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FFmpeg/libavutil/wchar_filename.h
Andreas Rheinhardt 1ea3650823 Replace all occurences of av_mallocz_array() by av_calloc()
They do the same.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-20 01:03:52 +02:00

46 lines
1.4 KiB
C

/*
* 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_calloc(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 */