bitstream.c 179 KB
Newer Older
Jingning Han's avatar
Jingning Han committed
1
/*
Yaowu Xu's avatar
Yaowu Xu committed
2
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
Jingning Han's avatar
Jingning Han committed
3
 *
Yaowu Xu's avatar
Yaowu Xu committed
4 5 6 7 8 9
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
Jingning Han's avatar
Jingning Han committed
10 11 12 13
 */

#include <assert.h>
#include <limits.h>
14
#include <stdio.h>
Jingning Han's avatar
Jingning Han committed
15

Yaowu Xu's avatar
Yaowu Xu committed
16
#include "aom/aom_encoder.h"
17
#include "aom_dsp/bitwriter_buffer.h"
Yaowu Xu's avatar
Yaowu Xu committed
18
#include "aom_dsp/aom_dsp_common.h"
19
#include "aom_dsp/binary_codes_writer.h"
Yaowu Xu's avatar
Yaowu Xu committed
20
#include "aom_mem/aom_mem.h"
21 22
#include "aom_ports/mem_ops.h"
#include "aom_ports/system_state.h"
23
#if CONFIG_BITSTREAM_DEBUG
24
#include "aom_util/debug_util.h"
25
#endif  // CONFIG_BITSTREAM_DEBUG
Jingning Han's avatar
Jingning Han committed
26

27
#if CONFIG_CDEF
28
#include "av1/common/cdef.h"
29
#endif  // CONFIG_CDEF
30 31 32 33
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
#include "av1/common/entropymv.h"
#include "av1/common/mvref_common.h"
34
#include "av1/common/odintrin.h"
35 36
#include "av1/common/pred_common.h"
#include "av1/common/reconinter.h"
hui su's avatar
hui su committed
37 38 39
#if CONFIG_EXT_INTRA
#include "av1/common/reconintra.h"
#endif  // CONFIG_EXT_INTRA
40 41
#include "av1/common/seg_common.h"
#include "av1/common/tile_common.h"
Jingning Han's avatar
Jingning Han committed
42

Angie Chiang's avatar
Angie Chiang committed
43 44 45
#if CONFIG_LV_MAP
#include "av1/encoder/encodetxb.h"
#endif  // CONFIG_LV_MAP
46 47 48 49
#include "av1/encoder/bitstream.h"
#include "av1/encoder/cost.h"
#include "av1/encoder/encodemv.h"
#include "av1/encoder/mcomp.h"
Urvang Joshi's avatar
Urvang Joshi committed
50
#if CONFIG_PALETTE_DELTA_ENCODING
hui su's avatar
hui su committed
51
#include "av1/encoder/palette.h"
Urvang Joshi's avatar
Urvang Joshi committed
52
#endif  // CONFIG_PALETTE_DELTA_ENCODING
53 54 55
#include "av1/encoder/segmentation.h"
#include "av1/encoder/subexp.h"
#include "av1/encoder/tokenize.h"
56 57 58
#if CONFIG_PVQ
#include "av1/encoder/pvq_encoder.h"
#endif
Jingning Han's avatar
Jingning Han committed
59

60
#define ENC_MISMATCH_DEBUG 0
61

62
#if CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
63 64
static struct av1_token
    inter_singleref_comp_mode_encodings[INTER_SINGLEREF_COMP_MODES];
65
#endif  // CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
66

Yaowu Xu's avatar
Yaowu Xu committed
67
static INLINE void write_uniform(aom_writer *w, int n, int v) {
68 69
  const int l = get_unsigned_bits(n);
  const int m = (1 << l) - n;
70
  if (l == 0) return;
hui su's avatar
hui su committed
71
  if (v < m) {
Yaowu Xu's avatar
Yaowu Xu committed
72
    aom_write_literal(w, v, l - 1);
hui su's avatar
hui su committed
73
  } else {
Yaowu Xu's avatar
Yaowu Xu committed
74 75
    aom_write_literal(w, m + ((v - m) >> 1), l - 1);
    aom_write_literal(w, (v - m) & 1, 1);
hui su's avatar
hui su committed
76 77
  }
}
Jingning Han's avatar
Jingning Han committed
78

79
#if CONFIG_EXT_TX
Yaowu Xu's avatar
Yaowu Xu committed
80 81
static struct av1_token ext_tx_inter_encodings[EXT_TX_SETS_INTER][TX_TYPES];
static struct av1_token ext_tx_intra_encodings[EXT_TX_SETS_INTRA][TX_TYPES];
82
#else
Yaowu Xu's avatar
Yaowu Xu committed
83
static struct av1_token ext_tx_encodings[TX_TYPES];
84
#endif  // CONFIG_EXT_TX
85
#if CONFIG_EXT_INTRA
hui su's avatar
hui su committed
86
#if CONFIG_INTRA_INTERP
Yaowu Xu's avatar
Yaowu Xu committed
87
static struct av1_token intra_filter_encodings[INTRA_FILTERS];
hui su's avatar
hui su committed
88
#endif  // CONFIG_INTRA_INTERP
89
#endif  // CONFIG_EXT_INTRA
90
#if CONFIG_EXT_INTER
91
#if CONFIG_INTERINTRA
Yaowu Xu's avatar
Yaowu Xu committed
92
static struct av1_token interintra_mode_encodings[INTERINTRA_MODES];
93
#endif
94
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
95
static struct av1_token compound_type_encodings[COMPOUND_TYPES];
96
#endif  // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
97
#endif  // CONFIG_EXT_INTER
Yue Chen's avatar
Yue Chen committed
98
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
99 100 101
#if CONFIG_NCOBMC_ADAPT_WEIGHT
static struct av1_token ncobmc_mode_encodings[MAX_NCOBMC_MODES];
#endif
Yue Chen's avatar
Yue Chen committed
102
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
103 104 105
#if CONFIG_LOOP_RESTORATION
static struct av1_token switchable_restore_encodings[RESTORE_SWITCHABLE_TYPES];
#endif  // CONFIG_LOOP_RESTORATION
106 107 108
static void write_uncompressed_header(AV1_COMP *cpi,
                                      struct aom_write_bit_buffer *wb);
static uint32_t write_compressed_header(AV1_COMP *cpi, uint8_t *data);
109 110 111 112 113
static int remux_tiles(const AV1_COMMON *const cm, uint8_t *dst,
                       const uint32_t data_size, const uint32_t max_tile_size,
                       const uint32_t max_tile_col_size,
                       int *const tile_size_bytes,
                       int *const tile_col_size_bytes);
114

Yaowu Xu's avatar
Yaowu Xu committed
115
void av1_encode_token_init(void) {
116
#if CONFIG_EXT_TX
117
  int s;
118
#endif  // CONFIG_EXT_TX
119
#if CONFIG_EXT_TX
120
  for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
Yaowu Xu's avatar
Yaowu Xu committed
121
    av1_tokens_from_tree(ext_tx_inter_encodings[s], av1_ext_tx_inter_tree[s]);
122 123
  }
  for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
Yaowu Xu's avatar
Yaowu Xu committed
124
    av1_tokens_from_tree(ext_tx_intra_encodings[s], av1_ext_tx_intra_tree[s]);
125
  }
126
#else
Yaowu Xu's avatar
Yaowu Xu committed
127
  av1_tokens_from_tree(ext_tx_encodings, av1_ext_tx_tree);
128
#endif  // CONFIG_EXT_TX
129

130
#if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
Yaowu Xu's avatar
Yaowu Xu committed
131
  av1_tokens_from_tree(intra_filter_encodings, av1_intra_filter_tree);
132
#endif  // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
133
#if CONFIG_EXT_INTER
134
#if CONFIG_INTERINTRA
Yaowu Xu's avatar
Yaowu Xu committed
135
  av1_tokens_from_tree(interintra_mode_encodings, av1_interintra_mode_tree);
136
#endif  // CONFIG_INTERINTRA
137 138 139 140
#if CONFIG_COMPOUND_SINGLEREF
  av1_tokens_from_tree(inter_singleref_comp_mode_encodings,
                       av1_inter_singleref_comp_mode_tree);
#endif  // CONFIG_COMPOUND_SINGLEREF
141
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
142
  av1_tokens_from_tree(compound_type_encodings, av1_compound_type_tree);
143
#endif  // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
144
#endif  // CONFIG_EXT_INTER
Yue Chen's avatar
Yue Chen committed
145
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
146 147 148
#if CONFIG_NCOBMC_ADAPT_WEIGHT
  av1_tokens_from_tree(ncobmc_mode_encodings, av1_ncobmc_mode_tree);
#endif
Yue Chen's avatar
Yue Chen committed
149
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
150 151 152 153
#if CONFIG_LOOP_RESTORATION
  av1_tokens_from_tree(switchable_restore_encodings,
                       av1_switchable_restore_tree);
#endif  // CONFIG_LOOP_RESTORATION
154

155
  /* This hack is necessary when CONFIG_DUAL_FILTER is enabled because the five
156 157 158
      SWITCHABLE_FILTERS are not consecutive, e.g., 0, 1, 2, 3, 4, when doing
      an in-order traversal of the av1_switchable_interp_tree structure. */
  av1_indices_from_tree(av1_switchable_interp_ind, av1_switchable_interp_inv,
Jingning Han's avatar
Jingning Han committed
159
                        av1_switchable_interp_tree);
160 161 162
/* This hack is necessary because the four TX_TYPES are not consecutive,
    e.g., 0, 1, 2, 3, when doing an in-order traversal of the av1_ext_tx_tree
    structure. */
163 164 165
#if CONFIG_EXT_TX
  for (s = 1; s < EXT_TX_SETS_INTRA; ++s)
    av1_indices_from_tree(av1_ext_tx_intra_ind[s], av1_ext_tx_intra_inv[s],
Jingning Han's avatar
Jingning Han committed
166
                          av1_ext_tx_intra_tree[s]);
167 168
  for (s = 1; s < EXT_TX_SETS_INTER; ++s)
    av1_indices_from_tree(av1_ext_tx_inter_ind[s], av1_ext_tx_inter_inv[s],
Jingning Han's avatar
Jingning Han committed
169
                          av1_ext_tx_inter_tree[s]);
170
#else
Jingning Han's avatar
Jingning Han committed
171
  av1_indices_from_tree(av1_ext_tx_ind, av1_ext_tx_inv, av1_ext_tx_tree);
David Barker's avatar
David Barker committed
172
#endif
173 174
}

Jingning Han's avatar
Jingning Han committed
175 176 177 178
static void write_intra_mode_kf(const AV1_COMMON *cm, FRAME_CONTEXT *frame_ctx,
                                const MODE_INFO *mi, const MODE_INFO *above_mi,
                                const MODE_INFO *left_mi, int block,
                                PREDICTION_MODE mode, aom_writer *w) {
Alex Converse's avatar
Alex Converse committed
179 180 181
#if CONFIG_INTRABC
  assert(!is_intrabc_block(&mi->mbmi));
#endif  // CONFIG_INTRABC
Jingning Han's avatar
Jingning Han committed
182 183 184 185 186
  aom_write_symbol(w, av1_intra_mode_ind[mode],
                   get_y_mode_cdf(frame_ctx, mi, above_mi, left_mi, block),
                   INTRA_MODES);
  (void)cm;
}
Jingning Han's avatar
Jingning Han committed
187

188
static void write_inter_mode(aom_writer *w, PREDICTION_MODE mode,
189
                             FRAME_CONTEXT *ec_ctx, const int16_t mode_ctx) {
190
  const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK;
Yue Chen's avatar
Yue Chen committed
191

192 193 194 195 196
#if CONFIG_NEW_MULTISYMBOL
  aom_write_symbol(w, mode != NEWMV, ec_ctx->newmv_cdf[newmv_ctx], 2);
#else
  aom_write(w, mode != NEWMV, ec_ctx->newmv_prob[newmv_ctx]);
#endif
197

Jingning Han's avatar
Jingning Han committed
198
  if (mode != NEWMV) {
199 200 201 202 203
    if (mode_ctx & (1 << ALL_ZERO_FLAG_OFFSET)) {
      assert(mode == ZEROMV);
      return;
    }

204 205 206 207 208 209
    const int16_t zeromv_ctx = (mode_ctx >> ZEROMV_OFFSET) & ZEROMV_CTX_MASK;
#if CONFIG_NEW_MULTISYMBOL
    aom_write_symbol(w, mode != ZEROMV, ec_ctx->zeromv_cdf[zeromv_ctx], 2);
#else
    aom_write(w, mode != ZEROMV, ec_ctx->zeromv_prob[zeromv_ctx]);
#endif
210 211

    if (mode != ZEROMV) {
212 213
      int16_t refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;

214 215 216
      if (mode_ctx & (1 << SKIP_NEARESTMV_OFFSET)) refmv_ctx = 6;
      if (mode_ctx & (1 << SKIP_NEARMV_OFFSET)) refmv_ctx = 7;
      if (mode_ctx & (1 << SKIP_NEARESTMV_SUB8X8_OFFSET)) refmv_ctx = 8;
217 218 219 220 221
#if CONFIG_NEW_MULTISYMBOL
      aom_write_symbol(w, mode != NEARESTMV, ec_ctx->refmv_cdf[refmv_ctx], 2);
#else
      aom_write(w, mode != NEARESTMV, ec_ctx->refmv_prob[refmv_ctx]);
#endif
222 223
    }
  }
Jingning Han's avatar
Jingning Han committed
224 225
}

226
static void write_drl_idx(FRAME_CONTEXT *ec_ctx, const MB_MODE_INFO *mbmi,
Yaowu Xu's avatar
Yaowu Xu committed
227 228
                          const MB_MODE_INFO_EXT *mbmi_ext, aom_writer *w) {
  uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
229 230 231

  assert(mbmi->ref_mv_idx < 3);

232
#if CONFIG_EXT_INTER
233 234 235 236
#if CONFIG_COMPOUND_SINGLEREF
  if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV ||
      mbmi->mode == SR_NEW_NEWMV) {
#else   // !CONFIG_COMPOUND_SINGLEREF
237
  if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) {
238 239
#endif  // CONFIG_COMPOUND_SINGLEREF
#else   // !CONFIG_EXT_INTER
240
  if (mbmi->mode == NEWMV) {
241
#endif  // CONFIG_EXT_INTER
242 243 244 245
    int idx;
    for (idx = 0; idx < 2; ++idx) {
      if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) {
        uint8_t drl_ctx =
Yaowu Xu's avatar
Yaowu Xu committed
246
            av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
247

248 249 250 251 252 253
#if CONFIG_NEW_MULTISYMBOL
        aom_write_symbol(w, mbmi->ref_mv_idx != idx, ec_ctx->drl_cdf[drl_ctx],
                         2);
#else
        aom_write(w, mbmi->ref_mv_idx != idx, ec_ctx->drl_prob[drl_ctx]);
#endif
254
        if (mbmi->ref_mv_idx == idx) return;
255
      }
256 257 258 259
    }
    return;
  }

David Barker's avatar
David Barker committed
260
  if (have_nearmv_in_inter_mode(mbmi->mode)) {
261 262 263 264 265
    int idx;
    // TODO(jingning): Temporary solution to compensate the NEARESTMV offset.
    for (idx = 1; idx < 3; ++idx) {
      if (mbmi_ext->ref_mv_count[ref_frame_type] > idx + 1) {
        uint8_t drl_ctx =
Yaowu Xu's avatar
Yaowu Xu committed
266
            av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
267 268 269 270 271 272
#if CONFIG_NEW_MULTISYMBOL
        aom_write_symbol(w, mbmi->ref_mv_idx != (idx - 1),
                         ec_ctx->drl_cdf[drl_ctx], 2);
#else
        aom_write(w, mbmi->ref_mv_idx != (idx - 1), ec_ctx->drl_prob[drl_ctx]);
#endif
273
        if (mbmi->ref_mv_idx == (idx - 1)) return;
274
      }
275
    }
276
    return;
277 278 279
  }
}

280
#if CONFIG_EXT_INTER
281 282
static void write_inter_compound_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
                                      aom_writer *w, PREDICTION_MODE mode,
283
                                      const int16_t mode_ctx) {
284 285 286 287 288
  assert(is_inter_compound_mode(mode));
  (void)cm;
  aom_write_symbol(w, INTER_COMPOUND_OFFSET(mode),
                   xd->tile_ctx->inter_compound_mode_cdf[mode_ctx],
                   INTER_COMPOUND_MODES);
289
}
290 291

#if CONFIG_COMPOUND_SINGLEREF
292
static void write_inter_singleref_comp_mode(MACROBLOCKD *xd, aom_writer *w,
293 294 295
                                            PREDICTION_MODE mode,
                                            const int16_t mode_ctx) {
  assert(is_inter_singleref_comp_mode(mode));
296 297
  aom_cdf_prob *const inter_singleref_comp_cdf =
      xd->tile_ctx->inter_singleref_comp_mode_cdf[mode_ctx];
298

299 300
  aom_write_symbol(w, INTER_SINGLEREF_COMP_OFFSET(mode),
                   inter_singleref_comp_cdf, INTER_SINGLEREF_COMP_MODES);
301 302
}
#endif  // CONFIG_COMPOUND_SINGLEREF
303 304
#endif  // CONFIG_EXT_INTER

Yaowu Xu's avatar
Yaowu Xu committed
305
static void encode_unsigned_max(struct aom_write_bit_buffer *wb, int data,
306
                                int max) {
Yaowu Xu's avatar
Yaowu Xu committed
307
  aom_wb_write_literal(wb, data, get_unsigned_bits(max));
Jingning Han's avatar
Jingning Han committed
308 309
}

310
#if CONFIG_NCOBMC_ADAPT_WEIGHT
Yaowu Xu's avatar
Yaowu Xu committed
311 312
static void prob_diff_update(const aom_tree_index *tree,
                             aom_prob probs[/*n - 1*/],
313
                             const unsigned int counts[/* n */], int n,
314
                             int probwt, aom_writer *w) {
Jingning Han's avatar
Jingning Han committed
315 316 317 318 319 320
  int i;
  unsigned int branch_ct[32][2];

  // Assuming max number of probabilities <= 32
  assert(n <= 32);

Yaowu Xu's avatar
Yaowu Xu committed
321
  av1_tree_probs_from_distribution(tree, branch_ct, counts);
Jingning Han's avatar
Jingning Han committed
322
  for (i = 0; i < n - 1; ++i)
323
    av1_cond_prob_diff_update(w, &probs[i], branch_ct[i], probwt);
Jingning Han's avatar
Jingning Han committed
324
}
325 326
#endif

327
#if CONFIG_VAR_TX
328
static void write_tx_size_vartx(const AV1_COMMON *cm, MACROBLOCKD *xd,
329
                                const MB_MODE_INFO *mbmi, TX_SIZE tx_size,
330 331
                                int depth, int blk_row, int blk_col,
                                aom_writer *w) {
332 333 334 335
#if CONFIG_NEW_MULTISYMBOL
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
#endif
336 337
  const int tx_row = blk_row >> 1;
  const int tx_col = blk_col >> 1;
338 339 340
  const int max_blocks_high = max_block_high(xd, mbmi->sb_type, 0);
  const int max_blocks_wide = max_block_wide(xd, mbmi->sb_type, 0);

341 342
  int ctx = txfm_partition_context(xd->above_txfm_context + blk_col,
                                   xd->left_txfm_context + blk_row,
343
                                   mbmi->sb_type, tx_size);
344

345
  if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
346

Jingning Han's avatar
Jingning Han committed
347
  if (depth == MAX_VARTX_DEPTH) {
348 349
    txfm_partition_update(xd->above_txfm_context + blk_col,
                          xd->left_txfm_context + blk_row, tx_size, tx_size);
350 351 352
    return;
  }

Yue Chen's avatar
Yue Chen committed
353 354 355 356
#if CONFIG_RECT_TX_EXT
  if (tx_size == mbmi->inter_tx_size[tx_row][tx_col] ||
      mbmi->tx_size == quarter_txsize_lookup[mbmi->sb_type]) {
#else
357
  if (tx_size == mbmi->inter_tx_size[tx_row][tx_col]) {
Yue Chen's avatar
Yue Chen committed
358
#endif
359 360 361
#if CONFIG_NEW_MULTISYMBOL
    aom_write_symbol(w, 0, ec_ctx->txfm_partition_cdf[ctx], 2);
#else
Yaowu Xu's avatar
Yaowu Xu committed
362
    aom_write(w, 0, cm->fc->txfm_partition_prob[ctx]);
363 364
#endif

365 366
    txfm_partition_update(xd->above_txfm_context + blk_col,
                          xd->left_txfm_context + blk_row, tx_size, tx_size);
Yue Chen's avatar
Yue Chen committed
367
    // TODO(yuec): set correct txfm partition update for qttx
368
  } else {
369 370
    const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
    const int bsl = tx_size_wide_unit[sub_txs];
371
    int i;
372

373 374 375
#if CONFIG_NEW_MULTISYMBOL
    aom_write_symbol(w, 1, ec_ctx->txfm_partition_cdf[ctx], 2);
#else
Yaowu Xu's avatar
Yaowu Xu committed
376
    aom_write(w, 1, cm->fc->txfm_partition_prob[ctx]);
377
#endif
378

David Barker's avatar
David Barker committed
379
    if (sub_txs == TX_4X4) {
380 381
      txfm_partition_update(xd->above_txfm_context + blk_col,
                            xd->left_txfm_context + blk_row, sub_txs, tx_size);
382
      return;
383
    }
384 385 386

    assert(bsl > 0);
    for (i = 0; i < 4; ++i) {
387 388 389 390
      int offsetr = blk_row + (i >> 1) * bsl;
      int offsetc = blk_col + (i & 0x01) * bsl;
      write_tx_size_vartx(cm, xd, mbmi, sub_txs, depth + 1, offsetr, offsetc,
                          w);
391 392 393
    }
  }
}
394

395
#if !CONFIG_NEW_MULTISYMBOL
Yaowu Xu's avatar
Yaowu Xu committed
396
static void update_txfm_partition_probs(AV1_COMMON *cm, aom_writer *w,
397
                                        FRAME_COUNTS *counts, int probwt) {
398 399
  int k;
  for (k = 0; k < TXFM_PARTITION_CONTEXTS; ++k)
Yaowu Xu's avatar
Yaowu Xu committed
400
    av1_cond_prob_diff_update(w, &cm->fc->txfm_partition_prob[k],
401
                              counts->txfm_partition[k], probwt);
402
}
403
#endif  // CONFIG_NEW_MULTISYMBOL
David Barker's avatar
David Barker committed
404
#endif  // CONFIG_VAR_TX
405

Yaowu Xu's avatar
Yaowu Xu committed
406 407
static void write_selected_tx_size(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                                   aom_writer *w) {
408 409
  const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
  const BLOCK_SIZE bsize = mbmi->sb_type;
410 411
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
412
// For sub8x8 blocks the tx_size symbol does not need to be sent
413
#if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX
414 415
  if (bsize > BLOCK_4X4) {
#else
416
  if (bsize >= BLOCK_8X8) {
417
#endif
418 419 420 421 422 423
    const TX_SIZE tx_size = mbmi->tx_size;
    const int is_inter = is_inter_block(mbmi);
    const int tx_size_ctx = get_tx_size_context(xd);
    const int tx_size_cat = is_inter ? inter_tx_size_cat_lookup[bsize]
                                     : intra_tx_size_cat_lookup[bsize];
    const TX_SIZE coded_tx_size = txsize_sqr_up_map[tx_size];
424
    const int depth = tx_size_to_depth(coded_tx_size);
425
#if CONFIG_EXT_TX && CONFIG_RECT_TX
426
    assert(IMPLIES(is_rect_tx(tx_size), is_rect_tx_allowed(xd, mbmi)));
427 428
#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX

429
    aom_write_symbol(w, depth, ec_ctx->tx_size_cdf[tx_size_cat][tx_size_ctx],
430
                     tx_size_cat + 2);
Yue Chen's avatar
Yue Chen committed
431
#if CONFIG_RECT_TX_EXT && (CONFIG_EXT_TX || CONFIG_VAR_TX)
432 433 434
    if (is_quarter_tx_allowed(xd, mbmi, is_inter) && tx_size != coded_tx_size)
      aom_write(w, tx_size == quarter_txsize_lookup[bsize],
                cm->fc->quarter_tx_size_prob);
Yue Chen's avatar
Yue Chen committed
435
#endif
Jingning Han's avatar
Jingning Han committed
436 437 438
  }
}

439
#if !CONFIG_NEW_MULTISYMBOL
Yaowu Xu's avatar
Yaowu Xu committed
440
static void update_inter_mode_probs(AV1_COMMON *cm, aom_writer *w,
441 442
                                    FRAME_COUNTS *counts) {
  int i;
443
  const int probwt = cm->num_tg;
444
  for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
445 446
    av1_cond_prob_diff_update(w, &cm->fc->newmv_prob[i], counts->newmv_mode[i],
                              probwt);
447
  for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
448
    av1_cond_prob_diff_update(w, &cm->fc->zeromv_prob[i],
449
                              counts->zeromv_mode[i], probwt);
450
  for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
451 452
    av1_cond_prob_diff_update(w, &cm->fc->refmv_prob[i], counts->refmv_mode[i],
                              probwt);
453
  for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
454 455
    av1_cond_prob_diff_update(w, &cm->fc->drl_prob[i], counts->drl_mode[i],
                              probwt);
456
}
457
#endif
458

Yaowu Xu's avatar
Yaowu Xu committed
459 460
static int write_skip(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                      int segment_id, const MODE_INFO *mi, aom_writer *w) {
Jingning Han's avatar
Jingning Han committed
461 462 463 464
  if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
    return 1;
  } else {
    const int skip = mi->mbmi.skip;
465 466 467 468 469
#if CONFIG_NEW_MULTISYMBOL
    FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
    const int ctx = av1_get_skip_context(xd);
    aom_write_symbol(w, skip, ec_ctx->skip_cdfs[ctx], 2);
#else
Yaowu Xu's avatar
Yaowu Xu committed
470
    aom_write(w, skip, av1_get_skip_prob(cm, xd));
471
#endif
Jingning Han's avatar
Jingning Han committed
472 473 474 475
    return skip;
  }
}

476 477 478 479 480 481 482 483 484 485 486 487 488
static void write_is_inter(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                           int segment_id, aom_writer *w, const int is_inter) {
  if (!segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
#if CONFIG_NEW_MULTISYMBOL
    FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
    const int ctx = av1_get_intra_inter_context(xd);
    aom_write_symbol(w, is_inter, ec_ctx->intra_inter_cdf[ctx], 2);
#else
    aom_write(w, is_inter, av1_get_intra_inter_prob(cm, xd));
#endif
  }
}

Yue Chen's avatar
Yue Chen committed
489
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
490 491
static void write_motion_mode(const AV1_COMMON *cm, MACROBLOCKD *xd,
                              const MODE_INFO *mi, aom_writer *w) {
492
  const MB_MODE_INFO *mbmi = &mi->mbmi;
493

494 495 496 497 498 499 500
#if !CONFIG_GLOBAL_MOTION
  // The cm parameter is only used with global_motion or with
  // motion_var and warped_motion. In other cases, explicitly ignore
  // it to avoid a compiler warning.
  (void)cm;
#endif

501 502 503
#if CONFIG_NCOBMC_ADAPT_WEIGHT
  MOTION_MODE last_motion_mode_allowed =
      motion_mode_allowed_wrapper(0,
504
#if CONFIG_GLOBAL_MOTION
505
                                  0, cm->global_motion,
506
#endif  // CONFIG_GLOBAL_MOTION
507 508 509
#if CONFIG_WARPED_MOTION
                                  xd,
#endif
510 511
                                  mi);
#else
512
  MOTION_MODE last_motion_mode_allowed = motion_mode_allowed(
513
#if CONFIG_GLOBAL_MOTION
514
      0, cm->global_motion,
515
#endif  // CONFIG_GLOBAL_MOTION
516 517 518
#if CONFIG_WARPED_MOTION
      xd,
#endif
519
      mi);
520
#endif  // CONFIG_NCOBMC_ADAPT_WEIGHT
Yue Chen's avatar
Yue Chen committed
521 522 523
  if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return;
#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
  if (last_motion_mode_allowed == OBMC_CAUSAL) {
524 525 526 527
#if CONFIG_NEW_MULTISYMBOL
    aom_write_symbol(w, mbmi->motion_mode == OBMC_CAUSAL,
                     xd->tile_ctx->obmc_cdf[mbmi->sb_type], 2);
#else
Yue Chen's avatar
Yue Chen committed
528 529
    aom_write(w, mbmi->motion_mode == OBMC_CAUSAL,
              cm->fc->obmc_prob[mbmi->sb_type]);
530
#endif
Yue Chen's avatar
Yue Chen committed
531 532
  } else {
#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
Thomas Davies's avatar
Thomas Davies committed
533 534 535
    aom_write_symbol(w, mbmi->motion_mode,
                     xd->tile_ctx->motion_mode_cdf[mbmi->sb_type],
                     MOTION_MODES);
Yue Chen's avatar
Yue Chen committed
536 537 538 539
#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
  }
#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
}
540 541

#if CONFIG_NCOBMC_ADAPT_WEIGHT
542
static void write_ncobmc_mode(MACROBLOCKD *xd, const MODE_INFO *mi,
543 544 545
                              aom_writer *w) {
  const MB_MODE_INFO *mbmi = &mi->mbmi;
  ADAPT_OVERLAP_BLOCK ao_block = adapt_overlap_block_lookup[mbmi->sb_type];
546
  if (mbmi->motion_mode != NCOBMC_ADAPT_WEIGHT) return;
547

548 549
  aom_write_symbol(w, mbmi->ncobmc_mode[0],
                   xd->tile_ctx->ncobmc_mode_cdf[ao_block], MAX_NCOBMC_MODES);
550
  if (mi_size_wide[mbmi->sb_type] != mi_size_high[mbmi->sb_type]) {
551 552
    aom_write_symbol(w, mbmi->ncobmc_mode[1],
                     xd->tile_ctx->ncobmc_mode_cdf[ao_block], MAX_NCOBMC_MODES);
553 554 555
  }
}
#endif
Yue Chen's avatar
Yue Chen committed
556 557
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION

558
#if CONFIG_DELTA_Q
Thomas Davies's avatar
Thomas Davies committed
559 560
static void write_delta_qindex(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                               int delta_qindex, aom_writer *w) {
561 562
  int sign = delta_qindex < 0;
  int abs = sign ? -delta_qindex : delta_qindex;
Thomas Davies's avatar
Thomas Davies committed
563
  int rem_bits, thr;
564
  int smallval = abs < DELTA_Q_SMALL ? 1 : 0;
Thomas Davies's avatar
Thomas Davies committed
565 566
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
567

Thomas Davies's avatar
Thomas Davies committed
568 569
  aom_write_symbol(w, AOMMIN(abs, DELTA_Q_SMALL), ec_ctx->delta_q_cdf,
                   DELTA_Q_PROBS + 1);
570 571 572 573 574 575

  if (!smallval) {
    rem_bits = OD_ILOG_NZ(abs - 1) - 1;
    thr = (1 << rem_bits) + 1;
    aom_write_literal(w, rem_bits, 3);
    aom_write_literal(w, abs - thr, rem_bits);
576 577 578 579 580
  }
  if (abs > 0) {
    aom_write_bit(w, sign);
  }
}
581

Fangwen Fu's avatar
Fangwen Fu committed
582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605
#if CONFIG_EXT_DELTA_Q
static void write_delta_lflevel(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                                int delta_lflevel, aom_writer *w) {
  int sign = delta_lflevel < 0;
  int abs = sign ? -delta_lflevel : delta_lflevel;
  int rem_bits, thr;
  int smallval = abs < DELTA_LF_SMALL ? 1 : 0;
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;

  aom_write_symbol(w, AOMMIN(abs, DELTA_LF_SMALL), ec_ctx->delta_lf_cdf,
                   DELTA_LF_PROBS + 1);

  if (!smallval) {
    rem_bits = OD_ILOG_NZ(abs - 1) - 1;
    thr = (1 << rem_bits) + 1;
    aom_write_literal(w, rem_bits, 3);
    aom_write_literal(w, abs - thr, rem_bits);
  }
  if (abs > 0) {
    aom_write_bit(w, sign);
  }
}
#endif  // CONFIG_EXT_DELTA_Q
Thomas Davies's avatar
Thomas Davies committed
606
#endif  // CONFIG_DELTA_Q
607

608
#if !CONFIG_NEW_MULTISYMBOL
Yaowu Xu's avatar
Yaowu Xu committed
609
static void update_skip_probs(AV1_COMMON *cm, aom_writer *w,
Jingning Han's avatar
Jingning Han committed
610 611
                              FRAME_COUNTS *counts) {
  int k;
612 613 614 615 616
  const int probwt = cm->num_tg;
  for (k = 0; k < SKIP_CONTEXTS; ++k) {
    av1_cond_prob_diff_update(w, &cm->fc->skip_probs[k], counts->skip[k],
                              probwt);
  }
Jingning Han's avatar
Jingning Han committed
617
}
618
#endif
Jingning Han's avatar
Jingning Han committed
619

Yaowu Xu's avatar
Yaowu Xu committed
620
static void pack_palette_tokens(aom_writer *w, const TOKENEXTRA **tp, int n,
621
                                int num) {
622
  const TOKENEXTRA *p = *tp;
623 624 625 626
  write_uniform(w, n, p->token);  // The first color index.
  ++p;
  --num;
  for (int i = 0; i < num; ++i) {
627
    aom_write_symbol(w, p->token, p->color_map_cdf, n);
hui su's avatar
hui su committed
628 629 630 631
    ++p;
  }
  *tp = p;
}
632

633
#if !CONFIG_PVQ
634
#if CONFIG_SUPERTX
635
static void update_supertx_probs(AV1_COMMON *cm, int probwt, aom_writer *w) {
Yaowu Xu's avatar
Yaowu Xu committed
636 637
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
638 639 640 641
  int i, j;
  int savings = 0;
  int do_update = 0;
  for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
Jingning Han's avatar
Jingning Han committed
642
    for (j = TX_8X8; j < TX_SIZES; ++j) {
643 644
      savings += av1_cond_prob_diff_update_savings(
          &cm->fc->supertx_prob[i][j], cm->counts.supertx[i][j], probwt);
645 646 647
    }
  }
  do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
648
  aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
649 650
  if (do_update) {
    for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
Jingning Han's avatar
Jingning Han committed
651
      for (j = TX_8X8; j < TX_SIZES; ++j) {
Yaowu Xu's avatar
Yaowu Xu committed
652
        av1_cond_prob_diff_update(w, &cm->fc->supertx_prob[i][j],
653
                                  cm->counts.supertx[i][j], probwt);
654 655 656 657 658 659
      }
    }
  }
}
#endif  // CONFIG_SUPERTX

660
#if !CONFIG_LV_MAP
661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
#if CONFIG_NEW_MULTISYMBOL
static INLINE void write_coeff_extra(const aom_cdf_prob *const *cdf, int val,
                                     int n, aom_writer *w) {
  // Code the extra bits from LSB to MSB in groups of 4
  int i = 0;
  int count = 0;
  while (count < n) {
    const int size = AOMMIN(n - count, 4);
    const int mask = (1 << size) - 1;
    aom_write_cdf(w, val & mask, cdf[i++], 1 << size);
    val >>= size;
    count += size;
  }
}
#else
static INLINE void write_coeff_extra(const aom_prob *pb, int value,
                                     int num_bits, int skip_bits, aom_writer *w,
                                     TOKEN_STATS *token_stats) {
  // Code the extra bits from MSB to LSB 1 bit at a time
  int index;
  for (index = skip_bits; index < num_bits; ++index) {
    const int shift = num_bits - index - 1;
    const int bb = (value >> shift) & 1;
    aom_write_record(w, bb, pb[index], token_stats);
  }
}
687
#endif  // CONFIG_NEW_MULTISYMBOL
688

Yaowu Xu's avatar
Yaowu Xu committed
689
static void pack_mb_tokens(aom_writer *w, const TOKENEXTRA **tp,
690
                           const TOKENEXTRA *const stop,
691 692
                           aom_bit_depth_t bit_depth, const TX_SIZE tx_size,
                           TOKEN_STATS *token_stats) {
693
  const TOKENEXTRA *p = *tp;
Fangwen Fu's avatar
Fangwen Fu committed
694
#if CONFIG_VAR_TX
695
  int count = 0;
696
  const int seg_eob = tx_size_2d[tx_size];
697
#endif
Jingning Han's avatar
Jingning Han committed
698 699

  while (p < stop && p->token != EOSB_TOKEN) {
700
    const int token = p->token;
701
    const int eob_val = p->eob_val;
702
    if (token == BLOCK_Z_TOKEN) {
703
      aom_write_symbol(w, 0, *p->head_cdf, HEAD_TOKENS + 1);
704
      p++;
705 706 707
#if CONFIG_VAR_TX
      break;
#endif
708 709
      continue;
    }
Yaowu Xu's avatar
Yaowu Xu committed
710 711

    const av1_extra_bit *const extra_bits = &av1_extra_bits[token];
712
    if (eob_val == LAST_EOB) {
713 714 715
      // Just code a flag indicating whether the value is >1 or 1.
      aom_write_bit(w, token != ONE_TOKEN);
    } else {
716
      int comb_symb = 2 * AOMMIN(token, TWO_TOKEN) - eob_val + p->first_val;
717
      aom_write_symbol(w, comb_symb, *p->head_cdf, HEAD_TOKENS + p->first_val);
718
    }
719
    if (token > ONE_TOKEN) {
720
      aom_write_symbol(w, token - TWO_TOKEN, *p->tail_cdf, TAIL_TOKENS);
Alex Converse's avatar
Alex Converse committed
721
    }
722 723 724 725

    if (extra_bits->base_val) {
      const int bit_string = p->extra;
      const int bit_string_length = extra_bits->len;  // Length of extra bits to
726
      const int is_cat6 = (extra_bits->base_val == CAT6_MIN_VAL);
727 728
      // be written excluding
      // the sign bit.
729
      int skip_bits = is_cat6
730 731 732
                          ? (int)sizeof(av1_cat6_prob) -
                                av1_get_cat6_extrabits_size(tx_size, bit_depth)
                          : 0;
733

734 735 736 737 738 739 740 741 742
      assert(!(bit_string >> (bit_string_length - skip_bits + 1)));
      if (bit_string_length > 0)
#if CONFIG_NEW_MULTISYMBOL
        write_coeff_extra(extra_bits->cdf, bit_string >> 1,
                          bit_string_length - skip_bits, w);
#else
        write_coeff_extra(extra_bits->prob, bit_string >> 1, bit_string_length,
                          skip_bits, w, token_stats);
#endif
743 744 745 746 747

      aom_write_bit_record(w, bit_string & 1, token_stats);
    }
    ++p;

Fangwen Fu's avatar
Fangwen Fu committed
748
#if CONFIG_VAR_TX
749
    ++count;
750
    if (eob_val == EARLY_EOB || count == seg_eob) break;
751 752 753 754 755
#endif
  }

  *tp = p;
}
Angie Chiang's avatar
Angie Chiang committed
756
#endif  // !CONFIG_LV_MAP
757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779
#else   // !CONFIG_PVQ
static PVQ_INFO *get_pvq_block(PVQ_QUEUE *pvq_q) {
  PVQ_INFO *pvq;

  assert(pvq_q->curr_pos <= pvq_q->last_pos);
  assert(pvq_q->curr_pos < pvq_q->buf_len);

  pvq = pvq_q->buf + pvq_q->curr_pos;
  ++pvq_q->curr_pos;

  return pvq;
}

static void pack_pvq_tokens(aom_writer *w, MACROBLOCK *const x,
                            MACROBLOCKD *const xd, int plane, BLOCK_SIZE bsize,
                            const TX_SIZE tx_size) {
  PVQ_INFO *pvq;
  int idx, idy;
  const struct macroblockd_plane *const pd = &xd->plane[plane];
  od_adapt_ctx *adapt;
  int max_blocks_wide;
  int max_blocks_high;
  int step = (1 << tx_size);
780 781

#if CONFIG_CHROMA_SUB8X8
782
  const BLOCK_SIZE plane_bsize =
783 784 785 786 787 788 789
      AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd));
#elif CONFIG_CB4X4
  const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
#else
  const BLOCK_SIZE plane_bsize =
      get_plane_block_size(AOMMAX(BLOCK_8X8, bsize), pd);
#endif
790

791
  adapt = x->daala_enc.state.adapt;
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809

  max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
  max_blocks_high = max_block_high(xd, plane_bsize, plane);

  for (idy = 0; idy < max_blocks_high; idy += step) {
    for (idx = 0; idx < max_blocks_wide; idx += step) {
      const int is_keyframe = 0;
      const int encode_flip = 0;
      const int flip = 0;
      int i;
      const int has_dc_skip = 1;
      int *exg = &adapt->pvq.pvq_exg[plane][tx_size][0];
      int *ext = adapt->pvq.pvq_ext + tx_size * PVQ_MAX_PARTITIONS;
      generic_encoder *model = adapt->pvq.pvq_param_model;

      pvq = get_pvq_block(x->pvq_q);

      // encode block skip info
810 811
      aom_write_symbol(w, pvq->ac_dc_coded,
                       adapt->skip_cdf[2 * tx_size + (plane != 0)], 4);
812 813 814 815 816 817 818 819

      // AC coeffs coded?
      if (pvq->ac_dc_coded & AC_CODED) {
        assert(pvq->bs == tx_size);
        for (i = 0; i < pvq->nb_bands; i++) {
          if (i == 0 ||
              (!pvq->skip_rest && !(pvq->skip_dir & (1 << ((i - 1) % 3))))) {
            pvq_encode_partition(
820 821
                w, pvq->qg[i], pvq->theta[i], pvq->y + pvq->off[i],
                pvq->size[i], pvq->k[i], model, adapt, exg + i, ext + i,
822 823 824 825 826 827
                (plane != 0) * OD_TXSIZES * PVQ_MAX_PARTITIONS +
                    pvq->bs * PVQ_MAX_PARTITIONS + i,
                is_keyframe, i == 0 && (i < pvq->nb_bands - 1), pvq->skip_rest,
                encode_flip, flip);
          }
          if (i == 0 && !pvq->skip_rest && pvq->bs > 0) {
828
            aom_write_symbol(
829 830 831
                w, pvq->skip_dir,
                &adapt->pvq
                     .pvq_skip_dir_cdf[(plane != 0) + 2 * (pvq->bs - 1)][0],
832
                7);
833 834 835 836 837 838
          }
        }
      }
      // Encode residue of DC coeff, if exist.
      if (!has_dc_skip || (pvq->ac_dc_coded & DC_CODED)) {
        generic_encode(w, &adapt->model_dc[plane],
839
                       abs(pvq->dq_dc_residue) - has_dc_skip,
840 841 842 843 844 845 846 847
                       &adapt->ex_dc[plane][pvq->bs][0], 2);
      }
      if ((pvq->ac_dc_coded & DC_CODED)) {
        aom_write_bit(w, pvq->dq_dc_residue < 0);
      }
    }
  }  // for (idy = 0;
}
848
#endif  // !CONFIG_PVG
849

850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887
#if CONFIG_VAR_TX && !CONFIG_COEF_INTERLEAVE
#if CONFIG_LV_MAP
static void pack_txb_tokens(aom_writer *w,
#if CONFIG_LV_MAP
                            AV1_COMMON *cm,
#endif  // CONFIG_LV_MAP
                            const TOKENEXTRA **tp,
                            const TOKENEXTRA *const tok_end,
#if CONFIG_PVQ || CONFIG_LV_MAP
                            MACROBLOCK *const x,
#endif
                            MACROBLOCKD *xd, MB_MODE_INFO *mbmi, int plane,
                            BLOCK_SIZE plane_bsize, aom_bit_depth_t bit_depth,
                            int block, int blk_row, int blk_col,
                            TX_SIZE tx_size, TOKEN_STATS *token_stats) {
  const struct macroblockd_plane *const pd = &xd->plane[plane];
  const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
  const int tx_row = blk_row >> (1 - pd->subsampling_y);
  const int tx_col = blk_col >> (1 - pd->subsampling_x);
  TX_SIZE plane_tx_size;
  const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
  const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);

  if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;

  plane_tx_size =
      plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0]
            : mbmi->inter_tx_size[tx_row][tx_col];

  if (tx_size == plane_tx_size) {
    TOKEN_STATS tmp_token_stats;
    init_token_stats(&tmp_token_stats);

#if !CONFIG_PVQ
    tran_low_t *tcoeff = BLOCK_OFFSET(x->mbmi_ext->tcoeff[plane], block);
    uint16_t eob = x->mbmi_ext->eobs[plane][block];
    TXB_CTX txb_ctx = { x