func: static int write_cvid_header(CinepakEncContext *s, unsigned char *buf, int num_strips, int data_size)
  
  {
  
      buf[0] = 0;
  
      AV_WB24(&buf[1], data_size + CVID_HEADER_SIZE);
  
      AV_WB16(&buf[4], s->w);
  
      AV_WB16(&buf[6], s->h);
  
      AV_WB16(&buf[8], num_strips);
  
  
  
      return CVID_HEADER_SIZE;
  
  }
  