entropymode.h 5.19 KB
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/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

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#ifndef VP10_COMMON_ENTROPYMODE_H_
#define VP10_COMMON_ENTROPYMODE_H_
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#include "vp10/common/entropy.h"
#include "vp10/common/entropymv.h"
#include "vp10/common/filter.h"
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#include "vpx_dsp/vpx_filter.h"

#ifdef __cplusplus
extern "C" {
#endif

#define BLOCK_SIZE_GROUPS 4

#define TX_SIZE_CONTEXTS 2

#define INTER_OFFSET(mode) ((mode) - NEARESTMV)

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#define PALETTE_COLOR_CONTEXTS 16
#define PALETTE_MAX_SIZE 8
#define PALETTE_BLOCK_SIZES (BLOCK_64X64 - BLOCK_8X8 + 1)
#define PALETTE_Y_MODE_CONTEXTS 3


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struct VP10Common;
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struct tx_probs {
  vpx_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
  vpx_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
  vpx_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
};

struct tx_counts {
  unsigned int p32x32[TX_SIZE_CONTEXTS][TX_SIZES];
  unsigned int p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 1];
  unsigned int p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 2];
  unsigned int tx_totals[TX_SIZES];
};

typedef struct frame_contexts {
  vpx_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
  vpx_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
  vpx_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
  vp10_coeff_probs_model coef_probs[TX_SIZES][PLANE_TYPES];
  vpx_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
                                 [SWITCHABLE_FILTERS - 1];
  vpx_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
  vpx_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
  vpx_prob comp_inter_prob[COMP_INTER_CONTEXTS];
  vpx_prob single_ref_prob[REF_CONTEXTS][2];
  vpx_prob comp_ref_prob[REF_CONTEXTS];
  struct tx_probs tx_probs;
  vpx_prob skip_probs[SKIP_CONTEXTS];
  nmv_context nmvc;
  int initialized;
} FRAME_CONTEXT;

typedef struct FRAME_COUNTS {
  unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
  unsigned int uv_mode[INTRA_MODES][INTRA_MODES];
  unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES];
  vp10_coeff_count_model coef[TX_SIZES][PLANE_TYPES];
  unsigned int eob_branch[TX_SIZES][PLANE_TYPES][REF_TYPES]
                         [COEF_BANDS][COEFF_CONTEXTS];
  unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
                                [SWITCHABLE_FILTERS];
  unsigned int inter_mode[INTER_MODE_CONTEXTS][INTER_MODES];
  unsigned int intra_inter[INTRA_INTER_CONTEXTS][2];
  unsigned int comp_inter[COMP_INTER_CONTEXTS][2];
  unsigned int single_ref[REF_CONTEXTS][2][2];
  unsigned int comp_ref[REF_CONTEXTS][2];
  struct tx_counts tx;
  unsigned int skip[SKIP_CONTEXTS][2];
  nmv_context_counts mv;
} FRAME_COUNTS;

extern const vpx_prob vp10_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
extern const vpx_prob vp10_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
                                        [INTRA_MODES - 1];
extern const vpx_prob vp10_kf_partition_probs[PARTITION_CONTEXTS]
                                            [PARTITION_TYPES - 1];
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extern const vpx_prob
vp10_default_palette_y_mode_prob[PALETTE_BLOCK_SIZES][PALETTE_Y_MODE_CONTEXTS];
extern const vpx_prob
vp10_default_palette_y_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1];
extern const vpx_prob
vp10_default_palette_uv_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1];
extern const vpx_prob vp10_default_palette_y_color_prob
[PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1];
extern const vpx_prob vp10_default_palette_uv_color_prob
[PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1];

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extern const vpx_tree_index vp10_intra_mode_tree[TREE_SIZE(INTRA_MODES)];
extern const vpx_tree_index vp10_inter_mode_tree[TREE_SIZE(INTER_MODES)];
extern const vpx_tree_index vp10_partition_tree[TREE_SIZE(PARTITION_TYPES)];
extern const vpx_tree_index vp10_switchable_interp_tree
                                [TREE_SIZE(SWITCHABLE_FILTERS)];
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extern const vpx_tree_index vp10_palette_size_tree[TREE_SIZE(PALETTE_SIZES)];
extern const vpx_tree_index
vp10_palette_color_tree[PALETTE_MAX_SIZE - 1][TREE_SIZE(PALETTE_COLORS)];

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void vp10_setup_past_independence(struct VP10Common *cm);
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void vp10_adapt_intra_frame_probs(struct VP10Common *cm);
void vp10_adapt_inter_frame_probs(struct VP10Common *cm);
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void vp10_tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
                                      unsigned int (*ct_32x32p)[2]);
void vp10_tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
                                      unsigned int (*ct_16x16p)[2]);
void vp10_tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
                                    unsigned int (*ct_8x8p)[2]);

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static INLINE int vp10_ceil_log2(int n) {
  int i = 1, p = 2;
  while (p < n) {
    i++;
    p = p << 1;
  }
  return i;
}

int vp10_get_palette_color_context(const uint8_t *color_map, int cols,
                                   int r, int c, int n, int *color_order);

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

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#endif  // VP10_COMMON_ENTROPYMODE_H_