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.
Regards,
Tobias
>From b54a2177aaf0aef290c0741a63327ca678b4e7d6 Mon Sep 17 00:00:00 2001
From: Tobias Rapp <t.r...@noa-audio.com>
Date: Thu, 29 Oct 2015 09:11:37 +0100
Subject: [PATCH] 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 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.
Signed-off-by: Tobias Rapp <t.r...@noa-audio.com>
---
libavutil/file_open.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavutil/file_open.c b/libavutil/file_open.c
index 3f9a67c..9e76127 100644
--- a/libavutil/file_open.c
+++ b/libavutil/file_open.c
@@ -77,6 +77,9 @@ int avpriv_open(const char *filename, int flags, ...)
#ifdef O_CLOEXEC
flags |= O_CLOEXEC;
#endif
+#ifdef O_NOINHERIT
+ flags |= O_NOINHERIT;
+#endif
fd = open(filename, flags, mode);
#if HAVE_FCNTL
--
1.9.1
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