Statistics
| Branch: | Revision:

ffmpeg / libavcodec / motion_test.c @ 28186473

History | View | Annotate | Download (4.01 KB)

1
/*
2
 * (c) 2001 Fabrice Bellard
3
 *
4
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2.1 of the License, or (at your option) any later version.
10
 *
11
 * FFmpeg is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with FFmpeg; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20

    
21
/**
22
 * @file motion_test.c
23
 * motion test.
24
 */
25

    
26
#include <stdlib.h>
27
#include <stdio.h>
28
#include <string.h>
29
#include <sys/time.h>
30
#include <unistd.h>
31

    
32
#include "dsputil.h"
33

    
34
#include "i386/mmx.h"
35

    
36
#undef exit
37
#undef printf
38

    
39
int pix_abs16x16_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
40
int pix_abs16x16_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
41
int pix_abs16x16_c(uint8_t *blk1, uint8_t *blk2, int lx);
42
int pix_abs16x16_x2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
43
int pix_abs16x16_x2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
44
int pix_abs16x16_x2_c(uint8_t *blk1, uint8_t *blk2, int lx);
45
int pix_abs16x16_y2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
46
int pix_abs16x16_y2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
47
int pix_abs16x16_y2_c(uint8_t *blk1, uint8_t *blk2, int lx);
48
int pix_abs16x16_xy2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
49
int pix_abs16x16_xy2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
50
int pix_abs16x16_xy2_c(uint8_t *blk1, uint8_t *blk2, int lx);
51

    
52
typedef int motion_func(uint8_t *blk1, uint8_t *blk2, int lx);
53

    
54
#define WIDTH 64
55
#define HEIGHT 64
56

    
57
uint8_t img1[WIDTH * HEIGHT];
58
uint8_t img2[WIDTH * HEIGHT];
59

    
60
void fill_random(uint8_t *tab, int size)
61
{
62
    int i;
63
    for(i=0;i<size;i++) {
64
#if 1
65
        tab[i] = random() % 256;
66
#else
67
        tab[i] = i;
68
#endif
69
    }
70
}
71

    
72
void help(void)
73
{
74
    printf("motion-test [-h]\n"
75
           "test motion implementations\n");
76
    exit(1);
77
}
78

    
79
int64_t gettime(void)
80
{
81
    struct timeval tv;
82
    gettimeofday(&tv,NULL);
83
    return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
84
}
85

    
86
#define NB_ITS 500
87

    
88
int dummy;
89

    
90
void test_motion(const char *name,
91
                 motion_func *test_func, motion_func *ref_func)
92
{
93
    int x, y, d1, d2, it;
94
    uint8_t *ptr;
95
    int64_t ti;
96
    printf("testing '%s'\n", name);
97

    
98
    /* test correctness */
99
    for(it=0;it<20;it++) {
100

    
101
        fill_random(img1, WIDTH * HEIGHT);
102
        fill_random(img2, WIDTH * HEIGHT);
103

    
104
        for(y=0;y<HEIGHT-17;y++) {
105
            for(x=0;x<WIDTH-17;x++) {
106
                ptr = img2 + y * WIDTH + x;
107
                d1 = test_func(img1, ptr, WIDTH);
108
                d2 = ref_func(img1, ptr, WIDTH);
109
                if (d1 != d2) {
110
                    printf("error: mmx=%d c=%d\n", d1, d2);
111
                }
112
            }
113
        }
114
    }
115
    emms();
116

    
117
    /* speed test */
118
    ti = gettime();
119
    d1 = 0;
120
    for(it=0;it<NB_ITS;it++) {
121
        for(y=0;y<HEIGHT-17;y++) {
122
            for(x=0;x<WIDTH-17;x++) {
123
                ptr = img2 + y * WIDTH + x;
124
                d1 += test_func(img1, ptr, WIDTH);
125
            }
126
        }
127
    }
128
    emms();
129
    dummy = d1; /* avoid optimisation */
130
    ti = gettime() - ti;
131

    
132
    printf("  %0.0f kop/s\n",
133
           (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
134
           (double)(ti / 1000.0));
135
}
136

    
137

    
138
int main(int argc, char **argv)
139
{
140
    int c;
141

    
142
    for(;;) {
143
        c = getopt(argc, argv, "h");
144
        if (c == -1)
145
            break;
146
        switch(c) {
147
        case 'h':
148
            help();
149
            break;
150
        }
151
    }
152

    
153
    printf("ffmpeg motion test\n");
154

    
155
    test_motion("mmx", pix_abs16x16_mmx, pix_abs16x16_c);
156
    test_motion("mmx_x2", pix_abs16x16_x2_mmx, pix_abs16x16_x2_c);
157
    test_motion("mmx_y2", pix_abs16x16_y2_mmx, pix_abs16x16_y2_c);
158
    test_motion("mmx_xy2", pix_abs16x16_xy2_mmx, pix_abs16x16_xy2_c);
159
    return 0;
160
}