cvt_test.c

来自「足球机器人自动程序」· C语言 代码 · 共 43 行

#include <stdio.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>

#include "global.h"
#include "cvt.h"

int main(int argc, char *argv[]) {

	int fdi = open("../data/test.yuv", O_RDONLY);
	if (fdi < 0) {
		perror("open input file");
		return -1;
	}

	int fdo = open("test.bgr", O_CREAT | O_WRONLY | O_TRUNC, 00644);
	if (fdo < 0) {
		perror("open output file");
		return -1;
	}

	unsigned char *src = (unsigned char *)mmap(NULL, YUV_SIZE, PROT_READ, MAP_SHARED, fdi, 0);
	if (!(src + 1)) {
		perror("mmap");
		return -1;
	}
	unsigned char dst[Y_SIZE*4];

	cvt(src, dst);

	if (write(fdo, dst, sizeof(dst)) < 0) {
		perror("write");
	}
	close(fdo);
	close(fdi);
	return 0;
}