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*/ 118void 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*/ 214void 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*/ 295void 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*/ 379void 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*/ 456void 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 468GATHER_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 492GATHER_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*/ 537void 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 611void 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*/ 676void 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*/ 740void 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 756GATHER_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 770GATHER_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*/ 817void 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*/ 906void 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*/ 1025void 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*/ 1161void 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 1263 1264