www.pudn.com > h263_.rar > OpenFiles.cpp

 
 
#include "stdafx.h" 
#include "OpenFiles.h" 
#include  
 
BYTE * OpenImageFile(CString szFilePathName, int *width, int *height, int nType) 
{ 
	BYTE * pImageData = NULL; 
 	switch(nType) 
	{ 
 	case T_bmp: 
 		pImageData = OpenBMP(szFilePathName,width,height); 
		break; 
    case T_yuv: 
 		AfxMessageBox("对YUV序列编码"); 
		break; 
	case T_raw: 
 		pImageData = OpenRAW(szFilePathName,width,height); 
 		break; 
 	case T_sif: 	 
 		pImageData = OpenSIF(szFilePathName,width,height); 
 		break; 
	default: 
 		AfxMessageBox("无法打开的文件！"); 
 		break; 
 	} 
 	if(pImageData) 
 		return pImageData; 
 	else  
 		return NULL; 
} 
 
CString GetNextFileName(CString filename,BOOL flag) 
{ 
	CString tempName = filename; 
	CString tempStr; 
	int ret = filename.Find(".",0); 
	if(ret>0) 
		tempStr = filename.Mid(ret-3,3); 
	else 
		tempStr = filename.Right(3); 
	 
	int tempInt = atoi(tempStr); 
 
	//flag 逻辑值为真，文件名递增；否则文件名递减 
	if(flag) 
		tempInt++; 
	else 
		tempInt--; 
 
	char temp[3]; 
	if(tempInt<0) 
	{ 
		AfxMessageBox("The file name is WRONG !"); 
		return tempName; 
	} 
	else if(tempInt<10) 
	{ 
		temp[0] = '0'; 
		temp[1] = '0'; 
		itoa(tempInt,&temp[2],10); 
	} 
	else if(tempInt<100) 
	{ 
		temp[0] = '0'; 
		itoa(tempInt,&temp[1],10); 
	} 
	else 
		itoa(tempInt,temp,10); 
 
	tempName.Replace(tempStr,temp); 
	return tempName; 
} 
 
BYTE * OpenSIF(CString fileName, int *width, int *height) 
{ 
	BYTE * pData; 
	if(fileName=="") 
		return FALSE; 
 
	*width = 352;//578; 
	*height = 288;//385; 
 	long lFileSize = (*width) * (*height); 
	pData = (BYTE*)new char[lFileSize*3/2]; 
	if(!pData) 
		return NULL; 
 
	CFile file; 
	if((file.Open(fileName,CFile::modeRead|CFile::shareDenyNone))==NULL) 
	{ 
		AfxMessageBox("Can not open the file"); 
		return NULL; 
	} 
 	file.ReadHuge(pData,lFileSize); 
	file.Close(); 
	memset(pData+lFileSize,128,lFileSize/2); 
	return pData; 
	free(pData); 
} 
 
BYTE * OpenBMP(CString fileName, int *width, int *height) 
{ 
	BYTE * pData, * pData1; 
	if(fileName=="") 
		return NULL; 
 
	BITMAPFILEHEADER bmpFileHead; 
	BITMAPINFOHEADER bmpInfo; 
 
	CFile file; 
	if((file.Open(fileName,CFile::modeRead|CFile::shareDenyNone))==NULL) 
	{ 
		AfxMessageBox("Can not open the file"); 
		return NULL; 
	} 
  
	file.SeekToBegin(); 
 
	file.Read(&bmpFileHead,sizeof(BITMAPFILEHEADER)); 
	file.Read(&bmpInfo,sizeof(BITMAPINFOHEADER)); 
	DWORD LineBytes=(DWORD)WIDTHBYTES(bmpInfo.biWidth*bmpInfo.biBitCount); 
    DWORD ImageSize =(DWORD)LineBytes*bmpInfo.biHeight; 
    int NumColors; 
	if(bmpInfo.biClrUsed!=0) 
       NumColors=(DWORD)bmpInfo.biClrUsed; 
	else 
		switch(bmpInfo.biBitCount){ 
		case 1: 
			NumColors=2; 
			break; 
		case 4: 
			NumColors=16; 
			break; 
		case 8: 
			NumColors=256; 
			break; 
		case 24: 
			NumColors=0; 
			break; 
		default: 
			AfxMessageBox("Invalid color numbers!"); 
			file.Close(); 
			return NULL; 
	} 
 
	if(bmpFileHead.bfOffBits!=(DWORD)(NumColors*sizeof(RGBQUAD)+sizeof(BITMAPFILEHEADER) 
							+sizeof(BITMAPINFOHEADER))) 
	{ 
			 
    	AfxMessageBox("offBits 和实际头长度不符"); 
		//	,"Error Message" ,MB_OK|MB_ICONEXCLAMATION); 
		return NULL;  
	} 
 
	pData = (BYTE*)new char[ImageSize]; 
	pData1 = (BYTE*)new char[ImageSize*3/2]; 
	file.Seek(sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+NumColors*sizeof(RGBQUAD),SEEK_SET); 
    file.Read(pData,ImageSize); 
	*width = bmpInfo.biWidth; 
	*height = bmpInfo.biHeight; 
 
	file.Close(); 
 
	int h,w; 
	h=*height; 
	w=*width; 
		for(int i=0;i