1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* motion test.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <unistd.h>
#include "config.h"
#include "dsputil.h"
#include "libavutil/lfg.h"
#undef exit
#undef printf
#define WIDTH 64
#define HEIGHT 64
uint8_t img1[WIDTH * HEIGHT];
uint8_t img2[WIDTH * HEIGHT];
static void fill_random(uint8_t *tab, int size)
{
int i;
AVLFG prng;
av_lfg_init(&prng, 1);
for(i=0;i<size;i++) {
#if 1
tab[i] = av_lfg_get(&prng) % 256;
#else
tab[i] = i;
#endif
}
}
static void help(void)
{
printf("motion-test [-h]\n"
"test motion implementations\n");
exit(1);
}
static int64_t gettime(void)
{
struct timeval tv;
gettimeofday(&tv,NULL);
return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
}
#define NB_ITS 500
int dummy;
static void test_motion(const char *name,
me_cmp_func test_func, me_cmp_func ref_func)
{
int x, y, d1, d2, it;
uint8_t *ptr;
int64_t ti;
printf("testing '%s'\n", name);
/* test correctness */
for(it=0;it<20;it++) {
fill_random(img1, WIDTH * HEIGHT);
fill_random(img2, WIDTH * HEIGHT);
for(y=0;y<HEIGHT-17;y++) {
for(x=0;x<WIDTH-17;x++) {
ptr = img2 + y * WIDTH + x;
d1 = test_func(NULL, img1, ptr, WIDTH, 1);
d2 = ref_func(NULL, img1, ptr, WIDTH, 1);
if (d1 != d2) {
printf("error: mmx=%d c=%d\n", d1, d2);
}
}
}
}
emms_c();
/* speed test */
ti = gettime();
d1 = 0;
for(it=0;it<NB_ITS;it++) {
for(y=0;y<HEIGHT-17;y++) {
for(x=0;x<WIDTH-17;x++) {
ptr = img2 + y * WIDTH + x;
d1 += test_func(NULL, img1, ptr, WIDTH, 1);
}
}
}
emms_c();
dummy = d1; /* avoid optimization */
ti = gettime() - ti;
printf(" %0.0f kop/s\n",
(double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
(double)(ti / 1000.0));
}
int main(int argc, char **argv)
{
AVCodecContext *ctx;
int c;
DSPContext cctx, mmxctx;
int flags[2] = { FF_MM_MMX, FF_MM_MMX2 };
int flags_size = HAVE_MMX2 ? 2 : 1;
for(;;) {
c = getopt(argc, argv, "h");
if (c == -1)
break;
switch(c) {
case 'h':
help();
break;
}
}
printf("ffmpeg motion test\n");
ctx = avcodec_alloc_context();
ctx->dsp_mask = FF_MM_FORCE;
dsputil_init(&cctx, ctx);
for (c = 0; c < flags_size; c++) {
int x;
ctx->dsp_mask = FF_MM_FORCE | flags[c];
dsputil_init(&mmxctx, ctx);
for (x = 0; x < 2; x++) {
printf("%s for %dx%d pixels\n", c ? "mmx2" : "mmx",
x ? 8 : 16, x ? 8 : 16);
test_motion("mmx", mmxctx.pix_abs[x][0], cctx.pix_abs[x][0]);
test_motion("mmx_x2", mmxctx.pix_abs[x][1], cctx.pix_abs[x][1]);
test_motion("mmx_y2", mmxctx.pix_abs[x][2], cctx.pix_abs[x][2]);
test_motion("mmx_xy2", mmxctx.pix_abs[x][3], cctx.pix_abs[x][3]);
}
}
av_free(ctx);
return 0;
}
|
