motion_test.c
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:3k
源码类别:
Windows CE
开发平台:
C/C++
- /* motion test. (c) 2001 Fabrice Bellard. */
- /**
- * @file motion_test.c
- * motion test.
- */
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <sys/time.h>
- #include <unistd.h>
- #include "dsputil.h"
- #include "i386/mmx.h"
- int pix_abs16x16_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_x2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_x2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_x2_c(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_y2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_y2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_y2_c(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_xy2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_xy2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
- int pix_abs16x16_xy2_c(uint8_t *blk1, uint8_t *blk2, int lx);
- typedef int motion_func(uint8_t *blk1, uint8_t *blk2, int lx);
- #define WIDTH 64
- #define HEIGHT 64
- uint8_t img1[WIDTH * HEIGHT];
- uint8_t img2[WIDTH * HEIGHT];
- void fill_random(uint8_t *tab, int size)
- {
- int i;
- for(i=0;i<size;i++) {
- #if 1
- tab[i] = random() % 256;
- #else
- tab[i] = i;
- #endif
- }
- }
- void help(void)
- {
- printf("motion-test [-h]n"
- "test motion implementationsn");
- exit(1);
- }
- int64_t gettime(void)
- {
- struct timeval tv;
- gettimeofday(&tv,NULL);
- return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
- }
- #define NB_ITS 500
- int dummy;
- void test_motion(const char *name,
- motion_func *test_func, motion_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(img1, ptr, WIDTH);
- d2 = ref_func(img1, ptr, WIDTH);
- if (d1 != d2) {
- printf("error: mmx=%d c=%dn", d1, d2);
- }
- }
- }
- }
- emms();
- /* speed test */
- ti = gettime();
- 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(img1, ptr, WIDTH);
- }
- }
- }
- emms();
- dummy = d1; /* avoid optimisation */
- ti = gettime() - ti;
- printf(" %0.0f kop/sn",
- (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
- (double)(ti / 1000.0));
- }
- int main(int argc, char **argv)
- {
- int c;
- for(;;) {
- c = getopt(argc, argv, "h");
- if (c == -1)
- break;
- switch(c) {
- case 'h':
- help();
- break;
- }
- }
- printf("ffmpeg motion testn");
- test_motion("mmx", pix_abs16x16_mmx, pix_abs16x16_c);
- test_motion("mmx_x2", pix_abs16x16_x2_mmx, pix_abs16x16_x2_c);
- test_motion("mmx_y2", pix_abs16x16_y2_mmx, pix_abs16x16_y2_c);
- test_motion("mmx_xy2", pix_abs16x16_xy2_mmx, pix_abs16x16_xy2_c);
- return 0;
- }