Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2015 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | */ |
| 20 | /**************************************************************************** */ |
| 21 | /* */ |
| 22 | /* File Name : ih264_deblk_edge_filters.c */ |
| 23 | /* */ |
| 24 | /* Description : Contains function definitions for deblocking */ |
| 25 | /* */ |
| 26 | /* List of Functions : ih264_deblk_luma_vert_bs4() */ |
| 27 | /* ih264_deblk_luma_horz_bs4() */ |
| 28 | /* ih264_deblk_luma_vert_bslt4() */ |
| 29 | /* ih264_deblk_luma_horz_bslt4() */ |
| 30 | /* ih264_deblk_luma_vert_bs4_mbaff() */ |
| 31 | /* ih264_deblk_luma_vert_bslt4_mbaff() */ |
| 32 | /* ih264_deblk_chroma_vert_bs4_bp() */ |
| 33 | /* ih264_deblk_chroma_horz_bs4_bp() */ |
| 34 | /* ih264_deblk_chroma_vert_bslt4_bp() */ |
| 35 | /* ih264_deblk_chroma_horz_bslt4_bp() */ |
| 36 | /* ih264_deblk_chroma_vert_bs4_mbaff_bp() */ |
| 37 | /* ih264_deblk_chroma_vert_bslt4_mbaff_bp() */ |
| 38 | /* ih264_deblk_chroma_vert_bs4() */ |
| 39 | /* ih264_deblk_chroma_horz_bs4() */ |
| 40 | /* ih264_deblk_chroma_vert_bslt4() */ |
| 41 | /* ih264_deblk_chroma_horz_bslt4() */ |
| 42 | /* ih264_deblk_chroma_vert_bs4_mbaff() */ |
| 43 | /* ih264_deblk_chroma_vert_bslt4_mbaff() */ |
| 44 | /* */ |
| 45 | /* Issues / Problems : None */ |
| 46 | /* */ |
| 47 | /* Revision History : */ |
| 48 | /* */ |
| 49 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 50 | /* 28 11 2013 Ittiam Draft */ |
| 51 | /* 29 12 2014 Kaushik Added double-call vertical */ |
| 52 | /* Senthoor deblocking and high profile */ |
| 53 | /* deblocking functions */ |
| 54 | /* */ |
| 55 | /******************************************************************************/ |
| 56 | |
| 57 | /*****************************************************************************/ |
| 58 | /* File Includes */ |
| 59 | /*****************************************************************************/ |
| 60 | |
| 61 | /* System include files */ |
| 62 | #include <stdio.h> |
| 63 | |
| 64 | /* User include files */ |
| 65 | #include "ih264_typedefs.h" |
| 66 | #include "ih264_platform_macros.h" |
| 67 | #include "ih264_deblk_edge_filters.h" |
| 68 | #include "ih264_macros.h" |
| 69 | |
| 70 | /*****************************************************************************/ |
| 71 | /* Function Definitions */ |
| 72 | /*****************************************************************************/ |
| 73 | |
| 74 | /*****************************************************************************/ |
| 75 | /* */ |
| 76 | /* Function Name : ih264_deblk_luma_vert_bs4() */ |
| 77 | /* */ |
| 78 | /* Description : This function performs filtering of a luma block */ |
| 79 | /* vertical edge when the boundary strength is set to 4. */ |
| 80 | /* */ |
| 81 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 82 | /* src_strd - source stride */ |
| 83 | /* alpha - alpha value for the boundary */ |
| 84 | /* beta - beta value for the boundary */ |
| 85 | /* */ |
| 86 | /* Globals : None */ |
| 87 | /* */ |
| 88 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 89 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 90 | /* ITU T Rec H.264. */ |
| 91 | /* */ |
| 92 | /* Outputs : None */ |
| 93 | /* */ |
| 94 | /* Returns : None */ |
| 95 | /* */ |
| 96 | /* Issues : None */ |
| 97 | /* */ |
| 98 | /* Revision History: */ |
| 99 | /* */ |
| 100 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 101 | /* 28 11 2013 Ittiam Draft */ |
| 102 | /* */ |
| 103 | /*****************************************************************************/ |
| 104 | void ih264_deblk_luma_vert_bs4(UWORD8 *pu1_src, |
| 105 | WORD32 src_strd, |
| 106 | WORD32 alpha, |
| 107 | WORD32 beta) |
| 108 | { |
| 109 | UWORD8 p3, p2, p1, p0, q0, q1, q2, q3; |
| 110 | WORD32 pos_p3, pos_p2, pos_p1, pos_p0; |
| 111 | WORD32 pos_q0, pos_q1, pos_q2,pos_q3; |
| 112 | UWORD8 a_p, a_q; /* threshold variables */ |
| 113 | WORD32 blk_strd = src_strd << 2; /* block_increment = src_strd * 4 */ |
| 114 | UWORD8 *pu1_src_temp; |
| 115 | WORD8 i = 0, edge; |
| 116 | |
| 117 | pos_q0 = 0; |
| 118 | pos_q1 = 1; |
| 119 | pos_q2 = 2; |
| 120 | pos_q3 = 3; |
| 121 | pos_p0 = -1; |
| 122 | pos_p1 = -2; |
| 123 | pos_p2 = -3; |
| 124 | pos_p3 = -4; |
| 125 | |
| 126 | for(edge = 0; edge < 4; edge++, pu1_src += blk_strd) |
| 127 | { |
| 128 | pu1_src_temp = pu1_src; |
| 129 | for(i = 0; i < 4; ++i, pu1_src_temp += src_strd) |
| 130 | { |
| 131 | q0 = pu1_src_temp[pos_q0]; |
| 132 | q1 = pu1_src_temp[pos_q1]; |
| 133 | p0 = pu1_src_temp[pos_p0]; |
| 134 | p1 = pu1_src_temp[pos_p1]; |
| 135 | |
| 136 | /* Filter Decision */ |
| 137 | if((ABS(p0 - q0) >= alpha) || |
| 138 | (ABS(q1 - q0) >= beta) || |
| 139 | (ABS(p1 - p0) >= beta)) |
| 140 | continue; |
| 141 | |
| 142 | p2 = pu1_src_temp[pos_p2]; |
| 143 | p3 = pu1_src_temp[pos_p3]; |
| 144 | q2 = pu1_src_temp[pos_q2]; |
| 145 | q3 = pu1_src_temp[pos_q3]; |
| 146 | |
| 147 | if(ABS(p0 - q0) < ((alpha >> 2) + 2)) |
| 148 | { |
| 149 | /* Threshold Variables */ |
| 150 | a_p = (UWORD8)ABS(p2 - p0); |
| 151 | a_q = (UWORD8)ABS(q2 - q0); |
| 152 | |
| 153 | if(a_p < beta) |
| 154 | { |
| 155 | /* p0', p1', p2' */ |
| 156 | pu1_src_temp[pos_p0] = ((p2 + X2(p1) + X2(p0) + X2(q0) + q1 |
| 157 | + 4) >> 3); |
| 158 | pu1_src_temp[pos_p1] = ((p2 + p1 + p0 + q0 + 2) >> 2); |
| 159 | pu1_src_temp[pos_p2] = |
| 160 | ((X2(p3) + X3(p2) + p1 + p0 + q0 |
| 161 | + 4) >> 3); |
| 162 | } |
| 163 | else |
| 164 | { |
| 165 | /* p0'*/ |
| 166 | pu1_src_temp[pos_p0] = ((X2(p1) + p0 + q1 + 2) >> 2); |
| 167 | } |
| 168 | |
| 169 | if(a_q < beta) |
| 170 | { |
| 171 | /* q0', q1', q2' */ |
| 172 | pu1_src_temp[pos_q0] = (p1 + X2(p0) + X2(q0) + X2(q1) + q2 |
| 173 | + 4) >> 3; |
| 174 | pu1_src_temp[pos_q1] = (p0 + q0 + q1 + q2 + 2) >> 2; |
| 175 | pu1_src_temp[pos_q2] = (X2(q3) + X3(q2) + q1 + q0 + p0 + 4) |
| 176 | >> 3; |
| 177 | } |
| 178 | else |
| 179 | { |
| 180 | /* q0'*/ |
| 181 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 182 | } |
| 183 | } |
| 184 | else |
| 185 | { |
| 186 | /* p0', q0'*/ |
| 187 | pu1_src_temp[pos_p0] = ((X2(p1) + p0 + q1 + 2) >> 2); |
| 188 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 189 | } |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | /*****************************************************************************/ |
| 195 | /* */ |
| 196 | /* Function Name : ih264_deblk_luma_horz_bs4() */ |
| 197 | /* */ |
| 198 | /* Description : This function performs filtering of a luma block */ |
| 199 | /* horizontal edge when the boundary strength is set to 4. */ |
| 200 | /* */ |
| 201 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 202 | /* src_strd - source stride */ |
| 203 | /* alpha - alpha value for the boundary */ |
| 204 | /* beta - beta value for the boundary */ |
| 205 | /* */ |
| 206 | /* Globals : None */ |
| 207 | /* */ |
| 208 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 209 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 210 | /* ITU T Rec H.264. */ |
| 211 | /* */ |
| 212 | /* Outputs : None */ |
| 213 | /* */ |
| 214 | /* Returns : None */ |
| 215 | /* */ |
| 216 | /* Issues : None */ |
| 217 | /* */ |
| 218 | /* Revision History: */ |
| 219 | /* */ |
| 220 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 221 | /* 28 11 2013 Ittiam Draft */ |
| 222 | /* */ |
| 223 | /*****************************************************************************/ |
| 224 | void ih264_deblk_luma_horz_bs4(UWORD8 *pu1_src, |
| 225 | WORD32 src_strd, |
| 226 | WORD32 alpha, |
| 227 | WORD32 beta) |
| 228 | { |
| 229 | UWORD8 p3, p2, p1, p0, q0, q1, q2, q3; |
| 230 | WORD32 pos_p3, pos_p2, pos_p1, pos_p0, pos_q0, pos_q1, |
| 231 | pos_q2, pos_q3; |
| 232 | UWORD8 a_p, a_q; /* threshold variables */ |
| 233 | UWORD8 *pu1_p3; /* pointer to the src sample p3 */ |
| 234 | UWORD8 *pu1_p3_temp; |
| 235 | UWORD8 *pu1_src_temp; |
| 236 | WORD8 i = 0, edge; |
| 237 | |
| 238 | pu1_p3 = pu1_src - (src_strd << 2); |
| 239 | pos_q0 = 0; |
| 240 | pos_q1 = src_strd; |
| 241 | pos_q2 = X2(src_strd); |
| 242 | pos_q3 = X3(src_strd); |
| 243 | pos_p0 = X3(src_strd); |
| 244 | pos_p1 = X2(src_strd); |
| 245 | pos_p2 = src_strd; |
| 246 | pos_p3 = 0; |
| 247 | |
| 248 | for(edge = 0; edge < 4; edge++, pu1_src += 4, pu1_p3 += 4) |
| 249 | { |
| 250 | pu1_src_temp = pu1_src; |
| 251 | pu1_p3_temp = pu1_p3; |
| 252 | for(i = 0; i < 4; ++i, pu1_src_temp++, pu1_p3_temp++) |
| 253 | { |
| 254 | q0 = pu1_src_temp[pos_q0]; |
| 255 | q1 = pu1_src_temp[pos_q1]; |
| 256 | p0 = pu1_p3_temp[pos_p0]; |
| 257 | p1 = pu1_p3_temp[pos_p1]; |
| 258 | |
| 259 | /* Filter Decision */ |
| 260 | if((ABS(p0 - q0) >= alpha) || |
| 261 | (ABS(q1 - q0) >= beta) || |
| 262 | (ABS(p1 - p0) >= beta)) |
| 263 | continue; |
| 264 | |
| 265 | p2 = pu1_p3_temp[pos_p2]; |
| 266 | p3 = pu1_p3_temp[pos_p3]; |
| 267 | q2 = pu1_src_temp[pos_q2]; |
| 268 | q3 = pu1_src_temp[pos_q3]; |
| 269 | |
| 270 | if(ABS(p0 - q0) < ((alpha >> 2) + 2)) |
| 271 | { |
| 272 | /* Threshold Variables */ |
| 273 | a_p = ABS(p2 - p0); |
| 274 | a_q = ABS(q2 - q0); |
| 275 | |
| 276 | if((a_p < beta)) |
| 277 | { |
| 278 | /* p0', p1', p2' */ |
| 279 | pu1_p3_temp[pos_p0] = (p2 + X2(p1) + X2(p0) + X2(q0) + q1 |
| 280 | + 4) >> 3; |
| 281 | pu1_p3_temp[pos_p1] = (p2 + p1 + p0 + q0 + 2) >> 2; |
| 282 | pu1_p3_temp[pos_p2] = |
| 283 | (X2(p3) + X3(p2) + p1 + p0 + q0 |
| 284 | + 4) >> 3; |
| 285 | } |
| 286 | else |
| 287 | { |
| 288 | /* p0'*/ |
| 289 | pu1_p3_temp[pos_p0] = (X2(p1) + p0 + q1 + 2) >> 2; |
| 290 | } |
| 291 | |
| 292 | if(a_q < beta) |
| 293 | { |
| 294 | /* q0', q1', q2' */ |
| 295 | pu1_src_temp[pos_q0] = (p1 + X2(p0) + X2(q0) + X2(q1) |
| 296 | + q2 + 4) >> 3; |
| 297 | pu1_src_temp[pos_q1] = (p0 + q0 + q1 + q2 + 2) >> 2; |
| 298 | pu1_src_temp[pos_q2] = (X2(q3) + X3(q2) + q1 + q0 + p0 |
| 299 | + 4) >> 3; |
| 300 | } |
| 301 | else |
| 302 | { |
| 303 | /* q0'*/ |
| 304 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 305 | } |
| 306 | } |
| 307 | else |
| 308 | { |
| 309 | /* p0', q0'*/ |
| 310 | pu1_p3_temp[pos_p0] = (X2(p1) + p0 + q1 + 2) >> 2; |
| 311 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | /*****************************************************************************/ |
| 318 | /* */ |
| 319 | /* Function Name : ih264_deblk_chroma_vert_bs4_bp() */ |
| 320 | /* */ |
| 321 | /* Description : This function performs filtering of a chroma block */ |
| 322 | /* vertical edge when the boundary strength is set to 4. */ |
| 323 | /* */ |
| 324 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 325 | /* src_strd - source stride */ |
| 326 | /* alpha - alpha value for the boundary */ |
| 327 | /* beta - beta value for the boundary */ |
| 328 | /* */ |
| 329 | /* Globals : None */ |
| 330 | /* */ |
| 331 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 332 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 333 | /* ITU T Rec H.264. */ |
| 334 | /* */ |
| 335 | /* Outputs : None */ |
| 336 | /* */ |
| 337 | /* Returns : None */ |
| 338 | /* */ |
| 339 | /* Issues : None */ |
| 340 | /* */ |
| 341 | /* Revision History: */ |
| 342 | /* */ |
| 343 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 344 | /* 28 11 2013 Ittiam Draft */ |
| 345 | /* */ |
| 346 | /*****************************************************************************/ |
| 347 | void ih264_deblk_chroma_vert_bs4_bp(UWORD8 *pu1_src, |
| 348 | WORD32 src_strd, |
| 349 | WORD32 alpha, |
| 350 | WORD32 beta) |
| 351 | { |
| 352 | UWORD8 *pu1_src_u = pu1_src; /* pointer to the src sample q0 of U */ |
| 353 | UWORD8 *pu1_src_v = pu1_src + 1; /* pointer to the src sample q0 of V */ |
| 354 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 355 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * 2 */ |
| 356 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 357 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 358 | WORD8 i = 0, edge; |
| 359 | |
| 360 | pos_q0 = 0; |
| 361 | pos_q1 = 2; |
| 362 | pos_p0 = -2; |
| 363 | pos_p1 = -4; |
| 364 | |
| 365 | for(edge = 0; edge < 4; |
| 366 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 367 | { |
| 368 | pu1_src_temp_u = pu1_src_u; |
| 369 | pu1_src_temp_v = pu1_src_v; |
| 370 | for(i = 0; i < 2; ++i, pu1_src_temp_u += src_strd, pu1_src_temp_v += |
| 371 | src_strd) |
| 372 | { |
| 373 | q0_u = pu1_src_temp_u[pos_q0]; |
| 374 | q1_u = pu1_src_temp_u[pos_q1]; |
| 375 | p0_u = pu1_src_temp_u[pos_p0]; |
| 376 | p1_u = pu1_src_temp_u[pos_p1]; |
| 377 | q0_v = pu1_src_temp_v[pos_q0]; |
| 378 | q1_v = pu1_src_temp_v[pos_q1]; |
| 379 | p0_v = pu1_src_temp_v[pos_p0]; |
| 380 | p1_v = pu1_src_temp_v[pos_p1]; |
| 381 | |
| 382 | /* Filter Decision */ |
| 383 | if((ABS(p0_u - q0_u) < alpha) && |
| 384 | (ABS(q1_u - q0_u) < beta) && |
| 385 | (ABS(p1_u - p0_u) < beta)) |
| 386 | { |
| 387 | /* p0' */ |
| 388 | pu1_src_temp_u[pos_p0] = ((X2(p1_u) + p0_u + q1_u + 2) >> 2); |
| 389 | /* q0' */ |
| 390 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 391 | } |
| 392 | |
| 393 | /* Filter Decision */ |
| 394 | if((ABS(p0_v - q0_v) < alpha) && |
| 395 | (ABS(q1_v - q0_v) < beta) && |
| 396 | (ABS(p1_v - p0_v) < beta)) |
| 397 | { |
| 398 | /* p0' */ |
| 399 | pu1_src_temp_v[pos_p0] = ((X2(p1_v) + p0_v + q1_v + 2) >> 2); |
| 400 | /* q0' */ |
| 401 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 402 | } |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | /*****************************************************************************/ |
| 408 | /* */ |
| 409 | /* Function Name : ih264_deblk_chroma_horz_bs4_bp() */ |
| 410 | /* */ |
| 411 | /* Description : This function performs filtering of a chroma block */ |
| 412 | /* horizontal edge when the boundary strength is set to 4. */ |
| 413 | /* */ |
| 414 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 415 | /* src_strd - source stride */ |
| 416 | /* alpha - alpha value for the boundary */ |
| 417 | /* beta - beta value for the boundary */ |
| 418 | /* */ |
| 419 | /* Globals : None */ |
| 420 | /* */ |
| 421 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 422 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 423 | /* ITU T Rec H.264. */ |
| 424 | /* */ |
| 425 | /* Outputs : None */ |
| 426 | /* */ |
| 427 | /* Returns : None */ |
| 428 | /* */ |
| 429 | /* Issues : None */ |
| 430 | /* */ |
| 431 | /* Revision History: */ |
| 432 | /* */ |
| 433 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 434 | /* 28 11 2013 Ittiam Draft */ |
| 435 | /* */ |
| 436 | /*****************************************************************************/ |
| 437 | void ih264_deblk_chroma_horz_bs4_bp(UWORD8 *pu1_src, |
| 438 | WORD32 src_strd, |
| 439 | WORD32 alpha, |
| 440 | WORD32 beta) |
| 441 | { |
| 442 | UWORD8 *pu1_src_u = pu1_src; /* pointer to the src sample q0 of U */ |
| 443 | UWORD8 *pu1_src_v = pu1_src + 1; /* pointer to the src sample q0 of V */ |
| 444 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 445 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 446 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 447 | UWORD8 *pu1_p1_u; /* pointer to the src sample p1 of U */ |
| 448 | UWORD8 *pu1_p1_v; /* pointer to the src sample p1 of U */ |
| 449 | UWORD8 *pu1_p1_temp_u, *pu1_p1_temp_v; |
| 450 | WORD8 i = 0, edge; |
| 451 | |
| 452 | pu1_p1_u = pu1_src_u - (src_strd << 1); |
| 453 | pu1_p1_v = pu1_src_v - (src_strd << 1); |
| 454 | pos_q0 = 0; |
| 455 | pos_q1 = src_strd; |
| 456 | pos_p0 = src_strd; |
| 457 | pos_p1 = 0; |
| 458 | |
| 459 | for(edge = 0; edge < 4; edge++, pu1_src_u += 4, pu1_p1_u += 4, |
| 460 | pu1_src_v += 4, pu1_p1_v += 4) |
| 461 | { |
| 462 | pu1_src_temp_u = pu1_src_u; |
| 463 | pu1_p1_temp_u = pu1_p1_u; |
| 464 | pu1_src_temp_v = pu1_src_v; |
| 465 | pu1_p1_temp_v = pu1_p1_v; |
| 466 | for(i = 0; i < 2; ++i, pu1_src_temp_u += 2, pu1_p1_temp_u += 2, |
| 467 | pu1_src_temp_v += 2, pu1_p1_temp_v += 2) |
| 468 | { |
| 469 | q0_u = pu1_src_temp_u[pos_q0]; |
| 470 | q1_u = pu1_src_temp_u[pos_q1]; |
| 471 | p0_u = pu1_p1_temp_u[pos_p0]; |
| 472 | p1_u = pu1_p1_temp_u[pos_p1]; |
| 473 | |
| 474 | q0_v = pu1_src_temp_v[pos_q0]; |
| 475 | q1_v = pu1_src_temp_v[pos_q1]; |
| 476 | p0_v = pu1_p1_temp_v[pos_p0]; |
| 477 | p1_v = pu1_p1_temp_v[pos_p1]; |
| 478 | |
| 479 | /* Filter Decision */ |
| 480 | if((ABS(p0_u - q0_u) < alpha) && |
| 481 | (ABS(q1_u - q0_u) < beta) && |
| 482 | (ABS(p1_u - p0_u) < beta)) |
| 483 | { |
| 484 | /* p0' */ |
| 485 | pu1_p1_temp_u[pos_p0] = (X2(p1_u) + p0_u + q1_u + 2) >> 2; |
| 486 | /* q0' */ |
| 487 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 488 | } |
| 489 | |
| 490 | /* Filter Decision */ |
| 491 | if((ABS(p0_v - q0_v) < alpha) && |
| 492 | (ABS(q1_v - q0_v) < beta) && |
| 493 | (ABS(p1_v - p0_v) < beta)) |
| 494 | { |
| 495 | /* p0' */ |
| 496 | pu1_p1_temp_v[pos_p0] = (X2(p1_v) + p0_v + q1_v + 2) >> 2; |
| 497 | /* q0' */ |
| 498 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 499 | } |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | /*****************************************************************************/ |
| 505 | /* */ |
| 506 | /* Function Name : ih264_deblk_luma_vert_bslt4() */ |
| 507 | /* */ |
| 508 | /* Description : This function performs filtering of a luma block */ |
| 509 | /* vertical edge when the boundary strength is less than 4. */ |
| 510 | /* */ |
| 511 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 512 | /* src_strd - source stride */ |
| 513 | /* alpha - alpha value for the boundary */ |
| 514 | /* beta - beta value for the boundary */ |
| 515 | /* u4_bs - packed Boundary strength array */ |
| 516 | /* pu1_cliptab - tc0_table */ |
| 517 | /* */ |
| 518 | /* Globals : None */ |
| 519 | /* */ |
| 520 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 521 | /* title "Filtering process for edges for bS less than 4" */ |
| 522 | /* in ITU T Rec H.264. */ |
| 523 | /* */ |
| 524 | /* Outputs : None */ |
| 525 | /* */ |
| 526 | /* Returns : None */ |
| 527 | /* */ |
| 528 | /* Issues : None */ |
| 529 | /* */ |
| 530 | /* Revision History: */ |
| 531 | /* */ |
| 532 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 533 | /* 28 11 2013 Ittiam Draft */ |
| 534 | /* */ |
| 535 | /*****************************************************************************/ |
| 536 | void ih264_deblk_luma_vert_bslt4(UWORD8 *pu1_src, |
| 537 | WORD32 src_strd, |
| 538 | WORD32 alpha, |
| 539 | WORD32 beta, |
| 540 | UWORD32 u4_bs, |
| 541 | const UWORD8 *pu1_cliptab) |
| 542 | { |
| 543 | WORD8 i = 0, edge; |
| 544 | UWORD8 p2, p1, p0, q0, q1, q2; |
| 545 | WORD32 pos_p2, pos_p1, pos_p0, pos_q0, pos_q1, pos_q2; |
| 546 | UWORD8 a_p, a_q; /* threshold variables */ |
| 547 | WORD32 blk_strd = src_strd << 2; /* block_increment = src_strd * 4 */ |
| 548 | UWORD8 *pu1_src_temp; |
| 549 | WORD8 delta; |
| 550 | WORD8 tc; |
| 551 | WORD16 val; |
| 552 | UWORD8 tc0, u1_bs; |
| 553 | |
| 554 | pos_q0 = 0; |
| 555 | pos_q1 = 1; |
| 556 | pos_q2 = 2; |
| 557 | pos_p0 = -1; |
| 558 | pos_p1 = -2; |
| 559 | pos_p2 = -3; |
| 560 | |
| 561 | for(edge = 0; edge < 4; edge++, pu1_src += blk_strd) |
| 562 | { |
| 563 | pu1_src_temp = pu1_src; |
| 564 | /* Filter Decision */ |
| 565 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 566 | if(!u1_bs) |
| 567 | continue; |
| 568 | /* tc0 */ |
| 569 | tc0 = pu1_cliptab[u1_bs]; |
| 570 | for(i = 0; i < 4; ++i, pu1_src_temp += src_strd) |
| 571 | { |
| 572 | q0 = pu1_src_temp[pos_q0]; |
| 573 | q1 = pu1_src_temp[pos_q1]; |
| 574 | p0 = pu1_src_temp[pos_p0]; |
| 575 | p1 = pu1_src_temp[pos_p1]; |
| 576 | |
| 577 | /* Filter Decision */ |
| 578 | if((ABS(p0 - q0) >= alpha) || |
| 579 | (ABS(q1 - q0) >= beta) || |
| 580 | (ABS(p1 - p0) >= beta)) |
| 581 | continue; |
| 582 | |
| 583 | q2 = pu1_src_temp[pos_q2]; |
| 584 | p2 = pu1_src_temp[pos_p2]; |
| 585 | |
| 586 | a_p = ABS(p2 - p0); |
| 587 | a_q = ABS(q2 - q0); |
| 588 | |
| 589 | /* tc */ |
| 590 | tc = tc0 + (a_p < beta) + (a_q < beta); |
| 591 | |
| 592 | val = ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3); |
| 593 | delta = CLIP3(-tc, tc, val); |
| 594 | |
| 595 | /* p0' */ |
| 596 | val = p0 + delta; |
| 597 | pu1_src_temp[pos_p0] = CLIP_U8(val); |
| 598 | /* q0' */ |
| 599 | val = q0 - delta; |
| 600 | pu1_src_temp[pos_q0] = CLIP_U8(val); |
| 601 | |
| 602 | /* Luma only */ |
| 603 | if(a_p < beta) |
| 604 | { |
| 605 | /* p1' */ |
| 606 | val = ((p2 + ((p0 + q0 + 1) >> 1) - (p1 << 1)) >> 1); |
| 607 | pu1_src_temp[pos_p1] += CLIP3(-tc0, tc0, val); |
| 608 | } |
| 609 | |
| 610 | if(a_q < beta) |
| 611 | { |
| 612 | /* q1' */ |
| 613 | val = ((q2 + ((p0 + q0 + 1) >> 1) - (q1 << 1)) >> 1); |
| 614 | pu1_src_temp[pos_q1] += CLIP3(-tc0, tc0, val); |
| 615 | } |
| 616 | } |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | /*****************************************************************************/ |
| 621 | /* */ |
| 622 | /* Function Name : ih264_deblk_chroma_vert_bslt4_bp() */ |
| 623 | /* */ |
| 624 | /* Description : This function performs filtering of a chroma block */ |
| 625 | /* vertical edge when the boundary strength is less than 4. */ |
| 626 | /* */ |
| 627 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 628 | /* src_strd - source stride */ |
| 629 | /* alpha - alpha value for the boundary */ |
| 630 | /* beta - beta value for the boundary */ |
| 631 | /* u4_bs - packed Boundary strength array */ |
| 632 | /* pu1_cliptab - tc0_table */ |
| 633 | /* */ |
| 634 | /* Globals : None */ |
| 635 | /* */ |
| 636 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 637 | /* title "Filtering process for edges for bS less than 4" */ |
| 638 | /* in ITU T Rec H.264. */ |
| 639 | /* */ |
| 640 | /* Outputs : None */ |
| 641 | /* */ |
| 642 | /* Returns : None */ |
| 643 | /* */ |
| 644 | /* Issues : None */ |
| 645 | /* */ |
| 646 | /* Revision History: */ |
| 647 | /* */ |
| 648 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 649 | /* 28 11 2013 Ittiam Draft */ |
| 650 | /* */ |
| 651 | /*****************************************************************************/ |
| 652 | void ih264_deblk_chroma_vert_bslt4_bp(UWORD8 *pu1_src, |
| 653 | WORD32 src_strd, |
| 654 | WORD32 alpha, |
| 655 | WORD32 beta, |
| 656 | UWORD32 u4_bs, |
| 657 | const UWORD8 *pu1_cliptab) |
| 658 | { |
| 659 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 660 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 661 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 662 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * (4 >> 1)*/ |
| 663 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 664 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 665 | WORD8 i = 0, edge; |
| 666 | WORD8 delta; |
| 667 | WORD8 tc; |
| 668 | WORD16 val; |
| 669 | UWORD8 tc0, u1_bs; |
| 670 | |
| 671 | pos_q0 = 0; |
| 672 | pos_q1 = 2; |
| 673 | pos_p0 = -2; |
| 674 | pos_p1 = -4; |
| 675 | |
| 676 | for(edge = 0; edge < 4; |
| 677 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 678 | { |
| 679 | pu1_src_temp_u = pu1_src_u; |
| 680 | pu1_src_temp_v = pu1_src_v; |
| 681 | /* Filter Decision */ |
| 682 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 683 | if(!u1_bs) |
| 684 | continue; |
| 685 | /* tc0 */ |
| 686 | tc0 = pu1_cliptab[u1_bs]; |
| 687 | tc = tc0 + 1; |
| 688 | for(i = 0; i < 2; ++i, pu1_src_temp_u += src_strd, pu1_src_temp_v += |
| 689 | src_strd) |
| 690 | { |
| 691 | q0_u = pu1_src_temp_u[pos_q0]; |
| 692 | q1_u = pu1_src_temp_u[pos_q1]; |
| 693 | p0_u = pu1_src_temp_u[pos_p0]; |
| 694 | p1_u = pu1_src_temp_u[pos_p1]; |
| 695 | |
| 696 | q0_v = pu1_src_temp_v[pos_q0]; |
| 697 | q1_v = pu1_src_temp_v[pos_q1]; |
| 698 | p0_v = pu1_src_temp_v[pos_p0]; |
| 699 | p1_v = pu1_src_temp_v[pos_p1]; |
| 700 | |
| 701 | /* Filter Decision */ |
| 702 | if((ABS(p0_u - q0_u) < alpha) && |
| 703 | (ABS(q1_u - q0_u) < beta) && |
| 704 | (ABS(p1_u - p0_u) < beta)) |
| 705 | { |
| 706 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 707 | delta = CLIP3(-tc, tc, val); |
| 708 | /* p0' */ |
| 709 | val = p0_u + delta; |
| 710 | pu1_src_temp_u[pos_p0] = CLIP_U8(val); |
| 711 | /* q0' */ |
| 712 | val = q0_u - delta; |
| 713 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 714 | } |
| 715 | |
| 716 | /* Filter Decision */ |
| 717 | if((ABS(p0_v - q0_v) < alpha) && |
| 718 | (ABS(q1_v - q0_v) < beta) && |
| 719 | (ABS(p1_v - p0_v) < beta)) |
| 720 | { |
| 721 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 722 | delta = CLIP3(-tc, tc, val); |
| 723 | /* p0' */ |
| 724 | val = p0_v + delta; |
| 725 | pu1_src_temp_v[pos_p0] = CLIP_U8(val); |
| 726 | /* q0' */ |
| 727 | val = q0_v - delta; |
| 728 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 729 | } |
| 730 | } |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | /*****************************************************************************/ |
| 735 | /* */ |
| 736 | /* Function Name : ih264_deblk_luma_horz_bslt4() */ |
| 737 | /* */ |
| 738 | /* Description : This function performs filtering of a luma block */ |
| 739 | /* horizontal edge when boundary strength is less than 4. */ |
| 740 | /* */ |
| 741 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 742 | /* src_strd - source stride */ |
| 743 | /* alpha - alpha value for the boundary */ |
| 744 | /* beta - beta value for the boundary */ |
| 745 | /* u4_bs - packed Boundary strength array */ |
| 746 | /* pu1_cliptab - tc0_table */ |
| 747 | /* */ |
| 748 | /* Globals : None */ |
| 749 | /* */ |
| 750 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 751 | /* title "Filtering process for edges for bS less than 4" */ |
| 752 | /* in ITU T Rec H.264. */ |
| 753 | /* */ |
| 754 | /* Outputs : None */ |
| 755 | /* */ |
| 756 | /* Returns : None */ |
| 757 | /* */ |
| 758 | /* Issues : None */ |
| 759 | /* */ |
| 760 | /* Revision History: */ |
| 761 | /* */ |
| 762 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 763 | /* 28 11 2013 Ittiam Draft */ |
| 764 | /* */ |
| 765 | /*****************************************************************************/ |
| 766 | void ih264_deblk_luma_horz_bslt4(UWORD8 *pu1_src, |
| 767 | WORD32 src_strd, |
| 768 | WORD32 alpha, |
| 769 | WORD32 beta, |
| 770 | UWORD32 u4_bs, |
| 771 | const UWORD8 *pu1_cliptab) |
| 772 | { |
| 773 | UWORD8 p2, p1, p0, q0, q1, q2; |
| 774 | WORD32 pos_p2, pos_p1, pos_p0, pos_q0, pos_q1, pos_q2; |
| 775 | UWORD8 a_p, a_q; /* Threshold variables */ |
| 776 | UWORD8 *pu1_p2; /* Pointer to the src sample p2 */ |
| 777 | UWORD8 *pu1_p2_temp; |
| 778 | UWORD8 *pu1_src_temp; |
| 779 | WORD8 i = 0, edge; |
| 780 | WORD8 delta; |
| 781 | WORD8 tc; |
| 782 | WORD16 val; |
| 783 | UWORD8 tc0, u1_bs; |
| 784 | |
| 785 | pu1_p2 = pu1_src - (src_strd << 2); |
| 786 | pos_q0 = 0; |
| 787 | pos_q1 = src_strd; |
| 788 | pos_q2 = X2(src_strd); |
| 789 | pos_p0 = X3(src_strd); |
| 790 | pos_p1 = X2(src_strd); |
| 791 | pos_p2 = src_strd; |
| 792 | |
| 793 | for(edge = 0; edge < 4; edge++, pu1_src += 4, pu1_p2 += 4) |
| 794 | { |
| 795 | pu1_src_temp = pu1_src; |
| 796 | pu1_p2_temp = pu1_p2; |
| 797 | |
| 798 | /* Filter Decision */ |
| 799 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 800 | if(!u1_bs) |
| 801 | continue; |
| 802 | /* tc0 */ |
| 803 | tc0 = pu1_cliptab[u1_bs]; |
| 804 | |
| 805 | for(i = 0; i < 4; ++i, pu1_src_temp++, pu1_p2_temp++) |
| 806 | { |
| 807 | q0 = pu1_src_temp[pos_q0]; |
| 808 | q1 = pu1_src_temp[pos_q1]; |
| 809 | p0 = pu1_p2_temp[pos_p0]; |
| 810 | p1 = pu1_p2_temp[pos_p1]; |
| 811 | |
| 812 | /* Filter Decision */ |
| 813 | if((ABS(p0 - q0) >= alpha) || |
| 814 | (ABS(q1 - q0) >= beta) || |
| 815 | (ABS(p1 - p0) >= beta)) |
| 816 | continue; |
| 817 | |
| 818 | q2 = pu1_src_temp[pos_q2]; |
| 819 | p2 = pu1_p2_temp[pos_p2]; |
| 820 | |
| 821 | a_p = ABS(p2 - p0); |
| 822 | a_q = ABS(q2 - q0); |
| 823 | |
| 824 | /* tc */ |
| 825 | tc = tc0 + (a_p < beta) + (a_q < beta); |
| 826 | val = ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3); |
| 827 | delta = CLIP3(-tc, tc, val); |
| 828 | /* p0' */ |
| 829 | val = p0 + delta; |
| 830 | pu1_p2_temp[pos_p0] = CLIP_U8(val); |
| 831 | /* q0' */ |
| 832 | val = q0 - delta; |
| 833 | pu1_src_temp[pos_q0] = CLIP_U8(val); |
| 834 | |
| 835 | /* Luma */ |
| 836 | if(a_p < beta) |
| 837 | { |
| 838 | /* p1' */ |
| 839 | val = ((p2 + ((p0 + q0 + 1) >> 1) - (p1 << 1)) >> 1); |
| 840 | pu1_p2_temp[pos_p1] += CLIP3(-tc0, tc0, val); |
| 841 | } |
| 842 | |
| 843 | if(a_q < beta) |
| 844 | { |
| 845 | /* q1' */ |
| 846 | val = ((q2 + ((p0 + q0 + 1) >> 1) - (q1 << 1)) >> 1); |
| 847 | pu1_src_temp[pos_q1] += CLIP3(-tc0, tc0, val); |
| 848 | } |
| 849 | } |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | /*****************************************************************************/ |
| 854 | /* */ |
| 855 | /* Function Name : ih264_deblk_chroma_horz_bslt4_bp() */ |
| 856 | /* */ |
| 857 | /* Description : This function performs filtering of a chroma block */ |
| 858 | /* horizontal edge when boundary strength is less than 4. */ |
| 859 | /* */ |
| 860 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 861 | /* src_strd - source stride */ |
| 862 | /* alpha - alpha value for the boundary */ |
| 863 | /* beta - beta value for the boundary */ |
| 864 | /* u4_bs - packed Boundary strength array */ |
| 865 | /* pu1_cliptab - tc0_table */ |
| 866 | /* */ |
| 867 | /* Globals : None */ |
| 868 | /* */ |
| 869 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 870 | /* title "Filtering process for edges for bS less than 4" */ |
| 871 | /* in ITU T Rec H.264. */ |
| 872 | /* */ |
| 873 | /* Outputs : None */ |
| 874 | /* */ |
| 875 | /* Returns : None */ |
| 876 | /* */ |
| 877 | /* Issues : None */ |
| 878 | /* */ |
| 879 | /* Revision History: */ |
| 880 | /* */ |
| 881 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 882 | /* 28 11 2013 Ittiam Draft */ |
| 883 | /* */ |
| 884 | /*****************************************************************************/ |
| 885 | void ih264_deblk_chroma_horz_bslt4_bp(UWORD8 *pu1_src, |
| 886 | WORD32 src_strd, |
| 887 | WORD32 alpha, |
| 888 | WORD32 beta, |
| 889 | UWORD32 u4_bs, |
| 890 | const UWORD8 *pu1_cliptab) |
| 891 | { |
| 892 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 893 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 894 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 895 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 896 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 897 | UWORD8 *pu1_p1_u; /* Pointer to the src sample p1 of plane U*/ |
| 898 | UWORD8 *pu1_p1_v; /* Pointer to the src sample p1 of plane V*/ |
| 899 | UWORD8 *pu1_p1_temp_u, *pu1_p1_temp_v; |
| 900 | WORD8 i = 0, edge; |
| 901 | WORD8 delta; |
| 902 | WORD8 tc; |
| 903 | WORD16 val; |
| 904 | UWORD8 u1_bs; |
| 905 | UWORD8 tc0; |
| 906 | |
| 907 | pu1_p1_u = pu1_src_u - (src_strd << 1); |
| 908 | pu1_p1_v = pu1_src_v - (src_strd << 1); |
| 909 | pos_q0 = 0; |
| 910 | pos_q1 = src_strd; |
| 911 | pos_p0 = src_strd; |
| 912 | pos_p1 = 0; |
| 913 | |
| 914 | for(edge = 0; edge < 4; edge++, pu1_src_u += 4, pu1_p1_u += 4, |
| 915 | pu1_src_v += 4, pu1_p1_v += 4) |
| 916 | { |
| 917 | pu1_src_temp_u = pu1_src_u; |
| 918 | pu1_p1_temp_u = pu1_p1_u; |
| 919 | pu1_src_temp_v = pu1_src_v; |
| 920 | pu1_p1_temp_v = pu1_p1_v; |
| 921 | |
| 922 | /* Filter Decision */ |
| 923 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 924 | if(!u1_bs) |
| 925 | continue; |
| 926 | /* tc0 */ |
| 927 | tc0 = pu1_cliptab[u1_bs]; |
| 928 | |
| 929 | for(i = 0; i < 2; ++i, pu1_src_temp_u += 2, pu1_p1_temp_u += 2, |
| 930 | pu1_src_temp_v += 2, pu1_p1_temp_v += 2) |
| 931 | { |
| 932 | q0_u = pu1_src_temp_u[pos_q0]; |
| 933 | q1_u = pu1_src_temp_u[pos_q1]; |
| 934 | p0_u = pu1_p1_temp_u[pos_p0]; |
| 935 | p1_u = pu1_p1_temp_u[pos_p1]; |
| 936 | |
| 937 | q0_v = pu1_src_temp_v[pos_q0]; |
| 938 | q1_v = pu1_src_temp_v[pos_q1]; |
| 939 | p0_v = pu1_p1_temp_v[pos_p0]; |
| 940 | p1_v = pu1_p1_temp_v[pos_p1]; |
| 941 | |
| 942 | /* tc */ |
| 943 | tc = tc0 + 1; |
| 944 | /* Filter Decision */ |
| 945 | if(ABS(p0_u - q0_u) < alpha && ABS(q1_u - q0_u) < beta |
| 946 | && ABS(p1_u - p0_u) < beta) |
| 947 | { |
| 948 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 949 | delta = CLIP3(-tc, tc, val); |
| 950 | /* p0' */ |
| 951 | val = p0_u + delta; |
| 952 | pu1_p1_temp_u[pos_p0] = CLIP_U8(val); |
| 953 | /* q0' */ |
| 954 | val = q0_u - delta; |
| 955 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 956 | } |
| 957 | /* Filter Decision */ |
| 958 | if(ABS(p0_v - q0_v) < alpha && ABS(q1_v - q0_v) < beta |
| 959 | && ABS(p1_v - p0_v) < beta) |
| 960 | { |
| 961 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 962 | delta = CLIP3(-tc, tc, val); |
| 963 | /* p0' */ |
| 964 | val = p0_v + delta; |
| 965 | pu1_p1_temp_v[pos_p0] = CLIP_U8(val); |
| 966 | /* q0' */ |
| 967 | val = q0_v - delta; |
| 968 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 969 | } |
| 970 | } |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | /*****************************************************************************/ |
| 975 | /* Function Definitions for vertical edge deblocking for double-call */ |
| 976 | /*****************************************************************************/ |
| 977 | |
| 978 | /*****************************************************************************/ |
| 979 | /* */ |
| 980 | /* Function Name : ih264_deblk_luma_vert_bs4_mbaff() */ |
| 981 | /* */ |
| 982 | /* Description : This function performs filtering of a luma block */ |
| 983 | /* vertical edge when boundary strength is set to 4. */ |
| 984 | /* */ |
| 985 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 986 | /* src_strd - source stride */ |
| 987 | /* alpha - alpha value for the boundary */ |
| 988 | /* beta - beta value for the boundary */ |
| 989 | /* */ |
| 990 | /* Globals : None */ |
| 991 | /* */ |
| 992 | /* Processing : When the function is called twice, this operation is as */ |
| 993 | /* described in Sec. 8.7.2.3 under the title "Filtering */ |
| 994 | /* process for edges for bS equal to 4" in ITU T Rec H.264. */ |
| 995 | /* */ |
| 996 | /* Outputs : None */ |
| 997 | /* */ |
| 998 | /* Returns : None */ |
| 999 | /* */ |
| 1000 | /* Issues : None */ |
| 1001 | /* */ |
| 1002 | /* Revision History: */ |
| 1003 | /* */ |
| 1004 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1005 | /* 29 12 2014 Kaushik Draft */ |
| 1006 | /* Senthoor */ |
| 1007 | /* */ |
| 1008 | /*****************************************************************************/ |
| 1009 | void ih264_deblk_luma_vert_bs4_mbaff(UWORD8 *pu1_src, |
| 1010 | WORD32 src_strd, |
| 1011 | WORD32 alpha, |
| 1012 | WORD32 beta) |
| 1013 | { |
| 1014 | UWORD8 p3, p2, p1, p0, q0, q1, q2, q3; |
| 1015 | WORD32 pos_p3, pos_p2, pos_p1, pos_p0; |
| 1016 | WORD32 pos_q0, pos_q1, pos_q2, pos_q3; |
| 1017 | UWORD8 a_p, a_q; /* threshold variables */ |
| 1018 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * 2 */ |
| 1019 | UWORD8 *pu1_src_temp; |
| 1020 | WORD8 i = 0, edge; |
| 1021 | |
| 1022 | pos_q0 = 0; |
| 1023 | pos_q1 = 1; |
| 1024 | pos_q2 = 2; |
| 1025 | pos_q3 = 3; |
| 1026 | pos_p0 = -1; |
| 1027 | pos_p1 = -2; |
| 1028 | pos_p2 = -3; |
| 1029 | pos_p3 = -4; |
| 1030 | |
| 1031 | for(edge = 0; edge < 4; edge++, pu1_src += blk_strd) |
| 1032 | { |
| 1033 | pu1_src_temp = pu1_src; |
| 1034 | for(i = 0; i < 2; ++i, pu1_src_temp += src_strd) |
| 1035 | { |
| 1036 | q0 = pu1_src_temp[pos_q0]; |
| 1037 | q1 = pu1_src_temp[pos_q1]; |
| 1038 | p0 = pu1_src_temp[pos_p0]; |
| 1039 | p1 = pu1_src_temp[pos_p1]; |
| 1040 | |
| 1041 | /* Filter Decision */ |
| 1042 | if((ABS(p0 - q0) >= alpha) || |
| 1043 | (ABS(q1 - q0) >= beta) || |
| 1044 | (ABS(p1 - p0) >= beta)) |
| 1045 | continue; |
| 1046 | |
| 1047 | p2 = pu1_src_temp[pos_p2]; |
| 1048 | p3 = pu1_src_temp[pos_p3]; |
| 1049 | q2 = pu1_src_temp[pos_q2]; |
| 1050 | q3 = pu1_src_temp[pos_q3]; |
| 1051 | |
| 1052 | if(ABS(p0 - q0) < ((alpha >> 2) + 2)) |
| 1053 | { |
| 1054 | /* Threshold Variables */ |
| 1055 | a_p = (UWORD8)ABS(p2 - p0); |
| 1056 | a_q = (UWORD8)ABS(q2 - q0); |
| 1057 | |
| 1058 | if(a_p < beta) |
| 1059 | { |
| 1060 | /* p0', p1', p2' */ |
| 1061 | pu1_src_temp[pos_p0] = ((p2 + X2(p1) + X2(p0) + X2(q0) + q1 |
| 1062 | + 4) >> 3); |
| 1063 | pu1_src_temp[pos_p1] = ((p2 + p1 + p0 + q0 + 2) >> 2); |
| 1064 | pu1_src_temp[pos_p2] = |
| 1065 | ((X2(p3) + X3(p2) + p1 + p0 + q0 |
| 1066 | + 4) >> 3); |
| 1067 | } |
| 1068 | else |
| 1069 | { |
| 1070 | /* p0'*/ |
| 1071 | pu1_src_temp[pos_p0] = ((X2(p1) + p0 + q1 + 2) >> 2); |
| 1072 | } |
| 1073 | |
| 1074 | if(a_q < beta) |
| 1075 | { |
| 1076 | /* q0', q1', q2' */ |
| 1077 | pu1_src_temp[pos_q0] = (p1 + X2(p0) + X2(q0) + X2(q1) + q2 |
| 1078 | + 4) >> 3; |
| 1079 | pu1_src_temp[pos_q1] = (p0 + q0 + q1 + q2 + 2) >> 2; |
| 1080 | pu1_src_temp[pos_q2] = (X2(q3) + X3(q2) + q1 + q0 + p0 + 4) |
| 1081 | >> 3; |
| 1082 | } |
| 1083 | else |
| 1084 | { |
| 1085 | /* q0'*/ |
| 1086 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 1087 | } |
| 1088 | } |
| 1089 | else |
| 1090 | { |
| 1091 | /* p0', q0'*/ |
| 1092 | pu1_src_temp[pos_p0] = ((X2(p1) + p0 + q1 + 2) >> 2); |
| 1093 | pu1_src_temp[pos_q0] = (X2(q1) + q0 + p1 + 2) >> 2; |
| 1094 | } |
| 1095 | } |
| 1096 | } |
| 1097 | } |
| 1098 | |
| 1099 | /*****************************************************************************/ |
| 1100 | /* */ |
| 1101 | /* Function Name : ih264_deblk_chroma_vert_bs4_mbaff_bp() */ |
| 1102 | /* */ |
| 1103 | /* Description : This function performs filtering of a chroma block */ |
| 1104 | /* vertical edge when boundary strength is set to 4. */ |
| 1105 | /* */ |
| 1106 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1107 | /* src_strd - source stride */ |
| 1108 | /* alpha - alpha value for the boundary */ |
| 1109 | /* beta - beta value for the boundary */ |
| 1110 | /* */ |
| 1111 | /* Globals : None */ |
| 1112 | /* */ |
| 1113 | /* Processing : When the function is called twice, this operation is as */ |
| 1114 | /* described in Sec. 8.7.2.3 under the title "Filtering */ |
| 1115 | /* process for edges for bS equal to 4" in ITU T Rec H.264. */ |
| 1116 | /* */ |
| 1117 | /* Outputs : None */ |
| 1118 | /* */ |
| 1119 | /* Returns : None */ |
| 1120 | /* */ |
| 1121 | /* Issues : None */ |
| 1122 | /* */ |
| 1123 | /* Revision History: */ |
| 1124 | /* */ |
| 1125 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1126 | /* 29 12 2014 Kaushik Draft */ |
| 1127 | /* Senthoor */ |
| 1128 | /* */ |
| 1129 | /*****************************************************************************/ |
| 1130 | void ih264_deblk_chroma_vert_bs4_mbaff_bp(UWORD8 *pu1_src, |
| 1131 | WORD32 src_strd, |
| 1132 | WORD32 alpha, |
| 1133 | WORD32 beta) |
| 1134 | { |
| 1135 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of U */ |
| 1136 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of V */ |
| 1137 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1138 | WORD32 blk_strd = src_strd; |
| 1139 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1140 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1141 | WORD8 edge; |
| 1142 | |
| 1143 | pos_q0 = 0; |
| 1144 | pos_q1 = 2; |
| 1145 | pos_p0 = -2; |
| 1146 | pos_p1 = -4; |
| 1147 | |
| 1148 | for(edge = 0; edge < 4; |
| 1149 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 1150 | { |
| 1151 | pu1_src_temp_u = pu1_src_u; |
| 1152 | pu1_src_temp_v = pu1_src_v; |
| 1153 | |
| 1154 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1155 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1156 | p0_u = pu1_src_temp_u[pos_p0]; |
| 1157 | p1_u = pu1_src_temp_u[pos_p1]; |
| 1158 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1159 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1160 | p0_v = pu1_src_temp_v[pos_p0]; |
| 1161 | p1_v = pu1_src_temp_v[pos_p1]; |
| 1162 | |
| 1163 | /* Filter Decision */ |
| 1164 | if((ABS(p0_u - q0_u) < alpha) && |
| 1165 | (ABS(q1_u - q0_u) < beta) && |
| 1166 | (ABS(p1_u - p0_u) < beta)) |
| 1167 | { |
| 1168 | /* p0' */ |
| 1169 | pu1_src_temp_u[pos_p0] = ((X2(p1_u) + p0_u + q1_u + 2) >> 2); |
| 1170 | /* q0' */ |
| 1171 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 1172 | } |
| 1173 | |
| 1174 | /* Filter Decision */ |
| 1175 | if(ABS(p0_v - q0_v) < alpha && ABS(q1_v - q0_v) < beta |
| 1176 | && ABS(p1_v - p0_v) < beta) |
| 1177 | { |
| 1178 | /* p0' */ |
| 1179 | pu1_src_temp_v[pos_p0] = ((X2(p1_v) + p0_v + q1_v + 2) >> 2); |
| 1180 | /* q0' */ |
| 1181 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 1182 | } |
| 1183 | } |
| 1184 | } |
| 1185 | |
| 1186 | /*****************************************************************************/ |
| 1187 | /* */ |
| 1188 | /* Function Name : ih264_deblk_luma_vert_bslt4_mbaff() */ |
| 1189 | /* */ |
| 1190 | /* Description : This function performs filtering of a luma block */ |
| 1191 | /* vertical edge when boundary strength is less than 4. */ |
| 1192 | /* */ |
| 1193 | /* Inputs : pu1_src - pointer to the src sample q0 */ |
| 1194 | /* src_strd - source stride */ |
| 1195 | /* alpha - alpha value for the boundary */ |
| 1196 | /* beta - beta value for the boundary */ |
| 1197 | /* u4_bs - packed Boundary strength array */ |
| 1198 | /* pu1_cliptab - tc0_table */ |
| 1199 | /* */ |
| 1200 | /* Globals : None */ |
| 1201 | /* */ |
| 1202 | /* Processing : When the function is called twice, this operation is as */ |
| 1203 | /* described in Sec. 8.7.2.3 under the title "Filtering */ |
| 1204 | /* process for edges for bS less than 4" in ITU T Rec H.264.*/ |
| 1205 | /* */ |
| 1206 | /* Outputs : None */ |
| 1207 | /* */ |
| 1208 | /* Returns : None */ |
| 1209 | /* */ |
| 1210 | /* Issues : None */ |
| 1211 | /* */ |
| 1212 | /* Revision History: */ |
| 1213 | /* */ |
| 1214 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1215 | /* 29 12 2014 Kaushik Draft */ |
| 1216 | /* Senthoor */ |
| 1217 | /* */ |
| 1218 | /*****************************************************************************/ |
| 1219 | void ih264_deblk_luma_vert_bslt4_mbaff(UWORD8 *pu1_src, |
| 1220 | WORD32 src_strd, |
| 1221 | WORD32 alpha, |
| 1222 | WORD32 beta, |
| 1223 | UWORD32 u4_bs, |
| 1224 | const UWORD8 *pu1_cliptab) |
| 1225 | { |
| 1226 | WORD8 i = 0, edge; |
| 1227 | UWORD8 p2, p1, p0, q0, q1, q2; |
| 1228 | WORD32 pos_p2, pos_p1, pos_p0, pos_q0, pos_q1, pos_q2; |
| 1229 | UWORD8 a_p, a_q; /* Threshold variables */ |
| 1230 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * 2 */ |
| 1231 | UWORD8 *pu1_src_temp; |
| 1232 | WORD8 delta; |
| 1233 | WORD8 tc; |
| 1234 | WORD16 val; |
| 1235 | UWORD8 tc0, u1_bs; |
| 1236 | |
| 1237 | pos_q0 = 0; |
| 1238 | pos_q1 = 1; |
| 1239 | pos_q2 = 2; |
| 1240 | pos_p0 = -1; |
| 1241 | pos_p1 = -2; |
| 1242 | pos_p2 = -3; |
| 1243 | |
| 1244 | for(edge = 0; edge < 4; edge++, pu1_src += blk_strd) |
| 1245 | { |
| 1246 | pu1_src_temp = pu1_src; |
| 1247 | /* Filter Decision */ |
| 1248 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 1249 | if(!u1_bs) |
| 1250 | continue; |
| 1251 | /* tc0 */ |
| 1252 | tc0 = pu1_cliptab[u1_bs]; |
| 1253 | for(i = 0; i < 2; ++i, pu1_src_temp += src_strd) |
| 1254 | { |
| 1255 | q0 = pu1_src_temp[pos_q0]; |
| 1256 | q1 = pu1_src_temp[pos_q1]; |
| 1257 | p0 = pu1_src_temp[pos_p0]; |
| 1258 | p1 = pu1_src_temp[pos_p1]; |
| 1259 | |
| 1260 | /* Filter Decision */ |
| 1261 | if((ABS(p0 - q0) >= alpha) || |
| 1262 | (ABS(q1 - q0) >= beta) || |
| 1263 | (ABS(p1 - p0) >= beta)) |
| 1264 | continue; |
| 1265 | |
| 1266 | q2 = pu1_src_temp[pos_q2]; |
| 1267 | p2 = pu1_src_temp[pos_p2]; |
| 1268 | |
| 1269 | a_p = ABS(p2 - p0); |
| 1270 | a_q = ABS(q2 - q0); |
| 1271 | |
| 1272 | /* tc */ |
| 1273 | tc = tc0 + (a_p < beta) + (a_q < beta); |
| 1274 | |
| 1275 | val = ((((q0 - p0) << 2) + (p1 - q1) + 4) >> 3); |
| 1276 | delta = CLIP3(-tc, tc, val); |
| 1277 | /* p0' */ |
| 1278 | val = p0 + delta; |
| 1279 | pu1_src_temp[pos_p0] = CLIP_U8(val); |
| 1280 | /* q0' */ |
| 1281 | val = q0 - delta; |
| 1282 | pu1_src_temp[pos_q0] = CLIP_U8(val); |
| 1283 | |
| 1284 | /* Luma only */ |
| 1285 | if(a_p < beta) |
| 1286 | { |
| 1287 | /* p1' */ |
| 1288 | val = ((p2 + ((p0 + q0 + 1) >> 1) - (p1 << 1)) >> 1); |
| 1289 | pu1_src_temp[pos_p1] += CLIP3(-tc0, tc0, val); |
| 1290 | } |
| 1291 | |
| 1292 | if(a_q < beta) |
| 1293 | { |
| 1294 | /* q1' */ |
| 1295 | val = ((q2 + ((p0 + q0 + 1) >> 1) - (q1 << 1)) >> 1); |
| 1296 | pu1_src_temp[pos_q1] += CLIP3(-tc0, tc0, val); |
| 1297 | } |
| 1298 | } |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | /*****************************************************************************/ |
| 1303 | /* */ |
| 1304 | /* Function Name : ih264_deblk_chroma_vert_bslt4_mbaff_bp() */ |
| 1305 | /* */ |
| 1306 | /* Description : This function performs filtering of a chroma block */ |
| 1307 | /* vertical edge when boundary strength is less than 4. */ |
| 1308 | /* */ |
| 1309 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1310 | /* src_strd - source stride */ |
| 1311 | /* alpha - alpha value for the boundary */ |
| 1312 | /* beta - beta value for the boundary */ |
| 1313 | /* u4_bs - packed Boundary strength array */ |
| 1314 | /* pu1_cliptab - tc0_table */ |
| 1315 | /* */ |
| 1316 | /* Globals : None */ |
| 1317 | /* */ |
| 1318 | /* Processing : When the function is called twice, this operation is as */ |
| 1319 | /* described in Sec. 8.7.2.3 under the title "Filtering */ |
| 1320 | /* process for edges for bS less than 4" in ITU T Rec H.264.*/ |
| 1321 | /* */ |
| 1322 | /* Outputs : None */ |
| 1323 | /* */ |
| 1324 | /* Returns : None */ |
| 1325 | /* */ |
| 1326 | /* Issues : None */ |
| 1327 | /* */ |
| 1328 | /* Revision History: */ |
| 1329 | /* */ |
| 1330 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1331 | /* 29 12 2014 Kaushik Draft */ |
| 1332 | /* Senthoor */ |
| 1333 | /* */ |
| 1334 | /*****************************************************************************/ |
| 1335 | void ih264_deblk_chroma_vert_bslt4_mbaff_bp(UWORD8 *pu1_src, |
| 1336 | WORD32 src_strd, |
| 1337 | WORD32 alpha, |
| 1338 | WORD32 beta, |
| 1339 | UWORD32 u4_bs, |
| 1340 | const UWORD8 *pu1_cliptab) |
| 1341 | { |
| 1342 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 1343 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 1344 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1345 | WORD32 blk_strd = src_strd; |
| 1346 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1347 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1348 | WORD8 edge; |
| 1349 | WORD8 delta; |
| 1350 | WORD8 tc; |
| 1351 | WORD16 val; |
| 1352 | UWORD8 tc0, u1_bs; |
| 1353 | |
| 1354 | pos_q0 = 0; |
| 1355 | pos_q1 = 2; |
| 1356 | pos_p0 = -2; |
| 1357 | pos_p1 = -4; |
| 1358 | |
| 1359 | for(edge = 0; edge < 4; |
| 1360 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 1361 | { |
| 1362 | pu1_src_temp_u = pu1_src_u; |
| 1363 | pu1_src_temp_v = pu1_src_v; |
| 1364 | /* Filter Decision */ |
| 1365 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 1366 | if(!u1_bs) |
| 1367 | continue; |
| 1368 | /* tc0 */ |
| 1369 | tc0 = pu1_cliptab[u1_bs]; |
| 1370 | tc = tc0 + 1; |
| 1371 | |
| 1372 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1373 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1374 | p0_u = pu1_src_temp_u[pos_p0]; |
| 1375 | p1_u = pu1_src_temp_u[pos_p1]; |
| 1376 | |
| 1377 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1378 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1379 | p0_v = pu1_src_temp_v[pos_p0]; |
| 1380 | p1_v = pu1_src_temp_v[pos_p1]; |
| 1381 | |
| 1382 | /* Filter Decision */ |
| 1383 | if((ABS(p0_u - q0_u) < alpha) && |
| 1384 | (ABS(q1_u - q0_u) < beta) && |
| 1385 | (ABS(p1_u - p0_u) < beta)) |
| 1386 | { |
| 1387 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 1388 | delta = CLIP3(-tc, tc, val); |
| 1389 | /* p0' */ |
| 1390 | val = p0_u + delta; |
| 1391 | pu1_src_temp_u[pos_p0] = CLIP_U8(val); |
| 1392 | /* q0' */ |
| 1393 | val = q0_u - delta; |
| 1394 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 1395 | } |
| 1396 | |
| 1397 | /* Filter Decision */ |
| 1398 | if((ABS(p0_v - q0_v) < alpha) && |
| 1399 | (ABS(q1_v - q0_v) < beta) && |
| 1400 | (ABS(p1_v - p0_v) < beta)) |
| 1401 | { |
| 1402 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 1403 | delta = CLIP3(-tc, tc, val); |
| 1404 | /* p0' */ |
| 1405 | val = p0_v + delta; |
| 1406 | pu1_src_temp_v[pos_p0] = CLIP_U8(val); |
| 1407 | /* q0' */ |
| 1408 | val = q0_v - delta; |
| 1409 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 1410 | } |
| 1411 | } |
| 1412 | } |
| 1413 | |
| 1414 | /*****************************************************************************/ |
| 1415 | /* Function Definitions for chroma deblocking in high profile */ |
| 1416 | /*****************************************************************************/ |
| 1417 | |
| 1418 | /*****************************************************************************/ |
| 1419 | /* */ |
| 1420 | /* Function Name : ih264_deblk_chroma_vert_bs4() */ |
| 1421 | /* */ |
| 1422 | /* Description : This function performs filtering of a chroma block */ |
| 1423 | /* vertical edge when the boundary strength is set to 4 in */ |
| 1424 | /* high profile. */ |
| 1425 | /* */ |
| 1426 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1427 | /* src_strd - source stride */ |
| 1428 | /* alpha_cb - alpha value for the boundary in U */ |
| 1429 | /* beta_cb - beta value for the boundary in U */ |
| 1430 | /* alpha_cr - alpha value for the boundary in V */ |
| 1431 | /* beta_cr - beta value for the boundary in V */ |
| 1432 | /* */ |
| 1433 | /* Globals : None */ |
| 1434 | /* */ |
| 1435 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 1436 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 1437 | /* ITU T Rec H.264 with alpha and beta values different in */ |
| 1438 | /* U and V. */ |
| 1439 | /* */ |
| 1440 | /* Outputs : None */ |
| 1441 | /* */ |
| 1442 | /* Returns : None */ |
| 1443 | /* */ |
| 1444 | /* Issues : None */ |
| 1445 | /* */ |
| 1446 | /* Revision History: */ |
| 1447 | /* */ |
| 1448 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1449 | /* 29 12 2014 Kaushik Draft */ |
| 1450 | /* Senthoor */ |
| 1451 | /* */ |
| 1452 | /*****************************************************************************/ |
| 1453 | void ih264_deblk_chroma_vert_bs4(UWORD8 *pu1_src, |
| 1454 | WORD32 src_strd, |
| 1455 | WORD32 alpha_cb, |
| 1456 | WORD32 beta_cb, |
| 1457 | WORD32 alpha_cr, |
| 1458 | WORD32 beta_cr) |
| 1459 | { |
| 1460 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of U */ |
| 1461 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of V */ |
| 1462 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1463 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * 2*/ |
| 1464 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1465 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1466 | WORD8 i = 0, edge; |
| 1467 | |
| 1468 | pos_q0 = 0; |
| 1469 | pos_q1 = 2; |
| 1470 | pos_p0 = -2; |
| 1471 | pos_p1 = -4; |
| 1472 | |
| 1473 | for(edge = 0; edge < 4; |
| 1474 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 1475 | { |
| 1476 | pu1_src_temp_u = pu1_src_u; |
| 1477 | pu1_src_temp_v = pu1_src_v; |
| 1478 | for(i = 0; i < 2; ++i, pu1_src_temp_u += src_strd, pu1_src_temp_v += |
| 1479 | src_strd) |
| 1480 | { |
| 1481 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1482 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1483 | p0_u = pu1_src_temp_u[pos_p0]; |
| 1484 | p1_u = pu1_src_temp_u[pos_p1]; |
| 1485 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1486 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1487 | p0_v = pu1_src_temp_v[pos_p0]; |
| 1488 | p1_v = pu1_src_temp_v[pos_p1]; |
| 1489 | |
| 1490 | /* Filter Decision */ |
| 1491 | if((ABS(p0_u - q0_u) < alpha_cb) && |
| 1492 | (ABS(q1_u - q0_u) < beta_cb) && |
| 1493 | (ABS(p1_u - p0_u) < beta_cb)) |
| 1494 | { |
| 1495 | /* p0' */ |
| 1496 | pu1_src_temp_u[pos_p0] = ((X2(p1_u) + p0_u + q1_u + 2) >> 2); |
| 1497 | /* q0' */ |
| 1498 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 1499 | } |
| 1500 | |
| 1501 | /* Filter Decision */ |
| 1502 | if((ABS(p0_v - q0_v) < alpha_cr) && |
| 1503 | (ABS(q1_v - q0_v) < beta_cr) && |
| 1504 | (ABS(p1_v - p0_v) < beta_cr)) |
| 1505 | { |
| 1506 | /* p0' */ |
| 1507 | pu1_src_temp_v[pos_p0] = ((X2(p1_v) + p0_v + q1_v + 2) >> 2); |
| 1508 | /* q0' */ |
| 1509 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 1510 | } |
| 1511 | } |
| 1512 | } |
| 1513 | } |
| 1514 | |
| 1515 | /*****************************************************************************/ |
| 1516 | /* */ |
| 1517 | /* Function Name : ih264_deblk_chroma_horz_bs4() */ |
| 1518 | /* */ |
| 1519 | /* Description : This function performs filtering of a chroma block */ |
| 1520 | /* horizontal edge when the boundary strength is set to 4 */ |
| 1521 | /* in high profile. */ |
| 1522 | /* */ |
| 1523 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1524 | /* src_strd - source stride */ |
| 1525 | /* alpha_cb - alpha value for the boundary in U */ |
| 1526 | /* beta_cb - beta value for the boundary in U */ |
| 1527 | /* alpha_cr - alpha value for the boundary in V */ |
| 1528 | /* beta_cr - beta value for the boundary in V */ |
| 1529 | /* */ |
| 1530 | /* Globals : None */ |
| 1531 | /* */ |
| 1532 | /* Processing : This operation is described in Sec. 8.7.2.4 under the */ |
| 1533 | /* title "Filtering process for edges for bS equal to 4" in */ |
| 1534 | /* ITU T Rec H.264 with alpha and beta values different in */ |
| 1535 | /* U and V. */ |
| 1536 | /* */ |
| 1537 | /* Outputs : None */ |
| 1538 | /* */ |
| 1539 | /* Returns : None */ |
| 1540 | /* */ |
| 1541 | /* Issues : None */ |
| 1542 | /* */ |
| 1543 | /* Revision History: */ |
| 1544 | /* */ |
| 1545 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1546 | /* 29 12 2014 Kaushik Draft */ |
| 1547 | /* Senthoor */ |
| 1548 | /* */ |
| 1549 | /*****************************************************************************/ |
| 1550 | void ih264_deblk_chroma_horz_bs4(UWORD8 *pu1_src, |
| 1551 | WORD32 src_strd, |
| 1552 | WORD32 alpha_cb, |
| 1553 | WORD32 beta_cb, |
| 1554 | WORD32 alpha_cr, |
| 1555 | WORD32 beta_cr) |
| 1556 | { |
| 1557 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of U */ |
| 1558 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of V */ |
| 1559 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1560 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1561 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1562 | UWORD8 *pu1_p1_u; /* Pointer to the src sample p1 of U */ |
| 1563 | UWORD8 *pu1_p1_v; /* Pointer to the src sample p1 of U */ |
| 1564 | UWORD8 *pu1_p1_temp_u, *pu1_p1_temp_v; |
| 1565 | WORD8 i = 0, edge; |
| 1566 | |
| 1567 | pu1_p1_u = pu1_src_u - (src_strd << 1); |
| 1568 | pu1_p1_v = pu1_src_v - (src_strd << 1); |
| 1569 | pos_q0 = 0; |
| 1570 | pos_q1 = src_strd; |
| 1571 | pos_p0 = src_strd; |
| 1572 | pos_p1 = 0; |
| 1573 | |
| 1574 | for(edge = 0; edge < 4; edge++, pu1_src_u += 4, pu1_p1_u += 4, pu1_src_v += |
| 1575 | 4, pu1_p1_v += 4) |
| 1576 | { |
| 1577 | pu1_src_temp_u = pu1_src_u; |
| 1578 | pu1_p1_temp_u = pu1_p1_u; |
| 1579 | pu1_src_temp_v = pu1_src_v; |
| 1580 | pu1_p1_temp_v = pu1_p1_v; |
| 1581 | for(i = 0; i < 2; ++i, pu1_src_temp_u += 2, pu1_p1_temp_u += 2, |
| 1582 | pu1_src_temp_v += 2, pu1_p1_temp_v += 2) |
| 1583 | { |
| 1584 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1585 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1586 | p0_u = pu1_p1_temp_u[pos_p0]; |
| 1587 | p1_u = pu1_p1_temp_u[pos_p1]; |
| 1588 | |
| 1589 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1590 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1591 | p0_v = pu1_p1_temp_v[pos_p0]; |
| 1592 | p1_v = pu1_p1_temp_v[pos_p1]; |
| 1593 | |
| 1594 | /* Filter Decision */ |
| 1595 | if(ABS(p0_u - q0_u) < alpha_cb && ABS(q1_u - q0_u) < beta_cb |
| 1596 | && ABS(p1_u - p0_u) < beta_cb) |
| 1597 | { |
| 1598 | /* p0' */ |
| 1599 | pu1_p1_temp_u[pos_p0] = (X2(p1_u) + p0_u + q1_u + 2) >> 2; |
| 1600 | /* q0' */ |
| 1601 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 1602 | } |
| 1603 | |
| 1604 | /* Filter Decision */ |
| 1605 | if(ABS(p0_v - q0_v) < alpha_cr && ABS(q1_v - q0_v) < beta_cr |
| 1606 | && ABS(p1_v - p0_v) < beta_cr) |
| 1607 | { |
| 1608 | /* p0' */ |
| 1609 | pu1_p1_temp_v[pos_p0] = (X2(p1_v) + p0_v + q1_v + 2) >> 2; |
| 1610 | /* q0' */ |
| 1611 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 1612 | } |
| 1613 | } |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | /*****************************************************************************/ |
| 1618 | /* */ |
| 1619 | /* Function Name : ih264_deblk_chroma_vert_bslt4() */ |
| 1620 | /* */ |
| 1621 | /* Description : This function performs filtering of a chroma block */ |
| 1622 | /* vertical edge when the boundary strength is less than 4 */ |
| 1623 | /* in high profile. */ |
| 1624 | /* */ |
| 1625 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1626 | /* src_strd - source stride */ |
| 1627 | /* alpha_cb - alpha value for the boundary in U */ |
| 1628 | /* beta_cb - beta value for the boundary in U */ |
| 1629 | /* alpha_cr - alpha value for the boundary in V */ |
| 1630 | /* beta_cr - beta value for the boundary in V */ |
| 1631 | /* u4_bs - packed Boundary strength array */ |
| 1632 | /* pu1_cliptab_cb - tc0_table for U */ |
| 1633 | /* pu1_cliptab_cr - tc0_table for V */ |
| 1634 | /* */ |
| 1635 | /* Globals : None */ |
| 1636 | /* */ |
| 1637 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 1638 | /* title "Filtering process for edges for bS less than 4" */ |
| 1639 | /* in ITU T Rec H.264 with alpha and beta values different */ |
| 1640 | /* in U and V. */ |
| 1641 | /* */ |
| 1642 | /* Outputs : None */ |
| 1643 | /* */ |
| 1644 | /* Returns : None */ |
| 1645 | /* */ |
| 1646 | /* Issues : None */ |
| 1647 | /* */ |
| 1648 | /* Revision History: */ |
| 1649 | /* */ |
| 1650 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1651 | /* 29 12 2014 Kaushik Draft */ |
| 1652 | /* Senthoor */ |
| 1653 | /* */ |
| 1654 | /*****************************************************************************/ |
| 1655 | void ih264_deblk_chroma_vert_bslt4(UWORD8 *pu1_src, |
| 1656 | WORD32 src_strd, |
| 1657 | WORD32 alpha_cb, |
| 1658 | WORD32 beta_cb, |
| 1659 | WORD32 alpha_cr, |
| 1660 | WORD32 beta_cr, |
| 1661 | UWORD32 u4_bs, |
| 1662 | const UWORD8 *pu1_cliptab_cb, |
| 1663 | const UWORD8 *pu1_cliptab_cr) |
| 1664 | { |
| 1665 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 1666 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 1667 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1668 | WORD32 blk_strd = src_strd << 1; /* block_increment = src_strd * 2 */ |
| 1669 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1670 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1671 | WORD8 i = 0, edge; |
| 1672 | WORD8 delta; |
| 1673 | WORD8 tcb, tcr; |
| 1674 | WORD16 val; |
| 1675 | UWORD8 tcb0, tcr0, u1_bs; |
| 1676 | |
| 1677 | pos_q0 = 0; |
| 1678 | pos_q1 = 2; |
| 1679 | pos_p0 = -2; |
| 1680 | pos_p1 = -4; |
| 1681 | |
| 1682 | for(edge = 0; edge < 4; |
| 1683 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 1684 | { |
| 1685 | pu1_src_temp_u = pu1_src_u; |
| 1686 | pu1_src_temp_v = pu1_src_v; |
| 1687 | /* Filter Decision */ |
| 1688 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 1689 | if(!u1_bs) |
| 1690 | continue; |
| 1691 | /* tc0 */ |
| 1692 | tcb0 = pu1_cliptab_cb[u1_bs]; |
| 1693 | tcr0 = pu1_cliptab_cr[u1_bs]; |
| 1694 | tcb = tcb0 + 1; |
| 1695 | tcr = tcr0 + 1; |
| 1696 | for(i = 0; i < 2; ++i, pu1_src_temp_u += src_strd, pu1_src_temp_v += |
| 1697 | src_strd) |
| 1698 | { |
| 1699 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1700 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1701 | p0_u = pu1_src_temp_u[pos_p0]; |
| 1702 | p1_u = pu1_src_temp_u[pos_p1]; |
| 1703 | |
| 1704 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1705 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1706 | p0_v = pu1_src_temp_v[pos_p0]; |
| 1707 | p1_v = pu1_src_temp_v[pos_p1]; |
| 1708 | |
| 1709 | /* Filter Decision */ |
| 1710 | if(ABS(p0_u - q0_u) < alpha_cb && ABS(q1_u - q0_u) < beta_cb |
| 1711 | && ABS(p1_u - p0_u) < beta_cb) |
| 1712 | { |
| 1713 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 1714 | delta = CLIP3(-tcb, tcb, val); |
| 1715 | /* p0' */ |
| 1716 | val = p0_u + delta; |
| 1717 | pu1_src_temp_u[pos_p0] = CLIP_U8(val); |
| 1718 | /* q0' */ |
| 1719 | val = q0_u - delta; |
| 1720 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 1721 | } |
| 1722 | |
| 1723 | /* Filter Decision */ |
| 1724 | if(ABS(p0_v - q0_v) < alpha_cr && ABS(q1_v - q0_v) < beta_cr |
| 1725 | && ABS(p1_v - p0_v) < beta_cr) |
| 1726 | { |
| 1727 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 1728 | delta = CLIP3(-tcr, tcr, val); |
| 1729 | /* p0' */ |
| 1730 | val = p0_v + delta; |
| 1731 | pu1_src_temp_v[pos_p0] = CLIP_U8(val); |
| 1732 | /* q0' */ |
| 1733 | val = q0_v - delta; |
| 1734 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 1735 | } |
| 1736 | } |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | /*****************************************************************************/ |
| 1741 | /* */ |
| 1742 | /* Function Name : ih264_deblk_chroma_horz_bslt4() */ |
| 1743 | /* */ |
| 1744 | /* Description : This function performs filtering of a chroma block */ |
| 1745 | /* horizontal edge when the boundary strength is less than */ |
| 1746 | /* 4 in high profile. */ |
| 1747 | /* */ |
| 1748 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1749 | /* src_strd - source stride */ |
| 1750 | /* alpha_cb - alpha value for the boundary in U */ |
| 1751 | /* beta_cb - beta value for the boundary in U */ |
| 1752 | /* alpha_cr - alpha value for the boundary in V */ |
| 1753 | /* beta_cr - beta value for the boundary in V */ |
| 1754 | /* u4_bs - packed Boundary strength array */ |
| 1755 | /* pu1_cliptab_cb - tc0_table for U */ |
| 1756 | /* pu1_cliptab_cr - tc0_table for V */ |
| 1757 | /* */ |
| 1758 | /* Globals : None */ |
| 1759 | /* */ |
| 1760 | /* Processing : This operation is described in Sec. 8.7.2.3 under the */ |
| 1761 | /* title "Filtering process for edges for bS less than 4" */ |
| 1762 | /* in ITU T Rec H.264 with alpha and beta values different */ |
| 1763 | /* in U and V. */ |
| 1764 | /* */ |
| 1765 | /* Outputs : None */ |
| 1766 | /* */ |
| 1767 | /* Returns : None */ |
| 1768 | /* */ |
| 1769 | /* Issues : None */ |
| 1770 | /* */ |
| 1771 | /* Revision History: */ |
| 1772 | /* */ |
| 1773 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1774 | /* 29 12 2014 Kaushik Draft */ |
| 1775 | /* Senthoor */ |
| 1776 | /* */ |
| 1777 | /*****************************************************************************/ |
| 1778 | void ih264_deblk_chroma_horz_bslt4(UWORD8 *pu1_src, |
| 1779 | WORD32 src_strd, |
| 1780 | WORD32 alpha_cb, |
| 1781 | WORD32 beta_cb, |
| 1782 | WORD32 alpha_cr, |
| 1783 | WORD32 beta_cr, |
| 1784 | UWORD32 u4_bs, |
| 1785 | const UWORD8 *pu1_cliptab_cb, |
| 1786 | const UWORD8 *pu1_cliptab_cr) |
| 1787 | { |
| 1788 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 1789 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 1790 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1791 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1792 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1793 | UWORD8 *pu1_p1_u; /* Pointer to the src sample p1 of plane U*/ |
| 1794 | UWORD8 *pu1_p1_v; /* Pointer to the src sample p1 of plane V*/ |
| 1795 | UWORD8 *pu1_p1_temp_u, *pu1_p1_temp_v; |
| 1796 | WORD8 i = 0, edge; |
| 1797 | WORD8 delta; |
| 1798 | WORD8 tcb, tcr; |
| 1799 | WORD16 val; |
| 1800 | UWORD8 u1_bs; |
| 1801 | UWORD8 tcb0, tcr0; |
| 1802 | |
| 1803 | pu1_p1_u = pu1_src_u - (src_strd << 1); |
| 1804 | pu1_p1_v = pu1_src_v - (src_strd << 1); |
| 1805 | pos_q0 = 0; |
| 1806 | pos_q1 = src_strd; |
| 1807 | pos_p0 = src_strd; |
| 1808 | pos_p1 = 0; |
| 1809 | |
| 1810 | for(edge = 0; edge < 4; edge++, pu1_src_u += 4, pu1_p1_u += 4, |
| 1811 | pu1_src_v += 4, pu1_p1_v += 4) |
| 1812 | { |
| 1813 | pu1_src_temp_u = pu1_src_u; |
| 1814 | pu1_p1_temp_u = pu1_p1_u; |
| 1815 | pu1_src_temp_v = pu1_src_v; |
| 1816 | pu1_p1_temp_v = pu1_p1_v; |
| 1817 | |
| 1818 | /* Filter Decision */ |
| 1819 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 1820 | if(!u1_bs) |
| 1821 | continue; |
| 1822 | /* tc0 */ |
| 1823 | tcb0 = pu1_cliptab_cb[u1_bs]; |
| 1824 | tcr0 = pu1_cliptab_cr[u1_bs]; |
| 1825 | |
| 1826 | for(i = 0; i < 2; ++i, pu1_src_temp_u += 2, pu1_p1_temp_u += 2, |
| 1827 | pu1_src_temp_v += 2, pu1_p1_temp_v += 2) |
| 1828 | { |
| 1829 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1830 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1831 | p0_u = pu1_p1_temp_u[pos_p0]; |
| 1832 | p1_u = pu1_p1_temp_u[pos_p1]; |
| 1833 | |
| 1834 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1835 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1836 | p0_v = pu1_p1_temp_v[pos_p0]; |
| 1837 | p1_v = pu1_p1_temp_v[pos_p1]; |
| 1838 | |
| 1839 | /* tc */ |
| 1840 | tcb = tcb0 + 1; |
| 1841 | tcr = tcr0 + 1; |
| 1842 | /* Filter Decision */ |
| 1843 | if(ABS(p0_u - q0_u) < alpha_cb && ABS(q1_u - q0_u) < beta_cb |
| 1844 | && ABS(p1_u - p0_u) < beta_cb) |
| 1845 | { |
| 1846 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 1847 | delta = CLIP3(-tcb, tcb, val); |
| 1848 | /* p0' */ |
| 1849 | val = p0_u + delta; |
| 1850 | pu1_p1_temp_u[pos_p0] = CLIP_U8(val); |
| 1851 | /* q0' */ |
| 1852 | val = q0_u - delta; |
| 1853 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 1854 | } |
| 1855 | /* Filter Decision */ |
| 1856 | if(ABS(p0_v - q0_v) < alpha_cr && ABS(q1_v - q0_v) < beta_cr |
| 1857 | && ABS(p1_v - p0_v) < beta_cr) |
| 1858 | { |
| 1859 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 1860 | delta = CLIP3(-tcr, tcr, val); |
| 1861 | /* p0' */ |
| 1862 | val = p0_v + delta; |
| 1863 | pu1_p1_temp_v[pos_p0] = CLIP_U8(val); |
| 1864 | /* q0' */ |
| 1865 | val = q0_v - delta; |
| 1866 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 1867 | } |
| 1868 | } |
| 1869 | } |
| 1870 | } |
| 1871 | |
| 1872 | /*****************************************************************************/ |
| 1873 | /* */ |
| 1874 | /* Function Name : ih264_deblk_chroma_vert_bs4_mbaff() */ |
| 1875 | /* */ |
| 1876 | /* Description : This function performs filtering of a chroma block */ |
| 1877 | /* vertical edge when boundary strength is set to 4 in high */ |
| 1878 | /* profile. */ |
| 1879 | /* */ |
| 1880 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1881 | /* src_strd - source stride */ |
| 1882 | /* alpha_cb - alpha value for the boundary in U */ |
| 1883 | /* beta_cb - beta value for the boundary in U */ |
| 1884 | /* alpha_cr - alpha value for the boundary in V */ |
| 1885 | /* beta_cr - beta value for the boundary in V */ |
| 1886 | /* u4_bs - packed Boundary strength array */ |
| 1887 | /* pu1_cliptab_cb - tc0_table for U */ |
| 1888 | /* pu1_cliptab_cr - tc0_table for V */ |
| 1889 | /* */ |
| 1890 | /* Globals : None */ |
| 1891 | /* */ |
| 1892 | /* Processing : When the function is called twice, this operation is as */ |
| 1893 | /* described in Sec. 8.7.2.4 under the title "Filtering */ |
| 1894 | /* process for edges for bS equal to 4" in ITU T Rec H.264 */ |
| 1895 | /* with alpha and beta values different in U and V. */ |
| 1896 | /* */ |
| 1897 | /* Outputs : None */ |
| 1898 | /* */ |
| 1899 | /* Returns : None */ |
| 1900 | /* */ |
| 1901 | /* Issues : None */ |
| 1902 | /* */ |
| 1903 | /* Revision History: */ |
| 1904 | /* */ |
| 1905 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 1906 | /* 29 12 2014 Kaushik Draft */ |
| 1907 | /* Senthoor */ |
| 1908 | /* */ |
| 1909 | /*****************************************************************************/ |
| 1910 | void ih264_deblk_chroma_vert_bs4_mbaff(UWORD8 *pu1_src, |
| 1911 | WORD32 src_strd, |
| 1912 | WORD32 alpha_cb, |
| 1913 | WORD32 beta_cb, |
| 1914 | WORD32 alpha_cr, |
| 1915 | WORD32 beta_cr) |
| 1916 | { |
| 1917 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of U */ |
| 1918 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of V */ |
| 1919 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 1920 | WORD32 blk_strd = src_strd; |
| 1921 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 1922 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 1923 | WORD8 edge; |
| 1924 | |
| 1925 | pos_q0 = 0; |
| 1926 | pos_q1 = 2; |
| 1927 | pos_p0 = -2; |
| 1928 | pos_p1 = -4; |
| 1929 | |
| 1930 | for(edge = 0; edge < 4; |
| 1931 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 1932 | { |
| 1933 | pu1_src_temp_u = pu1_src_u; |
| 1934 | pu1_src_temp_v = pu1_src_v; |
| 1935 | q0_u = pu1_src_temp_u[pos_q0]; |
| 1936 | q1_u = pu1_src_temp_u[pos_q1]; |
| 1937 | p0_u = pu1_src_temp_u[pos_p0]; |
| 1938 | p1_u = pu1_src_temp_u[pos_p1]; |
| 1939 | q0_v = pu1_src_temp_v[pos_q0]; |
| 1940 | q1_v = pu1_src_temp_v[pos_q1]; |
| 1941 | p0_v = pu1_src_temp_v[pos_p0]; |
| 1942 | p1_v = pu1_src_temp_v[pos_p1]; |
| 1943 | |
| 1944 | /* Filter Decision */ |
| 1945 | if((ABS(p0_u - q0_u) < alpha_cb) && |
| 1946 | (ABS(q1_u - q0_u) < beta_cb) && |
| 1947 | (ABS(p1_u - p0_u) < beta_cb)) |
| 1948 | { |
| 1949 | /* p0' */ |
| 1950 | pu1_src_temp_u[pos_p0] = ((X2(p1_u) + p0_u + q1_u + 2) >> 2); |
| 1951 | /* q0' */ |
| 1952 | pu1_src_temp_u[pos_q0] = (X2(q1_u) + q0_u + p1_u + 2) >> 2; |
| 1953 | } |
| 1954 | |
| 1955 | /* Filter Decision */ |
| 1956 | if((ABS(p0_v - q0_v) < alpha_cr) && |
| 1957 | (ABS(q1_v - q0_v) < beta_cr) && |
| 1958 | (ABS(p1_v - p0_v) < beta_cr)) |
| 1959 | { |
| 1960 | /* p0' */ |
| 1961 | pu1_src_temp_v[pos_p0] = ((X2(p1_v) + p0_v + q1_v + 2) >> 2); |
| 1962 | /* q0' */ |
| 1963 | pu1_src_temp_v[pos_q0] = (X2(q1_v) + q0_v + p1_v + 2) >> 2; |
| 1964 | } |
| 1965 | } |
| 1966 | } |
| 1967 | |
| 1968 | /*****************************************************************************/ |
| 1969 | /* */ |
| 1970 | /* Function Name : ih264_deblk_chroma_vert_bslt4_mbaff() */ |
| 1971 | /* */ |
| 1972 | /* Description : This function performs filtering of a chroma block */ |
| 1973 | /* vertical edge when boundary strength is less than 4 in */ |
| 1974 | /* high profile. */ |
| 1975 | /* */ |
| 1976 | /* Inputs : pu1_src - pointer to the src sample q0 of U */ |
| 1977 | /* src_strd - source stride */ |
| 1978 | /* alpha_cb - alpha value for the boundary in U */ |
| 1979 | /* beta_cb - beta value for the boundary in U */ |
| 1980 | /* alpha_cr - alpha value for the boundary in V */ |
| 1981 | /* beta_cr - beta value for the boundary in V */ |
| 1982 | /* u4_bs - packed Boundary strength array */ |
| 1983 | /* pu1_cliptab_cb - tc0_table for U */ |
| 1984 | /* pu1_cliptab_cr - tc0_table for V */ |
| 1985 | /* */ |
| 1986 | /* Globals : None */ |
| 1987 | /* */ |
| 1988 | /* Processing : When the function is called twice, this operation is as */ |
| 1989 | /* described in Sec. 8.7.2.4 under the title "Filtering */ |
| 1990 | /* process for edges for bS less than 4" in ITU T Rec H.264 */ |
| 1991 | /* with alpha and beta values different in U and V. */ |
| 1992 | /* */ |
| 1993 | /* Outputs : None */ |
| 1994 | /* */ |
| 1995 | /* Returns : None */ |
| 1996 | /* */ |
| 1997 | /* Issues : None */ |
| 1998 | /* */ |
| 1999 | /* Revision History: */ |
| 2000 | /* */ |
| 2001 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 2002 | /* 29 12 2014 Kaushik Draft */ |
| 2003 | /* Senthoor */ |
| 2004 | /* */ |
| 2005 | /*****************************************************************************/ |
| 2006 | void ih264_deblk_chroma_vert_bslt4_mbaff(UWORD8 *pu1_src, |
| 2007 | WORD32 src_strd, |
| 2008 | WORD32 alpha_cb, |
| 2009 | WORD32 beta_cb, |
| 2010 | WORD32 alpha_cr, |
| 2011 | WORD32 beta_cr, |
| 2012 | UWORD32 u4_bs, |
| 2013 | const UWORD8 *pu1_cliptab_cb, |
| 2014 | const UWORD8 *pu1_cliptab_cr) |
| 2015 | { |
| 2016 | UWORD8 *pu1_src_u = pu1_src; /* Pointer to the src sample q0 of plane U*/ |
| 2017 | UWORD8 *pu1_src_v = pu1_src + 1; /* Pointer to the src sample q0 of plane V*/ |
| 2018 | UWORD8 p1_u, p0_u, q0_u, q1_u, p1_v, p0_v, q0_v, q1_v; |
| 2019 | WORD32 blk_strd = src_strd; |
| 2020 | WORD32 pos_p1, pos_p0, pos_q0, pos_q1; |
| 2021 | UWORD8 *pu1_src_temp_u, *pu1_src_temp_v; |
| 2022 | WORD8 edge; |
| 2023 | WORD8 delta; |
| 2024 | WORD8 tcb, tcr; |
| 2025 | WORD16 val; |
| 2026 | UWORD8 tcb0, tcr0, u1_bs; |
| 2027 | |
| 2028 | pos_q0 = 0; |
| 2029 | pos_q1 = 2; |
| 2030 | pos_p0 = -2; |
| 2031 | pos_p1 = -4; |
| 2032 | |
| 2033 | for(edge = 0; edge < 4; |
| 2034 | edge++, pu1_src_u += blk_strd, pu1_src_v += blk_strd) |
| 2035 | { |
| 2036 | pu1_src_temp_u = pu1_src_u; |
| 2037 | pu1_src_temp_v = pu1_src_v; |
| 2038 | /* Filter Decision */ |
| 2039 | u1_bs = (UWORD8)((u4_bs >> ((3 - edge) << 3)) & 0x0ff); |
| 2040 | if(!u1_bs) |
| 2041 | continue; |
| 2042 | /* tc0 */ |
| 2043 | tcb0 = pu1_cliptab_cb[u1_bs]; |
| 2044 | tcr0 = pu1_cliptab_cr[u1_bs]; |
| 2045 | tcb = tcb0 + 1; |
| 2046 | tcr = tcr0 + 1; |
| 2047 | q0_u = pu1_src_temp_u[pos_q0]; |
| 2048 | q1_u = pu1_src_temp_u[pos_q1]; |
| 2049 | p0_u = pu1_src_temp_u[pos_p0]; |
| 2050 | p1_u = pu1_src_temp_u[pos_p1]; |
| 2051 | |
| 2052 | q0_v = pu1_src_temp_v[pos_q0]; |
| 2053 | q1_v = pu1_src_temp_v[pos_q1]; |
| 2054 | p0_v = pu1_src_temp_v[pos_p0]; |
| 2055 | p1_v = pu1_src_temp_v[pos_p1]; |
| 2056 | |
| 2057 | /* Filter Decision */ |
| 2058 | if((ABS(p0_u - q0_u) < alpha_cb) && |
| 2059 | (ABS(q1_u - q0_u) < beta_cb) && |
| 2060 | (ABS(p1_u - p0_u) < beta_cb)) |
| 2061 | { |
| 2062 | val = ((((q0_u - p0_u) << 2) + (p1_u - q1_u) + 4) >> 3); |
| 2063 | delta = CLIP3(-tcb, tcb, val); |
| 2064 | /* p0' */ |
| 2065 | val = p0_u + delta; |
| 2066 | pu1_src_temp_u[pos_p0] = CLIP_U8(val); |
| 2067 | /* q0' */ |
| 2068 | val = q0_u - delta; |
| 2069 | pu1_src_temp_u[pos_q0] = CLIP_U8(val); |
| 2070 | } |
| 2071 | |
| 2072 | /* Filter Decision */ |
| 2073 | if((ABS(p0_v - q0_v) < alpha_cr) && |
| 2074 | (ABS(q1_v - q0_v) < beta_cr) && |
| 2075 | (ABS(p1_v - p0_v) < beta_cr)) |
| 2076 | { |
| 2077 | val = ((((q0_v - p0_v) << 2) + (p1_v - q1_v) + 4) >> 3); |
| 2078 | delta = CLIP3(-tcr, tcr, val); |
| 2079 | /* p0' */ |
| 2080 | val = p0_v + delta; |
| 2081 | pu1_src_temp_v[pos_p0] = CLIP_U8(val); |
| 2082 | /* q0' */ |
| 2083 | val = q0_v - delta; |
| 2084 | pu1_src_temp_v[pos_q0] = CLIP_U8(val); |
| 2085 | } |
| 2086 | } |
| 2087 | } |