30 |
* |
* |
31 |
*************************************************************************/ |
*************************************************************************/ |
32 |
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33 |
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/*************************************************************************** |
34 |
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* * |
35 |
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* Revision history: * |
36 |
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* * |
37 |
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* 29.06.2002 get_pmvdata() bounding * |
38 |
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* * |
39 |
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***************************************************************************/ |
40 |
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41 |
#ifndef _MBPREDICTION_H_ |
#ifndef _MBPREDICTION_H_ |
42 |
#define _MBPREDICTION_H_ |
#define _MBPREDICTION_H_ |
43 |
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53 |
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54 |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
55 |
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56 |
void MBPrediction( |
void MBPrediction(FRAMEINFO * frame, /* <-- The parameter for ACDC and MV prediction */ |
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FRAMEINFO *frame, /* <-- The parameter for ACDC and MV prediction */ |
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57 |
uint32_t x_pos, /* <-- The x position of the MB to be searched */ |
uint32_t x_pos, /* <-- The x position of the MB to be searched */ |
58 |
uint32_t y_pos, /* <-- The y position of the MB to be searched */ |
uint32_t y_pos, /* <-- The y position of the MB to be searched */ |
59 |
uint32_t x_dim, /* <-- Number of macroblocks in a row */ |
uint32_t x_dim, /* <-- Number of macroblocks in a row */ |
65 |
uint32_t iDcScaler, |
uint32_t iDcScaler, |
66 |
int16_t predictors[8]); |
int16_t predictors[8]); |
67 |
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68 |
void predict_acdc(MACROBLOCK *pMBs, |
void predict_acdc(MACROBLOCK *pMBs, |
69 |
uint32_t x, |
uint32_t x, |
70 |
uint32_t y, |
uint32_t y, |
73 |
int16_t qcoeff[64], |
int16_t qcoeff[64], |
74 |
uint32_t current_quant, |
uint32_t current_quant, |
75 |
int32_t iDcScaler, |
int32_t iDcScaler, |
76 |
int16_t predictors[8]); |
int16_t predictors[8], |
77 |
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const int bound); |
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/* get_pmvdata returns the median predictor and nothing else */ |
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static __inline VECTOR get_pmv(const MACROBLOCK * const pMBs, |
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const uint32_t x, |
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const uint32_t y, |
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const uint32_t x_dim, |
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const uint32_t block) |
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{ |
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int xin1, xin2, xin3; |
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int yin1, yin2, yin3; |
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int vec1, vec2, vec3; |
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VECTOR lneigh,tneigh,trneigh; /* left neighbour, top neighbour, topright neighbour */ |
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VECTOR median; |
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static VECTOR zeroMV = {0,0}; |
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uint32_t index = x + y * x_dim; |
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/* first row (special case) */ |
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if (y == 0 && (block == 0 || block == 1)) |
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{ |
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if ((x == 0) && (block == 0)) // first column, first block |
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{ |
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return zeroMV; |
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} |
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if (block == 1) // second block; has only a left neighbour |
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{ |
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return pMBs[index].mvs[0]; |
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} |
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else /* block==0, but x!=0, so again, there is a left neighbour*/ |
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{ |
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return pMBs[index-1].mvs[1]; |
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} |
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} |
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78 |
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79 |
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static const VECTOR zeroMV = { 0, 0 }; |
80 |
/* |
/* |
81 |
* MODE_INTER, vm18 page 48 |
* MODE_INTER, vm18 page 48 |
82 |
* MODE_INTER4V vm18 page 51 |
* MODE_INTER4V vm18 page 51 |
90 |
* [ | 3 ] [ 2 | 3 ] [ | ] |
* [ | 3 ] [ 2 | 3 ] [ | ] |
91 |
*/ |
*/ |
92 |
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93 |
switch (block) |
static __inline VECTOR |
94 |
{ |
get_pmv2(const MACROBLOCK * const mbs, |
95 |
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const int mb_width, |
96 |
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const int bound, |
97 |
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const int x, |
98 |
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const int y, |
99 |
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const int block) |
100 |
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{ |
101 |
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int lx, ly, lz; /* left */ |
102 |
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int tx, ty, tz; /* top */ |
103 |
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int rx, ry, rz; /* top-right */ |
104 |
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int lpos, tpos, rpos; |
105 |
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int num_cand = 0, last_cand = 1; |
106 |
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107 |
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VECTOR pmv[4]; /* left neighbour, top neighbour, top-right neighbour */ |
108 |
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109 |
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switch (block) { |
110 |
case 0: |
case 0: |
111 |
xin1 = x - 1; yin1 = y; vec1 = 1; /* left */ |
lx = x - 1; ly = y; lz = 1; |
112 |
xin2 = x; yin2 = y - 1; vec2 = 2; /* top */ |
tx = x; ty = y - 1; tz = 2; |
113 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; /* top right */ |
rx = x + 1; ry = y - 1; rz = 2; |
114 |
break; |
break; |
115 |
case 1: |
case 1: |
116 |
xin1 = x; yin1 = y; vec1 = 0; |
lx = x; ly = y; lz = 0; |
117 |
xin2 = x; yin2 = y - 1; vec2 = 3; |
tx = x; ty = y - 1; tz = 3; |
118 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; |
rx = x + 1; ry = y - 1; rz = 2; |
119 |
break; |
break; |
120 |
case 2: |
case 2: |
121 |
xin1 = x - 1; yin1 = y; vec1 = 3; |
lx = x - 1; ly = y; lz = 3; |
122 |
xin2 = x; yin2 = y; vec2 = 0; |
tx = x; ty = y; tz = 0; |
123 |
xin3 = x; yin3 = y; vec3 = 1; |
rx = x; ry = y; rz = 1; |
124 |
break; |
break; |
125 |
default: |
default: |
126 |
xin1 = x; yin1 = y; vec1 = 2; |
lx = x; ly = y; lz = 2; |
127 |
xin2 = x; yin2 = y; vec2 = 0; |
tx = x; ty = y; tz = 0; |
128 |
xin3 = x; yin3 = y; vec3 = 1; |
rx = x; ry = y; rz = 1; |
129 |
} |
} |
130 |
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131 |
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lpos = lx + ly * mb_width; |
132 |
if (xin1 < 0 || /* yin1 < 0 || */ xin1 >= (int32_t)x_dim) |
rpos = rx + ry * mb_width; |
133 |
{ |
tpos = tx + ty * mb_width; |
134 |
lneigh = zeroMV; |
|
135 |
} |
if (lpos >= bound && lx >= 0) { |
136 |
else |
num_cand++; |
137 |
{ |
pmv[1] = mbs[lpos].mvs[lz]; |
138 |
lneigh = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
} else pmv[1] = zeroMV; |
139 |
} |
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140 |
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if (tpos >= bound) { |
141 |
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num_cand++; |
142 |
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last_cand = 2; |
143 |
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pmv[2] = mbs[tpos].mvs[tz]; |
144 |
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} else pmv[2] = zeroMV; |
145 |
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146 |
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if (rpos >= bound && rx < mb_width) { |
147 |
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num_cand++; |
148 |
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last_cand = 3; |
149 |
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pmv[3] = mbs[rpos].mvs[rz]; |
150 |
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} else pmv[3] = zeroMV; |
151 |
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152 |
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/* If there're more than one candidate, we return the median vector */ |
153 |
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154 |
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if (num_cand > 1) { |
155 |
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/* set median */ |
156 |
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pmv[0].x = |
157 |
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MIN(MAX(pmv[1].x, pmv[2].x), |
158 |
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MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
159 |
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pmv[0].y = |
160 |
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MIN(MAX(pmv[1].y, pmv[2].y), |
161 |
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MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
162 |
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return pmv[0]; |
163 |
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} |
164 |
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165 |
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return pmv[last_cand]; /* no point calculating median mv */ |
166 |
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} |
167 |
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168 |
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static __inline VECTOR |
169 |
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get_qpmv2(const MACROBLOCK * const mbs, |
170 |
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const int mb_width, |
171 |
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const int bound, |
172 |
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const int x, |
173 |
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const int y, |
174 |
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const int block) |
175 |
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{ |
176 |
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int lx, ly, lz; /* left */ |
177 |
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int tx, ty, tz; /* top */ |
178 |
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int rx, ry, rz; /* top-right */ |
179 |
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int lpos, tpos, rpos; |
180 |
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int num_cand = 0, last_cand = 1; |
181 |
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182 |
if (xin2 < 0 || /* yin2 < 0 || */ xin2 >= (int32_t)x_dim) |
VECTOR pmv[4]; /* left neighbour, top neighbour, top-right neighbour */ |
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{ |
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tneigh = zeroMV; |
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} |
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else |
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{ |
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tneigh = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
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} |
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183 |
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184 |
if (xin3 < 0 || /* yin3 < 0 || */ xin3 >= (int32_t)x_dim) |
switch (block) { |
185 |
{ |
case 0: |
186 |
trneigh = zeroMV; |
lx = x - 1; ly = y; lz = 1; |
187 |
} |
tx = x; ty = y - 1; tz = 2; |
188 |
else |
rx = x + 1; ry = y - 1; rz = 2; |
189 |
{ |
break; |
190 |
trneigh = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
case 1: |
191 |
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lx = x; ly = y; lz = 0; |
192 |
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tx = x; ty = y - 1; tz = 3; |
193 |
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rx = x + 1; ry = y - 1; rz = 2; |
194 |
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break; |
195 |
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case 2: |
196 |
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lx = x - 1; ly = y; lz = 3; |
197 |
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tx = x; ty = y; tz = 0; |
198 |
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rx = x; ry = y; rz = 1; |
199 |
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break; |
200 |
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default: |
201 |
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lx = x; ly = y; lz = 2; |
202 |
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tx = x; ty = y; tz = 0; |
203 |
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rx = x; ry = y; rz = 1; |
204 |
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} |
205 |
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206 |
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lpos = lx + ly * mb_width; |
207 |
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rpos = rx + ry * mb_width; |
208 |
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tpos = tx + ty * mb_width; |
209 |
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210 |
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if (lpos >= bound && lx >= 0) { |
211 |
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num_cand++; |
212 |
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pmv[1] = mbs[lpos].qmvs[lz]; |
213 |
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} else pmv[1] = zeroMV; |
214 |
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215 |
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if (tpos >= bound) { |
216 |
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num_cand++; |
217 |
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last_cand = 2; |
218 |
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pmv[2] = mbs[tpos].qmvs[tz]; |
219 |
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} else pmv[2] = zeroMV; |
220 |
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221 |
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if (rpos >= bound && rx < mb_width) { |
222 |
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num_cand++; |
223 |
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last_cand = 3; |
224 |
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pmv[3] = mbs[rpos].qmvs[rz]; |
225 |
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} else pmv[3] = zeroMV; |
226 |
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227 |
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/* If there're more than one candidate, we return the median vector */ |
228 |
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229 |
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if (num_cand > 1) { |
230 |
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/* set median */ |
231 |
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pmv[0].x = |
232 |
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MIN(MAX(pmv[1].x, pmv[2].x), |
233 |
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MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
234 |
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pmv[0].y = |
235 |
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MIN(MAX(pmv[1].y, pmv[2].y), |
236 |
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MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
237 |
|
return pmv[0]; |
238 |
} |
} |
239 |
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|
240 |
/* median,minimum */ |
return pmv[last_cand]; /* no point calculating median mv */ |
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median.x = MIN(MAX(lneigh.x, tneigh.x), MIN(MAX(tneigh.x, trneigh.x), MAX(lneigh.x, trneigh.x))); |
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median.y = MIN(MAX(lneigh.y, tneigh.y), MIN(MAX(tneigh.y, trneigh.y), MAX(lneigh.y, trneigh.y))); |
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return median; |
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241 |
} |
} |
242 |
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/* This is somehow a copy of get_pmv, but returning all MVs and Minimum SAD |
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instead of only Median MV */ |
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static __inline int get_pmvdata(const MACROBLOCK * const pMBs, |
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const uint32_t x, const uint32_t y, |
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const uint32_t x_dim, |
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const uint32_t block, |
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VECTOR * const pmv, |
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int32_t * const psad) |
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{ |
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243 |
/* |
/* |
244 |
* pmv are filled with: |
* pmv are filled with: |
245 |
* [0]: Median (or whatever is correct in a special case) |
* [0]: Median (or whatever is correct in a special case) |
253 |
* [3]: topright neighbour's SAD |
* [3]: topright neighbour's SAD |
254 |
*/ |
*/ |
255 |
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256 |
int xin1, xin2, xin3; |
static __inline int |
257 |
int yin1, yin2, yin3; |
get_pmvdata2(const MACROBLOCK * const mbs, |
258 |
int vec1, vec2, vec3; |
const int mb_width, |
259 |
|
const int bound, |
260 |
uint32_t index = x + y * x_dim; |
const int x, |
261 |
const VECTOR zeroMV = { 0,0 }; |
const int y, |
262 |
|
const int block, |
263 |
// first row of blocks (special case) |
VECTOR * const pmv, |
264 |
if (y == 0 && (block == 0 || block == 1)) |
int32_t * const psad) |
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{ |
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if ((x == 0) && (block == 0)) // first column, first block |
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{ |
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pmv[0] = pmv[1] = pmv[2] = pmv[3] = zeroMV; |
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psad[0] = 0; |
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psad[1] = psad[2] = psad[3] = MV_MAX_ERROR; |
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return 0; |
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} |
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if (block == 1) // second block; has only a left neighbour |
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{ |
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pmv[0] = pmv[1] = pMBs[index].mvs[0]; |
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pmv[2] = pmv[3] = zeroMV; |
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psad[0] = psad[1] = pMBs[index].sad8[0]; |
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psad[2] = psad[3] = MV_MAX_ERROR; |
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return 0; |
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} |
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else /* block==0, but x!=0, so again, there is a left neighbour*/ |
|
265 |
{ |
{ |
266 |
pmv[0] = pmv[1] = pMBs[index-1].mvs[1]; |
int lx, ly, lz; /* left */ |
267 |
pmv[2] = pmv[3] = zeroMV; |
int tx, ty, tz; /* top */ |
268 |
psad[0] = psad[1] = pMBs[index-1].sad8[1]; |
int rx, ry, rz; /* top-right */ |
269 |
psad[2] = psad[3] = MV_MAX_ERROR; |
int lpos, tpos, rpos; |
270 |
return 0; |
int num_cand = 0, last_cand = 1; |
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} |
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} |
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/* |
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* MODE_INTER, vm18 page 48 |
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* MODE_INTER4V vm18 page 51 |
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* |
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* (x,y-1) (x+1,y-1) |
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* [ | ] [ | ] |
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* [ 2 | 3 ] [ 2 | ] |
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* |
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* (x-1,y) (x,y) (x+1,y) |
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* [ | 1 ] [ 0 | 1 ] [ 0 | ] |
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* [ | 3 ] [ 2 | 3 ] [ | ] |
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*/ |
|
271 |
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272 |
switch (block) |
switch (block) { |
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{ |
|
273 |
case 0: |
case 0: |
274 |
xin1 = x - 1; yin1 = y; vec1 = 1; /* left */ |
lx = x - 1; ly = y; lz = 1; |
275 |
xin2 = x; yin2 = y - 1; vec2 = 2; /* top */ |
tx = x; ty = y - 1; tz = 2; |
276 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; /* top right */ |
rx = x + 1; ry = y - 1; rz = 2; |
277 |
break; |
break; |
278 |
case 1: |
case 1: |
279 |
xin1 = x; yin1 = y; vec1 = 0; |
lx = x; ly = y; lz = 0; |
280 |
xin2 = x; yin2 = y - 1; vec2 = 3; |
tx = x; ty = y - 1; tz = 3; |
281 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; |
rx = x + 1; ry = y - 1; rz = 2; |
282 |
break; |
break; |
283 |
case 2: |
case 2: |
284 |
xin1 = x - 1; yin1 = y; vec1 = 3; |
lx = x - 1; ly = y; lz = 3; |
285 |
xin2 = x; yin2 = y; vec2 = 0; |
tx = x; ty = y; tz = 0; |
286 |
xin3 = x; yin3 = y; vec3 = 1; |
rx = x; ry = y; rz = 1; |
287 |
break; |
break; |
288 |
default: |
default: |
289 |
xin1 = x; yin1 = y; vec1 = 2; |
lx = x; ly = y; lz = 2; |
290 |
xin2 = x; yin2 = y; vec2 = 0; |
tx = x; ty = y; tz = 0; |
291 |
xin3 = x; yin3 = y; vec3 = 1; |
rx = x; ry = y; rz = 1; |
292 |
} |
} |
293 |
|
|
294 |
|
lpos = lx + ly * mb_width; |
295 |
if (xin1 < 0 || xin1 >= (int32_t)x_dim) |
rpos = rx + ry * mb_width; |
296 |
{ |
tpos = tx + ty * mb_width; |
297 |
|
|
298 |
|
if (lpos >= bound && lx >= 0) { |
299 |
|
num_cand++; |
300 |
|
last_cand = 1; |
301 |
|
pmv[1] = mbs[lpos].mvs[lz]; |
302 |
|
psad[1] = mbs[lpos].sad8[lz]; |
303 |
|
} else { |
304 |
pmv[1] = zeroMV; |
pmv[1] = zeroMV; |
305 |
psad[1] = MV_MAX_ERROR; |
psad[1] = MV_MAX_ERROR; |
306 |
} |
} |
|
else |
|
|
{ |
|
|
pmv[1] = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
|
|
psad[1] = pMBs[xin1 + yin1 * x_dim].sad8[vec1]; |
|
|
} |
|
307 |
|
|
308 |
if (xin2 < 0 || xin2 >= (int32_t)x_dim) |
if (tpos >= bound) { |
309 |
{ |
num_cand++; |
310 |
|
last_cand = 2; |
311 |
|
pmv[2]= mbs[tpos].mvs[tz]; |
312 |
|
psad[2] = mbs[tpos].sad8[tz]; |
313 |
|
} else { |
314 |
pmv[2] = zeroMV; |
pmv[2] = zeroMV; |
315 |
psad[2] = MV_MAX_ERROR; |
psad[2] = MV_MAX_ERROR; |
316 |
} |
} |
|
else |
|
|
{ |
|
|
pmv[2] = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
|
|
psad[2] = pMBs[xin2 + yin2 * x_dim].sad8[vec2]; |
|
|
} |
|
317 |
|
|
318 |
if (xin3 < 0 || xin3 >= (int32_t)x_dim) |
if (rpos >= bound && rx < mb_width) { |
319 |
{ |
num_cand++; |
320 |
|
last_cand = 3; |
321 |
|
pmv[3] = mbs[rpos].mvs[rz]; |
322 |
|
psad[3] = mbs[rpos].sad8[rz]; |
323 |
|
} else { |
324 |
pmv[3] = zeroMV; |
pmv[3] = zeroMV; |
325 |
psad[3] = MV_MAX_ERROR; |
psad[3] = MV_MAX_ERROR; |
326 |
} |
} |
327 |
else |
|
328 |
{ |
/* original pmvdata() compatibility hack */ |
329 |
pmv[3] = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
if (x == 0 && y == 0 && block == 0) { |
330 |
psad[3] = pMBs[xin2 + yin2 * x_dim].sad8[vec3]; |
pmv[0] = pmv[1] = pmv[2] = pmv[3] = zeroMV; |
331 |
|
psad[0] = 0; |
332 |
|
psad[1] = psad[2] = psad[3] = MV_MAX_ERROR; |
333 |
|
return 0; |
334 |
} |
} |
335 |
|
|
336 |
if ( (MVequal(pmv[1],pmv[2])) && (MVequal(pmv[1],pmv[3])) ) |
/* if only one valid candidate preictor, the invalid candiates are set to the canidate */ |
337 |
{ |
if (num_cand == 1) { |
338 |
|
pmv[0] = pmv[last_cand]; |
339 |
|
psad[0] = psad[last_cand]; |
340 |
|
// return MVequal(pmv[0], zeroMV); /* no point calculating median mv and minimum sad */ |
341 |
|
|
342 |
|
/* original pmvdata() compatibility hack */ |
343 |
|
return y==0 && block <= 1 ? 0 : MVequal(pmv[0], zeroMV); |
344 |
|
} |
345 |
|
|
346 |
|
if ((MVequal(pmv[1], pmv[2])) && (MVequal(pmv[1], pmv[3]))) { |
347 |
pmv[0]=pmv[1]; |
pmv[0]=pmv[1]; |
348 |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
349 |
return 1; |
return 1; |
350 |
} |
} |
351 |
|
|
352 |
/* median,minimum */ |
/* set median, minimum */ |
353 |
|
|
354 |
|
pmv[0].x = |
355 |
|
MIN(MAX(pmv[1].x, pmv[2].x), |
356 |
|
MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
357 |
|
pmv[0].y = |
358 |
|
MIN(MAX(pmv[1].y, pmv[2].y), |
359 |
|
MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
360 |
|
|
|
pmv[0].x = MIN(MAX(pmv[1].x, pmv[2].x), MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
|
|
pmv[0].y = MIN(MAX(pmv[1].y, pmv[2].y), MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
|
361 |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
362 |
|
|
363 |
return 0; |
return 0; |
364 |
} |
} |
365 |
|
|
|
|
|
|
|
|
366 |
#endif /* _MBPREDICTION_H_ */ |
#endif /* _MBPREDICTION_H_ */ |