Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / motion-test.c
CommitLineData
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
42static uint8_t img1[WIDTH * HEIGHT];
43static uint8_t img2[WIDTH * HEIGHT];
44
45static 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
56static void help(void)
57{
58 printf("motion-test [-h]\n"
59 "test motion implementations\n");
60}
61
62#define NB_ITS 500
63
64int dummy;
65
66static 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
114int 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}