vp9_decodframe.c 63.1 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
7
 *  in the file PATENTS.  All contributing project authors may
8
 *  be found in the AUTHORS file in the root of the source tree.
John Koleszar's avatar
John Koleszar committed
9
10
11
 */


12
#include "vp9/decoder/vp9_onyxd_int.h"
Ronald S. Bultje's avatar
Ronald S. Bultje committed
13
#include "vp9/common/vp9_common.h"
14
15
16
#include "vp9/common/vp9_header.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_reconinter.h"
Yaowu Xu's avatar
Yaowu Xu committed
17
#include "vp9/common/vp9_entropy.h"
18
#include "vp9/decoder/vp9_decodframe.h"
19
#include "vp9/decoder/vp9_detokenize.h"
20
21
22
23
#include "vp9/common/vp9_invtrans.h"
#include "vp9/common/vp9_alloccommon.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_quant_common.h"
Johann's avatar
Johann committed
24
#include "vpx_scale/vpx_scale.h"
25
#include "vp9/common/vp9_setupintrarecon.h"
Scott LaVarnway's avatar
Scott LaVarnway committed
26

27
#include "vp9/decoder/vp9_decodemv.h"
28
29
#include "vp9/common/vp9_extend.h"
#include "vp9/common/vp9_modecont.h"
John Koleszar's avatar
John Koleszar committed
30
#include "vpx_mem/vpx_mem.h"
31
#include "vp9/decoder/vp9_dboolhuff.h"
John Koleszar's avatar
John Koleszar committed
32

33
#include "vp9/common/vp9_seg_common.h"
34
#include "vp9/common/vp9_tile_common.h"
35
#include "vp9_rtcd.h"
36

John Koleszar's avatar
John Koleszar committed
37
38
39
#include <assert.h>
#include <stdio.h>

40
41
#define COEFCOUNT_TESTING

Yaowu Xu's avatar
Yaowu Xu committed
42
//#define DEC_DEBUG
43
44
45
46
#ifdef DEC_DEBUG
int dec_debug = 0;
#endif

John Koleszar's avatar
John Koleszar committed
47
48
49
50
51
52
53
54
55
56
57
58
static int merge_index(int v, int n, int modulus) {
  int max1 = (n - 1 - modulus / 2) / modulus + 1;
  if (v < max1) v = v * modulus + modulus / 2;
  else {
    int w;
    v -= max1;
    w = v;
    v += (v + modulus - modulus / 2) / modulus;
    while (v % modulus == modulus / 2 ||
           w != v - (v + modulus - modulus / 2) / modulus) v++;
  }
  return v;
59
60
}

John Koleszar's avatar
John Koleszar committed
61
62
63
static int inv_remap_prob(int v, int m) {
  const int n = 256;
  const int modulus = MODULUS_PARAM;
64
  int i;
John Koleszar's avatar
John Koleszar committed
65
66
  v = merge_index(v, n - 1, modulus);
  if ((m << 1) <= n) {
67
    i = vp9_inv_recenter_nonneg(v + 1, m);
John Koleszar's avatar
John Koleszar committed
68
  } else {
69
    i = n - 1 - vp9_inv_recenter_nonneg(v + 1, n - 1 - m);
John Koleszar's avatar
John Koleszar committed
70
71
  }
  return i;
72
}
73

74
static vp9_prob read_prob_diff_update(vp9_reader *const bc, int oldp) {
75
  int delp = vp9_decode_term_subexp(bc, SUBEXP_PARAM, 255);
76
  return (vp9_prob)inv_remap_prob(delp, oldp);
77
}
78

79
void vp9_init_de_quantizer(VP9D_COMP *pbi) {
John Koleszar's avatar
John Koleszar committed
80
81
  int i;
  int Q;
82
  VP9_COMMON *const pc = &pbi->common;
John Koleszar's avatar
John Koleszar committed
83
84

  for (Q = 0; Q < QINDEX_RANGE; Q++) {
85
86
    pc->Y1dequant[Q][0] = (int16_t)vp9_dc_quant(Q, pc->y1dc_delta_q);
    pc->UVdequant[Q][0] = (int16_t)vp9_dc_uv_quant(Q, pc->uvdc_delta_q);
John Koleszar's avatar
John Koleszar committed
87
88
89

    /* all the ac values =; */
    for (i = 1; i < 16; i++) {
90
      int rc = vp9_default_zig_zag1d_4x4[i];
John Koleszar's avatar
John Koleszar committed
91

92
93
      pc->Y1dequant[Q][rc] = (int16_t)vp9_ac_yquant(Q);
      pc->UVdequant[Q][rc] = (int16_t)vp9_ac_uv_quant(Q, pc->uvac_delta_q);
John Koleszar's avatar
John Koleszar committed
94
    }
John Koleszar's avatar
John Koleszar committed
95
  }
John Koleszar's avatar
John Koleszar committed
96
97
}

98
static void mb_init_dequantizer(VP9D_COMP *pbi, MACROBLOCKD *xd) {
John Koleszar's avatar
John Koleszar committed
99
100
  int i;
  int QIndex;
101
  VP9_COMMON *const pc = &pbi->common;
John Koleszar's avatar
John Koleszar committed
102
103
104
  int segment_id = xd->mode_info_context->mbmi.segment_id;

  // Set the Q baseline allowing for any segment level adjustment
105
  if (vp9_segfeature_active(xd, segment_id, SEG_LVL_ALT_Q)) {
John Koleszar's avatar
John Koleszar committed
106
107
    /* Abs Value */
    if (xd->mb_segment_abs_delta == SEGMENT_ABSDATA)
108
      QIndex = vp9_get_segdata(xd, segment_id, SEG_LVL_ALT_Q);
John Koleszar's avatar
John Koleszar committed
109
110
111
112

    /* Delta Value */
    else {
      QIndex = pc->base_qindex +
113
               vp9_get_segdata(xd, segment_id, SEG_LVL_ALT_Q);
John Koleszar's avatar
John Koleszar committed
114
      QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0;    /* Clamp to valid range */
John Koleszar's avatar
John Koleszar committed
115
    }
John Koleszar's avatar
John Koleszar committed
116
117
  } else
    QIndex = pc->base_qindex;
Deb Mukherjee's avatar
Deb Mukherjee committed
118
  xd->q_index = QIndex;
John Koleszar's avatar
John Koleszar committed
119

John Koleszar's avatar
John Koleszar committed
120
121
122
123
  /* Set up the block level dequant pointers */
  for (i = 0; i < 16; i++) {
    xd->block[i].dequant = pc->Y1dequant[QIndex];
  }
John Koleszar's avatar
John Koleszar committed
124

Yaowu Xu's avatar
Yaowu Xu committed
125
126
127
128
129
130
  xd->inv_txm4x4_1        = vp9_short_idct4x4llm_1;
  xd->inv_txm4x4          = vp9_short_idct4x4llm;
  xd->itxm_add            = vp9_dequant_idct_add;
  xd->dc_only_itxm_add    = vp9_dc_only_idct_add_c;
  xd->itxm_add_y_block    = vp9_dequant_idct_add_y_block;
  xd->itxm_add_uv_block   = vp9_dequant_idct_add_uv_block;
Hui Su's avatar
Hui Su committed
131
#if CONFIG_LOSSLESS
Yaowu Xu's avatar
Yaowu Xu committed
132
133
134
135
136
137
138
139
  if (xd->lossless) {
    assert(QIndex == 0);
    xd->inv_txm4x4_1        = vp9_short_inv_walsh4x4_1_x8;
    xd->inv_txm4x4          = vp9_short_inv_walsh4x4_x8;
    xd->itxm_add            = vp9_dequant_idct_add_lossless_c;
    xd->dc_only_itxm_add    = vp9_dc_only_inv_walsh_add_c;
    xd->itxm_add_y_block    = vp9_dequant_idct_add_y_block_lossless_c;
    xd->itxm_add_uv_block   = vp9_dequant_idct_add_uv_block_lossless_c;
John Koleszar's avatar
John Koleszar committed
140
  }
Hui Su's avatar
Hui Su committed
141
142
#endif

John Koleszar's avatar
John Koleszar committed
143
144
145
  for (i = 16; i < 24; i++) {
    xd->block[i].dequant = pc->UVdequant[QIndex];
  }
John Koleszar's avatar
John Koleszar committed
146
147
}

148
149
150
/* skip_recon_mb() is Modified: Instead of writing the result to predictor buffer and then copying it
 *  to dst buffer, we can write the result directly to dst buffer. This eliminates unnecessary copy.
 */
151
static void skip_recon_mb(VP9D_COMP *pbi, MACROBLOCKD *xd) {
John Koleszar's avatar
John Koleszar committed
152
  if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
153
154
155
    if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB64X64) {
      vp9_build_intra_predictors_sb64uv_s(xd);
      vp9_build_intra_predictors_sb64y_s(xd);
156
    } else if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB32X32) {
157
158
      vp9_build_intra_predictors_sbuv_s(xd);
      vp9_build_intra_predictors_sby_s(xd);
159
    } else {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
160
161
      vp9_build_intra_predictors_mbuv_s(xd);
      vp9_build_intra_predictors_mby_s(xd);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
162
    }
John Koleszar's avatar
John Koleszar committed
163
  } else {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
164
165
166
167
168
169
170
    if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB64X64) {
      vp9_build_inter64x64_predictors_sb(xd,
                                         xd->dst.y_buffer,
                                         xd->dst.u_buffer,
                                         xd->dst.v_buffer,
                                         xd->dst.y_stride,
                                         xd->dst.uv_stride);
171
    } else if (xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB32X32) {
172
173
174
175
176
177
      vp9_build_inter32x32_predictors_sb(xd,
                                         xd->dst.y_buffer,
                                         xd->dst.u_buffer,
                                         xd->dst.v_buffer,
                                         xd->dst.y_stride,
                                         xd->dst.uv_stride);
178
    } else {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
179
      vp9_build_1st_inter16x16_predictors_mb(xd,
180
181
182
183
184
                                             xd->dst.y_buffer,
                                             xd->dst.u_buffer,
                                             xd->dst.v_buffer,
                                             xd->dst.y_stride,
                                             xd->dst.uv_stride);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
185
186
187

      if (xd->mode_info_context->mbmi.second_ref_frame > 0) {
        vp9_build_2nd_inter16x16_predictors_mb(xd,
188
189
190
191
192
                                               xd->dst.y_buffer,
                                               xd->dst.u_buffer,
                                               xd->dst.v_buffer,
                                               xd->dst.y_stride,
                                               xd->dst.uv_stride);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
193
194
195
196
197
198
199
200
201
202
      }
#if CONFIG_COMP_INTERINTRA_PRED
      else if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) {
        vp9_build_interintra_16x16_predictors_mb(xd,
                                                 xd->dst.y_buffer,
                                                 xd->dst.u_buffer,
                                                 xd->dst.v_buffer,
                                                 xd->dst.y_stride,
                                                 xd->dst.uv_stride);
      }
203
#endif
Ronald S. Bultje's avatar
Ronald S. Bultje committed
204
    }
John Koleszar's avatar
John Koleszar committed
205
  }
John Koleszar's avatar
John Koleszar committed
206
207
}

208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
static void decode_16x16(VP9D_COMP *pbi, MACROBLOCKD *xd,
                         BOOL_DECODER* const bc) {
  BLOCKD *bd = &xd->block[0];
  TX_TYPE tx_type = get_tx_type_16x16(xd, bd);
#ifdef DEC_DEBUG
  if (dec_debug) {
    int i;
    printf("\n");
    printf("qcoeff 16x16\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", xd->qcoeff[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("\n");
    printf("predictor\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", xd->predictor[i]);
      if (i % 16 == 15) printf("\n");
    }
  }
#endif
  if (tx_type != DCT_DCT) {
    vp9_ht_dequant_idct_add_16x16_c(tx_type, xd->qcoeff,
                                    xd->block[0].dequant, xd->predictor,
Scott LaVarnway's avatar
Scott LaVarnway committed
232
233
                                    xd->dst.y_buffer, 16, xd->dst.y_stride,
                                    xd->eobs[0]);
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
  } else {
    vp9_dequant_idct_add_16x16(xd->qcoeff, xd->block[0].dequant,
                               xd->predictor, xd->dst.y_buffer,
                               16, xd->dst.y_stride, xd->eobs[0]);
  }
  vp9_dequant_idct_add_uv_block_8x8(
      xd->qcoeff + 16 * 16, xd->block[16].dequant,
      xd->predictor + 16 * 16, xd->dst.u_buffer, xd->dst.v_buffer,
      xd->dst.uv_stride, xd->eobs + 16, xd);
}

static void decode_8x8(VP9D_COMP *pbi, MACROBLOCKD *xd,
                       BOOL_DECODER* const bc) {
  // First do Y
  // if the first one is DCT_DCT assume all the rest are as well
  TX_TYPE tx_type = get_tx_type_8x8(xd, &xd->block[0]);
#ifdef DEC_DEBUG
  if (dec_debug) {
    int i;
    printf("\n");
    printf("qcoeff 8x8\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", xd->qcoeff[i]);
      if (i % 16 == 15) printf("\n");
    }
  }
#endif
  if (tx_type != DCT_DCT || xd->mode_info_context->mbmi.mode == I8X8_PRED) {
    int i;
    for (i = 0; i < 4; i++) {
      int ib = vp9_i8x8_block[i];
      int idx = (ib & 0x02) ? (ib + 2) : ib;
266
267
268
269
      int16_t *q  = xd->block[idx].qcoeff;
      int16_t *dq = xd->block[0].dequant;
      uint8_t *pre = xd->block[ib].predictor;
      uint8_t *dst = *(xd->block[ib].base_dst) + xd->block[ib].dst;
270
271
272
273
      int stride = xd->dst.y_stride;
      BLOCKD *b = &xd->block[ib];
      if (xd->mode_info_context->mbmi.mode == I8X8_PRED) {
        int i8x8mode = b->bmi.as_mode.first;
274
        vp9_intra8x8_predict(xd, b, i8x8mode, b->predictor);
275
276
277
      }
      tx_type = get_tx_type_8x8(xd, &xd->block[ib]);
      if (tx_type != DCT_DCT) {
Scott LaVarnway's avatar
Scott LaVarnway committed
278
279
        vp9_ht_dequant_idct_add_8x8_c(tx_type, q, dq, pre, dst, 16, stride,
                                      xd->eobs[idx]);
280
281
      } else {
        vp9_dequant_idct_add_8x8_c(q, dq, pre, dst, 16, stride,
282
                                   xd->eobs[idx]);
283
284
      }
    }
285
  } else {
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
    vp9_dequant_idct_add_y_block_8x8(xd->qcoeff,
                                     xd->block[0].dequant,
                                     xd->predictor,
                                     xd->dst.y_buffer,
                                     xd->dst.y_stride,
                                     xd->eobs, xd);
  }

  // Now do UV
  if (xd->mode_info_context->mbmi.mode == I8X8_PRED) {
    int i;
    for (i = 0; i < 4; i++) {
      int ib = vp9_i8x8_block[i];
      BLOCKD *b = &xd->block[ib];
      int i8x8mode = b->bmi.as_mode.first;
      b = &xd->block[16 + i];
302
      vp9_intra_uv4x4_predict(xd, &xd->block[16 + i], i8x8mode, b->predictor);
Yaowu Xu's avatar
Yaowu Xu committed
303
      xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
304
305
                    *(b->base_dst) + b->dst, 8, b->dst_stride);
      b = &xd->block[20 + i];
306
      vp9_intra_uv4x4_predict(xd, &xd->block[20 + i], i8x8mode, b->predictor);
Yaowu Xu's avatar
Yaowu Xu committed
307
      xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
308
309
310
                    *(b->base_dst) + b->dst, 8, b->dst_stride);
    }
  } else if (xd->mode_info_context->mbmi.mode == SPLITMV) {
Yaowu Xu's avatar
Yaowu Xu committed
311
    xd->itxm_add_uv_block(xd->qcoeff + 16 * 16, xd->block[16].dequant,
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
         xd->predictor + 16 * 16, xd->dst.u_buffer, xd->dst.v_buffer,
         xd->dst.uv_stride, xd->eobs + 16);
  } else {
    vp9_dequant_idct_add_uv_block_8x8
        (xd->qcoeff + 16 * 16, xd->block[16].dequant,
         xd->predictor + 16 * 16, xd->dst.u_buffer, xd->dst.v_buffer,
         xd->dst.uv_stride, xd->eobs + 16, xd);
  }
#ifdef DEC_DEBUG
  if (dec_debug) {
    int i;
    printf("\n");
    printf("predictor\n");
    for (i = 0; i < 384; i++) {
      printf("%3d ", xd->predictor[i]);
      if (i % 16 == 15) printf("\n");
    }
  }
#endif
}

static void decode_4x4(VP9D_COMP *pbi, MACROBLOCKD *xd,
                       BOOL_DECODER* const bc) {
  TX_TYPE tx_type;
  int i, eobtotal = 0;
  MB_PREDICTION_MODE mode = xd->mode_info_context->mbmi.mode;
  if (mode == I8X8_PRED) {
    for (i = 0; i < 4; i++) {
      int ib = vp9_i8x8_block[i];
      const int iblock[4] = {0, 1, 4, 5};
      int j;
      int i8x8mode;
      BLOCKD *b;
      b = &xd->block[ib];
      i8x8mode = b->bmi.as_mode.first;
347
      vp9_intra8x8_predict(xd, b, i8x8mode, b->predictor);
348
349
350
351
352
353
354
      for (j = 0; j < 4; j++) {
        b = &xd->block[ib + iblock[j]];
        tx_type = get_tx_type_4x4(xd, b);
        if (tx_type != DCT_DCT) {
          vp9_ht_dequant_idct_add_c(tx_type, b->qcoeff,
                                    b->dequant, b->predictor,
                                    *(b->base_dst) + b->dst, 16,
Scott LaVarnway's avatar
Scott LaVarnway committed
355
                                    b->dst_stride, b->eob);
356
        } else {
Yaowu Xu's avatar
Yaowu Xu committed
357
          xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
Yaowu Xu's avatar
Yaowu Xu committed
358
                        *(b->base_dst) + b->dst, 16, b->dst_stride);
359
360
361
        }
      }
      b = &xd->block[16 + i];
362
      vp9_intra_uv4x4_predict(xd, b, i8x8mode, b->predictor);
Yaowu Xu's avatar
Yaowu Xu committed
363
      xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
364
365
                    *(b->base_dst) + b->dst, 8, b->dst_stride);
      b = &xd->block[20 + i];
366
      vp9_intra_uv4x4_predict(xd, b, i8x8mode, b->predictor);
Yaowu Xu's avatar
Yaowu Xu committed
367
      xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
368
369
370
371
372
373
374
375
376
377
378
379
380
381
                    *(b->base_dst) + b->dst, 8, b->dst_stride);
    }
  } else if (mode == B_PRED) {
    for (i = 0; i < 16; i++) {
      int b_mode;
      BLOCKD *b = &xd->block[i];
      b_mode = xd->mode_info_context->bmi[i].as_mode.first;
#if CONFIG_NEWBINTRAMODES
      xd->mode_info_context->bmi[i].as_mode.context = b->bmi.as_mode.context =
          vp9_find_bpred_context(b);
#endif
      if (!xd->mode_info_context->mbmi.mb_skip_coeff)
        eobtotal += vp9_decode_coefs_4x4(pbi, xd, bc, PLANE_TYPE_Y_WITH_DC, i);

382
      vp9_intra4x4_predict(xd, b, b_mode, b->predictor);
383
384
385
386
      tx_type = get_tx_type_4x4(xd, b);
      if (tx_type != DCT_DCT) {
        vp9_ht_dequant_idct_add_c(tx_type, b->qcoeff,
                                  b->dequant, b->predictor,
Scott LaVarnway's avatar
Scott LaVarnway committed
387
388
                                  *(b->base_dst) + b->dst, 16, b->dst_stride,
                                  b->eob);
389
      } else {
Yaowu Xu's avatar
Yaowu Xu committed
390
        xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
Yaowu Xu's avatar
Yaowu Xu committed
391
                      *(b->base_dst) + b->dst, 16, b->dst_stride);
392
393
394
395
396
397
      }
    }
    if (!xd->mode_info_context->mbmi.mb_skip_coeff) {
      vp9_decode_mb_tokens_4x4_uv(pbi, xd, bc);
    }
    vp9_build_intra_predictors_mbuv(xd);
Yaowu Xu's avatar
Yaowu Xu committed
398
    xd->itxm_add_uv_block(xd->qcoeff + 16 * 16,
399
400
401
402
403
404
                           xd->block[16].dequant,
                           xd->predictor + 16 * 16,
                           xd->dst.u_buffer,
                           xd->dst.v_buffer,
                           xd->dst.uv_stride,
                           xd->eobs + 16);
405
  } else if (mode == SPLITMV || get_tx_type_4x4(xd, &xd->block[0]) == DCT_DCT) {
Yaowu Xu's avatar
Yaowu Xu committed
406
    xd->itxm_add_y_block(xd->qcoeff,
407
408
409
410
411
                          xd->block[0].dequant,
                          xd->predictor,
                          xd->dst.y_buffer,
                          xd->dst.y_stride,
                          xd->eobs);
Yaowu Xu's avatar
Yaowu Xu committed
412
    xd->itxm_add_uv_block(xd->qcoeff + 16 * 16,
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
                           xd->block[16].dequant,
                           xd->predictor + 16 * 16,
                           xd->dst.u_buffer,
                           xd->dst.v_buffer,
                           xd->dst.uv_stride,
                           xd->eobs + 16);
  } else {
#ifdef DEC_DEBUG
    if (dec_debug) {
      int i;
      printf("\n");
      printf("qcoeff 4x4\n");
      for (i = 0; i < 400; i++) {
        printf("%3d ", xd->qcoeff[i]);
        if (i % 16 == 15) printf("\n");
      }
      printf("\n");
      printf("predictor\n");
      for (i = 0; i < 400; i++) {
        printf("%3d ", xd->predictor[i]);
        if (i % 16 == 15) printf("\n");
      }
    }
#endif
437
438
439
440
441
442
443
444
    for (i = 0; i < 16; i++) {
      BLOCKD *b = &xd->block[i];
      tx_type = get_tx_type_4x4(xd, b);
      if (tx_type != DCT_DCT) {
        vp9_ht_dequant_idct_add_c(tx_type, b->qcoeff,
                                  b->dequant, b->predictor,
                                  *(b->base_dst) + b->dst, 16,
                                  b->dst_stride, b->eob);
445
      } else {
446
447
        xd->itxm_add(b->qcoeff, b->dequant, b->predictor,
                      *(b->base_dst) + b->dst, 16, b->dst_stride);
448
449
      }
    }
Yaowu Xu's avatar
Yaowu Xu committed
450
    xd->itxm_add_uv_block(xd->qcoeff + 16 * 16,
451
452
453
454
455
456
457
458
459
                           xd->block[16].dequant,
                           xd->predictor + 16 * 16,
                           xd->dst.u_buffer,
                           xd->dst.v_buffer,
                           xd->dst.uv_stride,
                           xd->eobs + 16);
  }
}

460
static void decode_16x16_sb(VP9D_COMP *pbi, MACROBLOCKD *xd,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
461
462
463
                            BOOL_DECODER* const bc, int n,
                            int maska, int shiftb) {
  int x_idx = n & maska, y_idx = n >> shiftb;
464
465
466
467
468
469
  TX_TYPE tx_type = get_tx_type_16x16(xd, &xd->block[0]);
  if (tx_type != DCT_DCT) {
    vp9_ht_dequant_idct_add_16x16_c(
        tx_type, xd->qcoeff, xd->block[0].dequant,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
Scott LaVarnway's avatar
Scott LaVarnway committed
470
        xd->dst.y_stride, xd->dst.y_stride, xd->block[0].eob);
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
  } else {
    vp9_dequant_idct_add_16x16(
        xd->qcoeff, xd->block[0].dequant,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
        xd->dst.y_stride, xd->dst.y_stride, xd->eobs[0]);
  }
  vp9_dequant_idct_add_uv_block_8x8_inplace_c(
      xd->qcoeff + 16 * 16,
      xd->block[16].dequant,
      xd->dst.u_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.v_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.uv_stride, xd->eobs + 16, xd);
};

static void decode_8x8_sb(VP9D_COMP *pbi, MACROBLOCKD *xd,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
487
488
489
                          BOOL_DECODER* const bc, int n,
                          int maska, int shiftb) {
  int x_idx = n & maska, y_idx = n >> shiftb;
490
491
492
493
494
495
  TX_TYPE tx_type = get_tx_type_8x8(xd, &xd->block[0]);
  if (tx_type != DCT_DCT) {
    int i;
    for (i = 0; i < 4; i++) {
      int ib = vp9_i8x8_block[i];
      int idx = (ib & 0x02) ? (ib + 2) : ib;
496
497
      int16_t *q  = xd->block[idx].qcoeff;
      int16_t *dq = xd->block[0].dequant;
498
499
500
501
502
503
504
505
506
507
      int stride = xd->dst.y_stride;
      BLOCKD *b = &xd->block[ib];
      tx_type = get_tx_type_8x8(xd, &xd->block[ib]);
      if (tx_type != DCT_DCT) {
        vp9_ht_dequant_idct_add_8x8_c(
            tx_type, q, dq,
            xd->dst.y_buffer + (y_idx * 16 + (i / 2) * 8) * xd->dst.y_stride
            + x_idx * 16 + (i & 1) * 8,
            xd->dst.y_buffer + (y_idx * 16 + (i / 2) * 8) * xd->dst.y_stride
            + x_idx * 16 + (i & 1) * 8,
Scott LaVarnway's avatar
Scott LaVarnway committed
508
            stride, stride, b->eob);
509
510
511
512
513
514
515
      } else {
        vp9_dequant_idct_add_8x8_c(
            q, dq,
            xd->dst.y_buffer + (y_idx * 16 + (i / 2) * 8) * xd->dst.y_stride
            + x_idx * 16 + (i & 1) * 8,
            xd->dst.y_buffer + (y_idx * 16 + (i / 2) * 8) * xd->dst.y_stride
            + x_idx * 16 + (i & 1) * 8,
516
            stride, stride, b->eob);
517
518
      }
    }
519
520
521
522
523
  } else {
    vp9_dequant_idct_add_y_block_8x8_inplace_c(
        xd->qcoeff, xd->block[0].dequant,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
        xd->dst.y_stride, xd->eobs, xd);
524
  }
525
526
527
528
529
  vp9_dequant_idct_add_uv_block_8x8_inplace_c(
      xd->qcoeff + 16 * 16, xd->block[16].dequant,
      xd->dst.u_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.v_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.uv_stride, xd->eobs + 16, xd);
530
531
532
};

static void decode_4x4_sb(VP9D_COMP *pbi, MACROBLOCKD *xd,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
533
534
535
                          BOOL_DECODER* const bc, int n,
                          int maska, int shiftb) {
  int x_idx = n & maska, y_idx = n >> shiftb;
536
537
538
539
540
541
542
543
544
545
546
547
548
  TX_TYPE tx_type = get_tx_type_4x4(xd, &xd->block[0]);
  if (tx_type != DCT_DCT) {
    int i;
    for (i = 0; i < 16; i++) {
      BLOCKD *b = &xd->block[i];
      tx_type = get_tx_type_4x4(xd, b);
      if (tx_type != DCT_DCT) {
        vp9_ht_dequant_idct_add_c(
            tx_type, b->qcoeff, b->dequant,
            xd->dst.y_buffer + (y_idx * 16 + (i / 4) * 4) * xd->dst.y_stride
            + x_idx * 16 + (i & 3) * 4,
            xd->dst.y_buffer + (y_idx * 16 + (i / 4) * 4) * xd->dst.y_stride
            + x_idx * 16 + (i & 3) * 4,
Scott LaVarnway's avatar
Scott LaVarnway committed
549
            xd->dst.y_stride, xd->dst.y_stride, b->eob);
550
      } else {
Yaowu Xu's avatar
Yaowu Xu committed
551
        xd->itxm_add(
552
553
554
555
556
557
558
559
            b->qcoeff, b->dequant,
            xd->dst.y_buffer + (y_idx * 16 + (i / 4) * 4) * xd->dst.y_stride
            + x_idx * 16 + (i & 3) * 4,
            xd->dst.y_buffer + (y_idx * 16 + (i / 4) * 4) * xd->dst.y_stride
            + x_idx * 16 + (i & 3) * 4,
            xd->dst.y_stride, xd->dst.y_stride);
      }
    }
560
561
562
563
564
  } else {
    vp9_dequant_idct_add_y_block_4x4_inplace_c(
        xd->qcoeff, xd->block[0].dequant,
        xd->dst.y_buffer + y_idx * 16 * xd->dst.y_stride + x_idx * 16,
        xd->dst.y_stride, xd->eobs, xd);
565
566
567
568
569
570
571
572
  }
  vp9_dequant_idct_add_uv_block_4x4_inplace_c(
      xd->qcoeff + 16 * 16, xd->block[16].dequant,
      xd->dst.u_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.v_buffer + y_idx * 8 * xd->dst.uv_stride + x_idx * 8,
      xd->dst.uv_stride, xd->eobs + 16, xd);
};

Ronald S. Bultje's avatar
Ronald S. Bultje committed
573
574
575
static void decode_superblock64(VP9D_COMP *pbi, MACROBLOCKD *xd,
                                int mb_row, unsigned int mb_col,
                                BOOL_DECODER* const bc) {
576
577
578
579
  int i, n, eobtotal;
  TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size;
  VP9_COMMON *const pc = &pbi->common;
  MODE_INFO *orig_mi = xd->mode_info_context;
580
  const int mis = pc->mode_info_stride;
581

Ronald S. Bultje's avatar
Ronald S. Bultje committed
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
  assert(xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB64X64);

  if (pbi->common.frame_type != KEY_FRAME)
    vp9_setup_interp_filters(xd, xd->mode_info_context->mbmi.interp_filter, pc);

  // re-initialize macroblock dequantizer before detokenization
  if (xd->segmentation_enabled)
    mb_init_dequantizer(pbi, xd);

  if (xd->mode_info_context->mbmi.mb_skip_coeff) {
    int n;

    vp9_reset_mb_tokens_context(xd);
    for (n = 1; n <= 3; n++) {
      if (mb_col < pc->mb_cols - n)
        xd->above_context += n;
      if (mb_row < pc->mb_rows - n)
        xd->left_context += n;
      vp9_reset_mb_tokens_context(xd);
      if (mb_col < pc->mb_cols - n)
        xd->above_context -= n;
      if (mb_row < pc->mb_rows - n)
        xd->left_context -= n;
    }

    /* Special case:  Force the loopfilter to skip when eobtotal and
     * mb_skip_coeff are zero.
     */
    skip_recon_mb(pbi, xd);
    return;
  }

  /* do prediction */
  if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
    vp9_build_intra_predictors_sb64y_s(xd);
    vp9_build_intra_predictors_sb64uv_s(xd);
  } else {
    vp9_build_inter64x64_predictors_sb(xd, xd->dst.y_buffer,
                                       xd->dst.u_buffer, xd->dst.v_buffer,
                                       xd->dst.y_stride, xd->dst.uv_stride);
  }

  /* dequantization and idct */
  if (xd->mode_info_context->mbmi.txfm_size == TX_32X32) {
    for (n = 0; n < 4; n++) {
      const int x_idx = n & 1, y_idx = n >> 1;

      if (mb_col + x_idx * 2 >= pc->mb_cols ||
          mb_row + y_idx * 2 >= pc->mb_rows)
        continue;

      xd->left_context = pc->left_context + (y_idx << 1);
      xd->above_context = pc->above_context + mb_col + (x_idx << 1);
      xd->mode_info_context = orig_mi + x_idx * 2 + y_idx * 2 * mis;
      eobtotal = vp9_decode_sb_tokens(pbi, xd, bc);
      if (eobtotal == 0) {  // skip loopfilter
        xd->mode_info_context->mbmi.mb_skip_coeff = 1;
        if (mb_col + 1 < pc->mb_cols)
          xd->mode_info_context[1].mbmi.mb_skip_coeff = 1;
        if (mb_row + 1 < pc->mb_rows) {
          xd->mode_info_context[mis].mbmi.mb_skip_coeff = 1;
          if (mb_col + 1 < pc->mb_cols)
            xd->mode_info_context[mis + 1].mbmi.mb_skip_coeff = 1;
        }
      } else {
        vp9_dequant_idct_add_32x32(xd->sb_coeff_data.qcoeff, xd->block[0].dequant,
                                   xd->dst.y_buffer + x_idx * 32 +
                                       xd->dst.y_stride * y_idx * 32,
                                   xd->dst.y_buffer + x_idx * 32 +
                                       xd->dst.y_stride * y_idx * 32,
                                   xd->dst.y_stride, xd->dst.y_stride,
                                   xd->eobs[0]);
        vp9_dequant_idct_add_uv_block_16x16_c(xd->sb_coeff_data.qcoeff + 1024,
                                              xd->block[16].dequant,
                                              xd->dst.u_buffer + x_idx * 16 +
                                                xd->dst.uv_stride * y_idx * 16,
                                              xd->dst.v_buffer + x_idx * 16 +
                                                xd->dst.uv_stride * y_idx * 16,
                                              xd->dst.uv_stride, xd->eobs + 16);
      }
    }
  } else {
    for (n = 0; n < 16; n++) {
      int x_idx = n & 3, y_idx = n >> 2;

      if (mb_col + x_idx >= pc->mb_cols || mb_row + y_idx >= pc->mb_rows)
        continue;

      xd->above_context = pc->above_context + mb_col + x_idx;
      xd->left_context = pc->left_context + y_idx;
      xd->mode_info_context = orig_mi + x_idx + y_idx * mis;
673
      for (i = 0; i < 24; i++) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
        xd->block[i].eob = 0;
        xd->eobs[i] = 0;
      }

      eobtotal = vp9_decode_mb_tokens(pbi, xd, bc);
      if (eobtotal == 0) {  // skip loopfilter
        xd->mode_info_context->mbmi.mb_skip_coeff = 1;
        continue;
      }

      if (tx_size == TX_16X16) {
        decode_16x16_sb(pbi, xd, bc, n, 3, 2);
      } else if (tx_size == TX_8X8) {
        decode_8x8_sb(pbi, xd, bc, n, 3, 2);
      } else {
        decode_4x4_sb(pbi, xd, bc, n, 3, 2);
      }
    }
  }

  xd->above_context = pc->above_context + mb_col;
  xd->left_context = pc->left_context;
  xd->mode_info_context = orig_mi;
}

static void decode_superblock32(VP9D_COMP *pbi, MACROBLOCKD *xd,
                                int mb_row, unsigned int mb_col,
                                BOOL_DECODER* const bc) {
  int i, n, eobtotal;
  TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size;
  VP9_COMMON *const pc = &pbi->common;
  MODE_INFO *orig_mi = xd->mode_info_context;
  const int mis = pc->mode_info_stride;

  assert(xd->mode_info_context->mbmi.sb_type == BLOCK_SIZE_SB32X32);
709

710
711
712
  if (pbi->common.frame_type != KEY_FRAME)
    vp9_setup_interp_filters(xd, xd->mode_info_context->mbmi.interp_filter, pc);

713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
  // re-initialize macroblock dequantizer before detokenization
  if (xd->segmentation_enabled)
    mb_init_dequantizer(pbi, xd);

  if (xd->mode_info_context->mbmi.mb_skip_coeff) {
    vp9_reset_mb_tokens_context(xd);
    if (mb_col < pc->mb_cols - 1)
      xd->above_context++;
    if (mb_row < pc->mb_rows - 1)
      xd->left_context++;
    vp9_reset_mb_tokens_context(xd);
    if (mb_col < pc->mb_cols - 1)
      xd->above_context--;
    if (mb_row < pc->mb_rows - 1)
      xd->left_context--;

    /* Special case:  Force the loopfilter to skip when eobtotal and
     * mb_skip_coeff are zero.
     */
    skip_recon_mb(pbi, xd);
    return;
  }

  /* do prediction */
  if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
    vp9_build_intra_predictors_sby_s(xd);
    vp9_build_intra_predictors_sbuv_s(xd);
  } else {
    vp9_build_inter32x32_predictors_sb(xd, xd->dst.y_buffer,
                                       xd->dst.u_buffer, xd->dst.v_buffer,
                                       xd->dst.y_stride, xd->dst.uv_stride);
  }

  /* dequantization and idct */
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
  if (xd->mode_info_context->mbmi.txfm_size == TX_32X32) {
    eobtotal = vp9_decode_sb_tokens(pbi, xd, bc);
    if (eobtotal == 0) {  // skip loopfilter
      xd->mode_info_context->mbmi.mb_skip_coeff = 1;
      if (mb_col + 1 < pc->mb_cols)
        xd->mode_info_context[1].mbmi.mb_skip_coeff = 1;
      if (mb_row + 1 < pc->mb_rows) {
        xd->mode_info_context[mis].mbmi.mb_skip_coeff = 1;
        if (mb_col + 1 < pc->mb_cols)
          xd->mode_info_context[mis + 1].mbmi.mb_skip_coeff = 1;
      }
    } else {
      vp9_dequant_idct_add_32x32(xd->sb_coeff_data.qcoeff, xd->block[0].dequant,
                                 xd->dst.y_buffer, xd->dst.y_buffer,
                                 xd->dst.y_stride, xd->dst.y_stride,
                                 xd->eobs[0]);
      vp9_dequant_idct_add_uv_block_16x16_c(xd->sb_coeff_data.qcoeff + 1024,
                                            xd->block[16].dequant,
                                            xd->dst.u_buffer, xd->dst.v_buffer,
                                            xd->dst.uv_stride, xd->eobs + 16);
    }
Ronald S. Bultje's avatar
Ronald S. Bultje committed
768
  } else {
769
770
    for (n = 0; n < 4; n++) {
      int x_idx = n & 1, y_idx = n >> 1;
771

772
773
      if (mb_col + x_idx >= pc->mb_cols || mb_row + y_idx >= pc->mb_rows)
        continue;
774

775
776
777
      xd->above_context = pc->above_context + mb_col + x_idx;
      xd->left_context = pc->left_context + y_idx + (mb_row & 2);
      xd->mode_info_context = orig_mi + x_idx + y_idx * mis;
778
      for (i = 0; i < 24; i++) {
779
780
781
        xd->block[i].eob = 0;
        xd->eobs[i] = 0;
      }
782

783
784
785
786
787
      eobtotal = vp9_decode_mb_tokens(pbi, xd, bc);
      if (eobtotal == 0) {  // skip loopfilter
        xd->mode_info_context->mbmi.mb_skip_coeff = 1;
        continue;
      }
788

789
790
791
792
793
794
795
      if (tx_size == TX_16X16) {
        decode_16x16_sb(pbi, xd, bc, n, 1, 1);
      } else if (tx_size == TX_8X8) {
        decode_8x8_sb(pbi, xd, bc, n, 1, 1);
      } else {
        decode_4x4_sb(pbi, xd, bc, n, 1, 1);
      }
796
797
    }

798
799
800
    xd->above_context = pc->above_context + mb_col;
    xd->left_context = pc->left_context + (mb_row & 2);
    xd->mode_info_context = orig_mi;
801
  }
802
803
}

804
static void decode_macroblock(VP9D_COMP *pbi, MACROBLOCKD *xd,
Ronald S. Bultje's avatar
Ronald S. Bultje committed
805
                              int mb_row, unsigned int mb_col,
John Koleszar's avatar
John Koleszar committed
806
                              BOOL_DECODER* const bc) {
John Koleszar's avatar
John Koleszar committed
807
808
809
  int eobtotal = 0;
  MB_PREDICTION_MODE mode;
  int i;
Deb Mukherjee's avatar
Deb Mukherjee committed
810
  int tx_size;
811

Ronald S. Bultje's avatar
Ronald S. Bultje committed
812
  assert(!xd->mode_info_context->mbmi.sb_type);
John Koleszar's avatar
John Koleszar committed
813

Jingning Han's avatar
Jingning Han committed
814
815
816
817
  // re-initialize macroblock dequantizer before detokenization
  if (xd->segmentation_enabled)
    mb_init_dequantizer(pbi, xd);

Deb Mukherjee's avatar
Deb Mukherjee committed
818
  tx_size = xd->mode_info_context->mbmi.txfm_size;
Deb Mukherjee's avatar
Deb Mukherjee committed
819
820
  mode = xd->mode_info_context->mbmi.mode;

John Koleszar's avatar
John Koleszar committed
821
  if (xd->mode_info_context->mbmi.mb_skip_coeff) {
822
    vp9_reset_mb_tokens_context(xd);
823
  } else if (!bool_error(bc)) {
824
    for (i = 0; i < 24; i++) {
John Koleszar's avatar
John Koleszar committed
825
826
      xd->block[i].eob = 0;
      xd->eobs[i] = 0;
827
    }
828
829
    if (mode != B_PRED) {
      eobtotal = vp9_decode_mb_tokens(pbi, xd, bc);
Deb Mukherjee's avatar
Deb Mukherjee committed
830
    }
John Koleszar's avatar
John Koleszar committed
831
  }
832

Deb Mukherjee's avatar
Deb Mukherjee committed
833
  //mode = xd->mode_info_context->mbmi.mode;
834
  if (pbi->common.frame_type != KEY_FRAME)
835
    vp9_setup_interp_filters(xd, xd->mode_info_context->mbmi.interp_filter,
836
                             &pbi->common);
Gaute Strokkenes's avatar
Gaute Strokkenes committed
837

John Koleszar's avatar
John Koleszar committed
838
839
  if (eobtotal == 0 && mode != B_PRED && mode != SPLITMV
      && mode != I8X8_PRED
840
      && !bool_error(bc)) {
John Koleszar's avatar
John Koleszar committed
841
842
843
844
    /* Special case:  Force the loopfilter to skip when eobtotal and
     * mb_skip_coeff are zero.
     * */
    xd->mode_info_context->mbmi.mb_skip_coeff = 1;
845
846
    skip_recon_mb(pbi, xd);
    return;
John Koleszar's avatar
John Koleszar committed
847
  }
848
849
850
851
#ifdef DEC_DEBUG
  if (dec_debug)
    printf("Decoding mb:  %d %d\n", xd->mode_info_context->mbmi.mode, tx_size);
#endif
Yaowu Xu's avatar
Yaowu Xu committed
852

Jingning Han's avatar
Jingning Han committed
853
854
855
  // moved to be performed before detokenization
//  if (xd->segmentation_enabled)
//    mb_init_dequantizer(pbi, xd);
856

John Koleszar's avatar
John Koleszar committed
857
858
859
  /* do prediction */
  if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
    if (mode != I8X8_PRED) {
860
      vp9_build_intra_predictors_mbuv(xd);
John Koleszar's avatar
John Koleszar committed
861
      if (mode != B_PRED) {
862
        vp9_build_intra_predictors_mby(xd);
John Koleszar's avatar
John Koleszar committed
863
      }
John Koleszar's avatar
John Koleszar committed
864
    }
John Koleszar's avatar
John Koleszar committed
865
  } else {
866
867
868
869
870
871
#ifdef DEC_DEBUG
  if (dec_debug)
    printf("Decoding mb:  %d %d interp %d\n",
           xd->mode_info_context->mbmi.mode, tx_size,
           xd->mode_info_context->mbmi.interp_filter);
#endif
872
    vp9_build_inter_predictors_mb(xd);
John Koleszar's avatar
John Koleszar committed
873
874
  }

875
876
877
878
879
880
881
882
883
884
885
886
  if (tx_size == TX_16X16) {
    decode_16x16(pbi, xd, bc);
  } else if (tx_size == TX_8X8) {
    decode_8x8(pbi, xd, bc);
  } else {
    decode_4x4(pbi, xd, bc);
  }
#ifdef DEC_DEBUG
  if (dec_debug) {
    int i, j;
    printf("\n");
    printf("final y\n");
John Koleszar's avatar
John Koleszar committed
887
    for (i = 0; i < 16; i++) {
888
889
890
      for (j = 0; j < 16; j++)
        printf("%3d ", xd->dst.y_buffer[i * xd->dst.y_stride + j]);
      printf("\n");
John Koleszar's avatar
John Koleszar committed
891
    }
892
893
894
895
896
897
    printf("\n");
    printf("final u\n");
    for (i = 0; i < 8; i++) {
      for (j = 0; j < 8; j++)
        printf("%3d ", xd->dst.u_buffer[i * xd->dst.uv_stride + j]);
      printf("\n");
898
    }
899
900
901
902
903
904
    printf("\n");
    printf("final v\n");
    for (i = 0; i < 8; i++) {
      for (j = 0; j < 8; j++)
        printf("%3d ", xd->dst.v_buffer[i * xd->dst.uv_stride + j]);
      printf("\n");
905
    }
906
    fflush(stdout);
John Koleszar's avatar
John Koleszar committed
907
  }
908
#endif
Yaowu Xu's avatar
Yaowu Xu committed
909
}
John Koleszar's avatar
John Koleszar committed
910

911

912
static int get_delta_q(vp9_reader *bc, int prev, int *q_update) {
John Koleszar's avatar
John Koleszar committed
913
  int ret_val = 0;
John Koleszar's avatar
John Koleszar committed
914

915
916
  if (vp9_read_bit(bc)) {
    ret_val = vp9_read_literal(bc, 4);
John Koleszar's avatar
John Koleszar committed
917

918
    if (vp9_read_bit(bc))
John Koleszar's avatar
John Koleszar committed
919
920
      ret_val = -ret_val;
  }
John Koleszar's avatar
John Koleszar committed
921

John Koleszar's avatar
John Koleszar committed
922
923
924
  /* Trigger a quantizer update if the delta-q value has changed */
  if (ret_val != prev)
    *q_update = 1;
John Koleszar's avatar
John Koleszar committed
925

John Koleszar's avatar
John Koleszar committed
926
  return ret_val;
John Koleszar's avatar
John Koleszar committed
927
928
929
930
931
932
933
}

#ifdef PACKET_TESTING
#include <stdio.h>
FILE *vpxlog = 0;
#endif

Ronald S. Bultje's avatar
Ronald S. Bultje committed
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
static void set_offsets(VP9D_COMP *pbi, int block_size,
                        int mb_row, int mb_col) {
  VP9_COMMON *const cm = &pbi->common;
  MACROBLOCKD *const xd = &pbi->mb;
  const int mis = cm->mode_info_stride;
  const int idx = mis * mb_row + mb_col;
  const int dst_fb_idx = cm->new_fb_idx;
  const int recon_y_stride = cm->yv12_fb[dst_fb_idx].y_stride;
  const int recon_uv_stride = cm->yv12_fb[dst_fb_idx].uv_stride;
  const int recon_yoffset = mb_row * 16 * recon_y_stride + 16 * mb_col;
  const int recon_uvoffset = mb_row * 8 * recon_uv_stride + 8 * mb_col;

  xd->mode_info_context = cm->mi + idx;
  xd->mode_info_context->mbmi.sb_type = block_size >> 5;
  xd->prev_mode_info_context = cm->prev_mi + idx;
  xd->above_context = cm->above_context + mb_col;
  xd->left_context = cm->left_context + (mb_row & 3);
John Koleszar's avatar
John Koleszar committed
951

Ronald S. Bultje's avatar
Ronald S. Bultje committed
952
953
954
955
956
957
958
959
960
961
  /* 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
   */
  block_size >>= 4;  // in mb units
  xd->mb_to_top_edge = -((mb_row * 16)) << 3;
  xd->mb_to_left_edge = -((mb_col * 16) << 3);
  xd->mb_to_bottom_edge = ((cm->mb_rows - block_size - mb_row) * 16) << 3;
  xd->mb_to_right_edge = ((cm->mb_cols - block_size - mb_col) * 16) << 3;

962
963
964
  xd->up_available    = (mb_row != 0);
  xd->left_available  = (mb_col > cm->cur_tile_mb_col_start);
  xd->right_available = (mb_col + block_size < cm->cur_tile_mb_col_end);
Ronald S. Bultje's avatar
Ronald S. Bultje committed
965
966
967
968
969

  xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
  xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
  xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
}
John Koleszar's avatar
John Koleszar committed
970

Ronald S. Bultje's avatar
Ronald S. Bultje committed
971
972
973
974
975
976
977
978
979
980
981
static void set_refs(VP9D_COMP *pbi, int block_size,
                     int mb_row, int mb_col) {
  VP9_COMMON *const cm = &pbi->common;
  MACROBLOCKD *const xd = &pbi->mb;
  MODE_INFO *mi = xd->mode_info_context;
  MB_MODE_INFO *const mbmi = &mi->mbmi;

  if (mbmi->ref_frame > INTRA_FRAME) {
    int ref_fb_idx, ref_yoffset, ref_uvoffset, ref_y_stride, ref_uv_stride;

    /* Select the appropriate reference frame for this MB */
982
    ref_fb_idx = cm->active_ref_idx[mbmi->ref_frame - 1];
John Koleszar's avatar
John Koleszar committed
983

Ronald S. Bultje's avatar
Ronald S. Bultje committed
984
985
986
987
988
989
990
    ref_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
    ref_yoffset = mb_row * 16 * ref_y_stride + 16 * mb_col;
    xd->pre.y_buffer = cm->yv12_fb[ref_fb_idx].y_buffer + ref_yoffset;
    ref_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
    ref_uvoffset = mb_row * 8 * ref_uv_stride + 8 * mb_col;
    xd->pre.u_buffer = cm->yv12_fb[ref_fb_idx].u_buffer + ref_uvoffset;
    xd->pre.v_buffer = cm->yv12_fb[ref_fb_idx].v_buffer + ref_uvoffset;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
991

Ronald S. Bultje's avatar
Ronald S. Bultje committed
992
993
    /* propagate errors from reference frames */
    xd->corrupted |= cm->yv12_fb[ref_fb_idx].corrupted;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
994

Ronald S. Bultje's avatar
Ronald S. Bultje committed
995
996
    if (mbmi->second_ref_frame > INTRA_FRAME) {
      int second_ref_fb_idx;
Yaowu Xu's avatar
Yaowu Xu committed
997

Ronald S. Bultje's avatar
Ronald S. Bultje committed
998
      /* Select the appropriate reference frame for this MB */
999
      second_ref_fb_idx = cm->active_ref_idx[mbmi->second_ref_frame - 1];
Ronald S. Bultje's avatar
Ronald S. Bultje committed
1000

For faster browsing, not all history is shown. View entire blame