哪位高人可以帮我看看这个啊
#include <stdlib.h>
#include <string.h>
typedef struct tagRleCode{
int attrib;
int lenth;
}RLECODE;
int GenCode(char* OutDirectory,int row,int col,int* data);
int main(int argc,char** argv)
{
char* InputFileName;
char* FileDirectory;
FILE* fpInFile;
int nRows;
int nCols;
char* chTemp;
int* pData;
int i,j;
int nCodes;
InputFileName = (char*)malloc(256*sizeof(char));
if(!InputFileName) return 0;
InputFileName[0]='\0';
fpInFile=NULL;
if(argc<2)
{
printf("Please input the file name\n");
scanf("%s",InputFileName);
}
else
strcpy(InputFileName,argv[1]);
// printf("%s\n",InputFileName);
FileDirectory = (char*)malloc(256*sizeof(char));
if(!FileDirectory)
{
free(InputFileName);
return 0;
}
char* substr = strrchr(InputFileName,'\\');
i = (int)strlen(InputFileName);
j = (int)strlen(substr);
i -= (j-1);
for(j=0;j<i;j++)
FileDirectory[j]=InputFileName[j];
FileDirectory[j]='\0';
fpInFile = fopen(InputFileName,"r");
if(!fpInFile)
{
printf("Can't open file for reading\n");
free(InputFileName);
return 0;
}
chTemp = (char*)malloc(20*sizeof(char));
if(!chTemp)
{
printf("Can't allocate memory\n");
free(InputFileName);
fclose(fpInFile);
return 0;
}
chTemp[0]='\0';
nCodes = 0;
fscanf(fpInFile,"%s",chTemp);
if(0==strcmp(chTemp,"Raster_Data"))
{
fscanf(fpInFile,"%d%d",&nRows,&nCols);
// printf("%d,%d\n",nRows,nCols);
pData = (int*)malloc(nRows*nCols*sizeof(int));
if(pData)
{
for(i=0;i<nRows;i++)
for(j=0;j<nCols;j++)
{
fscanf(fpInFile,"%d",&pData[i*nRows+j]);
}
nCodes = GenCode(FileDirectory,nRows,nCols,pData);
}
}
if(nCodes>0)
{
i = nCodes*sizeof(RLECODE);
j = nRows*nCols*sizeof(int);
printf("The compression ratio is %.4f\n",(float)i/(float)j);
}
free(InputFileName);
free(FileDirectory);
free(chTemp);
fclose(fpInFile);
return 1;
}
//生成游程长度编码
//OutDirectory：输出编码文件的路径；
int GenCode(char* OutDirectory,int row,int col,int* data)
{
FILE* fpOutFile;
char* OutFileName;
int i,j;
int n;
RLECODE code;
int nCode;
nCode = 0;
OutFileName = strcat(OutDirectory,"RLE.text");
fpOutFile=fopen(OutFileName,"w");
if(fpOutFile)
{
for (i=0;i<row;i++)
{
n = 1;
for(j=0;j<col-1;j++)
{
if(data[i*row+j]==data[i*row+j+1])
n += 1;
else
{
code.lenth = n;
code.attrib = data[i*row+j];
n=1;
fprintf(fpOutFile,"(%d,%d) ",code.attrib ,code.lenth );
nCode += 1;
}
}
code.lenth = n;
code.attrib = data[i*row+j];
fprintf(fpOutFile,"(%d,%d) ",code.attrib ,code.lenth );
nCode += 1;
fprintf(fpOutFile,"\n");
}
fclose(fpOutFile);
}
return nCode;
}
