2 * (c) 2001 Fabrice Bellard
4 * This file is part of FFmpeg.
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.
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.
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
42 uint8_t img1[WIDTH * HEIGHT];
43 uint8_t img2[WIDTH * HEIGHT];
45 void fill_random(uint8_t *tab, int size)
50 tab[i] = random() % 256;
59 printf("motion-test [-h]\n"
60 "test motion implementations\n");
67 gettimeofday(&tv,NULL);
68 return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
75 void test_motion(const char *name,
76 me_cmp_func test_func, me_cmp_func ref_func)
81 printf("testing '%s'\n", name);
83 /* test correctness */
84 for(it=0;it<20;it++) {
86 fill_random(img1, WIDTH * HEIGHT);
87 fill_random(img2, WIDTH * HEIGHT);
89 for(y=0;y<HEIGHT-17;y++) {
90 for(x=0;x<WIDTH-17;x++) {
91 ptr = img2 + y * WIDTH + x;
92 d1 = test_func(NULL, img1, ptr, WIDTH, 1);
93 d2 = ref_func(NULL, img1, ptr, WIDTH, 1);
95 printf("error: mmx=%d c=%d\n", d1, d2);
105 for(it=0;it<NB_ITS;it++) {
106 for(y=0;y<HEIGHT-17;y++) {
107 for(x=0;x<WIDTH-17;x++) {
108 ptr = img2 + y * WIDTH + x;
109 d1 += test_func(NULL, img1, ptr, WIDTH, 1);
114 dummy = d1; /* avoid optimisation */
117 printf(" %0.0f kop/s\n",
118 (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
119 (double)(ti / 1000.0));
123 int main(int argc, char **argv)
127 DSPContext cctx, mmxctx;
128 int flags[2] = { FF_MM_MMX, FF_MM_MMXEXT };
131 c = getopt(argc, argv, "h");
141 printf("ffmpeg motion test\n");
143 ctx = avcodec_alloc_context();
144 ctx->dsp_mask = FF_MM_FORCE;
145 dsputil_init(&cctx, ctx);
146 for (c = 0; c < 2; c++) {
148 ctx->dsp_mask = FF_MM_FORCE | flags[c];
149 dsputil_init(&mmxctx, ctx);
151 for (x = 0; x < 2; x++) {
152 printf("%s for %dx%d pixels\n", c ? "mmx2" : "mmx",
153 x ? 8 : 16, x ? 8 : 16);
154 test_motion("mmx", mmxctx.pix_abs[x][0], cctx.pix_abs[x][0]);
155 test_motion("mmx_x2", mmxctx.pix_abs[x][1], cctx.pix_abs[x][1]);
156 test_motion("mmx_y2", mmxctx.pix_abs[x][2], cctx.pix_abs[x][2]);
157 test_motion("mmx_xy2", mmxctx.pix_abs[x][3], cctx.pix_abs[x][3]);