--- sad.c 2003/09/10 22:19:00 1.13.2.6 +++ sad.c 2003/03/28 08:43:28 1.14 @@ -1,38 +1,51 @@ -/***************************************************************************** +/************************************************************************** * - * XVID MPEG-4 VIDEO CODEC - * - Sum Of Absolute Difference related code - + * XVID MPEG-4 VIDEO CODEC + * sum of absolute difference * - * Copyright(C) 2001-2003 Peter Ross + * 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. * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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., 675 Mass Ave, Cambridge, MA 02139, USA. * - * $Id: sad.c,v 1.13.2.6 2003/09/10 22:19:00 edgomez Exp $ + *************************************************************************/ + +/************************************************************************** + * + * History: * - ****************************************************************************/ + * 14.02.2002 added sad16bi_c() + * 10.11.2001 initial version; (c)2001 peter ross + * + *************************************************************************/ + #include "../portab.h" #include "../global.h" #include "sad.h" -#include - 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; @@ -52,22 +65,22 @@ uint8_t const *ptr_ref = ref; for (j = 0; j < 16; j++) { - sad += abs(ptr_cur[0] - ptr_ref[0]); - sad += abs(ptr_cur[1] - ptr_ref[1]); - sad += abs(ptr_cur[2] - ptr_ref[2]); - sad += abs(ptr_cur[3] - ptr_ref[3]); - sad += abs(ptr_cur[4] - ptr_ref[4]); - sad += abs(ptr_cur[5] - ptr_ref[5]); - sad += abs(ptr_cur[6] - ptr_ref[6]); - sad += abs(ptr_cur[7] - ptr_ref[7]); - sad += abs(ptr_cur[8] - ptr_ref[8]); - sad += abs(ptr_cur[9] - ptr_ref[9]); - sad += abs(ptr_cur[10] - ptr_ref[10]); - sad += abs(ptr_cur[11] - ptr_ref[11]); - sad += abs(ptr_cur[12] - ptr_ref[12]); - sad += abs(ptr_cur[13] - ptr_ref[13]); - sad += abs(ptr_cur[14] - ptr_ref[14]); - sad += abs(ptr_cur[15] - ptr_ref[15]); + sad += ABS(ptr_cur[0] - ptr_ref[0]); + sad += ABS(ptr_cur[1] - ptr_ref[1]); + sad += ABS(ptr_cur[2] - ptr_ref[2]); + sad += ABS(ptr_cur[3] - ptr_ref[3]); + sad += ABS(ptr_cur[4] - ptr_ref[4]); + sad += ABS(ptr_cur[5] - ptr_ref[5]); + sad += ABS(ptr_cur[6] - ptr_ref[6]); + sad += ABS(ptr_cur[7] - ptr_ref[7]); + sad += ABS(ptr_cur[8] - ptr_ref[8]); + sad += ABS(ptr_cur[9] - ptr_ref[9]); + sad += ABS(ptr_cur[10] - ptr_ref[10]); + sad += ABS(ptr_cur[11] - ptr_ref[11]); + sad += ABS(ptr_cur[12] - ptr_ref[12]); + sad += ABS(ptr_cur[13] - ptr_ref[13]); + sad += ABS(ptr_cur[14] - ptr_ref[14]); + sad += ABS(ptr_cur[15] - ptr_ref[15]); if (sad >= best_sad) return sad; @@ -98,7 +111,7 @@ for (i = 0; i < 16; i++) { int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; - sad += abs(ptr_cur[i] - pixel); + sad += ABS(ptr_cur[i] - pixel); } ptr_cur += stride; @@ -128,7 +141,7 @@ for (i = 0; i < 8; i++) { int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; - sad += abs(ptr_cur[i] - pixel); + sad += ABS(ptr_cur[i] - pixel); } ptr_cur += stride; @@ -155,14 +168,14 @@ for (j = 0; j < 8; j++) { - sad += abs(ptr_cur[0] - ptr_ref[0]); - sad += abs(ptr_cur[1] - ptr_ref[1]); - sad += abs(ptr_cur[2] - ptr_ref[2]); - sad += abs(ptr_cur[3] - ptr_ref[3]); - sad += abs(ptr_cur[4] - ptr_ref[4]); - sad += abs(ptr_cur[5] - ptr_ref[5]); - sad += abs(ptr_cur[6] - ptr_ref[6]); - sad += abs(ptr_cur[7] - ptr_ref[7]); + sad += ABS(ptr_cur[0] - ptr_ref[0]); + sad += ABS(ptr_cur[1] - ptr_ref[1]); + sad += ABS(ptr_cur[2] - ptr_ref[2]); + sad += ABS(ptr_cur[3] - ptr_ref[3]); + sad += ABS(ptr_cur[4] - ptr_ref[4]); + 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; @@ -200,7 +213,7 @@ for (j = 0; j < 16; j++) { for (i = 0; i < 16; i++) - dev += abs(*(ptr_cur + i) - (int32_t) mean); + dev += ABS(*(ptr_cur + i) - (int32_t) mean); ptr_cur += stride; @@ -228,9 +241,9 @@ int32_t *sad) { sad[0] = sad16(cur, ref, 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); + 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); return sad[0]+sad[1]+sad[2]+sad[3]; } @@ -268,7 +281,7 @@ for (i = 0; i < 16; i++) { - sad += abs(*(ptr_cur + i) - *(ptr_ref + i) - mean); + sad += ABS(*(ptr_cur + i) - *(ptr_ref + i) - mean); if (sad >= best_sad) { return MRSAD16_CORRFACTOR * sad; } @@ -276,4 +289,7 @@ } return MRSAD16_CORRFACTOR * sad; + } + +