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/***************************************************************************** |
/************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - Sum Of Absolute Difference related code - |
* sum of absolute difference |
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* |
* |
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* Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software ; you can redistribute it and/or modify |
* This program is free software ; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
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* |
* |
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* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
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* along with this program ; if not, write to the Free Software |
* along with this program ; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
* |
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* $Id$ |
*************************************************************************/ |
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/************************************************************************** |
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* |
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* History: |
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* |
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****************************************************************************/ |
* 14.02.2002 added sad16bi_c() |
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* 10.11.2001 initial version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
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* |
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*************************************************************************/ |
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#include "../portab.h" |
#include "../portab.h" |
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#include "../global.h" |
#include "../global.h" |
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#include "sad.h" |
#include "sad.h" |
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#include <stdlib.h> |
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sad16FuncPtr sad16; |
sad16FuncPtr sad16; |
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sad8FuncPtr sad8; |
sad8FuncPtr sad8; |
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sad16biFuncPtr sad16bi; |
sad16biFuncPtr sad16bi; |
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sad8biFuncPtr sad8bi; /* not really sad16, but no difference in prototype */ |
sad8biFuncPtr sad8bi; // not really sad16, but no difference in prototype |
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dev16FuncPtr dev16; |
dev16FuncPtr dev16; |
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sad16vFuncPtr sad16v; |
sad16vFuncPtr sad16v; |
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uint8_t const *ptr_ref = ref; |
uint8_t const *ptr_ref = ref; |
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for (j = 0; j < 16; j++) { |
for (j = 0; j < 16; j++) { |
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sad += abs(ptr_cur[0] - ptr_ref[0]); |
sad += ABS(ptr_cur[0] - ptr_ref[0]); |
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sad += abs(ptr_cur[1] - ptr_ref[1]); |
sad += ABS(ptr_cur[1] - ptr_ref[1]); |
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sad += abs(ptr_cur[2] - ptr_ref[2]); |
sad += ABS(ptr_cur[2] - ptr_ref[2]); |
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sad += abs(ptr_cur[3] - ptr_ref[3]); |
sad += ABS(ptr_cur[3] - ptr_ref[3]); |
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sad += abs(ptr_cur[4] - ptr_ref[4]); |
sad += ABS(ptr_cur[4] - ptr_ref[4]); |
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sad += abs(ptr_cur[5] - ptr_ref[5]); |
sad += ABS(ptr_cur[5] - ptr_ref[5]); |
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sad += abs(ptr_cur[6] - ptr_ref[6]); |
sad += ABS(ptr_cur[6] - ptr_ref[6]); |
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sad += abs(ptr_cur[7] - ptr_ref[7]); |
sad += ABS(ptr_cur[7] - ptr_ref[7]); |
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sad += abs(ptr_cur[8] - ptr_ref[8]); |
sad += ABS(ptr_cur[8] - ptr_ref[8]); |
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sad += abs(ptr_cur[9] - ptr_ref[9]); |
sad += ABS(ptr_cur[9] - ptr_ref[9]); |
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sad += abs(ptr_cur[10] - ptr_ref[10]); |
sad += ABS(ptr_cur[10] - ptr_ref[10]); |
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sad += abs(ptr_cur[11] - ptr_ref[11]); |
sad += ABS(ptr_cur[11] - ptr_ref[11]); |
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sad += abs(ptr_cur[12] - ptr_ref[12]); |
sad += ABS(ptr_cur[12] - ptr_ref[12]); |
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sad += abs(ptr_cur[13] - ptr_ref[13]); |
sad += ABS(ptr_cur[13] - ptr_ref[13]); |
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sad += abs(ptr_cur[14] - ptr_ref[14]); |
sad += ABS(ptr_cur[14] - ptr_ref[14]); |
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sad += abs(ptr_cur[15] - ptr_ref[15]); |
sad += ABS(ptr_cur[15] - ptr_ref[15]); |
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if (sad >= best_sad) |
if (sad >= best_sad) |
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return sad; |
return sad; |
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for (i = 0; i < 16; i++) { |
for (i = 0; i < 16; i++) { |
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int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
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sad += abs(ptr_cur[i] - pixel); |
sad += ABS(ptr_cur[i] - pixel); |
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} |
} |
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ptr_cur += stride; |
ptr_cur += stride; |
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for (i = 0; i < 8; i++) { |
for (i = 0; i < 8; i++) { |
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int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
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sad += abs(ptr_cur[i] - pixel); |
sad += ABS(ptr_cur[i] - pixel); |
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} |
} |
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ptr_cur += stride; |
ptr_cur += stride; |
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for (j = 0; j < 8; j++) { |
for (j = 0; j < 8; j++) { |
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sad += abs(ptr_cur[0] - ptr_ref[0]); |
sad += ABS(ptr_cur[0] - ptr_ref[0]); |
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sad += abs(ptr_cur[1] - ptr_ref[1]); |
sad += ABS(ptr_cur[1] - ptr_ref[1]); |
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sad += abs(ptr_cur[2] - ptr_ref[2]); |
sad += ABS(ptr_cur[2] - ptr_ref[2]); |
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sad += abs(ptr_cur[3] - ptr_ref[3]); |
sad += ABS(ptr_cur[3] - ptr_ref[3]); |
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sad += abs(ptr_cur[4] - ptr_ref[4]); |
sad += ABS(ptr_cur[4] - ptr_ref[4]); |
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sad += abs(ptr_cur[5] - ptr_ref[5]); |
sad += ABS(ptr_cur[5] - ptr_ref[5]); |
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sad += abs(ptr_cur[6] - ptr_ref[6]); |
sad += ABS(ptr_cur[6] - ptr_ref[6]); |
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sad += abs(ptr_cur[7] - ptr_ref[7]); |
sad += ABS(ptr_cur[7] - ptr_ref[7]); |
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ptr_cur += stride; |
ptr_cur += stride; |
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ptr_ref += stride; |
ptr_ref += stride; |
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for (j = 0; j < 16; j++) { |
for (j = 0; j < 16; j++) { |
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for (i = 0; i < 16; i++) |
for (i = 0; i < 16; i++) |
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dev += abs(*(ptr_cur + i) - (int32_t) mean); |
dev += ABS(*(ptr_cur + i) - (int32_t) mean); |
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ptr_cur += stride; |
ptr_cur += stride; |
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int32_t *sad) |
int32_t *sad) |
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{ |
{ |
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sad[0] = sad16(cur, ref, stride, 256*4096); |
sad[0] = sad16(cur, ref, stride, 256*4096); |
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sad[1] = sad16(cur + 16, ref + 16, stride, 256*4096); |
sad[1] = sad16(cur + 8, ref + 8, stride, 256*4096); |
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sad[2] = sad16(cur + 16*stride, ref + 16*stride, stride, 256*4096); |
sad[2] = sad16(cur + 8*stride, ref + 8*stride, stride, 256*4096); |
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sad[3] = sad16(cur + 16*stride + 16, ref + 16*stride + 16, stride, 256*4096); |
sad[3] = sad16(cur + 8*stride + 8, ref + 8*stride + 8, stride, 256*4096); |
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return sad[0]+sad[1]+sad[2]+sad[3]; |
return sad[0]+sad[1]+sad[2]+sad[3]; |
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} |
} |
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for (i = 0; i < 16; i++) { |
for (i = 0; i < 16; i++) { |
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sad += abs(*(ptr_cur + i) - *(ptr_ref + i) - mean); |
sad += ABS(*(ptr_cur + i) - *(ptr_ref + i) - mean); |
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if (sad >= best_sad) { |
if (sad >= best_sad) { |
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return MRSAD16_CORRFACTOR * sad; |
return MRSAD16_CORRFACTOR * sad; |
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} |
} |
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} |
} |
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return MRSAD16_CORRFACTOR * sad; |
return MRSAD16_CORRFACTOR * sad; |
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} |
} |
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