public Stream OpenSubFile(int i)
{
bffilerecord record = GetFileRecord(i);
mStream.Position = record.fileOffset;
var stream = new BufferedStream(mStream, (int)record.fileSize);
stream.SetLength(record.fileSize);
return(stream);
}
public FileStream ExtractFile(int i, string targetPath, int offset = 0)
{
bffilerecord record = GetFileRecord(i);
mStream.Position = record.fileOffset + offset;
var stream = new FileStream(targetPath, FileMode.CreateNew);
// Buffered transfer contents over
byte [] buffer = new byte[1024];
while (mStream.Position < record.fileOffset + record.fileSize)
{
long fileEnd = record.fileOffset + record.fileSize;
long numBytes = fileEnd - mStream.Position < 1024 ? fileEnd - mStream.Position : 1024;
mStream.Read(buffer, 0, (int)numBytes);
stream.Write(buffer, 0, (int)numBytes);
}
return(stream);
}
