode == SPLITMV) {
      int b;
John Koleszar's avatar
John Koleszar committed
685

Ronald S. Bultje's avatar
Ronald S. Bultje committed
686 687 688 689
      for (b = 0; b < x->partition_info->count; b++) {
        inter_b_modes[x->partition_info->bmi[b].mode]++;
      }
    }
690
#endif
691

Ronald S. Bultje's avatar
Ronald S. Bultje committed
692 693 694 695 696 697 698 699 700 701 702 703 704 705
    // 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
706
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
707 708 709 710 711
    // 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
712

713 714 715 716
static void set_block_index(MACROBLOCKD *xd, int idx,
                            BLOCK_SIZE_TYPE bsize) {
  if (bsize >= BLOCK_SIZE_SB32X32) {
    xd->sb_index = idx;
717
  } else if (bsize >= BLOCK_SIZE_MB16X16) {
718
    xd->mb_index = idx;
719
  } else {
720 721 722 723 724 725
#if CONFIG_AB4X4
    if (bsize >= BLOCK_SIZE_SB8X8)
      xd->b_index = idx;
    else
      xd->ab_index = idx;
#else
726
    xd->b_index = idx;
727
#endif
728 729
  }
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
730

731 732 733
// 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.
734 735 736
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
737

738 739 740 741 742 743 744 745 746 747 748 749 750 751 752
  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];
753 754 755 756 757
    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:
758 759 760 761 762 763 764 765 766
      return &x->sb8x8_context[xd->sb_index][xd->mb_index][xd->b_index];
#if CONFIG_AB4X4
    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];
#endif
767 768 769 770 771
    default:
      assert(0);
      return NULL;
  }
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
772

773 774 775 776 777 778 779 780 781 782
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];
783 784 785 786
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB8X8:
      return &x->b_partitioning[xd->sb_index][xd->mb_index][xd->b_index];
#endif
787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822
    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);
}

823 824 825 826 827 828
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
829

830 831
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
    return;
John Koleszar's avatar
John Koleszar committed
832

833 834 835 836
  if (sub_index != -1)
    set_block_index(xd, sub_index, bsize);
  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
837
  encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize);
John Koleszar's avatar
John Koleszar committed
838

839 840
  if (output_enabled) {
    update_stats(cpi, mi_row, mi_col);
841

842 843
    (*tp)->token = EOSB_TOKEN;
    (*tp)++;
John Koleszar's avatar
John Koleszar committed
844
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
845 846
}

847 848
static void encode_sb(VP9_COMP *cpi, TOKENEXTRA **tp,
                      int mi_row, int mi_col, int output_enabled,
849
                      BLOCK_SIZE_TYPE bsize) {
850 851 852
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
853
  BLOCK_SIZE_TYPE c1 = BLOCK_SIZE_SB8X8;
854
  const int bsl = mi_width_log2(bsize), bs = (1 << bsl) / 2;
855
  int bwl, bhl;
856
  int UNINITIALIZED_IS_SAFE(pl);
857

858 859
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
    return;
860

861 862 863 864 865 866 867
#if CONFIG_AB4X4
  c1 = BLOCK_SIZE_AB4X4;
  if (bsize >= BLOCK_SIZE_SB8X8)
#else
  if (bsize > BLOCK_SIZE_SB8X8)
#endif
  {