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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | #ifndef AVUTIL_FILE_H |
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| 20 | #define AVUTIL_FILE_H |
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| 21 | |||
| 22 | #include |
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| 23 | |||
| 24 | #include "avutil.h" |
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| 25 | |||
| 26 | /** |
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| 27 | * @file |
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| 28 | * Misc file utilities. |
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| 29 | */ |
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| 30 | |||
| 31 | /** |
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| 32 | * Read the file with name filename, and put its content in a newly |
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| 33 | * allocated buffer or map it with mmap() when available. |
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| 34 | * In case of success set *bufptr to the read or mmapped buffer, and |
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| 35 | * *size to the size in bytes of the buffer in *bufptr. |
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| 36 | * The returned buffer must be released with av_file_unmap(). |
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| 37 | * |
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| 38 | * @param log_offset loglevel offset used for logging |
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| 39 | * @param log_ctx context used for logging |
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| 40 | * @return a non negative number in case of success, a negative value |
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| 41 | * corresponding to an AVERROR error code in case of failure |
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| 42 | */ |
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| 43 | int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, |
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| 44 | int log_offset, void *log_ctx); |
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| 45 | |||
| 46 | /** |
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| 47 | * Unmap or free the buffer bufptr created by av_file_map(). |
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| 48 | * |
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| 49 | * @param size size in bytes of bufptr, must be the same as returned |
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| 50 | * by av_file_map() |
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| 51 | */ |
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| 52 | void av_file_unmap(uint8_t *bufptr, size_t size); |
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| 53 | |||
| 54 | /** |
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| 55 | * Wrapper to work around the lack of mkstemp() on mingw. |
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| 56 | * Also, tries to create file in /tmp first, if possible. |
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| 57 | * *prefix can be a character constant; *filename will be allocated internally. |
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| 58 | * @return file descriptor of opened file (or -1 on error) |
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| 59 | * and opened file name in **filename. |
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| 60 | * @note On very old libcs it is necessary to set a secure umask before |
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| 61 | * calling this, av_tempfile() can't call umask itself as it is used in |
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| 62 | * libraries and could interfere with the calling application. |
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| 63 | */ |
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| 64 | int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx); |
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| 65 | |||
| 66 | #endif /* AVUTIL_FILE_H */ |