From 636db09d73a655a6c2e5317e6cfa2a39d9c5bdf1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kai=20St=C3=BCdemann?= <kstuedemann@yahoo.de>
Date: Thu, 3 Jun 2021 22:11:24 +0200
Subject: [PATCH] videoio(dshow) fix incompatible media type left set on video
 device

---
 modules/videoio/src/cap_dshow.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/videoio/src/cap_dshow.cpp b/modules/videoio/src/cap_dshow.cpp
index cf653f61a7..d80e13a7b5 100644
--- a/modules/videoio/src/cap_dshow.cpp
+++ b/modules/videoio/src/cap_dshow.cpp
@@ -2609,7 +2609,8 @@ static bool setSizeAndSubtype(videoDevice * VD, int attemptWidth, int attemptHei
         return true;
     }else{
         VD->streamConf->SetFormat(tmpType);
-        if( tmpType != NULL )MyDeleteMediaType(tmpType);
+        if( VD->pAmMediaType != NULL)MyDeleteMediaType(VD->pAmMediaType);
+        VD->pAmMediaType = tmpType;
     }
 
     return false;