blockd.h 9.91 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 17 18 19

#include "./vpx_config.h"

#include "vpx_ports/mem.h"
#include "vpx_scale/yv12config.h"

20 21 22 23 24 25 26
#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
27 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 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

#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;

// 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;
  int8_t skip;
  int8_t segment_id;
  int8_t seg_id_predicted;  // valid only when temporal_update is enabled

  // Only for INTRA blocks
  PREDICTION_MODE uv_mode;

  // Only for INTER blocks
  INTERP_FILTER interp_filter;
  MV_REFERENCE_FRAME ref_frame[2];
81 82 83
#if CONFIG_EXT_TX
  EXT_TX_TYPE ext_txfrm;
#endif
Jingning Han's avatar
Jingning Han committed
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223

  // 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];

  // 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;
  int frame_parallel_decoding_mode;

  /* 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];

#if CONFIG_VP9_HIGHBITDEPTH
  /* Bit depth: 8, 10, 12 */
  int bd;
#endif

  int lossless;
  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
};

224 225 226 227 228 229 230 231 232 233 234 235
#if CONFIG_EXT_TX
#define GET_EXT_TX_TYPES(tx_size) \
    ((tx_size) >= TX_32X32 ? 1 : EXT_TX_TYPES)
#define GET_EXT_TX_TREE(tx_size) \
    ((tx_size) >= TX_32X32 ? NULL : vp10_ext_tx_tree)
#define GET_EXT_TX_ENCODINGS(tx_size) \
    ((tx_size) >= TX_32X32 ? NULL : ext_tx_encodings)

static TX_TYPE ext_tx_to_txtype[EXT_TX_TYPES] = {
  DCT_DCT,
  ADST_DCT,
  DCT_ADST,
236
  ADST_ADST,
237 238
  FLIPADST_DCT,
  DCT_FLIPADST,
239 240 241
  FLIPADST_FLIPADST,
  ADST_FLIPADST,
  FLIPADST_ADST,
242 243 244 245 246 247 248
  DST_DST,
  DST_DCT,
  DCT_DST,
  DST_ADST,
  ADST_DST,
  DST_FLIPADST,
  FLIPADST_DST,
249 250 251 252 253 254 255 256 257 258 259 260
};
#endif  // CONFIG_EXT_TX

static INLINE TX_TYPE get_tx_type_large(PLANE_TYPE plane_type,
                                        const MACROBLOCKD *xd) {
  (void) plane_type;
  (void) xd;
  return DCT_DCT;
}

static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
                                  const MACROBLOCKD *xd,
hui su's avatar
hui su committed
261
                                  int block_idx, TX_SIZE tx_size) {
Jingning Han's avatar
Jingning Han committed
262
  const MODE_INFO *const mi = xd->mi[0];
hui su's avatar
hui su committed
263
  const MB_MODE_INFO *const mbmi = &mi->mbmi;
Jingning Han's avatar
Jingning Han committed
264

hui su's avatar
hui su committed
265
#if CONFIG_EXT_TX
266
  if (xd->lossless || tx_size >= TX_32X32)
hui su's avatar
hui su committed
267
    return DCT_DCT;
268
  if (is_inter_block(&mi->mbmi)) {
269
    return ext_tx_to_txtype[mi->mbmi.ext_txfrm];
270
  }
hui su's avatar
hui su committed
271 272 273
  return intra_mode_to_tx_type_lookup[plane_type == PLANE_TYPE_Y ?
      get_y_mode(mi, block_idx) : mbmi->uv_mode];
#else
hui su's avatar
hui su committed
274
  if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(mbmi) ||
hui su's avatar
hui su committed
275
      tx_size >= TX_32X32)
Jingning Han's avatar
Jingning Han committed
276
    return DCT_DCT;
hui su's avatar
hui su committed
277
  return intra_mode_to_tx_type_lookup[get_y_mode(mi, block_idx)];
hui su's avatar
hui su committed
278
#endif  // CONFIG_EXT_TX
Jingning Han's avatar
Jingning Han committed
279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
}

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];
    return MIN(y_tx_size, max_txsize_lookup[plane_bsize]);
  }
}

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]);
  }
}

static INLINE const vpx_prob *get_y_mode_probs(const MODE_INFO *mi,
                                               const MODE_INFO *above_mi,
                                               const MODE_INFO *left_mi,
                                               int block) {
  const PREDICTION_MODE above = vp10_above_block_mode(mi, above_mi, block);
  const PREDICTION_MODE left = vp10_left_block_mode(mi, left_mi, block);
  return vp10_kf_y_mode_prob[above][left];
}

typedef void (*foreach_transformed_block_visitor)(int plane, int block,
                                                  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);

static INLINE void txfrm_block_to_raster_xy(BLOCK_SIZE plane_bsize,
                                            TX_SIZE tx_size, int block,
                                            int *x, int *y) {
  const int bwl = b_width_log2_lookup[plane_bsize];
  const int tx_cols_log2 = bwl - tx_size;
  const int tx_cols = 1 << tx_cols_log2;
  const int raster_mb = block >> (tx_size << 1);
  *x = (raster_mb & (tx_cols - 1)) << tx_size;
  *y = (raster_mb >> tx_cols_log2) << tx_size;
}

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

358
#endif  // VP10_COMMON_BLOCKD_H_