FFmpeg
wchar_filename.h
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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 
19 #ifndef AVUTIL_WCHAR_FILENAME_H
20 #define AVUTIL_WCHAR_FILENAME_H
21 
22 #ifdef _WIN32
23 #include <windows.h>
24 #include "mem.h"
25 
27 static inline int utf8towchar(const char *filename_utf8, wchar_t **filename_w)
28 {
29  int num_chars;
30  num_chars = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename_utf8, -1, NULL, 0);
31  if (num_chars <= 0) {
32  *filename_w = NULL;
33  return 0;
34  }
35  *filename_w = (wchar_t *)av_calloc(num_chars, sizeof(wchar_t));
36  if (!*filename_w) {
37  errno = ENOMEM;
38  return -1;
39  }
40  MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, *filename_w, num_chars);
41  return 0;
42 }
43 #endif
44 
45 #endif /* AVUTIL_WCHAR_FILENAME_H */
NULL
#define NULL
Definition: coverity.c:32
av_warn_unused_result
#define av_warn_unused_result
Definition: attributes.h:64
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:271
mem.h