yading@10: /*
yading@10:  * (c) 2001 Fabrice Bellard
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * motion test.
yading@10:  */
yading@10: 
yading@10: #include <stdlib.h>
yading@10: #include <stdio.h>
yading@10: #include <string.h>
yading@10: 
yading@10: #include "config.h"
yading@10: #include "dsputil.h"
yading@10: #include "libavutil/internal.h"
yading@10: #include "libavutil/lfg.h"
yading@10: #include "libavutil/mem.h"
yading@10: #include "libavutil/time.h"
yading@10: 
yading@10: #undef printf
yading@10: 
yading@10: #define WIDTH 64
yading@10: #define HEIGHT 64
yading@10: 
yading@10: static uint8_t img1[WIDTH * HEIGHT];
yading@10: static uint8_t img2[WIDTH * HEIGHT];
yading@10: 
yading@10: static void fill_random(uint8_t *tab, int size)
yading@10: {
yading@10:     int i;
yading@10:     AVLFG prng;
yading@10: 
yading@10:     av_lfg_init(&prng, 1);
yading@10:     for(i=0;i<size;i++) {
yading@10:         tab[i] = av_lfg_get(&prng) % 256;
yading@10:     }
yading@10: }
yading@10: 
yading@10: static void help(void)
yading@10: {
yading@10:     printf("motion-test [-h]\n"
yading@10:            "test motion implementations\n");
yading@10: }
yading@10: 
yading@10: #define NB_ITS 500
yading@10: 
yading@10: int dummy;
yading@10: 
yading@10: static void test_motion(const char *name,
yading@10:                  me_cmp_func test_func, me_cmp_func ref_func)
yading@10: {
yading@10:     int x, y, d1, d2, it;
yading@10:     uint8_t *ptr;
yading@10:     int64_t ti;
yading@10:     printf("testing '%s'\n", name);
yading@10: 
yading@10:     /* test correctness */
yading@10:     for(it=0;it<20;it++) {
yading@10: 
yading@10:         fill_random(img1, WIDTH * HEIGHT);
yading@10:         fill_random(img2, WIDTH * HEIGHT);
yading@10: 
yading@10:         for(y=0;y<HEIGHT-17;y++) {
yading@10:             for(x=0;x<WIDTH-17;x++) {
yading@10:                 ptr = img2 + y * WIDTH + x;
yading@10:                 d1 = test_func(NULL, img1, ptr, WIDTH, 8);
yading@10:                 d2 = ref_func(NULL, img1, ptr, WIDTH, 8);
yading@10:                 if (d1 != d2) {
yading@10:                     printf("error: mmx=%d c=%d\n", d1, d2);
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:     }
yading@10:     emms_c();
yading@10: 
yading@10:     /* speed test */
yading@10:     ti = av_gettime();
yading@10:     d1 = 0;
yading@10:     for(it=0;it<NB_ITS;it++) {
yading@10:         for(y=0;y<HEIGHT-17;y++) {
yading@10:             for(x=0;x<WIDTH-17;x++) {
yading@10:                 ptr = img2 + y * WIDTH + x;
yading@10:                 d1 += test_func(NULL, img1, ptr, WIDTH, 8);
yading@10:             }
yading@10:         }
yading@10:     }
yading@10:     emms_c();
yading@10:     dummy = d1; /* avoid optimization */
yading@10:     ti = av_gettime() - ti;
yading@10: 
yading@10:     printf("  %0.0f kop/s\n",
yading@10:            (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
yading@10:            (double)(ti / 1000.0));
yading@10: }
yading@10: 
yading@10: 
yading@10: int main(int argc, char **argv)
yading@10: {
yading@10:     AVCodecContext *ctx;
yading@10:     int c;
yading@10:     DSPContext cctx, mmxctx;
yading@10:     int flags[2] = { AV_CPU_FLAG_MMX, AV_CPU_FLAG_MMXEXT };
yading@10:     int flags_size = HAVE_MMXEXT ? 2 : 1;
yading@10: 
yading@10:     if (argc > 1) {
yading@10:         help();
yading@10:         return 1;
yading@10:     }
yading@10: 
yading@10:     printf("ffmpeg motion test\n");
yading@10: 
yading@10:     ctx = avcodec_alloc_context3(NULL);
yading@10:     ctx->flags |= CODEC_FLAG_BITEXACT;
yading@10:     memset(&cctx, 0, sizeof(cctx));
yading@10:     ff_dsputil_init(&cctx, ctx);
yading@10:     for (c = 0; c < flags_size; c++) {
yading@10:         int x;
yading@10:         av_force_cpu_flags(flags[c]);
yading@10:         memset(&mmxctx, 0, sizeof(mmxctx));
yading@10:         ff_dsputil_init(&mmxctx, ctx);
yading@10: 
yading@10:         for (x = 0; x < 2; x++) {
yading@10:             printf("%s for %dx%d pixels\n", c ? "mmx2" : "mmx",
yading@10:                    x ? 8 : 16, x ? 8 : 16);
yading@10:             test_motion("mmx",     mmxctx.pix_abs[x][0], cctx.pix_abs[x][0]);
yading@10:             test_motion("mmx_x2",  mmxctx.pix_abs[x][1], cctx.pix_abs[x][1]);
yading@10:             test_motion("mmx_y2",  mmxctx.pix_abs[x][2], cctx.pix_abs[x][2]);
yading@10:             test_motion("mmx_xy2", mmxctx.pix_abs[x][3], cctx.pix_abs[x][3]);
yading@10:         }
yading@10:     }
yading@10:     av_free(ctx);
yading@10: 
yading@10:     return 0;
yading@10: }