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| 1 : | edgomez | 1054 | /***************************************************************************** |
| 2 : | edgomez | 195 | * |
| 3 : | edgomez | 1054 | * XVID MPEG-4 VIDEO CODEC |
| 4 : | * - Sum Of Absolute Difference related code - | ||
| 5 : | edgomez | 195 | * |
| 6 : | edgomez | 1054 | * Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
| 7 : | edgomez | 195 | * |
| 8 : | edgomez | 1054 | * This program is free software ; you can redistribute it and/or modify |
| 9 : | * it under the terms of the GNU General Public License as published by | ||
| 10 : | * the Free Software Foundation ; either version 2 of the License, or | ||
| 11 : | * (at your option) any later version. | ||
| 12 : | edgomez | 195 | * |
| 13 : | edgomez | 1054 | * This program is distributed in the hope that it will be useful, |
| 14 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
| 15 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | * GNU General Public License for more details. | ||
| 17 : | edgomez | 195 | * |
| 18 : | edgomez | 1054 | * You should have received a copy of the GNU General Public License |
| 19 : | * along with this program ; if not, write to the Free Software | ||
| 20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | edgomez | 195 | * |
| 22 : | edgomez | 1205 | * $Id: sad.c,v 1.13.2.8 2003-11-13 23:11:24 edgomez Exp $ |
| 23 : | edgomez | 195 | * |
| 24 : | edgomez | 1054 | ****************************************************************************/ |
| 25 : | edgomez | 195 | |
| 26 : | #include "../portab.h" | ||
| 27 : | edgomez | 851 | #include "../global.h" |
| 28 : | edgomez | 195 | #include "sad.h" |
| 29 : | |||
| 30 : | edgomez | 982 | #include <stdlib.h> |
| 31 : | |||
| 32 : | edgomez | 195 | sad16FuncPtr sad16; |
| 33 : | sad8FuncPtr sad8; | ||
| 34 : | sad16biFuncPtr sad16bi; | ||
| 35 : | edgomez | 1053 | sad8biFuncPtr sad8bi; /* not really sad16, but no difference in prototype */ |
| 36 : | edgomez | 195 | dev16FuncPtr dev16; |
| 37 : | edgomez | 851 | sad16vFuncPtr sad16v; |
| 38 : | edgomez | 1205 | sse8Func_16bitPtr sse8_16bit; |
| 39 : | edgomez | 195 | |
| 40 : | sadInitFuncPtr sadInit; | ||
| 41 : | |||
| 42 : | |||
| 43 : | uint32_t | ||
| 44 : | sad16_c(const uint8_t * const cur, | ||
| 45 : | const uint8_t * const ref, | ||
| 46 : | const uint32_t stride, | ||
| 47 : | const uint32_t best_sad) | ||
| 48 : | { | ||
| 49 : | |||
| 50 : | uint32_t sad = 0; | ||
| 51 : | edgomez | 851 | uint32_t j; |
| 52 : | edgomez | 195 | uint8_t const *ptr_cur = cur; |
| 53 : | uint8_t const *ptr_ref = ref; | ||
| 54 : | |||
| 55 : | for (j = 0; j < 16; j++) { | ||
| 56 : | edgomez | 982 | sad += abs(ptr_cur[0] - ptr_ref[0]); |
| 57 : | sad += abs(ptr_cur[1] - ptr_ref[1]); | ||
| 58 : | sad += abs(ptr_cur[2] - ptr_ref[2]); | ||
| 59 : | sad += abs(ptr_cur[3] - ptr_ref[3]); | ||
| 60 : | sad += abs(ptr_cur[4] - ptr_ref[4]); | ||
| 61 : | sad += abs(ptr_cur[5] - ptr_ref[5]); | ||
| 62 : | sad += abs(ptr_cur[6] - ptr_ref[6]); | ||
| 63 : | sad += abs(ptr_cur[7] - ptr_ref[7]); | ||
| 64 : | sad += abs(ptr_cur[8] - ptr_ref[8]); | ||
| 65 : | sad += abs(ptr_cur[9] - ptr_ref[9]); | ||
| 66 : | sad += abs(ptr_cur[10] - ptr_ref[10]); | ||
| 67 : | sad += abs(ptr_cur[11] - ptr_ref[11]); | ||
| 68 : | sad += abs(ptr_cur[12] - ptr_ref[12]); | ||
| 69 : | sad += abs(ptr_cur[13] - ptr_ref[13]); | ||
| 70 : | sad += abs(ptr_cur[14] - ptr_ref[14]); | ||
| 71 : | sad += abs(ptr_cur[15] - ptr_ref[15]); | ||
| 72 : | edgomez | 195 | |
| 73 : | edgomez | 1161 | if (sad >= best_sad) |
| 74 : | edgomez | 195 | return sad; |
| 75 : | |||
| 76 : | edgomez | 851 | ptr_cur += stride; |
| 77 : | ptr_ref += stride; | ||
| 78 : | edgomez | 195 | |
| 79 : | } | ||
| 80 : | |||
| 81 : | return sad; | ||
| 82 : | |||
| 83 : | } | ||
| 84 : | |||
| 85 : | uint32_t | ||
| 86 : | sad16bi_c(const uint8_t * const cur, | ||
| 87 : | const uint8_t * const ref1, | ||
| 88 : | const uint8_t * const ref2, | ||
| 89 : | const uint32_t stride) | ||
| 90 : | { | ||
| 91 : | |||
| 92 : | uint32_t sad = 0; | ||
| 93 : | uint32_t i, j; | ||
| 94 : | uint8_t const *ptr_cur = cur; | ||
| 95 : | uint8_t const *ptr_ref1 = ref1; | ||
| 96 : | uint8_t const *ptr_ref2 = ref2; | ||
| 97 : | |||
| 98 : | for (j = 0; j < 16; j++) { | ||
| 99 : | |||
| 100 : | for (i = 0; i < 16; i++) { | ||
| 101 : | int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; | ||
| 102 : | edgomez | 982 | sad += abs(ptr_cur[i] - pixel); |
| 103 : | edgomez | 195 | } |
| 104 : | |||
| 105 : | ptr_cur += stride; | ||
| 106 : | ptr_ref1 += stride; | ||
| 107 : | ptr_ref2 += stride; | ||
| 108 : | |||
| 109 : | } | ||
| 110 : | |||
| 111 : | return sad; | ||
| 112 : | |||
| 113 : | } | ||
| 114 : | |||
| 115 : | uint32_t | ||
| 116 : | sad8bi_c(const uint8_t * const cur, | ||
| 117 : | const uint8_t * const ref1, | ||
| 118 : | const uint8_t * const ref2, | ||
| 119 : | const uint32_t stride) | ||
| 120 : | { | ||
| 121 : | |||
| 122 : | uint32_t sad = 0; | ||
| 123 : | chl | 326 | uint32_t i, j; |
| 124 : | edgomez | 195 | uint8_t const *ptr_cur = cur; |
| 125 : | chl | 326 | uint8_t const *ptr_ref1 = ref1; |
| 126 : | uint8_t const *ptr_ref2 = ref2; | ||
| 127 : | |||
| 128 : | for (j = 0; j < 8; j++) { | ||
| 129 : | |||
| 130 : | for (i = 0; i < 8; i++) { | ||
| 131 : | int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; | ||
| 132 : | edgomez | 982 | sad += abs(ptr_cur[i] - pixel); |
| 133 : | chl | 326 | } |
| 134 : | |||
| 135 : | ptr_cur += stride; | ||
| 136 : | ptr_ref1 += stride; | ||
| 137 : | ptr_ref2 += stride; | ||
| 138 : | |||
| 139 : | } | ||
| 140 : | |||
| 141 : | return sad; | ||
| 142 : | |||
| 143 : | } | ||
| 144 : | |||
| 145 : | |||
| 146 : | |||
| 147 : | uint32_t | ||
| 148 : | sad8_c(const uint8_t * const cur, | ||
| 149 : | const uint8_t * const ref, | ||
| 150 : | const uint32_t stride) | ||
| 151 : | { | ||
| 152 : | uint32_t sad = 0; | ||
| 153 : | edgomez | 851 | uint32_t j; |
| 154 : | chl | 326 | uint8_t const *ptr_cur = cur; |
| 155 : | edgomez | 195 | uint8_t const *ptr_ref = ref; |
| 156 : | |||
| 157 : | for (j = 0; j < 8; j++) { | ||
| 158 : | |||
| 159 : | edgomez | 982 | sad += abs(ptr_cur[0] - ptr_ref[0]); |
| 160 : | sad += abs(ptr_cur[1] - ptr_ref[1]); | ||
| 161 : | sad += abs(ptr_cur[2] - ptr_ref[2]); | ||
| 162 : | sad += abs(ptr_cur[3] - ptr_ref[3]); | ||
| 163 : | sad += abs(ptr_cur[4] - ptr_ref[4]); | ||
| 164 : | sad += abs(ptr_cur[5] - ptr_ref[5]); | ||
| 165 : | sad += abs(ptr_cur[6] - ptr_ref[6]); | ||
| 166 : | sad += abs(ptr_cur[7] - ptr_ref[7]); | ||
| 167 : | edgomez | 1161 | |
| 168 : | edgomez | 195 | ptr_cur += stride; |
| 169 : | ptr_ref += stride; | ||
| 170 : | |||
| 171 : | } | ||
| 172 : | |||
| 173 : | return sad; | ||
| 174 : | } | ||
| 175 : | |||
| 176 : | |||
| 177 : | /* average deviation from mean */ | ||
| 178 : | |||
| 179 : | uint32_t | ||
| 180 : | dev16_c(const uint8_t * const cur, | ||
| 181 : | const uint32_t stride) | ||
| 182 : | { | ||
| 183 : | |||
| 184 : | uint32_t mean = 0; | ||
| 185 : | uint32_t dev = 0; | ||
| 186 : | uint32_t i, j; | ||
| 187 : | uint8_t const *ptr_cur = cur; | ||
| 188 : | |||
| 189 : | for (j = 0; j < 16; j++) { | ||
| 190 : | |||
| 191 : | for (i = 0; i < 16; i++) | ||
| 192 : | mean += *(ptr_cur + i); | ||
| 193 : | |||
| 194 : | ptr_cur += stride; | ||
| 195 : | |||
| 196 : | } | ||
| 197 : | |||
| 198 : | mean /= (16 * 16); | ||
| 199 : | ptr_cur = cur; | ||
| 200 : | |||
| 201 : | for (j = 0; j < 16; j++) { | ||
| 202 : | |||
| 203 : | for (i = 0; i < 16; i++) | ||
| 204 : | edgomez | 982 | dev += abs(*(ptr_cur + i) - (int32_t) mean); |
| 205 : | edgomez | 195 | |
| 206 : | ptr_cur += stride; | ||
| 207 : | |||
| 208 : | } | ||
| 209 : | |||
| 210 : | return dev; | ||
| 211 : | } | ||
| 212 : | edgomez | 851 | |
| 213 : | edgomez | 1161 | uint32_t sad16v_c(const uint8_t * const cur, |
| 214 : | const uint8_t * const ref, | ||
| 215 : | const uint32_t stride, | ||
| 216 : | edgomez | 851 | int32_t *sad) |
| 217 : | { | ||
| 218 : | sad[0] = sad8(cur, ref, stride); | ||
| 219 : | sad[1] = sad8(cur + 8, ref + 8, stride); | ||
| 220 : | sad[2] = sad8(cur + 8*stride, ref + 8*stride, stride); | ||
| 221 : | sad[3] = sad8(cur + 8*stride + 8, ref + 8*stride + 8, stride); | ||
| 222 : | edgomez | 1161 | |
| 223 : | edgomez | 851 | return sad[0]+sad[1]+sad[2]+sad[3]; |
| 224 : | } | ||
| 225 : | |||
| 226 : | edgomez | 1161 | uint32_t sad32v_c(const uint8_t * const cur, |
| 227 : | const uint8_t * const ref, | ||
| 228 : | const uint32_t stride, | ||
| 229 : | edgomez | 851 | int32_t *sad) |
| 230 : | { | ||
| 231 : | sad[0] = sad16(cur, ref, stride, 256*4096); | ||
| 232 : | edgomez | 1124 | sad[1] = sad16(cur + 16, ref + 16, stride, 256*4096); |
| 233 : | sad[2] = sad16(cur + 16*stride, ref + 16*stride, stride, 256*4096); | ||
| 234 : | sad[3] = sad16(cur + 16*stride + 16, ref + 16*stride + 16, stride, 256*4096); | ||
| 235 : | edgomez | 1161 | |
| 236 : | edgomez | 851 | return sad[0]+sad[1]+sad[2]+sad[3]; |
| 237 : | } | ||
| 238 : | |||
| 239 : | |||
| 240 : | |||
| 241 : | #define MRSAD16_CORRFACTOR 8 | ||
| 242 : | uint32_t | ||
| 243 : | mrsad16_c(const uint8_t * const cur, | ||
| 244 : | const uint8_t * const ref, | ||
| 245 : | const uint32_t stride, | ||
| 246 : | const uint32_t best_sad) | ||
| 247 : | { | ||
| 248 : | |||
| 249 : | uint32_t sad = 0; | ||
| 250 : | int32_t mean = 0; | ||
| 251 : | uint32_t i, j; | ||
| 252 : | uint8_t const *ptr_cur = cur; | ||
| 253 : | uint8_t const *ptr_ref = ref; | ||
| 254 : | |||
| 255 : | for (j = 0; j < 16; j++) { | ||
| 256 : | for (i = 0; i < 16; i++) { | ||
| 257 : | mean += ((int) *(ptr_cur + i) - (int) *(ptr_ref + i)); | ||
| 258 : | } | ||
| 259 : | ptr_cur += stride; | ||
| 260 : | ptr_ref += stride; | ||
| 261 : | |||
| 262 : | } | ||
| 263 : | mean /= 256; | ||
| 264 : | |||
| 265 : | for (j = 0; j < 16; j++) { | ||
| 266 : | |||
| 267 : | ptr_cur -= stride; | ||
| 268 : | ptr_ref -= stride; | ||
| 269 : | |||
| 270 : | for (i = 0; i < 16; i++) { | ||
| 271 : | |||
| 272 : | edgomez | 982 | sad += abs(*(ptr_cur + i) - *(ptr_ref + i) - mean); |
| 273 : | edgomez | 851 | if (sad >= best_sad) { |
| 274 : | return MRSAD16_CORRFACTOR * sad; | ||
| 275 : | } | ||
| 276 : | } | ||
| 277 : | } | ||
| 278 : | |||
| 279 : | return MRSAD16_CORRFACTOR * sad; | ||
| 280 : | } | ||
| 281 : | edgomez | 1205 | |
| 282 : | uint32_t | ||
| 283 : | sse8_16bit_c(const int16_t * b1, | ||
| 284 : | const int16_t * b2, | ||
| 285 : | const uint32_t stride) | ||
| 286 : | { | ||
| 287 : | int i; | ||
| 288 : | int sse = 0; | ||
| 289 : | |||
| 290 : | for (i=0; i<8; i++) { | ||
| 291 : | sse += (b1[0] - b2[0])*(b1[0] - b2[0]); | ||
| 292 : | sse += (b1[1] - b2[1])*(b1[1] - b2[1]); | ||
| 293 : | sse += (b1[2] - b2[2])*(b1[2] - b2[2]); | ||
| 294 : | sse += (b1[3] - b2[3])*(b1[3] - b2[3]); | ||
| 295 : | sse += (b1[4] - b2[4])*(b1[4] - b2[4]); | ||
| 296 : | sse += (b1[5] - b2[5])*(b1[5] - b2[5]); | ||
| 297 : | sse += (b1[6] - b2[6])*(b1[6] - b2[6]); | ||
| 298 : | sse += (b1[7] - b2[7])*(b1[7] - b2[7]); | ||
| 299 : | |||
| 300 : | b1 = (const int16_t*)((int8_t*)b1+stride); | ||
| 301 : | b2 = (const int16_t*)((int8_t*)b2+stride); | ||
| 302 : | } | ||
| 303 : | |||
| 304 : | return(sse); | ||
| 305 : | } |
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