entropymode.h 19.9 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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#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)
#define INTER_COMPOUND_OFFSET(mode) ((mode)-NEAREST_NEARESTMV)
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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

// 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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#if CONFIG_KF_CTX
#define KF_MODE_CONTEXTS 5
#endif

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// A define to configure whether 4:1 and 1:4 partitions are allowed for 128x128
// blocks. They seem not to be giving great results (and might be expensive to
// implement in hardware), so this is a toggle to conditionally disable them.
#define ALLOW_128X32_BLOCKS 0

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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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#if CONFIG_ADAPT_SCAN
typedef struct NON_ZERO_COUNT {
  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];

  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];
} NON_ZERO_COUNT;
#endif

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typedef struct frame_contexts {
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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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#if CONFIG_ADAPT_SCAN
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  struct NON_ZERO_COUNT non_zero_count;

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  // TODO(angiebird): try aom_prob
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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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  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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  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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  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];
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  aom_prob eob_extra[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS];
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  aom_prob dc_sign[PLANE_TYPES][DC_SIGN_CONTEXTS];
  aom_prob coeff_base[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS]
                     [COEFF_BASE_CONTEXTS];
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#if !CONFIG_LV_MAP_MULTI
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  aom_prob coeff_lps[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS];
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  aom_prob coeff_br[TX_SIZES][PLANE_TYPES][BASE_RANGE_SETS][LEVEL_CONTEXTS];
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#else
  aom_prob coeff_lps[TX_SIZES][PLANE_TYPES][BR_CDF_SIZE - 1][LEVEL_CONTEXTS];
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#endif
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  aom_cdf_prob txb_skip_cdf[TX_SIZES][TXB_SKIP_CONTEXTS][CDF_SIZE(2)];
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#if !CONFIG_LV_MAP_MULTI
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  aom_cdf_prob nz_map_cdf[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS]
                         [CDF_SIZE(2)];
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#endif
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  aom_cdf_prob eob_flag_cdf[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS]
                           [CDF_SIZE(2)];
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  aom_cdf_prob eob_extra_cdf[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS]
                            [CDF_SIZE(2)];
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  aom_cdf_prob dc_sign_cdf[PLANE_TYPES][DC_SIGN_CONTEXTS][CDF_SIZE(2)];
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#if CONFIG_LV_MAP_MULTI
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#if USE_BASE_EOB_ALPHABET
  aom_cdf_prob coeff_base_eob_cdf[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS_EOB]
                                 [CDF_SIZE(3)];
#endif
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  aom_cdf_prob coeff_base_cdf[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS]
                             [CDF_SIZE(4)];
  aom_cdf_prob coeff_br_cdf[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS]
                           [CDF_SIZE(BR_CDF_SIZE)];
#else
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  aom_cdf_prob coeff_base_cdf[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS]
                             [COEFF_BASE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob coeff_lps_cdf[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS]
                            [CDF_SIZE(2)];
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  aom_cdf_prob coeff_br_cdf[TX_SIZES][PLANE_TYPES][BASE_RANGE_SETS]
                           [LEVEL_CONTEXTS][CDF_SIZE(2)];
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#endif
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#endif

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  aom_cdf_prob newmv_cdf[NEWMV_MODE_CONTEXTS][CDF_SIZE(2)];
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  aom_cdf_prob zeromv_cdf[GLOBALMV_MODE_CONTEXTS][CDF_SIZE(2)];
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  aom_cdf_prob refmv_cdf[REFMV_MODE_CONTEXTS][CDF_SIZE(2)];
  aom_cdf_prob drl_cdf[DRL_MODE_CONTEXTS][CDF_SIZE(2)];
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  aom_cdf_prob inter_compound_mode_cdf[INTER_MODE_CONTEXTS]
                                      [CDF_SIZE(INTER_COMPOUND_MODES)];
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  aom_cdf_prob compound_type_cdf[BLOCK_SIZES_ALL][CDF_SIZE(COMPOUND_TYPES)];
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  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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  aom_cdf_prob interintra_mode_cdf[BLOCK_SIZE_GROUPS]
                                  [CDF_SIZE(INTERINTRA_MODES)];
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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)];
  aom_cdf_prob obmc_cdf[BLOCK_SIZES_ALL][CDF_SIZE(2)];
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  aom_prob comp_inter_prob[COMP_INTER_CONTEXTS];
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  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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  aom_cdf_prob palette_y_mode_cdf[PALETTE_BLOCK_SIZES][PALETTE_Y_MODE_CONTEXTS]
                                 [CDF_SIZE(2)];
  aom_cdf_prob palette_uv_mode_cdf[PALETTE_UV_MODE_CONTEXTS][CDF_SIZE(2)];
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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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#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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  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)];
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#endif  // CONFIG_EXT_COMP_REFS
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  aom_prob single_ref_prob[REF_CONTEXTS][SINGLE_REFS - 1];
  aom_prob comp_ref_prob[REF_CONTEXTS][FWD_REFS - 1];
  aom_prob comp_bwdref_prob[REF_CONTEXTS][BWD_REFS - 1];
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  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)];
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  aom_cdf_prob txfm_partition_cdf[TXFM_PARTITION_CONTEXTS][CDF_SIZE(2)];
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#if CONFIG_JNT_COMP
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  aom_cdf_prob compound_index_cdf[COMP_INDEX_CONTEXTS][CDF_SIZE(2)];
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  aom_prob compound_index_probs[COMP_INDEX_CONTEXTS];
#endif  // CONFIG_JNT_COMP
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#if CONFIG_EXT_SKIP
  aom_cdf_prob skip_mode_cdfs[SKIP_CONTEXTS][CDF_SIZE(2)];
#endif  // CONFIG_EXT_SKIP
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  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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  nmv_context nmvc[NMV_CONTEXTS];
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#if CONFIG_INTRABC
  nmv_context ndvc;
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  aom_cdf_prob intrabc_cdf[CDF_SIZE(2)];
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#endif
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  int initialized;
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  struct segmentation_probs seg;
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#if CONFIG_FILTER_INTRA
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  aom_cdf_prob filter_intra_cdfs[TX_SIZES_ALL][CDF_SIZE(2)];
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  aom_cdf_prob filter_intra_mode_cdf[PLANE_TYPES][CDF_SIZE(FILTER_INTRA_MODES)];
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#endif  // CONFIG_FILTER_INTRA
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#if CONFIG_LOOP_RESTORATION
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  aom_cdf_prob switchable_restore_cdf[CDF_SIZE(RESTORE_SWITCHABLE_TYPES)];
  aom_cdf_prob wiener_restore_cdf[CDF_SIZE(2)];
  aom_cdf_prob sgrproj_restore_cdf[CDF_SIZE(2)];
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#endif  // CONFIG_LOOP_RESTORATION
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  aom_cdf_prob y_mode_cdf[BLOCK_SIZE_GROUPS][CDF_SIZE(INTRA_MODES)];
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  aom_cdf_prob uv_mode_cdf[INTRA_MODES][CDF_SIZE(UV_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.
*/
#if CONFIG_KF_CTX
  aom_cdf_prob kf_y_cdf[KF_MODE_CONTEXTS][KF_MODE_CONTEXTS]
                       [CDF_SIZE(INTRA_MODES)];
#else
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  aom_cdf_prob kf_y_cdf[INTRA_MODES][INTRA_MODES][CDF_SIZE(INTRA_MODES)];
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#endif
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#if CONFIG_EXT_INTRA_MOD
  aom_cdf_prob angle_delta_cdf[DIRECTIONAL_MODES]
                              [CDF_SIZE(2 * MAX_ANGLE_DELTA + 1)];
#endif  // CONFIG_EXT_INTRA_MOD

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  aom_cdf_prob tx_size_cdf[MAX_TX_CATS][TX_SIZE_CONTEXTS]
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                          [CDF_SIZE(MAX_TX_DEPTH + 1)];
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  aom_cdf_prob delta_q_cdf[CDF_SIZE(DELTA_Q_PROBS + 1)];
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#if CONFIG_EXT_DELTA_Q
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#if CONFIG_LOOPFILTER_LEVEL
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  aom_cdf_prob delta_lf_multi_cdf[FRAME_LF_COUNT][CDF_SIZE(DELTA_LF_PROBS + 1)];
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#endif  // CONFIG_LOOPFILTER_LEVEL
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  aom_cdf_prob delta_lf_cdf[CDF_SIZE(DELTA_LF_PROBS + 1)];
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#endif
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  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)];
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#if CONFIG_CFL
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  aom_cdf_prob cfl_sign_cdf[CDF_SIZE(CFL_JOINT_SIGNS)];
  aom_cdf_prob cfl_alpha_cdf[CFL_ALPHA_CONTEXTS][CDF_SIZE(CFL_ALPHABET_SIZE)];
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#endif
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#if CONFIG_LPF_SB
  aom_cdf_prob lpf_reuse_cdf[LPF_REUSE_CONTEXT][CDF_SIZE(2)];
  aom_cdf_prob lpf_delta_cdf[LPF_DELTA_CONTEXT][CDF_SIZE(DELTA_RANGE)];
  aom_cdf_prob lpf_sign_cdf[LPF_REUSE_CONTEXT][LPF_SIGN_CONTEXT][CDF_SIZE(2)];
#endif  // CONFIG_LPF_SB
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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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#if CONFIG_KF_CTX
  unsigned int kf_y_mode[KF_MODE_CONTEXTS][KF_MODE_CONTEXTS][INTRA_MODES];
#else
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  unsigned int kf_y_mode[INTRA_MODES][INTRA_MODES][INTRA_MODES];
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#endif
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  unsigned int angle_delta[DIRECTIONAL_MODES][2 * MAX_ANGLE_DELTA + 1];
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  unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
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  unsigned int uv_mode[INTRA_MODES][UV_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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  unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
                                [SWITCHABLE_FILTERS];
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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];
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  unsigned int eob_extra[TX_SIZES][PLANE_TYPES][EOB_COEF_CONTEXTS][2];
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  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];
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#if !CONFIG_LV_MAP_MULTI
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  unsigned int coeff_br[TX_SIZES][PLANE_TYPES][BASE_RANGE_SETS][LEVEL_CONTEXTS]
                       [2];
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  unsigned int coeff_lps[TX_SIZES][PLANE_TYPES][LEVEL_CONTEXTS][2];
#else
  unsigned int coeff_lps[TX_SIZES][PLANE_TYPES][BR_CDF_SIZE - 1][LEVEL_CONTEXTS]
                        [2];
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#endif
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#endif  // CONFIG_LV_MAP

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#if CONFIG_SYMBOLRATE
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  unsigned int superblock_num;
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  unsigned int coeff_num[COEFF_LEVELS];  // 0: zero coeff 1: non-zero coeff
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  unsigned int symbol_num[2];  // 0: entropy symbol 1: non-entropy symbol
#endif

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  unsigned int newmv_mode[NEWMV_MODE_CONTEXTS][2];
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  unsigned int zeromv_mode[GLOBALMV_MODE_CONTEXTS][2];
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  unsigned int refmv_mode[REFMV_MODE_CONTEXTS][2];
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  unsigned int drl_mode[DRL_MODE_CONTEXTS][2];
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  unsigned int inter_compound_mode[INTER_MODE_CONTEXTS][INTER_COMPOUND_MODES];
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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];
  unsigned int compound_interinter[BLOCK_SIZES_ALL][COMPOUND_TYPES];
  unsigned int motion_mode[BLOCK_SIZES_ALL][MOTION_MODES];
  unsigned int obmc[BLOCK_SIZES_ALL][2];
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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];
  unsigned int comp_ref[REF_CONTEXTS][FWD_REFS - 1][2];
  unsigned int comp_bwdref[REF_CONTEXTS][BWD_REFS - 1][2];
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  unsigned int txfm_partition[TXFM_PARTITION_CONTEXTS][2];
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#if CONFIG_EXT_SKIP
  unsigned int skip_mode[SKIP_MODE_CONTEXTS][2];
#endif  // CONFIG_EXT_SKIP
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  unsigned int skip[SKIP_CONTEXTS][2];
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#if CONFIG_JNT_COMP
  unsigned int compound_index[COMP_INDEX_CONTEXTS][2];
#endif  // CONFIG_JNT_COMP
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  unsigned int delta_q[DELTA_Q_PROBS][2];
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#if CONFIG_EXT_DELTA_Q
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#if CONFIG_LOOPFILTER_LEVEL
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  unsigned int delta_lf_multi[FRAME_LF_COUNT][DELTA_LF_PROBS][2];
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#endif  // CONFIG_LOOPFILTER_LEVEL
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  unsigned int delta_lf[DELTA_LF_PROBS][2];
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#endif
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#if CONFIG_ENTROPY_STATS
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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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#endif  // CONFIG_ENTROPY_STATS
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  struct seg_counts seg;
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#if CONFIG_FILTER_INTRA
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  unsigned int filter_intra_mode[PLANE_TYPES][FILTER_INTRA_MODES];
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  unsigned int filter_intra_tx[TX_SIZES_ALL][2];
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  unsigned int filter_intra_mode_ctx[KF_MODE_CONTEXTS][KF_MODE_CONTEXTS]
                                    [FILTER_INTRA_MODES];
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#endif  // CONFIG_FILTER_INTRA
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#if CONFIG_LPF_SB
  unsigned int lpf_reuse[LPF_REUSE_CONTEXT][2];
  unsigned int lpf_delta[LPF_DELTA_CONTEXT][DELTA_RANGE];
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  unsigned int lpf_sign[LPF_REUSE_CONTEXT][LPF_SIGN_CONTEXT][2];
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#endif  // CONFIG_LPF_SB
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} FRAME_COUNTS;

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#if CONFIG_KF_CTX
extern const aom_cdf_prob default_kf_y_mode_cdf[KF_MODE_CONTEXTS]
                                               [KF_MODE_CONTEXTS]
                                               [CDF_SIZE(INTRA_MODES)];
#else
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extern const aom_cdf_prob default_kf_y_mode_cdf[INTRA_MODES][INTRA_MODES]
                                               [CDF_SIZE(INTRA_MODES)];
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#endif
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#define USE_1D_16X16 1
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static const int av1_ext_tx_ind[EXT_TX_SET_TYPES][TX_TYPES] = {
  {
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      1, 3, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      1, 5, 6, 4, 0, 0, 0, 0, 0, 0, 2, 3, 0, 0, 0, 0,
  },
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  {
      1, 2, 3, 6, 4, 5, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0,
  },
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  {
      3, 4, 5, 8, 6, 7, 9, 10, 11, 0, 1, 2, 0, 0, 0, 0,
  },
  {
      7, 8, 9, 12, 10, 11, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6,
  },
};

static const int av1_ext_tx_inv[EXT_TX_SET_TYPES][TX_TYPES] = {
  {
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      9, 0, 3, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
  {
      9, 0, 10, 11, 3, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  },
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  {
      9, 0, 1, 2, 4, 5, 3, 6, 7, 8, 0, 0, 0, 0, 0, 0,
  },
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  {
      9, 10, 11, 0, 1, 2, 4, 5, 3, 6, 7, 8, 0, 0, 0, 0,
  },
  {
      9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 4, 5, 3, 6, 7, 8,
  },
};
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extern const aom_tree_index
    av1_interintra_mode_tree[TREE_SIZE(INTERINTRA_MODES)];
extern const aom_tree_index
    av1_inter_compound_mode_tree[TREE_SIZE(INTER_COMPOUND_MODES)];
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extern const aom_tree_index av1_compound_type_tree[TREE_SIZE(COMPOUND_TYPES)];
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extern const aom_tree_index av1_motion_mode_tree[TREE_SIZE(MOTION_MODES)];
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void av1_setup_frame_contexts(struct AV1Common *cm);
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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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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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// 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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#ifdef __cplusplus
}  // extern "C"
#endif

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#endif  // AV1_COMMON_ENTROPYMODE_H_