贴一个yuv420sp转yuv422的源代码_问答

海思出来的yuv420sp转其他格式的可以自行修改

// yuv420sp-to-yuv422pack.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include "errno.h"
#include
#include
#include
#include

char buff_read[4096 * 4096 * 2];
char buff_write[4096 * 4096 * 2];

void yuv420sp_to_yuv422(char *yuv420, char *yuv422, int width, int height)
{
int i;
int j;

for (i = 0; i < height; i++)
{
for (j = 0; j < width; j++)
{
yuv422[2 * (i*width + j)] = yuv420[i*width + j];
yuv422[2 * (i*width + j) + 1] = yuv420[width * height + ((i - i % 2) / 2)* width + j];
}
}
}

int _tmain(int argc, _TCHAR* argv[])
{
FILE *fp = NULL; //需要注意
FILE *fp_write = NULL; //需要注意
size_t size = 0;
int ret = 11;

//ret = fopen_s(&fp, "yuv420-nv12.yuv", "rb+");
//ret = fopen_s(&fp_write, "yuv420-nv12_write.yuv", "wb+");

ret = fopen_s(&fp, "00_720x576_SP420.yuv", "rb+");//这个文件其实是yuv420p，不是yuv420sp
ret = fopen_s(&fp_write, "00_720x576_SP420_write.yuv", "wb+");

if (NULL == fp)
{
printf("文件打开失败\n");
return -1; //要返回错误代码
}
size = fread(buff_read, 1, 2304*1536*1.5, fp);

//yuv420sp_to_yuv422(buff_read, buff_write, 2304, 1536);
yuv420sp_to_yuv422(buff_read, buff_write, 720, 576);
printf("%d\n", errno);

size = fwrite(buff_write, 1, 720 * 576 * 2, fp_write);

//fwrite(pFrame, nFrameLen, 1, fp);
//fflush(fp);
return 0;

return 0;
}

贴一个yuv420sp转yuv422的源代码

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