1 |
/************************************************************************** |
/***************************************************************************** |
2 |
* |
* |
3 |
* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
4 |
* sum of absolute difference |
* - Sum Of Absolute Difference related code - |
5 |
* |
* |
6 |
* This program is an implementation of a part of one or more MPEG-4 |
* Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
|
* 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. |
|
7 |
* |
* |
8 |
* This program is free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
9 |
* 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 |
17 |
* |
* |
18 |
* You should have received a copy of the GNU General Public License |
* You should have received a copy of the GNU General Public License |
19 |
* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
20 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 |
* |
* |
22 |
*************************************************************************/ |
* $Id$ |
|
|
|
|
/************************************************************************** |
|
|
* |
|
|
* History: |
|
23 |
* |
* |
24 |
* 14.02.2002 added sad16bi_c() |
****************************************************************************/ |
|
* 10.11.2001 initial version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
|
|
* |
|
|
*************************************************************************/ |
|
|
|
|
25 |
|
|
26 |
#include "../portab.h" |
#include "../portab.h" |
27 |
#include "../global.h" |
#include "../global.h" |
28 |
#include "sad.h" |
#include "sad.h" |
29 |
|
|
30 |
|
#include <stdlib.h> |
31 |
|
|
32 |
sad16FuncPtr sad16; |
sad16FuncPtr sad16; |
33 |
sad8FuncPtr sad8; |
sad8FuncPtr sad8; |
34 |
sad16biFuncPtr sad16bi; |
sad16biFuncPtr sad16bi; |
35 |
sad8biFuncPtr sad8bi; // not really sad16, but no difference in prototype |
sad8biFuncPtr sad8bi; /* not really sad16, but no difference in prototype */ |
36 |
dev16FuncPtr dev16; |
dev16FuncPtr dev16; |
37 |
sad16vFuncPtr sad16v; |
sad16vFuncPtr sad16v; |
38 |
|
|
52 |
uint8_t const *ptr_ref = ref; |
uint8_t const *ptr_ref = ref; |
53 |
|
|
54 |
for (j = 0; j < 16; j++) { |
for (j = 0; j < 16; j++) { |
55 |
sad += ABS(ptr_cur[0] - ptr_ref[0]); |
sad += abs(ptr_cur[0] - ptr_ref[0]); |
56 |
sad += ABS(ptr_cur[1] - ptr_ref[1]); |
sad += abs(ptr_cur[1] - ptr_ref[1]); |
57 |
sad += ABS(ptr_cur[2] - ptr_ref[2]); |
sad += abs(ptr_cur[2] - ptr_ref[2]); |
58 |
sad += ABS(ptr_cur[3] - ptr_ref[3]); |
sad += abs(ptr_cur[3] - ptr_ref[3]); |
59 |
sad += ABS(ptr_cur[4] - ptr_ref[4]); |
sad += abs(ptr_cur[4] - ptr_ref[4]); |
60 |
sad += ABS(ptr_cur[5] - ptr_ref[5]); |
sad += abs(ptr_cur[5] - ptr_ref[5]); |
61 |
sad += ABS(ptr_cur[6] - ptr_ref[6]); |
sad += abs(ptr_cur[6] - ptr_ref[6]); |
62 |
sad += ABS(ptr_cur[7] - ptr_ref[7]); |
sad += abs(ptr_cur[7] - ptr_ref[7]); |
63 |
sad += ABS(ptr_cur[8] - ptr_ref[8]); |
sad += abs(ptr_cur[8] - ptr_ref[8]); |
64 |
sad += ABS(ptr_cur[9] - ptr_ref[9]); |
sad += abs(ptr_cur[9] - ptr_ref[9]); |
65 |
sad += ABS(ptr_cur[10] - ptr_ref[10]); |
sad += abs(ptr_cur[10] - ptr_ref[10]); |
66 |
sad += ABS(ptr_cur[11] - ptr_ref[11]); |
sad += abs(ptr_cur[11] - ptr_ref[11]); |
67 |
sad += ABS(ptr_cur[12] - ptr_ref[12]); |
sad += abs(ptr_cur[12] - ptr_ref[12]); |
68 |
sad += ABS(ptr_cur[13] - ptr_ref[13]); |
sad += abs(ptr_cur[13] - ptr_ref[13]); |
69 |
sad += ABS(ptr_cur[14] - ptr_ref[14]); |
sad += abs(ptr_cur[14] - ptr_ref[14]); |
70 |
sad += ABS(ptr_cur[15] - ptr_ref[15]); |
sad += abs(ptr_cur[15] - ptr_ref[15]); |
71 |
|
|
72 |
if (sad >= best_sad) |
if (sad >= best_sad) |
73 |
return sad; |
return sad; |
98 |
|
|
99 |
for (i = 0; i < 16; i++) { |
for (i = 0; i < 16; i++) { |
100 |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
101 |
|
sad += abs(ptr_cur[i] - pixel); |
|
if (pixel < 0) { |
|
|
pixel = 0; |
|
|
} else if (pixel > 255) { |
|
|
pixel = 255; |
|
|
} |
|
|
|
|
|
sad += ABS(ptr_cur[i] - pixel); |
|
102 |
} |
} |
103 |
|
|
104 |
ptr_cur += stride; |
ptr_cur += stride; |
128 |
|
|
129 |
for (i = 0; i < 8; i++) { |
for (i = 0; i < 8; i++) { |
130 |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
int pixel = (ptr_ref1[i] + ptr_ref2[i] + 1) / 2; |
131 |
|
sad += abs(ptr_cur[i] - pixel); |
|
if (pixel < 0) { |
|
|
pixel = 0; |
|
|
} else if (pixel > 255) { |
|
|
pixel = 255; |
|
|
} |
|
|
|
|
|
sad += ABS(ptr_cur[i] - pixel); |
|
132 |
} |
} |
133 |
|
|
134 |
ptr_cur += stride; |
ptr_cur += stride; |
155 |
|
|
156 |
for (j = 0; j < 8; j++) { |
for (j = 0; j < 8; j++) { |
157 |
|
|
158 |
sad += ABS(ptr_cur[0] - ptr_ref[0]); |
sad += abs(ptr_cur[0] - ptr_ref[0]); |
159 |
sad += ABS(ptr_cur[1] - ptr_ref[1]); |
sad += abs(ptr_cur[1] - ptr_ref[1]); |
160 |
sad += ABS(ptr_cur[2] - ptr_ref[2]); |
sad += abs(ptr_cur[2] - ptr_ref[2]); |
161 |
sad += ABS(ptr_cur[3] - ptr_ref[3]); |
sad += abs(ptr_cur[3] - ptr_ref[3]); |
162 |
sad += ABS(ptr_cur[4] - ptr_ref[4]); |
sad += abs(ptr_cur[4] - ptr_ref[4]); |
163 |
sad += ABS(ptr_cur[5] - ptr_ref[5]); |
sad += abs(ptr_cur[5] - ptr_ref[5]); |
164 |
sad += ABS(ptr_cur[6] - ptr_ref[6]); |
sad += abs(ptr_cur[6] - ptr_ref[6]); |
165 |
sad += ABS(ptr_cur[7] - ptr_ref[7]); |
sad += abs(ptr_cur[7] - ptr_ref[7]); |
166 |
|
|
167 |
ptr_cur += stride; |
ptr_cur += stride; |
168 |
ptr_ref += stride; |
ptr_ref += stride; |
200 |
for (j = 0; j < 16; j++) { |
for (j = 0; j < 16; j++) { |
201 |
|
|
202 |
for (i = 0; i < 16; i++) |
for (i = 0; i < 16; i++) |
203 |
dev += ABS(*(ptr_cur + i) - (int32_t) mean); |
dev += abs(*(ptr_cur + i) - (int32_t) mean); |
204 |
|
|
205 |
ptr_cur += stride; |
ptr_cur += stride; |
206 |
|
|
228 |
int32_t *sad) |
int32_t *sad) |
229 |
{ |
{ |
230 |
sad[0] = sad16(cur, ref, stride, 256*4096); |
sad[0] = sad16(cur, ref, stride, 256*4096); |
231 |
sad[1] = sad16(cur + 8, ref + 8, stride, 256*4096); |
sad[1] = sad16(cur + 16, ref + 16, stride, 256*4096); |
232 |
sad[2] = sad16(cur + 8*stride, ref + 8*stride, stride, 256*4096); |
sad[2] = sad16(cur + 16*stride, ref + 16*stride, stride, 256*4096); |
233 |
sad[3] = sad16(cur + 8*stride + 8, ref + 8*stride + 8, stride, 256*4096); |
sad[3] = sad16(cur + 16*stride + 16, ref + 16*stride + 16, stride, 256*4096); |
234 |
|
|
235 |
return sad[0]+sad[1]+sad[2]+sad[3]; |
return sad[0]+sad[1]+sad[2]+sad[3]; |
236 |
} |
} |
268 |
|
|
269 |
for (i = 0; i < 16; i++) { |
for (i = 0; i < 16; i++) { |
270 |
|
|
271 |
sad += ABS(*(ptr_cur + i) - *(ptr_ref + i) - mean); |
sad += abs(*(ptr_cur + i) - *(ptr_ref + i) - mean); |
272 |
if (sad >= best_sad) { |
if (sad >= best_sad) { |
273 |
return MRSAD16_CORRFACTOR * sad; |
return MRSAD16_CORRFACTOR * sad; |
274 |
} |
} |
276 |
} |
} |
277 |
|
|
278 |
return MRSAD16_CORRFACTOR * sad; |
return MRSAD16_CORRFACTOR * sad; |
|
|
|
279 |
} |
} |
|
|
|
|
|
|