1 /* 2 Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * 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. 9 */ 10 11 #include <assert.h> 12 13 #include "vp9/common/vp9_common.h" 14 #include "vp9/common/vp9_entropy.h" 15 #include "vp9/common/vp9_entropymode.h" 16 #include "vp9/common/vp9_entropymv.h" 17 #include "vp9/common/vp9_mvref_common.h" 18 #include "vp9/common/vp9_pred_common.h" 19 #include "vp9/common/vp9_reconinter.h" 20 #include "vp9/common/vp9_seg_common.h" 21 22 #include "vp9/decoder/vp9_decodemv.h" 23 #include "vp9/decoder/vp9_decodeframe.h" 24 #include "vp9/decoder/vp9_reader.h" 25 26 static MB_PREDICTION_MODE read_intra_mode(vp9_reader *r, const vp9_prob *p) { 27 return (MB_PREDICTION_MODE)vp9_read_tree(r, vp9_intra_mode_tree, p); 28 } 29 30 static MB_PREDICTION_MODE read_intra_mode_y(VP9_COMMON *cm, vp9_reader *r, 31 int size_group) { 32 const MB_PREDICTION_MODE y_mode = read_intra_mode(r, 33 cm->fc.y_mode_prob[size_group]); 34 if (!cm->frame_parallel_decoding_mode) 35 ++cm->counts.y_mode[size_group][y_mode]; 36 return y_mode; 37 } 38 39 static MB_PREDICTION_MODE read_intra_mode_uv(VP9_COMMON *cm, vp9_reader *r, 40 MB_PREDICTION_MODE y_mode) { 41 const MB_PREDICTION_MODE uv_mode = read_intra_mode(r, 42 cm->fc.uv_mode_prob[y_mode]); 43 if (!cm->frame_parallel_decoding_mode) 44 ++cm->counts.uv_mode[y_mode][uv_mode]; 45 return uv_mode; 46 } 47 48 static MB_PREDICTION_MODE read_inter_mode(VP9_COMMON *cm, vp9_reader *r, 49 int ctx) { 50 const int mode = vp9_read_tree(r, vp9_inter_mode_tree, 51 cm->fc.inter_mode_probs[ctx]); 52 if (!cm->frame_parallel_decoding_mode) 53 ++cm->counts.inter_mode[ctx][mode]; 54 55 return NEARESTMV + mode; 56 } 57 58 static int read_segment_id(vp9_reader *r, const struct segmentation *seg) { 59 return vp9_read_tree(r, vp9_segment_tree, seg->tree_probs); 60 } 61 62 static TX_SIZE read_selected_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd, 63 TX_SIZE max_tx_size, vp9_reader *r) { 64 const int ctx = vp9_get_tx_size_context(xd); 65 const vp9_prob *tx_probs = get_tx_probs(max_tx_size, ctx, &cm->fc.tx_probs); 66 int tx_size = vp9_read(r, tx_probs[0]); 67 if (tx_size != TX_4X4 && max_tx_size >= TX_16X16) { 68 tx_size += vp9_read(r, tx_probs[1]); 69 if (tx_size != TX_8X8 && max_tx_size >= TX_32X32) 70 tx_size += vp9_read(r, tx_probs[2]); 71 } 72 73 if (!cm->frame_parallel_decoding_mode) 74 ++get_tx_counts(max_tx_size, ctx, &cm->counts.tx)[tx_size]; 75 return (TX_SIZE)tx_size; 76 } 77 78 static TX_SIZE read_tx_size(VP9_COMMON *cm, MACROBLOCKD *xd, TX_MODE tx_mode, 79 BLOCK_SIZE bsize, int allow_select, vp9_reader *r) { 80 const TX_SIZE max_tx_size = max_txsize_lookup[bsize]; 81 if (allow_select && tx_mode == TX_MODE_SELECT && bsize >= BLOCK_8X8) 82 return read_selected_tx_size(cm, xd, max_tx_size, r); 83 else 84 return MIN(max_tx_size, tx_mode_to_biggest_tx_size[tx_mode]); 85 } 86 87 static void set_segment_id(VP9_COMMON *cm, BLOCK_SIZE bsize, 88 int mi_row, int mi_col, int segment_id) { 89 const int mi_offset = mi_row * cm->mi_cols + mi_col; 90 const int bw = num_8x8_blocks_wide_lookup[bsize]; 91 const int bh = num_8x8_blocks_high_lookup[bsize]; 92 const int xmis = MIN(cm->mi_cols - mi_col, bw); 93 const int ymis = MIN(cm->mi_rows - mi_row, bh); 94 int x, y; 95 96 assert(segment_id >= 0 && segment_id < MAX_SEGMENTS); 97 98 for (y = 0; y < ymis; y++) 99 for (x = 0; x < xmis; x++) 100 cm->last_frame_seg_map[mi_offset + y * cm->mi_cols + x] = segment_id; 101 } 102 103 static int read_intra_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd, 104 int mi_row, int mi_col, 105 vp9_reader *r) { 106 struct segmentation *const seg = &cm->seg; 107 const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type; 108 int segment_id; 109 110 if (!seg->enabled) 111 return 0; // Default for disabled segmentation 112 113 if (!seg->update_map) 114 return 0; 115 116 segment_id = read_segment_id(r, seg); 117 set_segment_id(cm, bsize, mi_row, mi_col, segment_id); 118 return segment_id; 119 } 120 121 static int read_inter_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd, 122 int mi_row, int mi_col, vp9_reader *r) { 123 struct segmentation *const seg = &cm->seg; 124 MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; 125 const BLOCK_SIZE bsize = mbmi->sb_type; 126 int predicted_segment_id, segment_id; 127 128 if (!seg->enabled) 129 return 0; // Default for disabled segmentation 130 131 predicted_segment_id = vp9_get_segment_id(cm, cm->last_frame_seg_map, 132 bsize, mi_row, mi_col); 133 if (!seg->update_map) 134 return predicted_segment_id; 135 136 if (seg->temporal_update) { 137 const vp9_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd); 138 mbmi->seg_id_predicted = vp9_read(r, pred_prob); 139 segment_id = mbmi->seg_id_predicted ? predicted_segment_id 140 : read_segment_id(r, seg); 141 } else { 142 segment_id = read_segment_id(r, seg); 143 } 144 set_segment_id(cm, bsize, mi_row, mi_col, segment_id); 145 return segment_id; 146 } 147 148 static int read_skip(VP9_COMMON *cm, const MACROBLOCKD *xd, 149 int segment_id, vp9_reader *r) { 150 if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) { 151 return 1; 152 } else { 153 const int ctx = vp9_get_skip_context(xd); 154 const int skip = vp9_read(r, cm->fc.skip_probs[ctx]); 155 if (!cm->frame_parallel_decoding_mode) 156 ++cm->counts.skip[ctx][skip]; 157 return skip; 158 } 159 } 160 161 static void read_intra_frame_mode_info(VP9_COMMON *const cm, 162 MACROBLOCKD *const xd, 163 int mi_row, int mi_col, vp9_reader *r) { 164 MODE_INFO *const mi = xd->mi[0]; 165 MB_MODE_INFO *const mbmi = &mi->mbmi; 166 const MODE_INFO *above_mi = xd->mi[-cm->mi_stride]; 167 const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL; 168 const BLOCK_SIZE bsize = mbmi->sb_type; 169 int i; 170 171 mbmi->segment_id = read_intra_segment_id(cm, xd, mi_row, mi_col, r); 172 mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r); 173 mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, bsize, 1, r); 174 mbmi->ref_frame[0] = INTRA_FRAME; 175 mbmi->ref_frame[1] = NONE; 176 177 switch (bsize) { 178 case BLOCK_4X4: 179 for (i = 0; i < 4; ++i) 180 mi->bmi[i].as_mode = 181 read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, i)); 182 mbmi->mode = mi->bmi[3].as_mode; 183 break; 184 case BLOCK_4X8: 185 mi->bmi[0].as_mode = mi->bmi[2].as_mode = 186 read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 0)); 187 mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode = 188 read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 1)); 189 break; 190 case BLOCK_8X4: 191 mi->bmi[0].as_mode = mi->bmi[1].as_mode = 192 read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 0)); 193 mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode = 194 read_intra_mode(r, get_y_mode_probs(mi, above_mi, left_mi, 2)); 195 break; 196 default: 197 mbmi->mode = read_intra_mode(r, 198 get_y_mode_probs(mi, above_mi, left_mi, 0)); 199 } 200 201 mbmi->uv_mode = read_intra_mode(r, vp9_kf_uv_mode_prob[mbmi->mode]); 202 } 203 204 static int read_mv_component(vp9_reader *r, 205 const nmv_component *mvcomp, int usehp) { 206 int mag, d, fr, hp; 207 const int sign = vp9_read(r, mvcomp->sign); 208 const int mv_class = vp9_read_tree(r, vp9_mv_class_tree, mvcomp->classes); 209 const int class0 = mv_class == MV_CLASS_0; 210 211 // Integer part 212 if (class0) { 213 d = vp9_read_tree(r, vp9_mv_class0_tree, mvcomp->class0); 214 } else { 215 int i; 216 const int n = mv_class + CLASS0_BITS - 1; // number of bits 217 218 d = 0; 219 for (i = 0; i < n; ++i) 220 d |= vp9_read(r, mvcomp->bits[i]) << i; 221 } 222 223 // Fractional part 224 fr = vp9_read_tree(r, vp9_mv_fp_tree, class0 ? mvcomp->class0_fp[d] 225 : mvcomp->fp); 226 227 228 // High precision part (if hp is not used, the default value of the hp is 1) 229 hp = usehp ? vp9_read(r, class0 ? mvcomp->class0_hp : mvcomp->hp) 230 : 1; 231 232 // Result 233 mag = vp9_get_mv_mag(mv_class, (d << 3) | (fr << 1) | hp) + 1; 234 return sign ? -mag : mag; 235 } 236 237 static INLINE void read_mv(vp9_reader *r, MV *mv, const MV *ref, 238 const nmv_context *ctx, 239 nmv_context_counts *counts, int allow_hp) { 240 const MV_JOINT_TYPE joint_type = 241 (MV_JOINT_TYPE)vp9_read_tree(r, vp9_mv_joint_tree, ctx->joints); 242 const int use_hp = allow_hp && vp9_use_mv_hp(ref); 243 MV diff = {0, 0}; 244 245 if (mv_joint_vertical(joint_type)) 246 diff.row = read_mv_component(r, &ctx->comps[0], use_hp); 247 248 if (mv_joint_horizontal(joint_type)) 249 diff.col = read_mv_component(r, &ctx->comps[1], use_hp); 250 251 vp9_inc_mv(&diff, counts); 252 253 mv->row = ref->row + diff.row; 254 mv->col = ref->col + diff.col; 255 } 256 257 static REFERENCE_MODE read_block_reference_mode(VP9_COMMON *cm, 258 const MACROBLOCKD *xd, 259 vp9_reader *r) { 260 if (cm->reference_mode == REFERENCE_MODE_SELECT) { 261 const int ctx = vp9_get_reference_mode_context(cm, xd); 262 const REFERENCE_MODE mode = 263 (REFERENCE_MODE)vp9_read(r, cm->fc.comp_inter_prob[ctx]); 264 if (!cm->frame_parallel_decoding_mode) 265 ++cm->counts.comp_inter[ctx][mode]; 266 return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE 267 } else { 268 return cm->reference_mode; 269 } 270 } 271 272 // Read the referncence frame 273 static void read_ref_frames(VP9_COMMON *const cm, MACROBLOCKD *const xd, 274 vp9_reader *r, 275 int segment_id, MV_REFERENCE_FRAME ref_frame[2]) { 276 FRAME_CONTEXT *const fc = &cm->fc; 277 FRAME_COUNTS *const counts = &cm->counts; 278 279 if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { 280 ref_frame[0] = (MV_REFERENCE_FRAME)vp9_get_segdata(&cm->seg, segment_id, 281 SEG_LVL_REF_FRAME); 282 ref_frame[1] = NONE; 283 } else { 284 const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r); 285 // FIXME(rbultje) I'm pretty sure this breaks segmentation ref frame coding 286 if (mode == COMPOUND_REFERENCE) { 287 const int idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref]; 288 const int ctx = vp9_get_pred_context_comp_ref_p(cm, xd); 289 const int bit = vp9_read(r, fc->comp_ref_prob[ctx]); 290 if (!cm->frame_parallel_decoding_mode) 291 ++counts->comp_ref[ctx][bit]; 292 ref_frame[idx] = cm->comp_fixed_ref; 293 ref_frame[!idx] = cm->comp_var_ref[bit]; 294 } else if (mode == SINGLE_REFERENCE) { 295 const int ctx0 = vp9_get_pred_context_single_ref_p1(xd); 296 const int bit0 = vp9_read(r, fc->single_ref_prob[ctx0][0]); 297 if (!cm->frame_parallel_decoding_mode) 298 ++counts->single_ref[ctx0][0][bit0]; 299 if (bit0) { 300 const int ctx1 = vp9_get_pred_context_single_ref_p2(xd); 301 const int bit1 = vp9_read(r, fc->single_ref_prob[ctx1][1]); 302 if (!cm->frame_parallel_decoding_mode) 303 ++counts->single_ref[ctx1][1][bit1]; 304 ref_frame[0] = bit1 ? ALTREF_FRAME : GOLDEN_FRAME; 305 } else { 306 ref_frame[0] = LAST_FRAME; 307 } 308 309 ref_frame[1] = NONE; 310 } else { 311 assert(0 && "Invalid prediction mode."); 312 } 313 } 314 } 315 316 317 static INLINE INTERP_FILTER read_switchable_interp_filter( 318 VP9_COMMON *const cm, MACROBLOCKD *const xd, vp9_reader *r) { 319 const int ctx = vp9_get_pred_context_switchable_interp(xd); 320 const INTERP_FILTER type = 321 (INTERP_FILTER)vp9_read_tree(r, vp9_switchable_interp_tree, 322 cm->fc.switchable_interp_prob[ctx]); 323 if (!cm->frame_parallel_decoding_mode) 324 ++cm->counts.switchable_interp[ctx][type]; 325 return type; 326 } 327 328 static void read_intra_block_mode_info(VP9_COMMON *const cm, MODE_INFO *mi, 329 vp9_reader *r) { 330 MB_MODE_INFO *const mbmi = &mi->mbmi; 331 const BLOCK_SIZE bsize = mi->mbmi.sb_type; 332 int i; 333 334 mbmi->ref_frame[0] = INTRA_FRAME; 335 mbmi->ref_frame[1] = NONE; 336 337 switch (bsize) { 338 case BLOCK_4X4: 339 for (i = 0; i < 4; ++i) 340 mi->bmi[i].as_mode = read_intra_mode_y(cm, r, 0); 341 mbmi->mode = mi->bmi[3].as_mode; 342 break; 343 case BLOCK_4X8: 344 mi->bmi[0].as_mode = mi->bmi[2].as_mode = read_intra_mode_y(cm, r, 0); 345 mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode = 346 read_intra_mode_y(cm, r, 0); 347 break; 348 case BLOCK_8X4: 349 mi->bmi[0].as_mode = mi->bmi[1].as_mode = read_intra_mode_y(cm, r, 0); 350 mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode = 351 read_intra_mode_y(cm, r, 0); 352 break; 353 default: 354 mbmi->mode = read_intra_mode_y(cm, r, size_group_lookup[bsize]); 355 } 356 357 mbmi->uv_mode = read_intra_mode_uv(cm, r, mbmi->mode); 358 } 359 360 static INLINE int is_mv_valid(const MV *mv) { 361 return mv->row > MV_LOW && mv->row < MV_UPP && 362 mv->col > MV_LOW && mv->col < MV_UPP; 363 } 364 365 static INLINE int assign_mv(VP9_COMMON *cm, MB_PREDICTION_MODE mode, 366 int_mv mv[2], int_mv ref_mv[2], 367 int_mv nearest_mv[2], int_mv near_mv[2], 368 int is_compound, int allow_hp, vp9_reader *r) { 369 int i; 370 int ret = 1; 371 372 switch (mode) { 373 case NEWMV: { 374 nmv_context_counts *const mv_counts = cm->frame_parallel_decoding_mode ? 375 NULL : &cm->counts.mv; 376 for (i = 0; i < 1 + is_compound; ++i) { 377 read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, &cm->fc.nmvc, mv_counts, 378 allow_hp); 379 ret = ret && is_mv_valid(&mv[i].as_mv); 380 } 381 break; 382 } 383 case NEARESTMV: { 384 mv[0].as_int = nearest_mv[0].as_int; 385 if (is_compound) 386 mv[1].as_int = nearest_mv[1].as_int; 387 break; 388 } 389 case NEARMV: { 390 mv[0].as_int = near_mv[0].as_int; 391 if (is_compound) 392 mv[1].as_int = near_mv[1].as_int; 393 break; 394 } 395 case ZEROMV: { 396 mv[0].as_int = 0; 397 if (is_compound) 398 mv[1].as_int = 0; 399 break; 400 } 401 default: { 402 return 0; 403 } 404 } 405 return ret; 406 } 407 408 static int read_is_inter_block(VP9_COMMON *const cm, MACROBLOCKD *const xd, 409 int segment_id, vp9_reader *r) { 410 if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { 411 return vp9_get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME) != 412 INTRA_FRAME; 413 } else { 414 const int ctx = vp9_get_intra_inter_context(xd); 415 const int is_inter = vp9_read(r, cm->fc.intra_inter_prob[ctx]); 416 if (!cm->frame_parallel_decoding_mode) 417 ++cm->counts.intra_inter[ctx][is_inter]; 418 return is_inter; 419 } 420 } 421 422 static void read_inter_block_mode_info(VP9_COMMON *const cm, 423 MACROBLOCKD *const xd, 424 const TileInfo *const tile, 425 MODE_INFO *const mi, 426 int mi_row, int mi_col, vp9_reader *r) { 427 MB_MODE_INFO *const mbmi = &mi->mbmi; 428 const BLOCK_SIZE bsize = mbmi->sb_type; 429 const int allow_hp = cm->allow_high_precision_mv; 430 431 int_mv nearestmv[2], nearmv[2]; 432 int inter_mode_ctx, ref, is_compound; 433 434 read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame); 435 is_compound = has_second_ref(mbmi); 436 437 for (ref = 0; ref < 1 + is_compound; ++ref) { 438 const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref]; 439 vp9_find_mv_refs(cm, xd, tile, mi, frame, mbmi->ref_mvs[frame], 440 mi_row, mi_col); 441 } 442 443 inter_mode_ctx = mbmi->mode_context[mbmi->ref_frame[0]]; 444 445 if (vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { 446 mbmi->mode = ZEROMV; 447 if (bsize < BLOCK_8X8) { 448 vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM, 449 "Invalid usage of segement feature on small blocks"); 450 return; 451 } 452 } else { 453 if (bsize >= BLOCK_8X8) 454 mbmi->mode = read_inter_mode(cm, r, inter_mode_ctx); 455 } 456 457 if (bsize < BLOCK_8X8 || mbmi->mode != ZEROMV) { 458 for (ref = 0; ref < 1 + is_compound; ++ref) { 459 vp9_find_best_ref_mvs(xd, allow_hp, mbmi->ref_mvs[mbmi->ref_frame[ref]], 460 &nearestmv[ref], &nearmv[ref]); 461 } 462 } 463 464 mbmi->interp_filter = (cm->interp_filter == SWITCHABLE) 465 ? read_switchable_interp_filter(cm, xd, r) 466 : cm->interp_filter; 467 468 if (bsize < BLOCK_8X8) { 469 const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; // 1 or 2 470 const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; // 1 or 2 471 int idx, idy; 472 MB_PREDICTION_MODE b_mode; 473 int_mv nearest_sub8x8[2], near_sub8x8[2]; 474 for (idy = 0; idy < 2; idy += num_4x4_h) { 475 for (idx = 0; idx < 2; idx += num_4x4_w) { 476 int_mv block[2]; 477 const int j = idy * 2 + idx; 478 b_mode = read_inter_mode(cm, r, inter_mode_ctx); 479 480 if (b_mode == NEARESTMV || b_mode == NEARMV) 481 for (ref = 0; ref < 1 + is_compound; ++ref) 482 vp9_append_sub8x8_mvs_for_idx(cm, xd, tile, j, ref, mi_row, mi_col, 483 &nearest_sub8x8[ref], 484 &near_sub8x8[ref]); 485 486 if (!assign_mv(cm, b_mode, block, nearestmv, 487 nearest_sub8x8, near_sub8x8, 488 is_compound, allow_hp, r)) { 489 xd->corrupted |= 1; 490 break; 491 }; 492 493 mi->bmi[j].as_mv[0].as_int = block[0].as_int; 494 if (is_compound) 495 mi->bmi[j].as_mv[1].as_int = block[1].as_int; 496 497 if (num_4x4_h == 2) 498 mi->bmi[j + 2] = mi->bmi[j]; 499 if (num_4x4_w == 2) 500 mi->bmi[j + 1] = mi->bmi[j]; 501 } 502 } 503 504 mi->mbmi.mode = b_mode; 505 506 mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int; 507 mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int; 508 } else { 509 xd->corrupted |= !assign_mv(cm, mbmi->mode, mbmi->mv, nearestmv, 510 nearestmv, nearmv, is_compound, allow_hp, r); 511 } 512 } 513 514 static void read_inter_frame_mode_info(VP9_COMMON *const cm, 515 MACROBLOCKD *const xd, 516 const TileInfo *const tile, 517 int mi_row, int mi_col, vp9_reader *r) { 518 MODE_INFO *const mi = xd->mi[0]; 519 MB_MODE_INFO *const mbmi = &mi->mbmi; 520 int inter_block; 521 522 mbmi->mv[0].as_int = 0; 523 mbmi->mv[1].as_int = 0; 524 mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, r); 525 mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r); 526 inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r); 527 mbmi->tx_size = read_tx_size(cm, xd, cm->tx_mode, mbmi->sb_type, 528 !mbmi->skip || !inter_block, r); 529 530 if (inter_block) 531 read_inter_block_mode_info(cm, xd, tile, mi, mi_row, mi_col, r); 532 else 533 read_intra_block_mode_info(cm, mi, r); 534 } 535 536 void vp9_read_mode_info(VP9_COMMON *cm, MACROBLOCKD *xd, 537 const TileInfo *const tile, 538 int mi_row, int mi_col, vp9_reader *r) { 539 if (frame_is_intra_only(cm)) 540 read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r); 541 else 542 read_inter_frame_mode_info(cm, xd, tile, mi_row, mi_col, r); 543 } 544
