| 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 | } |