1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/*
* 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.
*/
#ifndef VP8_COMMON_FINDNEARMV_H_
#define VP8_COMMON_FINDNEARMV_H_
#include "mv.h"
#include "blockd.h"
#include "modecont.h"
#include "treecoder.h"
#ifdef __cplusplus
extern "C" {
#endif
static void mv_bias(int refmb_ref_frame_sign_bias, int refframe, int_mv *mvp,
const int *ref_frame_sign_bias)
{
if (refmb_ref_frame_sign_bias != ref_frame_sign_bias[refframe])
{
mvp->as_mv.row *= -1;
mvp->as_mv.col *= -1;
}
}
#define LEFT_TOP_MARGIN (16 << 3)
#define RIGHT_BOTTOM_MARGIN (16 << 3)
static void vp8_clamp_mv2(int_mv *mv, const MACROBLOCKD *xd)
{
if (mv->as_mv.col < (xd->mb_to_left_edge - LEFT_TOP_MARGIN))
mv->as_mv.col = xd->mb_to_left_edge - LEFT_TOP_MARGIN;
else if (mv->as_mv.col > xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN)
mv->as_mv.col = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN;
if (mv->as_mv.row < (xd->mb_to_top_edge - LEFT_TOP_MARGIN))
mv->as_mv.row = xd->mb_to_top_edge - LEFT_TOP_MARGIN;
else if (mv->as_mv.row > xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN)
mv->as_mv.row = xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN;
}
static void vp8_clamp_mv(int_mv *mv, int mb_to_left_edge, int mb_to_right_edge,
int mb_to_top_edge, int mb_to_bottom_edge)
{
mv->as_mv.col = (mv->as_mv.col < mb_to_left_edge) ?
mb_to_left_edge : mv->as_mv.col;
mv->as_mv.col = (mv->as_mv.col > mb_to_right_edge) ?
mb_to_right_edge : mv->as_mv.col;
mv->as_mv.row = (mv->as_mv.row < mb_to_top_edge) ?
mb_to_top_edge : mv->as_mv.row;
mv->as_mv.row = (mv->as_mv.row > mb_to_bottom_edge) ?
mb_to_bottom_edge : mv->as_mv.row;
}
static unsigned int vp8_check_mv_bounds(int_mv *mv, int mb_to_left_edge,
int mb_to_right_edge, int mb_to_top_edge,
int mb_to_bottom_edge)
{
unsigned int need_to_clamp;
need_to_clamp = (mv->as_mv.col < mb_to_left_edge);
need_to_clamp |= (mv->as_mv.col > mb_to_right_edge);
need_to_clamp |= (mv->as_mv.row < mb_to_top_edge);
need_to_clamp |= (mv->as_mv.row > mb_to_bottom_edge);
return need_to_clamp;
}
void vp8_find_near_mvs
(
MACROBLOCKD *xd,
const MODE_INFO *here,
int_mv *nearest, int_mv *nearby, int_mv *best,
int near_mv_ref_cts[4],
int refframe,
int *ref_frame_sign_bias
);
int vp8_find_near_mvs_bias
(
MACROBLOCKD *xd,
const MODE_INFO *here,
int_mv mode_mv_sb[2][MB_MODE_COUNT],
int_mv best_mv_sb[2],
int cnt[4],
int refframe,
int *ref_frame_sign_bias
);
vp8_prob *vp8_mv_ref_probs(
vp8_prob p[VP8_MVREFS-1], const int near_mv_ref_ct[4]
);
extern const unsigned char vp8_mbsplit_offset[4][16];
static int left_block_mv(const MODE_INFO *cur_mb, int b)
{
if (!(b & 3))
{
/* On L edge, get from MB to left of us */
--cur_mb;
if(cur_mb->mbmi.mode != SPLITMV)
return cur_mb->mbmi.mv.as_int;
b += 4;
}
return (cur_mb->bmi + b - 1)->mv.as_int;
}
static int above_block_mv(const MODE_INFO *cur_mb, int b, int mi_stride)
{
if (!(b >> 2))
{
/* On top edge, get from MB above us */
cur_mb -= mi_stride;
if(cur_mb->mbmi.mode != SPLITMV)
return cur_mb->mbmi.mv.as_int;
b += 16;
}
return (cur_mb->bmi + (b - 4))->mv.as_int;
}
static B_PREDICTION_MODE left_block_mode(const MODE_INFO *cur_mb, int b)
{
if (!(b & 3))
{
/* On L edge, get from MB to left of us */
--cur_mb;
switch (cur_mb->mbmi.mode)
{
case B_PRED:
return (cur_mb->bmi + b + 3)->as_mode;
case DC_PRED:
return B_DC_PRED;
case V_PRED:
return B_VE_PRED;
case H_PRED:
return B_HE_PRED;
case TM_PRED:
return B_TM_PRED;
default:
return B_DC_PRED;
}
}
return (cur_mb->bmi + b - 1)->as_mode;
}
static B_PREDICTION_MODE above_block_mode(const MODE_INFO *cur_mb, int b, int mi_stride)
{
if (!(b >> 2))
{
/* On top edge, get from MB above us */
cur_mb -= mi_stride;
switch (cur_mb->mbmi.mode)
{
case B_PRED:
return (cur_mb->bmi + b + 12)->as_mode;
case DC_PRED:
return B_DC_PRED;
case V_PRED:
return B_VE_PRED;
case H_PRED:
return B_HE_PRED;
case TM_PRED:
return B_TM_PRED;
default:
return B_DC_PRED;
}
}
return (cur_mb->bmi + b - 4)->as_mode;
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP8_COMMON_FINDNEARMV_H_
|
