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 libavcodec/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#undef exit 35#undef printf 36#undef random 37 38#define WIDTH 64 39#define HEIGHT 64 40 41uint8_t img1[WIDTH * HEIGHT]; 42uint8_t img2[WIDTH * HEIGHT]; 43 44void fill_random(uint8_t *tab, int size) 45{ 46 int i; 47 for(i=0;i<size;i++) { 48#if 1 49 tab[i] = random() % 256; 50#else 51 tab[i] = i; 52#endif 53 } 54} 55 56void help(void) 57{ 58 printf("motion-test [-h]\n" 59 "test motion implementations\n"); 60 exit(1); 61} 62 63int64_t gettime(void) 64{ 65 struct timeval tv; 66 gettimeofday(&tv,NULL); 67 return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec; 68} 69 70#define NB_ITS 500 71 72int dummy; 73 74void test_motion(const char *name, 75 me_cmp_func test_func, me_cmp_func ref_func) 76{ 77 int x, y, d1, d2, it; 78 uint8_t *ptr; 79 int64_t ti; 80 printf("testing '%s'\n", name); 81 82 /* test correctness */ 83 for(it=0;it<20;it++) { 84 85 fill_random(img1, WIDTH * HEIGHT); 86 fill_random(img2, WIDTH * HEIGHT); 87 88 for(y=0;y<HEIGHT-17;y++) { 89 for(x=0;x<WIDTH-17;x++) { 90 ptr = img2 + y * WIDTH + x; 91 d1 = test_func(NULL, img1, ptr, WIDTH, 1); 92 d2 = ref_func(NULL, img1, ptr, WIDTH, 1); 93 if (d1 != d2) { 94 printf("error: mmx=%d c=%d\n", d1, d2); 95 } 96 } 97 } 98 } 99 emms_c(); 100 101 /* speed test */ 102 ti = gettime(); 103 d1 = 0; 104 for(it=0;it<NB_ITS;it++) { 105 for(y=0;y<HEIGHT-17;y++) { 106 for(x=0;x<WIDTH-17;x++) { 107 ptr = img2 + y * WIDTH + x; 108 d1 += test_func(NULL, img1, ptr, WIDTH, 1); 109 } 110 } 111 } 112 emms_c(); 113 dummy = d1; /* avoid optimization */ 114 ti = gettime() - ti; 115 116 printf(" %0.0f kop/s\n", 117 (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) / 118 (double)(ti / 1000.0)); 119} 120 121 122int main(int argc, char **argv) 123{ 124 AVCodecContext *ctx; 125 int c; 126 DSPContext cctx, mmxctx; 127 int flags[2] = { FF_MM_MMX, FF_MM_MMXEXT }; 128 129 for(;;) { 130 c = getopt(argc, argv, "h"); 131 if (c == -1) 132 break; 133 switch(c) { 134 case 'h': 135 help(); 136 break; 137 } 138 } 139 140 printf("ffmpeg motion test\n"); 141 142 ctx = avcodec_alloc_context(); 143 ctx->dsp_mask = FF_MM_FORCE; 144 dsputil_init(&cctx, ctx); 145 for (c = 0; c < 2; c++) { 146 int x; 147 ctx->dsp_mask = FF_MM_FORCE | flags[c]; 148 dsputil_init(&mmxctx, ctx); 149 150 for (x = 0; x < 2; x++) { 151 printf("%s for %dx%d pixels\n", c ? "mmx2" : "mmx", 152 x ? 8 : 16, x ? 8 : 16); 153 test_motion("mmx", mmxctx.pix_abs[x][0], cctx.pix_abs[x][0]); 154 test_motion("mmx_x2", mmxctx.pix_abs[x][1], cctx.pix_abs[x][1]); 155 test_motion("mmx_y2", mmxctx.pix_abs[x][2], cctx.pix_abs[x][2]); 156 test_motion("mmx_xy2", mmxctx.pix_abs[x][3], cctx.pix_abs[x][3]); 157 } 158 } 159 av_free(ctx); 160 161 return 0; 162} 163