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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_blockd.h"
     15 #include "vp9/common/vp9_treecoder.h"
     16 
     17 #define TX_SIZE_CONTEXTS 2
     18 #define SWITCHABLE_FILTERS 3   // number of switchable filters
     19 #define SWITCHABLE_FILTER_CONTEXTS (SWITCHABLE_FILTERS + 1)
     20 
     21 // #define MODE_STATS
     22 
     23 struct VP9Common;
     24 
     25 struct tx_probs {
     26   vp9_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
     27   vp9_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
     28   vp9_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
     29 };
     30 
     31 struct tx_counts {
     32   unsigned int p32x32[TX_SIZE_CONTEXTS][TX_SIZES];
     33   unsigned int p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 1];
     34   unsigned int p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 2];
     35 };
     36 
     37 extern const vp9_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
     38 extern const vp9_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
     39                                         [INTRA_MODES - 1];
     40 
     41 extern const vp9_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
     42                                             [PARTITION_TYPES - 1];
     43 
     44 extern const vp9_tree_index vp9_intra_mode_tree[TREE_SIZE(INTRA_MODES)];
     45 extern struct vp9_token vp9_intra_mode_encodings[INTRA_MODES];
     46 
     47 extern const vp9_tree_index vp9_inter_mode_tree[TREE_SIZE(INTER_MODES)];
     48 extern struct vp9_token vp9_inter_mode_encodings[INTER_MODES];
     49 
     50 extern const vp9_tree_index vp9_partition_tree[TREE_SIZE(PARTITION_TYPES)];
     51 extern struct vp9_token vp9_partition_encodings[PARTITION_TYPES];
     52 
     53 extern const vp9_tree_index vp9_switchable_interp_tree
     54                                 [TREE_SIZE(SWITCHABLE_FILTERS)];
     55 extern struct vp9_token vp9_switchable_interp_encodings[SWITCHABLE_FILTERS];
     56 
     57 void vp9_entropy_mode_init();
     58 
     59 void vp9_setup_past_independence(struct VP9Common *cm);
     60 
     61 void vp9_init_mbmode_probs(struct VP9Common *cm);
     62 
     63 void vp9_adapt_mode_probs(struct VP9Common *cm);
     64 
     65 void tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
     66                                       unsigned int (*ct_32x32p)[2]);
     67 void tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
     68                                       unsigned int (*ct_16x16p)[2]);
     69 void tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
     70                                     unsigned int (*ct_8x8p)[2]);
     71 
     72 #endif  // VP9_COMMON_VP9_ENTROPYMODE_H_
     73