blockd.h 13.8 KB
Newer Older
Jingning Han's avatar
Jingning Han committed
1 2 3 4 5 6 7 8 9 10 11
/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


12 13
#ifndef VP10_COMMON_BLOCKD_H_
#define VP10_COMMON_BLOCKD_H_
Jingning Han's avatar
Jingning Han committed
14 15 16

#include "./vpx_config.h"

17
#include "vpx_dsp/vpx_dsp_common.h"
Jingning Han's avatar
Jingning Han committed
18 19 20
#include "vpx_ports/mem.h"
#include "vpx_scale/yv12config.h"

21 22 23 24 25 26 27
#include "vp10/common/common_data.h"
#include "vp10/common/entropy.h"
#include "vp10/common/entropymode.h"
#include "vp10/common/mv.h"
#include "vp10/common/scale.h"
#include "vp10/common/seg_common.h"
#include "vp10/common/tile_common.h"
Jingning Han's avatar
Jingning Han committed
28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

#ifdef __cplusplus
extern "C" {
#endif

#define MAX_MB_PLANE 3

typedef enum {
  KEY_FRAME = 0,
  INTER_FRAME = 1,
  FRAME_TYPES,
} FRAME_TYPE;

static INLINE int is_inter_mode(PREDICTION_MODE mode) {
  return mode >= NEARESTMV && mode <= NEWMV;
}

/* For keyframes, intra block modes are predicted by the (already decoded)
   modes for the Y blocks to the left and above us; for interframes, there
   is a single probability table. */

typedef struct {
  PREDICTION_MODE as_mode;
  int_mv as_mv[2];  // first, second inter predictor motion vectors
} b_mode_info;

// Note that the rate-distortion optimization loop, bit-stream writer, and
// decoder implementation modules critically rely on the defined entry values
// specified herein. They should be refactored concurrently.

#define NONE           -1
#define INTRA_FRAME     0
#define LAST_FRAME      1
#define GOLDEN_FRAME    2
#define ALTREF_FRAME    3
#define MAX_REF_FRAMES  4
typedef int8_t MV_REFERENCE_FRAME;

hui su's avatar
hui su committed
66 67 68 69 70 71 72 73 74 75 76 77 78 79
typedef struct {
  // Number of base colors for Y (0) and UV (1)
  uint8_t palette_size[2];
  // Value of base colors for Y, U, and V
#if CONFIG_VP9_HIGHBITDEPTH
  uint16_t palette_colors[3 * PALETTE_MAX_SIZE];
#else
  uint8_t palette_colors[3 * PALETTE_MAX_SIZE];
#endif  // CONFIG_VP9_HIGHBITDEPTH
  // Only used by encoder to store the color index of the top left pixel.
  // TODO(huisu): move this to encoder
  uint8_t palette_first_color_idx[2];
} PALETTE_MODE_INFO;

hui su's avatar
hui su committed
80 81 82 83 84 85 86 87 88
#if CONFIG_EXT_INTRA
typedef struct {
  // 1: an ext intra mode is used; 0: otherwise.
  uint8_t use_ext_intra_mode[PLANE_TYPES];
  EXT_INTRA_MODE ext_intra_mode[PLANE_TYPES];
  uint8_t ext_intra_angle[PLANE_TYPES];
} EXT_INTRA_MODE_INFO;
#endif  // CONFIG_EXT_INTRA

Jingning Han's avatar
Jingning Han committed
89 90 91 92 93 94
// This structure now relates to 8x8 block regions.
typedef struct {
  // Common for both INTER and INTRA blocks
  BLOCK_SIZE sb_type;
  PREDICTION_MODE mode;
  TX_SIZE tx_size;
95 96 97 98 99
#if CONFIG_VAR_TX
  // TODO(jingning): This effectively assigned 64 entries for each 8x8 block.
  // Apparently it takes much more space than needed.
  TX_SIZE inter_tx_size[64];
#endif
Jingning Han's avatar
Jingning Han committed
100
  int8_t skip;
101 102 103
#if CONFIG_MISC_FIXES
  int8_t has_no_coeffs;
#endif
Jingning Han's avatar
Jingning Han committed
104 105 106 107 108
  int8_t segment_id;
  int8_t seg_id_predicted;  // valid only when temporal_update is enabled

  // Only for INTRA blocks
  PREDICTION_MODE uv_mode;
hui su's avatar
hui su committed
109
  PALETTE_MODE_INFO palette_mode_info;
Jingning Han's avatar
Jingning Han committed
110 111 112 113

  // Only for INTER blocks
  INTERP_FILTER interp_filter;
  MV_REFERENCE_FRAME ref_frame[2];
114
#if CONFIG_EXT_TX
hui su's avatar
hui su committed
115 116
  TX_TYPE tx_type;
#endif  // CONFIG_EXT_TX
Jingning Han's avatar
Jingning Han committed
117

hui su's avatar
hui su committed
118 119 120 121
#if CONFIG_EXT_INTRA
  EXT_INTRA_MODE_INFO ext_intra_mode_info;
#endif  // CONFIG_EXT_INTRA

Jingning Han's avatar
Jingning Han committed
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
  // TODO(slavarnway): Delete and use bmi[3].as_mv[] instead.
  int_mv mv[2];
} MB_MODE_INFO;

typedef struct MODE_INFO {
  MB_MODE_INFO mbmi;
  b_mode_info bmi[4];
} MODE_INFO;

static INLINE PREDICTION_MODE get_y_mode(const MODE_INFO *mi, int block) {
  return mi->mbmi.sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode
                                      : mi->mbmi.mode;
}

static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) {
  return mbmi->ref_frame[0] > INTRA_FRAME;
}

static INLINE int has_second_ref(const MB_MODE_INFO *mbmi) {
  return mbmi->ref_frame[1] > INTRA_FRAME;
}

PREDICTION_MODE vp10_left_block_mode(const MODE_INFO *cur_mi,
                                    const MODE_INFO *left_mi, int b);

PREDICTION_MODE vp10_above_block_mode(const MODE_INFO *cur_mi,
                                     const MODE_INFO *above_mi, int b);

enum mv_precision {
  MV_PRECISION_Q3,
  MV_PRECISION_Q4
};

struct buf_2d {
  uint8_t *buf;
  int stride;
};

struct macroblockd_plane {
  tran_low_t *dqcoeff;
  PLANE_TYPE plane_type;
  int subsampling_x;
  int subsampling_y;
  struct buf_2d dst;
  struct buf_2d pre[2];
  ENTROPY_CONTEXT *above_context;
  ENTROPY_CONTEXT *left_context;
  int16_t seg_dequant[MAX_SEGMENTS][2];
hui su's avatar
hui su committed
170
  uint8_t *color_index_map;
Jingning Han's avatar
Jingning Han committed
171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231

  // number of 4x4s in current block
  uint16_t n4_w, n4_h;
  // log2 of n4_w, n4_h
  uint8_t n4_wl, n4_hl;

  // encoder
  const int16_t *dequant;
};

#define BLOCK_OFFSET(x, i) ((x) + (i) * 16)

typedef struct RefBuffer {
  // TODO(dkovalev): idx is not really required and should be removed, now it
  // is used in vp10_onyxd_if.c
  int idx;
  YV12_BUFFER_CONFIG *buf;
  struct scale_factors sf;
} RefBuffer;

typedef struct macroblockd {
  struct macroblockd_plane plane[MAX_MB_PLANE];
  uint8_t bmode_blocks_wl;
  uint8_t bmode_blocks_hl;

  FRAME_COUNTS *counts;
  TileInfo tile;

  int mi_stride;

  MODE_INFO **mi;
  MODE_INFO *left_mi;
  MODE_INFO *above_mi;
  MB_MODE_INFO *left_mbmi;
  MB_MODE_INFO *above_mbmi;

  int up_available;
  int left_available;

  const vpx_prob (*partition_probs)[PARTITION_TYPES - 1];

  /* Distance of MB away from frame edges */
  int mb_to_left_edge;
  int mb_to_right_edge;
  int mb_to_top_edge;
  int mb_to_bottom_edge;

  FRAME_CONTEXT *fc;

  /* pointers to reference frames */
  RefBuffer *block_refs[2];

  /* pointer to current frame */
  const YV12_BUFFER_CONFIG *cur_buf;

  ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
  ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16];

  PARTITION_CONTEXT *above_seg_context;
  PARTITION_CONTEXT left_seg_context[8];

232 233 234 235
#if CONFIG_VAR_TX
  TXFM_CONTEXT *above_txfm_context;
  TXFM_CONTEXT *left_txfm_context;
  TXFM_CONTEXT left_txfm_context_buffer[8];
236 237 238

  // dimension in the unit of 8x8 block of the current block
  int16_t n8_w, n8_h;
239
  TX_SIZE max_tx_size;
240 241
#endif

Jingning Han's avatar
Jingning Han committed
242 243 244 245 246
#if CONFIG_VP9_HIGHBITDEPTH
  /* Bit depth: 8, 10, 12 */
  int bd;
#endif

247
  int lossless[MAX_SEGMENTS];
Jingning Han's avatar
Jingning Han committed
248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
  int corrupted;

  struct vpx_internal_error_info *error_info;
} MACROBLOCKD;

static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
                                     PARTITION_TYPE partition) {
  return subsize_lookup[partition][bsize];
}

static const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES] = {
  DCT_DCT,    // DC
  ADST_DCT,   // V
  DCT_ADST,   // H
  DCT_DCT,    // D45
  ADST_ADST,  // D135
  ADST_DCT,   // D117
  DCT_ADST,   // D153
  DCT_ADST,   // D207
  ADST_DCT,   // D63
  ADST_ADST,  // TM
};

271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322
#if CONFIG_EXT_TX
static const int num_ext_tx_set_inter[EXT_TX_SETS_INTER] = {
  1, 17, 10, 2
};
static const int num_ext_tx_set_intra[EXT_TX_SETS_INTRA] = {
  1, 17,
};

#define USE_IDTX_FOR_32X32 0
static INLINE int get_ext_tx_set(TX_SIZE tx_size, BLOCK_SIZE bs,
                                 int is_inter) {
  (void) is_inter;
  if (tx_size > TX_32X32 || bs < BLOCK_8X8) return 0;
#if USE_IDTX_FOR_32X32
  if (tx_size == TX_32X32) return is_inter ? 3 : 0;
#else
  if (tx_size == TX_32X32) return 0;
#endif
  return 1;
}

static INLINE int get_ext_tx_types(TX_SIZE tx_size, BLOCK_SIZE bs,
                                   int is_inter) {
  const int set = get_ext_tx_set(tx_size, bs, is_inter);
  return is_inter ? num_ext_tx_set_inter[set] : num_ext_tx_set_intra[set];
}

static const int use_intra_ext_tx_for_tx[EXT_TX_SETS_INTRA][TX_SIZES] = {
  { 0, 0, 0, 0, },  // unused
  { 1, 1, 1, 0, },
};

static const int use_inter_ext_tx_for_tx[EXT_TX_SETS_INTER][TX_SIZES] = {
  { 0, 0, 0, 0, },  // unused
  { 1, 1, 1, 0, },
  { 0, 0, 0, 0, },
  { 0, 0, 0, USE_IDTX_FOR_32X32, },
};

static const int ext_tx_used_intra[EXT_TX_SETS_INTRA][TX_TYPES] = {
  { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
  { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, },
};

static const int ext_tx_used_inter[EXT_TX_SETS_INTER][TX_TYPES] = {
  { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
  { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, },
  { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, },
  { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, },
};
#endif  // CONFIG_EXT_TX

hui su's avatar
hui su committed
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353
#if CONFIG_EXT_INTRA
// 0: use both directional and filter modes; 1: use directional modes only.
#define DR_ONLY 0
// 0: use slow exhaustive search; 1: use fast sub-optimal search.
#define ANGLE_FAST_SEARCH 1
// A parameter to adjust early termination in the fast search of angles.
#define RD_ADJUSTER 1.4
// Number of different angles that are supported
#define EXT_INTRA_ANGLES 128

static const TX_TYPE filter_intra_mode_to_tx_type_lookup[FILTER_INTRA_MODES] = {
  DCT_DCT,    // FILTER_DC
  ADST_DCT,   // FILTER_V
  DCT_ADST,   // FILTER_H
  DCT_DCT,    // FILTER_D45
  ADST_ADST,  // FILTER_D135
  ADST_DCT,   // FILTER_D117
  DCT_ADST,   // FILTER_D153
  DCT_ADST,   // FILTER_D207
  ADST_DCT,   // FILTER_D63
  ADST_ADST,  // FILTER_TM
};

// Maps the angle index to the actual prediction angle (in degrees).
// Angle index is in the range [0, EXT_INTRA_ANGLES); the actual prediction
// angle is in the range (0, 270).
static INLINE int prediction_angle_map(int angle_in) {
  return (10 + 2 * angle_in);
}
#endif  // CONFIG_EXT_INTRA

354 355
static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
                                  const MACROBLOCKD *xd,
hui su's avatar
hui su committed
356
                                  int block_idx, TX_SIZE tx_size) {
Jingning Han's avatar
Jingning Han committed
357
  const MODE_INFO *const mi = xd->mi[0];
hui su's avatar
hui su committed
358
  const MB_MODE_INFO *const mbmi = &mi->mbmi;
hui su's avatar
hui su committed
359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388
#if CONFIG_EXT_INTRA
  const int use_ext_intra_mode_info =
      mbmi->ext_intra_mode_info.use_ext_intra_mode[plane_type];
  const EXT_INTRA_MODE ext_intra_mode =
      mbmi->ext_intra_mode_info.ext_intra_mode[plane_type];

  if (!is_inter_block(mbmi) && use_ext_intra_mode_info) {
    if (!xd->lossless[mbmi->segment_id] && tx_size < TX_32X32
#if CONFIG_EXT_TX
        && !(mbmi->sb_type >= BLOCK_8X8 && plane_type == PLANE_TYPE_Y)
#endif  // CONFIG_EXT_TX
    ) {
      if (ext_intra_mode > FILTER_TM_PRED) {
        int angle = mbmi->ext_intra_mode_info.ext_intra_angle[plane_type];
        angle = prediction_angle_map(angle);
        assert(angle > 0 && angle < 270);
        if (angle == 135)
          return ADST_ADST;
        else if (angle < 45 || angle > 225)
          return DCT_DCT;
        else if (angle < 135)
          return ADST_DCT;
        else
          return DCT_ADST;
      } else {
        return filter_intra_mode_to_tx_type_lookup[ext_intra_mode];
      }
    }
  }
#endif  // CONFIG_EXT_INTRA
Jingning Han's avatar
Jingning Han committed
389

hui su's avatar
hui su committed
390
#if CONFIG_EXT_TX
391 392 393 394 395 396
#if USE_IDTX_FOR_32X32
  if (xd->lossless[mbmi->segment_id] || tx_size > TX_32X32 ||
      (tx_size >= TX_32X32 && !is_inter_block(mbmi)))
#else
  if (xd->lossless[mbmi->segment_id] || tx_size >= TX_32X32)
#endif
hui su's avatar
hui su committed
397
    return DCT_DCT;
398
  if (mbmi->sb_type >= BLOCK_8X8) {
399
    if (plane_type == PLANE_TYPE_Y)
hui su's avatar
hui su committed
400
      return mbmi->tx_type;
401 402 403 404
    if (is_inter_block(mbmi))
      // UV Inter only
      return (mbmi->tx_type == IDTX && tx_size == TX_32X32 ?
              DCT_DCT : mbmi->tx_type);
405
  }
406

407 408
  // Sub8x8-Inter/Intra OR UV-Intra
  if (is_inter_block(mbmi))  // Sub8x8-Inter
409
    return DCT_DCT;
410
  else  // Sub8x8 Intra OR UV-Intra
411 412
    return intra_mode_to_tx_type_lookup[plane_type == PLANE_TYPE_Y ?
        get_y_mode(mi, block_idx) : mbmi->uv_mode];
hui su's avatar
hui su committed
413
#else
414 415
  if (plane_type != PLANE_TYPE_Y || xd->lossless[mbmi->segment_id] ||
       is_inter_block(mbmi) || tx_size >= TX_32X32)
Jingning Han's avatar
Jingning Han committed
416
    return DCT_DCT;
hui su's avatar
hui su committed
417
  return intra_mode_to_tx_type_lookup[get_y_mode(mi, block_idx)];
hui su's avatar
hui su committed
418
#endif  // CONFIG_EXT_TX
Jingning Han's avatar
Jingning Han committed
419 420 421 422 423 424 425 426 427 428
}

void vp10_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y);

static INLINE TX_SIZE get_uv_tx_size_impl(TX_SIZE y_tx_size, BLOCK_SIZE bsize,
                                          int xss, int yss) {
  if (bsize < BLOCK_8X8) {
    return TX_4X4;
  } else {
    const BLOCK_SIZE plane_bsize = ss_size_lookup[bsize][xss][yss];
429
    return VPXMIN(y_tx_size, max_txsize_lookup[plane_bsize]);
Jingning Han's avatar
Jingning Han committed
430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456
  }
}

static INLINE TX_SIZE get_uv_tx_size(const MB_MODE_INFO *mbmi,
                                     const struct macroblockd_plane *pd) {
  return get_uv_tx_size_impl(mbmi->tx_size, mbmi->sb_type, pd->subsampling_x,
                             pd->subsampling_y);
}

static INLINE BLOCK_SIZE get_plane_block_size(BLOCK_SIZE bsize,
    const struct macroblockd_plane *pd) {
  return ss_size_lookup[bsize][pd->subsampling_x][pd->subsampling_y];
}

static INLINE void reset_skip_context(MACROBLOCKD *xd, BLOCK_SIZE bsize) {
  int i;
  for (i = 0; i < MAX_MB_PLANE; i++) {
    struct macroblockd_plane *const pd = &xd->plane[i];
    const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
    memset(pd->above_context, 0,
           sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide_lookup[plane_bsize]);
    memset(pd->left_context, 0,
           sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high_lookup[plane_bsize]);
  }
}

typedef void (*foreach_transformed_block_visitor)(int plane, int block,
457
                                                  int blk_row, int blk_col,
Jingning Han's avatar
Jingning Han committed
458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
                                                  BLOCK_SIZE plane_bsize,
                                                  TX_SIZE tx_size,
                                                  void *arg);

void vp10_foreach_transformed_block_in_plane(
    const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane,
    foreach_transformed_block_visitor visit, void *arg);

void vp10_foreach_transformed_block(
    const MACROBLOCKD* const xd, BLOCK_SIZE bsize,
    foreach_transformed_block_visitor visit, void *arg);

void vp10_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
                      BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob,
                      int aoff, int loff);

#ifdef __cplusplus
}  // extern "C"
#endif

478
#endif  // VP10_COMMON_BLOCKD_H_