[FFmpeg-devel] [PATCH] avutil/file_open: avoid file handle inheritance on Windows
t.rapp at noa-archive.com
Fri Oct 30 11:30:40 CET 2015
On 29.10.2015 09:38, Tobias Rapp wrote:
> Attached patch fixes file lock issues in my Windows application when a
> child process is started with handle inheritance enabled (standard
> input/output redirection) while a FFmpeg transcoding is running in the
> parent process.
> BTW: It would be great if the patch could also be applied to the 2.7/2.8
> release branches.
Forgot to add links relevant to the subject.
Describes the _wsopen() function and the O_NOINHERIT flag. File handles
opened by _wsopen() are inheritable by default.
Describes the CreateFile() function. Not directly relevant here, often
used in cases outside of C/libc. Opens file without inheritance by
default (lpSecurityAttributes is NULL).
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.
More information about the ffmpeg-devel