From 8f334b4e41e12457fd1d6c720783b5a85cbb15e7 Mon Sep 17 00:00:00 2001
From: Artur Wieczorek <artwik@wp.pl>
Date: Thu, 25 Sep 2014 11:51:31 +0200
Subject: [PATCH] Fixed assertion warning in MSMF frame grabber

Applied in PR3251 to 2.4 branch
---
 modules/videoio/src/cap_msmf.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/videoio/src/cap_msmf.cpp b/modules/videoio/src/cap_msmf.cpp
index a18417fb6..a92e8d7b5 100644
--- a/modules/videoio/src/cap_msmf.cpp
+++ b/modules/videoio/src/cap_msmf.cpp
@@ -1471,7 +1471,6 @@ void ImageGrabber::stopGrabbing()
 
 HRESULT ImageGrabber::startGrabbing(void)
 {
-    _ComPtr<IMFMediaEvent> pEvent = NULL;
     PROPVARIANT var;
     PropVariantInit(&var);
     HRESULT hr = ig_pSession->SetTopology(0, ig_pTopology);
@@ -1479,6 +1478,7 @@ HRESULT ImageGrabber::startGrabbing(void)
     hr = ig_pSession->Start(&GUID_NULL, &var);
     for(;;)
     {
+        _ComPtr<IMFMediaEvent> pEvent = NULL;
         HRESULT hrStatus = S_OK;
         MediaEventType met;
         if(!ig_pSession) break;