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| author | Kacper Michajłow <kasper93@gmail.com> | 2024-12-09 20:20:02 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2024-12-15 14:02:29 +0100 |
| commit | 92deed973206ce2ffeea843e0584151476365012 (patch) | |
| tree | 6ff91d1ac38e7772cbb3476938454a604e143f86 /libavutil/file.c | |
| parent | 90af8e07b02e690a9fe60aab02a8bccd2cbf3f01 (diff) | |
| download | ffmpeg-92deed973206ce2ffeea843e0584151476365012.tar.gz | |
avutil/file: fix av_file_map file mapping on Windows
This makes the behavior of av_file_map() the same on Windows as it is on
other platforms. The file is opened as read-only, but the mapping is
copy-on-write, allowing the user to write to the memory pages returned
by av_file_map().
This commit fixes libavutil\tests\file.c test, which would crash when
trying to write to a read-only memory page.
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavutil/file.c')
| -rw-r--r-- | libavutil/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/file.c b/libavutil/file.c index db8507286b..4ef940a6c3 100644 --- a/libavutil/file.c +++ b/libavutil/file.c @@ -112,7 +112,7 @@ int av_file_map(const char *filename, uint8_t **bufptr, size_t *size, return -1; } - ptr = MapViewOfFile(mh, FILE_MAP_READ, 0, 0, *size); + ptr = MapViewOfFile(mh, FILE_MAP_COPY, 0, 0, *size); CloseHandle(mh); if (!ptr) { av_log(&file_log_ctx, AV_LOG_ERROR, "Error occurred in MapViewOfFile()\n"); |