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 | ****************************************************************************** |
| 23 | * @file ih264e_distortion_metrics.c |
| 24 | * |
| 25 | * @brief |
| 26 | * This file contains definitions of routines that compute distortion |
| 27 | * between two macro/sub blocks of identical dimensions |
| 28 | * |
| 29 | * @author |
| 30 | * Ittiam |
| 31 | * |
| 32 | * @par List of Functions: |
| 33 | * - ime_sub_pel_compute_sad_16x16() |
| 34 | * - ime_calculate_sad4_prog() |
| 35 | * - ime_calculate_sad3_prog() |
| 36 | * - ime_calculate_sad2_prog() |
| 37 | * - ime_compute_sad_16x16() |
| 38 | * - ime_compute_sad_16x16_fast() |
| 39 | * - ime_compute_sad_16x16_ea8() |
| 40 | * - ime_compute_sad_8x8() |
| 41 | * - ime_compute_sad_4x4() |
| 42 | * - ime_compute_sad_16x8() |
| 43 | * - ime_compute_satqd_16x16_lumainter() |
| 44 | * - ime_compute_satqd_8x16_chroma() |
| 45 | * - ime_compute_satqd_16x16_lumaintra() |
| 46 | * |
| 47 | * |
| 48 | * @remarks |
| 49 | * None |
| 50 | * |
| 51 | ******************************************************************************* |
| 52 | */ |
| 53 | |
| 54 | /*****************************************************************************/ |
| 55 | /* File Includes */ |
| 56 | /*****************************************************************************/ |
| 57 | |
| 58 | /* System include files */ |
| 59 | #include <stdio.h> |
| 60 | #include <stdlib.h> |
| 61 | #include <string.h> |
| 62 | |
| 63 | /* User include files */ |
| 64 | #include "ime_typedefs.h" |
| 65 | #include "ime_defs.h" |
| 66 | #include "ime_macros.h" |
| 67 | #include "ime_statistics.h" |
| 68 | #include "ime_platform_macros.h" |
| 69 | #include "ime_distortion_metrics.h" |
| 70 | |
| 71 | |
| 72 | /*****************************************************************************/ |
| 73 | /* Function Definitions */ |
| 74 | /*****************************************************************************/ |
| 75 | |
| 76 | /** |
| 77 | ****************************************************************************** |
| 78 | * |
| 79 | * @brief computes distortion (SAD) at all subpel points about the src location |
| 80 | * |
| 81 | * @par Description |
| 82 | * This functions computes SAD at all points at a subpel distance from the |
| 83 | * current source location. |
| 84 | * |
| 85 | * @param[in] pu1_src |
| 86 | * UWORD8 pointer to the source |
| 87 | * |
| 88 | * @param[out] pu1_ref_half_x |
| 89 | * UWORD8 pointer to half pel buffer |
| 90 | * |
| 91 | * @param[out] pu1_ref_half_y |
| 92 | * UWORD8 pointer to half pel buffer |
| 93 | * |
| 94 | * @param[out] pu1_ref_half_xy |
| 95 | * UWORD8 pointer to half pel buffer |
| 96 | * |
| 97 | * @param[in] src_strd |
| 98 | * integer source stride |
| 99 | * |
| 100 | * @param[in] ref_strd |
| 101 | * integer ref stride |
| 102 | * |
| 103 | * @param[out] pi4_sad |
| 104 | * integer evaluated sad |
| 105 | * pi4_sad[0] - half x |
| 106 | * pi4_sad[1] - half x - 1 |
| 107 | * pi4_sad[2] - half y |
| 108 | * pi4_sad[3] - half y - 1 |
| 109 | * pi4_sad[4] - half xy |
| 110 | * pi4_sad[5] - half xy - 1 |
| 111 | * pi4_sad[6] - half xy - strd |
| 112 | * pi4_sad[7] - half xy - 1 - strd |
| 113 | * |
| 114 | * @remarks |
| 115 | * |
| 116 | ****************************************************************************** |
| 117 | */ |
| 118 | void ime_sub_pel_compute_sad_16x16(UWORD8 *pu1_src, |
| 119 | UWORD8 *pu1_ref_half_x, |
| 120 | UWORD8 *pu1_ref_half_y, |
| 121 | UWORD8 *pu1_ref_half_xy, |
| 122 | WORD32 src_strd, |
| 123 | WORD32 ref_strd, |
| 124 | WORD32 *pi4_sad) |
| 125 | { |
| 126 | UWORD8 *pu1_ref_half_x_left = pu1_ref_half_x - 1; |
| 127 | UWORD8 *pu1_ref_half_y_top = pu1_ref_half_y - ref_strd; |
| 128 | UWORD8 *pu1_ref_half_xy_left = pu1_ref_half_xy - 1; |
| 129 | UWORD8 *pu1_ref_half_xy_top = pu1_ref_half_xy - ref_strd; |
| 130 | UWORD8 *pu1_ref_half_xy_top_left = pu1_ref_half_xy - ref_strd - 1; |
| 131 | |
| 132 | WORD32 row, col; |
| 133 | |
| 134 | memset(pi4_sad, 0, 8 * sizeof(WORD32)); |
| 135 | |
| 136 | for(row = 0; row < MB_SIZE; row++) |
| 137 | { |
| 138 | for(col = 0; col < MB_SIZE; col++) |
| 139 | { |
| 140 | WORD32 src; |
| 141 | WORD32 diff; |
| 142 | |
| 143 | src = pu1_src[col]; |
| 144 | |
| 145 | diff = src - pu1_ref_half_x[col]; |
| 146 | pi4_sad[0] += ABS(diff); |
| 147 | |
| 148 | diff = src - pu1_ref_half_x_left[col]; |
| 149 | pi4_sad[1] += ABS(diff); |
| 150 | |
| 151 | diff = src - pu1_ref_half_y[col]; |
| 152 | pi4_sad[2] += ABS(diff); |
| 153 | |
| 154 | diff = src - pu1_ref_half_y_top[col]; |
| 155 | pi4_sad[3] += ABS(diff); |
| 156 | |
| 157 | diff = src - pu1_ref_half_xy[col]; |
| 158 | pi4_sad[4] += ABS(diff); |
| 159 | |
| 160 | diff = src - pu1_ref_half_xy_left[col]; |
| 161 | pi4_sad[5] += ABS(diff); |
| 162 | |
| 163 | diff = src - pu1_ref_half_xy_top[col]; |
| 164 | pi4_sad[6] += ABS(diff); |
| 165 | |
| 166 | diff = src - pu1_ref_half_xy_top_left[col]; |
| 167 | pi4_sad[7] += ABS(diff); |
| 168 | } |
| 169 | |
| 170 | pu1_src += src_strd; |
| 171 | |
| 172 | pu1_ref_half_x += ref_strd; |
| 173 | pu1_ref_half_x_left += ref_strd; |
| 174 | |
| 175 | pu1_ref_half_y += ref_strd; |
| 176 | pu1_ref_half_y_top += ref_strd; |
| 177 | |
| 178 | pu1_ref_half_xy += ref_strd; |
| 179 | pu1_ref_half_xy_left += ref_strd; |
| 180 | pu1_ref_half_xy_top += ref_strd; |
| 181 | pu1_ref_half_xy_top_left += ref_strd; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | ******************************************************************************* |
| 187 | * |
| 188 | * @brief compute sad |
| 189 | * |
| 190 | * @par Description: This function computes the sad at vertices of diamond grid |
| 191 | * centered at reference pointer and at unit distance from it. |
| 192 | * |
| 193 | * @param[in] pu1_ref |
| 194 | * UWORD8 pointer to the reference |
| 195 | * |
| 196 | * @param[out] pu1_src |
| 197 | * UWORD8 pointer to the source |
| 198 | * |
| 199 | * @param[in] ref_strd |
| 200 | * integer reference stride |
| 201 | * |
| 202 | * @param[in] src_strd |
| 203 | * integer source stride |
| 204 | * |
| 205 | * @param[out] pi4_sad |
| 206 | * pointer to integer array evaluated sad |
| 207 | * |
| 208 | * @returns sad at all evaluated vertexes |
| 209 | * |
| 210 | * @remarks none |
| 211 | * |
| 212 | ******************************************************************************* |
| 213 | */ |
| 214 | void ime_calculate_sad4_prog(UWORD8 *pu1_ref, |
| 215 | UWORD8 *pu1_src, |
| 216 | WORD32 ref_strd, |
| 217 | WORD32 src_strd, |
| 218 | WORD32 *pi4_sad) |
| 219 | { |
| 220 | |
| 221 | /* reference ptrs at unit 1 distance in diamond pattern centered at pu1_ref */ |
| 222 | UWORD8 *left_ptr = pu1_ref - 1; |
| 223 | UWORD8 *right_ptr = pu1_ref + 1; |
| 224 | UWORD8 *top_ptr = pu1_ref - ref_strd; |
| 225 | UWORD8 *bot_ptr = pu1_ref + ref_strd; |
| 226 | |
| 227 | /* temp var */ |
| 228 | WORD32 count2, count3; |
| 229 | UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE; |
| 230 | UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE; |
| 231 | |
| 232 | memset(pi4_sad, 0, 4 * sizeof(WORD32)); |
| 233 | |
| 234 | for(count2 = MB_SIZE; count2 > 0; count2--) |
| 235 | { |
| 236 | for(count3 = MB_SIZE; count3 > 0 ; count3--) |
| 237 | { |
| 238 | WORD32 src; |
| 239 | WORD32 diff; |
| 240 | |
| 241 | src = *pu1_src++; |
| 242 | |
| 243 | diff = src - *left_ptr++; |
| 244 | pi4_sad[0] += ABS(diff); |
| 245 | |
| 246 | diff = src - *right_ptr++; |
| 247 | pi4_sad[1] += ABS(diff); |
| 248 | |
| 249 | diff = src - *top_ptr++; |
| 250 | pi4_sad[2] += ABS(diff); |
| 251 | |
| 252 | diff = src - *bot_ptr++; |
| 253 | pi4_sad[3] += ABS(diff); |
| 254 | } |
| 255 | |
| 256 | bot_ptr += u4_ref_buf_offset; |
| 257 | left_ptr += u4_ref_buf_offset; |
| 258 | right_ptr += u4_ref_buf_offset; |
| 259 | top_ptr += u4_ref_buf_offset; |
| 260 | |
| 261 | pu1_src += u4_cur_buf_offset; |
| 262 | } |
| 263 | |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | ******************************************************************************* |
| 268 | * |
| 269 | * @brief compute sad |
| 270 | * |
| 271 | * @par Description: This function computes the sad at vertices of diamond grid |
| 272 | * centered at reference pointer and at unit distance from it. |
| 273 | * |
| 274 | * @param[in] pu1_ref1, pu1_ref2, pu1_ref3 |
| 275 | * UWORD8 pointer to the reference |
| 276 | * |
| 277 | * @param[out] pu1_src |
| 278 | * UWORD8 pointer to the source |
| 279 | * |
| 280 | * @param[in] ref_strd |
| 281 | * integer reference stride |
| 282 | * |
| 283 | * @param[in] src_strd |
| 284 | * integer source stride |
| 285 | * |
| 286 | * @param[out] pi4_sad |
| 287 | * pointer to integer array evaluated sad |
| 288 | * |
| 289 | * @returns sad at all evaluated vertexes |
| 290 | * |
| 291 | * @remarks none |
| 292 | * |
| 293 | ******************************************************************************* |
| 294 | */ |
| 295 | void ime_calculate_sad3_prog(UWORD8 *pu1_ref1, |
| 296 | UWORD8 *pu1_ref2, |
| 297 | UWORD8 *pu1_ref3, |
| 298 | UWORD8 *pu1_src, |
| 299 | WORD32 ref_strd, |
| 300 | WORD32 src_strd, |
| 301 | WORD32 *pi4_sad) |
| 302 | { |
| 303 | /* temp var */ |
| 304 | WORD32 i; |
| 305 | UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE; |
| 306 | UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE; |
| 307 | |
| 308 | for(i = 16; i > 0; i--) |
| 309 | { |
| 310 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 311 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 312 | USADA8(pu1_src, pu1_ref3, pi4_sad[2]); |
| 313 | pu1_src += 4; |
| 314 | pu1_ref1 += 4; |
| 315 | pu1_ref2 += 4; |
| 316 | pu1_ref3 += 4; |
| 317 | |
| 318 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 319 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 320 | USADA8(pu1_src, pu1_ref3, pi4_sad[2]); |
| 321 | pu1_src += 4; |
| 322 | pu1_ref1 += 4; |
| 323 | pu1_ref2 += 4; |
| 324 | pu1_ref3 += 4; |
| 325 | |
| 326 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 327 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 328 | USADA8(pu1_src, pu1_ref3, pi4_sad[2]); |
| 329 | pu1_src += 4; |
| 330 | pu1_ref1 += 4; |
| 331 | pu1_ref2 += 4; |
| 332 | pu1_ref3 += 4; |
| 333 | |
| 334 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 335 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 336 | USADA8(pu1_src, pu1_ref3, pi4_sad[2]); |
| 337 | pu1_src += 4; |
| 338 | pu1_ref1 += 4; |
| 339 | pu1_ref2 += 4; |
| 340 | pu1_ref3 += 4; |
| 341 | |
| 342 | pu1_src += u4_cur_buf_offset; |
| 343 | pu1_ref1 += u4_ref_buf_offset; |
| 344 | pu1_ref2 += u4_ref_buf_offset; |
| 345 | pu1_ref3 += u4_ref_buf_offset; |
| 346 | } |
| 347 | |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | ******************************************************************************* |
| 352 | * |
| 353 | * @brief compute sad |
| 354 | * |
| 355 | * @par Description: This function computes the sad at vertices of diamond grid |
| 356 | * centered at reference pointer and at unit distance from it. |
| 357 | * |
| 358 | * @param[in] pu1_ref1, pu1_ref2 |
| 359 | * UWORD8 pointer to the reference |
| 360 | * |
| 361 | * @param[out] pu1_src |
| 362 | * UWORD8 pointer to the source |
| 363 | * |
| 364 | * @param[in] ref_strd |
| 365 | * integer reference stride |
| 366 | * |
| 367 | * @param[in] src_strd |
| 368 | * integer source stride |
| 369 | * |
| 370 | * @param[out] pi4_sad |
| 371 | * pointer to integer array evaluated sad |
| 372 | * |
| 373 | * @returns sad at all evaluated vertexes |
| 374 | * |
| 375 | * @remarks none |
| 376 | * |
| 377 | ******************************************************************************* |
| 378 | */ |
| 379 | void ime_calculate_sad2_prog(UWORD8 *pu1_ref1, |
| 380 | UWORD8 *pu1_ref2, |
| 381 | UWORD8 *pu1_src, |
| 382 | WORD32 ref_strd, |
| 383 | WORD32 src_strd, |
| 384 | WORD32 *pi4_sad) |
| 385 | { |
| 386 | /* temp var */ |
| 387 | WORD32 i; |
| 388 | UWORD32 u4_ref_buf_offset = ref_strd - MB_SIZE; |
| 389 | UWORD32 u4_cur_buf_offset = src_strd - MB_SIZE; |
| 390 | |
| 391 | for(i = 16; i > 0; i--) |
| 392 | { |
| 393 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 394 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 395 | pu1_src += 4; |
| 396 | pu1_ref1 += 4; |
| 397 | pu1_ref2 += 4; |
| 398 | |
| 399 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 400 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 401 | pu1_src += 4; |
| 402 | pu1_ref1 += 4; |
| 403 | pu1_ref2 += 4; |
| 404 | |
| 405 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 406 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 407 | pu1_src += 4; |
| 408 | pu1_ref1 += 4; |
| 409 | pu1_ref2 += 4; |
| 410 | |
| 411 | USADA8(pu1_src, pu1_ref1, pi4_sad[0]); |
| 412 | USADA8(pu1_src, pu1_ref2, pi4_sad[1]); |
| 413 | pu1_src += 4; |
| 414 | pu1_ref1 += 4; |
| 415 | pu1_ref2 += 4; |
| 416 | |
| 417 | pu1_src += u4_cur_buf_offset; |
| 418 | pu1_ref1 += u4_ref_buf_offset; |
| 419 | pu1_ref2 += u4_ref_buf_offset; |
| 420 | } |
| 421 | |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | ****************************************************************************** |
| 426 | * |
| 427 | * @brief computes distortion (SAD) between 2 16x16 blocks |
| 428 | * |
| 429 | * @par Description |
| 430 | * This functions computes SAD between 2 16x16 blocks. There is a provision |
| 431 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 432 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 433 | * |
| 434 | * @param[in] pu1_src |
| 435 | * UWORD8 pointer to the source |
| 436 | * |
| 437 | * @param[out] pu1_dst |
| 438 | * UWORD8 pointer to the destination |
| 439 | * |
| 440 | * @param[in] src_strd |
| 441 | * integer source stride |
| 442 | * |
| 443 | * @param[in] dst_strd |
| 444 | * integer destination stride |
| 445 | * |
| 446 | * @param[in] i4_max_sad |
| 447 | * integer maximum allowed distortion |
| 448 | * |
| 449 | * @param[out] pi4_mb_distortion |
| 450 | * integer evaluated sad |
| 451 | * |
| 452 | * @remarks |
| 453 | * |
| 454 | ****************************************************************************** |
| 455 | */ |
| 456 | void ime_compute_sad_16x16(UWORD8 *pu1_src, |
| 457 | UWORD8 *pu1_est, |
| 458 | WORD32 src_strd, |
| 459 | WORD32 est_strd, |
| 460 | WORD32 i4_max_sad, |
| 461 | WORD32 *pi4_mb_distortion) |
| 462 | { |
| 463 | WORD32 i4_sad = 0; |
| 464 | UWORD32 u4_src_offset = src_strd - 16; |
| 465 | UWORD32 u4_est_offset = est_strd - 16; |
| 466 | UWORD32 i; |
| 467 | |
| 468 | GATHER_16x16_SAD_EE_STATS(gu4_16x16_sad_ee_stats, 16); |
| 469 | |
| 470 | for(i = 16; i > 0; i--) |
| 471 | { |
| 472 | USADA8(pu1_src, pu1_est, i4_sad); |
| 473 | pu1_src += 4; |
| 474 | pu1_est += 4; |
| 475 | |
| 476 | USADA8(pu1_src, pu1_est, i4_sad); |
| 477 | pu1_src += 4; |
| 478 | pu1_est += 4; |
| 479 | |
| 480 | USADA8(pu1_src, pu1_est, i4_sad); |
| 481 | pu1_src += 4; |
| 482 | pu1_est += 4; |
| 483 | |
| 484 | USADA8(pu1_src, pu1_est, i4_sad); |
| 485 | pu1_src += 4; |
| 486 | pu1_est += 4; |
| 487 | |
| 488 | /* early exit */ |
| 489 | if(i4_max_sad < i4_sad) |
| 490 | { |
| 491 | |
| 492 | GATHER_16x16_SAD_EE_STATS(gu4_16x16_sad_ee_stats, 16-i); |
| 493 | |
| 494 | *pi4_mb_distortion = i4_sad; |
| 495 | return ; |
| 496 | } |
| 497 | pu1_src += u4_src_offset; |
| 498 | pu1_est += u4_est_offset; |
| 499 | } |
| 500 | |
| 501 | *pi4_mb_distortion = i4_sad; |
| 502 | return ; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | ****************************************************************************** |
| 507 | * |
| 508 | * @brief computes distortion (SAD) between 2 16x16 blocks (fast mode) |
| 509 | * |
| 510 | * @par Description |
| 511 | * This functions computes SAD between 2 16x16 blocks. There is a provision |
| 512 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 513 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 514 | * |
| 515 | * @param[in] pu1_src |
| 516 | * UWORD8 pointer to the source |
| 517 | * |
| 518 | * @param[out] pu1_dst |
| 519 | * UWORD8 pointer to the destination |
| 520 | * |
| 521 | * @param[in] src_strd |
| 522 | * integer source stride |
| 523 | * |
| 524 | * @param[in] dst_strd |
| 525 | * integer destination stride |
| 526 | * |
| 527 | * @param[in] i4_max_sad |
| 528 | * integer maximum allowed distortion |
| 529 | * |
| 530 | * @param[out] pi4_mb_distortion |
| 531 | * integer evaluated sad |
| 532 | * |
| 533 | * @remarks |
| 534 | * |
| 535 | ****************************************************************************** |
| 536 | */ |
| 537 | void ime_compute_sad_16x16_fast(UWORD8 *pu1_src, |
| 538 | UWORD8 *pu1_est, |
| 539 | WORD32 src_strd, |
| 540 | WORD32 est_strd, |
| 541 | WORD32 i4_max_sad, |
| 542 | WORD32 *pi4_mb_distortion) |
| 543 | { |
| 544 | |
| 545 | WORD32 i4_sad = 0; |
| 546 | UWORD32 u4_src_offset = 2 * src_strd - 16; |
| 547 | UWORD32 u4_est_offset = 2 * est_strd - 16; |
| 548 | UWORD32 i; |
| 549 | |
| 550 | UNUSED(i4_max_sad); |
| 551 | |
| 552 | for(i = 16; i > 0; i-= 2) |
| 553 | { |
| 554 | USADA8(pu1_src, pu1_est, i4_sad); |
| 555 | pu1_src += 4; |
| 556 | pu1_est += 4; |
| 557 | |
| 558 | USADA8(pu1_src, pu1_est, i4_sad); |
| 559 | pu1_src += 4; |
| 560 | pu1_est += 4; |
| 561 | |
| 562 | USADA8(pu1_src, pu1_est, i4_sad); |
| 563 | pu1_src += 4; |
| 564 | pu1_est += 4; |
| 565 | |
| 566 | USADA8(pu1_src, pu1_est, i4_sad); |
| 567 | pu1_src += 4; |
| 568 | pu1_est += 4; |
| 569 | |
| 570 | pu1_src += u4_src_offset; |
| 571 | pu1_est += u4_est_offset; |
| 572 | } |
| 573 | |
| 574 | *pi4_mb_distortion = (i4_sad << 1); |
| 575 | return ; |
| 576 | } |
| 577 | |
| 578 | /** |
| 579 | ****************************************************************************** |
| 580 | * |
| 581 | * @brief computes distortion (SAD) between 2 8x8 blocks |
| 582 | * |
| 583 | * @par Description |
| 584 | * This functions computes SAD between 2 8x8 blocks. There is a provision |
| 585 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 586 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 587 | * |
| 588 | * @param[in] pu1_src |
| 589 | * UWORD8 pointer to the source |
| 590 | * |
| 591 | * @param[out] pu1_dst |
| 592 | * UWORD8 pointer to the destination |
| 593 | * |
| 594 | * @param[in] src_strd |
| 595 | * integer source stride |
| 596 | * |
| 597 | * @param[in] dst_strd |
| 598 | * integer destination stride |
| 599 | * |
| 600 | * @param[in] u4_max_sad |
| 601 | * integer maximum allowed distortion |
| 602 | * |
| 603 | * @param[out] i4_sad |
| 604 | * integer evaluated sad |
| 605 | * |
| 606 | * @remarks |
| 607 | * |
| 608 | ****************************************************************************** |
| 609 | */ |
| 610 | |
| 611 | void ime_compute_sad_8x8(UWORD8 *pu1_src, |
| 612 | UWORD8 *pu1_est, |
| 613 | WORD32 src_strd, |
| 614 | WORD32 est_strd, |
| 615 | WORD32 i4_max_sad, |
| 616 | WORD32 *pi4_mb_distortion) |
| 617 | { |
| 618 | WORD32 i4_sad = 0; |
| 619 | UWORD32 u4_src_offset = src_strd - 8; |
| 620 | UWORD32 u4_est_offset = est_strd - 8; |
| 621 | UWORD32 i, j; |
| 622 | WORD16 temp; |
| 623 | |
| 624 | for(i = 8; i > 0; i--) |
| 625 | { |
| 626 | for(j = 8; j > 0; j--) |
| 627 | { |
| 628 | /* SAD */ |
| 629 | temp = *pu1_src++ - *pu1_est++; |
| 630 | i4_sad += ABS(temp); |
| 631 | } |
| 632 | /* early exit */ |
| 633 | if(i4_max_sad < i4_sad) |
| 634 | { |
| 635 | *pi4_mb_distortion = i4_sad; |
| 636 | return; |
| 637 | } |
| 638 | pu1_src += u4_src_offset; |
| 639 | pu1_est += u4_est_offset; |
| 640 | } |
| 641 | *pi4_mb_distortion = i4_sad; |
| 642 | } |
| 643 | |
| 644 | /** |
| 645 | ****************************************************************************** |
| 646 | * |
| 647 | * @brief computes distortion (SAD) between 2 4x4 blocks |
| 648 | * |
| 649 | * @par Description |
| 650 | * This functions computes SAD between 2 4x4 blocks. There is a provision |
| 651 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 652 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 653 | * |
| 654 | * @param[in] pu1_src |
| 655 | * UWORD8 pointer to the source |
| 656 | * |
| 657 | * @param[out] pu1_dst |
| 658 | * UWORD8 pointer to the destination |
| 659 | * |
| 660 | * @param[in] src_strd |
| 661 | * integer source stride |
| 662 | * |
| 663 | * @param[in] dst_strd |
| 664 | * integer destination stride |
| 665 | * |
| 666 | * @param[in] u4_max_sad |
| 667 | * integer maximum allowed distortion |
| 668 | * |
| 669 | * @param[out] pi4_mb_distortion |
| 670 | * integer evaluated sad |
| 671 | * |
| 672 | * @remarks |
| 673 | * |
| 674 | ****************************************************************************** |
| 675 | */ |
| 676 | void ime_compute_sad_4x4 |
| 677 | ( |
| 678 | UWORD8 *pu1_src, |
| 679 | UWORD8 *pu1_est, |
| 680 | WORD32 src_strd, |
| 681 | WORD32 est_strd, |
| 682 | WORD32 i4_max_sad, |
| 683 | WORD32 *pi4_mb_distortion |
| 684 | ) |
| 685 | { |
| 686 | WORD32 i4_sad = 0; |
| 687 | |
| 688 | UNUSED(i4_max_sad); |
| 689 | |
| 690 | USADA8(pu1_src, pu1_est, i4_sad); |
| 691 | pu1_src += src_strd; |
| 692 | pu1_est += est_strd; |
| 693 | |
| 694 | USADA8(pu1_src, pu1_est, i4_sad); |
| 695 | pu1_src += src_strd; |
| 696 | pu1_est += est_strd; |
| 697 | |
| 698 | USADA8(pu1_src, pu1_est, i4_sad); |
| 699 | pu1_src += src_strd; |
| 700 | pu1_est += est_strd; |
| 701 | |
| 702 | USADA8(pu1_src, pu1_est, i4_sad); |
| 703 | *pi4_mb_distortion = i4_sad; |
| 704 | } |
| 705 | |
| 706 | |
| 707 | /** |
| 708 | ****************************************************************************** |
| 709 | * |
| 710 | * @brief computes distortion (SAD) between 2 16x8 blocks |
| 711 | * |
| 712 | * |
| 713 | * @par Description |
| 714 | * This functions computes SAD between 2 16x8 blocks. There is a provision |
| 715 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 716 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 717 | * |
| 718 | * @param[in] pu1_src |
| 719 | * UWORD8 pointer to the source |
| 720 | * |
| 721 | * @param[out] pu1_dst |
| 722 | * UWORD8 pointer to the destination |
| 723 | * |
| 724 | * @param[in] src_strd |
| 725 | * integer source stride |
| 726 | * |
| 727 | * @param[in] dst_strd |
| 728 | * integer destination stride |
| 729 | * |
| 730 | * @param[in] u4_max_sad |
| 731 | * integer maximum allowed distortion |
| 732 | * |
| 733 | * @param[out] pi4_mb_distortion |
| 734 | * integer evaluated sad |
| 735 | * |
| 736 | * @remarks |
| 737 | * |
| 738 | ****************************************************************************** |
| 739 | */ |
| 740 | void ime_compute_sad_16x8 |
| 741 | ( |
| 742 | UWORD8 *pu1_src, |
| 743 | UWORD8 *pu1_est, |
| 744 | WORD32 src_strd, |
| 745 | WORD32 est_strd, |
| 746 | WORD32 i4_max_sad, |
| 747 | WORD32 *pi4_mb_distortion |
| 748 | ) |
| 749 | { |
| 750 | WORD32 i4_sad = 0; |
| 751 | UWORD32 u4_src_offset = src_strd - 16; |
| 752 | UWORD32 u4_est_offset = est_strd - 16; |
| 753 | UWORD32 i, j; |
| 754 | WORD16 temp; |
| 755 | |
| 756 | GATHER_16x8_SAD_EE_STATS(gu4_16x8_sad_ee_stats, 8); |
| 757 | |
| 758 | for(i = 8; i > 0; i--) |
| 759 | { |
| 760 | for(j = 16; j > 0; j--) |
| 761 | { |
| 762 | /* SAD */ |
| 763 | temp = *pu1_src++ - *pu1_est++; |
| 764 | i4_sad += ABS(temp); |
| 765 | } |
| 766 | /* early exit */ |
| 767 | if(i4_max_sad < i4_sad) |
| 768 | { |
| 769 | |
| 770 | GATHER_16x8_SAD_EE_STATS(gu4_16x8_sad_ee_stats, 8-i); |
| 771 | |
| 772 | *pi4_mb_distortion = i4_sad; |
| 773 | |
| 774 | return; |
| 775 | } |
| 776 | pu1_src += u4_src_offset; |
| 777 | pu1_est += u4_est_offset; |
| 778 | } |
| 779 | |
| 780 | *pi4_mb_distortion = i4_sad; |
| 781 | return; |
| 782 | |
| 783 | } |
| 784 | |
| 785 | /** |
| 786 | ****************************************************************************** |
| 787 | * |
| 788 | * @brief computes distortion (SAD) between 2 16x16 blocks |
| 789 | * |
| 790 | * @par Description |
| 791 | * This functions computes SAD between 2 16x16 blocks. There is a provision |
| 792 | * for early exit if the up-to computed SAD exceeds maximum allowed SAD. To |
| 793 | * compute the distortion of the entire block set u4_max_sad to USHRT_MAX. |
| 794 | * |
| 795 | * @param[in] pu1_src |
| 796 | * UWORD8 pointer to the source |
| 797 | * |
| 798 | * @param[out] pu1_dst |
| 799 | * UWORD8 pointer to the destination |
| 800 | * |
| 801 | * @param[in] src_strd |
| 802 | * integer source stride |
| 803 | * |
| 804 | * @param[in] dst_strd |
| 805 | * integer destination stride |
| 806 | * |
| 807 | * @param[in] i4_max_sad |
| 808 | * integer maximum allowed distortion |
| 809 | * |
| 810 | * @param[out] pi4_mb_distortion |
| 811 | * integer evaluated sad |
| 812 | * |
| 813 | * @remarks |
| 814 | * |
| 815 | ****************************************************************************** |
| 816 | */ |
| 817 | void ime_compute_sad_16x16_ea8(UWORD8 *pu1_src, |
| 818 | UWORD8 *pu1_est, |
| 819 | WORD32 src_strd, |
| 820 | WORD32 est_strd, |
| 821 | WORD32 i4_max_sad, |
| 822 | WORD32 *pi4_mb_distortion) |
| 823 | { |
| 824 | WORD32 i4_sad = 0; |
| 825 | UWORD32 u4_src_offset = src_strd - 16; |
| 826 | UWORD32 u4_est_offset = est_strd - 16; |
| 827 | UWORD32 i, j; |
| 828 | WORD16 temp; |
| 829 | UWORD8 *pu1_src_temp = pu1_src + src_strd; |
| 830 | UWORD8 *pu1_est_temp = pu1_est + est_strd; |
| 831 | |
| 832 | for(i = 16; i > 0; i -= 2) |
| 833 | { |
| 834 | for(j = 16; j > 0; j--) |
| 835 | { |
| 836 | /* SAD */ |
| 837 | temp = *pu1_src++ - *pu1_est++; |
| 838 | i4_sad += ABS(temp); |
| 839 | } |
| 840 | |
| 841 | pu1_src += (u4_src_offset + src_strd); |
| 842 | pu1_est += (u4_est_offset + est_strd); |
| 843 | |
| 844 | } |
| 845 | |
| 846 | /* early exit */ |
| 847 | if(i4_max_sad < i4_sad) |
| 848 | { |
| 849 | *pi4_mb_distortion = i4_sad; |
| 850 | return; |
| 851 | } |
| 852 | |
| 853 | pu1_src = pu1_src_temp; |
| 854 | pu1_est = pu1_est_temp; |
| 855 | |
| 856 | for(i = 16; i > 0; i -= 2) |
| 857 | { |
| 858 | for(j = 16; j > 0; j--) |
| 859 | { |
| 860 | /* SAD */ |
| 861 | temp = *pu1_src++ - *pu1_est++; |
| 862 | i4_sad += ABS(temp); |
| 863 | } |
| 864 | |
| 865 | pu1_src += u4_src_offset + src_strd; |
| 866 | pu1_est += u4_est_offset + est_strd; |
| 867 | } |
| 868 | |
| 869 | *pi4_mb_distortion = i4_sad; |
| 870 | return; |
| 871 | } |
| 872 | |
| 873 | |
| 874 | /** |
| 875 | ******************************************************************************* |
| 876 | * |
| 877 | * @brief This function computes SAD between two 16x16 blocks |
| 878 | * It also computes if the block will be zero after H264 transform and quant for |
| 879 | * Intra 16x16 blocks |
| 880 | * |
| 881 | * @param[in] pu1_src |
| 882 | * UWORD8 pointer to the source |
| 883 | * |
| 884 | * @param[out] pu1_dst |
| 885 | * UWORD8 pointer to the destination |
| 886 | * |
| 887 | * @param[in] src_strd |
| 888 | * integer source stride |
| 889 | * |
| 890 | * @param[in] dst_strd |
| 891 | * integer destination stride |
| 892 | * |
| 893 | * @param[in] pu2_thrsh |
| 894 | * Threshold for each element of transofrmed quantized block |
| 895 | * |
| 896 | * @param[out] pi4_mb_distortion |
| 897 | * integer evaluated sad |
| 898 | * |
| 899 | * @param[out] pu4_is_zero |
| 900 | * Poitner to store if the block is zero after transform and quantization |
| 901 | * |
| 902 | * @remarks |
| 903 | * |
| 904 | ****************************************************************************** |
| 905 | */ |
| 906 | void ime_compute_satqd_16x16_lumainter(UWORD8 *pu1_src, |
| 907 | UWORD8 *pu1_est, |
| 908 | WORD32 src_strd, |
| 909 | WORD32 est_strd, |
| 910 | UWORD16 *pu2_thrsh, |
| 911 | WORD32 *pi4_mb_distortion, |
| 912 | UWORD32 *pu4_is_non_zero) |
| 913 | { |
| 914 | UWORD32 i,j; |
| 915 | WORD16 s1,s2,s3,s4,sad_1,sad_2,ls1,ls2,ls3,ls4,ls5,ls6,ls7,ls8; |
| 916 | UWORD8 *pu1_src_lp,*pu1_est_lp; |
| 917 | UWORD32 sad = 0; |
| 918 | |
| 919 | (*pi4_mb_distortion) = 0; |
| 920 | for(i=0;i<4;i++) |
| 921 | { |
| 922 | for(j=0;j<4;j++) |
| 923 | { |
| 924 | pu1_src_lp = pu1_src + 4*j; |
| 925 | pu1_est_lp = pu1_est + 4*j; |
| 926 | |
| 927 | s1 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 928 | s4 = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 929 | |
| 930 | pu1_src_lp += src_strd; |
| 931 | pu1_est_lp += est_strd; |
| 932 | |
| 933 | s2 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 934 | s3 = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 935 | |
| 936 | pu1_src_lp += src_strd; |
| 937 | pu1_est_lp += est_strd; |
| 938 | |
| 939 | s2 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 940 | s3 += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 941 | |
| 942 | pu1_src_lp += src_strd; |
| 943 | pu1_est_lp += est_strd; |
| 944 | |
| 945 | s1 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 946 | s4 += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 947 | |
| 948 | sad_1 = s1+s2+s3+s4; |
| 949 | |
| 950 | if(sad == 0) |
| 951 | { |
| 952 | sad_2 = sad_1<<1; |
| 953 | |
| 954 | ls1 = sad_2 -(s2 + s3); |
| 955 | ls2 = sad_2 -(s1 + s4); |
| 956 | ls3 = sad_2 -(s3 + s4); |
| 957 | ls4 = sad_2 -(s3 - (s1<<1)); |
| 958 | ls5 = sad_2 -(s4 - (s2<<1)); |
| 959 | ls6 = sad_2 -(s1 + s2); |
| 960 | ls7 = sad_2 -(s2 - (s4<<1)); |
| 961 | ls8 = sad_2 -(s1 - (s3<<1)); |
| 962 | |
| 963 | if( |
| 964 | pu2_thrsh[8] <= sad_1 || |
| 965 | pu2_thrsh[0] <= ls2 || |
| 966 | pu2_thrsh[1] <= ls1 || |
| 967 | pu2_thrsh[2] <= ls8 || |
| 968 | pu2_thrsh[3] <= ls5 || |
| 969 | |
| 970 | pu2_thrsh[4] <= ls6 || |
| 971 | pu2_thrsh[5] <= ls3 || |
| 972 | pu2_thrsh[6] <= ls7 || |
| 973 | pu2_thrsh[7] <= ls4 |
| 974 | |
| 975 | )sad = 1; |
| 976 | } |
| 977 | (*pi4_mb_distortion) += sad_1; |
| 978 | } |
| 979 | pu1_src += (src_strd *4); |
| 980 | pu1_est += (est_strd *4); |
| 981 | } |
| 982 | *pu4_is_non_zero = sad; |
| 983 | } |
| 984 | |
| 985 | |
| 986 | /** |
| 987 | ****************************************************************************** |
| 988 | * |
| 989 | * @brief computes distortion (SAD and SAQTD) between 2 16x8 (interleaved) chroma blocks |
| 990 | * |
| 991 | * |
| 992 | * @par Description |
| 993 | * This functions computes SAD between2 16x8 chroma blocks(interleaved) |
| 994 | * It also checks if the SATDD(Sum of absolute transformed wuqntized differnce beteern the blocks |
| 995 | * If SAQTD is zero, it gives back zero |
| 996 | * Other wise sad is retrned |
| 997 | * There is no provison for early exit |
| 998 | * |
| 999 | * The transform done here is the transform for chroma blocks in H264 |
| 1000 | * |
| 1001 | * @param[in] pu1_src |
| 1002 | * UWORD8 pointer to the source |
| 1003 | * |
| 1004 | * @param[out] pu1_dst |
| 1005 | * UWORD8 pointer to the destination |
| 1006 | * |
| 1007 | * @param[in] src_strd |
| 1008 | * integer source stride |
| 1009 | * |
| 1010 | * @param[in] dst_strd |
| 1011 | * integer destination stride |
| 1012 | * |
| 1013 | * @param[in] pu2_thrsh |
| 1014 | * Threshold for each element of transofrmed quantized block |
| 1015 | * |
| 1016 | * @param[out] pi4_mb_distortion |
| 1017 | * integer evaluated sad |
| 1018 | * |
| 1019 | * @remarks |
| 1020 | * Fucntion code is nit updated. |
| 1021 | * Will require debugging and minor modifications |
| 1022 | * |
| 1023 | ****************************************************************************** |
| 1024 | */ |
| 1025 | void ime_compute_satqd_8x16_chroma(UWORD8 *pu1_src, |
| 1026 | UWORD8 *pu1_est, |
| 1027 | WORD32 src_strd, |
| 1028 | WORD32 est_strd, |
| 1029 | WORD32 max_sad, |
| 1030 | UWORD16 *thrsh) |
| 1031 | { |
| 1032 | WORD32 i,j,plane; |
| 1033 | WORD16 s1,s2,s3,s4,sad_1,sad_2,ls1,ls2,ls3,ls4,ls5,ls6,ls7,ls8; |
| 1034 | UWORD8 *pu1_src_lp,*pu1_est_lp,*pu1_src_plane,*pu1_est_plane; |
| 1035 | WORD32 sad =0; |
| 1036 | UNUSED(max_sad); |
| 1037 | |
| 1038 | pu1_src_plane = pu1_src; |
| 1039 | pu1_est_plane = pu1_est; |
| 1040 | |
| 1041 | for(plane =0;plane<2;plane++) |
| 1042 | { |
| 1043 | for(i=0;i<4;i++) |
| 1044 | { |
| 1045 | for(j=0;j<4;j++) |
| 1046 | { |
| 1047 | pu1_src_lp = pu1_src + 8*j; |
| 1048 | pu1_est_lp = pu1_est + 8*j; |
| 1049 | |
| 1050 | s1 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]); |
| 1051 | s4 = ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]); |
| 1052 | |
| 1053 | pu1_src_lp += src_strd; |
| 1054 | pu1_est_lp += est_strd; |
| 1055 | |
| 1056 | s2 = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]); |
| 1057 | s3 = ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]); |
| 1058 | |
| 1059 | pu1_src_lp += src_strd; |
| 1060 | pu1_est_lp += est_strd; |
| 1061 | |
| 1062 | s2 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]); |
| 1063 | s3 += ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]); |
| 1064 | |
| 1065 | pu1_src_lp += src_strd; |
| 1066 | pu1_est_lp += est_strd; |
| 1067 | |
| 1068 | s1 += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[6] - (WORD16)pu1_est_lp[6]); |
| 1069 | s4 += ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2])+ ABS((WORD16)pu1_src_lp[4] - (WORD16)pu1_est_lp[4]); |
| 1070 | |
| 1071 | sad_1 = s1+s2+s3+s4; |
| 1072 | sad_2 = sad_1<<1; |
| 1073 | |
| 1074 | ls1 = sad_2 -(s2 + s3); |
| 1075 | ls2 = sad_2 -(s1 + s4); |
| 1076 | ls3 = sad_2 -(s3 + s4); |
| 1077 | ls4 = sad_2 -(s3 - (s1<<1)); |
| 1078 | ls5 = sad_2 -(s4 - (s2<<1)); |
| 1079 | ls6 = sad_2 -(s1 + s2); |
| 1080 | ls7 = sad_2 -(s2 - (s4<<1)); |
| 1081 | ls8 = sad_2 -(s1 - (s3<<1)); |
| 1082 | |
| 1083 | if( |
| 1084 | //thrsh[0] > sad_1 && Chroma Dc is checked later |
| 1085 | thrsh[1] > ls1 && |
| 1086 | thrsh[2] > sad_1 && |
| 1087 | thrsh[3] > ls2 && |
| 1088 | |
| 1089 | thrsh[4] > ls3 && |
| 1090 | thrsh[5] > ls4 && |
| 1091 | thrsh[6] > ls3 && |
| 1092 | thrsh[7] > ls5 && |
| 1093 | |
| 1094 | thrsh[8] > sad_1 && |
| 1095 | thrsh[9] > ls1 && |
| 1096 | thrsh[10]> sad_1 && |
| 1097 | thrsh[11]> ls2 && |
| 1098 | |
| 1099 | thrsh[12]> ls6 && |
| 1100 | thrsh[13]> ls7 && |
| 1101 | thrsh[14]> ls6 && |
| 1102 | thrsh[15]> ls8 |
| 1103 | ) |
| 1104 | { |
| 1105 | /*set current sad to be zero*/ |
| 1106 | } |
| 1107 | else |
| 1108 | return ; |
| 1109 | |
| 1110 | sad += sad_1; |
| 1111 | } |
| 1112 | pu1_src += (src_strd *4); |
| 1113 | pu1_est += (est_strd *4); |
| 1114 | } |
| 1115 | if(sad < (thrsh[0]<<1))sad = 0; |
| 1116 | else return ; |
| 1117 | |
| 1118 | pu1_src = pu1_src_plane+1; |
| 1119 | pu1_est = pu1_est_plane+1; |
| 1120 | } |
| 1121 | return ; |
| 1122 | } |
| 1123 | |
| 1124 | |
| 1125 | /** |
| 1126 | ****************************************************************************** |
| 1127 | * |
| 1128 | * @brief computes distortion (SAD and SAQTD) between 2 16x16 blocks |
| 1129 | * |
| 1130 | * @par Description |
| 1131 | * This functions computes SAD between 2 16x16 blocks. |
| 1132 | * It also checks if the SATDD(Sum of absolute transformed wuqntized differnce beteern the blocks |
| 1133 | * If SAQTD is zero, it gives back zero |
| 1134 | * Other wise sad is retrned |
| 1135 | * There is no provison for early exit |
| 1136 | * |
| 1137 | * The transform done here is the transform for inter 16x16 blocks in H264 |
| 1138 | * |
| 1139 | * @param[in] pu1_src |
| 1140 | * UWORD8 pointer to the source |
| 1141 | * |
| 1142 | * @param[out] pu1_dst |
| 1143 | * UWORD8 pointer to the destination |
| 1144 | * |
| 1145 | * @param[in] src_strd |
| 1146 | * integer source stride |
| 1147 | * |
| 1148 | * @param[in] dst_strd |
| 1149 | * integer destination stride |
| 1150 | * |
| 1151 | * @param[in] pu2_thrsh |
| 1152 | * Threshold for each element of transofrmed quantized block |
| 1153 | * |
| 1154 | * @param[out] pi4_mb_distortion |
| 1155 | * integer evaluated sad |
| 1156 | * |
| 1157 | * @remarks |
| 1158 | * |
| 1159 | ****************************************************************************** |
| 1160 | */ |
| 1161 | void ime_compute_satqd_16x16_lumaintra(UWORD8 *pu1_src, |
| 1162 | UWORD8 *pu1_est, |
| 1163 | WORD32 src_strd, |
| 1164 | WORD32 est_strd, |
| 1165 | WORD32 max_sad, |
| 1166 | UWORD16 *thrsh, |
| 1167 | WORD32 *pi4_mb_distortion, |
| 1168 | UWORD8 *sig_nz_sad) |
| 1169 | { |
| 1170 | UWORD32 i,j; |
| 1171 | WORD16 s1[4],s2[4],s3[4],s4[4],sad[4]; |
| 1172 | UWORD8 *pu1_src_lp,*pu1_est_lp; |
| 1173 | UWORD8 *sig_sad_dc; |
| 1174 | UWORD32 nz_sad_sig = 0; |
| 1175 | UNUSED(max_sad); |
| 1176 | *pi4_mb_distortion =0; |
| 1177 | |
| 1178 | sig_sad_dc = sig_nz_sad; |
| 1179 | sig_nz_sad++; |
| 1180 | |
| 1181 | for(i=0;i<4;i++) |
| 1182 | { |
| 1183 | for(j=0;j<4;j++) |
| 1184 | { |
| 1185 | pu1_src_lp = pu1_src + 4*j; |
| 1186 | pu1_est_lp = pu1_est + 4*j; |
| 1187 | |
| 1188 | s1[j] = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 1189 | s4[j] = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 1190 | |
| 1191 | pu1_src_lp += src_strd; |
| 1192 | pu1_est_lp += est_strd; |
| 1193 | |
| 1194 | s2[j] = ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 1195 | s3[j] = ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 1196 | |
| 1197 | pu1_src_lp += src_strd; |
| 1198 | pu1_est_lp += est_strd; |
| 1199 | |
| 1200 | s2[j] += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 1201 | s3[j] += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 1202 | |
| 1203 | pu1_src_lp += src_strd; |
| 1204 | pu1_est_lp += est_strd; |
| 1205 | |
| 1206 | s1[j] += ABS((WORD16)pu1_src_lp[0] - (WORD16)pu1_est_lp[0])+ ABS((WORD16)pu1_src_lp[3] - (WORD16)pu1_est_lp[3]); |
| 1207 | s4[j] += ABS((WORD16)pu1_src_lp[1] - (WORD16)pu1_est_lp[1])+ ABS((WORD16)pu1_src_lp[2] - (WORD16)pu1_est_lp[2]); |
| 1208 | |
| 1209 | sad[j] = ((s1[j]+s2[j]+s3[j]+s4[j])<<1); |
| 1210 | } |
| 1211 | |
| 1212 | for(j=0;j<4;j++) |
| 1213 | { |
| 1214 | |
| 1215 | if( |
| 1216 | //thrsh[0] > (sad[j] >> 1) &&Dc goes in the other part |
| 1217 | thrsh[1] > (sad[j] -(s2[j] + s3[j])) && |
| 1218 | thrsh[2] > (sad[j]>>1) && |
| 1219 | thrsh[3] > (sad[j] -(s1[j] + s4[j])) && |
| 1220 | |
| 1221 | thrsh[4] > (sad[j] -(s3[j] + s4[j])) && |
| 1222 | thrsh[5] > (sad[j] -(s3[j] - (s1[j]<<1))) && |
| 1223 | thrsh[6] > (sad[j] -(s3[j] + s4[j])) && |
| 1224 | thrsh[7] > (sad[j] -(s4[j] - (s2[j]<<1))) && |
| 1225 | |
| 1226 | thrsh[8] > (sad[j]>>1) && |
| 1227 | thrsh[9] > (sad[j] -(s2[j] + s3[j])) && |
| 1228 | thrsh[10]> (sad[j]>>1) && |
| 1229 | thrsh[11]> (sad[j] -(s1[j] + s4[j])) && |
| 1230 | |
| 1231 | thrsh[12]> (sad[j] -(s1[j] + s2[j])) && |
| 1232 | thrsh[13]> (sad[j] -(s2[j] - (s4[j]<<1))) && |
| 1233 | thrsh[14]> (sad[j] -(s1[j] + s2[j])) && |
| 1234 | thrsh[15]> (sad[j] -(s1[j] - (s3[j]<<1))) |
| 1235 | ) |
| 1236 | { |
| 1237 | //sad[j] = 0; /*set current sad to be zero*/ |
| 1238 | sig_nz_sad[j] = 0;/*Signal that the sad is zero*/ |
| 1239 | } |
| 1240 | else |
| 1241 | { |
| 1242 | sig_nz_sad[j] = 1;/*signal that sad is non zero*/ |
| 1243 | nz_sad_sig = 1; |
| 1244 | } |
| 1245 | |
| 1246 | (*pi4_mb_distortion) += (sad[j]>>1); |
| 1247 | //if((*pi4_mb_distortion) >= max_sad)return; /*return or some thing*/ |
| 1248 | } |
| 1249 | |
| 1250 | sig_nz_sad += 4; |
| 1251 | pu1_src += (src_strd *4); |
| 1252 | pu1_est += (est_strd *4); |
| 1253 | } |
| 1254 | |
| 1255 | if((*pi4_mb_distortion) < thrsh[0]<<2) |
| 1256 | { |
| 1257 | *sig_sad_dc = 0; |
| 1258 | if(nz_sad_sig == 0)(*pi4_mb_distortion) = 0; |
| 1259 | } |
| 1260 | else *sig_sad_dc = 1; |
| 1261 | } |
| 1262 | |
Harinarayanan K K | 134291e | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1263 | |