libavutil/file_open.h

   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_FILE_OPEN_H
  20 #define AVUTIL_FILE_OPEN_H
  21
  22 #include <stdio.h>
  23
  24 #include "config.h"
  25 #include "attributes.h"
  26
  27 #if HAVE_LIBC_MSVCRT
  28 #define avpriv_fopen_utf8 ff_fopen_utf8
  29 #define avpriv_open ff_open
  30 #define avpriv_tempfile ff_tempfile
  31 #endif
  32
  33  /**
  34  * A wrapper for open() setting O_CLOEXEC.
  35  */
  36 av_warn_unused_result
  37 int avpriv_open(const char *filename, int flags, ...);
  38
  39 /**
  40  * Open a file using a UTF-8 filename.
  41  */
  42 FILE *avpriv_fopen_utf8(const char *path, const char *mode);
  43
  44 /**
  45  * Wrapper to work around the lack of mkstemp() on mingw.
  46  * Also, tries to create file in /tmp first, if possible.
  47  * *prefix can be a character constant; *filename will be allocated internally.
  48  * @return file descriptor of opened file (or negative value corresponding to an
  49  * AVERROR code on error)
  50  * and opened file name in **filename.
  51  * @note On very old libcs it is necessary to set a secure umask before
  52  *       calling this, av_tempfile() can't call umask itself as it is used in
  53  *       libraries and could interfere with the calling application.
  54  */
  55 int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx);
  56
  57 #endif /* AVUTIL_FILE_OPEN_H */