C++读取yuv文件
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2022-06-16 23:15:30
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#include
#include <stdio.h>
#include <stdlib.h>
#include “math.h”
#include “memory.h”
using namespace std;
int main(){
FILE *in, *out;
//char data[100000];
int len = 352 * 288 * 3/2; //每帧大小为 h*w*1.5
char *buff = (char *)malloc(len);
cout << "读取文件" << endl;
in = fopen("foreman.yuv","rb");
if(in == nullptr){
cout << "open file foreman failed" << endl;
return 0;
}
out = fopen("output.yuv","wb+");
if(out == nullptr){
cout << "open file output failed" << endl;
return 0;
}
//若要完成多帧,可使用循环读取每一帧 并使用seek函数指定起始位置
fread(buff, sizeof(char), len, in);
fwrite(buff, sizeof(char), len, out);
/*
for(int i = 0; i < 500; i++) cout << data[i] << " ";
fwrite(data, sizeof(char), sizeof(data), out);
cout << endl;
cout << “finish” << endl;
if(out == nullptr){
cout << “写入失败” << endl;
return 0;
}
// cout << “finish” << endl;
*/
fclose(in);
fclose(out);
return 0;
}