vp9_encodeframe.c 76.2 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
#include "vp9/encoder/vp9_segmentation.h"
23
#include "vp9/common/vp9_setupintrarecon.h"
24
#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

Ronald S. Bultje's avatar
Ronald S. Bultje committed
50 51
static void encode_macroblock(VP9_COMP *cpi, TOKENEXTRA **t,
                              int output_enabled, int mb_row, int mb_col);
52

53 54 55
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
                              int output_enabled, int mb_row, int mb_col,
                              BLOCK_SIZE_TYPE bsize);
56

57
static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
58

John Koleszar's avatar
John Koleszar committed
59
#ifdef MODE_STATS
60
unsigned int inter_y_modes[MB_MODE_COUNT];
61
unsigned int inter_uv_modes[VP9_UV_MODES];
62
unsigned int inter_b_modes[B_MODE_COUNT];
63 64 65 66
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];
67
unsigned int b_modes[B_MODE_COUNT];
John Koleszar's avatar
John Koleszar committed
68 69 70
#endif


71 72 73
/* 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
74
 *  vp9_activity_masking().
75
 */
76
#define VP9_ACTIVITY_AVG_MIN (64)
77 78 79 80 81 82

/* 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.
 */
83
static const uint8_t VP9_VAR_OFFS[16] = {
John Koleszar's avatar
John Koleszar committed
84
  128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
85 86
};

87 88

// Original activity measure from Tim T's code.
89
static unsigned int tt_activity_measure(VP9_COMP *cpi, MACROBLOCK *x) {
John Koleszar's avatar
John Koleszar committed
90 91 92 93 94 95 96 97 98
  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.).
   */
99
  act = vp9_variance16x16(x->src.y_buffer, x->src.y_stride, VP9_VAR_OFFS, 0,
100
                          &sse);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
101
  act <<= 4;
John Koleszar's avatar
John Koleszar committed
102 103 104 105 106 107

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

  return act;
108 109
}

110
// Stub for alternative experimental activity measures.
111
static unsigned int alt_activity_measure(VP9_COMP *cpi,
John Koleszar's avatar
John Koleszar committed
112
                                         MACROBLOCK *x, int use_dc_pred) {
113
  return vp9_encode_intra(cpi, x, use_dc_pred);
114 115 116 117 118
}


// Measure the activity of the current macroblock
// What we measure here is TBD so abstracted to this function
119
#define ALT_ACT_MEASURE 1
120
static unsigned int mb_activity_measure(VP9_COMP *cpi, MACROBLOCK *x,
John Koleszar's avatar
John Koleszar committed
121 122
                                        int mb_row, int mb_col) {
  unsigned int mb_activity;
123

John Koleszar's avatar
John Koleszar committed
124 125
  if (ALT_ACT_MEASURE) {
    int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
126

John Koleszar's avatar
John Koleszar committed
127 128 129 130 131 132
    // 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);
  }
133

134 135
  if (mb_activity < VP9_ACTIVITY_AVG_MIN)
    mb_activity = VP9_ACTIVITY_AVG_MIN;
136

John Koleszar's avatar
John Koleszar committed
137
  return mb_activity;
138 139 140
}

// Calculate an "average" mb activity value for the frame
141
#define ACT_MEDIAN 0
142
static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
143
#if ACT_MEDIAN
John Koleszar's avatar
John Koleszar committed
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172
  // 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;
      }
    }
173

John Koleszar's avatar
John Koleszar committed
174 175 176
    // 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;
177

John Koleszar's avatar
John Koleszar committed
178
    cpi->activity_avg = median;
179

John Koleszar's avatar
John Koleszar committed
180 181
    vpx_free(sortlist);
  }
182
#else
John Koleszar's avatar
John Koleszar committed
183 184
  // Simple mean for now
  cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
185 186
#endif

187 188
  if (cpi->activity_avg < VP9_ACTIVITY_AVG_MIN)
    cpi->activity_avg = VP9_ACTIVITY_AVG_MIN;
189

John Koleszar's avatar
John Koleszar committed
190 191 192
  // Experimental code: return fixed value normalized for several clips
  if (ALT_ACT_MEASURE)
    cpi->activity_avg = 100000;
193 194
}

195
#define USE_ACT_INDEX   0
196
#define OUTPUT_NORM_ACT_STATS   0
197 198

#if USE_ACT_INDEX
199
// Calculate an activity index for each mb
200 201
static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
  VP9_COMMON *const cm = &cpi->common;
John Koleszar's avatar
John Koleszar committed
202
  int mb_row, mb_col;
203

John Koleszar's avatar
John Koleszar committed
204 205 206
  int64_t act;
  int64_t a;
  int64_t b;
207 208

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
209 210
  FILE *f = fopen("norm_act.stt", "a");
  fprintf(f, "\n%12d\n", cpi->activity_avg);
211 212
#endif

John Koleszar's avatar
John Koleszar committed
213 214
  // Reset pointers to start of activity map
  x->mb_activity_ptr = cpi->mb_activity_map;
215

John Koleszar's avatar
John Koleszar committed
216 217 218 219 220 221
  // 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);
222

John Koleszar's avatar
John Koleszar committed
223 224 225
      // Calculate a normalized activity number
      a = act + 4 * cpi->activity_avg;
      b = 4 * act + cpi->activity_avg;
226

John Koleszar's avatar
John Koleszar committed
227 228 229 230
      if (b >= a)
        *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
      else
        *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
231 232

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
233
      fprintf(f, " %6d", *(x->mb_activity_ptr));
234
#endif
John Koleszar's avatar
John Koleszar committed
235 236 237
      // Increment activity map pointers
      x->mb_activity_ptr++;
    }
238 239

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
240
    fprintf(f, "\n");
241 242
#endif

John Koleszar's avatar
John Koleszar committed
243
  }
244 245

#if OUTPUT_NORM_ACT_STATS
John Koleszar's avatar
John Koleszar committed
246
  fclose(f);
247 248 249
#endif

}
250
#endif
251 252 253

// Loop through all MBs. Note activity of each, average activity and
// calculate a normalized activity for each
254
static void build_activity_map(VP9_COMP *cpi) {
John Koleszar's avatar
John Koleszar committed
255
  MACROBLOCK *const x = &cpi->mb;
John Koleszar's avatar
John Koleszar committed
256
  MACROBLOCKD *xd = &x->e_mbd;
257
  VP9_COMMON *const cm = &cpi->common;
258

259
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
260 261 262
  YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
  int recon_yoffset;
  int recon_y_stride = new_yv12->y_stride;
263 264
#endif

John Koleszar's avatar
John Koleszar committed
265 266 267
  int mb_row, mb_col;
  unsigned int mb_activity;
  int64_t activity_sum = 0;
268

269 270
  x->mb_activity_ptr = cpi->mb_activity_map;

John Koleszar's avatar
John Koleszar committed
271 272
  // for each macroblock row in image
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
273
#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
274 275 276
    // reset above block coeffs
    xd->up_available = (mb_row != 0);
    recon_yoffset = (mb_row * recon_y_stride * 16);
277
#endif
John Koleszar's avatar
John Koleszar committed
278 279
    // for each macroblock col in image
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
280
#if ALT_ACT_MEASURE
281
      xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
John Koleszar's avatar
John Koleszar committed
282 283
      xd->left_available = (mb_col != 0);
      recon_yoffset += 16;
284
#endif
285

John Koleszar's avatar
John Koleszar committed
286 287
      // measure activity
      mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col);
288

John Koleszar's avatar
John Koleszar committed
289 290
      // Keep frame sum
      activity_sum += mb_activity;
291

John Koleszar's avatar
John Koleszar committed
292 293
      // Store MB level activity details.
      *x->mb_activity_ptr = mb_activity;
294

John Koleszar's avatar
John Koleszar committed
295 296
      // Increment activity map pointer
      x->mb_activity_ptr++;
297

John Koleszar's avatar
John Koleszar committed
298 299 300
      // adjust to the next column of source macroblocks
      x->src.y_buffer += 16;
    }
301

302

John Koleszar's avatar
John Koleszar committed
303 304
    // adjust to the next row of mbs
    x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
305 306

#if ALT_ACT_MEASURE
John Koleszar's avatar
John Koleszar committed
307
    // extend the recon for intra prediction
308 309
    vp9_extend_mb_row(new_yv12, xd->plane[0].dst.buf + 16,
                      xd->plane[1].dst.buf + 8, xd->plane[2].dst.buf + 8);
310 311
#endif

John Koleszar's avatar
John Koleszar committed
312
  }
313

John Koleszar's avatar
John Koleszar committed
314 315
  // Calculate an "average" MB activity
  calc_av_activity(cpi, activity_sum);
316

317
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
318 319
  // Calculate an activity index number of each mb
  calc_activity_index(cpi, x);
320 321
#endif

322 323
}

324
// Macroblock activity masking
325
void vp9_activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
326
#if USE_ACT_INDEX
John Koleszar's avatar
John Koleszar committed
327 328 329
  x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
  x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
  x->errorperbit += (x->errorperbit == 0);
330
#else
John Koleszar's avatar
John Koleszar committed
331 332 333
  int64_t a;
  int64_t b;
  int64_t act = *(x->mb_activity_ptr);
334

John Koleszar's avatar
John Koleszar committed
335 336 337
  // Apply the masking to the RD multiplier.
  a = act + (2 * cpi->activity_avg);
  b = (2 * act) + cpi->activity_avg;
338

John Koleszar's avatar
John Koleszar committed
339 340 341
  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);
342
#endif
343

John Koleszar's avatar
John Koleszar committed
344 345
  // Activity based Zbin adjustment
  adjust_act_zbin(cpi, x);
346
}
John Koleszar's avatar
John Koleszar committed
347

348
static void update_state(VP9_COMP *cpi,
349 350
                         PICK_MODE_CONTEXT *ctx,
                         BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
351 352
                         int output_enabled) {
  int i, x_idx, y;
353
  VP9_COMMON *const cm = &cpi->common;
354 355
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
John Koleszar's avatar
John Koleszar committed
356
  MODE_INFO *mi = &ctx->mic;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
357
  MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
John Koleszar's avatar
John Koleszar committed
358 359
  int mb_mode = mi->mbmi.mode;
  int mb_mode_index = ctx->best_mode_index;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
360
  const int mis = cpi->common.mode_info_stride;
361
  const int bh = 1 << mb_height_log2(bsize), bw = 1 << mb_width_log2(bsize);
Adrian Grange's avatar
Adrian Grange committed
362 363

#if CONFIG_DEBUG
John Koleszar's avatar
John Koleszar committed
364 365 366
  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
367
#endif
368
  assert(mi->mbmi.sb_type == bsize);
Adrian Grange's avatar
Adrian Grange committed
369

John Koleszar's avatar
John Koleszar committed
370 371
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
372 373 374 375
  for (y = 0; y < bh; y++) {
    for (x_idx = 0; x_idx < bw; x_idx++) {
      if ((xd->mb_to_right_edge >> 7) + bw > x_idx &&
          (xd->mb_to_bottom_edge >> 7) + bh > y) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
376 377 378 379
        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
380
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
381
  }
382
  if (bsize < BLOCK_SIZE_SB32X32) {
383
    ctx->txfm_rd_diff[ALLOW_32X32] = ctx->txfm_rd_diff[ALLOW_16X16];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
384
  }
Adrian Grange's avatar
Adrian Grange committed
385

Yaowu Xu's avatar
Yaowu Xu committed
386
  if (mb_mode == I4X4_PRED) {
John Koleszar's avatar
John Koleszar committed
387 388
    for (i = 0; i < 16; i++) {
      xd->block[i].bmi.as_mode = xd->mode_info_context->bmi[i].as_mode;
Frank Galligan's avatar
Frank Galligan committed
389
      assert(xd->block[i].bmi.as_mode.first < B_MODE_COUNT);
Adrian Grange's avatar
Adrian Grange committed
390
    }
John Koleszar's avatar
John Koleszar committed
391 392 393
  } else if (mb_mode == I8X8_PRED) {
    for (i = 0; i < 16; i++) {
      xd->block[i].bmi = xd->mode_info_context->bmi[i];
Adrian Grange's avatar
Adrian Grange committed
394
    }
John Koleszar's avatar
John Koleszar committed
395 396 397 398
  } else if (mb_mode == SPLITMV) {
    vpx_memcpy(x->partition_info, &ctx->partition_info,
               sizeof(PARTITION_INFO));

399 400
    mbmi->mv[0].as_int = x->partition_info->bmi[15].mv.as_int;
    mbmi->mv[1].as_int = x->partition_info->bmi[15].second_mv.as_int;
John Koleszar's avatar
John Koleszar committed
401 402
  }

403
  x->skip = ctx->skip;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
404 405 406
  if (!output_enabled)
    return;

407
  {
408
    int segment_id = mbmi->segment_id, ref_pred_flag;
Paul Wilkins's avatar
Paul Wilkins committed
409
    if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
410 411 412 413
      for (i = 0; i < NB_TXFM_MODES; i++) {
        cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i];
      }
    }
414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430

    // 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]++;
    }
431 432
  }

John Koleszar's avatar
John Koleszar committed
433 434
  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
435
    // if (mb_mode == I4X4_PRED)
John Koleszar's avatar
John Koleszar committed
436 437 438 439 440 441
    //    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);
    //    }
442
#if CONFIG_INTERNAL_STATS
John Koleszar's avatar
John Koleszar committed
443 444 445 446 447 448 449 450 451 452 453 454
    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*/,
      THR_I8X8_PRED /*I8X8_PRED*/,
Yaowu Xu's avatar
Yaowu Xu committed
455
      THR_B_PRED /*I4X4_PRED*/,
John Koleszar's avatar
John Koleszar committed
456 457
    };
    cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++;
458
#endif
John Koleszar's avatar
John Koleszar committed
459 460 461 462 463 464 465
  } 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
466

John Koleszar's avatar
John Koleszar committed
467 468 469 470 471 472 473 474
                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
475

John Koleszar's avatar
John Koleszar committed
476 477 478 479
            }
    */
    // Note how often each mode chosen as best
    cpi->mode_chosen_counts[mb_mode_index]++;
Deb Mukherjee's avatar
Deb Mukherjee committed
480 481 482 483 484 485 486 487 488 489 490 491 492
    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);
    }
493 494 495 496 497 498 499 500 501 502 503 504 505
#if CONFIG_COMP_INTERINTRA_PRED
    if (mbmi->mode >= NEARESTMV && mbmi->mode < SPLITMV &&
        mbmi->second_ref_frame <= INTRA_FRAME) {
      if (mbmi->second_ref_frame == INTRA_FRAME) {
        ++cpi->interintra_count[1];
        ++cpi->ymode_count[mbmi->interintra_mode];
#if SEPARATE_INTERINTRA_UV
        ++cpi->y_uv_mode_count[mbmi->interintra_mode][mbmi->interintra_uv_mode];
#endif
      } else {
        ++cpi->interintra_count[0];
      }
    }
506
#endif
507 508 509 510 511 512 513
    if (cpi->common.mcomp_filter_type == SWITCHABLE &&
        mbmi->mode >= NEARESTMV &&
        mbmi->mode <= SPLITMV) {
      ++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
514

515 516 517
    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
518
  }
Adrian Grange's avatar
Adrian Grange committed
519 520
}

521
static unsigned find_seg_id(uint8_t *buf, BLOCK_SIZE_TYPE bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
522
                            int start_y, int height, int start_x, int width) {
523 524 525
  const int bw = 1 << mb_width_log2(bsize), bh = 1 << mb_height_log2(bsize);
  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
526 527 528 529 530 531 532 533 534 535 536 537 538 539
  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;
}

static void set_offsets(VP9_COMP *cpi,
540
                        int mb_row, int mb_col, BLOCK_SIZE_TYPE bsize) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
541 542 543 544 545 546 547
  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;
  const int idx_map = mb_row * cm->mb_cols + mb_col;
  const int idx_str = xd->mode_info_stride * mb_row + mb_col;
548
  const int bw = 1 << mb_width_log2(bsize), bh = 1 << mb_height_log2(bsize);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564

  // entropy context structures
  xd->above_context = cm->above_context + mb_col;
  xd->left_context  = cm->left_context + (mb_row & 3);

  // 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
565
  setup_dst_planes(xd, &cm->yv12_fb[dst_fb_idx], mb_row, mb_col);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
566 567 568 569 570 571

  /* Set up limit values for MV components to prevent them from
   * extending beyond the UMV borders assuming 16x16 block size */
  x->mv_row_min = -((mb_row * 16) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
  x->mv_col_min = -((mb_col * 16) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
  x->mv_row_max = ((cm->mb_rows - mb_row) * 16 +
572
                   (VP9BORDERINPIXELS - 16 * bh - VP9_INTERP_EXTEND));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
573
  x->mv_col_max = ((cm->mb_cols - mb_col) * 16 +
574
                   (VP9BORDERINPIXELS - 16 * bw - VP9_INTERP_EXTEND));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
575 576

  // Set up distance of MB to edge of frame in 1/8th pel units
577 578 579
  assert(!(mb_col & (bw - 1)) && !(mb_row & (bh - 1)));
  set_mb_row(cm, xd, mb_row, bh);
  set_mb_col(cm, xd, mb_col, bw);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
580 581

  /* set up source buffers */
582
  setup_pred_block(&x->src, cpi->Source, mb_row, mb_col, NULL, NULL);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
583 584 585 586 587 588 589 590

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

  /* segment ID */
  if (xd->segmentation_enabled) {
    if (xd->update_mb_segmentation_map) {
591
      mbmi->segment_id = find_seg_id(cpi->segmentation_map, bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
592 593
                                     mb_row, cm->mb_rows, mb_col, cm->mb_cols);
    } else {
594
      mbmi->segment_id = find_seg_id(cm->last_frame_seg_map, bsize,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
595 596
                                     mb_row, cm->mb_rows, mb_col, cm->mb_cols);
    }
597
    assert(mbmi->segment_id <= (MAX_MB_SEGMENTS-1));
Ronald S. Bultje's avatar
Ronald S. Bultje committed
598 599 600 601 602 603 604 605 606 607 608 609 610 611 612
    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);
613 614
      const int tile_progress = cm->cur_tile_mb_col_start * cm->mb_rows;
      const int mb_cols = cm->cur_tile_mb_col_end - cm->cur_tile_mb_col_start;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
615 616

      cpi->seg0_progress =
617
          ((y * mb_cols + x * 4 + p32 + p16 + tile_progress) << 16) / cm->MBs;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
618 619 620 621 622 623
    }
  } else {
    mbmi->segment_id = 0;
  }
}

624 625 626 627 628 629
static int pick_mb_mode(VP9_COMP *cpi,
                        int mb_row,
                        int mb_col,
                        TOKENEXTRA **tp,
                        int *totalrate,
                        int *totaldist) {
630 631 632
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
633
  int splitmodes_used = 0;
634
  MB_MODE_INFO *mbmi;
635

636
  set_offsets(cpi, mb_row, mb_col, BLOCK_SIZE_MB16X16);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
637

638 639
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
    vp9_activity_masking(cpi, x);
John Koleszar's avatar
John Koleszar committed
640

641 642
  mbmi = &xd->mode_info_context->mbmi;
  mbmi->sb_type = BLOCK_SIZE_MB16X16;
John Koleszar's avatar
John Koleszar committed
643

644 645 646 647
  // Find best coding mode & reconstruct the MB so it is available
  // as a predictor for MBs that follow in the SB
  if (cm->frame_type == KEY_FRAME) {
    vp9_rd_pick_intra_mode(cpi, x, totalrate, totaldist);
648

649 650 651 652 653 654 655
    // Save the coding context
    vpx_memcpy(&x->mb_context[xd->sb_index][xd->mb_index].mic,
               xd->mode_info_context, sizeof(MODE_INFO));
  } else {
    vp9_pick_mode_inter_macroblock(cpi, x, mb_row, mb_col,
                                   totalrate, totaldist);
    splitmodes_used += (mbmi->mode == SPLITMV);
John Koleszar's avatar
John Koleszar committed
656

657
    if (cpi->mb.e_mbd.segmentation_enabled && mbmi->segment_id == 0) {
658
      cpi->seg0_idx++;
John Koleszar's avatar
John Koleszar committed
659 660 661
    }
  }

662
  return splitmodes_used;
Adrian Grange's avatar
Adrian Grange committed
663 664
}

665 666 667
static void pick_sb_modes(VP9_COMP *cpi, int mb_row, int mb_col,
                          TOKENEXTRA **tp, int *totalrate, int *totaldist,
                          BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) {
668 669 670
  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
671

672 673
  set_offsets(cpi, mb_row, mb_col, bsize);
  xd->mode_info_context->mbmi.sb_type = bsize;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
674
  if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
675
    vp9_activity_masking(cpi, x);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
676 677 678

  /* 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
679
  if (cm->frame_type == KEY_FRAME) {
680
    vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
681
  } else {
682
    vp9_rd_pick_inter_mode_sb(cpi, x, mb_row, mb_col, totalrate, totaldist,
683
                              bsize, ctx);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
684 685
  }
}
Adrian Grange's avatar
Adrian Grange committed
686

687
static void update_stats(VP9_COMP *cpi, int mb_row, int mb_col) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
688 689 690 691 692
  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
693

Ronald S. Bultje's avatar
Ronald S. Bultje committed
694 695 696
  if (cm->frame_type == KEY_FRAME) {
#ifdef MODE_STATS
    y_modes[mbmi->mode]++;
Adrian Grange's avatar
Adrian Grange committed
697
#endif
Ronald S. Bultje's avatar
Ronald S. Bultje committed
698 699
  } else {
    int segment_id, seg_ref_active;
John Koleszar's avatar
John Koleszar committed
700

Ronald S. Bultje's avatar
Ronald S. Bultje committed
701 702
    if (mbmi->ref_frame) {
      int pred_context = vp9_get_pred_context(cm, xd, PRED_COMP);
703

Ronald S. Bultje's avatar
Ronald S. Bultje committed
704 705 706 707
      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
708
    }
Adrian Grange's avatar
Adrian Grange committed
709

Ronald S. Bultje's avatar
Ronald S. Bultje committed
710 711
#ifdef MODE_STATS
    inter_y_modes[mbmi->mode]++;
Adrian Grange's avatar
Adrian Grange committed
712

Ronald S. Bultje's avatar
Ronald S. Bultje committed
713 714
    if (mbmi->mode == SPLITMV) {
      int b;
John Koleszar's avatar
John Koleszar committed
715

Ronald S. Bultje's avatar
Ronald S. Bultje committed
716 717 718 719
      for (b = 0; b < x->partition_info->count; b++) {
        inter_b_modes[x->partition_info->bmi[b].mode]++;
      }
    }
720
#endif
721

Ronald S. Bultje's avatar
Ronald S. Bultje committed
722 723 724 725 726 727 728 729 730 731 732 733 734 735
    // 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
736
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
737 738 739 740 741
    // 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
742

Ronald S. Bultje's avatar
Ronald S. Bultje committed
743 744 745 746
static void encode_sb(VP9_COMP *cpi,
                      int mb_row,
                      int mb_col,
                      int output_enabled,
747
                      TOKENEXTRA **tp, BLOCK_SIZE_TYPE is_sb) {
748 749 750
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
751
  BLOCK_SIZE_TYPE bsize = BLOCK_SIZE_SB32X32;
John Koleszar's avatar
John Koleszar committed
752

753
  if (is_sb == BLOCK_SIZE_SB32X32) {
754
    set_offsets(cpi, mb_row, mb_col, bsize);
755
    update_state(cpi, &x->sb32_context[xd->sb_index],
756
                 bsize, output_enabled);
757

758
    encode_superblock(cpi, tp,
759
                      output_enabled, mb_row, mb_col, bsize);
760 761
    if (output_enabled) {
      update_stats(cpi, mb_row, mb_col);
762
      cpi->partition_count[partition_plane(bsize)][PARTITION_NONE]++;
763

764
      (*tp)->token = EOSB_TOKEN;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
765 766
      (*tp)++;
    }
767 768 769 770 771 772 773 774 775 776 777 778 779 780 781
#if CONFIG_SBSEGMENT
  } else if (is_sb == BLOCK_SIZE_SB16X32) {
    int i;

    if (output_enabled)
      cpi->partition_count[partition_plane(bsize)][PARTITION_VERT]++;
    for (i = 0; i < 2 && mb_col + i != cm->mb_cols; i++) {
      set_offsets(cpi, mb_row, mb_col + i, BLOCK_SIZE_SB16X32);
      update_state(cpi, &x->sb16x32_context[xd->sb_index][i],
                   BLOCK_SIZE_SB16X32, output_enabled);
      encode_superblock(cpi, tp,
                        output_enabled, mb_row, mb_col + i, BLOCK_SIZE_SB16X32);
      if (output_enabled) {
        update_stats(cpi, mb_row, mb_col + i);

782
        (*tp)->token = EOSB_TOKEN;
783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799
        (*tp)++;
      }
    }
  } else if (is_sb == BLOCK_SIZE_SB32X16) {
    int i;

    if (output_enabled)
      cpi->partition_count[partition_plane(bsize)][PARTITION_HORZ]++;
    for (i = 0; i < 2 && mb_row + i != cm->mb_rows; i++) {
      set_offsets(cpi, mb_row + i, mb_col, BLOCK_SIZE_SB32X16);
      update_state(cpi, &x->sb32x16_context[xd->sb_index][i],
                   BLOCK_SIZE_SB32X16, output_enabled);
      encode_superblock(cpi, tp,
                        output_enabled, mb_row + i, mb_col, BLOCK_SIZE_SB32X16);
      if (output_enabled) {
        update_stats(cpi, mb_row + i, mb_col);

800
        (*tp)->token = EOSB_TOKEN;
801 802 803 804
        (*tp)++;
      }
    }
#endif
805
  } else {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
806
    int i;
807 808
    if (output_enabled)
      cpi->partition_count[partition_plane(bsize)][PARTITION_SPLIT]++;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
809

Ronald S. Bultje's avatar
Ronald S. Bultje committed
810 811
    for (i = 0; i < 4; i++) {
      const int x_idx = i & 1, y_idx = i >> 1;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
812

Ronald S. Bultje's avatar
Ronald S. Bultje committed
813 814 815
      if ((mb_row + y_idx >= cm->mb_rows) || (mb_col + x_idx >= cm->mb_cols)) {
        // MB lies outside frame, move on
        continue;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
816 817
      }

818
      set_offsets(cpi, mb_row + y_idx, mb_col + x_idx, BLOCK_SIZE_MB16X16);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
819
      xd->mb_index = i;
820 821
      update_state(cpi, &x->mb_context[xd->sb_index][i],
                   BLOCK_SIZE_MB16X16, output_enabled);
John Koleszar's avatar
John Koleszar committed
822

Ronald S. Bultje's avatar
Ronald S. Bultje committed
823 824
      if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
        vp9_activity_masking(cpi, x);
John Koleszar's avatar
John Koleszar committed
825

826
      encode_macroblock(cpi, tp,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
827
                        output_enabled, mb_row + y_idx, mb_col + x_idx);
828 829
      if (output_enabled) {
        update_stats(cpi, mb_row + y_idx, mb_col + x_idx);
Deb Mukherjee's avatar
Deb Mukherjee committed
830

831
        (*tp)->token = EOSB_TOKEN;
832
        (*tp)++;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
833
      }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
834
    }
John Koleszar's avatar
John Koleszar committed
835
  }
John Koleszar's avatar
John Koleszar committed
836

John Koleszar's avatar
John Koleszar committed
837
  // debug output
Adrian Grange's avatar
Adrian Grange committed
838
#if DBG_PRNT_SEGMAP
John Koleszar's avatar
John Koleszar committed
839 840 841 842 843 844
  {
    FILE *statsfile;
    statsfile = fopen("segmap2.stt", "a");
    fprintf(statsfile, "\n");
    fclose(statsfile);
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
845