Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4349 | Serge | 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_H |
||
20 | #define AVUTIL_FILE_H |
||
21 | |||
22 | #include |
||
23 | |||
24 | #include "avutil.h" |
||
25 | |||
26 | /** |
||
27 | * @file |
||
28 | * Misc file utilities. |
||
29 | */ |
||
30 | |||
31 | /** |
||
32 | * Read the file with name filename, and put its content in a newly |
||
33 | * allocated buffer or map it with mmap() when available. |
||
34 | * In case of success set *bufptr to the read or mmapped buffer, and |
||
35 | * *size to the size in bytes of the buffer in *bufptr. |
||
36 | * The returned buffer must be released with av_file_unmap(). |
||
37 | * |
||
38 | * @param log_offset loglevel offset used for logging |
||
39 | * @param log_ctx context used for logging |
||
40 | * @return a non negative number in case of success, a negative value |
||
41 | * corresponding to an AVERROR error code in case of failure |
||
42 | */ |
||
43 | int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, |
||
44 | int log_offset, void *log_ctx); |
||
45 | |||
46 | /** |
||
47 | * Unmap or free the buffer bufptr created by av_file_map(). |
||
48 | * |
||
49 | * @param size size in bytes of bufptr, must be the same as returned |
||
50 | * by av_file_map() |
||
51 | */ |
||
52 | void av_file_unmap(uint8_t *bufptr, size_t size); |
||
53 | |||
54 | /** |
||
55 | * Wrapper to work around the lack of mkstemp() on mingw. |
||
56 | * Also, tries to create file in /tmp first, if possible. |
||
57 | * *prefix can be a character constant; *filename will be allocated internally. |
||
58 | * @return file descriptor of opened file (or -1 on error) |
||
59 | * and opened file name in **filename. |
||
60 | * @note On very old libcs it is necessary to set a secure umask before |
||
61 | * calling this, av_tempfile() can't call umask itself as it is used in |
||
62 | * libraries and could interfere with the calling application. |
||
63 | */ |
||
64 | int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx); |
||
65 | |||
66 | #endif /* AVUTIL_FILE_H */ |