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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef VP9_COMMON_VP9_ENTROPYMODE_H_
     12 #define VP9_COMMON_VP9_ENTROPYMODE_H_
     13 
     14 #include "vp9/common/vp9_entropy.h"
     15 #include "vp9/common/vp9_entropymv.h"
     16 #include "vp9/common/vp9_filter.h"
     17 #include "vpx_dsp/vpx_filter.h"
     18 
     19 #ifdef __cplusplus
     20 extern "C" {
     21 #endif
     22 
     23 #define BLOCK_SIZE_GROUPS 4
     24 
     25 #define TX_SIZE_CONTEXTS 2
     26 
     27 #define INTER_OFFSET(mode) ((mode)-NEARESTMV)
     28 
     29 struct VP9Common;
     30 
     31 struct tx_probs {
     32   vpx_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
     33   vpx_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
     34   vpx_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
     35 };
     36 
     37 struct tx_counts {
     38   unsigned int p32x32[TX_SIZE_CONTEXTS][TX_SIZES];
     39   unsigned int p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 1];
     40   unsigned int p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 2];
     41   unsigned int tx_totals[TX_SIZES];
     42 };
     43 
     44 typedef struct frame_contexts {
     45   vpx_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
     46   vpx_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
     47   vpx_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
     48   vp9_coeff_probs_model coef_probs[TX_SIZES][PLANE_TYPES];
     49   vpx_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
     50                                  [SWITCHABLE_FILTERS - 1];
     51   vpx_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
     52   vpx_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
     53   vpx_prob comp_inter_prob[COMP_INTER_CONTEXTS];
     54   vpx_prob single_ref_prob[REF_CONTEXTS][2];
     55   vpx_prob comp_ref_prob[REF_CONTEXTS];
     56   struct tx_probs tx_probs;
     57   vpx_prob skip_probs[SKIP_CONTEXTS];
     58   nmv_context nmvc;
     59   int initialized;
     60 } FRAME_CONTEXT;
     61 
     62 typedef struct FRAME_COUNTS {
     63   unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
     64   unsigned int uv_mode[INTRA_MODES][INTRA_MODES];
     65   unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES];
     66   vp9_coeff_count_model coef[TX_SIZES][PLANE_TYPES];
     67   unsigned int eob_branch[TX_SIZES][PLANE_TYPES][REF_TYPES][COEF_BANDS]
     68                          [COEFF_CONTEXTS];
     69   unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
     70                                 [SWITCHABLE_FILTERS];
     71   unsigned int inter_mode[INTER_MODE_CONTEXTS][INTER_MODES];
     72   unsigned int intra_inter[INTRA_INTER_CONTEXTS][2];
     73   unsigned int comp_inter[COMP_INTER_CONTEXTS][2];
     74   unsigned int single_ref[REF_CONTEXTS][2][2];
     75   unsigned int comp_ref[REF_CONTEXTS][2];
     76   struct tx_counts tx;
     77   unsigned int skip[SKIP_CONTEXTS][2];
     78   nmv_context_counts mv;
     79 } FRAME_COUNTS;
     80 
     81 extern const vpx_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
     82 extern const vpx_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
     83                                         [INTRA_MODES - 1];
     84 extern const vpx_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
     85                                             [PARTITION_TYPES - 1];
     86 extern const vpx_tree_index vp9_intra_mode_tree[TREE_SIZE(INTRA_MODES)];
     87 extern const vpx_tree_index vp9_inter_mode_tree[TREE_SIZE(INTER_MODES)];
     88 extern const vpx_tree_index vp9_partition_tree[TREE_SIZE(PARTITION_TYPES)];
     89 extern const vpx_tree_index
     90     vp9_switchable_interp_tree[TREE_SIZE(SWITCHABLE_FILTERS)];
     91 
     92 void vp9_setup_past_independence(struct VP9Common *cm);
     93 
     94 void vp9_adapt_mode_probs(struct VP9Common *cm);
     95 
     96 void tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
     97                                       unsigned int (*ct_32x32p)[2]);
     98 void tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
     99                                       unsigned int (*ct_16x16p)[2]);
    100 void tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
    101                                     unsigned int (*ct_8x8p)[2]);
    102 
    103 #ifdef __cplusplus
    104 }  // extern "C"
    105 #endif
    106 
    107 #endif  // VP9_COMMON_VP9_ENTROPYMODE_H_
    108