wchar_filename.h 1.4 KB

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  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #ifndef AVUTIL_WCHAR_FILENAME_H
  19. #define AVUTIL_WCHAR_FILENAME_H
  20. #ifdef _WIN32
  21. #include <windows.h>
  22. #include "mem.h"
  23. av_warn_unused_result
  24. static inline int utf8towchar(const char *filename_utf8, wchar_t **filename_w)
  25. {
  26. int num_chars;
  27. num_chars = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename_utf8, -1, NULL, 0);
  28. if (num_chars <= 0) {
  29. *filename_w = NULL;
  30. return 0;
  31. }
  32. *filename_w = (wchar_t *)av_mallocz_array(num_chars, sizeof(wchar_t));
  33. if (!*filename_w) {
  34. errno = ENOMEM;
  35. return -1;
  36. }
  37. MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, *filename_w, num_chars);
  38. return 0;
  39. }
  40. #endif
  41. #endif /* AVUTIL_WCHAR_FILENAME_H */