/*

  * This file is part of FFmpeg.

  *

  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVUTIL_WCHAR_FILENAME_H
 #define AVUTIL_WCHAR_FILENAME_H
 

 #ifdef _WIN32

 #include <windows.h>
 #include "mem.h"
 

 av_warn_unused_result

 static inline int utf8towchar(const char *filename_utf8, wchar_t **filename_w)
 {
     int num_chars;
     num_chars = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename_utf8, -1, NULL, 0);
     if (num_chars <= 0) {
         *filename_w = NULL;
         return 0;
     }

     *filename_w = (wchar_t *)av_mallocz_array(num_chars, sizeof(wchar_t));

     if (!*filename_w) {
         errno = ENOMEM;
         return -1;
     }
     MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, *filename_w, num_chars);
     return 0;
 }
 #endif
 
 #endif /* AVUTIL_WCHAR_FILENAME_H */