#include<stdio.h>


void main()
{
  unsigned short buffer; 
  int fic_bit_count=0,k=0;
  unsigned char fic_data[128], fic_byte=0;
  FILE *fp,*fp1;

  fp=fopen("ddo_log1.dat","rb");
  fp1=fopen("fic_extract1.dat","wb");

  if(fp==NULL)
  {
    printf("\n input file error");
  }

  if(fp1==NULL)
  {
    printf("\n output file error");
  }
  while(!feof(fp))
  {
    fread(&buffer,sizeof(unsigned short),1,fp);
    if(buffer&0x1000)
    {
      fic_byte=((fic_byte<<1)|buffer&0x1);
      fic_bit_count++;
      if(fic_bit_count>7)
      {
        fic_bit_count=0;
        fic_data[k++]=fic_byte;
        fic_byte=0;
      }
    }
    else
    {
      fic_bit_count=0;
      if(k>0)
      {
       fwrite(&fic_data[0],sizeof(char),k,fp1);
      }
      k=0;
    }

  

  }

  fclose(fp);
  fclose(fp1);
 

}