cle() at the end of each processing cycle.</p>
    <p><strong>Input data</strong>: pointer to object, derived from <a href="#datastream">LibRaw_abstract_datastream</a>
      class. This object should be initialized and ready to read. This object
      should be destroyed in calling application after use.</p>
    <p><a name="open_file"></a></p>
    <h3>int LibRaw::open_file(const char *filename[,INT64 bigfile_size])</h3>
    <h3>Win32 only: int LibRaw::open_file(const wchar_t *filename[,INT64
      bigfile_s