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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 
12 #ifndef VP8_ENCODER_MCOMP_H_
13 #define VP8_ENCODER_MCOMP_H_
14 
15 #include "block.h"
16 #include "vp8/common/variance.h"
17 
18 #ifdef __cplusplus
19 extern "C" {
20 #endif
21 
22 #ifdef VP8_ENTROPY_STATS
23 extern void init_mv_ref_counts();
24 extern void accum_mv_refs(MB_PREDICTION_MODE, const int near_mv_ref_cts[4]);
25 #endif
26 
27 
28 /* The maximum number of steps in a step search given the largest allowed
29  * initial step
30  */
31 #define MAX_MVSEARCH_STEPS 8
32 
33 /* Max full pel mv specified in 1 pel units */
34 #define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)
35 
36 /* Maximum size of the first step in full pel units */
37 #define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))
38 
39 extern void print_mode_context(void);
40 extern int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight);
41 extern void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride);
42 extern void vp8_init3smotion_compensation(MACROBLOCK *x,  int stride);
43 
44 
45 extern int vp8_hex_search
46 (
47     MACROBLOCK *x,
48     BLOCK *b,
49     BLOCKD *d,
50     int_mv *ref_mv,
51     int_mv *best_mv,
52     int search_param,
53     int error_per_bit,
54     const vp8_variance_fn_ptr_t *vf,
55     int *mvsadcost[2],
56     int *mvcost[2],
57     int_mv *center_mv
58 );
59 
60 typedef int (fractional_mv_step_fp)
61     (MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *bestmv, int_mv *ref_mv,
62      int error_per_bit, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2],
63      int *distortion, unsigned int *sse);
64 
65 extern fractional_mv_step_fp vp8_find_best_sub_pixel_step_iteratively;
66 extern fractional_mv_step_fp vp8_find_best_sub_pixel_step;
67 extern fractional_mv_step_fp vp8_find_best_half_pixel_step;
68 extern fractional_mv_step_fp vp8_skip_fractional_mv_step;
69 
70 typedef int (*vp8_full_search_fn_t)
71     (
72      MACROBLOCK *x,
73      BLOCK *b,
74      BLOCKD *d,
75      int_mv *ref_mv,
76      int sad_per_bit,
77      int distance,
78      vp8_variance_fn_ptr_t *fn_ptr,
79      int *mvcost[2],
80      int_mv *center_mv
81     );
82 
83 typedef int (*vp8_refining_search_fn_t)
84     (
85      MACROBLOCK *x,
86      BLOCK *b,
87      BLOCKD *d,
88      int_mv *ref_mv,
89      int sad_per_bit,
90      int distance,
91      vp8_variance_fn_ptr_t *fn_ptr,
92      int *mvcost[2],
93      int_mv *center_mv
94     );
95 
96 typedef int (*vp8_diamond_search_fn_t)
97     (
98      MACROBLOCK *x,
99      BLOCK *b,
100      BLOCKD *d,
101      int_mv *ref_mv,
102      int_mv *best_mv,
103      int search_param,
104      int sad_per_bit,
105      int *num00,
106      vp8_variance_fn_ptr_t *fn_ptr,
107      int *mvcost[2],
108      int_mv *center_mv
109     );
110 
111 #ifdef __cplusplus
112 }  // extern "C"
113 #endif
114 
115 #endif  // VP8_ENCODER_MCOMP_H_
116