#include
#include
#include
#include?
#define?WIDTH?3840?//YUV文件寬度
#define?HEIGHT?1920??//yuv文件高度
using?namespace?std;
/*可能提示fopen不可用，在解決方案-項目?=》屬性?=》c/c++??=》預處理器=》點擊預處理器定義，編輯，加入_CRT_SECURE_NO_WARNINGS，即可。*/
int?main（）
{
	int?cut_frame?=?0;????????//需要截取的第n幀
	int?shift?=?WIDTH*HEIGHT?*?3?/?2;//WIDTH*HEIGHT?*?3?/?2

	int?len_X?=?160;???????????//截取區域x方向長度
	int?len_Y?=?120;???????????//截取區域Y方向長度
	
	int?len_X_half?=?len_X?/?2;
	int?len_Y_half?=?len_Y?/?2;
	int?sum_read?=?len_X*len_Y;
	int?sum_gray?=?WIDTH*HEIGHT;
	int?cut_topleft_coordX?=?1340;//設置截取區域左上角x坐標
	int?cut_topleft_coordY?=?720;?//左上角y坐標

	
	int?j?=?0;
	int?k?=?0;
	int?w?=?0;
	FILE?*pfile;
	FILE?*savefile;
	pfile?=?fopen（“E:\\about_ROI\\C_glacierQp22_frame8.yuv“?“r“）;
	savefile?=?fopen（“E:\\about_ROI\\Cut_C_glacierQp22_frame8.yuv“?“wb+“）;
	if?（pfile?==?NULL）
	{
		printf（“error?input!!“）;
	}
	unsigned?char*?buffer?=?new?unsigned?char[WIDTH*HEIGHT?*?3?/?2]（）;
	unsigned?char*?buffer_Y?=?new?unsigned?char[len_X*len_Y]（）;
	unsigned?char*?buffer_U?=?new?unsigned?char[len_X*len_Y?/?4]（）;
	unsigned?char*?buffer_V?=?new?unsigned?char[len_X*len_Y?/?4]（）;
	unsigned?char*?target_YUV?=?new?unsigned?char[len_X*len_Y?*?3?/?2]（）;

	fseek（pfile?shift?*?cut_frame?SEEK_SET）;?//將文件指針移動到第4幀開頭處
	fread（buffer?1?shift?pfile）;?//將整個第4幀存儲在內存中

	for?（int?i?=?cut_topleft_coordY;?i?	{
		memcpy（buffer_Y?+?j*len_X?buffer?+?cut_topleft_coordX?+?i*WIDTH?len_X）;
		j++;
	}
	for?（int?i?=?cut_topleft_coordY?/?2;?i?	{
		memcpy（buffer_U?+?k*len_X?/?2?buffer?+?WIDTH*HEIGHT?+?cut_topleft_coordX?/?2?+?i*WIDTH?/?2?len_X?/?2）;
		k++;
	}

	for?（int?i?=?cut_topleft_coordY?/?2;?i?
	{
		memcpy（buffer_V?+?w*len_X?/?2?buffer?+?WIDTH*HEIGHT?+?WIDTH*HEIGHT?/?4?+?cut_topleft_coordX?/?2?+?i*WIDTH?/?2?len_X?/?2）;
		w++;

	}
	memcpy（target_YUV?buffer_Y?len_X*len_Y）;
	memcpy（target_YUV?+?len_X*len_Y?buffer_U?len_X*len_Y?/?4）;
	memcpy（target_YUV?+?len_X*len_Y?+?len_X*len_Y?/?4?buffer_V?len_X*len_Y?/?4）;
	free（buffer_Y）;
	free（buffer_V）;
	free（buffer_U）;

	fwrite（target_YUV?1?len_X*len_Y?*?3?/?2?savefile）;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-04?12:23??YUV_ROI\
?????目錄???????????0??2017-12-04?12:17??YUV_ROI\Debug\
?????文件???????62976??2017-12-04?12:17??YUV_ROI\Debug\YUV_ORI.exe
?????文件??????320012??2017-12-04?12:17??YUV_ROI\Debug\YUV_ORI.ilk
?????文件??????774144??2017-12-04?12:17??YUV_ROI\Debug\YUV_ORI.pdb
?????文件??????????56??2017-12-04?12:24??YUV_ROI\README.txt
?????目錄???????????0??2017-12-04?12:21??YUV_ROI\YUV_ORI\
?????文件?????7274496??2017-12-04?12:21??YUV_ROI\YUV_ORI.sdf
?????文件?????????967??2017-12-04?12:04??YUV_ROI\YUV_ORI.sln
?????文件???????17920??2017-12-04?12:21??YUV_ROI\YUV_ORI.v12.suo
?????目錄???????????0??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\
?????文件??????240640??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\vc120.idb
?????文件??????323584??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\vc120.pdb
?????文件????????1282??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.log
?????目錄???????????0??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\
?????文件?????????670??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\cl.command.1.tlog
?????文件????????5438??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\CL.read.1.tlog
?????文件?????????400??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\CL.write.1.tlog
?????文件????????1070??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\link.command.1.tlog
?????文件????????2358??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\link.read.1.tlog
?????文件?????????372??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\link.write.1.tlog
?????文件?????????158??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\YUV_ORI.tlog\YUV_ORI.lastbuildstate
?????文件??????111177??2017-12-04?12:17??YUV_ROI\YUV_ORI\Debug\yuv_ROI.obj
?????文件????????4270??2017-12-04?12:17??YUV_ROI\YUV_ORI\YUV_ORI.vcxproj
?????文件?????????948??2017-12-04?12:13??YUV_ROI\YUV_ORI\YUV_ORI.vcxproj.filters
?????文件????????2431??2017-12-04?12:21??YUV_ROI\YUV_ORI\yuv_ROI.cpp