[FFmpeg-cvslog] Allow other programs to open the same files on Windows.

[Reimar Döffinger]

ffmpeg | branch: master | Reimar Döffinger <Reimar.Doeffinger at gmx.de> | Fri Jan 20 20:27:22 2012 +0100| [ad8173eb818a4de4fc61ac1b3ede886316f20eb5] | committer: Reimar Döffinger

Allow other programs to open the same files on Windows.

In order to match Linux behaviour better our
Windows-specific open() replacement should disable
Windows default file locking.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ad8173eb818a4de4fc61ac1b3ede886316f20eb5
---

 libavformat/os_support.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavformat/os_support.c b/libavformat/os_support.c
index 467053e..913ca53 100644
--- a/libavformat/os_support.c
+++ b/libavformat/os_support.c
@@ -29,6 +29,7 @@
 
 #if defined(_WIN32) && !defined(__MINGW32CE__)
 #include <windows.h>
+#include <share.h>
 
 #undef open
 int ff_win32_open(const char *filename_utf8, int oflag, int pmode)
@@ -44,12 +45,12 @@ int ff_win32_open(const char *filename_utf8, int oflag, int pmode)
     filename_w = av_mallocz(sizeof(wchar_t) * num_chars);
     MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, filename_w, num_chars);
 
-    fd = _wopen(filename_w, oflag, pmode);
+    fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
     av_freep(&filename_w);
 
     /* filename maybe be in CP_ACP */
     if (fd == -1 && !(oflag & O_CREAT))
-        return open(filename_utf8, oflag, pmode);
+        return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
 
     return fd;
 }