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authorTobias Rapp <t.rapp@noa-audio.com>2015-10-29 09:11:37 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2015-11-19 03:51:38 +0100
commite0569172d6448aaacfd7bc952fcdc17b977814e1 (patch)
treee4bba02c7e45e334233bf9638d09cc87dff4d426 /libavcodec/dct.c
parentd52d5553b8dc557561262b61be104c2fa819f243 (diff)
downloadffmpeg-e0569172d6448aaacfd7bc952fcdc17b977814e1.tar.gz
avutil/file_open: avoid file handle inheritance on Windows
Avoids inheritance of file handles on Windows systems similar to the O_CLOEXEC/FD_CLOEXEC flag on Linux. Fixes file lock issues in Windows applications when a child process is started with handle inheritance enabled (standard input/output redirection) while a FFmpeg transcoding is running in the parent process. Links relevant to the subject: https://msdn.microsoft.com/en-us/library/w7sa2b22.aspx Describes the _wsopen() function and the O_NOINHERIT flag. File handles opened by _wsopen() are inheritable by default. https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425%28v=vs.85%29.aspx Describes handle inheritance when creating new processes. Handle inheritance must be enabled (bInheritHandles = TRUE) e.g. when you want to pass handles for stdin/stdout via lpStartupInfo. Signed-off-by: Tobias Rapp <t.rapp@noa-audio.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 474665346616e446ecd1407002fdf5f88201bf72) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/dct.c')
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