entropymode.h 24.5 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_ENTROPYMODE_H_
#define AV1_COMMON_ENTROPYMODE_H_
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#include "av1/common/entropy.h"
#include "av1/common/entropymv.h"
#include "av1/common/filter.h"
#include "av1/common/seg_common.h"
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#include "aom_dsp/aom_filter.h"
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#if CONFIG_PVQ
#include "av1/common/pvq.h"
#include "av1/common/pvq_state.h"
#include "av1/common/generic_code.h"
#endif  // CONFIG_PVQ

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#ifdef __cplusplus
extern "C" {
#endif

#define BLOCK_SIZE_GROUPS 4

#define TX_SIZE_CONTEXTS 2

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#define INTER_OFFSET(mode) ((mode)-NEARESTMV)
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#if CONFIG_EXT_INTER
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#if CONFIG_COMPOUND_SINGLEREF
#define INTER_SINGLEREF_COMP_OFFSET(mode) ((mode)-SR_NEAREST_NEARMV)
#endif  // CONFIG_COMPOUND_SINGLEREF
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#define INTER_COMPOUND_OFFSET(mode) ((mode)-NEAREST_NEARESTMV)
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#endif  // CONFIG_EXT_INTER
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#if CONFIG_PALETTE
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// Number of possible contexts for a color index.
// As can be seen from av1_get_palette_color_index_context(), the possible
// contexts are (2,0,0), (2,2,1), (3,2,0), (4,1,0), (5,0,0). These are mapped to
// a value from 0 to 4 using 'palette_color_index_context_lookup' table.
#define PALETTE_COLOR_INDEX_CONTEXTS 5

// Maximum number of colors in a palette.
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#define PALETTE_MAX_SIZE 8
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// Minimum number of colors in a palette.
#define PALETTE_MIN_SIZE 2
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// Palette mode is available for block sizes >= 8x8.
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#define PALETTE_BLOCK_SIZES (BLOCK_LARGEST - BLOCK_8X8 + 1)
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// Palette Y mode context for a block is determined by number of neighboring
// blocks (top and/or left) using a palette for Y plane. So, possible Y mode'
// context values are:
// 0 if neither left nor top block uses palette for Y plane,
// 1 if exactly one of left or top block uses palette for Y plane, and
// 2 if both left and top blocks use palette for Y plane.
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#define PALETTE_Y_MODE_CONTEXTS 3
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// Palette UV mode context for a block is determined by whether this block uses
// palette for the Y plane. So, possible values are:
// 0 if this block doesn't use palette for Y plane.
// 1 if this block uses palette for Y plane (i.e. Y palette size > 0).
#define PALETTE_UV_MODE_CONTEXTS 2

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#define PALETTE_MAX_BLOCK_SIZE (64 * 64)
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#endif  // CONFIG_PALETTE
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#if CONFIG_INTRABC
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#define INTRABC_PROB_DEFAULT 192
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#endif  // CONFIG_INTRABC

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struct AV1Common;
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typedef struct {
  const int16_t *scan;
  const int16_t *iscan;
  const int16_t *neighbors;
} SCAN_ORDER;

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struct seg_counts {
  unsigned int tree_total[MAX_SEGMENTS];
  unsigned int tree_mispred[MAX_SEGMENTS];
  unsigned int pred[PREDICTION_PROBS][2];
};

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typedef struct frame_contexts {
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  aom_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
  aom_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
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#if CONFIG_EXT_PARTITION_TYPES
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  aom_prob partition_prob[PARTITION_CONTEXTS][EXT_PARTITION_TYPES - 1];
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#else
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  aom_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
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#endif
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  av1_coeff_probs_model coef_probs[TX_SIZES][PLANE_TYPES];
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  coeff_cdf_model coef_tail_cdfs[TX_SIZES][PLANE_TYPES];
  coeff_cdf_model coef_head_cdfs[TX_SIZES][PLANE_TYPES];
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  aom_prob blockzero_probs[TX_SIZES][PLANE_TYPES][REF_TYPES][BLOCKZ_CONTEXTS];
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  aom_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
                                 [SWITCHABLE_FILTERS - 1];
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#if CONFIG_ADAPT_SCAN
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// TODO(angiebird): try aom_prob
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#if CONFIG_CHROMA_2X2
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  uint32_t non_zero_prob_2x2[TX_TYPES][4];
#endif
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  uint32_t non_zero_prob_4X4[TX_TYPES][16];
  uint32_t non_zero_prob_8X8[TX_TYPES][64];
  uint32_t non_zero_prob_16X16[TX_TYPES][256];
  uint32_t non_zero_prob_32X32[TX_TYPES][1024];

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  uint32_t non_zero_prob_4X8[TX_TYPES][32];
  uint32_t non_zero_prob_8X4[TX_TYPES][32];
  uint32_t non_zero_prob_16X8[TX_TYPES][128];
  uint32_t non_zero_prob_8X16[TX_TYPES][128];
  uint32_t non_zero_prob_32X16[TX_TYPES][512];
  uint32_t non_zero_prob_16X32[TX_TYPES][512];

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#if CONFIG_CHROMA_2X2
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  DECLARE_ALIGNED(16, int16_t, scan_2x2[TX_TYPES][4]);
#endif
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  DECLARE_ALIGNED(16, int16_t, scan_4X4[TX_TYPES][16]);
  DECLARE_ALIGNED(16, int16_t, scan_8X8[TX_TYPES][64]);
  DECLARE_ALIGNED(16, int16_t, scan_16X16[TX_TYPES][256]);
  DECLARE_ALIGNED(16, int16_t, scan_32X32[TX_TYPES][1024]);

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  DECLARE_ALIGNED(16, int16_t, scan_4X8[TX_TYPES][32]);
  DECLARE_ALIGNED(16, int16_t, scan_8X4[TX_TYPES][32]);
  DECLARE_ALIGNED(16, int16_t, scan_8X16[TX_TYPES][128]);
  DECLARE_ALIGNED(16, int16_t, scan_16X8[TX_TYPES][128]);
  DECLARE_ALIGNED(16, int16_t, scan_16X32[TX_TYPES][512]);
  DECLARE_ALIGNED(16, int16_t, scan_32X16[TX_TYPES][512]);

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#if CONFIG_CHROMA_2X2
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  DECLARE_ALIGNED(16, int16_t, iscan_2x2[TX_TYPES][4]);
#endif
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  DECLARE_ALIGNED(16, int16_t, iscan_4X4[TX_TYPES][16]);
  DECLARE_ALIGNED(16, int16_t, iscan_8X8[TX_TYPES][64]);
  DECLARE_ALIGNED(16, int16_t, iscan_16X16[TX_TYPES][256]);
  DECLARE_ALIGNED(16, int16_t, iscan_32X32[TX_TYPES][1024]);

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  DECLARE_ALIGNED(16, int16_t, iscan_4X8[TX_TYPES][32]);
  DECLARE_ALIGNED(16, int16_t, iscan_8X4[TX_TYPES][32]);
  DECLARE_ALIGNED(16, int16_t, iscan_8X16[TX_TYPES][128]);
  DECLARE_ALIGNED(16, int16_t, iscan_16X8[TX_TYPES][128]);
  DECLARE_ALIGNED(16, int16_t, iscan_16X32[TX_TYPES][512]);
  DECLARE_ALIGNED(16, int16_t, iscan_32X16[TX_TYPES][512]);

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#if CONFIG_CHROMA_2X2
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  int16_t nb_2x2[TX_TYPES][(4 + 1) * 2];
#endif
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  int16_t nb_4X4[TX_TYPES][(16 + 1) * 2];
  int16_t nb_8X8[TX_TYPES][(64 + 1) * 2];
  int16_t nb_16X16[TX_TYPES][(256 + 1) * 2];
  int16_t nb_32X32[TX_TYPES][(1024 + 1) * 2];

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  int16_t nb_4X8[TX_TYPES][(32 + 1) * 2];
  int16_t nb_8X4[TX_TYPES][(32 + 1) * 2];
  int16_t nb_8X16[TX_TYPES][(128 + 1) * 2];
  int16_t nb_16X8[TX_TYPES][(128 + 1) * 2];
  int16_t nb_16X32[TX_TYPES][(512 + 1) * 2];
  int16_t nb_32X16[TX_TYPES][(512 + 1) * 2];

  SCAN_ORDER sc[TX_SIZES_ALL][TX_TYPES];
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  int16_t eob_threshold[TX_SIZES_ALL][TX_TYPES][EOB_THRESHOLD_NUM];
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#endif  // CONFIG_ADAPT_SCAN

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#if CONFIG_LV_MAP
  aom_prob txb_skip[TX_SIZES][TXB_SKIP_CONTEXTS];
  aom_prob nz_map[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS];
  aom_prob eob_flag[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS];
  aom_prob dc_sign[PLANE_TYPES][DC_SIGN_CONTEXTS];
  aom_prob coeff_base[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS]
                     [COEFF_BASE_CONTEXTS];
  aom_prob coeff_lps[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS];
#endif

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  aom_prob newmv_prob[NEWMV_MODE_CONTEXTS];
  aom_prob zeromv_prob[ZEROMV_MODE_CONTEXTS];
  aom_prob refmv_prob[REFMV_MODE_CONTEXTS];
  aom_prob drl_prob[DRL_MODE_CONTEXTS];
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#if CONFIG_NEW_MULTISYMBOL
  aom_cdf_prob newmv_cdf[NEWMV_MODE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob zeromv_cdf[ZEROMV_MODE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob refmv_cdf[REFMV_MODE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob drl_cdf[DRL_MODE_CONTEXTS][CDF_SIZE(2)];
#endif
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#if CONFIG_EXT_INTER
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  aom_prob inter_compound_mode_probs[INTER_MODE_CONTEXTS]
                                    [INTER_COMPOUND_MODES - 1];
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  aom_cdf_prob inter_compound_mode_cdf[INTER_MODE_CONTEXTS]
                                      [CDF_SIZE(INTER_COMPOUND_MODES)];
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#if CONFIG_COMPOUND_SINGLEREF
  aom_prob inter_singleref_comp_mode_probs[INTER_MODE_CONTEXTS]
                                          [INTER_SINGLEREF_COMP_MODES - 1];
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  aom_cdf_prob inter_singleref_comp_mode_cdf[INTER_MODE_CONTEXTS][CDF_SIZE(
      INTER_SINGLEREF_COMP_MODES)];
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#endif  // CONFIG_COMPOUND_SINGLEREF
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  aom_prob compound_type_prob[BLOCK_SIZES_ALL][COMPOUND_TYPES - 1];
  aom_cdf_prob compound_type_cdf[BLOCK_SIZES_ALL][CDF_SIZE(COMPOUND_TYPES)];
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#if CONFIG_INTERINTRA
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  aom_prob interintra_prob[BLOCK_SIZE_GROUPS];
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  aom_prob wedge_interintra_prob[BLOCK_SIZES_ALL];
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  aom_prob interintra_mode_prob[BLOCK_SIZE_GROUPS][INTERINTRA_MODES - 1];
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#if CONFIG_NEW_MULTISYMBOL
  aom_cdf_prob interintra_cdf[BLOCK_SIZE_GROUPS][CDF_SIZE(2)];
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  aom_cdf_prob wedge_interintra_cdf[BLOCK_SIZES_ALL][CDF_SIZE(2)];
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#endif
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  aom_cdf_prob interintra_mode_cdf[BLOCK_SIZE_GROUPS]
                                  [CDF_SIZE(INTERINTRA_MODES)];
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#endif  // CONFIG_INTERINTRA
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#endif  // CONFIG_EXT_INTER
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#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
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  aom_prob motion_mode_prob[BLOCK_SIZES_ALL][MOTION_MODES - 1];
  aom_cdf_prob motion_mode_cdf[BLOCK_SIZES_ALL][CDF_SIZE(MOTION_MODES)];
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#if CONFIG_NCOBMC_ADAPT_WEIGHT && CONFIG_MOTION_VAR
  aom_prob ncobmc_mode_prob[ADAPT_OVERLAP_BLOCKS][MAX_NCOBMC_MODES - 1];
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  aom_cdf_prob ncobmc_mode_cdf[ADAPT_OVERLAP_BLOCKS]
                              [CDF_SIZE(MAX_NCOBMC_MODES)];
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#endif
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#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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  aom_prob obmc_prob[BLOCK_SIZES_ALL];
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#if CONFIG_NEW_MULTISYMBOL
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  aom_cdf_prob obmc_cdf[BLOCK_SIZES_ALL][CDF_SIZE(2)];
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#endif  // CONFIG_NEW_MULTISYMBOL
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#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
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  aom_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
  aom_prob comp_inter_prob[COMP_INTER_CONTEXTS];
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#if CONFIG_PALETTE
  aom_cdf_prob palette_y_size_cdf[PALETTE_BLOCK_SIZES][CDF_SIZE(PALETTE_SIZES)];
  aom_cdf_prob palette_uv_size_cdf[PALETTE_BLOCK_SIZES]
                                  [CDF_SIZE(PALETTE_SIZES)];
  aom_cdf_prob palette_y_color_index_cdf[PALETTE_SIZES]
                                        [PALETTE_COLOR_INDEX_CONTEXTS]
                                        [CDF_SIZE(PALETTE_COLORS)];
  aom_cdf_prob palette_uv_color_index_cdf[PALETTE_SIZES]
                                         [PALETTE_COLOR_INDEX_CONTEXTS]
                                         [CDF_SIZE(PALETTE_COLORS)];
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#endif  // CONFIG_PALETTE
#if CONFIG_NEW_MULTISYMBOL
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  aom_cdf_prob comp_inter_cdf[COMP_INTER_CONTEXTS][CDF_SIZE(2)];
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  aom_cdf_prob single_ref_cdf[REF_CONTEXTS][SINGLE_REFS - 1][CDF_SIZE(2)];
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#endif
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#if CONFIG_EXT_COMP_REFS
  aom_prob comp_ref_type_prob[COMP_REF_TYPE_CONTEXTS];
  aom_prob uni_comp_ref_prob[UNI_COMP_REF_CONTEXTS][UNIDIR_COMP_REFS - 1];
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#if CONFIG_NEW_MULTISYMBOL
  aom_cdf_prob comp_ref_type_cdf[COMP_REF_TYPE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob uni_comp_ref_cdf[UNI_COMP_REF_CONTEXTS][UNIDIR_COMP_REFS - 1]
                               [CDF_SIZE(2)];
#endif  // CONFIG_NEW_MULTISYMBOL
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#endif  // CONFIG_EXT_COMP_REFS
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  aom_prob single_ref_prob[REF_CONTEXTS][SINGLE_REFS - 1];
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#if CONFIG_EXT_REFS
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  aom_prob comp_ref_prob[REF_CONTEXTS][FWD_REFS - 1];
  aom_prob comp_bwdref_prob[REF_CONTEXTS][BWD_REFS - 1];
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#else
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  aom_prob comp_ref_prob[REF_CONTEXTS][COMP_REFS - 1];
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#endif  // CONFIG_EXT_REFS
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#if CONFIG_NEW_MULTISYMBOL
#if CONFIG_EXT_REFS
  aom_cdf_prob comp_ref_cdf[REF_CONTEXTS][FWD_REFS - 1][CDF_SIZE(2)];
  aom_cdf_prob comp_bwdref_cdf[REF_CONTEXTS][BWD_REFS - 1][CDF_SIZE(2)];
#else
  aom_cdf_prob comp_ref_cdf[REF_CONTEXTS][COMP_REFS - 1][CDF_SIZE(2)];
#endif  // CONFIG_EXT_REFS
#endif
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#if CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
  aom_prob comp_inter_mode_prob[COMP_INTER_MODE_CONTEXTS];
#endif  // CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
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  aom_prob tx_size_probs[MAX_TX_DEPTH][TX_SIZE_CONTEXTS][MAX_TX_DEPTH];
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#if CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
  aom_prob quarter_tx_size_prob;
#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
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#if CONFIG_VAR_TX
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  aom_prob txfm_partition_prob[TXFM_PARTITION_CONTEXTS];
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#if CONFIG_NEW_MULTISYMBOL
  aom_cdf_prob txfm_partition_cdf[TXFM_PARTITION_CONTEXTS][CDF_SIZE(2)];
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#endif
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#endif  // CONFIG_VAR_TX
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  aom_prob skip_probs[SKIP_CONTEXTS];
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#if CONFIG_NEW_MULTISYMBOL
  aom_cdf_prob skip_cdfs[SKIP_CONTEXTS][CDF_SIZE(2)];
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  aom_cdf_prob intra_inter_cdf[INTRA_INTER_CONTEXTS][CDF_SIZE(2)];
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#endif
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  nmv_context nmvc[NMV_CONTEXTS];
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#if CONFIG_INTRABC
  nmv_context ndvc;
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  aom_prob intrabc_prob;
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#endif
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  int initialized;
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#if CONFIG_EXT_TX
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  aom_prob inter_ext_tx_prob[EXT_TX_SETS_INTER][EXT_TX_SIZES][TX_TYPES - 1];
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  aom_prob intra_ext_tx_prob[EXT_TX_SETS_INTRA][EXT_TX_SIZES][INTRA_MODES]
                            [TX_TYPES - 1];
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#else
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  aom_prob intra_ext_tx_prob[EXT_TX_SIZES][TX_TYPES][TX_TYPES - 1];
  aom_prob inter_ext_tx_prob[EXT_TX_SIZES][TX_TYPES - 1];
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#endif  // CONFIG_EXT_TX
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#if CONFIG_SUPERTX
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  aom_prob supertx_prob[PARTITION_SUPERTX_CONTEXTS][TX_SIZES];
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#endif  // CONFIG_SUPERTX
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  struct segmentation_probs seg;
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#if CONFIG_EXT_INTRA
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#if CONFIG_INTRA_INTERP
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  aom_prob intra_filter_probs[INTRA_FILTERS + 1][INTRA_FILTERS - 1];
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#endif  // CONFIG_INTRA_INTERP
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#endif  // CONFIG_EXT_INTRA
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#if CONFIG_FILTER_INTRA
  aom_prob filter_intra_probs[PLANE_TYPES];
#endif  // CONFIG_FILTER_INTRA
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#if CONFIG_LOOP_RESTORATION
  aom_prob switchable_restore_prob[RESTORE_SWITCHABLE_TYPES - 1];
#endif  // CONFIG_LOOP_RESTORATION
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  aom_cdf_prob y_mode_cdf[BLOCK_SIZE_GROUPS][CDF_SIZE(INTRA_MODES)];
  aom_cdf_prob uv_mode_cdf[INTRA_MODES][CDF_SIZE(INTRA_MODES)];
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#if CONFIG_EXT_PARTITION_TYPES
  aom_cdf_prob partition_cdf[PARTITION_CONTEXTS][CDF_SIZE(EXT_PARTITION_TYPES)];
#else
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  aom_cdf_prob partition_cdf[PARTITION_CONTEXTS][CDF_SIZE(PARTITION_TYPES)];
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#endif
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  aom_cdf_prob switchable_interp_cdf[SWITCHABLE_FILTER_CONTEXTS]
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                                    [CDF_SIZE(SWITCHABLE_FILTERS)];
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  /* kf_y_cdf is discarded after use, so does not require persistent storage.
     However, we keep it with the other CDFs in this struct since it needs to
     be copied to each tile to support parallelism just like the others.
   */
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  aom_cdf_prob kf_y_cdf[INTRA_MODES][INTRA_MODES][CDF_SIZE(INTRA_MODES)];
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  aom_cdf_prob tx_size_cdf[MAX_TX_DEPTH][TX_SIZE_CONTEXTS]
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                          [CDF_SIZE(MAX_TX_DEPTH + 1)];
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#if CONFIG_DELTA_Q
  aom_cdf_prob delta_q_cdf[CDF_SIZE(DELTA_Q_PROBS + 1)];
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#if CONFIG_EXT_DELTA_Q
  aom_cdf_prob delta_lf_cdf[CDF_SIZE(DELTA_LF_PROBS + 1)];
#endif
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#endif  // CONFIG_DELTA_Q
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#if CONFIG_EXT_TX
  aom_cdf_prob intra_ext_tx_cdf[EXT_TX_SETS_INTRA][EXT_TX_SIZES][INTRA_MODES]
                               [CDF_SIZE(TX_TYPES)];
  aom_cdf_prob inter_ext_tx_cdf[EXT_TX_SETS_INTER][EXT_TX_SIZES]
                               [CDF_SIZE(TX_TYPES)];
#else
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  aom_cdf_prob intra_ext_tx_cdf[EXT_TX_SIZES][TX_TYPES][CDF_SIZE(TX_TYPES)];
  aom_cdf_prob inter_ext_tx_cdf[EXT_TX_SIZES][CDF_SIZE(TX_TYPES)];
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#endif  // CONFIG_EXT_TX
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#if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
  aom_cdf_prob intra_filter_cdf[INTRA_FILTERS + 1][CDF_SIZE(INTRA_FILTERS)];
#endif  // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
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#if CONFIG_DELTA_Q
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  aom_prob delta_q_prob[DELTA_Q_PROBS];
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#if CONFIG_EXT_DELTA_Q
  aom_prob delta_lf_prob[DELTA_LF_PROBS];
#endif
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#endif
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#if CONFIG_PVQ
  // TODO(any): If PVQ is enabled, most of coefficient related cdf,
  // such as coef_cdfs[], coef_tail_cdfs[], and coef_heaf_cdfs[] can be removed.
  od_adapt_ctx pvq_context;
#endif  // CONFIG_PVQ
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#if CONFIG_CFL
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  aom_cdf_prob cfl_alpha_cdf[CDF_SIZE(CFL_ALPHABET_SIZE)];
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#endif
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} FRAME_CONTEXT;

typedef struct FRAME_COUNTS {
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// Note: This structure should only contain 'unsigned int' fields, or
// aggregates built solely from 'unsigned int' fields/elements
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#if CONFIG_ENTROPY_STATS
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  unsigned int kf_y_mode[INTRA_MODES][INTRA_MODES][INTRA_MODES];
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  unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
  unsigned int uv_mode[INTRA_MODES][INTRA_MODES];
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#endif  // CONFIG_ENTROPY_STATS
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#if CONFIG_EXT_PARTITION_TYPES
  unsigned int partition[PARTITION_CONTEXTS][EXT_PARTITION_TYPES];
#else
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  unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES];
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#endif
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  av1_coeff_count_model coef[TX_SIZES][PLANE_TYPES];
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  unsigned int eob_branch[TX_SIZES][PLANE_TYPES][REF_TYPES][COEF_BANDS]
                         [COEFF_CONTEXTS];
  unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
                                [SWITCHABLE_FILTERS];
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#if CONFIG_ADAPT_SCAN
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#if CONFIG_CHROMA_2X2
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  unsigned int non_zero_count_2x2[TX_TYPES][4];
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#endif  // CONFIG_CHROMA_2X2
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  unsigned int non_zero_count_4X4[TX_TYPES][16];
  unsigned int non_zero_count_8X8[TX_TYPES][64];
  unsigned int non_zero_count_16X16[TX_TYPES][256];
  unsigned int non_zero_count_32X32[TX_TYPES][1024];
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  unsigned int non_zero_count_4x8[TX_TYPES][32];
  unsigned int non_zero_count_8x4[TX_TYPES][32];
  unsigned int non_zero_count_8x16[TX_TYPES][128];
  unsigned int non_zero_count_16x8[TX_TYPES][128];
  unsigned int non_zero_count_16x32[TX_TYPES][512];
  unsigned int non_zero_count_32x16[TX_TYPES][512];

  unsigned int txb_count[TX_SIZES_ALL][TX_TYPES];
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#endif  // CONFIG_ADAPT_SCAN
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#if CONFIG_LV_MAP
  unsigned int txb_skip[TX_SIZES][TXB_SKIP_CONTEXTS][2];
  unsigned int nz_map[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS][2];
  unsigned int eob_flag[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS][2];
  unsigned int dc_sign[PLANE_TYPES][DC_SIGN_CONTEXTS][2];
  unsigned int coeff_base[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS]
                         [COEFF_BASE_CONTEXTS][2];
  unsigned int coeff_lps[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS][2];
#endif  // CONFIG_LV_MAP

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  av1_blockz_count_model blockz_count[TX_SIZES][PLANE_TYPES];
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  unsigned int newmv_mode[NEWMV_MODE_CONTEXTS][2];
  unsigned int zeromv_mode[ZEROMV_MODE_CONTEXTS][2];
  unsigned int refmv_mode[REFMV_MODE_CONTEXTS][2];
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  unsigned int drl_mode[DRL_MODE_CONTEXTS][2];
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#if CONFIG_EXT_INTER
  unsigned int inter_compound_mode[INTER_MODE_CONTEXTS][INTER_COMPOUND_MODES];
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#if CONFIG_COMPOUND_SINGLEREF
  unsigned int inter_singleref_comp_mode[INTER_MODE_CONTEXTS]
                                        [INTER_SINGLEREF_COMP_MODES];
#endif  // CONFIG_COMPOUND_SINGLEREF
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#if CONFIG_INTERINTRA
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  unsigned int interintra[BLOCK_SIZE_GROUPS][2];
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  unsigned int interintra_mode[BLOCK_SIZE_GROUPS][INTERINTRA_MODES];
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  unsigned int wedge_interintra[BLOCK_SIZES_ALL][2];
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#endif  // CONFIG_INTERINTRA
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  unsigned int compound_interinter[BLOCK_SIZES_ALL][COMPOUND_TYPES];
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#endif  // CONFIG_EXT_INTER
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#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
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  unsigned int motion_mode[BLOCK_SIZES_ALL][MOTION_MODES];
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#if CONFIG_NCOBMC_ADAPT_WEIGHT && CONFIG_MOTION_VAR
  unsigned int ncobmc_mode[ADAPT_OVERLAP_BLOCKS][MAX_NCOBMC_MODES];
#endif
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#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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  unsigned int obmc[BLOCK_SIZES_ALL][2];
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#endif  // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
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  unsigned int intra_inter[INTRA_INTER_CONTEXTS][2];
  unsigned int comp_inter[COMP_INTER_CONTEXTS][2];
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#if CONFIG_EXT_COMP_REFS
  unsigned int comp_ref_type[COMP_REF_TYPE_CONTEXTS][2];
  unsigned int uni_comp_ref[UNI_COMP_REF_CONTEXTS][UNIDIR_COMP_REFS - 1][2];
#endif  // CONFIG_EXT_COMP_REFS
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  unsigned int single_ref[REF_CONTEXTS][SINGLE_REFS - 1][2];
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#if CONFIG_EXT_REFS
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  unsigned int comp_ref[REF_CONTEXTS][FWD_REFS - 1][2];
  unsigned int comp_bwdref[REF_CONTEXTS][BWD_REFS - 1][2];
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#else
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  unsigned int comp_ref[REF_CONTEXTS][COMP_REFS - 1][2];
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#endif  // CONFIG_EXT_REFS
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#if CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
  unsigned int comp_inter_mode[COMP_INTER_MODE_CONTEXTS][2];
#endif  // CONFIG_EXT_INTER && CONFIG_COMPOUND_SINGLEREF
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  // TODO(any): tx_size_totals is only used by the encoder to decide whether
  // to use forward updates for the coeff probs, and as such it does not really
  // belong into this structure.
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  unsigned int tx_size_totals[TX_SIZES];
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  unsigned int tx_size[MAX_TX_DEPTH][TX_SIZE_CONTEXTS][MAX_TX_DEPTH + 1];
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#if CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
  unsigned int quarter_tx_size[2];
#endif  // CONFIG_EXT_TX && CONFIG_RECT_TX && CONFIG_RECT_TX_EXT
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#if CONFIG_VAR_TX
  unsigned int txfm_partition[TXFM_PARTITION_CONTEXTS][2];
#endif
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  unsigned int skip[SKIP_CONTEXTS][2];
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  nmv_context_counts mv[NMV_CONTEXTS];
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#if CONFIG_INTRABC
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  unsigned int intrabc[2];
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  nmv_context_counts dv;
#endif
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#if CONFIG_DELTA_Q
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  unsigned int delta_q[DELTA_Q_PROBS][2];
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#if CONFIG_EXT_DELTA_Q
  unsigned int delta_lf[DELTA_LF_PROBS][2];
#endif
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#endif
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#if CONFIG_EXT_TX
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#if CONFIG_RECT_TX
  unsigned int tx_size_implied[TX_SIZES][TX_SIZES];
#endif  // CONFIG_RECT_TX
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  unsigned int inter_ext_tx[EXT_TX_SETS_INTER][EXT_TX_SIZES][TX_TYPES];
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  unsigned int intra_ext_tx[EXT_TX_SETS_INTRA][EXT_TX_SIZES][INTRA_MODES]
                           [TX_TYPES];
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#else
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  unsigned int intra_ext_tx[EXT_TX_SIZES][TX_TYPES][TX_TYPES];
  unsigned int inter_ext_tx[EXT_TX_SIZES][TX_TYPES];
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#endif  // CONFIG_EXT_TX
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#if CONFIG_SUPERTX
  unsigned int supertx[PARTITION_SUPERTX_CONTEXTS][TX_SIZES][2];
  unsigned int supertx_size[TX_SIZES];
#endif  // CONFIG_SUPERTX
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  struct seg_counts seg;
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#if CONFIG_EXT_INTRA
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#if CONFIG_INTRA_INTERP
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  unsigned int intra_filter[INTRA_FILTERS + 1][INTRA_FILTERS];
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#endif  // CONFIG_INTRA_INTERP
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#endif  // CONFIG_EXT_INTRA
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#if CONFIG_FILTER_INTRA
  unsigned int filter_intra[PLANE_TYPES][2];
#endif  // CONFIG_FILTER_INTRA
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} FRAME_COUNTS;

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// CDF version of 'av1_kf_y_mode_prob'.
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extern const aom_cdf_prob av1_kf_y_mode_cdf[INTRA_MODES][INTRA_MODES]
                                           [CDF_SIZE(INTRA_MODES)];

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#if CONFIG_PALETTE
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extern const aom_prob av1_default_palette_y_mode_prob[PALETTE_BLOCK_SIZES]
                                                     [PALETTE_Y_MODE_CONTEXTS];
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extern const aom_prob
    av1_default_palette_uv_mode_prob[PALETTE_UV_MODE_CONTEXTS];
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#endif  // CONFIG_PALETTE
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extern const int av1_intra_mode_ind[INTRA_MODES];
extern const int av1_intra_mode_inv[INTRA_MODES];
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#if CONFIG_EXT_TX
extern int av1_ext_tx_intra_ind[EXT_TX_SETS_INTRA][TX_TYPES];
extern int av1_ext_tx_intra_inv[EXT_TX_SETS_INTRA][TX_TYPES];
extern int av1_ext_tx_inter_ind[EXT_TX_SETS_INTER][TX_TYPES];
extern int av1_ext_tx_inter_inv[EXT_TX_SETS_INTER][TX_TYPES];
#endif

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#if CONFIG_EXT_INTER
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#if CONFIG_INTERINTRA
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extern const aom_tree_index
    av1_interintra_mode_tree[TREE_SIZE(INTERINTRA_MODES)];
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#endif
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extern const aom_tree_index
    av1_inter_compound_mode_tree[TREE_SIZE(INTER_COMPOUND_MODES)];
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#if CONFIG_COMPOUND_SINGLEREF
extern const aom_tree_index
    av1_inter_singleref_comp_mode_tree[TREE_SIZE(INTER_SINGLEREF_COMP_MODES)];
#endif  // CONFIG_COMPOUND_SINGLEREF
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extern const aom_tree_index av1_compound_type_tree[TREE_SIZE(COMPOUND_TYPES)];
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#endif  // CONFIG_EXT_INTER
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extern const aom_tree_index av1_partition_tree[TREE_SIZE(PARTITION_TYPES)];
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#if CONFIG_EXT_PARTITION_TYPES
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extern const aom_tree_index
    av1_ext_partition_tree[TREE_SIZE(EXT_PARTITION_TYPES)];
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#endif
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extern const aom_tree_index
    av1_switchable_interp_tree[TREE_SIZE(SWITCHABLE_FILTERS)];
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#if CONFIG_PALETTE
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extern const aom_tree_index
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    av1_palette_color_index_tree[PALETTE_SIZES][TREE_SIZE(PALETTE_COLORS)];
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#endif  // CONFIG_PALETTE
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extern const aom_tree_index av1_tx_size_tree[MAX_TX_DEPTH][TREE_SIZE(TX_SIZES)];
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#if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
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extern const aom_tree_index av1_intra_filter_tree[TREE_SIZE(INTRA_FILTERS)];
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#endif  // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
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#if CONFIG_EXT_TX
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extern const aom_tree_index av1_ext_tx_inter_tree[EXT_TX_SETS_INTER]
                                                 [TREE_SIZE(TX_TYPES)];
extern const aom_tree_index av1_ext_tx_intra_tree[EXT_TX_SETS_INTRA]
                                                 [TREE_SIZE(TX_TYPES)];
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#else
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extern const aom_tree_index av1_ext_tx_tree[TREE_SIZE(TX_TYPES)];
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#endif  // CONFIG_EXT_TX
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#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
extern const aom_tree_index av1_motion_mode_tree[TREE_SIZE(MOTION_MODES)];
#endif  // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
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#if CONFIG_NCOBMC_ADAPT_WEIGHT && CONFIG_MOTION_VAR
extern const aom_tree_index av1_ncobmc_mode_tree[TREE_SIZE(MAX_NCOBMC_MODES)];
#endif
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#if CONFIG_LOOP_RESTORATION
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#define RESTORE_NONE_SGRPROJ_PROB 64
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#define RESTORE_NONE_BILATERAL_PROB 16
#define RESTORE_NONE_WIENER_PROB 64
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#define RESTORE_NONE_DOMAINTXFMRF_PROB 64
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extern const aom_tree_index
    av1_switchable_restore_tree[TREE_SIZE(RESTORE_SWITCHABLE_TYPES)];
#endif  // CONFIG_LOOP_RESTORATION
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extern int av1_switchable_interp_ind[SWITCHABLE_FILTERS];
extern int av1_switchable_interp_inv[SWITCHABLE_FILTERS];
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void av1_setup_past_independence(struct AV1Common *cm);
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void av1_adapt_intra_frame_probs(struct AV1Common *cm);
void av1_adapt_inter_frame_probs(struct AV1Common *cm);
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#if !CONFIG_EXT_TX
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extern int av1_ext_tx_ind[TX_TYPES];
extern int av1_ext_tx_inv[TX_TYPES];
#endif
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static INLINE int av1_ceil_log2(int n) {
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  int i = 1, p = 2;
  while (p < n) {
    i++;
    p = p << 1;
  }
  return i;
}

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#if CONFIG_PALETTE
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// Returns the context for palette color index at row 'r' and column 'c',
// along with the 'color_order' of neighbors and the 'color_idx'.
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// The 'color_map' is a 2D array with the given 'stride'.
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int av1_get_palette_color_index_context(const uint8_t *color_map, int stride,
                                        int r, int c, int palette_size,
                                        uint8_t *color_order, int *color_idx);
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#endif  // CONFIG_PALETTE
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#ifdef __cplusplus
}  // extern "C"
#endif

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#endif  // AV1_COMMON_ENTROPYMODE_H_