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