--- branches/dev-api-4/xvidcore/src/motion/sad.c 2003/04/10 13:05:54 982 +++ branches/dev-api-4/xvidcore/src/motion/sad.c 2003/11/13 23:11:24 1205 @@ -1,42 +1,27 @@ -/************************************************************************** +/***************************************************************************** * - * XVID MPEG-4 VIDEO CODEC - * sum of absolute difference + * XVID MPEG-4 VIDEO CODEC + * - Sum Of Absolute Difference related code - * - * This program is an implementation of a part of one or more MPEG-4 - * Video tools as specified in ISO/IEC 14496-2 standard. Those intending - * to use this software module in hardware or software products are - * advised that its use may infringe existing patents or copyrights, and - * any such use would be at such party's own risk. The original - * developer of this software module and his/her company, and subsequent - * editors and their companies, will have no liability for use of this - * software or modifications or derivatives thereof. + * Copyright(C) 2001-2003 Peter Ross * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * This program is free software ; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation ; either version 2 of the License, or + * (at your option) any later version. * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY ; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * You should have received a copy of the GNU General Public License + * along with this program ; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - *************************************************************************/ - -/************************************************************************** - * - * History: + * $Id: sad.c,v 1.13.2.8 2003-11-13 23:11:24 edgomez Exp $ * - * 14.02.2002 added sad16bi_c() - * 10.11.2001 initial version; (c)2001 peter ross - * - *************************************************************************/ - + ****************************************************************************/ #include "../portab.h" #include "../global.h" @@ -47,9 +32,10 @@ sad16FuncPtr sad16; sad8FuncPtr sad8; sad16biFuncPtr sad16bi; -sad8biFuncPtr sad8bi; // not really sad16, but no difference in prototype +sad8biFuncPtr sad8bi; /* not really sad16, but no difference in prototype */ dev16FuncPtr dev16; sad16vFuncPtr sad16v; +sse8Func_16bitPtr sse8_16bit; sadInitFuncPtr sadInit; @@ -84,7 +70,7 @@ sad += abs(ptr_cur[14] - ptr_ref[14]); sad += abs(ptr_cur[15] - ptr_ref[15]); - if (sad >= best_sad) + if (sad >= best_sad) return sad; ptr_cur += stride; @@ -178,7 +164,7 @@ sad += abs(ptr_cur[5] - ptr_ref[5]); sad += abs(ptr_cur[6] - ptr_ref[6]); sad += abs(ptr_cur[7] - ptr_ref[7]); - + ptr_cur += stride; ptr_ref += stride; @@ -224,29 +210,29 @@ return dev; } -uint32_t sad16v_c(const uint8_t * const cur, - const uint8_t * const ref, - const uint32_t stride, +uint32_t sad16v_c(const uint8_t * const cur, + const uint8_t * const ref, + const uint32_t stride, int32_t *sad) { sad[0] = sad8(cur, ref, stride); sad[1] = sad8(cur + 8, ref + 8, stride); sad[2] = sad8(cur + 8*stride, ref + 8*stride, stride); sad[3] = sad8(cur + 8*stride + 8, ref + 8*stride + 8, stride); - + return sad[0]+sad[1]+sad[2]+sad[3]; } -uint32_t sad32v_c(const uint8_t * const cur, - const uint8_t * const ref, - const uint32_t stride, +uint32_t sad32v_c(const uint8_t * const cur, + const uint8_t * const ref, + const uint32_t stride, int32_t *sad) { sad[0] = sad16(cur, ref, stride, 256*4096); - sad[1] = sad16(cur + 8, ref + 8, stride, 256*4096); - sad[2] = sad16(cur + 8*stride, ref + 8*stride, stride, 256*4096); - sad[3] = sad16(cur + 8*stride + 8, ref + 8*stride + 8, stride, 256*4096); - + sad[1] = sad16(cur + 16, ref + 16, stride, 256*4096); + sad[2] = sad16(cur + 16*stride, ref + 16*stride, stride, 256*4096); + sad[3] = sad16(cur + 16*stride + 16, ref + 16*stride + 16, stride, 256*4096); + return sad[0]+sad[1]+sad[2]+sad[3]; } @@ -291,7 +277,29 @@ } return MRSAD16_CORRFACTOR * sad; - } +uint32_t +sse8_16bit_c(const int16_t * b1, + const int16_t * b2, + const uint32_t stride) +{ + int i; + int sse = 0; + + for (i=0; i<8; i++) { + sse += (b1[0] - b2[0])*(b1[0] - b2[0]); + sse += (b1[1] - b2[1])*(b1[1] - b2[1]); + sse += (b1[2] - b2[2])*(b1[2] - b2[2]); + sse += (b1[3] - b2[3])*(b1[3] - b2[3]); + sse += (b1[4] - b2[4])*(b1[4] - b2[4]); + sse += (b1[5] - b2[5])*(b1[5] - b2[5]); + sse += (b1[6] - b2[6])*(b1[6] - b2[6]); + sse += (b1[7] - b2[7])*(b1[7] - b2[7]); + b1 = (const int16_t*)((int8_t*)b1+stride); + b2 = (const int16_t*)((int8_t*)b2+stride); + } + + return(sse); +}