| /* |
| * 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_FILE_H |
| #define AVUTIL_FILE_H |
| |
| #include <stdint.h> |
| |
| #include "avutil.h" |
| |
| /** |
| * @file |
| * Misc file utilities. |
| */ |
| |
| /** |
| * Read the file with name filename, and put its content in a newly |
| * allocated buffer or map it with mmap() when available. |
| * In case of success set *bufptr to the read or mmapped buffer, and |
| * *size to the size in bytes of the buffer in *bufptr. |
| * Unlike mmap this function succeeds with zero sized files, in this |
| * case *bufptr will be set to NULL and *size will be set to 0. |
| * The returned buffer must be released with av_file_unmap(). |
| * |
| * @param log_offset loglevel offset used for logging |
| * @param log_ctx context used for logging |
| * @return a non negative number in case of success, a negative value |
| * corresponding to an AVERROR error code in case of failure |
| */ |
| av_warn_unused_result |
| int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, |
| int log_offset, void *log_ctx); |
| |
| /** |
| * Unmap or free the buffer bufptr created by av_file_map(). |
| * |
| * @param size size in bytes of bufptr, must be the same as returned |
| * by av_file_map() |
| */ |
| void av_file_unmap(uint8_t *bufptr, size_t size); |
| |
| /** |
| * Wrapper to work around the lack of mkstemp() on mingw. |
| * Also, tries to create file in /tmp first, if possible. |
| * *prefix can be a character constant; *filename will be allocated internally. |
| * @return file descriptor of opened file (or negative value corresponding to an |
| * AVERROR code on error) |
| * and opened file name in **filename. |
| * @note On very old libcs it is necessary to set a secure umask before |
| * calling this, av_tempfile() can't call umask itself as it is used in |
| * libraries and could interfere with the calling application. |
| * @deprecated as fd numbers cannot be passed saftely between libs on some platforms |
| */ |
| int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx); |
| |
| #endif /* AVUTIL_FILE_H */ |
