vp9_tokenize.c 34.9 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
7
 *  in the file PATENTS.  All contributing project authors may
8
 *  be found in the AUTHORS file in the root of the source tree.
John Koleszar's avatar
John Koleszar committed
9
10
11
12
13
14
15
 */


#include <math.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
16
17
#include "vp9/encoder/vp9_onyx_int.h"
#include "vp9/encoder/vp9_tokenize.h"
John Koleszar's avatar
John Koleszar committed
18
19
#include "vpx_mem/vpx_mem.h"

20
21
22
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_entropy.h"
23

John Koleszar's avatar
John Koleszar committed
24
/* Global event counters used for accumulating statistics across several
25
   compressions, then generating vp9_context.c = initial stats. */
John Koleszar's avatar
John Koleszar committed
26
27

#ifdef ENTROPY_STATS
28
29
30
vp9_coeff_accum context_counters_4x4[BLOCK_TYPES];
vp9_coeff_accum context_counters_8x8[BLOCK_TYPES];
vp9_coeff_accum context_counters_16x16[BLOCK_TYPES];
31
vp9_coeff_accum context_counters_32x32[BLOCK_TYPES];
32

33
34
35
extern vp9_coeff_stats tree_update_hist_4x4[BLOCK_TYPES];
extern vp9_coeff_stats tree_update_hist_8x8[BLOCK_TYPES];
extern vp9_coeff_stats tree_update_hist_16x16[BLOCK_TYPES];
36
extern vp9_coeff_stats tree_update_hist_32x32[BLOCK_TYPES];
37
38
#endif  /* ENTROPY_STATS */

39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#if CONFIG_CODE_NONZEROCOUNT
#ifdef NZC_STATS
unsigned int nzc_counts_4x4[MAX_NZC_CONTEXTS][REF_TYPES][BLOCK_TYPES]
                           [NZC4X4_TOKENS];
unsigned int nzc_counts_8x8[MAX_NZC_CONTEXTS][REF_TYPES][BLOCK_TYPES]
                           [NZC8X8_TOKENS];
unsigned int nzc_counts_16x16[MAX_NZC_CONTEXTS][REF_TYPES][BLOCK_TYPES]
                             [NZC16X16_TOKENS];
unsigned int nzc_counts_32x32[MAX_NZC_CONTEXTS][REF_TYPES][BLOCK_TYPES]
                             [NZC32X32_TOKENS];
unsigned int nzc_pcat_counts[MAX_NZC_CONTEXTS][NZC_TOKENS_EXTRA]
                            [NZC_BITS_EXTRA][2];
#endif
#endif

John Koleszar's avatar
John Koleszar committed
54
static TOKENVALUE dct_value_tokens[DCT_MAX_VALUE * 2];
55
const TOKENVALUE *vp9_dct_value_tokens_ptr;
John Koleszar's avatar
John Koleszar committed
56
static int dct_value_cost[DCT_MAX_VALUE * 2];
57
const int *vp9_dct_value_cost_ptr;
58

John Koleszar's avatar
John Koleszar committed
59
static void fill_value_tokens() {
John Koleszar's avatar
John Koleszar committed
60

John Koleszar's avatar
John Koleszar committed
61
  TOKENVALUE *const t = dct_value_tokens + DCT_MAX_VALUE;
62
  vp9_extra_bit_struct *const e = vp9_extra_bits;
John Koleszar's avatar
John Koleszar committed
63

John Koleszar's avatar
John Koleszar committed
64
65
  int i = -DCT_MAX_VALUE;
  int sign = 1;
John Koleszar's avatar
John Koleszar committed
66

John Koleszar's avatar
John Koleszar committed
67
68
69
  do {
    if (!i)
      sign = 0;
John Koleszar's avatar
John Koleszar committed
70

John Koleszar's avatar
John Koleszar committed
71
72
73
    {
      const int a = sign ? -i : i;
      int eb = sign;
John Koleszar's avatar
John Koleszar committed
74

John Koleszar's avatar
John Koleszar committed
75
76
      if (a > 4) {
        int j = 4;
John Koleszar's avatar
John Koleszar committed
77

John Koleszar's avatar
John Koleszar committed
78
        while (++j < 11  &&  e[j].base_val <= a) {}
John Koleszar's avatar
John Koleszar committed
79

John Koleszar's avatar
John Koleszar committed
80
81
82
83
        t[i].Token = --j;
        eb |= (a - e[j].base_val) << 1;
      } else
        t[i].Token = a;
John Koleszar's avatar
John Koleszar committed
84

John Koleszar's avatar
John Koleszar committed
85
86
      t[i].Extra = eb;
    }
John Koleszar's avatar
John Koleszar committed
87

John Koleszar's avatar
John Koleszar committed
88
89
90
    // initialize the cost for extra bits for all possible coefficient value.
    {
      int cost = 0;
91
      vp9_extra_bit_struct *p = vp9_extra_bits + t[i].Token;
John Koleszar's avatar
John Koleszar committed
92

John Koleszar's avatar
John Koleszar committed
93
94
95
      if (p->base_val) {
        const int extra = t[i].Extra;
        const int Length = p->Len;
John Koleszar's avatar
John Koleszar committed
96

John Koleszar's avatar
John Koleszar committed
97
        if (Length)
98
          cost += treed_cost(p->tree, p->prob, extra >> 1, Length);
John Koleszar's avatar
John Koleszar committed
99

100
        cost += vp9_cost_bit(vp9_prob_half, extra & 1); /* sign */
John Koleszar's avatar
John Koleszar committed
101
102
        dct_value_cost[i + DCT_MAX_VALUE] = cost;
      }
John Koleszar's avatar
John Koleszar committed
103
104
105

    }

John Koleszar's avatar
John Koleszar committed
106
107
  } while (++i < DCT_MAX_VALUE);

108
109
  vp9_dct_value_tokens_ptr = dct_value_tokens + DCT_MAX_VALUE;
  vp9_dct_value_cost_ptr   = dct_value_cost + DCT_MAX_VALUE;
John Koleszar's avatar
John Koleszar committed
110
}
111

112
static void tokenize_b(VP9_COMP *cpi,
113
                       MACROBLOCKD *xd,
Yaowu Xu's avatar
Yaowu Xu committed
114
                       const int ib,
115
116
117
118
                       TOKENEXTRA **tp,
                       PLANE_TYPE type,
                       TX_SIZE tx_size,
                       int dry_run) {
119
  MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
Daniel Kang's avatar
Daniel Kang committed
120
  int pt; /* near block/prev token context index */
121
  int c = 0;
122
  int recent_energy = 0;
123
  const int eob = xd->eobs[ib];     /* one beyond last nonzero coeff */
Daniel Kang's avatar
Daniel Kang committed
124
  TOKENEXTRA *t = *tp;        /* store tokens starting here */
125
  int16_t *qcoeff_ptr = xd->qcoeff + 16 * ib;
126
  int seg_eob;
127
128
  const int segment_id = mbmi->segment_id;
  const BLOCK_SIZE_TYPE sb_type = mbmi->sb_type;
129
  const int *scan;
130
131
  vp9_coeff_count *counts;
  vp9_coeff_probs *probs;
132
133
  const int ref = mbmi->ref_frame != INTRA_FRAME;
  ENTROPY_CONTEXT *a, *l, *a1, *l1, *a2, *l2, *a3, *l3, a_ec, l_ec;
134
135
136
137
138
#if CONFIG_CODE_NONZEROCOUNT
  int zerosleft, nzc = 0;
  if (eob == 0)
    assert(xd->nzcs[ib] == 0);
#endif
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

  if (sb_type == BLOCK_SIZE_SB64X64) {
    a = (ENTROPY_CONTEXT *)xd->above_context +
                                             vp9_block2above_sb64[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left_sb64[tx_size][ib];
    a1 = a + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l1 = l + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a2 = a1 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l2 = l1 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a3 = a2 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l3 = l2 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
  } else if (sb_type == BLOCK_SIZE_SB32X32) {
    a = (ENTROPY_CONTEXT *)xd->above_context + vp9_block2above_sb[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left_sb[tx_size][ib];
    a1 = a + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l1 = l + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a2 = a3 = l2 = l3 = NULL;
  } else {
    a = (ENTROPY_CONTEXT *)xd->above_context + vp9_block2above[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left[tx_size][ib];
    a1 = l1 = a2 = l2 = a3 = l3 = NULL;
  }
161

162
163
  switch (tx_size) {
    default:
164
165
166
    case TX_4X4: {
      const TX_TYPE tx_type = (type == PLANE_TYPE_Y_WITH_DC) ?
                              get_tx_type_4x4(xd, ib) : DCT_DCT;
167
168
      a_ec = *a;
      l_ec = *l;
169
      seg_eob = 16;
170
      scan = vp9_default_zig_zag1d_4x4;
171
172
      if (tx_type != DCT_DCT) {
        if (tx_type == ADST_DCT) {
173
          scan = vp9_row_scan_4x4;
174
        } else if (tx_type == DCT_ADST) {
175
          scan = vp9_col_scan_4x4;
176
177
        }
      }
178
179
      counts = cpi->coef_counts_4x4;
      probs = cpi->common.fc.coef_probs_4x4;
180
      break;
181
    }
182
    case TX_8X8:
183
184
185
186
      a_ec = (a[0] + a[1]) != 0;
      l_ec = (l[0] + l[1]) != 0;
      seg_eob = 64;
      scan = vp9_default_zig_zag1d_8x8;
187
188
      counts = cpi->coef_counts_8x8;
      probs = cpi->common.fc.coef_probs_8x8;
189
190
      break;
    case TX_16X16:
Yaowu Xu's avatar
Yaowu Xu committed
191
192
193
      if (type != PLANE_TYPE_UV) {
        a_ec = (a[0] + a[1] + a[2] + a[3]) != 0;
        l_ec = (l[0] + l[1] + l[2] + l[3]) != 0;
194
195
196
      } else {
        a_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
        l_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
Yaowu Xu's avatar
Yaowu Xu committed
197
      }
198
      seg_eob = 256;
199
      scan = vp9_default_zig_zag1d_16x16;
200
201
      counts = cpi->coef_counts_16x16;
      probs = cpi->common.fc.coef_probs_16x16;
202
203
      break;
    case TX_32X32:
204
205
206
207
208
209
210
211
212
213
214
      if (type != PLANE_TYPE_UV) {
        a_ec = (a[0] + a[1] + a[2] + a[3] +
                a1[0] + a1[1] + a1[2] + a1[3]) != 0;
        l_ec = (l[0] + l[1] + l[2] + l[3] +
                l1[0] + l1[1] + l1[2] + l1[3]) != 0;
      } else {
        a_ec = (a[0] + a[1] + a1[0] + a1[1] +
                a2[0] + a2[1] + a3[0] + a3[1]) != 0;
        l_ec = (l[0] + l[1] + l1[0] + l1[1] +
                l2[0] + l2[1] + l3[0] + l3[1]) != 0;
      }
215
216
217
218
      seg_eob = 1024;
      scan = vp9_default_zig_zag1d_32x32;
      counts = cpi->coef_counts_32x32;
      probs = cpi->common.fc.coef_probs_32x32;
219
      break;
John Koleszar's avatar
John Koleszar committed
220
221
  }

Yaowu Xu's avatar
Yaowu Xu committed
222
223
  VP9_COMBINEENTROPYCONTEXTS(pt, a_ec, l_ec);

Paul Wilkins's avatar
Paul Wilkins committed
224
225
  if (vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP))
    seg_eob = 0;
John Koleszar's avatar
John Koleszar committed
226

227
  do {
228
    const int band = get_coef_band(tx_size, c);
229
    int token;
230
231
232
233
    int v = 0;
#if CONFIG_CODE_NONZEROCOUNT
    zerosleft = seg_eob - xd->nzcs[ib] - c + nzc;
#endif
234
    if (c < eob) {
235
      const int rc = scan[c];
236
      v = qcoeff_ptr[rc];
237
238
      assert(-DCT_MAX_VALUE <= v  &&  v < DCT_MAX_VALUE);

239
240
      t->Extra = vp9_dct_value_tokens_ptr[v].Extra;
      token    = vp9_dct_value_tokens_ptr[v].Token;
241
    } else {
242
243
244
#if CONFIG_CODE_NONZEROCOUNT
      break;
#else
245
      token = DCT_EOB_TOKEN;
246
#endif
247
    }
John Koleszar's avatar
John Koleszar committed
248
249

    t->Token = token;
250
    t->context_tree = probs[type][ref][band][pt];
251
252
253
254
#if CONFIG_CODE_NONZEROCOUNT
    // Skip zero node if there are no zeros left
    t->skip_eob_node = 1 + (zerosleft == 0);
#else
255
    t->skip_eob_node = (pt == 0) && (band > 0);
256
#endif
257
    assert(vp9_coef_encodings[t->Token].Len - t->skip_eob_node > 0);
258
    if (!dry_run) {
259
      ++counts[type][ref][band][pt][token];
260
    }
261
262
263
#if CONFIG_CODE_NONZEROCOUNT
    nzc += (v != 0);
#endif
264
265

    pt = vp9_get_coef_context(&recent_energy, token);
266
    ++t;
267
  } while (c < eob && ++c < seg_eob);
268
269
270
#if CONFIG_CODE_NONZEROCOUNT
  assert(nzc == xd->nzcs[ib]);
#endif
271
272

  *tp = t;
273
  a_ec = l_ec = (c > 0); /* 0 <-> all coeff data is zero */
Yaowu Xu's avatar
Yaowu Xu committed
274
275
276
  a[0] = a_ec;
  l[0] = l_ec;

277
  if (tx_size == TX_8X8) {
Yaowu Xu's avatar
Yaowu Xu committed
278
279
280
    a[1] = a_ec;
    l[1] = l_ec;
  } else if (tx_size == TX_16X16) {
Yaowu Xu's avatar
Yaowu Xu committed
281
282
283
284
    if (type != PLANE_TYPE_UV) {
      a[1] = a[2] = a[3] = a_ec;
      l[1] = l[2] = l[3] = l_ec;
    } else {
285
286
      a1[0] = a1[1] = a[1] = a_ec;
      l1[0] = l1[1] = l[1] = l_ec;
Yaowu Xu's avatar
Yaowu Xu committed
287
    }
288
  } else if (tx_size == TX_32X32) {
289
290
291
292
293
294
295
296
297
298
299
    if (type != PLANE_TYPE_UV) {
      a[1] = a[2] = a[3] = a_ec;
      l[1] = l[2] = l[3] = l_ec;
      a1[0] = a1[1] = a1[2] = a1[3] = a_ec;
      l1[0] = l1[1] = l1[2] = l1[3] = l_ec;
    } else {
      a[1] = a1[0] = a1[1] = a_ec;
      l[1] = l1[0] = l1[1] = l_ec;
      a2[0] = a2[1] = a3[0] = a3[1] = a_ec;
      l2[0] = l2[1] = l3[0] = l3[1] = l_ec;
    }
Yaowu Xu's avatar
Yaowu Xu committed
300
  }
John Koleszar's avatar
John Koleszar committed
301
302
}

303
int vp9_mby_is_skippable_4x4(MACROBLOCKD *xd) {
John Koleszar's avatar
John Koleszar committed
304
305
  int skip = 1;
  int i = 0;
306

307
  for (i = 0; i < 16; i++)
308
    skip &= (!xd->eobs[i]);
309

John Koleszar's avatar
John Koleszar committed
310
  return skip;
311
}
312

313
int vp9_mbuv_is_skippable_4x4(MACROBLOCKD *xd) {
John Koleszar's avatar
John Koleszar committed
314
315
  int skip = 1;
  int i;
316

John Koleszar's avatar
John Koleszar committed
317
  for (i = 16; i < 24; i++)
318
    skip &= (!xd->eobs[i]);
John Koleszar's avatar
John Koleszar committed
319
  return skip;
320
321
}

322
323
static int mb_is_skippable_4x4(MACROBLOCKD *xd) {
  return (vp9_mby_is_skippable_4x4(xd) &
324
          vp9_mbuv_is_skippable_4x4(xd));
325
}
Yaowu Xu's avatar
Yaowu Xu committed
326

327
int vp9_mby_is_skippable_8x8(MACROBLOCKD *xd) {
John Koleszar's avatar
John Koleszar committed
328
329
  int skip = 1;
  int i = 0;
330

331
  for (i = 0; i < 16; i += 4)
332
    skip &= (!xd->eobs[i]);
333

John Koleszar's avatar
John Koleszar committed
334
  return skip;
335
}
336

337
int vp9_mbuv_is_skippable_8x8(MACROBLOCKD *xd) {
338
  return (!xd->eobs[16]) & (!xd->eobs[20]);
339
}
340

341
342
static int mb_is_skippable_8x8(MACROBLOCKD *xd) {
  return (vp9_mby_is_skippable_8x8(xd) &
343
          vp9_mbuv_is_skippable_8x8(xd));
Deb Mukherjee's avatar
Deb Mukherjee committed
344
345
}

346
347
static int mb_is_skippable_8x8_4x4uv(MACROBLOCKD *xd) {
  return (vp9_mby_is_skippable_8x8(xd) &
348
          vp9_mbuv_is_skippable_4x4(xd));
349
}
Yaowu Xu's avatar
Yaowu Xu committed
350

351
int vp9_mby_is_skippable_16x16(MACROBLOCKD *xd) {
352
  return (!xd->eobs[0]);
Daniel Kang's avatar
Daniel Kang committed
353
354
}

355
356
static int mb_is_skippable_16x16(MACROBLOCKD *xd) {
  return (vp9_mby_is_skippable_16x16(xd) & vp9_mbuv_is_skippable_8x8(xd));
Daniel Kang's avatar
Daniel Kang committed
357
}
358

359
int vp9_sby_is_skippable_32x32(MACROBLOCKD *xd) {
360
  return (!xd->eobs[0]);
361
362
363
}

int vp9_sbuv_is_skippable_16x16(MACROBLOCKD *xd) {
364
  return (!xd->eobs[64]) & (!xd->eobs[80]);
365
366
367
368
369
370
371
}

static int sb_is_skippable_32x32(MACROBLOCKD *xd) {
  return vp9_sby_is_skippable_32x32(xd) &&
         vp9_sbuv_is_skippable_16x16(xd);
}

372
int vp9_sby_is_skippable_16x16(MACROBLOCKD *xd) {
373
374
375
376
377
378
379
380
381
382
  int skip = 1;
  int i = 0;

  for (i = 0; i < 64; i += 16)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb_is_skippable_16x16(MACROBLOCKD *xd) {
383
  return vp9_sby_is_skippable_16x16(xd) & vp9_sbuv_is_skippable_16x16(xd);
384
385
}

386
int vp9_sby_is_skippable_8x8(MACROBLOCKD *xd) {
387
388
389
390
391
392
393
394
395
  int skip = 1;
  int i = 0;

  for (i = 0; i < 64; i += 4)
    skip &= (!xd->eobs[i]);

  return skip;
}

396
int vp9_sbuv_is_skippable_8x8(MACROBLOCKD *xd) {
397
398
399
400
401
402
403
404
405
406
  int skip = 1;
  int i = 0;

  for (i = 64; i < 96; i += 4)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb_is_skippable_8x8(MACROBLOCKD *xd) {
407
  return vp9_sby_is_skippable_8x8(xd) & vp9_sbuv_is_skippable_8x8(xd);
408
409
}

410
int vp9_sby_is_skippable_4x4(MACROBLOCKD *xd) {
411
412
413
414
415
416
417
418
419
  int skip = 1;
  int i = 0;

  for (i = 0; i < 64; i++)
    skip &= (!xd->eobs[i]);

  return skip;
}

420
int vp9_sbuv_is_skippable_4x4(MACROBLOCKD *xd) {
421
422
423
424
425
426
427
428
429
430
  int skip = 1;
  int i = 0;

  for (i = 64; i < 96; i++)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb_is_skippable_4x4(MACROBLOCKD *xd) {
431
  return vp9_sby_is_skippable_4x4(xd) & vp9_sbuv_is_skippable_4x4(xd);
432
433
}

434
435
436
437
438
439
440
441
442
void vp9_tokenize_sb(VP9_COMP *cpi,
                     MACROBLOCKD *xd,
                     TOKENEXTRA **t,
                     int dry_run) {
  VP9_COMMON * const cm = &cpi->common;
  MB_MODE_INFO * const mbmi = &xd->mode_info_context->mbmi;
  TOKENEXTRA *t_backup = *t;
  const int mb_skip_context = vp9_get_pred_context(cm, xd, PRED_MBSKIP);
  const int segment_id = mbmi->segment_id;
Paul Wilkins's avatar
Paul Wilkins committed
443
  const int skip_inc = !vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP);
444
445
  int b;

446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
  switch (mbmi->txfm_size) {
    case TX_32X32:
      mbmi->mb_skip_coeff = sb_is_skippable_32x32(xd);
      break;
    case TX_16X16:
      mbmi->mb_skip_coeff = sb_is_skippable_16x16(xd);
      break;
    case TX_8X8:
      mbmi->mb_skip_coeff = sb_is_skippable_8x8(xd);
      break;
    case TX_4X4:
      mbmi->mb_skip_coeff = sb_is_skippable_4x4(xd);
      break;
    default: assert(0);
  }
461
462
463
464
465
466
467

  if (mbmi->mb_skip_coeff) {
    if (!dry_run)
      cpi->skip_true_count[mb_skip_context] += skip_inc;
    if (!cm->mb_no_coeff_skip) {
      vp9_stuff_sb(cpi, xd, t, dry_run);
    } else {
468
      vp9_reset_sb_tokens_context(xd);
469
470
471
472
473
474
475
476
477
    }
    if (dry_run)
      *t = t_backup;
    return;
  }

  if (!dry_run)
    cpi->skip_false_count[mb_skip_context] += skip_inc;

478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
  switch (mbmi->txfm_size) {
    case TX_32X32:
      tokenize_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC,
                 TX_32X32, dry_run);
      for (b = 64; b < 96; b += 16)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_16X16, dry_run);
      break;
    case TX_16X16:
      for (b = 0; b < 64; b += 16)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_16X16, dry_run);
      for (b = 64; b < 96; b += 16)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_16X16, dry_run);
      break;
    case TX_8X8:
      for (b = 0; b < 64; b += 4)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_8X8, dry_run);
      for (b = 64; b < 96; b += 4)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_8X8, dry_run);
      break;
    case TX_4X4:
      for (b = 0; b < 64; b++)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_4X4, dry_run);
      for (b = 64; b < 96; b++)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_4X4, dry_run);
      break;
    default: assert(0);
  }
512

513
514
515
516
  if (dry_run)
    *t = t_backup;
}

517
int vp9_sb64y_is_skippable_32x32(MACROBLOCKD *xd) {
518
519
520
521
522
523
524
525
526
527
528
529
530
531
  int skip = 1;
  int i = 0;

  for (i = 0; i < 256; i += 64)
    skip &= (!xd->eobs[i]);

  return skip;
}

int vp9_sb64uv_is_skippable_32x32(MACROBLOCKD *xd) {
  return (!xd->eobs[256]) & (!xd->eobs[320]);
}

static int sb64_is_skippable_32x32(MACROBLOCKD *xd) {
532
  return vp9_sb64y_is_skippable_32x32(xd) & vp9_sb64uv_is_skippable_32x32(xd);
533
534
}

535
int vp9_sb64y_is_skippable_16x16(MACROBLOCKD *xd) {
536
537
538
539
540
541
542
543
544
  int skip = 1;
  int i = 0;

  for (i = 0; i < 256; i += 16)
    skip &= (!xd->eobs[i]);

  return skip;
}

545
int vp9_sb64uv_is_skippable_16x16(MACROBLOCKD *xd) {
546
547
548
549
550
551
552
553
554
555
  int skip = 1;
  int i = 0;

  for (i = 256; i < 384; i += 16)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb64_is_skippable_16x16(MACROBLOCKD *xd) {
556
  return vp9_sb64y_is_skippable_16x16(xd) & vp9_sb64uv_is_skippable_16x16(xd);
557
558
}

559
int vp9_sb64y_is_skippable_8x8(MACROBLOCKD *xd) {
560
561
562
563
564
565
566
567
568
  int skip = 1;
  int i = 0;

  for (i = 0; i < 256; i += 4)
    skip &= (!xd->eobs[i]);

  return skip;
}

569
int vp9_sb64uv_is_skippable_8x8(MACROBLOCKD *xd) {
570
571
572
573
574
575
576
577
578
579
  int skip = 1;
  int i = 0;

  for (i = 256; i < 384; i += 4)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb64_is_skippable_8x8(MACROBLOCKD *xd) {
580
  return vp9_sb64y_is_skippable_8x8(xd) & vp9_sb64uv_is_skippable_8x8(xd);
581
582
}

583
int vp9_sb64y_is_skippable_4x4(MACROBLOCKD *xd) {
584
585
586
587
588
589
590
591
592
  int skip = 1;
  int i = 0;

  for (i = 0; i < 256; i++)
    skip &= (!xd->eobs[i]);

  return skip;
}

593
int vp9_sb64uv_is_skippable_4x4(MACROBLOCKD *xd) {
594
595
596
597
598
599
600
601
602
603
  int skip = 1;
  int i = 0;

  for (i = 256; i < 384; i++)
    skip &= (!xd->eobs[i]);

  return skip;
}

static int sb64_is_skippable_4x4(MACROBLOCKD *xd) {
604
  return vp9_sb64y_is_skippable_4x4(xd) & vp9_sb64uv_is_skippable_4x4(xd);
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
}

void vp9_tokenize_sb64(VP9_COMP *cpi,
                       MACROBLOCKD *xd,
                       TOKENEXTRA **t,
                       int dry_run) {
  VP9_COMMON * const cm = &cpi->common;
  MB_MODE_INFO * const mbmi = &xd->mode_info_context->mbmi;
  TOKENEXTRA *t_backup = *t;
  const int mb_skip_context = vp9_get_pred_context(cm, xd, PRED_MBSKIP);
  const int segment_id = mbmi->segment_id;
  const int skip_inc = !vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP);
  int b;

  switch (mbmi->txfm_size) {
    case TX_32X32:
      mbmi->mb_skip_coeff = sb64_is_skippable_32x32(xd);
      break;
    case TX_16X16:
      mbmi->mb_skip_coeff = sb64_is_skippable_16x16(xd);
      break;
    case TX_8X8:
      mbmi->mb_skip_coeff = sb64_is_skippable_8x8(xd);
      break;
    case TX_4X4:
      mbmi->mb_skip_coeff = sb64_is_skippable_4x4(xd);
      break;
    default: assert(0);
  }

  if (mbmi->mb_skip_coeff) {
    if (!dry_run)
      cpi->skip_true_count[mb_skip_context] += skip_inc;
    if (!cm->mb_no_coeff_skip) {
      vp9_stuff_sb64(cpi, xd, t, dry_run);
    } else {
      vp9_reset_sb64_tokens_context(xd);
    }
    if (dry_run)
      *t = t_backup;
    return;
  }

  if (!dry_run)
    cpi->skip_false_count[mb_skip_context] += skip_inc;

  switch (mbmi->txfm_size) {
    case TX_32X32:
      for (b = 0; b < 256; b += 64)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_32X32, dry_run);
      for (b = 256; b < 384; b += 64)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_32X32, dry_run);
      break;
    case TX_16X16:
      for (b = 0; b < 256; b += 16)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_16X16, dry_run);
      for (b = 256; b < 384; b += 16)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_16X16, dry_run);
      break;
    case TX_8X8:
      for (b = 0; b < 256; b += 4)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_8X8, dry_run);
      for (b = 256; b < 384; b += 4)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_8X8, dry_run);
      break;
    case TX_4X4:
      for (b = 0; b < 256; b++)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC,
                   TX_4X4, dry_run);
      for (b = 256; b < 384; b++)
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
                   TX_4X4, dry_run);
      break;
    default: assert(0);
685
  }
686

687
688
689
690
  if (dry_run)
    *t = t_backup;
}

691
void vp9_tokenize_mb(VP9_COMP *cpi,
Paul Wilkins's avatar
Paul Wilkins committed
692
                     MACROBLOCKD *xd,
693
694
                     TOKENEXTRA **t,
                     int dry_run) {
John Koleszar's avatar
John Koleszar committed
695
  int b;
696
  int tx_size = xd->mode_info_context->mbmi.txfm_size;
Paul Wilkins's avatar
Paul Wilkins committed
697
  int mb_skip_context = vp9_get_pred_context(&cpi->common, xd, PRED_MBSKIP);
698
  TOKENEXTRA *t_backup = *t;
Paul Wilkins's avatar
Paul Wilkins committed
699

John Koleszar's avatar
John Koleszar committed
700
701
702
703
  // If the MB is going to be skipped because of a segment level flag
  // exclude this from the skip count stats used to calculate the
  // transmitted skip probability;
  int skip_inc;
Paul Wilkins's avatar
Paul Wilkins committed
704
  int segment_id = xd->mode_info_context->mbmi.segment_id;
705

Paul Wilkins's avatar
Paul Wilkins committed
706
  if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
John Koleszar's avatar
John Koleszar committed
707
708
709
    skip_inc = 1;
  } else
    skip_inc = 0;
710

711
  switch (tx_size) {
Daniel Kang's avatar
Daniel Kang committed
712
    case TX_16X16:
713

Daniel Kang's avatar
Daniel Kang committed
714
      xd->mode_info_context->mbmi.mb_skip_coeff = mb_is_skippable_16x16(xd);
Daniel Kang's avatar
Daniel Kang committed
715
716
      break;
    case TX_8X8:
717
718
      if (xd->mode_info_context->mbmi.mode == I8X8_PRED ||
          xd->mode_info_context->mbmi.mode == SPLITMV)
719
        xd->mode_info_context->mbmi.mb_skip_coeff =
720
            mb_is_skippable_8x8_4x4uv(xd);
Deb Mukherjee's avatar
Deb Mukherjee committed
721
      else
722
        xd->mode_info_context->mbmi.mb_skip_coeff =
723
            mb_is_skippable_8x8(xd);
Daniel Kang's avatar
Daniel Kang committed
724
      break;
Deb Mukherjee's avatar
Deb Mukherjee committed
725

Daniel Kang's avatar
Daniel Kang committed
726
    default:
727
      xd->mode_info_context->mbmi.mb_skip_coeff =
728
          mb_is_skippable_4x4(xd);
Daniel Kang's avatar
Daniel Kang committed
729
730
      break;
  }
731

Paul Wilkins's avatar
Paul Wilkins committed
732
  if (xd->mode_info_context->mbmi.mb_skip_coeff) {
733
734
    if (!dry_run)
      cpi->skip_true_count[mb_skip_context] += skip_inc;
John Koleszar's avatar
John Koleszar committed
735
    if (!cpi->common.mb_no_coeff_skip) {
736
      vp9_stuff_mb(cpi, xd, t, dry_run);
John Koleszar's avatar
John Koleszar committed
737
    } else {
Yaowu Xu's avatar
Yaowu Xu committed
738
      vp9_reset_mb_tokens_context(xd);
John Koleszar's avatar
John Koleszar committed
739
    }
Yaowu Xu's avatar
Yaowu Xu committed
740

741
742
    if (dry_run)
      *t = t_backup;
John Koleszar's avatar
John Koleszar committed
743
744
745
    return;
  }

746
747
  if (!dry_run)
    cpi->skip_false_count[mb_skip_context] += skip_inc;
748

749
  if (tx_size == TX_16X16) {
Yaowu Xu's avatar
Yaowu Xu committed
750
    tokenize_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC, TX_16X16, dry_run);
Daniel Kang's avatar
Daniel Kang committed
751
    for (b = 16; b < 24; b += 4) {
Yaowu Xu's avatar
Yaowu Xu committed
752
      tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
Daniel Kang's avatar
Daniel Kang committed
753
    }
754
  } else if (tx_size == TX_8X8) {
John Koleszar's avatar
John Koleszar committed
755
    for (b = 0; b < 16; b += 4) {
756
      tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_8X8, dry_run);
John Koleszar's avatar
John Koleszar committed
757
    }
758
759
    if (xd->mode_info_context->mbmi.mode == I8X8_PRED ||
        xd->mode_info_context->mbmi.mode == SPLITMV) {
760
      for (b = 16; b < 24; b++) {
Yaowu Xu's avatar
Yaowu Xu committed
761
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
762
      }
763
    } else {
Deb Mukherjee's avatar
Deb Mukherjee committed
764
      for (b = 16; b < 24; b += 4) {
Yaowu Xu's avatar
Yaowu Xu committed
765
        tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_8X8, dry_run);
Deb Mukherjee's avatar
Deb Mukherjee committed
766
      }
767
    }
Jingning Han's avatar
Jingning Han committed
768
  } else {
769
770
771
772
    for (b = 0; b < 16; b++)
      tokenize_b(cpi, xd, b, t, PLANE_TYPE_Y_WITH_DC, TX_4X4, dry_run);
    for (b = 16; b < 24; b++)
      tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_4X4, dry_run);
Jingning Han's avatar
Jingning Han committed
773
  }
774
775
  if (dry_run)
    *t = t_backup;
John Koleszar's avatar
John Koleszar committed
776
}
777

John Koleszar's avatar
John Koleszar committed
778
#ifdef ENTROPY_STATS
John Koleszar's avatar
John Koleszar committed
779
780
781
void init_context_counters(void) {
  FILE *f = fopen("context.bin", "rb");
  if (!f) {
782
    vpx_memset(context_counters_4x4, 0, sizeof(context_counters_4x4));
John Koleszar's avatar
John Koleszar committed
783
    vpx_memset(context_counters_8x8, 0, sizeof(context_counters_8x8));
Daniel Kang's avatar
Daniel Kang committed
784
    vpx_memset(context_counters_16x16, 0, sizeof(context_counters_16x16));
785
    vpx_memset(context_counters_32x32, 0, sizeof(context_counters_32x32));
John Koleszar's avatar
John Koleszar committed
786
  } else {
787
    fread(context_counters_4x4, sizeof(context_counters_4x4), 1, f);
John Koleszar's avatar
John Koleszar committed
788
    fread(context_counters_8x8, sizeof(context_counters_8x8), 1, f);
Daniel Kang's avatar
Daniel Kang committed
789
    fread(context_counters_16x16, sizeof(context_counters_16x16), 1, f);
790
    fread(context_counters_32x32, sizeof(context_counters_32x32), 1, f);
John Koleszar's avatar
John Koleszar committed
791
792
793
794
795
    fclose(f);
  }

  f = fopen("treeupdate.bin", "rb");
  if (!f) {
796
    vpx_memset(tree_update_hist_4x4, 0, sizeof(tree_update_hist_4x4));
John Koleszar's avatar
John Koleszar committed
797
    vpx_memset(tree_update_hist_8x8, 0, sizeof(tree_update_hist_8x8));
Daniel Kang's avatar
Daniel Kang committed
798
    vpx_memset(tree_update_hist_16x16, 0, sizeof(tree_update_hist_16x16));
799
    vpx_memset(tree_update_hist_32x32, 0, sizeof(tree_update_hist_32x32));
John Koleszar's avatar
John Koleszar committed
800
  } else {
801
    fread(tree_update_hist_4x4, sizeof(tree_update_hist_4x4), 1, f);
John Koleszar's avatar
John Koleszar committed
802
    fread(tree_update_hist_8x8, sizeof(tree_update_hist_8x8), 1, f);
Daniel Kang's avatar
Daniel Kang committed
803
    fread(tree_update_hist_16x16, sizeof(tree_update_hist_16x16), 1, f);
804
    fread(tree_update_hist_32x32, sizeof(tree_update_hist_32x32), 1, f);
John Koleszar's avatar
John Koleszar committed
805
806
    fclose(f);
  }
John Koleszar's avatar
John Koleszar committed
807
808
}

809
810
static void print_counter(FILE *f, vp9_coeff_accum *context_counters,
                          int block_types, const char *header) {
811
  int type, ref, band, pt, t;
John Koleszar's avatar
John Koleszar committed
812

813
  fprintf(f, "static const vp9_coeff_count %s = {\n", header);
John Koleszar's avatar
John Koleszar committed
814

815
#define Comma(X) (X ? "," : "")
John Koleszar's avatar
John Koleszar committed
816
817
  type = 0;
  do {
818
    ref = 0;
John Koleszar's avatar
John Koleszar committed
819
820
    fprintf(f, "%s\n  { /* block Type %d */", Comma(type), type);
    do {
821
822
      fprintf(f, "%s\n    { /* %s */", Comma(type), ref ? "Inter" : "Intra");
      band = 0;
John Koleszar's avatar
John Koleszar committed
823
      do {
824
825
        fprintf(f, "%s\n      { /* Coeff Band %d */", Comma(band), band);
        pt = 0;
John Koleszar's avatar
John Koleszar committed
826
        do {
827
828
829
830
831
832
833
834
835
836
837
838
839
840
          fprintf(f, "%s\n        {", Comma(pt));

          t = 0;
          do {
            const int64_t x = context_counters[type][ref][band][pt][t];
            const int y = (int) x;

            assert(x == (int64_t) y);  /* no overflow handling yet */
            fprintf(f, "%s %d", Comma(t), y);
          } while (++t < MAX_ENTROPY_TOKENS);
          fprintf(f, "}");
        } while (++pt < PREV_COEF_CONTEXTS);
        fprintf(f, "\n      }");
      } while (++band < COEF_BANDS);
John Koleszar's avatar
John Koleszar committed
841
      fprintf(f, "\n    }");
842
    } while (++ref < REF_TYPES);
John Koleszar's avatar
John Koleszar committed
843
    fprintf(f, "\n  }");
844
  } while (++type < block_types);
Daniel Kang's avatar
Daniel Kang committed
845
  fprintf(f, "\n};\n");
846
}
847

848
849
static void print_probs(FILE *f, vp9_coeff_accum *context_counters,
                        int block_types, const char *header) {
850
  int type, ref, band, pt, t;
Daniel Kang's avatar
Daniel Kang committed
851

852
  fprintf(f, "static const vp9_coeff_probs %s = {", header);
853

John Koleszar's avatar
John Koleszar committed
854
  type = 0;
855
#define Newline(x, spaces) (x ? " " : "\n" spaces)
John Koleszar's avatar
John Koleszar committed
856
  do {
857
858
    fprintf(f, "%s%s{ /* block Type %d */",
            Comma(type), Newline(type, "  "), type);
859
    ref = 0;
John Koleszar's avatar
John Koleszar committed
860
    do {
861
862
863
      fprintf(f, "%s%s{ /* %s */",
              Comma(band), Newline(band, "    "), ref ? "Inter" : "Intra");
      band = 0;
John Koleszar's avatar
John Koleszar committed
864
      do {
865
866
867
        fprintf(f, "%s%s{ /* Coeff Band %d */",
                Comma(band), Newline(band, "      "), band);
        pt = 0;
John Koleszar's avatar
John Koleszar committed
868
        do {
869
870
871
872
873
874
          unsigned int branch_ct[ENTROPY_NODES][2];
          unsigned int coef_counts[MAX_ENTROPY_TOKENS];
          vp9_prob coef_probs[ENTROPY_NODES];

          for (t = 0; t < MAX_ENTROPY_TOKENS; ++t)
            coef_counts[t] = context_counters[type][ref][band][pt][t];
875
876
          vp9_tree_probs_from_distribution(vp9_coef_tree, coef_probs,
                                           branch_ct, coef_counts, 0);
877
878
879
880
881
882
883
884
885
886
887
          fprintf(f, "%s\n      {", Comma(pt));

          t = 0;
          do {
            fprintf(f, "%s %3d", Comma(t), coef_probs[t]);
          } while (++t < ENTROPY_NODES);

          fprintf(f, " }");
        } while (++pt < PREV_COEF_CONTEXTS);
        fprintf(f, "\n      }");
      } while (++band < COEF_BANDS);
John Koleszar's avatar
John Koleszar committed
888
      fprintf(f, "\n    }");
889
    } while (++ref < REF_TYPES);
John Koleszar's avatar
John Koleszar committed
890
    fprintf(f, "\n  }");
891
  } while (++type < block_types);
John Koleszar's avatar
John Koleszar committed
892
  fprintf(f, "\n};\n");
893
}
894

895
896
void print_context_counters() {
  FILE *f = fopen("vp9_context.c", "w");
897

898
899
  fprintf(f, "#include \"vp9_entropy.h\"\n");
  fprintf(f, "\n/* *** GENERATED FILE: DO NOT EDIT *** */\n\n");
John Koleszar's avatar
John Koleszar committed
900

901
  /* print counts */
902
  print_counter(f, context_counters_4x4, BLOCK_TYPES,
903
                "vp9_default_coef_counts_4x4[BLOCK_TYPES]");
904
  print_counter(f, context_counters_8x8, BLOCK_TYPES,
905
                "vp9_default_coef_counts_8x8[BLOCK_TYPES]");
906
  print_counter(f, context_counters_16x16, BLOCK_TYPES,
907
908
909
                "vp9_default_coef_counts_16x16[BLOCK_TYPES]");
  print_counter(f, context_counters_32x32, BLOCK_TYPES,
                "vp9_default_coef_counts_32x32[BLOCK_TYPES]");
Daniel Kang's avatar
Daniel Kang committed
910

911
  /* print coefficient probabilities */
912
  print_probs(f, context_counters_4x4, BLOCK_TYPES,
913
              "default_coef_probs_4x4[BLOCK_TYPES]");
914
  print_probs(f, context_counters_8x8, BLOCK_TYPES,
915
              "default_coef_probs_8x8[BLOCK_TYPES]");
916
  print_probs(f, context_counters_16x16, BLOCK_TYPES,
917
918
919
              "default_coef_probs_16x16[BLOCK_TYPES]");
  print_probs(f, context_counters_32x32, BLOCK_TYPES,
              "default_coef_probs_32x32[BLOCK_TYPES]");
Daniel Kang's avatar
Daniel Kang committed
920

John Koleszar's avatar
John Koleszar committed
921
922
923
  fclose(f);

  f = fopen("context.bin", "wb");
924
  fwrite(context_counters_4x4, sizeof(context_counters_4x4), 1, f);
John Koleszar's avatar
John Koleszar committed
925
  fwrite(context_counters_8x8, sizeof(context_counters_8x8), 1, f);
Daniel Kang's avatar
Daniel Kang committed
926
  fwrite(context_counters_16x16, sizeof(context_counters_16x16), 1, f);
927
  fwrite(context_counters_32x32, sizeof(context_counters_32x32), 1, f);
John Koleszar's avatar
John Koleszar committed
928
  fclose(f);
John Koleszar's avatar
John Koleszar committed
929
930
931
}
#endif

932
void vp9_tokenize_initialize() {
John Koleszar's avatar
John Koleszar committed
933
  fill_value_tokens();
John Koleszar's avatar
John Koleszar committed
934
935
}

936
937
938
939
940
941
942
static void stuff_b(VP9_COMP *cpi,
                    MACROBLOCKD *xd,
                    const int ib,
                    TOKENEXTRA **tp,
                    PLANE_TYPE type,
                    TX_SIZE tx_size,
                    int dry_run) {
943
944
945
  MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
  const BLOCK_SIZE_TYPE sb_type = mbmi->sb_type;
#if CONFIG_CODE_NONZEROCOUNT == 0
946
947
  vp9_coeff_count *counts;
  vp9_coeff_probs *probs;
948
949
  int pt, band;
  TOKENEXTRA *t = *tp;
950
  const int ref = mbmi->ref_frame != INTRA_FRAME;
951
#endif
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
  ENTROPY_CONTEXT *a, *l, *a1, *l1, *a2, *l2, *a3, *l3, a_ec, l_ec;

  if (sb_type == BLOCK_SIZE_SB32X32) {
    a = (ENTROPY_CONTEXT *)xd->above_context +
                                             vp9_block2above_sb64[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left_sb64[tx_size][ib];
    a1 = a + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l1 = l + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a2 = a1 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l2 = l1 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a3 = a2 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l3 = l2 + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
  } else if (sb_type == BLOCK_SIZE_SB32X32) {
    a = (ENTROPY_CONTEXT *)xd->above_context + vp9_block2above_sb[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left_sb[tx_size][ib];
    a1 = a + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    l1 = l + sizeof(ENTROPY_CONTEXT_PLANES) / sizeof(ENTROPY_CONTEXT);
    a2 = l2 = a3 = l3 = NULL;
  } else {
    a = (ENTROPY_CONTEXT *)xd->above_context + vp9_block2above[tx_size][ib];
    l = (ENTROPY_CONTEXT *)xd->left_context + vp9_block2left[tx_size][ib];
    a1 = l1 = a2 = l2 = a3 = l3 = NULL;
  }
John Koleszar's avatar
John Koleszar committed
975

976
977
978
  switch (tx_size) {
    default:
    case TX_4X4:
979
980
      a_ec = a[0];
      l_ec = l[0];
981
#if CONFIG_CODE_NONZEROCOUNT == 0
982
983
      counts = cpi->coef_counts_4x4;
      probs = cpi->common.fc.coef_probs_4x4;
984
#endif
985
986
      break;
    case TX_8X8:
987
988
      a_ec = (a[0] + a[1]) != 0;
      l_ec = (l[0] + l[1]) != 0;
989
#if CONFIG_CODE_NONZEROCOUNT == 0