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* |
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*************************************************************************/ |
*************************************************************************/ |
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/****************************************************************************** |
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* * |
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* Revision history: * |
36 |
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* * |
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* 29.06.2002 get_pmvdata() bounding * |
38 |
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* * |
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******************************************************************************/ |
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#ifndef _MBPREDICTION_H_ |
#ifndef _MBPREDICTION_H_ |
43 |
#define _MBPREDICTION_H_ |
#define _MBPREDICTION_H_ |
44 |
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54 |
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55 |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
56 |
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57 |
void MBPrediction( |
void MBPrediction(FRAMEINFO * frame, /* <-- The parameter for ACDC and MV prediction */ |
58 |
FRAMEINFO *frame, /* <-- The parameter for ACDC and MV prediction */ |
|
59 |
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 */ |
60 |
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61 |
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 */ |
62 |
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|
63 |
uint32_t x_dim, /* <-- Number of macroblocks in a row */ |
uint32_t x_dim, /* <-- Number of macroblocks in a row */ |
64 |
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65 |
int16_t *qcoeff); /* <-> The quantized DCT coefficients */ |
int16_t *qcoeff); /* <-> The quantized DCT coefficients */ |
66 |
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67 |
void add_acdc(MACROBLOCK *pMB, |
void add_acdc(MACROBLOCK *pMB, |
79 |
int16_t qcoeff[64], |
int16_t qcoeff[64], |
80 |
uint32_t current_quant, |
uint32_t current_quant, |
81 |
int32_t iDcScaler, |
int32_t iDcScaler, |
82 |
int16_t predictors[8]); |
int16_t predictors[8], |
83 |
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const int bound); |
84 |
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85 |
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86 |
/* get_pmvdata returns the median predictor and nothing else */ |
/* get_pmvdata returns the median predictor and nothing else */ |
87 |
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88 |
static __inline VECTOR get_pmv(const MACROBLOCK * const pMBs, |
static __inline VECTOR |
89 |
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get_pmv(const MACROBLOCK * const pMBs, |
90 |
const uint32_t x, |
const uint32_t x, |
91 |
const uint32_t y, |
const uint32_t y, |
92 |
const uint32_t x_dim, |
const uint32_t x_dim, |
103 |
uint32_t index = x + y * x_dim; |
uint32_t index = x + y * x_dim; |
104 |
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|
105 |
/* first row (special case) */ |
/* first row (special case) */ |
106 |
if (y == 0 && (block == 0 || block == 1)) |
if (y == 0 && (block == 0 || block == 1)) { |
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{ |
|
107 |
if ((x == 0) && (block == 0)) // first column, first block |
if ((x == 0) && (block == 0)) // first column, first block |
108 |
{ |
{ |
109 |
return zeroMV; |
return zeroMV; |
111 |
if (block == 1) // second block; has only a left neighbour |
if (block == 1) // second block; has only a left neighbour |
112 |
{ |
{ |
113 |
return pMBs[index].mvs[0]; |
return pMBs[index].mvs[0]; |
114 |
} |
} else { /* block==0, but x!=0, so again, there is a left neighbour */ |
115 |
else /* block==0, but x!=0, so again, there is a left neighbour*/ |
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{ |
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116 |
return pMBs[index-1].mvs[1]; |
return pMBs[index-1].mvs[1]; |
117 |
} |
} |
118 |
} |
} |
130 |
* [ | 3 ] [ 2 | 3 ] [ | ] |
* [ | 3 ] [ 2 | 3 ] [ | ] |
131 |
*/ |
*/ |
132 |
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133 |
switch (block) |
switch (block) { |
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{ |
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134 |
case 0: |
case 0: |
135 |
xin1 = x - 1; yin1 = y; vec1 = 1; /* left */ |
xin1 = x - 1; |
136 |
xin2 = x; yin2 = y - 1; vec2 = 2; /* top */ |
yin1 = y; |
137 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; /* top right */ |
vec1 = 1; /* left */ |
138 |
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xin2 = x; |
139 |
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yin2 = y - 1; |
140 |
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vec2 = 2; /* top */ |
141 |
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xin3 = x + 1; |
142 |
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yin3 = y - 1; |
143 |
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vec3 = 2; /* top right */ |
144 |
break; |
break; |
145 |
case 1: |
case 1: |
146 |
xin1 = x; yin1 = y; vec1 = 0; |
xin1 = x; |
147 |
xin2 = x; yin2 = y - 1; vec2 = 3; |
yin1 = y; |
148 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; |
vec1 = 0; |
149 |
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xin2 = x; |
150 |
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yin2 = y - 1; |
151 |
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vec2 = 3; |
152 |
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xin3 = x + 1; |
153 |
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yin3 = y - 1; |
154 |
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vec3 = 2; |
155 |
break; |
break; |
156 |
case 2: |
case 2: |
157 |
xin1 = x - 1; yin1 = y; vec1 = 3; |
xin1 = x - 1; |
158 |
xin2 = x; yin2 = y; vec2 = 0; |
yin1 = y; |
159 |
xin3 = x; yin3 = y; vec3 = 1; |
vec1 = 3; |
160 |
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xin2 = x; |
161 |
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yin2 = y; |
162 |
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vec2 = 0; |
163 |
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xin3 = x; |
164 |
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yin3 = y; |
165 |
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vec3 = 1; |
166 |
break; |
break; |
167 |
default: |
default: |
168 |
xin1 = x; yin1 = y; vec1 = 2; |
xin1 = x; |
169 |
xin2 = x; yin2 = y; vec2 = 0; |
yin1 = y; |
170 |
xin3 = x; yin3 = y; vec3 = 1; |
vec1 = 2; |
171 |
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xin2 = x; |
172 |
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yin2 = y; |
173 |
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vec2 = 0; |
174 |
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xin3 = x; |
175 |
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yin3 = y; |
176 |
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vec3 = 1; |
177 |
} |
} |
178 |
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179 |
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180 |
if (xin1 < 0 || /* yin1 < 0 || */ xin1 >= (int32_t)x_dim) |
if (xin1 < 0 || /* yin1 < 0 || */ xin1 >= (int32_t) x_dim) { |
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{ |
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181 |
lneigh = zeroMV; |
lneigh = zeroMV; |
182 |
} |
} else { |
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else |
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{ |
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183 |
lneigh = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
lneigh = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
184 |
} |
} |
185 |
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186 |
if (xin2 < 0 || /* yin2 < 0 || */ xin2 >= (int32_t)x_dim) |
if (xin2 < 0 || /* yin2 < 0 || */ xin2 >= (int32_t) x_dim) { |
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{ |
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187 |
tneigh = zeroMV; |
tneigh = zeroMV; |
188 |
} |
} else { |
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else |
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{ |
|
189 |
tneigh = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
tneigh = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
190 |
} |
} |
191 |
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192 |
if (xin3 < 0 || /* yin3 < 0 || */ xin3 >= (int32_t)x_dim) |
if (xin3 < 0 || /* yin3 < 0 || */ xin3 >= (int32_t) x_dim) { |
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{ |
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193 |
trneigh = zeroMV; |
trneigh = zeroMV; |
194 |
} |
} else { |
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else |
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{ |
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195 |
trneigh = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
trneigh = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
196 |
} |
} |
197 |
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198 |
/* median,minimum */ |
/* median,minimum */ |
199 |
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200 |
median.x = MIN(MAX(lneigh.x, tneigh.x), MIN(MAX(tneigh.x, trneigh.x), MAX(lneigh.x, trneigh.x))); |
median.x = |
201 |
median.y = MIN(MAX(lneigh.y, tneigh.y), MIN(MAX(tneigh.y, trneigh.y), MAX(lneigh.y, trneigh.y))); |
MIN(MAX(lneigh.x, tneigh.x), |
202 |
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MIN(MAX(tneigh.x, trneigh.x), MAX(lneigh.x, trneigh.x))); |
203 |
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median.y = |
204 |
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MIN(MAX(lneigh.y, tneigh.y), |
205 |
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MIN(MAX(tneigh.y, trneigh.y), MAX(lneigh.y, trneigh.y))); |
206 |
return median; |
return median; |
207 |
} |
} |
208 |
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210 |
/* This is somehow a copy of get_pmv, but returning all MVs and Minimum SAD |
/* This is somehow a copy of get_pmv, but returning all MVs and Minimum SAD |
211 |
instead of only Median MV */ |
instead of only Median MV */ |
212 |
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213 |
static __inline int get_pmvdata(const MACROBLOCK * const pMBs, |
static __inline int |
214 |
const uint32_t x, const uint32_t y, |
get_pmvdata(const MACROBLOCK * const pMBs, |
215 |
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const uint32_t x, |
216 |
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const uint32_t y, |
217 |
const uint32_t x_dim, |
const uint32_t x_dim, |
218 |
const uint32_t block, |
const uint32_t block, |
219 |
VECTOR * const pmv, |
VECTOR * const pmv, |
241 |
const VECTOR zeroMV = { 0,0 }; |
const VECTOR zeroMV = { 0,0 }; |
242 |
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|
243 |
// first row of blocks (special case) |
// first row of blocks (special case) |
244 |
if (y == 0 && (block == 0 || block == 1)) |
if (y == 0 && (block == 0 || block == 1)) { |
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{ |
|
245 |
if ((x == 0) && (block == 0)) // first column, first block |
if ((x == 0) && (block == 0)) // first column, first block |
246 |
{ |
{ |
247 |
pmv[0] = pmv[1] = pmv[2] = pmv[3] = zeroMV; |
pmv[0] = pmv[1] = pmv[2] = pmv[3] = zeroMV; |
256 |
psad[0] = psad[1] = pMBs[index].sad8[0]; |
psad[0] = psad[1] = pMBs[index].sad8[0]; |
257 |
psad[2] = psad[3] = MV_MAX_ERROR; |
psad[2] = psad[3] = MV_MAX_ERROR; |
258 |
return 0; |
return 0; |
259 |
} |
} else { /* block==0, but x!=0, so again, there is a left neighbour */ |
260 |
else /* block==0, but x!=0, so again, there is a left neighbour*/ |
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{ |
|
261 |
pmv[0] = pmv[1] = pMBs[index-1].mvs[1]; |
pmv[0] = pmv[1] = pMBs[index-1].mvs[1]; |
262 |
pmv[2] = pmv[3] = zeroMV; |
pmv[2] = pmv[3] = zeroMV; |
263 |
psad[0] = psad[1] = pMBs[index-1].sad8[1]; |
psad[0] = psad[1] = pMBs[index-1].sad8[1]; |
279 |
* [ | 3 ] [ 2 | 3 ] [ | ] |
* [ | 3 ] [ 2 | 3 ] [ | ] |
280 |
*/ |
*/ |
281 |
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282 |
switch (block) |
switch (block) { |
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{ |
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283 |
case 0: |
case 0: |
284 |
xin1 = x - 1; yin1 = y; vec1 = 1; /* left */ |
xin1 = x - 1; |
285 |
xin2 = x; yin2 = y - 1; vec2 = 2; /* top */ |
yin1 = y; |
286 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; /* top right */ |
vec1 = 1; /* left */ |
287 |
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xin2 = x; |
288 |
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yin2 = y - 1; |
289 |
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vec2 = 2; /* top */ |
290 |
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xin3 = x + 1; |
291 |
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yin3 = y - 1; |
292 |
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vec3 = 2; /* top right */ |
293 |
break; |
break; |
294 |
case 1: |
case 1: |
295 |
xin1 = x; yin1 = y; vec1 = 0; |
xin1 = x; |
296 |
xin2 = x; yin2 = y - 1; vec2 = 3; |
yin1 = y; |
297 |
xin3 = x + 1; yin3 = y - 1; vec3 = 2; |
vec1 = 0; |
298 |
|
xin2 = x; |
299 |
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yin2 = y - 1; |
300 |
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vec2 = 3; |
301 |
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xin3 = x + 1; |
302 |
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yin3 = y - 1; |
303 |
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vec3 = 2; |
304 |
break; |
break; |
305 |
case 2: |
case 2: |
306 |
xin1 = x - 1; yin1 = y; vec1 = 3; |
xin1 = x - 1; |
307 |
xin2 = x; yin2 = y; vec2 = 0; |
yin1 = y; |
308 |
xin3 = x; yin3 = y; vec3 = 1; |
vec1 = 3; |
309 |
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xin2 = x; |
310 |
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yin2 = y; |
311 |
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vec2 = 0; |
312 |
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xin3 = x; |
313 |
|
yin3 = y; |
314 |
|
vec3 = 1; |
315 |
break; |
break; |
316 |
default: |
default: |
317 |
xin1 = x; yin1 = y; vec1 = 2; |
xin1 = x; |
318 |
xin2 = x; yin2 = y; vec2 = 0; |
yin1 = y; |
319 |
xin3 = x; yin3 = y; vec3 = 1; |
vec1 = 2; |
320 |
|
xin2 = x; |
321 |
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yin2 = y; |
322 |
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vec2 = 0; |
323 |
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xin3 = x; |
324 |
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yin3 = y; |
325 |
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vec3 = 1; |
326 |
} |
} |
327 |
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328 |
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|
329 |
if (xin1 < 0 || xin1 >= (int32_t)x_dim) |
if (xin1 < 0 || xin1 >= (int32_t) x_dim) { |
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{ |
|
330 |
pmv[1] = zeroMV; |
pmv[1] = zeroMV; |
331 |
psad[1] = MV_MAX_ERROR; |
psad[1] = MV_MAX_ERROR; |
332 |
} |
} else { |
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else |
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{ |
|
333 |
pmv[1] = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
pmv[1] = pMBs[xin1 + yin1 * x_dim].mvs[vec1]; |
334 |
psad[1] = pMBs[xin1 + yin1 * x_dim].sad8[vec1]; |
psad[1] = pMBs[xin1 + yin1 * x_dim].sad8[vec1]; |
335 |
} |
} |
336 |
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|
337 |
if (xin2 < 0 || xin2 >= (int32_t)x_dim) |
if (xin2 < 0 || xin2 >= (int32_t) x_dim) { |
|
{ |
|
338 |
pmv[2] = zeroMV; |
pmv[2] = zeroMV; |
339 |
psad[2] = MV_MAX_ERROR; |
psad[2] = MV_MAX_ERROR; |
340 |
} |
} else { |
|
else |
|
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{ |
|
341 |
pmv[2] = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
pmv[2] = pMBs[xin2 + yin2 * x_dim].mvs[vec2]; |
342 |
psad[2] = pMBs[xin2 + yin2 * x_dim].sad8[vec2]; |
psad[2] = pMBs[xin2 + yin2 * x_dim].sad8[vec2]; |
343 |
} |
} |
344 |
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|
345 |
if (xin3 < 0 || xin3 >= (int32_t)x_dim) |
if (xin3 < 0 || xin3 >= (int32_t) x_dim) { |
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{ |
|
346 |
pmv[3] = zeroMV; |
pmv[3] = zeroMV; |
347 |
psad[3] = MV_MAX_ERROR; |
psad[3] = MV_MAX_ERROR; |
348 |
} |
} else { |
|
else |
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{ |
|
349 |
pmv[3] = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
pmv[3] = pMBs[xin3 + yin3 * x_dim].mvs[vec3]; |
350 |
psad[3] = pMBs[xin2 + yin2 * x_dim].sad8[vec3]; |
psad[3] = pMBs[xin3 + yin3 * x_dim].sad8[vec3]; |
351 |
} |
} |
352 |
|
|
353 |
if ( (MVequal(pmv[1],pmv[2])) && (MVequal(pmv[1],pmv[3])) ) |
if ((MVequal(pmv[1], pmv[2])) && (MVequal(pmv[1], pmv[3]))) { |
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{ |
|
354 |
pmv[0]=pmv[1]; |
pmv[0]=pmv[1]; |
355 |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
356 |
return 1; |
return 1; |
358 |
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|
359 |
/* median,minimum */ |
/* median,minimum */ |
360 |
|
|
361 |
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].x = |
362 |
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))); |
MIN(MAX(pmv[1].x, pmv[2].x), |
363 |
|
MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
364 |
|
pmv[0].y = |
365 |
|
MIN(MAX(pmv[1].y, pmv[2].y), |
366 |
|
MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
367 |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
psad[0]=MIN( MIN(psad[1],psad[2]), psad[3]); |
368 |
|
|
369 |
return 0; |
return 0; |
370 |
} |
} |
371 |
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372 |
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373 |
|
/* |
374 |
|
* MODE_INTER, vm18 page 48 |
375 |
|
* MODE_INTER4V vm18 page 51 |
376 |
|
* |
377 |
|
* (x,y-1) (x+1,y-1) |
378 |
|
* [ | ] [ | ] |
379 |
|
* [ 2 | 3 ] [ 2 | ] |
380 |
|
* |
381 |
|
* (x-1,y) (x,y) (x+1,y) |
382 |
|
* [ | 1 ] [ 0 | 1 ] [ 0 | ] |
383 |
|
* [ | 3 ] [ 2 | 3 ] [ | ] |
384 |
|
*/ |
385 |
|
|
386 |
|
static __inline VECTOR |
387 |
|
get_pmv2(const MACROBLOCK * const mbs, |
388 |
|
const int mb_width, |
389 |
|
const int bound, |
390 |
|
const int x, |
391 |
|
const int y, |
392 |
|
const int block) |
393 |
|
{ |
394 |
|
static const VECTOR zeroMV = { 0, 0 }; |
395 |
|
|
396 |
|
int lx, ly, lz; /* left */ |
397 |
|
int tx, ty, tz; /* top */ |
398 |
|
int rx, ry, rz; /* top-right */ |
399 |
|
int lpos, tpos, rpos; |
400 |
|
int num_cand, last_cand; |
401 |
|
|
402 |
|
VECTOR pmv[4]; /* left neighbour, top neighbour, top-right neighbour */ |
403 |
|
|
404 |
|
switch (block) { |
405 |
|
case 0: |
406 |
|
lx = x - 1; ly = y; lz = 1; |
407 |
|
tx = x; ty = y - 1; tz = 2; |
408 |
|
rx = x + 1; ry = y - 1; rz = 2; |
409 |
|
break; |
410 |
|
case 1: |
411 |
|
lx = x; ly = y; lz = 0; |
412 |
|
tx = x; ty = y - 1; tz = 3; |
413 |
|
rx = x + 1; ry = y - 1; rz = 2; |
414 |
|
break; |
415 |
|
case 2: |
416 |
|
lx = x - 1; ly = y; lz = 3; |
417 |
|
tx = x; ty = y; tz = 0; |
418 |
|
rx = x; ry = y; rz = 1; |
419 |
|
break; |
420 |
|
default: |
421 |
|
lx = x; ly = y; lz = 2; |
422 |
|
tx = x; ty = y; tz = 0; |
423 |
|
rx = x; ry = y; rz = 1; |
424 |
|
} |
425 |
|
|
426 |
|
lpos = lx + ly * mb_width; |
427 |
|
rpos = rx + ry * mb_width; |
428 |
|
tpos = tx + ty * mb_width; |
429 |
|
num_cand = 0; |
430 |
|
|
431 |
|
if (lpos >= bound && lx >= 0) { |
432 |
|
num_cand++; |
433 |
|
last_cand = 1; |
434 |
|
pmv[1] = mbs[lpos].mvs[lz]; |
435 |
|
} else { |
436 |
|
pmv[1] = zeroMV; |
437 |
|
} |
438 |
|
|
439 |
|
if (tpos >= bound) { |
440 |
|
num_cand++; |
441 |
|
last_cand = 2; |
442 |
|
pmv[2] = mbs[tpos].mvs[tz]; |
443 |
|
} else { |
444 |
|
pmv[2] = zeroMV; |
445 |
|
} |
446 |
|
|
447 |
|
if (rpos >= bound && rx < mb_width) { |
448 |
|
num_cand++; |
449 |
|
last_cand = 3; |
450 |
|
pmv[3] = mbs[rpos].mvs[rz]; |
451 |
|
} else { |
452 |
|
pmv[3] = zeroMV; |
453 |
|
} |
454 |
|
|
455 |
|
/* if only one valid candidate preictor, the invalid candiates are set to the canidate */ |
456 |
|
if (num_cand != 1) { |
457 |
|
/* set median */ |
458 |
|
|
459 |
|
pmv[0].x = |
460 |
|
MIN(MAX(pmv[1].x, pmv[2].x), |
461 |
|
MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
462 |
|
pmv[0].y = |
463 |
|
MIN(MAX(pmv[1].y, pmv[2].y), |
464 |
|
MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
465 |
|
return pmv[0]; |
466 |
|
} |
467 |
|
|
468 |
|
return pmv[last_cand]; /* no point calculating median mv */ |
469 |
|
} |
470 |
|
|
471 |
|
|
472 |
|
|
473 |
|
/* |
474 |
|
* pmv are filled with: |
475 |
|
* [0]: Median (or whatever is correct in a special case) |
476 |
|
* [1]: left neighbour |
477 |
|
* [2]: top neighbour |
478 |
|
* [3]: topright neighbour |
479 |
|
* psad are filled with: |
480 |
|
* [0]: minimum of [1] to [3] |
481 |
|
* [1]: left neighbour's SAD (NB:[1] to [3] are actually not needed) |
482 |
|
* [2]: top neighbour's SAD |
483 |
|
* [3]: topright neighbour's SAD |
484 |
|
*/ |
485 |
|
static __inline int |
486 |
|
get_pmvdata2(const MACROBLOCK * const mbs, |
487 |
|
const int mb_width, |
488 |
|
const int bound, |
489 |
|
const int x, |
490 |
|
const int y, |
491 |
|
const int block, |
492 |
|
VECTOR * const pmv, |
493 |
|
int32_t * const psad) |
494 |
|
{ |
495 |
|
static const VECTOR zeroMV = { 0, 0 }; |
496 |
|
|
497 |
|
int lx, ly, lz; /* left */ |
498 |
|
int tx, ty, tz; /* top */ |
499 |
|
int rx, ry, rz; /* top-right */ |
500 |
|
int lpos, tpos, rpos; |
501 |
|
int num_cand, last_cand; |
502 |
|
|
503 |
|
switch (block) { |
504 |
|
case 0: |
505 |
|
lx = x - 1; ly = y; lz = 1; |
506 |
|
tx = x; ty = y - 1; tz = 2; |
507 |
|
rx = x + 1; ry = y - 1; rz = 2; |
508 |
|
break; |
509 |
|
case 1: |
510 |
|
lx = x; ly = y; lz = 0; |
511 |
|
tx = x; ty = y - 1; tz = 3; |
512 |
|
rx = x + 1; ry = y - 1; rz = 2; |
513 |
|
break; |
514 |
|
case 2: |
515 |
|
lx = x - 1; ly = y; lz = 3; |
516 |
|
tx = x; ty = y; tz = 0; |
517 |
|
rx = x; ry = y; rz = 1; |
518 |
|
break; |
519 |
|
default: |
520 |
|
lx = x; ly = y; lz = 2; |
521 |
|
tx = x; ty = y; tz = 0; |
522 |
|
rx = x; ry = y; rz = 1; |
523 |
|
} |
524 |
|
|
525 |
|
lpos = lx + ly * mb_width; |
526 |
|
rpos = rx + ry * mb_width; |
527 |
|
tpos = tx + ty * mb_width; |
528 |
|
num_cand = 0; |
529 |
|
|
530 |
|
if (lpos >= bound && lx >= 0) { |
531 |
|
num_cand++; |
532 |
|
last_cand = 1; |
533 |
|
pmv[1] = mbs[lpos].mvs[lz]; |
534 |
|
psad[1] = mbs[lpos].sad8[lz]; |
535 |
|
} else { |
536 |
|
pmv[1] = zeroMV; |
537 |
|
psad[1] = MV_MAX_ERROR; |
538 |
|
} |
539 |
|
|
540 |
|
if (tpos >= bound) { |
541 |
|
num_cand++; |
542 |
|
last_cand = 2; |
543 |
|
pmv[2]= mbs[tpos].mvs[tz]; |
544 |
|
psad[2] = mbs[tpos].sad8[tz]; |
545 |
|
} else { |
546 |
|
pmv[2] = zeroMV; |
547 |
|
psad[2] = MV_MAX_ERROR; |
548 |
|
} |
549 |
|
|
550 |
|
if (rpos >= bound && rx < mb_width) { |
551 |
|
num_cand++; |
552 |
|
last_cand = 3; |
553 |
|
pmv[3] = mbs[rpos].mvs[rz]; |
554 |
|
psad[3] = mbs[rpos].sad8[rz]; |
555 |
|
} else { |
556 |
|
pmv[3] = zeroMV; |
557 |
|
psad[3] = MV_MAX_ERROR; |
558 |
|
} |
559 |
|
|
560 |
|
/* original pmvdata() compatibility hack */ |
561 |
|
if (x == 0 && y == 0 && block == 0) |
562 |
|
{ |
563 |
|
pmv[0] = pmv[1] = pmv[2] = pmv[3] = zeroMV; |
564 |
|
psad[0] = 0; |
565 |
|
psad[1] = psad[2] = psad[3] = MV_MAX_ERROR; |
566 |
|
return 0; |
567 |
|
} |
568 |
|
|
569 |
|
/* if only one valid candidate preictor, the invalid candiates are set to the canidate */ |
570 |
|
if (num_cand == 1) { |
571 |
|
pmv[0] = pmv[last_cand]; |
572 |
|
psad[0] = psad[last_cand]; |
573 |
|
// return MVequal(pmv[0], zeroMV); /* no point calculating median mv and minimum sad */ |
574 |
|
|
575 |
|
/* original pmvdata() compatibility hack */ |
576 |
|
return y==0 && block <= 1 ? 0 : MVequal(pmv[0], zeroMV); |
577 |
|
} |
578 |
|
|
579 |
|
if ((MVequal(pmv[1], pmv[2])) && (MVequal(pmv[1], pmv[3]))) { |
580 |
|
pmv[0] = pmv[1]; |
581 |
|
psad[0] = MIN(MIN(psad[1], psad[2]), psad[3]); |
582 |
|
return 1; |
583 |
|
/* compatibility patch */ |
584 |
|
//return y==0 && block <= 1 ? 0 : 1; |
585 |
|
} |
586 |
|
|
587 |
|
/* set median, minimum */ |
588 |
|
|
589 |
|
pmv[0].x = |
590 |
|
MIN(MAX(pmv[1].x, pmv[2].x), |
591 |
|
MIN(MAX(pmv[2].x, pmv[3].x), MAX(pmv[1].x, pmv[3].x))); |
592 |
|
pmv[0].y = |
593 |
|
MIN(MAX(pmv[1].y, pmv[2].y), |
594 |
|
MIN(MAX(pmv[2].y, pmv[3].y), MAX(pmv[1].y, pmv[3].y))); |
595 |
|
|
596 |
|
psad[0] = MIN(MIN(psad[1], psad[2]), psad[3]); |
597 |
|
|
598 |
|
return 0; |
599 |
|
} |
600 |
|
|
601 |
|
|
602 |
#endif /* _MBPREDICTION_H_ */ |
#endif /* _MBPREDICTION_H_ */ |