vp9_encodeframe.c 121 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5 6
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
7
 *  in the file PATENTS.  All contributing project authors may
8
 *  be found in the AUTHORS file in the root of the source tree.
John Koleszar's avatar
John Koleszar committed
9 10
 */

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

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

#include "vpx_ports/vpx_timer.h"

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

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

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

Jim Bankoski's avatar
Jim Bankoski committed
51
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
52 53
                              int mi_row, int mi_col, BLOCK_SIZE bsize,
                              PICK_MODE_CONTEXT *ctx);
54

55
// Motion vector component magnitude threshold for defining fast motion.
56
#define FAST_MOTION_MV_THRESH 24
57

58 59 60 61
// 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.
62 63 64 65 66 67 68 69 70 71 72
static const uint8_t VP9_VAR_OFFS[64] = {
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128,
  128, 128, 128, 128, 128, 128, 128, 128
};

73 74 75 76 77 78
typedef struct {
  unsigned int sse;
  int sum;
  unsigned int var;
} diff;

79
static unsigned int get_sby_perpixel_variance(VP9_COMP *cpi,
80
                                              const struct buf_2d *ref,
81
                                              BLOCK_SIZE bs) {
82 83 84
  unsigned int sse;
  const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
                                              VP9_VAR_OFFS, 0, &sse);
85
  return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
86 87
}

88
static unsigned int get_sby_perpixel_diff_variance(VP9_COMP *cpi,
89 90
                                                   const struct buf_2d *ref,
                                                   int mi_row, int mi_col,
91
                                                   BLOCK_SIZE bs) {
92 93 94 95 96 97
  const YV12_BUFFER_CONFIG *last = get_ref_frame_buffer(cpi, LAST_FRAME);
  const uint8_t* last_y = &last->y_buffer[mi_row * MI_SIZE * last->y_stride +
                                              mi_col * MI_SIZE];
  unsigned int sse;
  const unsigned int var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride,
                                              last_y, last->y_stride, &sse);
98 99 100 101 102 103
  return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]);
}

static BLOCK_SIZE get_rd_var_based_fixed_partition(VP9_COMP *cpi,
                                                   int mi_row,
                                                   int mi_col) {
104
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
105 106 107
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
  if (var < 8)
108
    return BLOCK_64X64;
109
  else if (var < 128)
110
    return BLOCK_32X32;
111 112 113 114
  else if (var < 2048)
    return BLOCK_16X16;
  else
    return BLOCK_8X8;
115 116
}

117 118 119
static BLOCK_SIZE get_nonrd_var_based_fixed_partition(VP9_COMP *cpi,
                                                      int mi_row,
                                                      int mi_col) {
120
  unsigned int var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
121 122
                                                    mi_row, mi_col,
                                                    BLOCK_64X64);
123
  if (var < 4)
124
    return BLOCK_64X64;
125
  else if (var < 10)
126 127
    return BLOCK_32X32;
  else
128
    return BLOCK_16X16;
129 130
}

131 132
// Lighter version of set_offsets that only sets the mode info
// pointers.
133
static INLINE void set_modeinfo_offsets(VP9_COMMON *const cm,
134 135 136
                                        MACROBLOCKD *const xd,
                                        int mi_row,
                                        int mi_col) {
137 138 139
  const int idx_str = xd->mi_stride * mi_row + mi_col;
  xd->mi = cm->mi_grid_visible + idx_str;
  xd->mi[0] = cm->mi + idx_str;
140 141
}

Alex Converse's avatar
Alex Converse committed
142
static int is_block_in_mb_map(const VP9_COMP *cpi, int mi_row, int mi_col,
143
                              BLOCK_SIZE bsize) {
Alex Converse's avatar
Alex Converse committed
144
  const VP9_COMMON *const cm = &cpi->common;
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
  const int mb_rows = cm->mb_rows;
  const int mb_cols = cm->mb_cols;
  const int mb_row = mi_row >> 1;
  const int mb_col = mi_col >> 1;
  const int mb_width = num_8x8_blocks_wide_lookup[bsize] >> 1;
  const int mb_height = num_8x8_blocks_high_lookup[bsize] >> 1;
  int r, c;
  if (bsize <= BLOCK_16X16) {
    return cpi->active_map[mb_row * mb_cols + mb_col];
  }
  for (r = 0; r < mb_height; ++r) {
    for (c = 0; c < mb_width; ++c) {
      int row = mb_row + r;
      int col = mb_col + c;
      if (row >= mb_rows || col >= mb_cols)
        continue;
      if (cpi->active_map[row * mb_cols + col])
        return 1;
    }
  }
  return 0;
}

Alex Converse's avatar
Alex Converse committed
168 169 170 171 172 173 174 175 176 177
static int check_active_map(const VP9_COMP *cpi, const MACROBLOCK *x,
                            int mi_row, int mi_col,
                            BLOCK_SIZE bsize) {
  if (cpi->active_map_enabled && !x->e_mbd.lossless) {
    return is_block_in_mb_map(cpi, mi_row, mi_col, bsize);
  } else {
    return 1;
  }
}

178 179 180 181 182 183 184 185 186 187
static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile,
                        int mi_row, int mi_col, BLOCK_SIZE bsize) {
  MACROBLOCK *const x = &cpi->mb;
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCKD *const xd = &x->e_mbd;
  MB_MODE_INFO *mbmi;
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
  const struct segmentation *const seg = &cm->seg;

188
  set_skip_context(xd, mi_row, mi_col);
189 190

  // Activity map pointer
Alex Converse's avatar
Alex Converse committed
191
  x->in_active_map = check_active_map(cpi, x, mi_row, mi_col, bsize);
192 193 194

  set_modeinfo_offsets(cm, xd, mi_row, mi_col);

195
  mbmi = &xd->mi[0]->mbmi;
196 197

  // Set up destination pointers.
198
  vp9_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215

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

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

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

  // R/D setup.
Dmitry Kovalev's avatar
Dmitry Kovalev committed
216 217
  x->rddiv = cpi->rd.RDDIV;
  x->rdmult = cpi->rd.RDMULT;
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234

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

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

235
static void duplicate_mode_info_in_sb(VP9_COMMON * const cm,
236 237 238 239 240 241 242 243 244 245
                                     MACROBLOCKD *const xd,
                                     int mi_row,
                                     int mi_col,
                                     BLOCK_SIZE bsize) {
  const int block_width = num_8x8_blocks_wide_lookup[bsize];
  const int block_height = num_8x8_blocks_high_lookup[bsize];
  int i, j;
  for (j = 0; j < block_height; ++j)
    for (i = 0; i < block_width; ++i) {
      if (mi_row + j < cm->mi_rows && mi_col + i < cm->mi_cols)
246
        xd->mi[j * xd->mi_stride + i] = xd->mi[0];
247 248 249 250 251 252 253 254 255
    }
}

static void set_block_size(VP9_COMP * const cpi,
                           int mi_row, int mi_col,
                           BLOCK_SIZE bsize) {
  if (cpi->common.mi_cols > mi_col && cpi->common.mi_rows > mi_row) {
    MACROBLOCKD *const xd = &cpi->mb.e_mbd;
    set_modeinfo_offsets(&cpi->common, xd, mi_row, mi_col);
256
    xd->mi[0]->mbmi.sb_type = bsize;
257
    duplicate_mode_info_in_sb(&cpi->common, xd, mi_row, mi_col, bsize);
258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374
  }
}

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

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

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

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

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

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

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

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

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

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

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

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

static int set_vt_partitioning(VP9_COMP *cpi,
                               void *data,
                               BLOCK_SIZE bsize,
                               int mi_row,
Yaowu Xu's avatar
Yaowu Xu committed
375
                               int mi_col) {
376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391
  VP9_COMMON * const cm = &cpi->common;
  variance_node vt;
  const int block_width = num_8x8_blocks_wide_lookup[bsize];
  const int block_height = num_8x8_blocks_high_lookup[bsize];
  // TODO(debargha): Choose this more intelligently.
  const int64_t threshold_multiplier = 25;
  int64_t threshold = threshold_multiplier * cpi->common.base_qindex;
  assert(block_height == block_width);

  tree_to_node(data, bsize, &vt);

  // Split none is available only if we have more than half a block size
  // in width and height inside the visible image.
  if (mi_col + block_width / 2 < cm->mi_cols &&
      mi_row + block_height / 2 < cm->mi_rows &&
      vt.part_variances->none.variance < threshold) {
Yaowu Xu's avatar
Yaowu Xu committed
392
    set_block_size(cpi, mi_row, mi_col, bsize);
393 394 395 396 397 398 399 400
    return 1;
  }

  // Vertical split is available on all but the bottom border.
  if (mi_row + block_height / 2 < cm->mi_rows &&
      vt.part_variances->vert[0].variance < threshold &&
      vt.part_variances->vert[1].variance < threshold) {
    BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_VERT);
Yaowu Xu's avatar
Yaowu Xu committed
401 402
    set_block_size(cpi, mi_row, mi_col, subsize);
    set_block_size(cpi, mi_row, mi_col + block_width / 2, subsize);
403 404 405 406 407 408 409 410
    return 1;
  }

  // Horizontal split is available on all but the right border.
  if (mi_col + block_width / 2 < cm->mi_cols &&
      vt.part_variances->horz[0].variance < threshold &&
      vt.part_variances->horz[1].variance < threshold) {
    BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_HORZ);
Yaowu Xu's avatar
Yaowu Xu committed
411 412
    set_block_size(cpi, mi_row, mi_col, subsize);
    set_block_size(cpi, mi_row + block_height / 2, mi_col, subsize);
413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
    return 1;
  }
  return 0;
}

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

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

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

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

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

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

451 452
    xd->mi[0]->mbmi.ref_frame[0] = LAST_FRAME;
    xd->mi[0]->mbmi.sb_type = BLOCK_64X64;
453
    vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv,
454
                          xd->mi[0]->mbmi.ref_mvs[LAST_FRAME],
455 456
                          &nearest_mv, &near_mv);

457
    xd->mi[0]->mbmi.mv[0] = nearest_mv;
458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480
    vp9_build_inter_predictors_sby(xd, mi_row, mi_col, BLOCK_64X64);

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

  // Fill in the entire tree of 8x8 variances for splits.
  for (i = 0; i < 4; i++) {
    const int x32_idx = ((i & 1) << 5);
    const int y32_idx = ((i >> 1) << 5);
    for (j = 0; j < 4; j++) {
      const int x16_idx = x32_idx + ((j & 1) << 4);
      const int y16_idx = y32_idx + ((j >> 1) << 4);
      v16x16 *vst = &vt.split[i].split[j];
      for (k = 0; k < 4; k++) {
        int x_idx = x16_idx + ((k & 1) << 3);
        int y_idx = y16_idx + ((k >> 1) << 3);
        unsigned int sse = 0;
        int sum = 0;
        if (x_idx < pixels_wide && y_idx < pixels_high)
481 482
          vp9_get8x8var(s + y_idx * sp + x_idx, sp,
                        d + y_idx * dp + x_idx, dp, &sse, &sum);
483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
        fill_variance(sse, sum, 64, &vst->split[k].part_variances.none);
      }
    }
  }
  // Fill the rest of the variance tree by summing split partition values.
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      fill_variance_tree(&vt.split[i].split[j], BLOCK_16X16);
    }
    fill_variance_tree(&vt.split[i], BLOCK_32X32);
  }
  fill_variance_tree(&vt, BLOCK_64X64);

  // Now go through the entire structure,  splitting every block size until
  // we get to one that's got a variance lower than our threshold,  or we
  // hit 8x8.
Yaowu Xu's avatar
Yaowu Xu committed
499 500
  if (!set_vt_partitioning(cpi, &vt, BLOCK_64X64,
                           mi_row, mi_col)) {
501 502 503
    for (i = 0; i < 4; ++i) {
      const int x32_idx = ((i & 1) << 2);
      const int y32_idx = ((i >> 1) << 2);
Yaowu Xu's avatar
Yaowu Xu committed
504 505
      if (!set_vt_partitioning(cpi, &vt.split[i], BLOCK_32X32,
                               (mi_row + y32_idx), (mi_col + x32_idx))) {
506 507 508 509 510 511 512 513 514
        for (j = 0; j < 4; ++j) {
          const int x16_idx = ((j & 1) << 1);
          const int y16_idx = ((j >> 1) << 1);
          // NOTE: This is a temporary hack to disable 8x8 partitions,
          // since it works really bad - possibly due to a bug
#define DISABLE_8X8_VAR_BASED_PARTITION
#ifdef DISABLE_8X8_VAR_BASED_PARTITION
          if (mi_row + y32_idx + y16_idx + 1 < cm->mi_rows &&
              mi_row + x32_idx + x16_idx + 1 < cm->mi_cols) {
Yaowu Xu's avatar
Yaowu Xu committed
515
            set_block_size(cpi,
516 517 518 519 520 521 522
                           (mi_row + y32_idx + y16_idx),
                           (mi_col + x32_idx + x16_idx),
                           BLOCK_16X16);
          } else {
            for (k = 0; k < 4; ++k) {
              const int x8_idx = (k & 1);
              const int y8_idx = (k >> 1);
Yaowu Xu's avatar
Yaowu Xu committed
523
              set_block_size(cpi,
524 525 526 527 528 529 530 531 532 533 534 535 536
                             (mi_row + y32_idx + y16_idx + y8_idx),
                             (mi_col + x32_idx + x16_idx + x8_idx),
                             BLOCK_8X8);
            }
          }
#else
          if (!set_vt_partitioning(cpi, &vt.split[i].split[j], tile,
                                   BLOCK_16X16,
                                   (mi_row + y32_idx + y16_idx),
                                   (mi_col + x32_idx + x16_idx), 2)) {
            for (k = 0; k < 4; ++k) {
              const int x8_idx = (k & 1);
              const int y8_idx = (k >> 1);
Yaowu Xu's avatar
Yaowu Xu committed
537
              set_block_size(cpi,
538 539 540 541 542 543 544 545 546 547 548 549
                             (mi_row + y32_idx + y16_idx + y8_idx),
                             (mi_col + x32_idx + x16_idx + x8_idx),
                             BLOCK_8X8);
            }
          }
#endif
        }
      }
    }
  }
}

Jim Bankoski's avatar
Jim Bankoski committed
550
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
551 552
                         int mi_row, int mi_col, BLOCK_SIZE bsize,
                         int output_enabled) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
553
  int i, x_idx, y;
554
  VP9_COMMON *const cm = &cpi->common;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
555
  RD_OPT *const rd_opt = &cpi->rd;
556 557
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
558 559
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
John Koleszar's avatar
John Koleszar committed
560
  MODE_INFO *mi = &ctx->mic;
561 562
  MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
  MODE_INFO *mi_addr = xd->mi[0];
563
  const struct segmentation *const seg = &cm->seg;
564

565
  const int mis = cm->mi_stride;
Jim Bankoski's avatar
Jim Bankoski committed
566
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
567
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
568
  int max_plane;
Adrian Grange's avatar
Adrian Grange committed
569

570
  assert(mi->mbmi.sb_type == bsize);
571

572 573
  *mi_addr = *mi;

Paul Wilkins's avatar
Paul Wilkins committed
574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589
  // If segmentation in use
  if (seg->enabled && output_enabled) {
    // For in frame complexity AQ copy the segment id from the segment map.
    if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
      const uint8_t *const map = seg->update_map ? cpi->segmentation_map
                                                 : cm->last_frame_seg_map;
      mi_addr->mbmi.segment_id =
        vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
    }
    // Else for cyclic refresh mode update the segment map, set the segment id
    // and then update the quantizer.
    else if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
      vp9_cyclic_refresh_update_segment(cpi, &xd->mi[0]->mbmi,
                                        mi_row, mi_col, bsize, 1);
      vp9_init_plane_quantizers(cpi, x);
    }
590
  }
591

592 593
  max_plane = is_inter_block(mbmi) ? MAX_MB_PLANE : 1;
  for (i = 0; i < max_plane; ++i) {
594
    p[i].coeff = ctx->coeff_pbuf[i][1];
595
    p[i].qcoeff = ctx->qcoeff_pbuf[i][1];
596
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1];
597
    p[i].eobs = ctx->eobs_pbuf[i][1];
598 599
  }

600 601
  for (i = max_plane; i < MAX_MB_PLANE; ++i) {
    p[i].coeff = ctx->coeff_pbuf[i][2];
602
    p[i].qcoeff = ctx->qcoeff_pbuf[i][2];
603
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2];
604
    p[i].eobs = ctx->eobs_pbuf[i][2];
605 606
  }

John Koleszar's avatar
John Koleszar committed
607 608
  // Restore the coding context of the MB to that that was in place
  // when the mode was picked for it
609 610
  for (y = 0; y < mi_height; y++)
    for (x_idx = 0; x_idx < mi_width; x_idx++)
James Zern's avatar
James Zern committed
611
      if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx
612
        && (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) {
613
        xd->mi[x_idx + y * mis] = mi_addr;
614
      }
615

616
  if (cpi->oxcf.aq_mode)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
617
    vp9_init_plane_quantizers(cpi, x);
618

619 620
  // FIXME(rbultje) I'm pretty sure this should go to the end of this block
  // (i.e. after the output_enabled)
621 622
  if (bsize < BLOCK_32X32) {
    if (bsize < BLOCK_16X16)
623 624
      ctx->tx_rd_diff[ALLOW_16X16] = ctx->tx_rd_diff[ALLOW_8X8];
    ctx->tx_rd_diff[ALLOW_32X32] = ctx->tx_rd_diff[ALLOW_16X16];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
625
  }
Adrian Grange's avatar
Adrian Grange committed
626

627
  if (is_inter_block(mbmi) && mbmi->sb_type < BLOCK_8X8) {
628 629
    mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int;
    mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int;
John Koleszar's avatar
John Koleszar committed
630 631
  }

632
  x->skip = ctx->skip;
633
  vpx_memcpy(x->zcoeff_blk[mbmi->tx_size], ctx->zcoeff_blk,
634
             sizeof(uint8_t) * ctx->num_4x4_blk);
635

Ronald S. Bultje's avatar
Ronald S. Bultje committed
636 637 638
  if (!output_enabled)
    return;

639
  if (!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
640
    for (i = 0; i < TX_MODES; i++)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
641
      rd_opt->tx_select_diff[i] += ctx->tx_rd_diff[i];
642 643
  }

644
#if CONFIG_INTERNAL_STATS
645
  if (frame_is_intra_only(cm)) {
John Koleszar's avatar
John Koleszar committed
646
    static const int kf_mode_index[] = {
647 648 649 650
      THR_DC        /*DC_PRED*/,
      THR_V_PRED    /*V_PRED*/,
      THR_H_PRED    /*H_PRED*/,
      THR_D45_PRED  /*D45_PRED*/,
John Koleszar's avatar
John Koleszar committed
651 652 653
      THR_D135_PRED /*D135_PRED*/,
      THR_D117_PRED /*D117_PRED*/,
      THR_D153_PRED /*D153_PRED*/,
Dmitry Kovalev's avatar
Dmitry Kovalev committed
654
      THR_D207_PRED /*D207_PRED*/,
655 656
      THR_D63_PRED  /*D63_PRED*/,
      THR_TM        /*TM_PRED*/,
John Koleszar's avatar
John Koleszar committed
657
    };
658
    ++cpi->mode_chosen_counts[kf_mode_index[mbmi->mode]];
John Koleszar's avatar
John Koleszar committed
659 660
  } else {
    // Note how often each mode chosen as best
661 662 663 664
    ++cpi->mode_chosen_counts[ctx->best_mode_index];
  }
#endif
  if (!frame_is_intra_only(cm)) {
665
    if (is_inter_block(mbmi)) {
666
      vp9_update_mv_count(cm, xd);
667 668 669 670 671

      if (cm->interp_filter == SWITCHABLE) {
        const int ctx = vp9_get_pred_context_switchable_interp(xd);
        ++cm->counts.switchable_interp[ctx][mbmi->interp_filter];
      }
672
    }
Adrian Grange's avatar
Adrian Grange committed
673

Dmitry Kovalev's avatar
Dmitry Kovalev committed
674 675 676
    rd_opt->comp_pred_diff[SINGLE_REFERENCE] += ctx->single_pred_diff;
    rd_opt->comp_pred_diff[COMPOUND_REFERENCE] += ctx->comp_pred_diff;
    rd_opt->comp_pred_diff[REFERENCE_MODE_SELECT] += ctx->hybrid_pred_diff;
677

678
    for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i)
Dmitry Kovalev's avatar
Dmitry Kovalev committed
679
      rd_opt->filter_diff[i] += ctx->best_filter_diff[i];
John Koleszar's avatar
John Koleszar committed
680
  }
Adrian Grange's avatar
Adrian Grange committed
681 682
}

Jim Bankoski's avatar
Jim Bankoski committed
683
void vp9_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src,
684 685 686 687 688
                          int mi_row, int mi_col) {
  uint8_t *const buffers[4] = {src->y_buffer, src->u_buffer, src->v_buffer,
                               src->alpha_buffer};
  const int strides[4] = {src->y_stride, src->uv_stride, src->uv_stride,
                          src->alpha_stride};
689 690
  int i;

691 692 693
  // Set current frame pointer.
  x->e_mbd.cur_buf = src;

694 695
  for (i = 0; i < MAX_MB_PLANE; i++)
    setup_pred_plane(&x->plane[i].src, buffers[i], strides[i], mi_row, mi_col,
Jim Bankoski's avatar
Jim Bankoski committed
696
                     NULL, x->e_mbd.plane[i].subsampling_x,
697
                     x->e_mbd.plane[i].subsampling_y);
John Koleszar's avatar
John Koleszar committed
698 699
}

700 701 702 703
static void rd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
                             int mi_row, int mi_col,
                             int *totalrate, int64_t *totaldist,
                             BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx,
704
                             int64_t best_rd, int block) {
705 706 707
  VP9_COMMON *const cm = &cpi->common;
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
708
  MB_MODE_INFO *mbmi;
709 710
  struct macroblock_plane *const p = x->plane;
  struct macroblockd_plane *const pd = xd->plane;
711
  const AQ_MODE aq_mode = cpi->oxcf.aq_mode;
712
  int i, orig_rdmult;
713 714
  double rdmult_ratio;

715
  vp9_clear_system_state();
716
  rdmult_ratio = 1.0;  // avoid uninitialized warnings
Ronald S. Bultje's avatar
Ronald S. Bultje committed
717

718
  // Use the lower precision, but faster, 32x32 fdct for mode selection.
719
  x->use_lp32x32fdct = 1;
720

721 722 723
  // TODO(JBB): Most other places in the code instead of calling the function
  // and then checking if its not the first 8x8 we put the check in the
  // calling function.  Do that here.
724
  if (bsize < BLOCK_8X8) {
725 726
    // When ab_index = 0 all sub-blocks are handled, so for ab_index != 0
    // there is nothing to be done.
727
    if (block != 0) {
728 729
      *totalrate = 0;
      *totaldist = 0;
730
      return;
731
    }
732
  }
733

James Zern's avatar
James Zern committed
734
  set_offsets(cpi, tile, mi_row, mi_col, bsize);
735
  mbmi = &xd->mi[0]->mbmi;
736
  mbmi->sb_type = bsize;
737

738
  for (i = 0; i < MAX_MB_PLANE; ++i) {
739
    p[i].coeff = ctx->coeff_pbuf[i][0];
740
    p[i].qcoeff = ctx->qcoeff_pbuf[i][0];
741
    pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
742
    p[i].eobs = ctx->eobs_pbuf[i][0];
743
  }
744
  ctx->is_coded = 0;
745
  x->skip_recode = 0;
746

747
  // Set to zero to make sure we do not use the previous encoded frame stats
748
  mbmi->skip = 0;
749

750
  x->source_variance = get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize);
751

752 753 754
  // Save rdmult before it might be changed, so it can be restored later.
  orig_rdmult = x->rdmult;

755
  if (aq_mode == VARIANCE_AQ) {
756 757
    const int energy = bsize <= BLOCK_16X16 ? x->mb_energy
                                            : vp9_block_energy(cpi, x, bsize);
Paul Wilkins's avatar
Paul Wilkins committed
758 759 760
    if (cm->frame_type == KEY_FRAME ||
        cpi->refresh_alt_ref_frame ||
        (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) {
761
      mbmi->segment_id = vp9_vaq_segment_id(energy);
Paul Wilkins's avatar
Paul Wilkins committed
762 763 764
    } else {
      const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
                                                    : cm->last_frame_seg_map;
765
      mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col);
Paul Wilkins's avatar
Paul Wilkins committed
766 767
    }

768
    rdmult_ratio = vp9_vaq_rdmult_ratio(energy);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
769
    vp9_init_plane_quantizers(cpi, x);
770
    vp9_clear_system_state();
771
    x->rdmult = (int)round(x->rdmult * rdmult_ratio);
772
  } else if (aq_mode == COMPLEXITY_AQ) {
773 774
    const int mi_offset = mi_row * cm->mi_cols + mi_col;
    unsigned char complexity = cpi->complexity_map[mi_offset];
Paul Wilkins's avatar
Paul Wilkins committed
775 776
    const int is_edge = (mi_row <= 1) || (mi_row >= (cm->mi_rows - 2)) ||
                        (mi_col <= 1) || (mi_col >= (cm->mi_cols - 2));
777 778
    if (!is_edge && (complexity > 128))
      x->rdmult += ((x->rdmult * (complexity - 128)) / 256);
779
  } else if (aq_mode == CYCLIC_REFRESH_AQ) {
780
    const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
781
                                                  : cm->last_frame_seg_map;
782 783
    // If segment 1, use rdmult for that segment.
    if (vp9_get_segment_id(cm, map, bsize, mi_row, mi_col))
784
      x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh);
785
  }
786

787 788
  // Find best coding mode & reconstruct the MB so it is available
  // as a predictor for MBs that follow in the SB
789
  if (frame_is_intra_only(cm)) {
790 791
    vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx,
                              best_rd);
792 793
  } else {
    if (bsize >= BLOCK_8X8)
James Zern's avatar
James Zern committed
794 795
      vp9_rd_pick_inter_mode_sb(cpi, x, tile, mi_row, mi_col,
                                totalrate, totaldist, bsize, ctx, best_rd);
796
    else
James Zern's avatar
James Zern committed
797
      vp9_rd_pick_inter_mode_sub8x8(cpi, x, tile, mi_row, mi_col, totalrate,
798 799
                                    totaldist, bsize, ctx, best_rd);
  }
800

801 802 803 804 805
  x->rdmult = orig_rdmult;

  if (aq_mode == VARIANCE_AQ && *totalrate != INT_MAX) {
    vp9_clear_system_state();
    *totalrate = (int)round(*totalrate * rdmult_ratio);
Paul Wilkins's avatar
Paul Wilkins committed
806
  }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
807
}
Adrian Grange's avatar
Adrian Grange committed
808

809 810
static void update_stats(VP9_COMP *cpi) {
  VP9_COMMON *const cm = &cpi->common;
811 812
  const MACROBLOCK *const x = &cpi->mb;
  const MACROBLOCKD *const xd = &x->e_mbd;
813
  const MODE_INFO *const mi = xd->mi[0];
814
  const MB_MODE_INFO *const mbmi = &mi->mbmi;
Adrian Grange's avatar
Adrian Grange committed
815

816
  if (!frame_is_intra_only(cm)) {
817
    const int seg_ref_active = vp9_segfeature_active(&cm->seg, mbmi->segment_id,
818
                                                     SEG_LVL_REF_FRAME);
819 820 821 822 823 824 825 826 827 828 829
    if (!seg_ref_active) {
      FRAME_COUNTS *const counts = &cm->counts;
      const int inter_block = is_inter_block(mbmi);

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

      // If the segment reference feature is enabled we have only a single
      // reference frame allowed for the segment so exclude it from
      // the reference frame counts used to work out probabilities.
      if (inter_block) {
        const MV_REFERENCE_FRAME ref0 = mbmi->ref_frame[0];
830

831 832 833 834 835 836 837 838 839 840 841 842 843 844
        if (cm->reference_mode == REFERENCE_MODE_SELECT)
          counts->comp_inter[vp9_get_reference_mode_context(cm, xd)]
                            [has_second_ref(mbmi)]++;

        if (has_second_ref(mbmi)) {
          counts->comp_ref[vp9_get_pred_context_comp_ref_p(cm, xd)]
                          [ref0 == GOLDEN_FRAME]++;
        } else {
          counts->single_ref[vp9_get_pred_context_single_ref_p1(xd)][0]
                            [ref0 != LAST_FRAME]++;
          if (ref0 != LAST_FRAME)
            counts->single_ref[vp9_get_pred_context_single_ref_p2(xd)][1]
                              [ref0 != GOLDEN_FRAME]++;
        }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
845
      }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
846
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
847 848
  }
}
John Koleszar's avatar
John Koleszar committed
849

850 851 852
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],
Jim Bankoski's avatar
Jim Bankoski committed
853
                            PARTITION_CONTEXT sa[8], PARTITION_CONTEXT sl[8],
854
                            BLOCK_SIZE bsize) {
Jim Bankoski's avatar
Jim Bankoski committed
855 856
  MACROBLOCK *const x = &cpi->mb;
  MACROBLOCKD *const xd = &x->e_mbd;
857
  int p;
Jim Bankoski's avatar
Jim Bankoski committed
858 859
  const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
  const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
860 861
  int mi_width = num_8x8_blocks_wide_lookup[bsize];
  int mi_height = num_8x8_blocks_high_lookup[bsize];
862
  for (p = 0; p < MAX_MB_PLANE; p++) {
Jim Bankoski's avatar
Jim Bankoski committed
863
    vpx_memcpy(
864
        xd->above_context[p] + ((mi_col * 2) >> xd->plane[p].subsampling_x),
Jim Bankoski's avatar
Jim Bankoski committed
865 866 867
        a + num_4x4_blocks_wide * p,
        (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >>
        xd->plane[p].subsampling_x);
Jim Bankoski's avatar
Jim Bankoski committed
868
    vpx_memcpy(
869
        xd->left_context[p]
Jim Bankoski's avatar
Jim Bankoski committed
870 871 872 873 874
            + ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
        l + num_4x4_blocks_high * p,
        (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >>
        xd->plane[p].subsampling_y);
  }
875 876 877 878
  vpx_memcpy(xd->above_seg_context + mi_col, sa,
             sizeof(*xd->above_seg_context) * mi_width);
  vpx_memcpy(xd->left_seg_context + (mi_row & MI_MASK), sl,
             sizeof(xd->left_seg_context[0]) * mi_height);
879
}
Jim Bankoski's avatar
Jim Bankoski committed
880
static void save_context(VP9_COMP *cpi, int mi_row, int mi_col,
Jim Bankoski's avatar
Jim Bankoski committed
881 882 883
                         ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
                         ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
                         PARTITION_CONTEXT sa[8], PARTITION_CONTEXT sl[8],
884
                         BLOCK_SIZE bsize) {
Jim Bankoski's avatar
Jim Bankoski committed
885 886
  const MACROBLOCK *const x = &cpi->mb;
  const MACROBLOCKD *const xd = &x->e_mbd;
Jim Bankoski's avatar
Jim Bankoski committed
887
  int p;
Jim Bankoski's avatar
Jim Bankoski committed
888 889
  const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
  const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
890 891
  int mi_width = num_8x8_blocks_wide_lookup[bsize];
  int mi_height = num_8x8_blocks_high_lookup[bsize];
Jim Bankoski's avatar
Jim Bankoski committed
892 893 894

  // buffer the above/left context information of the block in search.
  for (p = 0; p < MAX_MB_PLANE; ++p) {
Jim Bankoski's avatar
Jim Bankoski committed
895
    vpx_memcpy(
Jim Bankoski's avatar
Jim Bankoski committed
896
        a + num_4x4_blocks_wide * p,
897
        xd->above_context[p] + (mi_col * 2 >> xd->plane[p].subsampling_x),
Jim Bankoski's avatar
Jim Bankoski committed
898 899
        (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >>
        xd->plane[p].subsampling_x);
Jim Bankoski's avatar
Jim Bankoski committed
900
    vpx_memcpy(
Jim Bankoski's avatar
Jim Bankoski committed
901
        l + num_4x4_blocks_high * p,
902
        xd->left_context[p]
Jim Bankoski's avatar
Jim Bankoski committed
903 904 905 906
            + ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
        (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >>
        xd->plane[p].subsampling_y);
  }
907 908 909 910
  vpx_memcpy(sa, xd->above_seg_context + mi_col,
             sizeof(*xd->above_seg_context) * mi_width);
  vpx_memcpy(sl, xd->left_seg_context + (mi_row & MI_MASK),
             sizeof(xd->left_seg_context[0]) * mi_height);
Jim Bankoski's avatar
Jim Bankoski committed
911
}
912

James Zern's avatar
James Zern committed
913 914
static void encode_b(VP9_COMP *cpi, const TileInfo *const tile,
                     TOKENEXTRA **tp, int mi_row, int mi_col,
915 916
                     int output_enabled, BLOCK_SIZE bsize,
                     PICK_MODE_CONTEXT *ctx) {
John Koleszar's avatar
John Koleszar committed
917

James Zern's avatar
James Zern committed
918
  set_offsets(cpi, tile, mi_row, mi_col,<