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2ba45a60 DM |
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 | |
23 | * motion test. | |
24 | */ | |
25 | ||
26 | #include <stdlib.h> | |
27 | #include <stdio.h> | |
28 | #include <string.h> | |
29 | ||
30 | #include "config.h" | |
31 | #include "me_cmp.h" | |
32 | #include "libavutil/internal.h" | |
33 | #include "libavutil/lfg.h" | |
34 | #include "libavutil/mem.h" | |
35 | #include "libavutil/time.h" | |
36 | ||
37 | #undef printf | |
38 | ||
39 | #define WIDTH 64 | |
40 | #define HEIGHT 64 | |
41 | ||
42 | static uint8_t img1[WIDTH * HEIGHT]; | |
43 | static uint8_t img2[WIDTH * HEIGHT]; | |
44 | ||
45 | static void fill_random(uint8_t *tab, int size) | |
46 | { | |
47 | int i; | |
48 | AVLFG prng; | |
49 | ||
50 | av_lfg_init(&prng, 1); | |
51 | for(i=0;i<size;i++) { | |
52 | tab[i] = av_lfg_get(&prng) % 256; | |
53 | } | |
54 | } | |
55 | ||
56 | static void help(void) | |
57 | { | |
58 | printf("motion-test [-h]\n" | |
59 | "test motion implementations\n"); | |
60 | } | |
61 | ||
62 | #define NB_ITS 500 | |
63 | ||
64 | int dummy; | |
65 | ||
66 | static void test_motion(const char *name, | |
67 | me_cmp_func test_func, me_cmp_func ref_func) | |
68 | { | |
69 | int x, y, d1, d2, it; | |
70 | uint8_t *ptr; | |
71 | int64_t ti; | |
72 | printf("testing '%s'\n", name); | |
73 | ||
74 | /* test correctness */ | |
75 | for(it=0;it<20;it++) { | |
76 | ||
77 | fill_random(img1, WIDTH * HEIGHT); | |
78 | fill_random(img2, WIDTH * HEIGHT); | |
79 | ||
80 | for(y=0;y<HEIGHT-17;y++) { | |
81 | for(x=0;x<WIDTH-17;x++) { | |
82 | ptr = img2 + y * WIDTH + x; | |
83 | d1 = test_func(NULL, img1, ptr, WIDTH, 8); | |
84 | d2 = ref_func(NULL, img1, ptr, WIDTH, 8); | |
85 | if (d1 != d2) { | |
86 | printf("error: mmx=%d c=%d\n", d1, d2); | |
87 | } | |
88 | } | |
89 | } | |
90 | } | |
91 | emms_c(); | |
92 | ||
93 | /* speed test */ | |
94 | ti = av_gettime_relative(); | |
95 | d1 = 0; | |
96 | for(it=0;it<NB_ITS;it++) { | |
97 | for(y=0;y<HEIGHT-17;y++) { | |
98 | for(x=0;x<WIDTH-17;x++) { | |
99 | ptr = img2 + y * WIDTH + x; | |
100 | d1 += test_func(NULL, img1, ptr, WIDTH, 8); | |
101 | } | |
102 | } | |
103 | } | |
104 | emms_c(); | |
105 | dummy = d1; /* avoid optimization */ | |
106 | ti = av_gettime_relative() - ti; | |
107 | ||
108 | printf(" %0.0f kop/s\n", | |
109 | (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) / | |
110 | (double)(ti / 1000.0)); | |
111 | } | |
112 | ||
113 | ||
114 | int main(int argc, char **argv) | |
115 | { | |
116 | AVCodecContext *ctx; | |
117 | int c; | |
118 | MECmpContext cctx, mmxctx; | |
119 | int flags[2] = { AV_CPU_FLAG_MMX, AV_CPU_FLAG_MMXEXT }; | |
120 | int flags_size = HAVE_MMXEXT ? 2 : 1; | |
121 | ||
122 | if (argc > 1) { | |
123 | help(); | |
124 | return 1; | |
125 | } | |
126 | ||
127 | printf("ffmpeg motion test\n"); | |
128 | ||
129 | ctx = avcodec_alloc_context3(NULL); | |
130 | ctx->flags |= CODEC_FLAG_BITEXACT; | |
131 | av_force_cpu_flags(0); | |
132 | memset(&cctx, 0, sizeof(cctx)); | |
133 | ff_me_cmp_init(&cctx, ctx); | |
134 | for (c = 0; c < flags_size; c++) { | |
135 | int x; | |
136 | av_force_cpu_flags(flags[c]); | |
137 | memset(&mmxctx, 0, sizeof(mmxctx)); | |
138 | ff_me_cmp_init(&mmxctx, ctx); | |
139 | ||
140 | for (x = 0; x < 2; x++) { | |
141 | printf("%s for %dx%d pixels\n", c ? "mmx2" : "mmx", | |
142 | x ? 8 : 16, x ? 8 : 16); | |
143 | test_motion("mmx", mmxctx.pix_abs[x][0], cctx.pix_abs[x][0]); | |
144 | test_motion("mmx_x2", mmxctx.pix_abs[x][1], cctx.pix_abs[x][1]); | |
145 | test_motion("mmx_y2", mmxctx.pix_abs[x][2], cctx.pix_abs[x][2]); | |
146 | test_motion("mmx_xy2", mmxctx.pix_abs[x][3], cctx.pix_abs[x][3]); | |
147 | } | |
148 | } | |
149 | av_free(ctx); | |
150 | ||
151 | return 0; | |
152 | } |