bitstream.c 186 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
#include "av1/common/clpf.h"
30
#endif  // CONFIG_CDEF
31 32 33 34
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
#include "av1/common/entropymv.h"
#include "av1/common/mvref_common.h"
35
#include "av1/common/odintrin.h"
36 37
#include "av1/common/pred_common.h"
#include "av1/common/reconinter.h"
hui su's avatar
hui su committed
38 39 40
#if CONFIG_EXT_INTRA
#include "av1/common/reconintra.h"
#endif  // CONFIG_EXT_INTRA
41 42
#include "av1/common/seg_common.h"
#include "av1/common/tile_common.h"
Jingning Han's avatar
Jingning Han committed
43

Alex Converse's avatar
Alex Converse committed
44
#if CONFIG_ANS
Alex Converse's avatar
Alex Converse committed
45
#include "aom_dsp/buf_ans.h"
Alex Converse's avatar
Alex Converse committed
46
#endif  // CONFIG_ANS
Angie Chiang's avatar
Angie Chiang committed
47 48 49
#if CONFIG_LV_MAP
#include "av1/encoder/encodetxb.h"
#endif  // CONFIG_LV_MAP
50 51 52 53
#include "av1/encoder/bitstream.h"
#include "av1/encoder/cost.h"
#include "av1/encoder/encodemv.h"
#include "av1/encoder/mcomp.h"
hui su's avatar
hui su committed
54 55 56
#if CONFIG_PALETTE && CONFIG_PALETTE_DELTA_ENCODING
#include "av1/encoder/palette.h"
#endif  // CONFIG_PALETTE && CONFIG_PALETTE_DELTA_ENCODING
57 58 59
#include "av1/encoder/segmentation.h"
#include "av1/encoder/subexp.h"
#include "av1/encoder/tokenize.h"
60 61 62
#if CONFIG_PVQ
#include "av1/encoder/pvq_encoder.h"
#endif
Jingning Han's avatar
Jingning Han committed
63

64 65
#define COMPOUND_SINGLEREF_DEBUG 0

66 67 68
static struct av1_token intra_mode_encodings[INTRA_MODES];
static struct av1_token switchable_interp_encodings[SWITCHABLE_FILTERS];
static struct av1_token partition_encodings[PARTITION_TYPES];
69
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
70
static const struct av1_token
71
    inter_compound_mode_encodings[INTER_COMPOUND_MODES] = {
72 73
      { 2, 2 },  { 12, 4 }, { 52, 6 }, { 53, 6 },
      { 54, 6 }, { 55, 6 }, { 0, 1 },  { 7, 3 }
74
    };
75 76 77 78
#if CONFIG_COMPOUND_SINGLEREF
static struct av1_token
    inter_singleref_comp_mode_encodings[INTER_SINGLEREF_COMP_MODES];
#endif  // CONFIG_COMPOUND_SINGLEREF
79
#endif  // CONFIG_EXT_INTER
80
#if CONFIG_PALETTE
81 82 83
static struct av1_token palette_size_encodings[PALETTE_SIZES];
static struct av1_token palette_color_index_encodings[PALETTE_SIZES]
                                                     [PALETTE_COLORS];
84
#endif  // CONFIG_PALETTE
85

86
#if CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE
Yaowu Xu's avatar
Yaowu Xu committed
87
static INLINE void write_uniform(aom_writer *w, int n, int v) {
88 89
  const int l = get_unsigned_bits(n);
  const int m = (1 << l) - n;
90
  if (l == 0) return;
hui su's avatar
hui su committed
91
  if (v < m) {
Yaowu Xu's avatar
Yaowu Xu committed
92
    aom_write_literal(w, v, l - 1);
hui su's avatar
hui su committed
93
  } else {
Yaowu Xu's avatar
Yaowu Xu committed
94 95
    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
96 97
  }
}
98
#endif  // CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE
Jingning Han's avatar
Jingning Han committed
99

100
#if CONFIG_EXT_TX
Yaowu Xu's avatar
Yaowu Xu committed
101 102
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];
103
#else
Yaowu Xu's avatar
Yaowu Xu committed
104
static struct av1_token ext_tx_encodings[TX_TYPES];
105
#endif  // CONFIG_EXT_TX
106
#if CONFIG_EXT_INTRA
hui su's avatar
hui su committed
107
#if CONFIG_INTRA_INTERP
Yaowu Xu's avatar
Yaowu Xu committed
108
static struct av1_token intra_filter_encodings[INTRA_FILTERS];
hui su's avatar
hui su committed
109
#endif  // CONFIG_INTRA_INTERP
110
#endif  // CONFIG_EXT_INTRA
111
#if CONFIG_EXT_INTER
112
#if CONFIG_INTERINTRA
Yaowu Xu's avatar
Yaowu Xu committed
113
static struct av1_token interintra_mode_encodings[INTERINTRA_MODES];
114
#endif
115
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
116
static struct av1_token compound_type_encodings[COMPOUND_TYPES];
117
#endif  // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
118
#endif  // CONFIG_EXT_INTER
Yue Chen's avatar
Yue Chen committed
119 120 121
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
static struct av1_token motion_mode_encodings[MOTION_MODES];
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
122 123 124
#if CONFIG_LOOP_RESTORATION
static struct av1_token switchable_restore_encodings[RESTORE_SWITCHABLE_TYPES];
#endif  // CONFIG_LOOP_RESTORATION
125 126 127
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);
128 129 130 131 132
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);
133

Yaowu Xu's avatar
Yaowu Xu committed
134
void av1_encode_token_init(void) {
135
#if CONFIG_EXT_TX || CONFIG_PALETTE
136
  int s;
137 138
#endif  // CONFIG_EXT_TX || CONFIG_PALETTE
#if CONFIG_EXT_TX
139
  for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
Yaowu Xu's avatar
Yaowu Xu committed
140
    av1_tokens_from_tree(ext_tx_inter_encodings[s], av1_ext_tx_inter_tree[s]);
141 142
  }
  for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
Yaowu Xu's avatar
Yaowu Xu committed
143
    av1_tokens_from_tree(ext_tx_intra_encodings[s], av1_ext_tx_intra_tree[s]);
144
  }
145
#else
Yaowu Xu's avatar
Yaowu Xu committed
146
  av1_tokens_from_tree(ext_tx_encodings, av1_ext_tx_tree);
147
#endif  // CONFIG_EXT_TX
148 149 150 151
  av1_tokens_from_tree(intra_mode_encodings, av1_intra_mode_tree);
  av1_tokens_from_tree(switchable_interp_encodings, av1_switchable_interp_tree);
  av1_tokens_from_tree(partition_encodings, av1_partition_tree);

152 153
#if CONFIG_PALETTE
  av1_tokens_from_tree(palette_size_encodings, av1_palette_size_tree);
154
  for (s = 0; s < PALETTE_SIZES; ++s) {
155 156
    av1_tokens_from_tree(palette_color_index_encodings[s],
                         av1_palette_color_index_tree[s]);
157 158 159
  }
#endif  // CONFIG_PALETTE

160
#if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
Yaowu Xu's avatar
Yaowu Xu committed
161
  av1_tokens_from_tree(intra_filter_encodings, av1_intra_filter_tree);
162
#endif  // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
163
#if CONFIG_EXT_INTER
164
#if CONFIG_INTERINTRA
Yaowu Xu's avatar
Yaowu Xu committed
165
  av1_tokens_from_tree(interintra_mode_encodings, av1_interintra_mode_tree);
166
#endif  // CONFIG_INTERINTRA
167 168 169 170
#if CONFIG_COMPOUND_SINGLEREF
  av1_tokens_from_tree(inter_singleref_comp_mode_encodings,
                       av1_inter_singleref_comp_mode_tree);
#endif  // CONFIG_COMPOUND_SINGLEREF
171
#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
172
  av1_tokens_from_tree(compound_type_encodings, av1_compound_type_tree);
173
#endif  // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
174
#endif  // CONFIG_EXT_INTER
Yue Chen's avatar
Yue Chen committed
175 176 177
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
  av1_tokens_from_tree(motion_mode_encodings, av1_motion_mode_tree);
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
178 179 180 181
#if CONFIG_LOOP_RESTORATION
  av1_tokens_from_tree(switchable_restore_encodings,
                       av1_switchable_restore_tree);
#endif  // CONFIG_LOOP_RESTORATION
182

183
  /* This hack is necessary when CONFIG_DUAL_FILTER is enabled because the five
184 185 186
      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
187
                        av1_switchable_interp_tree);
188 189 190
/* 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. */
191 192 193
#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
194
                          av1_ext_tx_intra_tree[s]);
195 196
  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
197
                          av1_ext_tx_inter_tree[s]);
198
#else
Jingning Han's avatar
Jingning Han committed
199
  av1_indices_from_tree(av1_ext_tx_ind, av1_ext_tx_inv, av1_ext_tx_tree);
David Barker's avatar
David Barker committed
200
#endif
Jingning Han's avatar
Jingning Han committed
201
  av1_indices_from_tree(av1_intra_mode_ind, av1_intra_mode_inv,
202
                        av1_intra_mode_tree);
203 204
}

Jingning Han's avatar
Jingning Han committed
205 206 207 208
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
209 210 211
#if CONFIG_INTRABC
  assert(!is_intrabc_block(&mi->mbmi));
#endif  // CONFIG_INTRABC
Jingning Han's avatar
Jingning Han committed
212 213 214 215 216
  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
217

218
#if CONFIG_EXT_INTER && CONFIG_INTERINTRA
Yaowu Xu's avatar
Yaowu Xu committed
219 220 221 222
static void write_interintra_mode(aom_writer *w, INTERINTRA_MODE mode,
                                  const aom_prob *probs) {
  av1_write_token(w, av1_interintra_mode_tree, probs,
                  &interintra_mode_encodings[mode]);
223
}
224
#endif  // CONFIG_EXT_INTER && CONFIG_INTERINTRA
225

226
static void write_inter_mode(aom_writer *w, PREDICTION_MODE mode,
227
                             FRAME_CONTEXT *ec_ctx, const int16_t mode_ctx) {
228
  const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK;
229
  const aom_prob newmv_prob = ec_ctx->newmv_prob[newmv_ctx];
Yue Chen's avatar
Yue Chen committed
230

Jingning Han's avatar
Jingning Han committed
231
  aom_write(w, mode != NEWMV, newmv_prob);
232

Jingning Han's avatar
Jingning Han committed
233
  if (mode != NEWMV) {
234
    const int16_t zeromv_ctx = (mode_ctx >> ZEROMV_OFFSET) & ZEROMV_CTX_MASK;
235
    const aom_prob zeromv_prob = ec_ctx->zeromv_prob[zeromv_ctx];
236 237 238 239 240 241

    if (mode_ctx & (1 << ALL_ZERO_FLAG_OFFSET)) {
      assert(mode == ZEROMV);
      return;
    }

Yaowu Xu's avatar
Yaowu Xu committed
242
    aom_write(w, mode != ZEROMV, zeromv_prob);
243 244

    if (mode != ZEROMV) {
245
      int16_t refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
Yaowu Xu's avatar
Yaowu Xu committed
246
      aom_prob refmv_prob;
247

248 249 250
      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;
251

252
      refmv_prob = ec_ctx->refmv_prob[refmv_ctx];
Yaowu Xu's avatar
Yaowu Xu committed
253
      aom_write(w, mode != NEARESTMV, refmv_prob);
254 255
    }
  }
Jingning Han's avatar
Jingning Han committed
256 257
}

Yaowu Xu's avatar
Yaowu Xu committed
258 259 260
static void write_drl_idx(const AV1_COMMON *cm, const MB_MODE_INFO *mbmi,
                          const MB_MODE_INFO_EXT *mbmi_ext, aom_writer *w) {
  uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
261 262 263

  assert(mbmi->ref_mv_idx < 3);

264
#if CONFIG_EXT_INTER
265 266 267 268
#if CONFIG_COMPOUND_SINGLEREF
  if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV ||
      mbmi->mode == SR_NEW_NEWMV) {
#else   // !CONFIG_COMPOUND_SINGLEREF
269
  if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) {
270 271
#endif  // CONFIG_COMPOUND_SINGLEREF
#else   // !CONFIG_EXT_INTER
272
  if (mbmi->mode == NEWMV) {
273
#endif  // CONFIG_EXT_INTER
274 275 276 277
    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
278 279
            av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
        aom_prob drl_prob = cm->fc->drl_prob[drl_ctx];
280

Yaowu Xu's avatar
Yaowu Xu committed
281
        aom_write(w, mbmi->ref_mv_idx != idx, drl_prob);
282
        if (mbmi->ref_mv_idx == idx) return;
283
      }
284 285 286 287
    }
    return;
  }

David Barker's avatar
David Barker committed
288
  if (have_nearmv_in_inter_mode(mbmi->mode)) {
289 290 291 292 293
    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
294 295
            av1_drl_ctx(mbmi_ext->ref_mv_stack[ref_frame_type], idx);
        aom_prob drl_prob = cm->fc->drl_prob[drl_ctx];
296

Yaowu Xu's avatar
Yaowu Xu committed
297
        aom_write(w, mbmi->ref_mv_idx != (idx - 1), drl_prob);
298
        if (mbmi->ref_mv_idx == (idx - 1)) return;
299
      }
300
    }
301
    return;
302 303 304
  }
}

305
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
306
static void write_inter_compound_mode(AV1_COMMON *cm, aom_writer *w,
307 308
                                      PREDICTION_MODE mode,
                                      const int16_t mode_ctx) {
Yaowu Xu's avatar
Yaowu Xu committed
309
  const aom_prob *const inter_compound_probs =
310
      cm->fc->inter_compound_mode_probs[mode_ctx];
311 312

  assert(is_inter_compound_mode(mode));
Yaowu Xu's avatar
Yaowu Xu committed
313 314
  av1_write_token(w, av1_inter_compound_mode_tree, inter_compound_probs,
                  &inter_compound_mode_encodings[INTER_COMPOUND_OFFSET(mode)]);
315
}
316 317 318 319 320 321 322 323 324 325 326 327 328 329

#if CONFIG_COMPOUND_SINGLEREF
static void write_inter_singleref_comp_mode(AV1_COMMON *cm, aom_writer *w,
                                            PREDICTION_MODE mode,
                                            const int16_t mode_ctx) {
  assert(is_inter_singleref_comp_mode(mode));
  const aom_prob *const inter_singleref_comp_probs =
      cm->fc->inter_singleref_comp_mode_probs[mode_ctx];

  av1_write_token(
      w, av1_inter_singleref_comp_mode_tree, inter_singleref_comp_probs,
      &inter_singleref_comp_mode_encodings[INTER_SINGLEREF_COMP_OFFSET(mode)]);
}
#endif  // CONFIG_COMPOUND_SINGLEREF
330 331
#endif  // CONFIG_EXT_INTER

Yaowu Xu's avatar
Yaowu Xu committed
332
static void encode_unsigned_max(struct aom_write_bit_buffer *wb, int data,
333
                                int max) {
Yaowu Xu's avatar
Yaowu Xu committed
334
  aom_wb_write_literal(wb, data, get_unsigned_bits(max));
Jingning Han's avatar
Jingning Han committed
335 336
}

337 338
#if !CONFIG_EC_ADAPT || \
    (CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION || CONFIG_EXT_INTER)
Yaowu Xu's avatar
Yaowu Xu committed
339 340
static void prob_diff_update(const aom_tree_index *tree,
                             aom_prob probs[/*n - 1*/],
341
                             const unsigned int counts[/*n - 1*/], int n,
342
                             int probwt, aom_writer *w) {
Jingning Han's avatar
Jingning Han committed
343 344 345 346 347 348
  int i;
  unsigned int branch_ct[32][2];

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

Yaowu Xu's avatar
Yaowu Xu committed
349
  av1_tree_probs_from_distribution(tree, branch_ct, counts);
Jingning Han's avatar
Jingning Han committed
350
  for (i = 0; i < n - 1; ++i)
351
    av1_cond_prob_diff_update(w, &probs[i], branch_ct[i], probwt);
Jingning Han's avatar
Jingning Han committed
352
}
353 354
#endif

355
#if CONFIG_EXT_INTER || !CONFIG_EC_ADAPT
Yaowu Xu's avatar
Yaowu Xu committed
356 357
static int prob_diff_update_savings(const aom_tree_index *tree,
                                    aom_prob probs[/*n - 1*/],
358 359
                                    const unsigned int counts[/*n - 1*/], int n,
                                    int probwt) {
360 361 362 363 364 365
  int i;
  unsigned int branch_ct[32][2];
  int savings = 0;

  // Assuming max number of probabilities <= 32
  assert(n <= 32);
Yaowu Xu's avatar
Yaowu Xu committed
366
  av1_tree_probs_from_distribution(tree, branch_ct, counts);
367
  for (i = 0; i < n - 1; ++i) {
368 369
    savings +=
        av1_cond_prob_diff_update_savings(&probs[i], branch_ct[i], probwt);
370 371 372
  }
  return savings;
}
373
#endif  // CONFIG_EXT_INTER || !CONFIG_EC_ADAPT
374

375
#if CONFIG_VAR_TX
Yaowu Xu's avatar
Yaowu Xu committed
376
static void write_tx_size_vartx(const AV1_COMMON *cm, const MACROBLOCKD *xd,
377
                                const MB_MODE_INFO *mbmi, TX_SIZE tx_size,
378 379
                                int depth, int blk_row, int blk_col,
                                aom_writer *w) {
380 381
  const int tx_row = blk_row >> 1;
  const int tx_col = blk_col >> 1;
382 383 384
  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);

385 386
  int ctx = txfm_partition_context(xd->above_txfm_context + blk_col,
                                   xd->left_txfm_context + blk_row,
387
                                   mbmi->sb_type, tx_size);
388

389
  if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
390

Jingning Han's avatar
Jingning Han committed
391
  if (depth == MAX_VARTX_DEPTH) {
392 393
    txfm_partition_update(xd->above_txfm_context + blk_col,
                          xd->left_txfm_context + blk_row, tx_size, tx_size);
394 395 396
    return;
  }

397
  if (tx_size == mbmi->inter_tx_size[tx_row][tx_col]) {
Yaowu Xu's avatar
Yaowu Xu committed
398
    aom_write(w, 0, cm->fc->txfm_partition_prob[ctx]);
399 400
    txfm_partition_update(xd->above_txfm_context + blk_col,
                          xd->left_txfm_context + blk_row, tx_size, tx_size);
401
  } else {
402 403
    const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
    const int bsl = tx_size_wide_unit[sub_txs];
404
    int i;
405

Yaowu Xu's avatar
Yaowu Xu committed
406
    aom_write(w, 1, cm->fc->txfm_partition_prob[ctx]);
407

408
    if (tx_size == TX_8X8) {
409 410
      txfm_partition_update(xd->above_txfm_context + blk_col,
                            xd->left_txfm_context + blk_row, sub_txs, tx_size);
411
      return;
412
    }
413 414 415

    assert(bsl > 0);
    for (i = 0; i < 4; ++i) {
416 417 418 419
      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);
420 421 422
    }
  }
}
423

Yaowu Xu's avatar
Yaowu Xu committed
424
static void update_txfm_partition_probs(AV1_COMMON *cm, aom_writer *w,
425
                                        FRAME_COUNTS *counts, int probwt) {
426 427
  int k;
  for (k = 0; k < TXFM_PARTITION_CONTEXTS; ++k)
Yaowu Xu's avatar
Yaowu Xu committed
428
    av1_cond_prob_diff_update(w, &cm->fc->txfm_partition_prob[k],
429
                              counts->txfm_partition[k], probwt);
430
}
431 432
#endif

Yaowu Xu's avatar
Yaowu Xu committed
433 434
static void write_selected_tx_size(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                                   aom_writer *w) {
435 436
  const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
  const BLOCK_SIZE bsize = mbmi->sb_type;
437 438 439 440 441 442
#if CONFIG_EC_ADAPT
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
#else
  FRAME_CONTEXT *ec_ctx = cm->fc;
#endif
443
// For sub8x8 blocks the tx_size symbol does not need to be sent
444
#if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX
445 446
  if (bsize > BLOCK_4X4) {
#else
447
  if (bsize >= BLOCK_8X8) {
448
#endif
449 450 451 452 453 454
    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];
455
    const int depth = tx_size_to_depth(coded_tx_size);
456
#if CONFIG_EXT_TX && CONFIG_RECT_TX
457
    assert(IMPLIES(is_rect_tx(tx_size), is_rect_tx_allowed(xd, mbmi)));
458 459
#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX

460
    aom_write_symbol(w, depth, ec_ctx->tx_size_cdf[tx_size_cat][tx_size_ctx],
461
                     tx_size_cat + 2);
462 463 464 465 466
#if CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
    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);
#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
Jingning Han's avatar
Jingning Han committed
467 468 469
  }
}

Yaowu Xu's avatar
Yaowu Xu committed
470
static void update_inter_mode_probs(AV1_COMMON *cm, aom_writer *w,
471 472
                                    FRAME_COUNTS *counts) {
  int i;
473 474 475 476 477
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
478
  for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
479 480
    av1_cond_prob_diff_update(w, &cm->fc->newmv_prob[i], counts->newmv_mode[i],
                              probwt);
481
  for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
482
    av1_cond_prob_diff_update(w, &cm->fc->zeromv_prob[i],
483
                              counts->zeromv_mode[i], probwt);
484
  for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
485 486
    av1_cond_prob_diff_update(w, &cm->fc->refmv_prob[i], counts->refmv_mode[i],
                              probwt);
487
  for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
488 489
    av1_cond_prob_diff_update(w, &cm->fc->drl_prob[i], counts->drl_mode[i],
                              probwt);
490 491
}

492
#if CONFIG_EXT_INTER
493 494
static void update_inter_compound_mode_probs(AV1_COMMON *cm, int probwt,
                                             aom_writer *w) {
Yaowu Xu's avatar
Yaowu Xu committed
495 496
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
497 498 499 500
  int i;
  int savings = 0;
  int do_update = 0;
  for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
501
    savings += prob_diff_update_savings(
Yaowu Xu's avatar
Yaowu Xu committed
502
        av1_inter_compound_mode_tree, cm->fc->inter_compound_mode_probs[i],
503
        cm->counts.inter_compound_mode[i], INTER_COMPOUND_MODES, probwt);
504 505
  }
  do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
506
  aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
507 508
  if (do_update) {
    for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
509
      prob_diff_update(
Yaowu Xu's avatar
Yaowu Xu committed
510
          av1_inter_compound_mode_tree, cm->fc->inter_compound_mode_probs[i],
511
          cm->counts.inter_compound_mode[i], INTER_COMPOUND_MODES, probwt, w);
512 513 514
    }
  }
}
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542

#if CONFIG_COMPOUND_SINGLEREF
static void update_inter_singleref_comp_mode_probs(AV1_COMMON *cm, int probwt,
                                                   aom_writer *w) {
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
  int i;
  int savings = 0;
  int do_update = 0;
  for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
    savings +=
        prob_diff_update_savings(av1_inter_singleref_comp_mode_tree,
                                 cm->fc->inter_singleref_comp_mode_probs[i],
                                 cm->counts.inter_singleref_comp_mode[i],
                                 INTER_SINGLEREF_COMP_MODES, probwt);
  }
  do_update = savings > savings_thresh;
  aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
  if (do_update) {
    for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
      prob_diff_update(av1_inter_singleref_comp_mode_tree,
                       cm->fc->inter_singleref_comp_mode_probs[i],
                       cm->counts.inter_singleref_comp_mode[i],
                       INTER_SINGLEREF_COMP_MODES, probwt, w);
    }
  }
}
#endif  // CONFIG_COMPOUND_SINGLEREF
543 544
#endif  // CONFIG_EXT_INTER

Yaowu Xu's avatar
Yaowu Xu committed
545 546
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
547 548 549 550
  if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
    return 1;
  } else {
    const int skip = mi->mbmi.skip;
Yaowu Xu's avatar
Yaowu Xu committed
551
    aom_write(w, skip, av1_get_skip_prob(cm, xd));
Jingning Han's avatar
Jingning Han committed
552 553 554 555
    return skip;
  }
}

Yue Chen's avatar
Yue Chen committed
556
#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
557
static void write_motion_mode(const AV1_COMMON *cm, const MODE_INFO *mi,
Yue Chen's avatar
Yue Chen committed
558
                              aom_writer *w) {
559 560 561 562 563 564
  const MB_MODE_INFO *mbmi = &mi->mbmi;
  MOTION_MODE last_motion_mode_allowed = motion_mode_allowed(
#if CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION
      0, cm->global_motion,
#endif  // CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION
      mi);
Yue Chen's avatar
Yue Chen committed
565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581

  if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return;
#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
  if (last_motion_mode_allowed == OBMC_CAUSAL) {
    aom_write(w, mbmi->motion_mode == OBMC_CAUSAL,
              cm->fc->obmc_prob[mbmi->sb_type]);
  } else {
#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
    av1_write_token(w, av1_motion_mode_tree,
                    cm->fc->motion_mode_prob[mbmi->sb_type],
                    &motion_mode_encodings[mbmi->motion_mode]);
#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
  }
#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
}
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION

582
#if CONFIG_DELTA_Q
Thomas Davies's avatar
Thomas Davies committed
583 584
static void write_delta_qindex(const AV1_COMMON *cm, const MACROBLOCKD *xd,
                               int delta_qindex, aom_writer *w) {
585 586
  int sign = delta_qindex < 0;
  int abs = sign ? -delta_qindex : delta_qindex;
Thomas Davies's avatar
Thomas Davies committed
587
  int rem_bits, thr;
588
  int smallval = abs < DELTA_Q_SMALL ? 1 : 0;
Thomas Davies's avatar
Thomas Davies committed
589 590 591 592 593 594 595
#if CONFIG_EC_ADAPT
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
#else
  FRAME_CONTEXT *ec_ctx = cm->fc;
  (void)xd;
#endif
596

Thomas Davies's avatar
Thomas Davies committed
597 598
  aom_write_symbol(w, AOMMIN(abs, DELTA_Q_SMALL), ec_ctx->delta_q_cdf,
                   DELTA_Q_PROBS + 1);
599 600 601 602 603 604

  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);
605 606 607 608 609
  }
  if (abs > 0) {
    aom_write_bit(w, sign);
  }
}
610

Thomas Davies's avatar
Thomas Davies committed
611
#if !CONFIG_EC_ADAPT
612 613 614
static void update_delta_q_probs(AV1_COMMON *cm, aom_writer *w,
                                 FRAME_COUNTS *counts) {
  int k;
615 616 617 618 619
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
Fangwen Fu's avatar
Fangwen Fu committed
620 621 622
#if CONFIG_EXT_DELTA_Q
  if (!cm->delta_q_present_flag) return;
#endif  // CONFIG_EXT_DELTA_Q
623
  for (k = 0; k < DELTA_Q_PROBS; ++k) {
624 625
    av1_cond_prob_diff_update(w, &cm->fc->delta_q_prob[k], counts->delta_q[k],
                              probwt);
626 627
  }
}
Thomas Davies's avatar
Thomas Davies committed
628
#endif  // CONFIG_EC_ADAPT
Fangwen Fu's avatar
Fangwen Fu committed
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

#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;
#if CONFIG_EC_ADAPT
  FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
  (void)cm;
#else
  FRAME_CONTEXT *ec_ctx = cm->fc;
  (void)xd;
#endif

  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);
  }
}

#if !CONFIG_EC_ADAPT
static void update_delta_lf_probs(AV1_COMMON *cm, aom_writer *w,
                                  FRAME_COUNTS *counts) {
  int k;
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
  if (!cm->delta_lf_present_flag) return;
  for (k = 0; k < DELTA_LF_PROBS; ++k) {
    av1_cond_prob_diff_update(w, &cm->fc->delta_lf_prob[k], counts->delta_lf[k],
                              probwt);
  }
}
#endif  // CONFIG_EC_ADAPT
#endif  // CONFIG_EXT_DELTA_Q
Thomas Davies's avatar
Thomas Davies committed
676
#endif  // CONFIG_DELTA_Q
677

Yaowu Xu's avatar
Yaowu Xu committed
678
static void update_skip_probs(AV1_COMMON *cm, aom_writer *w,
Jingning Han's avatar
Jingning Han committed
679 680
                              FRAME_COUNTS *counts) {
  int k;
681 682 683 684 685 686 687 688 689
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
  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
690 691
}

692
#if !CONFIG_EC_ADAPT
Yaowu Xu's avatar
Yaowu Xu committed
693
static void update_switchable_interp_probs(AV1_COMMON *cm, aom_writer *w,
Jingning Han's avatar
Jingning Han committed
694 695
                                           FRAME_COUNTS *counts) {
  int j;
696
  for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) {
697 698 699 700 701 702 703 704
#if CONFIG_TILE_GROUPS
    const int probwt = cm->num_tg;
#else
    const int probwt = 1;
#endif
    prob_diff_update(
        av1_switchable_interp_tree, cm->fc->switchable_interp_prob[j],
        counts->switchable_interp[j], SWITCHABLE_FILTERS, probwt, w);
705
  }
Jingning Han's avatar
Jingning Han committed
706
}
707
#endif
Jingning Han's avatar
Jingning Han committed
708

709
#if !CONFIG_EC_ADAPT
710
#if CONFIG_EXT_TX
Yaowu Xu's avatar
Yaowu Xu committed
711 712 713
static void update_ext_tx_probs(AV1_COMMON *cm, aom_writer *w) {
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
714
  int i, j;
715
  int s;
716 717 718 719 720
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
721 722 723 724
  for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
    int savings = 0;
    int do_update = 0;
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
725
      if (!use_inter_ext_tx_for_txsize[s][i]) continue;
726
      savings += prob_diff_update_savings(
Yaowu Xu's avatar
Yaowu Xu committed
727
          av1_ext_tx_inter_tree[s], cm->fc->inter_ext_tx_prob[s][i],
728 729
          cm->counts.inter_ext_tx[s][i],
          num_ext_tx_set[ext_tx_set_type_inter[s]], probwt);
730 731
    }
    do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
732
    aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
733 734
    if (do_update) {
      for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
735
        if (!use_inter_ext_tx_for_txsize[s][i]) continue;
736 737 738 739
        prob_diff_update(av1_ext_tx_inter_tree[s],
                         cm->fc->inter_ext_tx_prob[s][i],
                         cm->counts.inter_ext_tx[s][i],
                         num_ext_tx_set[ext_tx_set_type_inter[s]], probwt, w);
740
      }
741 742
    }
  }
743

744 745 746 747
  for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
    int savings = 0;
    int do_update = 0;
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
748
      if (!use_intra_ext_tx_for_txsize[s][i]) continue;
749
      for (j = 0; j < INTRA_MODES; ++j)
750
        savings += prob_diff_update_savings(
Yaowu Xu's avatar
Yaowu Xu committed
751
            av1_ext_tx_intra_tree[s], cm->fc->intra_ext_tx_prob[s][i][j],
752 753
            cm->counts.intra_ext_tx[s][i][j],
            num_ext_tx_set[ext_tx_set_type_intra[s]], probwt);
754 755
    }
    do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
756
    aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
757 758
    if (do_update) {
      for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
759
        if (!use_intra_ext_tx_for_txsize[s][i]) continue;
760
        for (j = 0; j < INTRA_MODES; ++j)
761 762 763
          prob_diff_update(av1_ext_tx_intra_tree[s],
                           cm->fc->intra_ext_tx_prob[s][i][j],
                           cm->counts.intra_ext_tx[s][i][j],
764
                           num_ext_tx_set[ext_tx_set_type_intra[s]], probwt, w);
765 766
      }
    }
767
  }
768
}
Debargha Mukherjee's avatar
Debargha Mukherjee committed
769

770
#else
Yaowu Xu's avatar
Yaowu Xu committed
771 772 773
static void update_ext_tx_probs(AV1_COMMON *cm, aom_writer *w) {
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
774 775 776 777
  int i, j;

  int savings = 0;
  int do_update = 0;
778 779 780 781 782
#if CONFIG_TILE_GROUPS
  const int probwt = cm->num_tg;
#else
  const int probwt = 1;
#endif
783 784 785
  for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
    for (j = 0; j < TX_TYPES; ++j)
      savings += prob_diff_update_savings(
Yaowu Xu's avatar
Yaowu Xu committed
786
          av1_ext_tx_tree, cm->fc->intra_ext_tx_prob[i][j],
787
          cm->counts.intra_ext_tx[i][j], TX_TYPES, probwt);
788 789
  }
  do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
790
  aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
791 792
  if (do_update) {
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
793
      for (j = 0; j < TX_TYPES; ++j) {
Yaowu Xu's avatar
Yaowu Xu committed
794
        prob_diff_update(av1_ext_tx_tree, cm->fc->intra_ext_tx_prob[i][j],
795
                         cm->counts.intra_ext_tx[i][j], TX_TYPES, probwt, w);
796
      }
797 798
    }
  }
799

800 801
  savings = 0;
  for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
802
    savings +=
Yaowu Xu's avatar
Yaowu Xu committed
803
        prob_diff_update_savings(av1_ext_tx_tree, cm->fc->inter_ext_tx_prob[i],
804
                                 cm->counts.inter_ext_tx[i], TX_TYPES, probwt);
805 806
  }
  do_update = savings > savings_thresh;
Yaowu Xu's avatar
Yaowu Xu committed
807
  aom_write(w, do_update, GROUP_DIFF_UPDATE_PROB);
808 809
  if (do_update) {
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
Yaowu Xu's avatar
Yaowu Xu committed
810
      prob_diff_update(av1_ext_tx_tree, cm->fc->inter_ext_tx_prob[i],
811
                       cm->counts.inter_ext_tx[i], TX_TYPES, probwt, w);
812 813 814
    }
  }
}
815
#endif  // CONFIG_EXT_TX
816
#endif  // !CONFIG_EC_ADAPT
817
#if CONFIG_PALETTE
Yaowu Xu's avatar
Yaowu Xu committed
818
static void pack_palette_tokens(aom_writer *w, const TOKENEXTRA **tp, int n,
819
                                int num) {
hui su's avatar
hui su committed
820
  int i;
821
  const TOKENEXTRA *p = *tp;
hui su's avatar
hui su committed
822

823
  for (i = 0; i < num; ++i) {
824 825 826
    av1_write_token(
        w, av1_palette_color_index_tree[n - PALETTE_MIN_SIZE], p->context_tree,
        &palette_color_index_encodings[n - PALETTE_MIN_SIZE][p->token]);
hui su's avatar
hui su committed
827 828 829 830 831
    ++p;
  }

  *tp = p;
}
832
#endif  // CONFIG_PALETTE
833

834
#if !CONFIG_PVQ
835
#if CONFIG_SUPERTX
836
static void update_supertx_probs(AV1_COMMON *cm, int probwt, aom_writer *w) {
Yaowu Xu's avatar
Yaowu Xu committed
837 838
  const int savings_thresh = av1_cost_one(GROUP_DIFF_UPDATE_PROB) -
                             av1_cost_zero(GROUP_DIFF_UPDATE_PROB);
839 840 841 842
  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
843
    for (j = TX_8X8; j < TX_SIZES; ++j) {
844 845
      savings += av1_cond_prob_diff_update_savings(
          &cm->fc->supertx_prob[i][j], cm->counts.supertx[i][j], probwt);
846 847 848
    }
  }
  do_update = savings > savings_thresh;