decodeframe.c 172 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
Steinar Midtskogen's avatar
Steinar Midtskogen committed
32
#include "aom/aom_image.h"
33
#include "av1/common/clpf.h"
34
#endif
35
#include "av1/common/common.h"
Yaowu Xu's avatar
Yaowu Xu committed
36
#if CONFIG_DERING
37
#include "av1/common/dering.h"
Yaowu Xu's avatar
Yaowu Xu committed
38
#endif  // CONFIG_DERING
39
40
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
41
#include "av1/common/entropymv.h"
42
43
44
45
#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
46
#include "av1/common/reconintra.h"
47
#include "av1/common/seg_common.h"
Jingning Han's avatar
Jingning Han committed
48
#include "av1/common/thread_common.h"
49
#include "av1/common/tile_common.h"
50

51
52
53
#include "av1/decoder/decodeframe.h"
#include "av1/decoder/decodemv.h"
#include "av1/decoder/decoder.h"
Jingning Han's avatar
Jingning Han committed
54
#include "av1/decoder/detokenize.h"
55
#include "av1/decoder/dsubexp.h"
Jingning Han's avatar
Jingning Han committed
56

Yaowu Xu's avatar
Yaowu Xu committed
57
#define MAX_AV1_HEADER_SIZE 80
Michael Bebenita's avatar
Michael Bebenita committed
58
#define ACCT_STR __func__
Jingning Han's avatar
Jingning Han committed
59

60
61
62
63
64
65
66
67
68
69
#if CONFIG_PVQ
#include "av1/decoder/pvq_decoder.h"
#include "av1/encoder/encodemb.h"

#include "aom_dsp/entdec.h"
#include "av1/common/partition.h"
#include "av1/decoder/decint.h"
#include "av1/encoder/hybrid_fwd_txfm.h"
#endif

70
71
72
73
74
75
76
77
static struct aom_read_bit_buffer *init_read_bit_buffer(
    AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
    const uint8_t *data_end, uint8_t clear_data[MAX_AV1_HEADER_SIZE]);
static int read_compressed_header(AV1Decoder *pbi, const uint8_t *data,
                                  size_t partition_size);
static size_t read_uncompressed_header(AV1Decoder *pbi,
                                       struct aom_read_bit_buffer *rb);

Yaowu Xu's avatar
Yaowu Xu committed
78
static int is_compound_reference_allowed(const AV1_COMMON *cm) {
Jingning Han's avatar
Jingning Han committed
79
  int i;
80
  if (frame_is_intra_only(cm)) return 0;
81
  for (i = 1; i < INTER_REFS_PER_FRAME; ++i)
82
    if (cm->ref_frame_sign_bias[i + 1] != cm->ref_frame_sign_bias[1]) return 1;
Jingning Han's avatar
Jingning Han committed
83
84
85
86

  return 0;
}

Yaowu Xu's avatar
Yaowu Xu committed
87
static void setup_compound_reference_mode(AV1_COMMON *cm) {
88
#if CONFIG_EXT_REFS
89
  cm->comp_fwd_ref[0] = LAST_FRAME;
90
91
92
93
  cm->comp_fwd_ref[1] = LAST2_FRAME;
  cm->comp_fwd_ref[2] = LAST3_FRAME;
  cm->comp_fwd_ref[3] = GOLDEN_FRAME;

94
95
  cm->comp_bwd_ref[0] = BWDREF_FRAME;
  cm->comp_bwd_ref[1] = ALTREF_FRAME;
96
#else
Jingning Han's avatar
Jingning Han committed
97
  if (cm->ref_frame_sign_bias[LAST_FRAME] ==
98
      cm->ref_frame_sign_bias[GOLDEN_FRAME]) {
Jingning Han's avatar
Jingning Han committed
99
100
101
102
    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] ==
103
             cm->ref_frame_sign_bias[ALTREF_FRAME]) {
Jingning Han's avatar
Jingning Han committed
104
105
106
107
108
109
110
111
    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;
  }
112
#endif  // CONFIG_EXT_REFS
Jingning Han's avatar
Jingning Han committed
113
114
115
116
117
118
}

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
119
120
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
121
122
123
  return data > max ? max : data;
}

Yaowu Xu's avatar
Yaowu Xu committed
124
static TX_MODE read_tx_mode(struct aom_read_bit_buffer *rb) {
125
126
127
128
129
130
#if CONFIG_TX64X64
  TX_MODE tx_mode =
      aom_rb_read_bit(rb) ? TX_MODE_SELECT : aom_rb_read_literal(rb, 2);
  if (tx_mode == ALLOW_32X32) tx_mode += aom_rb_read_bit(rb);
  return tx_mode;
#else
Yaowu Xu's avatar
Yaowu Xu committed
131
  return aom_rb_read_bit(rb) ? TX_MODE_SELECT : aom_rb_read_literal(rb, 2);
132
#endif  // CONFIG_TX64X64
133
}
Jingning Han's avatar
Jingning Han committed
134

Yaowu Xu's avatar
Yaowu Xu committed
135
136
137
138
139
140
141
142
static void read_tx_size_probs(FRAME_CONTEXT *fc, aom_reader *r) {
  int i, j, k;
  for (i = 0; i < MAX_TX_DEPTH; ++i)
    for (j = 0; j < TX_SIZE_CONTEXTS; ++j)
      for (k = 0; k < i + 1; ++k)
        av1_diff_update_prob(r, &fc->tx_size_probs[i][j][k], ACCT_STR);
}

143
#if !CONFIG_EC_ADAPT
Yaowu Xu's avatar
Yaowu Xu committed
144
static void read_switchable_interp_probs(FRAME_CONTEXT *fc, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
145
  int i, j;
146
  for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) {
Jingning Han's avatar
Jingning Han committed
147
    for (i = 0; i < SWITCHABLE_FILTERS - 1; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
148
      av1_diff_update_prob(r, &fc->switchable_interp_prob[j][i], ACCT_STR);
149
  }
Jingning Han's avatar
Jingning Han committed
150
}
151
#endif
Jingning Han's avatar
Jingning Han committed
152

Yaowu Xu's avatar
Yaowu Xu committed
153
static void read_inter_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
154
#if CONFIG_REF_MV
155
  int i;
156
  for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
157
    av1_diff_update_prob(r, &fc->newmv_prob[i], ACCT_STR);
158
  for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
159
    av1_diff_update_prob(r, &fc->zeromv_prob[i], ACCT_STR);
160
  for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
161
    av1_diff_update_prob(r, &fc->refmv_prob[i], ACCT_STR);
162
  for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
163
    av1_diff_update_prob(r, &fc->drl_prob[i], ACCT_STR);
Yue Chen's avatar
Yue Chen committed
164
#if CONFIG_EXT_INTER
Michael Bebenita's avatar
Michael Bebenita committed
165
  av1_diff_update_prob(r, &fc->new2mv_prob, ACCT_STR);
Yue Chen's avatar
Yue Chen committed
166
#endif  // CONFIG_EXT_INTER
167
#else
168
#if !CONFIG_EC_ADAPT
169
  int i, j;
170
  for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
Jingning Han's avatar
Jingning Han committed
171
    for (j = 0; j < INTER_MODES - 1; ++j)
Michael Bebenita's avatar
Michael Bebenita committed
172
      av1_diff_update_prob(r, &fc->inter_mode_probs[i][j], ACCT_STR);
173
  }
174
175
176
#else
  (void)fc;
  (void)r;
177
#endif
178
#endif
Jingning Han's avatar
Jingning Han committed
179
180
}

181
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
182
static void read_inter_compound_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
183
  int i, j;
Michael Bebenita's avatar
Michael Bebenita committed
184
  if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
185
186
    for (j = 0; j < INTER_MODE_CONTEXTS; ++j) {
      for (i = 0; i < INTER_COMPOUND_MODES - 1; ++i) {
Michael Bebenita's avatar
Michael Bebenita committed
187
        av1_diff_update_prob(r, &fc->inter_compound_mode_probs[j][i], ACCT_STR);
188
189
190
191
192
      }
    }
  }
}
#endif  // CONFIG_EXT_INTER
193
#if !CONFIG_EC_ADAPT
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
#if !CONFIG_EXT_TX
static void read_ext_tx_probs(FRAME_CONTEXT *fc, aom_reader *r) {
  int i, j, k;
  if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
      for (j = 0; j < TX_TYPES; ++j) {
        for (k = 0; k < TX_TYPES - 1; ++k)
          av1_diff_update_prob(r, &fc->intra_ext_tx_prob[i][j][k], ACCT_STR);
      }
    }
  }
  if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
    for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
      for (k = 0; k < TX_TYPES - 1; ++k)
        av1_diff_update_prob(r, &fc->inter_ext_tx_prob[i][k], ACCT_STR);
    }
  }
}
#endif
#endif
214

215
static REFERENCE_MODE read_frame_reference_mode(
Yaowu Xu's avatar
Yaowu Xu committed
216
    const AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
217
  if (is_compound_reference_allowed(cm)) {
Yaowu Xu's avatar
Yaowu Xu committed
218
    return aom_rb_read_bit(rb)
219
               ? REFERENCE_MODE_SELECT
Yaowu Xu's avatar
Yaowu Xu committed
220
               : (aom_rb_read_bit(rb) ? COMPOUND_REFERENCE : SINGLE_REFERENCE);
221
222
223
224
  } else {
    return SINGLE_REFERENCE;
  }
}
Jingning Han's avatar
Jingning Han committed
225

Yaowu Xu's avatar
Yaowu Xu committed
226
static void read_frame_reference_mode_probs(AV1_COMMON *cm, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
227
  FRAME_CONTEXT *const fc = cm->fc;
228
  int i, j;
Jingning Han's avatar
Jingning Han committed
229
230
231

  if (cm->reference_mode == REFERENCE_MODE_SELECT)
    for (i = 0; i < COMP_INTER_CONTEXTS; ++i)
Michael Bebenita's avatar
Michael Bebenita committed
232
      av1_diff_update_prob(r, &fc->comp_inter_prob[i], ACCT_STR);
Jingning Han's avatar
Jingning Han committed
233

234
  if (cm->reference_mode != COMPOUND_REFERENCE) {
Jingning Han's avatar
Jingning Han committed
235
    for (i = 0; i < REF_CONTEXTS; ++i) {
236
      for (j = 0; j < (SINGLE_REFS - 1); ++j) {
Michael Bebenita's avatar
Michael Bebenita committed
237
        av1_diff_update_prob(r, &fc->single_ref_prob[i][j], ACCT_STR);
238
      }
Jingning Han's avatar
Jingning Han committed
239
    }
240
  }
Jingning Han's avatar
Jingning Han committed
241

242
243
  if (cm->reference_mode != SINGLE_REFERENCE) {
    for (i = 0; i < REF_CONTEXTS; ++i) {
244
#if CONFIG_EXT_REFS
245
      for (j = 0; j < (FWD_REFS - 1); ++j)
Michael Bebenita's avatar
Michael Bebenita committed
246
        av1_diff_update_prob(r, &fc->comp_ref_prob[i][j], ACCT_STR);
247
      for (j = 0; j < (BWD_REFS - 1); ++j)
Michael Bebenita's avatar
Michael Bebenita committed
248
        av1_diff_update_prob(r, &fc->comp_bwdref_prob[i][j], ACCT_STR);
249
250
#else
      for (j = 0; j < (COMP_REFS - 1); ++j)
Michael Bebenita's avatar
Michael Bebenita committed
251
        av1_diff_update_prob(r, &fc->comp_ref_prob[i][j], ACCT_STR);
252
#endif  // CONFIG_EXT_REFS
253
254
    }
  }
Jingning Han's avatar
Jingning Han committed
255
256
}

Yaowu Xu's avatar
Yaowu Xu committed
257
static void update_mv_probs(aom_prob *p, int n, aom_reader *r) {
Jingning Han's avatar
Jingning Han committed
258
  int i;
Michael Bebenita's avatar
Michael Bebenita committed
259
  for (i = 0; i < n; ++i) av1_diff_update_prob(r, &p[i], ACCT_STR);
Jingning Han's avatar
Jingning Han committed
260
261
}

Yaowu Xu's avatar
Yaowu Xu committed
262
static void read_mv_probs(nmv_context *ctx, int allow_hp, aom_reader *r) {
263
  int i;
Jingning Han's avatar
Jingning Han committed
264

Yaowu Xu's avatar
Yaowu Xu committed
265
#if !CONFIG_EC_ADAPT
266
  int j;
Jingning Han's avatar
Jingning Han committed
267
268
269
270
271
272
273
274
275
276
277
  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];
278
    for (j = 0; j < CLASS0_SIZE; ++j) {
Jingning Han's avatar
Jingning Han committed
279
      update_mv_probs(comp_ctx->class0_fp[j], MV_FP_SIZE - 1, r);
280
    }
281
    update_mv_probs(comp_ctx->fp, MV_FP_SIZE - 1, r);
Jingning Han's avatar
Jingning Han committed
282
  }
283
#endif  // !CONFIG_EC_ADAPT
Jingning Han's avatar
Jingning Han committed
284
285
286
287
288
289
290
291
292
293

  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);
    }
  }
}

294
static void inverse_transform_block(MACROBLOCKD *xd, int plane,
295
                                    const TX_TYPE tx_type,
296
                                    const TX_SIZE tx_size, uint8_t *dst,
297
                                    int stride, int16_t scan_line, int eob) {
Jingning Han's avatar
Jingning Han committed
298
  struct macroblockd_plane *const pd = &xd->plane[plane];
299
300
301
302
303
304
  tran_low_t *const dqcoeff = pd->dqcoeff;
  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;
  inv_txfm_param.lossless = xd->lossless[xd->mi[0]->mbmi.segment_id];
Angie Chiang's avatar
Angie Chiang committed
305

Yaowu Xu's avatar
Yaowu Xu committed
306
#if CONFIG_AOM_HIGHBITDEPTH
307
308
309
310
  if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
    inv_txfm_param.bd = xd->bd;
    highbd_inv_txfm_add(dqcoeff, dst, stride, &inv_txfm_param);
  } else {
Yaowu Xu's avatar
Yaowu Xu committed
311
#endif  // CONFIG_AOM_HIGHBITDEPTH
312
    inv_txfm_add(dqcoeff, dst, stride, &inv_txfm_param);
Yaowu Xu's avatar
Yaowu Xu committed
313
#if CONFIG_AOM_HIGHBITDEPTH
Jingning Han's avatar
Jingning Han committed
314
  }
315
316
#endif  // CONFIG_AOM_HIGHBITDEPTH
  memset(dqcoeff, 0, (scan_line + 1) * sizeof(dqcoeff[0]));
Jingning Han's avatar
Jingning Han committed
317
318
}

319
320
321
322
323
324
325
326
327
#if CONFIG_PVQ
static int av1_pvq_decode_helper(od_dec_ctx *dec, int16_t *ref_coeff,
                                 int16_t *dqcoeff, int16_t *quant, int pli,
                                 int bs, TX_TYPE tx_type, int xdec,
                                 int ac_dc_coded) {
  unsigned int flags;  // used for daala's stream analyzer.
  int off;
  const int is_keyframe = 0;
  const int has_dc_skip = 1;
328
  int quant_shift = get_tx_scale(bs);
329
330
331
332
333
334
335
336
337
338
  // DC quantizer for PVQ
  int pvq_dc_quant;
  int lossless = (quant[0] == 0);
  const int blk_size = tx_size_wide[bs];
  int eob = 0;
  int i;
  // TODO(yushin) : To enable activity masking,
  // int use_activity_masking = dec->use_activity_masking;
  int use_activity_masking = 0;

339
340
  DECLARE_ALIGNED(16, int16_t, dqcoeff_pvq[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
  DECLARE_ALIGNED(16, int16_t, ref_coeff_pvq[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
341

342
343
  od_coeff ref_int32[OD_TXSIZE_MAX * OD_TXSIZE_MAX];
  od_coeff out_int32[OD_TXSIZE_MAX * OD_TXSIZE_MAX];
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364

  od_raster_to_coding_order(ref_coeff_pvq, blk_size, tx_type, ref_coeff,
                            blk_size);

  if (lossless)
    pvq_dc_quant = 1;
  else {
    // TODO(yushin): Enable this for activity masking,
    // when pvq_qm_q4 is available in AOM.
    // pvq_dc_quant = OD_MAXI(1, quant*
    // dec->state.pvq_qm_q4[pli][od_qm_get_index(bs, 0)] >> 4);
    pvq_dc_quant = OD_MAXI(1, quant[0] >> quant_shift);
  }

  off = od_qm_offset(bs, xdec);

  // copy int16 inputs to int32
  for (i = 0; i < blk_size * blk_size; i++) ref_int32[i] = ref_coeff_pvq[i];

  od_pvq_decode(dec, ref_int32, out_int32, (int)quant[1] >> quant_shift, pli,
                bs, OD_PVQ_BETA[use_activity_masking][pli][bs],
365
366
                OD_ROBUST_STREAM, is_keyframe, &flags, ac_dc_coded,
                dec->state.qm + off, dec->state.qm_inv + off);
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387

  // copy int32 result back to int16
  for (i = 0; i < blk_size * blk_size; i++) dqcoeff_pvq[i] = out_int32[i];

  if (!has_dc_skip || dqcoeff_pvq[0]) {
    dqcoeff_pvq[0] =
        has_dc_skip + generic_decode(dec->ec, &dec->state.adapt.model_dc[pli],
                                     -1, &dec->state.adapt.ex_dc[pli][bs][0], 2,
                                     "dc:mag");
    if (dqcoeff_pvq[0])
      dqcoeff_pvq[0] *= od_ec_dec_bits(dec->ec, 1, "dc:sign") ? -1 : 1;
  }
  dqcoeff_pvq[0] = dqcoeff_pvq[0] * pvq_dc_quant + ref_coeff_pvq[0];

  od_coding_order_to_raster(dqcoeff, blk_size, tx_type, dqcoeff_pvq, blk_size);

  eob = blk_size * blk_size;

  return eob;
}

388
389
390
static int av1_pvq_decode_helper2(MACROBLOCKD *const xd,
                                  MB_MODE_INFO *const mbmi, int plane, int row,
                                  int col, TX_SIZE tx_size, TX_TYPE tx_type) {
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
  struct macroblockd_plane *const pd = &xd->plane[plane];
  // transform block size in pixels
  int tx_blk_size = tx_size_wide[tx_size];
  int i, j;
  tran_low_t *pvq_ref_coeff = pd->pvq_ref_coeff;
  const int diff_stride = tx_blk_size;
  int16_t *pred = pd->pred;
  tran_low_t *const dqcoeff = pd->dqcoeff;
  int ac_dc_coded;  // bit0: DC coded, bit1 : AC coded
  uint8_t *dst;
  int eob;

  eob = 0;
  dst = &pd->dst.buf[4 * row * pd->dst.stride + 4 * col];

  // decode ac/dc coded flag. bit0: DC coded, bit1 : AC coded
  // NOTE : we don't use 5 symbols for luma here in aom codebase,
  // since block partition is taken care of by aom.
  // So, only AC/DC skip info is coded
  ac_dc_coded = od_decode_cdf_adapt(
      xd->daala_dec.ec,
      xd->daala_dec.state.adapt.skip_cdf[2 * tx_size + (plane != 0)], 4,
      xd->daala_dec.state.adapt.skip_increment, "skip");

  if (ac_dc_coded) {
    int xdec = pd->subsampling_x;
    int seg_id = mbmi->segment_id;
    int16_t *quant;
    FWD_TXFM_PARAM fwd_txfm_param;
420
421
    // ToDo(yaowu): correct this with optimal number from decoding process.
    const int max_scan_line = tx_size_2d[tx_size];
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446

    for (j = 0; j < tx_blk_size; j++)
      for (i = 0; i < tx_blk_size; i++) {
        pred[diff_stride * j + i] = dst[pd->dst.stride * j + i];
      }

    fwd_txfm_param.tx_type = tx_type;
    fwd_txfm_param.tx_size = tx_size;
    fwd_txfm_param.fwd_txfm_opt = FWD_TXFM_OPT_NORMAL;
    fwd_txfm_param.rd_transform = 0;
    fwd_txfm_param.lossless = xd->lossless[seg_id];

    fwd_txfm(pred, pvq_ref_coeff, diff_stride, &fwd_txfm_param);

    quant = &pd->seg_dequant[seg_id][0];  // aom's quantizer

    eob = av1_pvq_decode_helper(&xd->daala_dec, pvq_ref_coeff, dqcoeff, quant,
                                plane, tx_size, tx_type, xdec, ac_dc_coded);

    // Since av1 does not have separate inverse transform
    // but also contains adding to predicted image,
    // pass blank dummy image to av1_inv_txfm_add_*x*(), i.e. set dst as zeros
    for (j = 0; j < tx_blk_size; j++)
      for (i = 0; i < tx_blk_size; i++) dst[j * pd->dst.stride + i] = 0;

447
448
    inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
                            max_scan_line, eob);
449
450
451
452
453
454
  }

  return eob;
}
#endif

Angie Chiang's avatar
Angie Chiang committed
455
456
static void predict_and_reconstruct_intra_block(AV1_COMMON *cm,
                                                MACROBLOCKD *const xd,
Alex Converse's avatar
Alex Converse committed
457
458
459
#if CONFIG_ANS
                                                struct AnsDecoder *const r,
#else
Yaowu Xu's avatar
Yaowu Xu committed
460
                                                aom_reader *r,
Alex Converse's avatar
Alex Converse committed
461
#endif  // CONFIG_ANS
Jingning Han's avatar
Jingning Han committed
462
                                                MB_MODE_INFO *const mbmi,
463
                                                int plane, int row, int col,
Jingning Han's avatar
Jingning Han committed
464
465
466
                                                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
467
  PLANE_TYPE plane_type = (plane == 0) ? PLANE_TYPE_Y : PLANE_TYPE_UV;
Jingning Han's avatar
Jingning Han committed
468
  uint8_t *dst;
hui su's avatar
hui su committed
469
  int block_idx = (row << 1) + col;
470
471
472
473
#if CONFIG_PVQ
  (void)cm;
  (void)r;
#endif
Jingning Han's avatar
Jingning Han committed
474
475
476
  dst = &pd->dst.buf[4 * row * pd->dst.stride + 4 * col];

  if (mbmi->sb_type < BLOCK_8X8)
477
    if (plane == 0) mode = xd->mi[0]->bmi[(row << 1) + col].as_mode;
Jingning Han's avatar
Jingning Han committed
478

479
  av1_predict_intra_block(xd, pd->width, pd->height, tx_size, mode, dst,
Yaowu Xu's avatar
Yaowu Xu committed
480
                          pd->dst.stride, dst, pd->dst.stride, col, row, plane);
Jingning Han's avatar
Jingning Han committed
481
482

  if (!mbmi->skip) {
hui su's avatar
hui su committed
483
    TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
484
#if !CONFIG_PVQ
Angie Chiang's avatar
Angie Chiang committed
485
    const SCAN_ORDER *scan_order = get_scan(cm, tx_size, tx_type, 0);
486
487
488
489
    int16_t max_scan_line = 0;
    const int eob =
        av1_decode_block_tokens(xd, plane, scan_order, col, row, tx_size,
                                tx_type, &max_scan_line, r, mbmi->segment_id);
Angie Chiang's avatar
Angie Chiang committed
490
491
492
#if CONFIG_ADAPT_SCAN
    av1_update_scan_count_facade(cm, tx_size, tx_type, pd->dqcoeff, eob);
#endif
493
494
495
    if (eob)
      inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
                              max_scan_line, eob);
496
497
498
#else
    av1_pvq_decode_helper2(xd, mbmi, plane, row, col, tx_size, tx_type);
#endif
Jingning Han's avatar
Jingning Han committed
499
500
501
  }
}

502
#if CONFIG_VAR_TX
Angie Chiang's avatar
Angie Chiang committed
503
504
static void decode_reconstruct_tx(AV1_COMMON *cm, MACROBLOCKD *const xd,
                                  aom_reader *r, MB_MODE_INFO *const mbmi,
505
                                  int plane, BLOCK_SIZE plane_bsize,
506
507
                                  int blk_row, int blk_col, TX_SIZE tx_size,
                                  int *eob_total) {
508
  const struct macroblockd_plane *const pd = &xd->plane[plane];
509
  const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
510
511
  const int tx_row = blk_row >> (1 - pd->subsampling_y);
  const int tx_col = blk_col >> (1 - pd->subsampling_x);
512
  const TX_SIZE plane_tx_size =
513
      plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0]
514
            : mbmi->inter_tx_size[tx_row][tx_col];
515
  // Scale to match transform block unit.
516
517
  const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
  const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
518

519
  if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
520

521
  if (tx_size == plane_tx_size) {
522
    PLANE_TYPE plane_type = (plane == 0) ? PLANE_TYPE_Y : PLANE_TYPE_UV;
523
524
    int block_idx = (blk_row << 1) + blk_col;
    TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, plane_tx_size);
Angie Chiang's avatar
Angie Chiang committed
525
    const SCAN_ORDER *sc = get_scan(cm, plane_tx_size, tx_type, 1);
526
    int16_t max_scan_line = 0;
527
    const int eob =
Yaowu Xu's avatar
Yaowu Xu committed
528
        av1_decode_block_tokens(xd, plane, sc, blk_col, blk_row, plane_tx_size,
529
                                tx_type, &max_scan_line, r, mbmi->segment_id);
530
531
    inverse_transform_block(
        xd, plane, tx_type, plane_tx_size,
532
        &pd->dst.buf[4 * blk_row * pd->dst.stride + 4 * blk_col],
533
        pd->dst.stride, max_scan_line, eob);
534
535
    *eob_total += eob;
  } else {
536
537
    const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
    const int bsl = tx_size_wide_unit[sub_txs];
538
539
540
541
542
    int i;

    assert(bsl > 0);

    for (i = 0; i < 4; ++i) {
543
544
      const int offsetr = blk_row + (i >> 1) * bsl;
      const int offsetc = blk_col + (i & 0x01) * bsl;
545

546
      if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
547

548
      decode_reconstruct_tx(cm, xd, r, mbmi, plane, plane_bsize, offsetr,
549
                            offsetc, sub_txs, eob_total);
550
551
552
    }
  }
}
553
#endif  // CONFIG_VAR_TX
554

555
#if !CONFIG_VAR_TX || CONFIG_SUPERTX || (CONFIG_EXT_TX && CONFIG_RECT_TX)
Angie Chiang's avatar
Angie Chiang committed
556
static int reconstruct_inter_block(AV1_COMMON *cm, MACROBLOCKD *const xd,
Alex Converse's avatar
Alex Converse committed
557
558
559
#if CONFIG_ANS
                                   struct AnsDecoder *const r,
#else
Yaowu Xu's avatar
Yaowu Xu committed
560
                                   aom_reader *r,
Alex Converse's avatar
Alex Converse committed
561
#endif
562
563
                                   int segment_id, int plane, int row, int col,
                                   TX_SIZE tx_size) {
hui su's avatar
hui su committed
564
565
  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
566
  TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
567
568
569
570
#if CONFIG_PVQ
  int eob;
  (void)cm;
  (void)r;
571
572
573
  (void)segment_id;
#else
  struct macroblockd_plane *const pd = &xd->plane[plane];
574
575
576
#endif

#if !CONFIG_PVQ
Angie Chiang's avatar
Angie Chiang committed
577
  const SCAN_ORDER *scan_order = get_scan(cm, tx_size, tx_type, 1);
578
579
580
581
  int16_t max_scan_line = 0;
  const int eob =
      av1_decode_block_tokens(xd, plane, scan_order, col, row, tx_size, tx_type,
                              &max_scan_line, r, segment_id);
Angie Chiang's avatar
Angie Chiang committed
582
583
584
#if CONFIG_ADAPT_SCAN
  av1_update_scan_count_facade(cm, tx_size, tx_type, pd->dqcoeff, eob);
#endif
585
586
587
588
  if (eob)
    inverse_transform_block(xd, plane, tx_type, tx_size,
                            &pd->dst.buf[4 * row * pd->dst.stride + 4 * col],
                            pd->dst.stride, max_scan_line, eob);
589
#else
590
591
  eob = av1_pvq_decode_helper2(xd, &xd->mi[0]->mbmi, plane, row, col, tx_size,
                               tx_type);
592
#endif
Jingning Han's avatar
Jingning Han committed
593
594
  return eob;
}
595
#endif  // !CONFIG_VAR_TX || CONFIG_SUPER_TX
Jingning Han's avatar
Jingning Han committed
596
597
598
599
600
601
602
603
604
605

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);
  }
}

Yaowu Xu's avatar
Yaowu Xu committed
606
static MB_MODE_INFO *set_offsets(AV1_COMMON *const cm, MACROBLOCKD *const xd,
Jingning Han's avatar
Jingning Han committed
607
                                 BLOCK_SIZE bsize, int mi_row, int mi_col,
608
609
                                 int bw, int bh, int x_mis, int y_mis, int bwl,
                                 int bhl) {
Jingning Han's avatar
Jingning Han committed
610
611
612
613
614
615
616
617
618
  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;
619
620
621
622
#if CONFIG_RD_DEBUG
  xd->mi[0]->mbmi.mi_row = mi_row;
  xd->mi[0]->mbmi.mi_col = mi_col;
#endif
Jingning Han's avatar
Jingning Han committed
623
  for (y = 0; y < y_mis; ++y)
Jingning Han's avatar
Jingning Han committed
624
    for (x = !y; x < x_mis; ++x) xd->mi[y * cm->mi_stride + x] = xd->mi[0];
Jingning Han's avatar
Jingning Han committed
625
626
627
628

  set_plane_n4(xd, bw, bh, bwl, bhl);
  set_skip_context(xd, mi_row, mi_col);

629
630
631
632
#if CONFIG_VAR_TX
  xd->max_tx_size = max_txsize_lookup[bsize];
#endif

Jingning Han's avatar
Jingning Han committed
633
634
635
636
  // 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
637
  av1_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
Jingning Han's avatar
Jingning Han committed
638
639
640
  return &xd->mi[0]->mbmi;
}

641
#if CONFIG_SUPERTX
Yaowu Xu's avatar
Yaowu Xu committed
642
static MB_MODE_INFO *set_offsets_extend(AV1_COMMON *const cm,
643
644
                                        MACROBLOCKD *const xd,
                                        const TileInfo *const tile,
645
646
647
                                        BLOCK_SIZE bsize_pred, int mi_row_pred,
                                        int mi_col_pred, int mi_row_ori,
                                        int mi_col_ori) {
648
649
650
651
652
653
654
655
656
657
  // 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;
658
659
  set_mi_row_col(xd, tile, mi_row_pred, bh, mi_col_pred, bw, cm->mi_rows,
                 cm->mi_cols);
660

661
662
  xd->up_available = (mi_row_ori > tile->mi_row_start);
  xd->left_available = (mi_col_ori > tile->mi_col_start);
663
664
665
666
667
668

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

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

Yaowu Xu's avatar
Yaowu Xu committed
669
670
671
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) {
672
673
674
675
676
677
678
679
  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)
680
    for (x = !y; x < x_mis; ++x) xd->mi[y * cm->mi_stride + x] = xd->mi[0];
681
682
683
684
685

  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
686
static void set_offsets_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
687
688
                                 const TileInfo *const tile, BLOCK_SIZE bsize,
                                 int mi_row, int mi_col) {
689
690
691
692
693
694
695
696
697
698
699
700
701
  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
702
  av1_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
703
704
}

Yaowu Xu's avatar
Yaowu Xu committed
705
static void set_param_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
706
                               BLOCK_SIZE bsize, int mi_row, int mi_col,
707
                               int txfm, int skip) {
708
709
  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
710
711
  const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col);
  const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row);
712
713
714
715
716
717
718
719
720
721
722
  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;
    }
723
724
#if CONFIG_VAR_TX
  xd->above_txfm_context = cm->above_txfm_context + mi_col;
725
  xd->left_txfm_context =
726
      xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
727
  set_txfm_ctxs(xd->mi[0]->mbmi.tx_size, bw, bh, skip, xd);
728
#endif
729
730
}

Yaowu Xu's avatar
Yaowu Xu committed
731
static void set_ref(AV1_COMMON *const cm, MACROBLOCKD *const xd, int idx,
732
                    int mi_row, int mi_col) {
733
734
735
  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
736
737
  if (!av1_is_valid_scale(&ref_buffer->sf))
    aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
738
                       "Invalid scale factors");
Yaowu Xu's avatar
Yaowu Xu committed
739
740
  av1_setup_pre_planes(xd, idx, ref_buffer->buf, mi_row, mi_col,
                       &ref_buffer->sf);
741
742
743
744
  xd->corrupted |= ref_buffer->buf->corrupted;
}

static void dec_predict_b_extend(
Yaowu Xu's avatar
Yaowu Xu committed
745
    AV1Decoder *const pbi, MACROBLOCKD *const xd, const TileInfo *const tile,
746
747
748
    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) {
749
750
751
752
753
754
755
756
757
758
759
760
  // 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
761
  AV1_COMMON *const cm = &pbi->common;
762
763
764

  if (mi_row_pred < mi_row_top || mi_col_pred < mi_col_top ||
      mi_row_pred >= mi_row_top + mi_height_top ||
765
766
      mi_col_pred >= mi_col_top + mi_width_top || mi_row_pred >= cm->mi_rows ||
      mi_col_pred >= cm->mi_cols)
767
768
    return;

769
  mbmi = set_offsets_extend(cm, xd, tile, bsize_pred, mi_row_pred, mi_col_pred,
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
                            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
793
    av1_build_inter_predictors_sb_extend(xd,
794
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
795
                                         mi_row_ori, mi_col_ori,
796
#endif  // CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
797
                                         mi_row_pred, mi_col_pred, bsize_pred);
798
  else
Yaowu Xu's avatar
Yaowu Xu committed
799
    av1_build_inter_predictors_sb_sub8x8_extend(xd,
800
#if CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
801
                                                mi_row_ori, mi_col_ori,
802
#endif  // CONFIG_EXT_INTER
Yaowu Xu's avatar
Yaowu Xu committed
803
804
                                                mi_row_pred, mi_col_pred,
                                                bsize_pred, block);
805
806
}

Yaowu Xu's avatar
Yaowu Xu committed
807
static void dec_extend_dir(AV1Decoder *const pbi, MACROBLOCKD *const xd,
808
                           const TileInfo *const tile, int block,
809
810
811
                           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) {
812
813
814
815
816
817
818
819
820
821
822
  // 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) {
823
824
825
    extend_bsize = (mi_width == 1 || bsize < BLOCK_8X8 || xss < yss)
                       ? BLOCK_8X8
                       : BLOCK_16X8;
826
827
828
829
    unit = num_8x8_blocks_wide_lookup[extend_bsize];
    mi_row_pred = mi_row + ((dir == 0) ? mi_height : -1);
    mi_col_pred = mi_col;

830
831
832
    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);
833
834
835
836

    if (mi_width > unit) {
      int i;
      assert(!b_sub8x8);
837
      for (i = 0; i < mi_width / unit - 1; i++) {
838
        mi_col_pred += unit;
839
840
841
        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);
842
843
844
      }
    }
  } else if (dir == 2 || dir == 3) {
845
846
847
    extend_bsize = (mi_height == 1 || bsize < BLOCK_8X8 || yss < xss)
                       ? BLOCK_8X8
                       : BLOCK_8X16;
848
849
850
851
    unit = num_8x8_blocks_high_lookup[extend_bsize];
    mi_row_pred = mi_row;
    mi_col_pred = mi_col + ((dir == 3) ? mi_width : -1);

852
853
854
    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);
855
856
857

    if (mi_height > unit) {
      int i;
858
      for (i = 0; i < mi_height / unit - 1; i++) {
859
        mi_row_pred += unit;
860
861
862
        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);
863
864
865
866
867
868
      }
    }
  } 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);
869
870
871
    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);
872
873
874
  }
}

Yaowu Xu's avatar
Yaowu Xu committed
875
static void dec_extend_all(AV1Decoder *const pbi, MACROBLOCKD *const xd,
876
                           const TileInfo *const tile, int block,
877
878
879
                           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]) {
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
  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
898
static void dec_predict_sb_complex(AV1Decoder *const pbi, MACROBLOCKD *const xd,
899
900
                                   const TileInfo *const tile, int mi_row,
                                   int mi_col, int mi_row_top, int mi_col_top,
901
902
                                   BLOCK_SIZE bsize, BLOCK_SIZE top_bsize,
                                   uint8_t *dst_buf[3], int dst_stride[3]) {
Yaowu Xu's avatar
Yaowu Xu committed
903
  const AV1_COMMON *const cm = &pbi->common;
904
905
906
  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);
907
#if CONFIG_EXT_PARTITION_TYPES
908
  const BLOCK_SIZE bsize2 = get_subsize(bsize, PARTITION_SPLIT);
909
#endif
910
911
  int i;
  const int mi_offset = mi_row * cm->mi_stride + mi_col;
912
913
  uint8_t *dst_buf1[3], *dst_buf2[3], *dst_buf3[3];

914
915
916
917
918
919
  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 };
920

Yaowu Xu's avatar
Yaowu Xu committed
921
#if CONFIG_AOM_HIGHBITDEPTH
922
923
924
  if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
    int len = sizeof(uint16_t);
    dst_buf1[0] = CONVERT_TO_BYTEPTR(tmp_buf1);
925
926
    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);
927
    dst_buf2[0] = CONVERT_TO_BYTEPTR(tmp_buf2);
928
929
    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);
930
    dst_buf3[0] = CONVERT_TO_BYTEPTR(tmp_buf3);
931
932
    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);
933
934
935
  } else {
#endif
    dst_buf1[0] = tmp_buf1;
936
937
    dst_buf1[1] = tmp_buf1 + MAX_TX_SQUARE;
    dst_buf1[2] = tmp_buf1 + 2 * MAX_TX_SQUARE;
938
    dst_buf2[0] = tmp_buf2;
939
940
    dst_buf2[1] = tmp_buf2 + MAX_TX_SQUARE;
    dst_buf2[2] = tmp_buf2 + 2 * MAX_TX_SQUARE;
941
    dst_buf3[0] = tmp_buf3;
942
943
    dst_buf3[1] = tmp_buf3 + MAX_TX_SQUARE;
    dst_buf3[2] = tmp_buf3 + 2 * MAX_TX_SQUARE;
Yaowu Xu's avatar
Yaowu Xu committed
944
#if CONFIG_AOM_HIGHBITDEPTH
945
946
947
  }
#endif

948
  if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return;
949

950
951
  xd->mi = cm->mi_grid_visible + mi_offset;
  xd->mi[0] = cm->mi + mi_offset;
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988

  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
989
        av1_build_masked_inter_predictor_complex(
990
991
992
            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);