decodeframe.c 151 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
14
 */

#include <assert.h>
#include <stdlib.h>  // qsort()

Yaowu Xu's avatar
Yaowu Xu committed
15
16
17
#include "./aom_config.h"
#include "./aom_dsp_rtcd.h"
#include "./aom_scale_rtcd.h"
Jingning Han's avatar
Jingning Han committed
18
#include "./av1_rtcd.h"
Jingning Han's avatar
Jingning Han committed
19

20
#include "aom/aom_codec.h"
Yaowu Xu's avatar
Yaowu Xu committed
21
#include "aom_dsp/aom_dsp_common.h"
Jingning Han's avatar
Jingning Han committed
22
23
#include "aom_dsp/bitreader.h"
#include "aom_dsp/bitreader_buffer.h"
Yaowu Xu's avatar
Yaowu Xu committed
24
#include "aom_mem/aom_mem.h"
25
26
#include "aom_ports/mem.h"
#include "aom_ports/mem_ops.h"
Yaowu Xu's avatar
Yaowu Xu committed
27
28
#include "aom_scale/aom_scale.h"
#include "aom_util/aom_thread.h"
Jingning Han's avatar
Jingning Han committed
29

30
#include "av1/common/alloccommon.h"
31
#if CONFIG_CLPF
32
#include "av1/common/clpf.h"
33
#endif
34
#include "av1/common/common.h"
Yaowu Xu's avatar
Yaowu Xu committed
35
#if CONFIG_DERING
36
#include "av1/common/dering.h"
Yaowu Xu's avatar
Yaowu Xu committed
37
#endif  // CONFIG_DERING
38
39
40
41
42
43
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
#include "av1/common/idct.h"
#include "av1/common/pred_common.h"
#include "av1/common/quant_common.h"
#include "av1/common/reconinter.h"
Jingning Han's avatar
Jingning Han committed
44
#include "av1/common/reconintra.h"
45
#include "av1/common/seg_common.h"
Jingning Han's avatar
Jingning Han committed
46
#include "av1/common/thread_common.h"
47
#include "av1/common/tile_common.h"
48

49
50
51
#include "av1/decoder/decodeframe.h"
#include "av1/decoder/decodemv.h"
#include "av1/decoder/decoder.h"
Jingning Han's avatar
Jingning Han committed
52
#include "av1/decoder/detokenize.h"
53
#include "av1/decoder/dsubexp.h"
Jingning Han's avatar
Jingning Han committed
54

Yaowu Xu's avatar
Yaowu Xu committed
55
#define MAX_AV1_HEADER_SIZE 80
Jingning Han's avatar
Jingning Han committed
56

Yaowu Xu's avatar
Yaowu Xu committed
57
static int is_compound_reference_allowed(const AV1_COMMON *cm) {
Jingning Han's avatar
Jingning Han committed
58
  int i;
59
  if (frame_is_intra_only(cm)) return 0;
60
  for (i = 1; i < INTER_REFS_PER_FRAME; ++i)
61
    if (cm->ref_frame_sign_bias[i + 1] != cm->ref_frame_sign_bias[1]) return 1;
Jingning Han's avatar
Jingning Han committed
62
63
64
65

  return 0;
}

Yaowu Xu's avatar
Yaowu Xu committed
66
static void setup_compound_reference_mode(AV1_COMMON *cm) {
67
#if CONFIG_EXT_REFS
68
  cm->comp_fwd_ref[0] = LAST_FRAME;
69
70
71
72
  cm->comp_fwd_ref[1] = LAST2_FRAME;
  cm->comp_fwd_ref[2] = LAST3_FRAME;
  cm->comp_fwd_ref[3] = GOLDEN_FRAME;

73
74
  cm->comp_bwd_ref[0] = BWDREF_FRAME;
  cm->comp_bwd_ref[1] = ALTREF_FRAME;
75
#else
Jingning Han's avatar
Jingning Han committed
76
  if (cm->ref_frame_sign_bias[LAST_FRAME] ==
77
      cm->ref_frame_sign_bias[GOLDEN_FRAME]) {
Jingning Han's avatar
Jingning Han committed
78
79
80
81
    cm->comp_fixed_ref = ALTREF_FRAME;
    cm->comp_var_ref[0] = LAST_FRAME;
    cm->comp_var_ref[1] = GOLDEN_FRAME;
  } else if (cm->ref_frame_sign_bias[LAST_FRAME] ==
82
             cm->ref_frame_sign_bias[ALTREF_FRAME]) {
Jingning Han's avatar
Jingning Han committed
83
84
85
86
87
88
89
90
    cm->comp_fixed_ref = GOLDEN_FRAME;
    cm->comp_var_ref[0] = LAST_FRAME;
    cm->comp_var_ref[1] = ALTREF_FRAME;
  } else {
    cm->comp_fixed_ref = LAST_FRAME;
    cm->comp_var_ref[0] = GOLDEN_FRAME;
    cm->comp_var_ref[1] = ALTREF_FRAME;
  }
91
#endif  // CONFIG_EXT_REFS
Jingning Han's avatar
Jingning Han committed
92
93
94
95
96
97
}

static int read_is_valid(const uint8_t *start, size_t len, const uint8_t *end) {
  return len != 0 && len <= (size_t)(end - start);
}

Yaowu Xu's avatar
Yaowu Xu committed
98
99
static int decode_unsigned_max(struct aom_read_bit_buffer *rb, int max) {
  const int data = aom_rb_read_literal(rb, get_unsigned_bits(max));
Jingning Han's avatar
Jingning Han committed
100
101
102
  return data > max ? max : data;
}

Yaowu Xu's avatar
Yaowu Xu committed
103
104
static TX_MODE read_tx_mode(struct aom_read_bit_buffer *rb) {
  return aom_rb_read_bit(rb) ? TX_MODE_SELECT : aom_rb_read_literal(rb, 2);
105
}
Jingning Han's avatar
Jingning Han committed
106

Yaowu Xu's avatar
Yaowu Xu committed
107
static void read_switchable_interp_probs(FRAME_CONTEXT *fc, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
108
109
110
  int i, j;
  for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
    for (i = 0; i < SWITCHABLE_FILTERS - 1; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
111
      av1_diff_update_prob(r, &fc->switchable_interp_prob[j][i]);
Jingning Han's avatar
Jingning Han committed
112
113
}

Yaowu Xu's avatar
Yaowu Xu committed
114
static void read_inter_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
115
116
117
  int i;
#if CONFIG_REF_MV
  for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
118
    av1_diff_update_prob(r, &fc->newmv_prob[i]);
119
  for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
120
    av1_diff_update_prob(r, &fc->zeromv_prob[i]);
121
  for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
122
    av1_diff_update_prob(r, &fc->refmv_prob[i]);
123
  for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
124
    av1_diff_update_prob(r, &fc->drl_prob[i]);
Yue Chen's avatar
Yue Chen committed
125
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
126
  av1_diff_update_prob(r, &fc->new2mv_prob);
Yue Chen's avatar
Yue Chen committed
127
#endif  // CONFIG_EXT_INTER
128
129
#else
  int j;
Jingning Han's avatar
Jingning Han committed
130
131
  for (i = 0; i < INTER_MODE_CONTEXTS; ++i)
    for (j = 0; j < INTER_MODES - 1; ++j)
Yaowu Xu's avatar
Yaowu Xu committed
132
      av1_diff_update_prob(r, &fc->inter_mode_probs[i][j]);
133
#endif
Jingning Han's avatar
Jingning Han committed
134
135
}

136
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
137
static void read_inter_compound_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
138
  int i, j;
Yaowu Xu's avatar
Yaowu Xu committed
139
  if (aom_read(r, GROUP_DIFF_UPDATE_PROB)) {
140
141
    for (j = 0; j < INTER_MODE_CONTEXTS; ++j) {
      for (i = 0; i < INTER_COMPOUND_MODES - 1; ++i) {
Yaowu Xu's avatar
Yaowu Xu committed
142
        av1_diff_update_prob(r, &fc->inter_compound_mode_probs[j][i]);
143
144
145
146
147
148
      }
    }
  }
}
#endif  // CONFIG_EXT_INTER

149
static REFERENCE_MODE read_frame_reference_mode(
Yaowu Xu's avatar
Yaowu Xu committed
150
    const AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
151
  if (is_compound_reference_allowed(cm)) {
Yaowu Xu's avatar
Yaowu Xu committed
152
    return aom_rb_read_bit(rb)
153
               ? REFERENCE_MODE_SELECT
Yaowu Xu's avatar
Yaowu Xu committed
154
               : (aom_rb_read_bit(rb) ? COMPOUND_REFERENCE : SINGLE_REFERENCE);
155
156
157
158
  } else {
    return SINGLE_REFERENCE;
  }
}
Jingning Han's avatar
Jingning Han committed
159

Yaowu Xu's avatar
Yaowu Xu committed
160
static void read_frame_reference_mode_probs(AV1_COMMON *cm, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
161
  FRAME_CONTEXT *const fc = cm->fc;
162
  int i, j;
Jingning Han's avatar
Jingning Han committed
163
164
165

  if (cm->reference_mode == REFERENCE_MODE_SELECT)
    for (i = 0; i < COMP_INTER_CONTEXTS; ++i)
Yaowu Xu's avatar
Yaowu Xu committed
166
      av1_diff_update_prob(r, &fc->comp_inter_prob[i]);
Jingning Han's avatar
Jingning Han committed
167

168
  if (cm->reference_mode != COMPOUND_REFERENCE) {
Jingning Han's avatar
Jingning Han committed
169
    for (i = 0; i < REF_CONTEXTS; ++i) {
170
      for (j = 0; j < (SINGLE_REFS - 1); ++j) {
Yaowu Xu's avatar
Yaowu Xu committed
171
        av1_diff_update_prob(r, &fc->single_ref_prob[i][j]);
172
      }
Jingning Han's avatar
Jingning Han committed
173
    }
174
  }
Jingning Han's avatar
Jingning Han committed
175

176
177
  if (cm->reference_mode != SINGLE_REFERENCE) {
    for (i = 0; i < REF_CONTEXTS; ++i) {
178
#if CONFIG_EXT_REFS
179
      for (j = 0; j < (FWD_REFS - 1); ++j)
Yaowu Xu's avatar
Yaowu Xu committed
180
        av1_diff_update_prob(r, &fc->comp_ref_prob[i][j]);
181
      for (j = 0; j < (BWD_REFS - 1); ++j)
Yaowu Xu's avatar
Yaowu Xu committed
182
        av1_diff_update_prob(r, &fc->comp_bwdref_prob[i][j]);
183
184
#else
      for (j = 0; j < (COMP_REFS - 1); ++j)
Yaowu Xu's avatar
Yaowu Xu committed
185
        av1_diff_update_prob(r, &fc->comp_ref_prob[i][j]);
186
#endif  // CONFIG_EXT_REFS
187
188
    }
  }
Jingning Han's avatar
Jingning Han committed
189
190
}

Yaowu Xu's avatar
Yaowu Xu committed
191
static void update_mv_probs(aom_prob *p, int n, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
192
  int i;
Yaowu Xu's avatar
Yaowu Xu committed
193
  for (i = 0; i < n; ++i) av1_diff_update_prob(r, &p[i]);
Jingning Han's avatar
Jingning Han committed
194
195
}

Yaowu Xu's avatar
Yaowu Xu committed
196
static void read_mv_probs(nmv_context *ctx, int allow_hp, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
  int i, j;

  update_mv_probs(ctx->joints, MV_JOINTS - 1, r);

  for (i = 0; i < 2; ++i) {
    nmv_component *const comp_ctx = &ctx->comps[i];
    update_mv_probs(&comp_ctx->sign, 1, r);
    update_mv_probs(comp_ctx->classes, MV_CLASSES - 1, r);
    update_mv_probs(comp_ctx->class0, CLASS0_SIZE - 1, r);
    update_mv_probs(comp_ctx->bits, MV_OFFSET_BITS, r);
  }

  for (i = 0; i < 2; ++i) {
    nmv_component *const comp_ctx = &ctx->comps[i];
    for (j = 0; j < CLASS0_SIZE; ++j)
      update_mv_probs(comp_ctx->class0_fp[j], MV_FP_SIZE - 1, r);
    update_mv_probs(comp_ctx->fp, 3, r);
  }

  if (allow_hp) {
    for (i = 0; i < 2; ++i) {
      nmv_component *const comp_ctx = &ctx->comps[i];
      update_mv_probs(&comp_ctx->class0_hp, 1, r);
      update_mv_probs(&comp_ctx->hp, 1, r);
    }
  }
}

225
static void inverse_transform_block(MACROBLOCKD *xd, int plane,
226
                                    const TX_TYPE tx_type,
227
228
                                    const TX_SIZE tx_size, uint8_t *dst,
                                    int stride, int eob) {
Jingning Han's avatar
Jingning Han committed
229
230
231
  struct macroblockd_plane *const pd = &xd->plane[plane];
  if (eob > 0) {
    tran_low_t *const dqcoeff = pd->dqcoeff;
Angie Chiang's avatar
Angie Chiang committed
232
233
234
235
    INV_TXFM_PARAM inv_txfm_param;
    inv_txfm_param.tx_type = tx_type;
    inv_txfm_param.tx_size = tx_size;
    inv_txfm_param.eob = eob;
236
    inv_txfm_param.lossless = xd->lossless[xd->mi[0]->mbmi.segment_id];
Angie Chiang's avatar
Angie Chiang committed
237

Yaowu Xu's avatar
Yaowu Xu committed
238
#if CONFIG_AOM_HIGHBITDEPTH
Jingning Han's avatar
Jingning Han committed
239
    if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
Angie Chiang's avatar
Angie Chiang committed
240
241
      inv_txfm_param.bd = xd->bd;
      highbd_inv_txfm_add(dqcoeff, dst, stride, &inv_txfm_param);
Jingning Han's avatar
Jingning Han committed
242
    } else {
Yaowu Xu's avatar
Yaowu Xu committed
243
#endif  // CONFIG_AOM_HIGHBITDEPTH
Angie Chiang's avatar
Angie Chiang committed
244
      inv_txfm_add(dqcoeff, dst, stride, &inv_txfm_param);
Yaowu Xu's avatar
Yaowu Xu committed
245
#if CONFIG_AOM_HIGHBITDEPTH
Jingning Han's avatar
Jingning Han committed
246
    }
Yaowu Xu's avatar
Yaowu Xu committed
247
#endif  // CONFIG_AOM_HIGHBITDEPTH
Jingning Han's avatar
Jingning Han committed
248
249
250
251

    if (eob == 1) {
      dqcoeff[0] = 0;
    } else {
252
      if (tx_type == DCT_DCT && tx_size <= TX_16X16 && eob <= 10)
253
        memset(dqcoeff, 0, 4 * 4 * num_4x4_blocks_wide_txsize_lookup[tx_size] *
254
                               sizeof(dqcoeff[0]));
255
256
#if CONFIG_EXT_TX
      else
257
        memset(dqcoeff, 0, get_tx2d_size(tx_size) * sizeof(dqcoeff[0]));
258
#else
Jingning Han's avatar
Jingning Han committed
259
260
261
      else if (tx_size == TX_32X32 && eob <= 34)
        memset(dqcoeff, 0, 256 * sizeof(dqcoeff[0]));
      else
262
        memset(dqcoeff, 0, get_tx2d_size(tx_size) * sizeof(dqcoeff[0]));
263
#endif
Jingning Han's avatar
Jingning Han committed
264
265
266
267
268
    }
  }
}

static void predict_and_reconstruct_intra_block(MACROBLOCKD *const xd,
Alex Converse's avatar
Alex Converse committed
269
270
271
#if CONFIG_ANS
                                                struct AnsDecoder *const r,
#else
Yaowu Xu's avatar
Yaowu Xu committed
272
                                                aom_reader *r,
Alex Converse's avatar
Alex Converse committed
273
#endif  // CONFIG_ANS
Jingning Han's avatar
Jingning Han committed
274
                                                MB_MODE_INFO *const mbmi,
275
                                                int plane, int row, int col,
Jingning Han's avatar
Jingning Han committed
276
277
278
                                                TX_SIZE tx_size) {
  struct macroblockd_plane *const pd = &xd->plane[plane];
  PREDICTION_MODE mode = (plane == 0) ? mbmi->mode : mbmi->uv_mode;
hui su's avatar
hui su committed
279
  PLANE_TYPE plane_type = (plane == 0) ? PLANE_TYPE_Y : PLANE_TYPE_UV;
Jingning Han's avatar
Jingning Han committed
280
  uint8_t *dst;
hui su's avatar
hui su committed
281
  int block_idx = (row << 1) + col;
Jingning Han's avatar
Jingning Han committed
282
283
284
  dst = &pd->dst.buf[4 * row * pd->dst.stride + 4 * col];

  if (mbmi->sb_type < BLOCK_8X8)
285
    if (plane == 0) mode = xd->mi[0]->bmi[(row << 1) + col].as_mode;
Jingning Han's avatar
Jingning Han committed
286

Yaowu Xu's avatar
Yaowu Xu committed
287
288
  av1_predict_intra_block(xd, pd->n4_wl, pd->n4_hl, tx_size, mode, dst,
                          pd->dst.stride, dst, pd->dst.stride, col, row, plane);
Jingning Han's avatar
Jingning Han committed
289
290

  if (!mbmi->skip) {
hui su's avatar
hui su committed
291
    TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
292
    const scan_order *sc = get_scan(tx_size, tx_type, 0);
Yaowu Xu's avatar
Yaowu Xu committed
293
294
    const int eob = av1_decode_block_tokens(xd, plane, sc, col, row, tx_size,
                                            tx_type, r, mbmi->segment_id);
295
296
    inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
                            eob);
Jingning Han's avatar
Jingning Han committed
297
298
299
  }
}

300
#if CONFIG_VAR_TX
Yaowu Xu's avatar
Yaowu Xu committed
301
static void decode_reconstruct_tx(MACROBLOCKD *const xd, aom_reader *r,
302
303
304
305
                                  MB_MODE_INFO *const mbmi, int plane,
                                  BLOCK_SIZE plane_bsize, int block,
                                  int blk_row, int blk_col, TX_SIZE tx_size,
                                  int *eob_total) {
306
  const struct macroblockd_plane *const pd = &xd->plane[plane];
307
  const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
308
309
  const int tx_row = blk_row >> (1 - pd->subsampling_y);
  const int tx_col = blk_col >> (1 - pd->subsampling_x);
310
  const TX_SIZE plane_tx_size =
311
      plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0]
312
            : mbmi->inter_tx_size[tx_row][tx_col];
313
314
315
316
317
318
319
320
  int max_blocks_high = num_4x4_blocks_high_lookup[plane_bsize];
  int max_blocks_wide = num_4x4_blocks_wide_lookup[plane_bsize];

  if (xd->mb_to_bottom_edge < 0)
    max_blocks_high += xd->mb_to_bottom_edge >> (5 + pd->subsampling_y);
  if (xd->mb_to_right_edge < 0)
    max_blocks_wide += xd->mb_to_right_edge >> (5 + pd->subsampling_x);

321
  if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
322

323
  if (tx_size == plane_tx_size) {
324
    PLANE_TYPE plane_type = (plane == 0) ? PLANE_TYPE_Y : PLANE_TYPE_UV;
325
326
    TX_TYPE tx_type = get_tx_type(plane_type, xd, block, plane_tx_size);
    const scan_order *sc = get_scan(plane_tx_size, tx_type, 1);
327
    const int eob =
Yaowu Xu's avatar
Yaowu Xu committed
328
329
        av1_decode_block_tokens(xd, plane, sc, blk_col, blk_row, plane_tx_size,
                                tx_type, r, mbmi->segment_id);
330
331
    inverse_transform_block(
        xd, plane, tx_type, plane_tx_size,
332
        &pd->dst.buf[4 * blk_row * pd->dst.stride + 4 * blk_col],
333
        pd->dst.stride, eob);
334
335
336
337
338
339
340
341
342
343
344
    *eob_total += eob;
  } else {
    int bsl = b_width_log2_lookup[bsize];
    int i;

    assert(bsl > 0);
    --bsl;

    for (i = 0; i < 4; ++i) {
      const int offsetr = blk_row + ((i >> 1) << bsl);
      const int offsetc = blk_col + ((i & 0x01) << bsl);
345
      int step = num_4x4_blocks_txsize_lookup[tx_size - 1];
346

347
      if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
348
349
350
351
352
353

      decode_reconstruct_tx(xd, r, mbmi, plane, plane_bsize, block + i * step,
                            offsetr, offsetc, tx_size - 1, eob_total);
    }
  }
}
354
#endif  // CONFIG_VAR_TX
355

356
#if !CONFIG_VAR_TX || CONFIG_SUPERTX || (CONFIG_EXT_TX && CONFIG_RECT_TX)
Alex Converse's avatar
Alex Converse committed
357
358
359
360
static int reconstruct_inter_block(MACROBLOCKD *const xd,
#if CONFIG_ANS
                                   struct AnsDecoder *const r,
#else
Yaowu Xu's avatar
Yaowu Xu committed
361
                                   aom_reader *r,
Alex Converse's avatar
Alex Converse committed
362
#endif
363
364
                                   int segment_id, int plane, int row, int col,
                                   TX_SIZE tx_size) {
Jingning Han's avatar
Jingning Han committed
365
  struct macroblockd_plane *const pd = &xd->plane[plane];
hui su's avatar
hui su committed
366
367
  PLANE_TYPE plane_type = (plane == 0) ? PLANE_TYPE_Y : PLANE_TYPE_UV;
  int block_idx = (row << 1) + col;
hui su's avatar
hui su committed
368
  TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
369
  const scan_order *sc = get_scan(tx_size, tx_type, 1);
Yaowu Xu's avatar
Yaowu Xu committed
370
371
  const int eob = av1_decode_block_tokens(xd, plane, sc, col, row, tx_size,
                                          tx_type, r, segment_id);
Jingning Han's avatar
Jingning Han committed
372

373
374
375
  inverse_transform_block(xd, plane, tx_type, tx_size,
                          &pd->dst.buf[4 * row * pd->dst.stride + 4 * col],
                          pd->dst.stride, eob);
Jingning Han's avatar
Jingning Han committed
376
377
  return eob;
}
378
#endif  // !CONFIG_VAR_TX || CONFIG_SUPER_TX
Jingning Han's avatar
Jingning Han committed
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399

static INLINE void dec_reset_skip_context(MACROBLOCKD *xd) {
  int i;
  for (i = 0; i < MAX_MB_PLANE; i++) {
    struct macroblockd_plane *const pd = &xd->plane[i];
    memset(pd->above_context, 0, sizeof(ENTROPY_CONTEXT) * pd->n4_w);
    memset(pd->left_context, 0, sizeof(ENTROPY_CONTEXT) * pd->n4_h);
  }
}

static void set_plane_n4(MACROBLOCKD *const xd, int bw, int bh, int bwl,
                         int bhl) {
  int i;
  for (i = 0; i < MAX_MB_PLANE; i++) {
    xd->plane[i].n4_w = (bw << 1) >> xd->plane[i].subsampling_x;
    xd->plane[i].n4_h = (bh << 1) >> xd->plane[i].subsampling_y;
    xd->plane[i].n4_wl = bwl - xd->plane[i].subsampling_x;
    xd->plane[i].n4_hl = bhl - xd->plane[i].subsampling_y;
  }
}

Yaowu Xu's avatar
Yaowu Xu committed
400
static MB_MODE_INFO *set_offsets(AV1_COMMON *const cm, MACROBLOCKD *const xd,
Jingning Han's avatar
Jingning Han committed
401
                                 BLOCK_SIZE bsize, int mi_row, int mi_col,
402
403
                                 int bw, int bh, int x_mis, int y_mis, int bwl,
                                 int bhl) {
Jingning Han's avatar
Jingning Han committed
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
  const int offset = mi_row * cm->mi_stride + mi_col;
  int x, y;
  const TileInfo *const tile = &xd->tile;

  xd->mi = cm->mi_grid_visible + offset;
  xd->mi[0] = &cm->mi[offset];
  // TODO(slavarnway): Generate sb_type based on bwl and bhl, instead of
  // passing bsize from decode_partition().
  xd->mi[0]->mbmi.sb_type = bsize;
  for (y = 0; y < y_mis; ++y)
    for (x = !y; x < x_mis; ++x) {
      xd->mi[y * cm->mi_stride + x] = xd->mi[0];
    }

  set_plane_n4(xd, bw, bh, bwl, bhl);

  set_skip_context(xd, mi_row, mi_col);

422
423
424
425
#if CONFIG_VAR_TX
  xd->max_tx_size = max_txsize_lookup[bsize];
#endif

Jingning Han's avatar
Jingning Han committed
426
427
428
429
  // Distance of Mb to the various image edges. These are specified to 8th pel
  // as they are always compared to values that are in 1/8th pel units
  set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);

Yaowu Xu's avatar
Yaowu Xu committed
430
  av1_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
Jingning Han's avatar
Jingning Han committed
431
432
433
  return &xd->mi[0]->mbmi;
}

434
#if CONFIG_SUPERTX
Yaowu Xu's avatar
Yaowu Xu committed
435
static MB_MODE_INFO *set_offsets_extend(AV1_COMMON *const cm,
436
437
                                        MACROBLOCKD *const xd,
                                        const TileInfo *const tile,
438
439
440
                                        BLOCK_SIZE bsize_pred, int mi_row_pred,
                                        int mi_col_pred, int mi_row_ori,
                                        int mi_col_ori) {
441
442
443
444
445
446
447
448
449
450
  // Used in supertx
  // (mi_row_ori, mi_col_ori): location for mv
  // (mi_row_pred, mi_col_pred, bsize_pred): region to predict
  const int bw = num_8x8_blocks_wide_lookup[bsize_pred];
  const int bh = num_8x8_blocks_high_lookup[bsize_pred];
  const int offset = mi_row_ori * cm->mi_stride + mi_col_ori;
  const int bwl = b_width_log2_lookup[bsize_pred];
  const int bhl = b_height_log2_lookup[bsize_pred];
  xd->mi = cm->mi_grid_visible + offset;
  xd->mi[0] = cm->mi + offset;
451
452
  set_mi_row_col(xd, tile, mi_row_pred, bh, mi_col_pred, bw, cm->mi_rows,
                 cm->mi_cols);
453

454
455
  xd->up_available = (mi_row_ori > tile->mi_row_start);
  xd->left_available = (mi_col_ori > tile->mi_col_start);
456
457
458
459
460
461

  set_plane_n4(xd, bw, bh, bwl, bhl);

  return &xd->mi[0]->mbmi;
}

Yaowu Xu's avatar
Yaowu Xu committed
462
463
464
static MB_MODE_INFO *set_mb_offsets(AV1_COMMON *const cm, MACROBLOCKD *const xd,
                                    BLOCK_SIZE bsize, int mi_row, int mi_col,
                                    int bw, int bh, int x_mis, int y_mis) {
465
466
467
468
469
470
471
472
  const int offset = mi_row * cm->mi_stride + mi_col;
  const TileInfo *const tile = &xd->tile;
  int x, y;

  xd->mi = cm->mi_grid_visible + offset;
  xd->mi[0] = cm->mi + offset;
  xd->mi[0]->mbmi.sb_type = bsize;
  for (y = 0; y < y_mis; ++y)
473
    for (x = !y; x < x_mis; ++x) xd->mi[y * cm->mi_stride + x] = xd->mi[0];
474
475
476
477
478

  set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);
  return &xd->mi[0]->mbmi;
}

Yaowu Xu's avatar
Yaowu Xu committed
479
static void set_offsets_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
480
481
                                 const TileInfo *const tile, BLOCK_SIZE bsize,
                                 int mi_row, int mi_col) {
482
483
484
485
486
487
488
489
490
491
492
493
494
  const int bw = num_8x8_blocks_wide_lookup[bsize];
  const int bh = num_8x8_blocks_high_lookup[bsize];
  const int offset = mi_row * cm->mi_stride + mi_col;
  const int bwl = b_width_log2_lookup[bsize];
  const int bhl = b_height_log2_lookup[bsize];

  xd->mi = cm->mi_grid_visible + offset;
  xd->mi[0] = cm->mi + offset;

  set_plane_n4(xd, bw, bh, bwl, bhl);

  set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);

Yaowu Xu's avatar
Yaowu Xu committed
495
  av1_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
496
497
}

Yaowu Xu's avatar
Yaowu Xu committed
498
static void set_param_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
499
                               BLOCK_SIZE bsize, int mi_row, int mi_col,
500
                               int txfm, int skip) {
501
502
  const int bw = num_8x8_blocks_wide_lookup[bsize];
  const int bh = num_8x8_blocks_high_lookup[bsize];
Yaowu Xu's avatar
Yaowu Xu committed
503
504
  const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col);
  const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row);
505
506
507
508
509
510
511
512
513
514
515
  const int offset = mi_row * cm->mi_stride + mi_col;
  int x, y;

  xd->mi = cm->mi_grid_visible + offset;
  xd->mi[0] = cm->mi + offset;

  for (y = 0; y < y_mis; ++y)
    for (x = 0; x < x_mis; ++x) {
      xd->mi[y * cm->mi_stride + x]->mbmi.skip = skip;
      xd->mi[y * cm->mi_stride + x]->mbmi.tx_type = txfm;
    }
516
517
#if CONFIG_VAR_TX
  xd->above_txfm_context = cm->above_txfm_context + mi_col;
518
  xd->left_txfm_context =
519
      xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
520
  set_txfm_ctxs(xd->mi[0]->mbmi.tx_size, bw, bh, xd);
521
#endif
522
523
}

Yaowu Xu's avatar
Yaowu Xu committed
524
static void set_ref(AV1_COMMON *const cm, MACROBLOCKD *const xd, int idx,
525
                    int mi_row, int mi_col) {
526
527
528
  MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
  RefBuffer *ref_buffer = &cm->frame_refs[mbmi->ref_frame[idx] - LAST_FRAME];
  xd->block_refs[idx] = ref_buffer;
Yaowu Xu's avatar
Yaowu Xu committed
529
530
  if (!av1_is_valid_scale(&ref_buffer->sf))
    aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
531
                       "Invalid scale factors");
Yaowu Xu's avatar
Yaowu Xu committed
532
533
  av1_setup_pre_planes(xd, idx, ref_buffer->buf, mi_row, mi_col,
                       &ref_buffer->sf);
534
535
536
537
  xd->corrupted |= ref_buffer->buf->corrupted;
}

static void dec_predict_b_extend(
Yaowu Xu's avatar
Yaowu Xu committed
538
    AV1Decoder *const pbi, MACROBLOCKD *const xd, const TileInfo *const tile,
539
540
541
    int block, int mi_row_ori, int mi_col_ori, int mi_row_pred, int mi_col_pred,
    int mi_row_top, int mi_col_top, uint8_t *dst_buf[3], int dst_stride[3],
    BLOCK_SIZE bsize_top, BLOCK_SIZE bsize_pred, int b_sub8x8, int bextend) {
542
543
544
545
546
547
548
549
550
551
552
553
  // Used in supertx
  // (mi_row_ori, mi_col_ori): location for mv
  // (mi_row_pred, mi_col_pred, bsize_pred): region to predict
  // (mi_row_top, mi_col_top, bsize_top): region of the top partition size
  // block: sub location of sub8x8 blocks
  // b_sub8x8: 1: ori is sub8x8; 0: ori is not sub8x8
  // bextend: 1: region to predict is an extension of ori; 0: not
  int r = (mi_row_pred - mi_row_top) * MI_SIZE;
  int c = (mi_col_pred - mi_col_top) * MI_SIZE;
  const int mi_width_top = num_8x8_blocks_wide_lookup[bsize_top];
  const int mi_height_top = num_8x8_blocks_high_lookup[bsize_top];
  MB_MODE_INFO *mbmi;
Yaowu Xu's avatar
Yaowu Xu committed
554
  AV1_COMMON *const cm = &pbi->common;
555
556
557

  if (mi_row_pred < mi_row_top || mi_col_pred < mi_col_top ||
      mi_row_pred >= mi_row_top + mi_height_top ||
558
559
      mi_col_pred >= mi_col_top + mi_width_top || mi_row_pred >= cm->mi_rows ||
      mi_col_pred >= cm->mi_cols)
560
561
    return;

562
  mbmi = set_offsets_extend(cm, xd, tile, bsize_pred, mi_row_pred, mi_col_pred,
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
                            mi_row_ori, mi_col_ori);
  set_ref(cm, xd, 0, mi_row_pred, mi_col_pred);
  if (has_second_ref(&xd->mi[0]->mbmi))
    set_ref(cm, xd, 1, mi_row_pred, mi_col_pred);

  if (!bextend) {
    mbmi->tx_size = b_width_log2_lookup[bsize_top];
  }

  xd->plane[0].dst.stride = dst_stride[0];
  xd->plane[1].dst.stride = dst_stride[1];
  xd->plane[2].dst.stride = dst_stride[2];
  xd->plane[0].dst.buf = dst_buf[0] +
                         (r >> xd->plane[0].subsampling_y) * dst_stride[0] +
                         (c >> xd->plane[0].subsampling_x);
  xd->plane[1].dst.buf = dst_buf[1] +
                         (r >> xd->plane[1].subsampling_y) * dst_stride[1] +
                         (c >> xd->plane[1].subsampling_x);
  xd->plane[2].dst.buf = dst_buf[2] +
                         (r >> xd->plane[2].subsampling_y) * dst_stride[2] +
                         (c >> xd->plane[2].subsampling_x);

  if (!b_sub8x8)
Yaowu Xu's avatar
Yaowu Xu committed
586
    av1_build_inter_predictors_sb_extend(xd,
587
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
588
                                         mi_row_ori, mi_col_ori,
589
#endif  // CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
590
                                         mi_row_pred, mi_col_pred, bsize_pred);
591
  else
Yaowu Xu's avatar
Yaowu Xu committed
592
    av1_build_inter_predictors_sb_sub8x8_extend(xd,
593
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
594
                                                mi_row_ori, mi_col_ori,
595
#endif  // CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
596
597
                                                mi_row_pred, mi_col_pred,
                                                bsize_pred, block);
598
599
}

Yaowu Xu's avatar
Yaowu Xu committed
600
static void dec_extend_dir(AV1Decoder *const pbi, MACROBLOCKD *const xd,
601
                           const TileInfo *const tile, int block,
602
603
604
                           BLOCK_SIZE bsize, BLOCK_SIZE top_bsize, int mi_row,
                           int mi_col, int mi_row_top, int mi_col_top,
                           uint8_t *dst_buf[3], int dst_stride[3], int dir) {
605
606
607
608
609
610
611
612
613
614
615
  // dir: 0-lower, 1-upper, 2-left, 3-right
  //      4-lowerleft, 5-upperleft, 6-lowerright, 7-upperright
  const int mi_width = num_8x8_blocks_wide_lookup[bsize];
  const int mi_height = num_8x8_blocks_high_lookup[bsize];
  int xss = xd->plane[1].subsampling_x;
  int yss = xd->plane[1].subsampling_y;
  int b_sub8x8 = (bsize < BLOCK_8X8) ? 1 : 0;
  BLOCK_SIZE extend_bsize;
  int unit, mi_row_pred, mi_col_pred;

  if (dir == 0 || dir == 1) {
616
617
618
    extend_bsize = (mi_width == 1 || bsize < BLOCK_8X8 || xss < yss)
                       ? BLOCK_8X8
                       : BLOCK_16X8;
619
620
621
622
    unit = num_8x8_blocks_wide_lookup[extend_bsize];
    mi_row_pred = mi_row + ((dir == 0) ? mi_height : -1);
    mi_col_pred = mi_col;

623
624
625
    dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col, mi_row_pred,
                         mi_col_pred, mi_row_top, mi_col_top, dst_buf,
                         dst_stride, top_bsize, extend_bsize, b_sub8x8, 1);
626
627
628
629

    if (mi_width > unit) {
      int i;
      assert(!b_sub8x8);
630
      for (i = 0; i < mi_width / unit - 1; i++) {
631
        mi_col_pred += unit;
632
633
634
        dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col, mi_row_pred,
                             mi_col_pred, mi_row_top, mi_col_top, dst_buf,
                             dst_stride, top_bsize, extend_bsize, b_sub8x8, 1);
635
636
637
      }
    }
  } else if (dir == 2 || dir == 3) {
638
639
640
    extend_bsize = (mi_height == 1 || bsize < BLOCK_8X8 || yss < xss)
                       ? BLOCK_8X8
                       : BLOCK_8X16;
641
642
643
644
    unit = num_8x8_blocks_high_lookup[extend_bsize];
    mi_row_pred = mi_row;
    mi_col_pred = mi_col + ((dir == 3) ? mi_width : -1);

645
646
647
    dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col, mi_row_pred,
                         mi_col_pred, mi_row_top, mi_col_top, dst_buf,
                         dst_stride, top_bsize, extend_bsize, b_sub8x8, 1);
648
649
650

    if (mi_height > unit) {
      int i;
651
      for (i = 0; i < mi_height / unit - 1; i++) {
652
        mi_row_pred += unit;
653
654
655
        dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col, mi_row_pred,
                             mi_col_pred, mi_row_top, mi_col_top, dst_buf,
                             dst_stride, top_bsize, extend_bsize, b_sub8x8, 1);
656
657
658
659
660
661
      }
    }
  } else {
    extend_bsize = BLOCK_8X8;
    mi_row_pred = mi_row + ((dir == 4 || dir == 6) ? mi_height : -1);
    mi_col_pred = mi_col + ((dir == 6 || dir == 7) ? mi_width : -1);
662
663
664
    dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col, mi_row_pred,
                         mi_col_pred, mi_row_top, mi_col_top, dst_buf,
                         dst_stride, top_bsize, extend_bsize, b_sub8x8, 1);
665
666
667
  }
}

Yaowu Xu's avatar
Yaowu Xu committed
668
static void dec_extend_all(AV1Decoder *const pbi, MACROBLOCKD *const xd,
669
                           const TileInfo *const tile, int block,
670
671
672
                           BLOCK_SIZE bsize, BLOCK_SIZE top_bsize, int mi_row,
                           int mi_col, int mi_row_top, int mi_col_top,
                           uint8_t *dst_buf[3], int dst_stride[3]) {
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 0);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 1);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 2);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 3);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 4);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 5);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 6);
  dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
                 mi_row_top, mi_col_top, dst_buf, dst_stride, 7);
}

Yaowu Xu's avatar
Yaowu Xu committed
691
static void dec_predict_sb_complex(AV1Decoder *const pbi, MACROBLOCKD *const xd,
692
693
                                   const TileInfo *const tile, int mi_row,
                                   int mi_col, int mi_row_top, int mi_col_top,
694
695
                                   BLOCK_SIZE bsize, BLOCK_SIZE top_bsize,
                                   uint8_t *dst_buf[3], int dst_stride[3]) {
Yaowu Xu's avatar
Yaowu Xu committed
696
  const AV1_COMMON *const cm = &pbi->common;
697
698
699
  const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
  const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize);
  const BLOCK_SIZE subsize = get_subsize(bsize, partition);
700
#if CONFIG_EXT_PARTITION_TYPES
701
  const BLOCK_SIZE bsize2 = get_subsize(bsize, PARTITION_SPLIT);
702
#endif
703
704
  int i;
  const int mi_offset = mi_row * cm->mi_stride + mi_col;
705
706
  uint8_t *dst_buf1[3], *dst_buf2[3], *dst_buf3[3];

707
708
709
710
711
712
  DECLARE_ALIGNED(16, uint8_t, tmp_buf1[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
  DECLARE_ALIGNED(16, uint8_t, tmp_buf2[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
  DECLARE_ALIGNED(16, uint8_t, tmp_buf3[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
  int dst_stride1[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
  int dst_stride2[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
  int dst_stride3[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
713

Yaowu Xu's avatar
Yaowu Xu committed
714
#if CONFIG_AOM_HIGHBITDEPTH
715
716
717
  if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
    int len = sizeof(uint16_t);
    dst_buf1[0] = CONVERT_TO_BYTEPTR(tmp_buf1);
718
719
    dst_buf1[1] = CONVERT_TO_BYTEPTR(tmp_buf1 + MAX_TX_SQUARE * len);
    dst_buf1[2] = CONVERT_TO_BYTEPTR(tmp_buf1 + 2 * MAX_TX_SQUARE * len);
720
    dst_buf2[0] = CONVERT_TO_BYTEPTR(tmp_buf2);
721
722
    dst_buf2[1] = CONVERT_TO_BYTEPTR(tmp_buf2 + MAX_TX_SQUARE * len);
    dst_buf2[2] = CONVERT_TO_BYTEPTR(tmp_buf2 + 2 * MAX_TX_SQUARE * len);
723
    dst_buf3[0] = CONVERT_TO_BYTEPTR(tmp_buf3);
724
725
    dst_buf3[1] = CONVERT_TO_BYTEPTR(tmp_buf3 + MAX_TX_SQUARE * len);
    dst_buf3[2] = CONVERT_TO_BYTEPTR(tmp_buf3 + 2 * MAX_TX_SQUARE * len);
726
727
728
  } else {
#endif
    dst_buf1[0] = tmp_buf1;
729
730
    dst_buf1[1] = tmp_buf1 + MAX_TX_SQUARE;
    dst_buf1[2] = tmp_buf1 + 2 * MAX_TX_SQUARE;
731
    dst_buf2[0] = tmp_buf2;
732
733
    dst_buf2[1] = tmp_buf2 + MAX_TX_SQUARE;
    dst_buf2[2] = tmp_buf2 + 2 * MAX_TX_SQUARE;
734
    dst_buf3[0] = tmp_buf3;
735
736
    dst_buf3[1] = tmp_buf3 + MAX_TX_SQUARE;
    dst_buf3[2] = tmp_buf3 + 2 * MAX_TX_SQUARE;
Yaowu Xu's avatar
Yaowu Xu committed
737
#if CONFIG_AOM_HIGHBITDEPTH
738
739
740
  }
#endif

741
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return;
742

743
744
  xd->mi = cm->mi_grid_visible + mi_offset;
  xd->mi[0] = cm->mi + mi_offset;
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781

  for (i = 0; i < MAX_MB_PLANE; i++) {
    xd->plane[i].dst.buf = dst_buf[i];
    xd->plane[i].dst.stride = dst_stride[i];
  }

  switch (partition) {
    case PARTITION_NONE:
      assert(bsize < top_bsize);
      dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                           mi_row_top, mi_col_top, dst_buf, dst_stride,
                           top_bsize, bsize, 0, 0);
      dec_extend_all(pbi, xd, tile, 0, bsize, top_bsize, mi_row, mi_col,
                     mi_row_top, mi_col_top, dst_buf, dst_stride);
      break;
    case PARTITION_HORZ:
      if (bsize == BLOCK_8X8) {
        // For sub8x8, predict in 8x8 unit
        // First half
        dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf, dst_stride,
                             top_bsize, BLOCK_8X8, 1, 0);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride);

        // Second half
        dec_predict_b_extend(pbi, xd, tile, 2, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf1, dst_stride1,
                             top_bsize, BLOCK_8X8, 1, 1);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 2, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf1, dst_stride1);

        // weighted average to smooth the boundary
        xd->plane[0].dst.buf = dst_buf[0];
        xd->plane[0].dst.stride = dst_stride[0];
Yaowu Xu's avatar
Yaowu Xu committed
782
        av1_build_masked_inter_predictor_complex(
783
784
785
            xd, dst_buf[0], dst_stride[0], dst_buf1[0], dst_stride1[0], mi_row,
            mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_HORZ,
            0);
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
      } else {
        // First half
        dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf, dst_stride,
                             top_bsize, subsize, 0, 0);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride);
        else
          dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride, 0);

        if (mi_row + hbs < cm->mi_rows) {
          // Second half
          dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col,
801
802
                               mi_row + hbs, mi_col, mi_row_top, mi_col_top,
                               dst_buf1, dst_stride1, top_bsize, subsize, 0, 0);
803
          if (bsize < top_bsize)
804
805
806
            dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
                           mi_col, mi_row_top, mi_col_top, dst_buf1,
                           dst_stride1);
807
          else
808
809
810
            dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
                           mi_col, mi_row_top, mi_col_top, dst_buf1,
                           dst_stride1, 1);
811
812
813
814
815

          // weighted average to smooth the boundary
          for (i = 0; i < MAX_MB_PLANE; i++) {
            xd->plane[i].dst.buf = dst_buf[i];
            xd->plane[i].dst.stride = dst_stride[i];
Yaowu Xu's avatar
Yaowu Xu committed
816
            av1_build_masked_inter_predictor_complex(
817
                xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
818
819
                mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
                PARTITION_HORZ, i);
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
          }
        }
      }
      break;
    case PARTITION_VERT:
      if (bsize == BLOCK_8X8) {
        // First half
        dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf, dst_stride,
                             top_bsize, BLOCK_8X8, 1, 0);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride);

        // Second half
        dec_predict_b_extend(pbi, xd, tile, 1, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf1, dst_stride1,
                             top_bsize, BLOCK_8X8, 1, 1);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 1, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf1, dst_stride1);

        // Smooth
        xd->plane[0].dst.buf = dst_buf[0];
        xd->plane[0].dst.stride = dst_stride[0];
Yaowu Xu's avatar
Yaowu Xu committed
845
        av1_build_masked_inter_predictor_complex(
846
847
848
            xd, dst_buf[0], dst_stride[0], dst_buf1[0], dst_stride1[0], mi_row,
            mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_VERT,
            0);
849
850
851
852
853
854
855
856
857
858
859
860
861
862
      } else {
        // First half
        dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf, dst_stride,
                             top_bsize, subsize, 0, 0);
        if (bsize < top_bsize)
          dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride);
        else
          dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride, 3);

        // Second half
        if (mi_col + hbs < cm->mi_cols) {
863
864
865
          dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
                               mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
                               dst_stride1, top_bsize, subsize, 0, 0);
866
          if (bsize < top_bsize)
867
868
869
            dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
                           mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
                           dst_stride1);
870
          else
871
872
873
            dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
                           mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
                           dst_stride1, 2);
874
875
876
877
878

          // Smooth
          for (i = 0; i < MAX_MB_PLANE; i++) {
            xd->plane[i].dst.buf = dst_buf[i];
            xd->plane[i].dst.stride = dst_stride[i];
Yaowu Xu's avatar
Yaowu Xu committed
879
            av1_build_masked_inter_predictor_complex(
880
                xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
881
882
                mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
                PARTITION_VERT, i);
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
          }
        }
      }
      break;
    case PARTITION_SPLIT:
      if (bsize == BLOCK_8X8) {
        dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf, dst_stride,
                             top_bsize, BLOCK_8X8, 1, 0);
        dec_predict_b_extend(pbi, xd, tile, 1, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf1, dst_stride1,
                             top_bsize, BLOCK_8X8, 1, 1);
        dec_predict_b_extend(pbi, xd, tile, 2, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf2, dst_stride2,
                             top_bsize, BLOCK_8X8, 1, 1);
        dec_predict_b_extend(pbi, xd, tile, 3, mi_row, mi_col, mi_row, mi_col,
                             mi_row_top, mi_col_top, dst_buf3, dst_stride3,
                             top_bsize, BLOCK_8X8, 1, 1);
        if (bsize < top_bsize) {
          dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf, dst_stride);
          dec_extend_all(pbi, xd, tile, 1, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf1, dst_stride1);
          dec_extend_all(pbi, xd, tile, 2, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf2, dst_stride2);
          dec_extend_all(pbi, xd, tile, 3, subsize, top_bsize, mi_row, mi_col,
                         mi_row_top, mi_col_top, dst_buf3, dst_stride3);
        }
      } else {
912
913
914
        dec_predict_sb_complex(pbi, xd, tile, mi_row, mi_col, mi_row_top,
                               mi_col_top, subsize, top_bsize, dst_buf,
                               dst_stride);
915
916
917
918
919
920
921
922
923
924
925
926
927
        if (mi_row < cm->mi_rows && mi_col + hbs < cm->mi_cols)
          dec_predict_sb_complex(pbi, xd, tile, mi_row, mi_col + hbs,
                                 mi_row_top, mi_col_top, subsize, top_bsize,
                                 dst_buf1, dst_stride1);
        if (mi_row + hbs < cm->mi_rows && mi_col < cm->mi_cols)
          dec_predict_sb_complex(pbi, xd, tile, mi_row + hbs, mi_col,
                                 mi_row_top, mi_col_top, subsize, top_bsize,
                                 dst_buf2, dst_stride2);
        if (mi_row + hbs < cm->mi_rows && mi_col + hbs < cm->mi_cols)
          dec_predict_sb_complex(pbi, xd, tile, mi_row + hbs, mi_col + hbs,
                                 mi_row_top, mi_col_top, subsize, top_bsize,
                                 dst_buf3, dst_stride3);
      }
928
929
930
931
      for (i = 0; i < MAX_MB_PLANE; i++) {
        if (bsize == BLOCK_8X8 && i != 0)
          continue;  // Skip <4x4 chroma smoothing
        if (mi_row < cm->mi_rows && mi_col + hbs < cm->mi_cols) {
Yaowu Xu's avatar
Yaowu Xu committed
932
          av1_build_masked_inter_predictor_complex(
933
934
935
936
              xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
              mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
              PARTITION_VERT, i);
          if (mi_row + hbs < cm->mi_rows) {
Yaowu Xu's avatar
Yaowu Xu committed
937
            av1_build_masked_inter_predictor_complex(
938
939
940
                xd, dst_buf2[i], dst_stride2[i], dst_buf3[i], dst_stride3[i],
                mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
                PARTITION_VERT, i);
Yaowu Xu's avatar
Yaowu Xu committed
941
            av1_build_masked_inter_predictor_complex(
942
943
944
                xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i],
                mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
                PARTITION_HORZ, i);
945
          }
946
        } else if (mi_row + hbs < cm->mi_rows && mi_col < cm->mi_cols) {
Yaowu Xu's avatar
Yaowu Xu committed
947
          av1_build_masked_inter_predictor_complex(
948
949
950
              xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i],
              mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
              PARTITION_HORZ, i);
951
        }
952
      }
953
      break;
954
955
956
957
958
959
960
961
962
#if CONFIG_EXT_PARTITION_TYPES
    case PARTITION_HORZ_A:
      dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
                           mi_row_top, mi_col_top, dst_buf, dst_stride,
                           top_bsize, bsize2, 0, 0);
      dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col,
                     mi_row_top, mi_col_top, dst_buf, dst_stride);

      dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
963
964
                           mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
                           dst_stride1, top_bsize, bsize2, 0, 0);
965
966
967
      dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col + hbs,
                     mi_row_top, mi_col_top, dst_buf1, dst_stride1);

968
969
970
      dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col, mi_row + hbs,
                           mi_col, mi_row_top, mi_col_top, dst_buf2,
                           dst_stride2, top_bsize, subsize, 0, 0);
971
      if (bsize < top_bsize)
972
973
        dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
                       mi_col, mi_row_top, mi_col_top, dst_buf2, dst_stride2);
974
      else
975
976
977
        dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
                       mi_col, mi_row_top, mi_col_top, dst_buf2, dst_stride2,
                       1);
978
979
980
981

      for (i = 0; i < MAX_MB_PLANE; i++) {
        xd->plane[i].dst.buf = dst_buf[i];
        xd-><