blockd.h 42.7 KB
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/*
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 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
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 *
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 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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 */

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#ifndef AV1_COMMON_BLOCKD_H_
#define AV1_COMMON_BLOCKD_H_
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#include "./aom_config.h"
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_ports/mem.h"
#include "aom_scale/yv12config.h"

#include "av1/common/common_data.h"
#include "av1/common/quant_common.h"
#include "av1/common/entropy.h"
#include "av1/common/entropymode.h"
#include "av1/common/mv.h"
#include "av1/common/scale.h"
#include "av1/common/seg_common.h"
#include "av1/common/tile_common.h"
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#if CONFIG_PVQ
#include "av1/common/pvq.h"
#include "av1/common/pvq_state.h"
#include "av1/decoder/decint.h"
#endif
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#if CONFIG_CFL
#include "av1/common/cfl.h"
#endif
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#ifdef __cplusplus
extern "C" {
#endif

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#if (CONFIG_CHROMA_SUB8X8 || CONFIG_CHROMA_2X2)
#define SUB8X8_COMP_REF 0
#else
#define SUB8X8_COMP_REF 1
#endif
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#define MAX_MB_PLANE 3

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#if CONFIG_EXT_INTER
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#if CONFIG_COMPOUND_SEGMENT
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// Set COMPOUND_SEGMENT_TYPE to one of the three
// 0: Uniform
// 1: Difference weighted
#define COMPOUND_SEGMENT_TYPE 1
#define MAX_SEG_MASK_BITS 1
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// SEG_MASK_TYPES should not surpass 1 << MAX_SEG_MASK_BITS
typedef enum {
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#if COMPOUND_SEGMENT_TYPE == 0
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  UNIFORM_45 = 0,
  UNIFORM_45_INV,
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#elif COMPOUND_SEGMENT_TYPE == 1
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  DIFFWTD_38 = 0,
  DIFFWTD_38_INV,
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#endif  // COMPOUND_SEGMENT_TYPE
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  SEG_MASK_TYPES,
} SEG_MASK_TYPE;

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#endif  // CONFIG_COMPOUND_SEGMENT
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#endif  // CONFIG_EXT_INTER
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typedef enum {
  KEY_FRAME = 0,
  INTER_FRAME = 1,
  FRAME_TYPES,
} FRAME_TYPE;

static INLINE int is_inter_mode(PREDICTION_MODE mode) {
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#if CONFIG_EXT_INTER
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  return mode >= NEARESTMV && mode <= NEW_NEWMV;
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#else
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  return mode >= NEARESTMV && mode <= NEWMV;
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#endif  // CONFIG_EXT_INTER
}

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#if CONFIG_PVQ
typedef struct PVQ_INFO {
  int theta[PVQ_MAX_PARTITIONS];
  int qg[PVQ_MAX_PARTITIONS];
  int k[PVQ_MAX_PARTITIONS];
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  od_coeff y[OD_TXSIZE_MAX * OD_TXSIZE_MAX];
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  int nb_bands;
  int off[PVQ_MAX_PARTITIONS];
  int size[PVQ_MAX_PARTITIONS];
  int skip_rest;
  int skip_dir;
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  int bs;  // log of the block size minus two,
           // i.e. equivalent to aom's TX_SIZE
  // Block skip info, indicating whether DC/AC, is coded.
  PVQ_SKIP_TYPE ac_dc_coded;  // bit0: DC coded, bit1 : AC coded (1 means coded)
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  tran_low_t dq_dc_residue;
} PVQ_INFO;

typedef struct PVQ_QUEUE {
  PVQ_INFO *buf;  // buffer for pvq info, stored in encoding order
  int curr_pos;   // curr position to write PVQ_INFO
  int buf_len;    // allocated buffer length
  int last_pos;   // last written position of PVQ_INFO in a tile
} PVQ_QUEUE;
#endif

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typedef struct {
  uint8_t *plane[MAX_MB_PLANE];
  int stride[MAX_MB_PLANE];
} BUFFER_SET;

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#if CONFIG_EXT_INTER
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static INLINE int is_inter_singleref_mode(PREDICTION_MODE mode) {
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  return mode >= NEARESTMV && mode <= NEWMV;
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}
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#if CONFIG_COMPOUND_SINGLEREF
static INLINE int is_inter_singleref_comp_mode(PREDICTION_MODE mode) {
  return mode >= SR_NEAREST_NEARMV && mode <= SR_NEW_NEWMV;
}
#endif  // CONFIG_COMPOUND_SINGLEREF
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static INLINE int is_inter_compound_mode(PREDICTION_MODE mode) {
  return mode >= NEAREST_NEARESTMV && mode <= NEW_NEWMV;
}

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static INLINE PREDICTION_MODE compound_ref0_mode(PREDICTION_MODE mode) {
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  static PREDICTION_MODE lut[] = {
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    MB_MODE_COUNT,  // DC_PRED
    MB_MODE_COUNT,  // V_PRED
    MB_MODE_COUNT,  // H_PRED
    MB_MODE_COUNT,  // D45_PRED
    MB_MODE_COUNT,  // D135_PRED
    MB_MODE_COUNT,  // D117_PRED
    MB_MODE_COUNT,  // D153_PRED
    MB_MODE_COUNT,  // D207_PRED
    MB_MODE_COUNT,  // D63_PRED
#if CONFIG_ALT_INTRA
    MB_MODE_COUNT,  // SMOOTH_PRED
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#if CONFIG_SMOOTH_HV
    MB_MODE_COUNT,  // SMOOTH_V_PRED
    MB_MODE_COUNT,  // SMOOTH_H_PRED
#endif              // CONFIG_SMOOTH_HV
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#endif              // CONFIG_ALT_INTRA
    MB_MODE_COUNT,  // TM_PRED
    MB_MODE_COUNT,  // NEARESTMV
    MB_MODE_COUNT,  // NEARMV
    MB_MODE_COUNT,  // ZEROMV
    MB_MODE_COUNT,  // NEWMV
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#if CONFIG_COMPOUND_SINGLEREF
    NEARESTMV,  // SR_NEAREST_NEARMV
    NEARESTMV,  // SR_NEAREST_NEWMV
    NEARMV,     // SR_NEAR_NEWMV
    ZEROMV,     // SR_ZERO_NEWMV
    NEWMV,      // SR_NEW_NEWMV
#endif          // CONFIG_COMPOUND_SINGLEREF
    NEARESTMV,  // NEAREST_NEARESTMV
    NEARMV,     // NEAR_NEARMV
    NEARESTMV,  // NEAREST_NEWMV
    NEWMV,      // NEW_NEARESTMV
    NEARMV,     // NEAR_NEWMV
    NEWMV,      // NEW_NEARMV
    ZEROMV,     // ZERO_ZEROMV
    NEWMV,      // NEW_NEWMV
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  };
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  assert(NELEMENTS(lut) == MB_MODE_COUNT);
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  assert(is_inter_compound_mode(mode));
  return lut[mode];
}

static INLINE PREDICTION_MODE compound_ref1_mode(PREDICTION_MODE mode) {
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  static PREDICTION_MODE lut[] = {
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    MB_MODE_COUNT,  // DC_PRED
    MB_MODE_COUNT,  // V_PRED
    MB_MODE_COUNT,  // H_PRED
    MB_MODE_COUNT,  // D45_PRED
    MB_MODE_COUNT,  // D135_PRED
    MB_MODE_COUNT,  // D117_PRED
    MB_MODE_COUNT,  // D153_PRED
    MB_MODE_COUNT,  // D207_PRED
    MB_MODE_COUNT,  // D63_PRED
#if CONFIG_ALT_INTRA
    MB_MODE_COUNT,  // SMOOTH_PRED
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#if CONFIG_SMOOTH_HV
    MB_MODE_COUNT,  // SMOOTH_V_PRED
    MB_MODE_COUNT,  // SMOOTH_H_PRED
#endif              // CONFIG_SMOOTH_HV
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#endif              // CONFIG_ALT_INTRA
    MB_MODE_COUNT,  // TM_PRED
    MB_MODE_COUNT,  // NEARESTMV
    MB_MODE_COUNT,  // NEARMV
    MB_MODE_COUNT,  // ZEROMV
    MB_MODE_COUNT,  // NEWMV
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#if CONFIG_COMPOUND_SINGLEREF
    NEARMV,     // SR_NEAREST_NEARMV
    NEWMV,      // SR_NEAREST_NEWMV
    NEWMV,      // SR_NEAR_NEWMV
    NEWMV,      // SR_ZERO_NEWMV
    NEWMV,      // SR_NEW_NEWMV
#endif          // CONFIG_COMPOUND_SINGLEREF
    NEARESTMV,  // NEAREST_NEARESTMV
    NEARMV,     // NEAR_NEARMV
    NEWMV,      // NEAREST_NEWMV
    NEARESTMV,  // NEW_NEARESTMV
    NEWMV,      // NEAR_NEWMV
    NEARMV,     // NEW_NEARMV
    ZEROMV,     // ZERO_ZEROMV
    NEWMV,      // NEW_NEWMV
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  };
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  assert(NELEMENTS(lut) == MB_MODE_COUNT);
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  assert(is_inter_compound_mode(mode));
  return lut[mode];
}

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static INLINE int have_nearmv_in_inter_mode(PREDICTION_MODE mode) {
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  return (mode == NEARMV || mode == NEAR_NEARMV || mode == NEAR_NEWMV ||
          mode == NEW_NEARMV);
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}

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static INLINE int have_newmv_in_inter_mode(PREDICTION_MODE mode) {
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  return (mode == NEWMV || mode == NEW_NEWMV || mode == NEAREST_NEWMV ||
          mode == NEW_NEARESTMV || mode == NEAR_NEWMV || mode == NEW_NEARMV);
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}
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static INLINE int use_masked_motion_search(COMPOUND_TYPE type) {
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#if CONFIG_WEDGE
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  return (type == COMPOUND_WEDGE);
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#else
  (void)type;
  return 0;
#endif
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}

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static INLINE int is_masked_compound_type(COMPOUND_TYPE type) {
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#if CONFIG_COMPOUND_SEGMENT && CONFIG_WEDGE
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  return (type == COMPOUND_WEDGE || type == COMPOUND_SEG);
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#elif !CONFIG_COMPOUND_SEGMENT && CONFIG_WEDGE
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  return (type == COMPOUND_WEDGE);
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#elif CONFIG_COMPOUND_SEGMENT && !CONFIG_WEDGE
  return (type == COMPOUND_SEG);
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#endif  // CONFIG_COMPOUND_SEGMENT
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  (void)type;
  return 0;
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}
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#else

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static INLINE int have_nearmv_in_inter_mode(PREDICTION_MODE mode) {
  return (mode == NEARMV);
}

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static INLINE int have_newmv_in_inter_mode(PREDICTION_MODE mode) {
  return (mode == NEWMV);
}
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#endif  // CONFIG_EXT_INTER
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/* 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
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  int_mv pred_mv[2];
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#if CONFIG_EXT_INTER
  int_mv ref_mv[2];
#endif  // CONFIG_EXT_INTER
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} b_mode_info;

typedef int8_t MV_REFERENCE_FRAME;

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#if CONFIG_PALETTE
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typedef struct {
  // Number of base colors for Y (0) and UV (1)
  uint8_t palette_size[2];
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  // Value of base colors for Y, U, and V
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  uint16_t palette_colors[3 * PALETTE_MAX_SIZE];
  // 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;
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#endif  // CONFIG_PALETTE
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#if CONFIG_FILTER_INTRA
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#define USE_3TAP_INTRA_FILTER 1  // 0: 4-tap; 1: 3-tap
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typedef struct {
  // 1: an ext intra mode is used; 0: otherwise.
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  uint8_t use_filter_intra_mode[PLANE_TYPES];
  FILTER_INTRA_MODE filter_intra_mode[PLANE_TYPES];
} FILTER_INTRA_MODE_INFO;
#endif  // CONFIG_FILTER_INTRA
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#if CONFIG_VAR_TX
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#if CONFIG_RD_DEBUG
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#define TXB_COEFF_COST_MAP_SIZE (2 * MAX_MIB_SIZE)
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#endif
#endif
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typedef struct RD_STATS {
  int rate;
  int64_t dist;
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  // Please be careful of using rdcost, it's not guaranteed to be set all the
  // time.
  // TODO(angiebird): Create a set of functions to manipulate the RD_STATS. In
  // these functions, make sure rdcost is always up-to-date according to
  // rate/dist.
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  int64_t rdcost;
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  int64_t sse;
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  int skip;  // sse should equal to dist when skip == 1
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#if CONFIG_RD_DEBUG
  int txb_coeff_cost[MAX_MB_PLANE];
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#if CONFIG_VAR_TX
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  int txb_coeff_cost_map[MAX_MB_PLANE][TXB_COEFF_COST_MAP_SIZE]
                        [TXB_COEFF_COST_MAP_SIZE];
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#endif  // CONFIG_VAR_TX
#endif  // CONFIG_RD_DEBUG
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} RD_STATS;

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#if CONFIG_EXT_INTER
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// This struct is used to group function args that are commonly
// sent together in functions related to interinter compound modes
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typedef struct {
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#if CONFIG_WEDGE
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  int wedge_index;
  int wedge_sign;
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#endif  // CONFIG_WEDGE
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#if CONFIG_COMPOUND_SEGMENT
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  SEG_MASK_TYPE mask_type;
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  uint8_t *seg_mask;
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#endif  // CONFIG_COMPOUND_SEGMENT
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  COMPOUND_TYPE interinter_compound_type;
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} INTERINTER_COMPOUND_DATA;
#endif  // CONFIG_EXT_INTER

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// This structure now relates to 8x8 block regions.
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typedef struct MB_MODE_INFO {
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  // Common for both INTER and INTRA blocks
  BLOCK_SIZE sb_type;
  PREDICTION_MODE mode;
  TX_SIZE tx_size;
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#if CONFIG_VAR_TX
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  // TODO(jingning): This effectively assigned a separate entry for each
  // 8x8 block. Apparently it takes much more space than needed.
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  TX_SIZE inter_tx_size[MAX_MIB_SIZE][MAX_MIB_SIZE];
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  TX_SIZE min_tx_size;
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#endif
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  int8_t skip;
  int8_t segment_id;
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#if CONFIG_SUPERTX
  // Minimum of all segment IDs under the current supertx block.
  int8_t segment_id_supertx;
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#endif                      // CONFIG_SUPERTX
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  int8_t seg_id_predicted;  // valid only when temporal_update is enabled

  // Only for INTRA blocks
  PREDICTION_MODE uv_mode;
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#if CONFIG_PALETTE
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  PALETTE_MODE_INFO palette_mode_info;
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#endif  // CONFIG_PALETTE
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#if CONFIG_INTRABC
  uint8_t use_intrabc;
#endif  // CONFIG_INTRABC
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// Only for INTER blocks
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#if CONFIG_DUAL_FILTER
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  InterpFilter interp_filter[4];
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#else
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  InterpFilter interp_filter;
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#endif
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  MV_REFERENCE_FRAME ref_frame[2];
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  TX_TYPE tx_type;
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#if CONFIG_TXK_SEL
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  TX_TYPE txk_type[MAX_SB_SQUARE / (TX_SIZE_W_MIN * TX_SIZE_H_MIN)];
#endif
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#if CONFIG_FILTER_INTRA
  FILTER_INTRA_MODE_INFO filter_intra_mode_info;
#endif  // CONFIG_FILTER_INTRA
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#if CONFIG_EXT_INTRA
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  // The actual prediction angle is the base angle + (angle_delta * step).
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  int8_t angle_delta[2];
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#if CONFIG_INTRA_INTERP
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  // To-Do (huisu): this may be replaced by interp_filter
  INTRA_FILTER intra_filter;
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#endif  // CONFIG_INTRA_INTERP
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#endif  // CONFIG_EXT_INTRA

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#if CONFIG_EXT_INTER
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#if CONFIG_INTERINTRA
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  // interintra members
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  INTERINTRA_MODE interintra_mode;
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#endif
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  // TODO(debargha): Consolidate these flags
  int use_wedge_interintra;
  int interintra_wedge_index;
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  int interintra_wedge_sign;
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  // interinter members
  COMPOUND_TYPE interinter_compound_type;
#if CONFIG_WEDGE
  int wedge_index;
  int wedge_sign;
#endif  // CONFIG_WEDGE
#if CONFIG_COMPOUND_SEGMENT
  SEG_MASK_TYPE mask_type;
#endif  // CONFIG_COMPOUND_SEGMENT
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#endif  // CONFIG_EXT_INTER
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  MOTION_MODE motion_mode;
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#if CONFIG_MOTION_VAR
  int overlappable_neighbors[2];
#endif  // CONFIG_MOTION_VAR
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  int_mv mv[2];
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  int_mv pred_mv[2];
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  uint8_t ref_mv_idx;
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#if CONFIG_EXT_PARTITION_TYPES
  PARTITION_TYPE partition;
#endif
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#if CONFIG_NEW_QUANT
  int dq_off_index;
  int send_dq_bit;
#endif  // CONFIG_NEW_QUANT
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  /* deringing gain *per-superblock* */
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  int8_t cdef_strength;
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#if CONFIG_DELTA_Q
  int current_q_index;
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#if CONFIG_EXT_DELTA_Q
  int current_delta_lf_from_base;
#endif
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#endif
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#if CONFIG_RD_DEBUG
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  RD_STATS rd_stats;
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  int mi_row;
  int mi_col;
#endif
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#if CONFIG_WARPED_MOTION
  int num_proj_ref[2];
  WarpedMotionParams wm_params[2];
#endif  // CONFIG_WARPED_MOTION
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#if CONFIG_CFL
  // Index of the alpha Cb and alpha Cr combination
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  int cfl_alpha_idx;
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  // Signs of alpha Cb and alpha Cr
  CFL_SIGN_TYPE cfl_alpha_signs[CFL_PRED_PLANES];
#endif

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  BOUNDARY_TYPE boundary_info;
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} MB_MODE_INFO;

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

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#if CONFIG_INTRABC
static INLINE int is_intrabc_block(const MB_MODE_INFO *mbmi) {
  return mbmi->use_intrabc;
}
#endif

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static INLINE PREDICTION_MODE get_y_mode(const MODE_INFO *mi, int block) {
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#if CONFIG_CB4X4
  (void)block;
  return mi->mbmi.mode;
#else
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  return mi->mbmi.sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode : mi->mbmi.mode;
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#endif
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}

static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) {
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#if CONFIG_INTRABC
  if (is_intrabc_block(mbmi)) return 1;
#endif
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  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;
}

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PREDICTION_MODE av1_left_block_mode(const MODE_INFO *cur_mi,
                                    const MODE_INFO *left_mi, int b);
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PREDICTION_MODE av1_above_block_mode(const MODE_INFO *cur_mi,
                                     const MODE_INFO *above_mi, int b);
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#if CONFIG_GLOBAL_MOTION
static INLINE int is_global_mv_block(const MODE_INFO *mi, int block,
                                     TransformationType type) {
  PREDICTION_MODE mode = get_y_mode(mi, block);
#if GLOBAL_SUB8X8_USED
  const int block_size_allowed = 1;
#else
  const BLOCK_SIZE bsize = mi->mbmi.sb_type;
  const int block_size_allowed = (bsize >= BLOCK_8X8);
#endif  // GLOBAL_SUB8X8_USED
#if CONFIG_EXT_INTER
  return (mode == ZEROMV || mode == ZERO_ZEROMV) && type > TRANSLATION &&
         block_size_allowed;
#else
  return mode == ZEROMV && type > TRANSLATION && block_size_allowed;
#endif  // CONFIG_EXT_INTER
}
#endif  // CONFIG_GLOBAL_MOTION

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enum mv_precision { MV_PRECISION_Q3, MV_PRECISION_Q4 };
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struct buf_2d {
  uint8_t *buf;
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  uint8_t *buf0;
  int width;
  int height;
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  int stride;
};

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typedef struct macroblockd_plane {
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  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];
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#if CONFIG_NEW_QUANT
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  dequant_val_type_nuq seg_dequant_nuq[MAX_SEGMENTS][QUANT_PROFILES]
                                      [COEF_BANDS];
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#endif
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#if CONFIG_PALETTE
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  uint8_t *color_index_map;
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#endif  // CONFIG_PALETTE
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  // number of 4x4s in current block
  uint16_t n4_w, n4_h;
  // log2 of n4_w, n4_h
  uint8_t n4_wl, n4_hl;
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  // block size in pixels
  uint8_t width, height;
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#if CONFIG_AOM_QM
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  const qm_val_t *seg_iqmatrix[MAX_SEGMENTS][2][TX_SIZES_ALL];
  const qm_val_t *seg_qmatrix[MAX_SEGMENTS][2][TX_SIZES_ALL];
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#endif
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  // encoder
  const int16_t *dequant;
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#if CONFIG_NEW_QUANT
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  const dequant_val_type_nuq *dequant_val_nuq[QUANT_PROFILES];
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#endif  // CONFIG_NEW_QUANT
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#if CONFIG_PVQ || CONFIG_DAALA_DIST
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  DECLARE_ALIGNED(16, int16_t, pred[MAX_SB_SQUARE]);
  // PVQ: forward transformed predicted image, a reference for PVQ.
  tran_low_t *pvq_ref_coeff;
#endif
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} MACROBLOCKD_PLANE;
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#define BLOCK_OFFSET(x, i) \
  ((x) + (i) * (1 << (tx_size_wide_log2[0] + tx_size_high_log2[0])))
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typedef struct RefBuffer {
  int idx;
  YV12_BUFFER_CONFIG *buf;
  struct scale_factors sf;
} RefBuffer;

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#if CONFIG_ADAPT_SCAN
typedef int16_t EobThresholdMD[TX_TYPES][EOB_THRESHOLD_NUM];
#endif
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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;
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#if CONFIG_CHROMA_SUB8X8
  int chroma_up_available;
  int chroma_left_available;
#endif
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  const aom_prob (*partition_probs)[PARTITION_TYPES - 1];
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  /* 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 */
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  const RefBuffer *block_refs[2];
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  /* pointer to current frame */
  const YV12_BUFFER_CONFIG *cur_buf;

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#if CONFIG_INTRABC
  /* Scale of the current frame with respect to itself */
  struct scale_factors sf_identity;
#endif

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  ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
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  ENTROPY_CONTEXT left_context[MAX_MB_PLANE][2 * MAX_MIB_SIZE];
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  PARTITION_CONTEXT *above_seg_context;
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  PARTITION_CONTEXT left_seg_context[MAX_MIB_SIZE];
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#if CONFIG_VAR_TX
  TXFM_CONTEXT *above_txfm_context;
  TXFM_CONTEXT *left_txfm_context;
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  TXFM_CONTEXT left_txfm_context_buffer[2 * MAX_MIB_SIZE];
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  TX_SIZE max_tx_size;
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#if CONFIG_SUPERTX
  TX_SIZE supertx_size;
#endif
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#endif

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  // block dimension in the unit of mode_info.
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  uint8_t n8_w, n8_h;

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  uint8_t ref_mv_count[MODE_CTX_REF_FRAMES];
  CANDIDATE_MV ref_mv_stack[MODE_CTX_REF_FRAMES][MAX_REF_MV_STACK_SIZE];
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  uint8_t is_sec_rect;
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#if CONFIG_PVQ
  daala_dec_ctx daala_dec;
#endif
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#if CONFIG_EC_ADAPT
  FRAME_CONTEXT *tile_ctx;
#endif
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  /* Bit depth: 8, 10, 12 */
  int bd;

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  int qindex[MAX_SEGMENTS];
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  int lossless[MAX_SEGMENTS];
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  int corrupted;

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  struct aom_internal_error_info *error_info;
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#if CONFIG_GLOBAL_MOTION
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  WarpedMotionParams *global_motion;
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#endif  // CONFIG_GLOBAL_MOTION
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#if CONFIG_DELTA_Q
  int prev_qindex;
  int delta_qindex;
  int current_qindex;
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#if CONFIG_EXT_DELTA_Q
  // Since actual frame level loop filtering level value is not available
  // at the beginning of the tile (only available during actual filtering)
  // at encoder side.we record the delta_lf (against the frame level loop
  // filtering level) and code the delta between previous superblock's delta
  // lf and current delta lf. It is equivalent to the delta between previous
  // superblock's actual lf and current lf.
  int prev_delta_lf_from_base;
  int current_delta_lf_from_base;
#endif
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#endif
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#if CONFIG_ADAPT_SCAN
  const EobThresholdMD *eob_threshold_md;
#endif
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#if CONFIG_EXT_INTER && CONFIG_COMPOUND_SEGMENT
  DECLARE_ALIGNED(16, uint8_t, seg_mask[2 * MAX_SB_SQUARE]);
#endif  // CONFIG_EXT_INTER && CONFIG_COMPOUND_SEGMENT

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#if CONFIG_CFL
  CFL_CTX *cfl;
#endif
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} MACROBLOCKD;

static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
                                     PARTITION_TYPE partition) {
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  if (partition == PARTITION_INVALID)
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    return BLOCK_INVALID;
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  else
    return subsize_lookup[partition][bsize];
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}

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static const TX_TYPE intra_mode_to_tx_type_context[INTRA_MODES] = {
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  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
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#if CONFIG_ALT_INTRA
  ADST_ADST,  // SMOOTH
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#if CONFIG_SMOOTH_HV
  ADST_DCT,   // SMOOTH_V
  DCT_ADST,   // SMOOTH_H
#endif        // CONFIG_SMOOTH_HV
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#endif        // CONFIG_ALT_INTRA
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  ADST_ADST,  // TM
};

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#if CONFIG_SUPERTX
static INLINE int supertx_enabled(const MB_MODE_INFO *mbmi) {
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  TX_SIZE max_tx_size = txsize_sqr_map[mbmi->tx_size];
  return tx_size_wide[max_tx_size] >
         AOMMIN(block_size_wide[mbmi->sb_type], block_size_high[mbmi->sb_type]);
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}
#endif  // CONFIG_SUPERTX

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#define USE_TXTYPE_SEARCH_FOR_SUB8X8_IN_CB4X4 1
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#if CONFIG_RECT_TX
static INLINE int is_rect_tx(TX_SIZE tx_size) { return tx_size >= TX_SIZES; }
#endif  // CONFIG_RECT_TX

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#if CONFIG_EXT_TX
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#define ALLOW_INTRA_EXT_TX 1
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typedef enum {
  // DCT only
  EXT_TX_SET_DCTONLY = 0,
  // DCT + Identity only
  EXT_TX_SET_DCT_IDTX = 1,
  // Discrete Trig transforms w/o flip (4) + Identity (1)
  EXT_TX_SET_DTT4_IDTX = 2,
  // Discrete Trig transforms w/o flip (4) + Identity (1) + 1D Hor/vert DCT (2)
  EXT_TX_SET_DTT4_IDTX_1DDCT = 3,
  // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver DCT (2)
  EXT_TX_SET_DTT9_IDTX_1DDCT = 4,
  // Discrete Trig transforms w/ flip (9) + Identity (1) + 1D Hor/Ver (6)
  EXT_TX_SET_ALL16 = 5,
  EXT_TX_SET_TYPES
} TxSetType;

// Number of transform types in each set type
static const int num_ext_tx_set[EXT_TX_SET_TYPES] = { 1, 2, 5, 7, 12, 16 };

// Maps intra set index to the set type
static const int ext_tx_set_type_intra[EXT_TX_SETS_INTRA] = {
  EXT_TX_SET_DCTONLY, EXT_TX_SET_DTT4_IDTX_1DDCT, EXT_TX_SET_DTT4_IDTX
};
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// Maps inter set index to the set type
static const int ext_tx_set_type_inter[EXT_TX_SETS_INTER] = {
  EXT_TX_SET_DCTONLY, EXT_TX_SET_ALL16, EXT_TX_SET_DTT9_IDTX_1DDCT,
  EXT_TX_SET_DCT_IDTX
};

// Maps set types above to the indices used for intra
static const int ext_tx_set_index_intra[EXT_TX_SET_TYPES] = { 0, -1, 2,
                                                              1, -1, -1 };

// Maps set types above to the indices used for inter
static const int ext_tx_set_index_inter[EXT_TX_SET_TYPES] = {
  0, 3, -1, -1, 2, 1
};

static INLINE TxSetType get_ext_tx_set_type(TX_SIZE tx_size, BLOCK_SIZE bs,
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                                            int is_inter, int use_reduced_set) {
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  const TX_SIZE tx_size_sqr_up = txsize_sqr_up_map[tx_size];
  const TX_SIZE tx_size_sqr = txsize_sqr_map[tx_size];
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#if CONFIG_CB4X4 && USE_TXTYPE_SEARCH_FOR_SUB8X8_IN_CB4X4
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  (void)bs;
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  if (tx_size_sqr > TX_32X32) return EXT_TX_SET_DCTONLY;
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#else
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  if (tx_size_sqr > TX_32X32 || bs < BLOCK_8X8) return EXT_TX_SET_DCTONLY;
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#endif
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  if (use_reduced_set)
    return is_inter ? EXT_TX_SET_DCT_IDTX : EXT_TX_SET_DTT4_IDTX;
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  if (tx_size_sqr_up == TX_32X32)
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    return is_inter ? EXT_TX_SET_DCT_IDTX : EXT_TX_SET_DCTONLY;
  if (is_inter)
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    return (tx_size_sqr == TX_16X16 ? EXT_TX_SET_DTT9_IDTX_1DDCT
                                    : EXT_TX_SET_ALL16);
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  else
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    return (tx_size_sqr == TX_16X16 ? EXT_TX_SET_DTT4_IDTX
                                    : EXT_TX_SET_DTT4_IDTX_1DDCT);
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}

static INLINE int get_ext_tx_set(TX_SIZE tx_size, BLOCK_SIZE bs, int is_inter,
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                                 int use_reduced_set) {
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  const TxSetType set_type =
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      get_ext_tx_set_type(tx_size, bs, is_inter, use_reduced_set);
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  return is_inter ? ext_tx_set_index_inter[set_type]
                  : ext_tx_set_index_intra[set_type];
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}

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static const int use_intra_ext_tx_for_txsize[EXT_TX_SETS_INTRA][EXT_TX_SIZES] =
    {
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#if CONFIG_CB4X4
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      { 1, 1, 1, 1, 1 },  // unused
      { 0, 1, 1, 0, 0 },
      { 0, 0, 0, 1, 0 },
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#else
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      { 1, 1, 1, 1 },  // unused
      { 1, 1, 0, 0 },
      { 0, 0, 1, 0 },
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#endif  // CONFIG_CB4X4
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    };
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static const int use_inter_ext_tx_for_txsize[EXT_TX_SETS_INTER][EXT_TX_SIZES] =
    {
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#if CONFIG_CB4X4
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      { 1, 1, 1, 1, 1 },  // unused
      { 0, 1, 1, 0, 0 },
      { 0, 0, 0, 1, 0 },
      { 0, 0, 0, 0, 1 },
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#else
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      { 1, 1, 1, 1 },  // unused
      { 1, 1, 0, 0 },
      { 0, 0, 1, 0 },
      { 0, 0, 0, 1 },
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#endif  // CONFIG_CB4X4
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    };
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// Transform types used in each intra set
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static const int ext_tx_used_intra[EXT_TX_SETS_INTRA][TX_TYPES] = {
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  { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0 },
  { 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
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};

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// Numbers of transform types used in each intra set
static const int ext_tx_cnt_intra[EXT_TX_SETS_INTRA] = { 1, 7, 5 };

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// Transform types used in each inter set
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static const int ext_tx_used_inter[EXT_TX_SETS_INTER][TX_TYPES] = {
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  { 1, 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, 1, 1, 0, 0, 0, 0 },
  { 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
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};
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// Numbers of transform types used in each inter set
static const int ext_tx_cnt_inter[EXT_TX_SETS_INTER] = { 1, 16, 12, 2 };

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// 1D Transforms used in inter set, this needs to be changed if
// ext_tx_used_inter is changed
static const int ext_tx_used_inter_1D[EXT_TX_SETS_INTER][TX_TYPES_1D] = {
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  { 1, 0, 0, 0 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 0, 0, 1 },
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};

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static INLINE int get_ext_tx_types(TX_SIZE tx_size, BLOCK_SIZE bs, int is_inter,
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                                   int use_reduced_set) {
  const int set_type =
      get_ext_tx_set_type(tx_size, bs, is_inter, use_reduced_set);
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  return num_ext_tx_set[set_type];
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}
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#if CONFIG_RECT_TX
static INLINE int is_rect_tx_allowed_bsize(BLOCK_SIZE bsize) {
  static const char LUT[BLOCK_SIZES] = {
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#if CONFIG_CB4X4
    0,  // BLOCK_2X2
    0,  // BLOCK_2X4
    0,  // BLOCK_4X2
#endif
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    0,  // BLOCK_4X4
    1,  // BLOCK_4X8
    1,  // BLOCK_8X4
    0,  // BLOCK_8X8
    1,  // BLOCK_8X16
    1,  // BLOCK_16X8
    0,  // BLOCK_16X16
    1,  // BLOCK_16X32
    1,  // BLOCK_32X16
    0,  // BLOCK_32X32
    0,  // BLOCK_32X64
    0,  // BLOCK_64X32
    0,  // BLOCK_64X64
#if CONFIG_EXT_PARTITION
    0,  // BLOCK_64X128
    0,  // BLOCK_128X64
    0,  // BLOCK_128X128
#endif  // CONFIG_EXT_PARTITION
  };

  return LUT[bsize];
}

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static INLINE int is_rect_tx_allowed(const MACROBLOCKD *xd,
                                     const MB_MODE_INFO *mbmi) {
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         !xd->lossless[mbmi->segment_id];
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}
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#if CONFIG_RECT_TX_EXT
static INLINE int is_quarter_tx_allowed_bsize(BLOCK_SIZE bsize) {
  static const char LUT_QTTX[BLOCK_SIZES] = {
#if CONFIG_CB4X4
    0,  // BLOCK_2X2
    0,  // BLOCK_2X4
    0,  // BLOCK_4X2
#endif
    0,  // BLOCK_4X4
    0,  // BLOCK_4X8
    0,  // BLOCK_8X4
    0,  // BLOCK_8X8
    1,  // BLOCK_8X16
    1,  // BLOCK_16X8
    0,  // BLOCK_16X16
    0,  // BLOCK_16X32
    0,  // BLOCK_32X16
    0,  // BLOCK_32X32
    0,  // BLOCK_32X64
    0,  // BLOCK_64X32
    0,  // BLOCK_64X64
#if CONFIG_EXT_PARTITION
    0,  // BLOCK_64X128
    0,  // BLOCK_128X64
    0,  // BLOCK_128X128
#endif  // CONFIG_EXT_PARTITION
  };

  return LUT_QTTX[bsize];
}

static INLINE int is_quarter_tx_allowed(const MACROBLOCKD *xd,
                                        const MB_MODE_INFO *mbmi,
                                        int is_inter) {
  return is_quarter_tx_allowed_bsize(mbmi->sb_type) && is_inter &&
         !xd->lossless[mbmi->segment_id];
}
#endif  // CONFIG_RECT_TX_EXT
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#endif  // CONFIG_RECT_TX
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#endif  // CONFIG_EXT_TX

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static INLINE TX_SIZE tx_size_from_tx_mode(BLOCK_SIZE bsize, TX_MODE tx_mode,
                                           int is_inter) {
  const TX_SIZE largest_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
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#if (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX
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  const TX_SIZE max_rect_tx_size = max_txsize_rect_lookup[bsize];
#else
  const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
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#endif  // (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX
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  (void)is_inter;
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#if CONFIG_VAR_TX && CONFIG_RECT_TX
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#if CONFIG_CB4X4
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  if (bsize == BLOCK_4X4)
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    return AOMMIN(max_txsize_lookup[bsize], largest_tx_size);
#else
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  if (bsize < BLOCK_8X8)
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    return AOMMIN(max_txsize_lookup[bsize], largest_tx_size);
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#endif
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  if (txsize_sqr_map[max_rect_tx_size] <= largest_tx_size)
    return max_rect_tx_size;
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  else
    return largest_tx_size;
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#elif CONFIG_EXT_TX && CONFIG_RECT_TX
  if (txsize_sqr_up_map[max_rect_tx_size] <= largest_tx_size) {
    return max_rect_tx_size;
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  } else {
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    return largest_tx_size;
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  }
#else
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  return AOMMIN(max_tx_size, largest_tx_size);
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#endif  // CONFIG_VAR_TX && CONFIG_RECT_TX
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}

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#if CONFIG_EXT_INTRA
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#define MAX_ANGLE_DELTA 3
#define ANGLE_STEP 3
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extern const int16_t dr_intra_derivative[90];
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static const uint8_t mode_to_angle_map[] = {
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  0, 90, 180, 45, 135, 111, 157, 203, 67, 0,
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#if CONFIG_ALT_INTRA
  0,
#if CONFIG_SMOOTH_HV
  0, 0,
#endif  // CONFIG_SMOOTH_HV
#endif  // CONFIG_ALT_INTRA
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};
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#if CONFIG_INTRA_INTERP
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// Returns whether filter selection is needed for a given
// intra prediction angle.
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int av1_is_intra_filter_switchable(int angle);
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#endif  // CONFIG_INTRA_INTERP
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#endif  // CONFIG_EXT_INTRA

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#define FIXED_TX_TYPE 0

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// Converts block_index for given transform size to index of the block in raster
// order.
static INLINE int av1_block_index_to_raster_order(TX_SIZE tx_size,
                                                  int block_idx) {
  // For transform size 4x8, the possible block_idx values are 0 & 2, because
  // block_idx values are incremented in steps of size 'tx_width_unit x
  // tx_height_unit'. But, for this transform size, block_idx = 2 corresponds to
  // block number 1 in raster order, inside an 8x8 MI block.
  // For any other transform size, the two indices are equivalent.
  return (tx_size == TX_4X8 && block_idx == 2) ? 1 : block_idx;
}

// Inverse of above function.
// Note: only implemented for transform sizes 4x4, 4x8 and 8x4 right now.
static INLINE int av1_raster_order_to_block_index(TX_SIZE tx_size,
                                                  int raster_order) {
  assert(tx_size == TX_4X4 || tx_size == TX_4X8 || tx_size == TX_8X4);
  // We ensure that block indices are 0 & 2 if tx size is 4x8 or 8x4.
  return (tx_size == TX_4X4) ? raster_order : (raster_order > 0) ? 2 : 0;
}

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static INLINE TX_TYPE get_default_tx_type(PLANE_TYPE plane_type,
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                                          const MACROBLOCKD *xd, int block_idx,
                                          TX_SIZE tx_size) {
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  const MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;

  if (is_inter_block(mbmi) || plane_type != PLANE_TYPE_Y ||
      xd->lossless[mbmi->segment_id] || tx_size >= TX_32X32)
    return DCT_DCT;

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  return intra_mode_to_tx_type_context[plane_type == PLANE_TYPE_Y
                                           ? get_y_mode(xd->mi[0], block_idx)
                                           : mbmi->uv_mode];
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}

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static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type, const MACROBLOCKD *xd,
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                                  int block, TX_SIZE tx_size) {
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  const MODE_INFO *const mi = xd->mi[0];
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  const MB_MODE_INFO *const mbmi = &mi->mbmi;
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#if CONFIG_INTRABC && (!CONFIG_EXT_TX || CONFIG_TXK_SEL)
  // TODO(aconverse@google.com): Handle INTRABC + EXT_TX + TXK_SEL
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  if (is_intrabc_block(mbmi)) return DCT_DCT;
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#endif  // CONFIG_INTRABC && (!CONFIG_EXT_TX || CONFIG_TXK_SEL)
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#if !CONFIG_TXK_SEL
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#if FIXED_TX_TYPE
  const int block_raster_idx = av1_block_index_to_raster_order(tx_size, block);
  return get_default_tx_type(plane_type, xd, block_raster_idx, tx_size);
#elif CONFIG_EXT_TX
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#if !CONFIG_CB4X4
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  const int block_raster_idx = av1_block_index_to_raster_order(tx_size, block);
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#endif  // !CONFIG_CB4X4
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  if (xd->lossless[mbmi->segment_id] || txsize_sqr_map[tx_size] > TX_32X32 ||
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      (txsize_sqr_map[tx_size] >= TX_32X32 && !is_inter_block(mbmi)))
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    return DCT_DCT;
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  if (mbmi->sb_type >= BLOCK_8X8 || CONFIG_CB4X4) {
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    if (plane_type == PLANE_TYPE_Y) {
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#if !ALLOW_INTRA_EXT_TX
      if (is_inter_block(mbmi))
#endif  // ALLOW_INTRA_EXT_TX
        return mbmi->tx_type;
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    }
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    if (is_inter_block(mbmi)) {
// UV Inter only
#if CONFIG_CB4X4
      if (tx_size < TX_4X4) return DCT_DCT;
#endif
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      return (mbmi->tx_type == IDTX && txsize_sqr_map[tx_size] >= TX_32X32)
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                 ? DCT_DCT
                 : mbmi->tx_type;
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    }
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  }
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#if CONFIG_CB4X4
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  (void)block;
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  if (tx_size < TX_4X4)
    return DCT_DCT;
  else
    return intra_mode_to_tx_type_context[mbmi->uv_mode];
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#else
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  // Sub8x8-Inter/Intra OR UV-Intra
  if (is_inter_block(mbmi))  // Sub8x8-Inter
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    return DCT_DCT;
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  else  // Sub8x8 Intra OR UV-Intra
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    return intra_mode_to_tx_type_context[plane_type == PLANE_TYPE_Y
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                                             ? get_y_mode(mi, block_raster_idx)
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                                             : mbmi->uv_mode];
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#endif  // CONFIG_CB4X4
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#else   // CONFIG_EXT_TX
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  (void)block;
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  if (plane_type != PLANE_TYPE_Y || xd