mirror of
https://gitee.com/openharmony/third_party_ffmpeg
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52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_FILE_H
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#define AVUTIL_FILE_H
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#include "avutil.h"
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/**
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* @file misc file utilities
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*/
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/**
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* Read the file with name filename, and put its content in a newly
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* allocated buffer or map it with mmap() when available.
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* In case of success set *bufptr to the read or mmapped buffer, and
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* *size to the size in bytes of the buffer in *bufptr.
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* The returned buffer must be released with av_file_unmap().
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*
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* @param log_offset loglevel offset used for logging
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* @param log_ctx context used for logging
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* @return a non negative number in case of success, a negative value
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* corresponding to an AVERROR error code in case of failure
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*/
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int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
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int log_offset, void *log_ctx);
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/**
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* Unmap or free the buffer bufptr created by av_file_map().
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*
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* @param size size in bytes of bufptr, must be the same as returned
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* by av_file_map()
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*/
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void av_file_unmap(uint8_t *bufptr, size_t size);
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#endif /* AVUTIL_FILE_H */
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