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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 VP8_COMMON_ENTROPYMODE_H_
     12 #define VP8_COMMON_ENTROPYMODE_H_
     13 
     14 #include "onyxc_int.h"
     15 #include "treecoder.h"
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 typedef enum {
     22   SUBMVREF_NORMAL,
     23   SUBMVREF_LEFT_ZED,
     24   SUBMVREF_ABOVE_ZED,
     25   SUBMVREF_LEFT_ABOVE_SAME,
     26   SUBMVREF_LEFT_ABOVE_ZED
     27 } sumvfref_t;
     28 
     29 typedef int vp8_mbsplit[16];
     30 
     31 #define VP8_NUMMBSPLITS 4
     32 
     33 extern const vp8_mbsplit vp8_mbsplits[VP8_NUMMBSPLITS];
     34 
     35 extern const int vp8_mbsplit_count[VP8_NUMMBSPLITS]; /* # of subsets */
     36 
     37 extern const vp8_prob vp8_mbsplit_probs[VP8_NUMMBSPLITS - 1];
     38 
     39 extern int vp8_mv_cont(const int_mv *l, const int_mv *a);
     40 #define SUBMVREF_COUNT 5
     41 extern const vp8_prob vp8_sub_mv_ref_prob2[SUBMVREF_COUNT][VP8_SUBMVREFS - 1];
     42 
     43 extern const unsigned int vp8_kf_default_bmode_counts[VP8_BINTRAMODES]
     44                                                      [VP8_BINTRAMODES]
     45                                                      [VP8_BINTRAMODES];
     46 
     47 extern const vp8_tree_index vp8_bmode_tree[];
     48 
     49 extern const vp8_tree_index vp8_ymode_tree[];
     50 extern const vp8_tree_index vp8_kf_ymode_tree[];
     51 extern const vp8_tree_index vp8_uv_mode_tree[];
     52 
     53 extern const vp8_tree_index vp8_mbsplit_tree[];
     54 extern const vp8_tree_index vp8_mv_ref_tree[];
     55 extern const vp8_tree_index vp8_sub_mv_ref_tree[];
     56 
     57 extern const struct vp8_token_struct vp8_bmode_encodings[VP8_BINTRAMODES];
     58 extern const struct vp8_token_struct vp8_ymode_encodings[VP8_YMODES];
     59 extern const struct vp8_token_struct vp8_kf_ymode_encodings[VP8_YMODES];
     60 extern const struct vp8_token_struct vp8_uv_mode_encodings[VP8_UV_MODES];
     61 extern const struct vp8_token_struct vp8_mbsplit_encodings[VP8_NUMMBSPLITS];
     62 
     63 /* Inter mode values do not start at zero */
     64 
     65 extern const struct vp8_token_struct vp8_mv_ref_encoding_array[VP8_MVREFS];
     66 extern const struct vp8_token_struct
     67     vp8_sub_mv_ref_encoding_array[VP8_SUBMVREFS];
     68 
     69 extern const vp8_tree_index vp8_small_mvtree[];
     70 
     71 extern const struct vp8_token_struct vp8_small_mvencodings[8];
     72 
     73 /* Key frame default mode probs */
     74 extern const vp8_prob vp8_kf_bmode_prob[VP8_BINTRAMODES][VP8_BINTRAMODES]
     75                                        [VP8_BINTRAMODES - 1];
     76 extern const vp8_prob vp8_kf_uv_mode_prob[VP8_UV_MODES - 1];
     77 extern const vp8_prob vp8_kf_ymode_prob[VP8_YMODES - 1];
     78 
     79 void vp8_init_mbmode_probs(VP8_COMMON *x);
     80 void vp8_default_bmode_probs(vp8_prob dest[VP8_BINTRAMODES - 1]);
     81 void vp8_kf_default_bmode_probs(
     82     vp8_prob dest[VP8_BINTRAMODES][VP8_BINTRAMODES][VP8_BINTRAMODES - 1]);
     83 
     84 #ifdef __cplusplus
     85 }  // extern "C"
     86 #endif
     87 
     88 #endif  // VP8_COMMON_ENTROPYMODE_H_
     89