1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 19 #include <string.h> 20 21 #include "avclib_common.h" 22 23 #define MAX_QP 51 24 #define MB_BLOCK_SIZE 16 25 26 // NOTE: these 3 tables are for funtion GetStrength() only 27 const static int ININT_STRENGTH[4] = {0x04040404, 0x03030303, 0x03030303, 0x03030303}; 28 29 30 // NOTE: these 3 tables are for funtion EdgeLoop() only 31 // NOTE: to change the tables below for instance when the QP doubling is changed from 6 to 8 values 32 33 const static int ALPHA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 17, 20, 22, 25, 28, 32, 36, 40, 45, 50, 56, 63, 71, 80, 90, 101, 113, 127, 144, 162, 182, 203, 226, 255, 255} ; 34 const static int BETA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18} ; 35 const static int CLIP_TAB[52][5] = 36 { 37 { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, 38 { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, 39 { 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 1, 1, 1, 1}, 40 { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 2, 3, 3}, 41 { 0, 1, 2, 3, 3}, { 0, 2, 2, 3, 3}, { 0, 2, 2, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 3, 3, 5, 5}, { 0, 3, 4, 6, 6}, { 0, 3, 4, 6, 6}, 42 { 0, 4, 5, 7, 7}, { 0, 4, 5, 8, 8}, { 0, 4, 6, 9, 9}, { 0, 5, 7, 10, 10}, { 0, 6, 8, 11, 11}, { 0, 6, 8, 13, 13}, { 0, 7, 10, 14, 14}, { 0, 8, 11, 16, 16}, 43 { 0, 9, 12, 18, 18}, { 0, 10, 13, 20, 20}, { 0, 11, 15, 23, 23}, { 0, 13, 17, 25, 25} 44 }; 45 46 // NOTE: this table is only QP clipping, index = QP + video->FilterOffsetA/B, clipped to [0, 51] 47 // video->FilterOffsetA/B is in {-12, 12] 48 const static int QP_CLIP_TAB[76] = 49 { 50 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // [-12, 0] 51 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 52 13, 14, 15, 16, 17, 18, 19, 20, 21, 53 22, 23, 24, 25, 26, 27, 28, 29, 30, 54 31, 32, 33, 34, 35, 36, 37, 38, 39, 55 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // [1, 51] 56 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51 // [52,63] 57 }; 58 59 static void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV); 60 //static void GetStrength(AVCCommonObj *video, uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir, int edge); 61 static void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir); 62 static void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ); 63 static void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ); 64 static void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); 65 static void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); 66 static void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); 67 static void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch); 68 69 /* 70 ***************************************************************************************** 71 * \brief Filter all macroblocks in order of increasing macroblock address. 72 ***************************************************************************************** 73 */ 74 75 OSCL_EXPORT_REF AVCStatus DeblockPicture(AVCCommonObj *video) 76 { 77 uint i, j; 78 int pitch = video->currPic->pitch, pitch_c, width; 79 uint8 *SrcY, *SrcU, *SrcV; 80 81 SrcY = video->currPic->Sl; // pointers to source 82 SrcU = video->currPic->Scb; 83 SrcV = video->currPic->Scr; 84 pitch_c = pitch >> 1; 85 width = video->currPic->width; 86 87 for (i = 0; i < video->PicHeightInMbs; i++) 88 { 89 for (j = 0; j < video->PicWidthInMbs; j++) 90 { 91 DeblockMb(video, j, i, SrcY, SrcU, SrcV); 92 // update SrcY, SrcU, SrcV 93 SrcY += MB_BLOCK_SIZE; 94 SrcU += (MB_BLOCK_SIZE >> 1); 95 SrcV += (MB_BLOCK_SIZE >> 1); 96 } 97 98 SrcY += ((pitch << 4) - width); 99 SrcU += ((pitch_c << 3) - (width >> 1)); 100 SrcV += ((pitch_c << 3) - (width >> 1)); 101 } 102 103 return AVC_SUCCESS; 104 } 105 106 #ifdef MB_BASED_DEBLOCK 107 /* 108 ***************************************************************************************** 109 * \brief Filter one macroblocks in a fast macroblock memory and copy it to frame 110 ***************************************************************************************** 111 */ 112 void MBInLoopDeblock(AVCCommonObj *video) 113 { 114 AVCPictureData *currPic = video->currPic; 115 #ifdef USE_PRED_BLOCK 116 uint8 *predCb, *predCr, *pred_block; 117 int i, j, dst_width, dst_height, dst_widthc, dst_heightc; 118 #endif 119 int pitch = currPic->pitch; 120 int x_pos = video->mb_x; 121 int y_pos = video->mb_y; 122 uint8 *curL, *curCb, *curCr; 123 int offset; 124 125 offset = (y_pos << 4) * pitch; 126 127 curL = currPic->Sl + offset + (x_pos << 4); 128 129 offset >>= 2; 130 offset += (x_pos << 3); 131 132 curCb = currPic->Scb + offset; 133 curCr = currPic->Scr + offset; 134 135 #ifdef USE_PRED_BLOCK 136 pred_block = video->pred; 137 138 /* 1. copy neighboring pixels from frame to the video->pred_block */ 139 if (y_pos) /* not the 0th row */ 140 { 141 /* copy to the top 4 lines of the macroblock */ 142 curL -= (pitch << 2); /* go back 4 lines */ 143 144 memcpy(pred_block + 4, curL, 16); 145 curL += pitch; 146 memcpy(pred_block + 24, curL, 16); 147 curL += pitch; 148 memcpy(pred_block + 44, curL, 16); 149 curL += pitch; 150 memcpy(pred_block + 64, curL, 16); 151 curL += pitch; 152 153 curCb -= (pitch << 1); /* go back 4 lines chroma */ 154 curCr -= (pitch << 1); 155 156 pred_block += 400; 157 158 memcpy(pred_block + 4, curCb, 8); 159 curCb += (pitch >> 1); 160 memcpy(pred_block + 16, curCb, 8); 161 curCb += (pitch >> 1); 162 memcpy(pred_block + 28, curCb, 8); 163 curCb += (pitch >> 1); 164 memcpy(pred_block + 40, curCb, 8); 165 curCb += (pitch >> 1); 166 167 pred_block += 144; 168 memcpy(pred_block + 4, curCr, 8); 169 curCr += (pitch >> 1); 170 memcpy(pred_block + 16, curCr, 8); 171 curCr += (pitch >> 1); 172 memcpy(pred_block + 28, curCr, 8); 173 curCr += (pitch >> 1); 174 memcpy(pred_block + 40, curCr, 8); 175 curCr += (pitch >> 1); 176 177 pred_block = video->pred; 178 } 179 180 /* 2. perform deblocking. */ 181 DeblockMb(video, x_pos, y_pos, pred_block + 84, pred_block + 452, pred_block + 596); 182 183 /* 3. copy it back to the frame and update pred_block */ 184 predCb = pred_block + 400; 185 predCr = predCb + 144; 186 187 /* find the range of the block inside pred_block to be copied back */ 188 if (y_pos) /* the first row */ 189 { 190 curL -= (pitch << 2); 191 curCb -= (pitch << 1); 192 curCr -= (pitch << 1); 193 194 dst_height = 20; 195 dst_heightc = 12; 196 } 197 else 198 { 199 pred_block += 80; 200 predCb += 48; 201 predCr += 48; 202 dst_height = 16; 203 dst_heightc = 8; 204 } 205 206 if (x_pos) /* find the width */ 207 { 208 curL -= 4; 209 curCb -= 4; 210 curCr -= 4; 211 if (x_pos == (int)(video->PicWidthInMbs - 1)) 212 { 213 dst_width = 20; 214 dst_widthc = 12; 215 } 216 else 217 { 218 dst_width = 16; 219 dst_widthc = 8; 220 } 221 } 222 else 223 { 224 pred_block += 4; 225 predCb += 4; 226 predCr += 4; 227 dst_width = 12; 228 dst_widthc = 4; 229 } 230 231 /* perform copy */ 232 for (j = 0; j < dst_height; j++) 233 { 234 memcpy(curL, pred_block, dst_width); 235 curL += pitch; 236 pred_block += 20; 237 } 238 for (j = 0; j < dst_heightc; j++) 239 { 240 memcpy(curCb, predCb, dst_widthc); 241 memcpy(curCr, predCr, dst_widthc); 242 curCb += (pitch >> 1); 243 curCr += (pitch >> 1); 244 predCb += 12; 245 predCr += 12; 246 } 247 248 if (x_pos != (int)(video->PicWidthInMbs - 1)) /* now copy from the right-most 4 columns to the left-most 4 columns */ 249 { 250 pred_block = video->pred; 251 for (i = 0; i < 20; i += 4) 252 { 253 *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); 254 pred_block += 20; 255 *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); 256 pred_block += 20; 257 *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); 258 pred_block += 20; 259 *((uint32*)pred_block) = *((uint32*)(pred_block + 16)); 260 pred_block += 20; 261 } 262 263 for (i = 0; i < 24; i += 4) 264 { 265 *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); 266 pred_block += 12; 267 *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); 268 pred_block += 12; 269 *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); 270 pred_block += 12; 271 *((uint32*)pred_block) = *((uint32*)(pred_block + 8)); 272 pred_block += 12; 273 } 274 275 } 276 #else 277 DeblockMb(video, x_pos, y_pos, curL, curCb, curCr); 278 #endif 279 280 return ; 281 } 282 #endif 283 284 /* 285 ***************************************************************************************** 286 * \brief Deblocking filter for one macroblock. 287 ***************************************************************************************** 288 */ 289 290 void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV) 291 { 292 AVCMacroblock *MbP, *MbQ; 293 int edge, QP, QPC; 294 int filterLeftMbEdgeFlag = (mb_x != 0); 295 int filterTopMbEdgeFlag = (mb_y != 0); 296 int pitch = video->currPic->pitch; 297 int indexA, indexB, tmp; 298 int Alpha, Beta, Alpha_c, Beta_c; 299 int mbNum = mb_y * video->PicWidthInMbs + mb_x; 300 int *clipTable, *clipTable_c, *qp_clip_tab; 301 uint8 Strength[16]; 302 void* str; 303 304 MbQ = &(video->mblock[mbNum]); // current Mb 305 306 307 // If filter is disabled, return 308 if (video->sliceHdr->disable_deblocking_filter_idc == 1) return; 309 310 if (video->sliceHdr->disable_deblocking_filter_idc == 2) 311 { 312 // don't filter at slice boundaries 313 filterLeftMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - 1, mbNum); 314 filterTopMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - video->PicWidthInMbs, mbNum); 315 } 316 317 /* NOTE: edge=0 and edge=1~3 are separate cases because of the difference of MbP, index A and indexB calculation */ 318 /* for edge = 1~3, MbP, indexA and indexB remain the same, and thus there is no need to re-calculate them for each edge */ 319 320 qp_clip_tab = (int *)QP_CLIP_TAB + 12; 321 322 /* 1.VERTICAL EDGE + MB BOUNDARY (edge = 0) */ 323 if (filterLeftMbEdgeFlag) 324 { 325 MbP = MbQ - 1; 326 //GetStrength(video, Strength, MbP, MbQ, 0, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge 327 GetStrength_Edge0(Strength, MbP, MbQ, 0); 328 329 str = (void*)Strength; //de-ref type-punned pointer fix 330 if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0 331 { 332 QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks; 333 indexA = QP + video->FilterOffsetA; 334 indexB = QP + video->FilterOffsetB; 335 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 336 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 337 338 Alpha = ALPHA_TABLE[indexA]; 339 Beta = BETA_TABLE[indexB]; 340 clipTable = (int *) CLIP_TAB[indexA]; 341 342 if (Alpha > 0 && Beta > 0) 343 #ifdef USE_PRED_BLOCK 344 EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, 20); 345 #else 346 EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, pitch); 347 #endif 348 349 QPC = (MbP->QPc + MbQ->QPc + 1) >> 1; 350 indexA = QPC + video->FilterOffsetA; 351 indexB = QPC + video->FilterOffsetB; 352 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 353 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 354 355 Alpha = ALPHA_TABLE[indexA]; 356 Beta = BETA_TABLE[indexB]; 357 clipTable = (int *) CLIP_TAB[indexA]; 358 if (Alpha > 0 && Beta > 0) 359 { 360 #ifdef USE_PRED_BLOCK 361 EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, 12); 362 EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, 12); 363 #else 364 EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1); 365 EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1); 366 #endif 367 } 368 } 369 370 } /* end of: if(filterLeftMbEdgeFlag) */ 371 372 /* 2.VERTICAL EDGE (no boundary), the edges are all inside a MB */ 373 /* First calculate the necesary parameters all at once, outside the loop */ 374 MbP = MbQ; 375 376 indexA = MbQ->QPy + video->FilterOffsetA; 377 indexB = MbQ->QPy + video->FilterOffsetB; 378 // index 379 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 380 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 381 382 Alpha = ALPHA_TABLE[indexA]; 383 Beta = BETA_TABLE[indexB]; 384 clipTable = (int *)CLIP_TAB[indexA]; 385 386 /* Save Alpha, Beta and clipTable for future use, with the obselete variables filterLeftMbEdgeFlag, mbNum amd tmp */ 387 filterLeftMbEdgeFlag = Alpha; 388 mbNum = Beta; 389 tmp = (int)clipTable; 390 391 indexA = MbQ->QPc + video->FilterOffsetA; 392 indexB = MbQ->QPc + video->FilterOffsetB; 393 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 394 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 395 396 Alpha_c = ALPHA_TABLE[indexA]; 397 Beta_c = BETA_TABLE[indexB]; 398 clipTable_c = (int *)CLIP_TAB[indexA]; 399 400 GetStrength_VerticalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge 401 402 for (edge = 1; edge < 4; edge++) // 4 vertical strips of 16 pel 403 { 404 //GetStrength_VerticalEdges(video, Strength, MbP, MbQ, 0, edge); // Strength for 4 blks in 1 stripe, 0 => vertical edge 405 if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0 406 { 407 if (Alpha > 0 && Beta > 0) 408 #ifdef USE_PRED_BLOCK 409 EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, 20); 410 #else 411 EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, pitch); 412 #endif 413 414 if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0) 415 { 416 #ifdef USE_PRED_BLOCK 417 EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); 418 EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); 419 #else 420 EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); 421 EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); 422 #endif 423 } 424 } 425 426 } //end edge 427 428 429 430 /* 3.HORIZONTAL EDGE + MB BOUNDARY (edge = 0) */ 431 if (filterTopMbEdgeFlag) 432 { 433 MbP = MbQ - video->PicWidthInMbs; 434 //GetStrength(video, Strength, MbP, MbQ, 1, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge 435 GetStrength_Edge0(Strength, MbP, MbQ, 1); 436 str = (void*)Strength; //de-ref type-punned pointer fix 437 if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0 438 { 439 QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks; 440 indexA = QP + video->FilterOffsetA; 441 indexB = QP + video->FilterOffsetB; 442 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 443 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 444 445 Alpha = ALPHA_TABLE[indexA]; 446 Beta = BETA_TABLE[indexB]; 447 clipTable = (int *)CLIP_TAB[indexA]; 448 449 if (Alpha > 0 && Beta > 0) 450 { 451 #ifdef USE_PRED_BLOCK 452 EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, 20); 453 #else 454 EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, pitch); 455 #endif 456 } 457 458 QPC = (MbP->QPc + MbQ->QPc + 1) >> 1; 459 indexA = QPC + video->FilterOffsetA; 460 indexB = QPC + video->FilterOffsetB; 461 indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA) 462 indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB) 463 464 Alpha = ALPHA_TABLE[indexA]; 465 Beta = BETA_TABLE[indexB]; 466 clipTable = (int *)CLIP_TAB[indexA]; 467 if (Alpha > 0 && Beta > 0) 468 { 469 #ifdef USE_PRED_BLOCK 470 EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, 12); 471 EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, 12); 472 #else 473 EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1); 474 EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1); 475 #endif 476 } 477 } 478 479 } /* end of: if(filterTopMbEdgeFlag) */ 480 481 482 /* 4.HORIZONTAL EDGE (no boundary), the edges are inside a MB */ 483 MbP = MbQ; 484 485 /* Recover Alpha, Beta and clipTable for edge!=0 with the variables filterLeftMbEdgeFlag, mbNum and tmp */ 486 /* Note that Alpha_c, Beta_c and clipTable_c for chroma is already calculated */ 487 Alpha = filterLeftMbEdgeFlag; 488 Beta = mbNum; 489 clipTable = (int *)tmp; 490 491 GetStrength_HorizontalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge 492 493 for (edge = 1; edge < 4; edge++) // 4 horicontal strips of 16 pel 494 { 495 //GetStrength(video, Strength, MbP, MbQ, 1, edge); // Strength for 4 blks in 1 stripe 1 => horizontal edge 496 if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0 497 { 498 if (Alpha > 0 && Beta > 0) 499 { 500 #ifdef USE_PRED_BLOCK 501 EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*20, Strength + (edge << 2), Alpha, Beta, clipTable, 20); 502 #else 503 EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*pitch, Strength + (edge << 2), Alpha, Beta, clipTable, pitch); 504 #endif 505 } 506 507 if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0) 508 { 509 #ifdef USE_PRED_BLOCK 510 EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); 511 EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12); 512 #else 513 EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); 514 EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1); 515 #endif 516 } 517 } 518 519 } //end edge 520 521 return; 522 } 523 524 /* 525 ***************************************************************************************************** 526 * \brief returns a buffer of 4 Strength values for one stripe in a mb (for different Frame types) 527 ***************************************************************************************************** 528 */ 529 530 void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir) 531 { 532 int tmp; 533 int16 *ptrQ, *ptrP; 534 void* vptr; 535 uint8 *pStrength; 536 void* refIdx; 537 538 if (MbP->mbMode == AVC_I4 || MbP->mbMode == AVC_I16 || 539 MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) 540 { 541 542 *((int*)Strength) = ININT_STRENGTH[0]; // Start with Strength=3. or Strength=4 for Mb-edge 543 544 } 545 else // if not intra or SP-frame 546 { 547 *((int*)Strength) = 0; 548 549 if (dir == 0) // Vertical Edge 0 550 { 551 552 //1. Check the ref_frame_id 553 refIdx = (void*) MbQ->RefIdx; //de-ref type-punned pointer fix 554 ptrQ = (int16*)refIdx; 555 refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer fix 556 ptrP = (int16*)refIdx; 557 pStrength = Strength; 558 if (ptrQ[0] != ptrP[1]) pStrength[0] = 1; 559 if (ptrQ[2] != ptrP[3]) pStrength[2] = 1; 560 pStrength[1] = pStrength[0]; 561 pStrength[3] = pStrength[2]; 562 563 //2. Check the non-zero coeff blocks (4x4) 564 if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[3] != 0) pStrength[0] = 2; 565 if (MbQ->nz_coeff[4] != 0 || MbP->nz_coeff[7] != 0) pStrength[1] = 2; 566 if (MbQ->nz_coeff[8] != 0 || MbP->nz_coeff[11] != 0) pStrength[2] = 2; 567 if (MbQ->nz_coeff[12] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2; 568 569 //3. Only need to check the mv difference 570 vptr = (void*)MbQ->mvL0; // for deref type-punned pointer 571 ptrQ = (int16*)vptr; 572 ptrP = (int16*)(MbP->mvL0 + 3); // points to 4x4 block #3 (the 4th column) 573 574 // 1st blk 575 if (*pStrength == 0) 576 { 577 // check |mv difference| >= 4 578 tmp = *ptrQ++ - *ptrP++; 579 if (tmp < 0) tmp = -tmp; 580 if (tmp >= 4) *pStrength = 1; 581 582 tmp = *ptrQ-- - *ptrP--; 583 if (tmp < 0) tmp = -tmp; 584 if (tmp >= 4) *pStrength = 1; 585 } 586 587 pStrength++; 588 ptrQ += 8; 589 ptrP += 8; 590 591 // 2nd blk 592 if (*pStrength == 0) 593 { 594 // check |mv difference| >= 4 595 tmp = *ptrQ++ - *ptrP++; 596 if (tmp < 0) tmp = -tmp; 597 if (tmp >= 4) *pStrength = 1; 598 599 tmp = *ptrQ-- - *ptrP--; 600 if (tmp < 0) tmp = -tmp; 601 if (tmp >= 4) *pStrength = 1; 602 } 603 604 pStrength++; 605 ptrQ += 8; 606 ptrP += 8; 607 608 // 3rd blk 609 if (*pStrength == 0) 610 { 611 // check |mv difference| >= 4 612 tmp = *ptrQ++ - *ptrP++; 613 if (tmp < 0) tmp = -tmp; 614 if (tmp >= 4) *pStrength = 1; 615 616 tmp = *ptrQ-- - *ptrP--; 617 if (tmp < 0) tmp = -tmp; 618 if (tmp >= 4) *pStrength = 1; 619 } 620 621 pStrength++; 622 ptrQ += 8; 623 ptrP += 8; 624 625 // 4th blk 626 if (*pStrength == 0) 627 { 628 // check |mv difference| >= 4 629 tmp = *ptrQ++ - *ptrP++; 630 if (tmp < 0) tmp = -tmp; 631 if (tmp >= 4) *pStrength = 1; 632 633 tmp = *ptrQ-- - *ptrP--; 634 if (tmp < 0) tmp = -tmp; 635 if (tmp >= 4) *pStrength = 1; 636 } 637 } 638 else // Horizontal Edge 0 639 { 640 641 //1. Check the ref_frame_id 642 refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer 643 ptrQ = (int16*)refIdx; 644 refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer 645 ptrP = (int16*)refIdx; 646 pStrength = Strength; 647 if (ptrQ[0] != ptrP[2]) pStrength[0] = 1; 648 if (ptrQ[1] != ptrP[3]) pStrength[2] = 1; 649 pStrength[1] = pStrength[0]; 650 pStrength[3] = pStrength[2]; 651 652 //2. Check the non-zero coeff blocks (4x4) 653 if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[12] != 0) pStrength[0] = 2; 654 if (MbQ->nz_coeff[1] != 0 || MbP->nz_coeff[13] != 0) pStrength[1] = 2; 655 if (MbQ->nz_coeff[2] != 0 || MbP->nz_coeff[14] != 0) pStrength[2] = 2; 656 if (MbQ->nz_coeff[3] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2; 657 658 //3. Only need to check the mv difference 659 vptr = (void*)MbQ->mvL0; 660 ptrQ = (int16*)vptr; 661 ptrP = (int16*)(MbP->mvL0 + 12); // points to 4x4 block #12 (the 4th row) 662 663 // 1st blk 664 if (*pStrength == 0) 665 { 666 // check |mv difference| >= 4 667 tmp = *ptrQ++ - *ptrP++; 668 if (tmp < 0) tmp = -tmp; 669 if (tmp >= 4) *pStrength = 1; 670 671 tmp = *ptrQ-- - *ptrP--; 672 if (tmp < 0) tmp = -tmp; 673 if (tmp >= 4) *pStrength = 1; 674 } 675 676 pStrength++; 677 ptrQ += 2; 678 ptrP += 2; 679 680 // 2nd blk 681 if (*pStrength == 0) 682 { 683 // check |mv difference| >= 4 684 tmp = *ptrQ++ - *ptrP++; 685 if (tmp < 0) tmp = -tmp; 686 if (tmp >= 4) *pStrength = 1; 687 688 tmp = *ptrQ-- - *ptrP--; 689 if (tmp < 0) tmp = -tmp; 690 if (tmp >= 4) *pStrength = 1; 691 } 692 693 pStrength++; 694 ptrQ += 2; 695 ptrP += 2; 696 697 // 3rd blk 698 if (*pStrength == 0) 699 { 700 // check |mv difference| >= 4 701 tmp = *ptrQ++ - *ptrP++; 702 if (tmp < 0) tmp = -tmp; 703 if (tmp >= 4) *pStrength = 1; 704 705 tmp = *ptrQ-- - *ptrP--; 706 if (tmp < 0) tmp = -tmp; 707 if (tmp >= 4) *pStrength = 1; 708 } 709 710 pStrength++; 711 ptrQ += 2; 712 ptrP += 2; 713 714 // 4th blk 715 if (*pStrength == 0) 716 { 717 // check |mv difference| >= 4 718 tmp = *ptrQ++ - *ptrP++; 719 if (tmp < 0) tmp = -tmp; 720 if (tmp >= 4) *pStrength = 1; 721 722 tmp = *ptrQ-- - *ptrP--; 723 if (tmp < 0) tmp = -tmp; 724 if (tmp >= 4) *pStrength = 1; 725 } 726 727 } /* end of: else if(dir == 0) */ 728 729 } /* end of: if( !(MbP->mbMode == AVC_I4 ...) */ 730 } 731 732 733 void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ) 734 { 735 int idx, tmp; 736 int16 *ptr, *pmvx, *pmvy; 737 uint8 *pnz; 738 uint8 *pStrength, *pStr; 739 void* refIdx; 740 741 if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) 742 { 743 *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge 744 *((int*)(Strength + 4)) = ININT_STRENGTH[2]; 745 *((int*)(Strength + 8)) = ININT_STRENGTH[3]; 746 } 747 else // Not intra or SP-frame 748 { 749 750 *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2. 751 *((int*)(Strength + 4)) = 0; 752 *((int*)(Strength + 8)) = 0; 753 754 //1. Check the ref_frame_id 755 refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer fix 756 ptr = (int16*)refIdx; 757 pStrength = Strength; 758 if (ptr[0] != ptr[1]) pStrength[4] = 1; 759 if (ptr[2] != ptr[3]) pStrength[6] = 1; 760 pStrength[5] = pStrength[4]; 761 pStrength[7] = pStrength[6]; 762 763 //2. Check the nz_coeff block and mv difference 764 pmvx = (int16*)(MbQ->mvL0 + 1); // points to 4x4 block #1,not #0 765 pmvy = pmvx + 1; 766 for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2 767 { 768 // first/third row : 1,2,3 or 9,10,12 769 // Strength = 2 for a whole row 770 pnz = MbQ->nz_coeff + (idx << 2); 771 if (*pnz++ != 0) *pStrength = 2; 772 if (*pnz++ != 0) 773 { 774 *pStrength = 2; 775 *(pStrength + 4) = 2; 776 } 777 if (*pnz++ != 0) 778 { 779 *(pStrength + 4) = 2; 780 *(pStrength + 8) = 2; 781 } 782 if (*pnz != 0) *(pStrength + 8) = 2; 783 784 // Then Strength = 1 785 if (*pStrength == 0) 786 { 787 //within the same 8x8 block, no need to check the reference id 788 //only need to check the |mv difference| >= 4 789 tmp = *pmvx - *(pmvx - 2); 790 if (tmp < 0) tmp = -tmp; 791 if (tmp >= 4) *pStrength = 1; 792 793 tmp = *pmvy - *(pmvy - 2); 794 if (tmp < 0) tmp = -tmp; 795 if (tmp >= 4) *pStrength = 1; 796 } 797 798 pmvx += 2; 799 pmvy += 2; 800 pStr = pStrength + 4; 801 802 if (*pStr == 0) 803 { 804 //check the |mv difference| >= 4 805 tmp = *pmvx - *(pmvx - 2); 806 if (tmp < 0) tmp = -tmp; 807 if (tmp >= 4) *pStr = 1; 808 809 tmp = *pmvy - *(pmvy - 2); 810 if (tmp < 0) tmp = -tmp; 811 if (tmp >= 4) *pStr = 1; 812 } 813 814 pmvx += 2; 815 pmvy += 2; 816 pStr = pStrength + 8; 817 818 if (*pStr == 0) 819 { 820 //within the same 8x8 block, no need to check the reference id 821 //only need to check the |mv difference| >= 4 822 tmp = *pmvx - *(pmvx - 2); 823 if (tmp < 0) tmp = -tmp; 824 if (tmp >= 4) *pStr = 1; 825 826 tmp = *pmvy - *(pmvy - 2); 827 if (tmp < 0) tmp = -tmp; 828 if (tmp >= 4) *pStr = 1; 829 } 830 831 // Second/fourth row: 5,6,7 or 14,15,16 832 // Strength = 2 for a whole row 833 pnz = MbQ->nz_coeff + ((idx + 1) << 2); 834 if (*pnz++ != 0) *(pStrength + 1) = 2; 835 if (*pnz++ != 0) 836 { 837 *(pStrength + 1) = 2; 838 *(pStrength + 5) = 2; 839 } 840 if (*pnz++ != 0) 841 { 842 *(pStrength + 5) = 2; 843 *(pStrength + 9) = 2; 844 } 845 if (*pnz != 0) *(pStrength + 9) = 2; 846 847 // Then Strength = 1 848 pmvx += 4; 849 pmvy += 4; 850 pStr = pStrength + 1; 851 if (*pStr == 0) 852 { 853 //within the same 8x8 block, no need to check the reference id 854 //only need to check the |mv difference| >= 4 855 tmp = *pmvx - *(pmvx - 2); 856 if (tmp < 0) tmp = -tmp; 857 if (tmp >= 4) *pStr = 1; 858 859 tmp = *pmvy - *(pmvy - 2); 860 if (tmp < 0) tmp = -tmp; 861 if (tmp >= 4) *pStr = 1; 862 } 863 864 pmvx += 2; 865 pmvy += 2; 866 pStr = pStrength + 5; 867 868 if (*pStr == 0) 869 { 870 //check the |mv difference| >= 4 871 tmp = *pmvx - *(pmvx - 2); 872 if (tmp < 0) tmp = -tmp; 873 if (tmp >= 4) *pStr = 1; 874 875 tmp = *pmvy - *(pmvy - 2); 876 if (tmp < 0) tmp = -tmp; 877 if (tmp >= 4) *pStr = 1; 878 } 879 880 pmvx += 2; 881 pmvy += 2; 882 pStr = pStrength + 9; 883 884 if (*pStr == 0) 885 { 886 //within the same 8x8 block, no need to check the reference id 887 //only need to check the |mv difference| >= 4 888 tmp = *pmvx - *(pmvx - 2); 889 if (tmp < 0) tmp = -tmp; 890 if (tmp >= 4) *pStr = 1; 891 892 tmp = *pmvy - *(pmvy - 2); 893 if (tmp < 0) tmp = -tmp; 894 if (tmp >= 4) *pStr = 1; 895 } 896 897 // update some variables for the next two rows 898 pmvx += 4; 899 pmvy += 4; 900 pStrength += 2; 901 902 } /* end of: for(idx=0; idx<2; idx++) */ 903 904 } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */ 905 } 906 907 908 void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ) 909 { 910 int idx, tmp; 911 int16 *ptr, *pmvx, *pmvy; 912 uint8 *pStrength, *pStr; 913 void* refIdx; 914 915 if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16) 916 { 917 *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge 918 *((int*)(Strength + 4)) = ININT_STRENGTH[2]; 919 *((int*)(Strength + 8)) = ININT_STRENGTH[3]; 920 } 921 else // Not intra or SP-frame 922 { 923 924 *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2. 925 *((int*)(Strength + 4)) = 0; // for non-intra MB, strength = 0, 1 or 2. 926 *((int*)(Strength + 8)) = 0; // for non-intra MB, strength = 0, 1 or 2. 927 928 929 //1. Check the ref_frame_id 930 refIdx = (void*) MbQ->RefIdx; // de-ref type-punned fix 931 ptr = (int16*) refIdx; 932 pStrength = Strength; 933 if (ptr[0] != ptr[2]) pStrength[4] = 1; 934 if (ptr[1] != ptr[3]) pStrength[6] = 1; 935 pStrength[5] = pStrength[4]; 936 pStrength[7] = pStrength[6]; 937 938 //2. Check the nz_coeff block and mv difference 939 pmvx = (int16*)(MbQ->mvL0 + 4); // points to 4x4 block #4,not #0 940 pmvy = pmvx + 1; 941 for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2 942 { 943 // first/third row : 1,2,3 or 9,10,12 944 // Strength = 2 for a whole row 945 if (MbQ->nz_coeff[idx] != 0) *pStrength = 2; 946 if (MbQ->nz_coeff[4+idx] != 0) 947 { 948 *pStrength = 2; 949 *(pStrength + 4) = 2; 950 } 951 if (MbQ->nz_coeff[8+idx] != 0) 952 { 953 *(pStrength + 4) = 2; 954 *(pStrength + 8) = 2; 955 } 956 if (MbQ->nz_coeff[12+idx] != 0) *(pStrength + 8) = 2; 957 958 // Then Strength = 1 959 if (*pStrength == 0) 960 { 961 //within the same 8x8 block, no need to check the reference id 962 //only need to check the |mv difference| >= 4 963 tmp = *pmvx - *(pmvx - 8); 964 if (tmp < 0) tmp = -tmp; 965 if (tmp >= 4) *pStrength = 1; 966 967 tmp = *pmvy - *(pmvy - 8); 968 if (tmp < 0) tmp = -tmp; 969 if (tmp >= 4) *pStrength = 1; 970 } 971 972 pmvx += 8; 973 pmvy += 8; 974 pStr = pStrength + 4; 975 976 if (*pStr == 0) 977 { 978 //check the |mv difference| >= 4 979 tmp = *pmvx - *(pmvx - 8); 980 if (tmp < 0) tmp = -tmp; 981 if (tmp >= 4) *pStr = 1; 982 983 tmp = *pmvy - *(pmvy - 8); 984 if (tmp < 0) tmp = -tmp; 985 if (tmp >= 4) *pStr = 1; 986 } 987 988 pmvx += 8; 989 pmvy += 8; 990 pStr = pStrength + 8; 991 992 if (*pStr == 0) 993 { 994 //within the same 8x8 block, no need to check the reference id 995 //only need to check the |mv difference| >= 4 996 tmp = *pmvx - *(pmvx - 8); 997 if (tmp < 0) tmp = -tmp; 998 if (tmp >= 4) *pStr = 1; 999 1000 tmp = *pmvy - *(pmvy - 8); 1001 if (tmp < 0) tmp = -tmp; 1002 if (tmp >= 4) *pStr = 1; 1003 } 1004 1005 // Second/fourth row: 5,6,7 or 14,15,16 1006 // Strength = 2 for a whole row 1007 if (MbQ->nz_coeff[idx+1] != 0) *(pStrength + 1) = 2; 1008 if (MbQ->nz_coeff[4+idx+1] != 0) 1009 { 1010 *(pStrength + 1) = 2; 1011 *(pStrength + 5) = 2; 1012 } 1013 if (MbQ->nz_coeff[8+idx+1] != 0) 1014 { 1015 *(pStrength + 5) = 2; 1016 *(pStrength + 9) = 2; 1017 } 1018 if (MbQ->nz_coeff[12+idx+1] != 0) *(pStrength + 9) = 2; 1019 1020 // Then Strength = 1 1021 pmvx -= 14; 1022 pmvy -= 14; // -14 = -16 + 2 1023 pStr = pStrength + 1; 1024 if (*pStr == 0) 1025 { 1026 //within the same 8x8 block, no need to check the reference id 1027 //only need to check the |mv difference| >= 4 1028 tmp = *pmvx - *(pmvx - 8); 1029 if (tmp < 0) tmp = -tmp; 1030 if (tmp >= 4) *pStr = 1; 1031 1032 tmp = *pmvy - *(pmvy - 8); 1033 if (tmp < 0) tmp = -tmp; 1034 if (tmp >= 4) *pStr = 1; 1035 } 1036 1037 pmvx += 8; 1038 pmvy += 8; 1039 pStr = pStrength + 5; 1040 1041 if (*pStr == 0) 1042 { 1043 //check the |mv difference| >= 4 1044 tmp = *pmvx - *(pmvx - 8); 1045 if (tmp < 0) tmp = -tmp; 1046 if (tmp >= 4) *pStr = 1; 1047 1048 tmp = *pmvy - *(pmvy - 8); 1049 if (tmp < 0) tmp = -tmp; 1050 if (tmp >= 4) *pStr = 1; 1051 } 1052 1053 pmvx += 8; 1054 pmvy += 8; 1055 pStr = pStrength + 9; 1056 1057 if (*pStr == 0) 1058 { 1059 //within the same 8x8 block, no need to check the reference id 1060 //only need to check the |mv difference| >= 4 1061 tmp = *pmvx - *(pmvx - 8); 1062 if (tmp < 0) tmp = -tmp; 1063 if (tmp >= 4) *pStr = 1; 1064 1065 tmp = *pmvy - *(pmvy - 8); 1066 if (tmp < 0) tmp = -tmp; 1067 if (tmp >= 4) *pStr = 1; 1068 } 1069 1070 // update some variables for the next two rows 1071 pmvx -= 14; 1072 pmvy -= 14; // -14 = -16 + 2 1073 pStrength += 2; 1074 1075 } /* end of: for(idx=0; idx<2; idx++) */ 1076 1077 } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */ 1078 } 1079 1080 /* 1081 ***************************************************************************************** 1082 * \brief Filters one edge of 16 (luma) or 8 (chroma) pel 1083 ***************************************************************************************** 1084 */ 1085 1086 void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) 1087 { 1088 int pel, ap = 0, aq = 0, Strng; 1089 int C0, c0, dif, AbsDelta, tmp, tmp1; 1090 int L2 = 0, L1, L0, R0, R1, R2 = 0, RL0; 1091 1092 1093 if (Strength[0] == 4) /* INTRA strong filtering */ 1094 { 1095 for (pel = 0; pel < 16; pel++) 1096 { 1097 R0 = SrcPtr[0]; 1098 R1 = SrcPtr[pitch]; 1099 L0 = SrcPtr[-pitch]; 1100 L1 = SrcPtr[-(pitch<<1)]; 1101 1102 // |R0 - R1| < Beta 1103 tmp1 = R0 - R1; 1104 if (tmp1 < 0) tmp1 = -tmp1; 1105 tmp = (tmp1 - Beta); 1106 1107 //|L0 - L1| < Beta 1108 tmp1 = L0 - L1; 1109 if (tmp1 < 0) tmp1 = -tmp1; 1110 tmp &= (tmp1 - Beta); 1111 1112 //|R0 - L0| < Alpha 1113 AbsDelta = R0 - L0; 1114 if (AbsDelta < 0) AbsDelta = -AbsDelta; 1115 tmp &= (AbsDelta - Alpha); 1116 1117 if (tmp < 0) 1118 { 1119 AbsDelta -= ((Alpha >> 2) + 2); 1120 R2 = SrcPtr[pitch<<1]; //inc2 1121 L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3 1122 1123 // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2) 1124 tmp = R0 - R2; 1125 if (tmp < 0) tmp = -tmp; 1126 aq = AbsDelta & (tmp - Beta); 1127 1128 // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2) 1129 tmp = L0 - L2; 1130 if (tmp < 0) tmp = -tmp; 1131 ap = AbsDelta & (tmp - Beta); 1132 1133 if (aq < 0) 1134 { 1135 tmp = R1 + R0 + L0; 1136 SrcPtr[0] = (L1 + (tmp << 1) + R2 + 4) >> 3; 1137 tmp += R2; 1138 SrcPtr[pitch] = (tmp + 2) >> 2; 1139 SrcPtr[pitch<<1] = (((SrcPtr[(pitch+(pitch<<1))] + R2) << 1) + tmp + 4) >> 3; 1140 } 1141 else 1142 SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2; 1143 1144 if (ap < 0) 1145 { 1146 tmp = L1 + R0 + L0; 1147 SrcPtr[-pitch] = (R1 + (tmp << 1) + L2 + 4) >> 3; 1148 tmp += L2; 1149 SrcPtr[-(pitch<<1)] = (tmp + 2) >> 2; 1150 SrcPtr[-(pitch+(pitch<<1))] = (((SrcPtr[-(pitch<<2)] + L2) << 1) + tmp + 4) >> 3; 1151 } 1152 else 1153 SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2; 1154 1155 } /* if(tmp < 0) */ 1156 1157 SrcPtr ++; // Increment to next set of pixel 1158 1159 } /* end of: for(pel=0; pel<16; pel++) */ 1160 1161 } /* if(Strength[0] == 4) */ 1162 1163 else /* Normal filtering */ 1164 { 1165 for (pel = 0; pel < 16; pel++) 1166 { 1167 Strng = Strength[pel >> 2]; 1168 if (Strng) 1169 { 1170 R0 = SrcPtr[0]; 1171 R1 = SrcPtr[pitch]; 1172 L0 = SrcPtr[-pitch]; 1173 L1 = SrcPtr[-(pitch<<1)]; // inc2 1174 1175 //|R0 - L0| < Alpha 1176 tmp1 = R0 - L0; 1177 if (tmp1 < 0) tmp1 = -tmp1; 1178 tmp = (tmp1 - Alpha); 1179 1180 // |R0 - R1| < Beta 1181 tmp1 = R0 - R1; 1182 if (tmp1 < 0) tmp1 = -tmp1; 1183 tmp &= (tmp1 - Beta); 1184 1185 //|L0 - L1| < Beta 1186 tmp1 = L0 - L1; 1187 if (tmp1 < 0) tmp1 = -tmp1; 1188 tmp &= (tmp1 - Beta); 1189 1190 if (tmp < 0) 1191 { 1192 R2 = SrcPtr[pitch<<1]; //inc2 1193 L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3 1194 1195 // |R0 - R2| < Beta 1196 tmp = R0 - R2; 1197 if (tmp < 0) tmp = -tmp; 1198 aq = tmp - Beta; 1199 1200 // |L0 - L2| < Beta 1201 tmp = L0 - L2; 1202 if (tmp < 0) tmp = -tmp; 1203 ap = tmp - Beta; 1204 1205 1206 c0 = C0 = clipTable[Strng]; 1207 if (ap < 0) c0++; 1208 if (aq < 0) c0++; 1209 1210 //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); 1211 dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; 1212 tmp = dif + c0; 1213 if ((uint)tmp > (uint)c0 << 1) 1214 { 1215 tmp = ~(tmp >> 31); 1216 dif = (tmp & (c0 << 1)) - c0; 1217 } 1218 1219 //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); 1220 //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); 1221 RL0 = R0 + L0; 1222 R0 -= dif; 1223 L0 += dif; 1224 if ((uint)R0 > 255) 1225 { 1226 tmp = ~(R0 >> 31); 1227 R0 = tmp & 255; 1228 } 1229 if ((uint)L0 > 255) 1230 { 1231 tmp = ~(L0 >> 31); 1232 L0 = tmp & 255; 1233 } 1234 SrcPtr[-pitch] = L0; 1235 SrcPtr[0] = R0; 1236 1237 if (C0 != 0) /* Multiple zeros in the clip tables */ 1238 { 1239 if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1); 1240 { 1241 R2 = (R2 + ((RL0 + 1) >> 1) - (R1 << 1)) >> 1; 1242 tmp = R2 + C0; 1243 if ((uint)tmp > (uint)C0 << 1) 1244 { 1245 tmp = ~(tmp >> 31); 1246 R2 = (tmp & (C0 << 1)) - C0; 1247 } 1248 SrcPtr[pitch] += R2; 1249 } 1250 1251 if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1); 1252 { 1253 L2 = (L2 + ((RL0 + 1) >> 1) - (L1 << 1)) >> 1; 1254 tmp = L2 + C0; 1255 if ((uint)tmp > (uint)C0 << 1) 1256 { 1257 tmp = ~(tmp >> 31); 1258 L2 = (tmp & (C0 << 1)) - C0; 1259 } 1260 SrcPtr[-(pitch<<1)] += L2; 1261 } 1262 } 1263 1264 } /* if(tmp < 0) */ 1265 1266 } /* end of: if((Strng = Strength[pel >> 2])) */ 1267 1268 SrcPtr ++; // Increment to next set of pixel 1269 1270 } /* for(pel=0; pel<16; pel++) */ 1271 1272 } /* else if(Strength[0] == 4) */ 1273 } 1274 1275 void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) 1276 { 1277 int pel, ap = 1, aq = 1; 1278 int C0, c0, dif, AbsDelta, Strng, tmp, tmp1; 1279 int L2 = 0, L1, L0, R0, R1, R2 = 0; 1280 uint8 *ptr, *ptr1; 1281 register uint R_in, L_in; 1282 uint R_out, L_out; 1283 1284 1285 if (Strength[0] == 4) /* INTRA strong filtering */ 1286 { 1287 1288 for (pel = 0; pel < 16; pel++) 1289 { 1290 1291 // Read 8 pels 1292 R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} 1293 L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} 1294 R1 = (R_in >> 8) & 0xff; 1295 R0 = R_in & 0xff; 1296 L0 = L_in >> 24; 1297 L1 = (L_in >> 16) & 0xff; 1298 1299 // |R0 - R1| < Beta 1300 tmp1 = (R_in & 0xff) - R1; 1301 if (tmp1 < 0) tmp1 = -tmp1; 1302 tmp = (tmp1 - Beta); 1303 1304 1305 //|L0 - L1| < Beta 1306 tmp1 = (L_in >> 24) - L1; 1307 if (tmp1 < 0) tmp1 = -tmp1; 1308 tmp &= (tmp1 - Beta); 1309 1310 //|R0 - L0| < Alpha 1311 AbsDelta = (R_in & 0xff) - (L_in >> 24); 1312 if (AbsDelta < 0) AbsDelta = -AbsDelta; 1313 tmp &= (AbsDelta - Alpha); 1314 1315 if (tmp < 0) 1316 { 1317 AbsDelta -= ((Alpha >> 2) + 2); 1318 R2 = (R_in >> 16) & 0xff; 1319 L2 = (L_in >> 8) & 0xff; 1320 1321 // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2) 1322 tmp1 = (R_in & 0xff) - R2; 1323 if (tmp1 < 0) tmp1 = -tmp1; 1324 aq = AbsDelta & (tmp1 - Beta); 1325 1326 // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2) 1327 tmp1 = (L_in >> 24) - L2; 1328 if (tmp1 < 0) tmp1 = -tmp1; 1329 ap = AbsDelta & (tmp1 - Beta); 1330 1331 1332 ptr = SrcPtr; 1333 if (aq < 0) 1334 { 1335 R_out = (R_in >> 24) << 24; // Keep R3 at the fourth byte 1336 1337 tmp = R0 + L0 + R1; 1338 R_out |= (((tmp << 1) + L1 + R2 + 4) >> 3); 1339 tmp += R2; 1340 R_out |= (((tmp + 2) >> 2) << 8); 1341 tmp1 = ((R_in >> 24) + R2) << 1; 1342 R_out |= (((tmp1 + tmp + 4) >> 3) << 16); 1343 1344 *((uint *)SrcPtr) = R_out; 1345 } 1346 else 1347 *ptr = ((R1 << 1) + R0 + L1 + 2) >> 2; 1348 1349 1350 if (ap < 0) 1351 { 1352 L_out = (L_in << 24) >> 24; // Keep L3 at the first byte 1353 1354 tmp = R0 + L0 + L1; 1355 L_out |= ((((tmp << 1) + R1 + L2 + 4) >> 3) << 24); 1356 tmp += L2; 1357 L_out |= (((tmp + 2) >> 2) << 16); 1358 tmp1 = ((L_in & 0xff) + L2) << 1; 1359 L_out |= (((tmp1 + tmp + 4) >> 3) << 8); 1360 1361 *((uint *)(SrcPtr - 4)) = L_out; 1362 } 1363 else 1364 *(--ptr) = ((L1 << 1) + L0 + R1 + 2) >> 2; 1365 1366 } /* if(tmp < 0) */ 1367 1368 SrcPtr += pitch; // Increment to next set of pixel 1369 1370 } /* end of: for(pel=0; pel<16; pel++) */ 1371 1372 } /* if(Strength[0] == 4) */ 1373 1374 else /* Normal filtering */ 1375 { 1376 1377 for (pel = 0; pel < 16; pel++) 1378 { 1379 Strng = Strength[pel >> 2]; 1380 if (Strng) 1381 { 1382 // Read 8 pels 1383 R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} 1384 L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} 1385 R1 = (R_in >> 8) & 0xff; 1386 R0 = R_in & 0xff; 1387 L0 = L_in >> 24; 1388 L1 = (L_in >> 16) & 0xff; 1389 1390 //|R0 - L0| < Alpha 1391 tmp = R0 - L0; 1392 if (tmp < 0) tmp = -tmp; 1393 tmp -= Alpha; 1394 1395 // |R0 - R1| < Beta 1396 tmp1 = R0 - R1; 1397 if (tmp1 < 0) tmp1 = -tmp1; 1398 tmp &= (tmp1 - Beta); 1399 1400 //|L0 - L1| < Beta 1401 tmp1 = L0 - L1; 1402 if (tmp1 < 0) tmp1 = -tmp1; 1403 tmp &= (tmp1 - Beta); 1404 1405 if (tmp < 0) 1406 { 1407 L2 = SrcPtr[-3]; 1408 R2 = SrcPtr[2]; 1409 1410 // |R0 - R2| < Beta 1411 tmp = R0 - R2; 1412 if (tmp < 0) tmp = -tmp; 1413 aq = tmp - Beta; 1414 1415 // |L0 - L2| < Beta 1416 tmp = L0 - L2; 1417 if (tmp < 0) tmp = -tmp; 1418 ap = tmp - Beta; 1419 1420 1421 c0 = C0 = clipTable[Strng]; 1422 if (ap < 0) c0++; 1423 if (aq < 0) c0++; 1424 1425 //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); 1426 dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; 1427 tmp = dif + c0; 1428 if ((uint)tmp > (uint)c0 << 1) 1429 { 1430 tmp = ~(tmp >> 31); 1431 dif = (tmp & (c0 << 1)) - c0; 1432 } 1433 1434 ptr = SrcPtr; 1435 ptr1 = SrcPtr - 1; 1436 //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); 1437 //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); 1438 R_in = R0 - dif; 1439 L_in = L0 + dif; /* cannot re-use R0 and L0 here */ 1440 if ((uint)R_in > 255) 1441 { 1442 tmp = ~((int)R_in >> 31); 1443 R_in = tmp & 255; 1444 } 1445 if ((uint)L_in > 255) 1446 { 1447 tmp = ~((int)L_in >> 31); 1448 L_in = tmp & 255; 1449 } 1450 *ptr1-- = L_in; 1451 *ptr++ = R_in; 1452 1453 if (C0 != 0) // Multiple zeros in the clip tables 1454 { 1455 if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1); 1456 { 1457 L2 = (L2 + ((R0 + L0 + 1) >> 1) - (L1 << 1)) >> 1; 1458 tmp = L2 + C0; 1459 if ((uint)tmp > (uint)C0 << 1) 1460 { 1461 tmp = ~(tmp >> 31); 1462 L2 = (tmp & (C0 << 1)) - C0; 1463 } 1464 *ptr1 += L2; 1465 } 1466 1467 if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1); 1468 { 1469 R2 = (R2 + ((R0 + L0 + 1) >> 1) - (R1 << 1)) >> 1; 1470 tmp = R2 + C0; 1471 if ((uint)tmp > (uint)C0 << 1) 1472 { 1473 tmp = ~(tmp >> 31); 1474 R2 = (tmp & (C0 << 1)) - C0; 1475 } 1476 *ptr += R2; 1477 } 1478 } 1479 1480 } /* if(tmp < 0) */ 1481 1482 } /* end of: if((Strng = Strength[pel >> 2])) */ 1483 1484 SrcPtr += pitch; // Increment to next set of pixel 1485 1486 } /* for(pel=0; pel<16; pel++) */ 1487 1488 } /* else if(Strength[0] == 4) */ 1489 1490 } 1491 1492 void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) 1493 { 1494 int pel, Strng; 1495 int c0, dif; 1496 int L1, L0, R0, R1, tmp, tmp1; 1497 uint8 *ptr; 1498 uint R_in, L_in; 1499 1500 1501 for (pel = 0; pel < 16; pel++) 1502 { 1503 Strng = Strength[pel>>2]; 1504 if (Strng) 1505 { 1506 // Read 8 pels 1507 R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0} 1508 L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3} 1509 R1 = (R_in >> 8) & 0xff; 1510 R0 = R_in & 0xff; 1511 L0 = L_in >> 24; 1512 L1 = (L_in >> 16) & 0xff; 1513 1514 // |R0 - R1| < Beta 1515 tmp1 = R0 - R1; 1516 if (tmp1 < 0) tmp1 = -tmp1; 1517 tmp = (tmp1 - Beta); 1518 1519 //|L0 - L1| < Beta 1520 tmp1 = L0 - L1; 1521 if (tmp1 < 0) tmp1 = -tmp1; 1522 tmp &= (tmp1 - Beta); 1523 1524 //|R0 - L0| < Alpha 1525 tmp1 = R0 - L0; 1526 if (tmp1 < 0) tmp1 = -tmp1; 1527 tmp &= (tmp1 - Alpha); 1528 1529 if (tmp < 0) 1530 { 1531 ptr = SrcPtr; 1532 if (Strng == 4) /* INTRA strong filtering */ 1533 { 1534 *ptr-- = ((R1 << 1) + R0 + L1 + 2) >> 2; 1535 *ptr = ((L1 << 1) + L0 + R1 + 2) >> 2; 1536 } 1537 else /* normal filtering */ 1538 { 1539 c0 = clipTable[Strng] + 1; 1540 //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); 1541 dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; 1542 tmp = dif + c0; 1543 if ((uint)tmp > (uint)c0 << 1) 1544 { 1545 tmp = ~(tmp >> 31); 1546 dif = (tmp & (c0 << 1)) - c0; 1547 } 1548 1549 //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); 1550 //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); 1551 L0 += dif; 1552 R0 -= dif; 1553 if ((uint)L0 > 255) 1554 { 1555 tmp = ~(L0 >> 31); 1556 L0 = tmp & 255; 1557 } 1558 if ((uint)R0 > 255) 1559 { 1560 tmp = ~(R0 >> 31); 1561 R0 = tmp & 255; 1562 } 1563 1564 *ptr-- = R0; 1565 *ptr = L0; 1566 } 1567 } 1568 pel ++; 1569 SrcPtr += pitch; // Increment to next set of pixel 1570 1571 } /* end of: if((Strng = Strength[pel >> 2])) */ 1572 else 1573 { 1574 pel += 3; 1575 SrcPtr += (pitch << 1); //PtrInc << 1; 1576 } 1577 1578 } /* end of: for(pel=0; pel<16; pel++) */ 1579 } 1580 1581 1582 void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch) 1583 { 1584 int pel, Strng; 1585 int c0, dif; 1586 int L1, L0, R0, R1, tmp, tmp1; 1587 1588 for (pel = 0; pel < 16; pel++) 1589 { 1590 Strng = Strength[pel>>2]; 1591 if (Strng) 1592 { 1593 R0 = SrcPtr[0]; 1594 L0 = SrcPtr[-pitch]; 1595 L1 = SrcPtr[-(pitch<<1)]; //inc2 1596 R1 = SrcPtr[pitch]; 1597 1598 // |R0 - R1| < Beta 1599 tmp1 = R0 - R1; 1600 if (tmp1 < 0) tmp1 = -tmp1; 1601 tmp = (tmp1 - Beta); 1602 1603 //|L0 - L1| < Beta 1604 tmp1 = L0 - L1; 1605 if (tmp1 < 0) tmp1 = -tmp1; 1606 tmp &= (tmp1 - Beta); 1607 1608 //|R0 - L0| < Alpha 1609 tmp1 = R0 - L0; 1610 if (tmp1 < 0) tmp1 = -tmp1; 1611 tmp &= (tmp1 - Alpha); 1612 1613 if (tmp < 0) 1614 { 1615 if (Strng == 4) /* INTRA strong filtering */ 1616 { 1617 SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2; 1618 SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2; 1619 } 1620 else /* normal filtering */ 1621 { 1622 c0 = clipTable[Strng] + 1; 1623 //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3); 1624 dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3; 1625 tmp = dif + c0; 1626 if ((uint)tmp > (uint)c0 << 1) 1627 { 1628 tmp = ~(tmp >> 31); 1629 dif = (tmp & (c0 << 1)) - c0; 1630 } 1631 1632 //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif); 1633 //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif); 1634 L0 += dif; 1635 R0 -= dif; 1636 if ((uint)L0 > 255) 1637 { 1638 tmp = ~(L0 >> 31); 1639 L0 = tmp & 255; 1640 } 1641 if ((uint)R0 > 255) 1642 { 1643 tmp = ~(R0 >> 31); 1644 R0 = tmp & 255; 1645 } 1646 SrcPtr[0] = R0; 1647 SrcPtr[-pitch] = L0; 1648 } 1649 } 1650 1651 pel ++; 1652 SrcPtr ++; // Increment to next set of pixel 1653 1654 } /* end of: if((Strng = Strength[pel >> 2])) */ 1655 else 1656 { 1657 pel += 3; 1658 SrcPtr += 2; 1659 } 1660 1661 } /* end of: for(pel=0; pel<16; pel++) */ 1662 } 1663 1664 1665 1666 1667
