From e21c01708a8e9bdc75435cac249b893143b9b339 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Mon, 21 May 2018 12:07:02 +0300
Subject: [PATCH] videoio: fix lifetime management of data of input frames

---
 modules/videoio/src/cap_ffmpeg.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/videoio/src/cap_ffmpeg.cpp b/modules/videoio/src/cap_ffmpeg.cpp
index 221a63f043..25f7aa60b5 100644
--- a/modules/videoio/src/cap_ffmpeg.cpp
+++ b/modules/videoio/src/cap_ffmpeg.cpp
@@ -223,7 +223,7 @@ public:
         if (!ffmpegCapture ||
            !icvRetrieveFrame_FFMPEG_p(ffmpegCapture, &data, &step, &width, &height, &cn))
             return false;
-        frame.assign(cv::Mat(height, width, CV_MAKETYPE(CV_8U, cn), data, step));
+        cv::Mat(height, width, CV_MAKETYPE(CV_8U, cn), data, step).copyTo(frame);
         return true;
     }
     virtual bool open( const cv::String& filename )