From 03a9fd46c73af68fda89526531f9f9f6b2ed0515 Mon Sep 17 00:00:00 2001
From: panxiaochun <997856423@qq.com>
Date: Fri, 28 Oct 2016 11:18:33 +0800
Subject: [PATCH] fix the problem: leak memory when repeatedly start and stop

---
 modules/videoio/src/cap_ios_abstract_camera.mm | 6 +++---
 modules/videoio/src/cap_ios_video_camera.mm    | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/modules/videoio/src/cap_ios_abstract_camera.mm b/modules/videoio/src/cap_ios_abstract_camera.mm
index 79e0c3d7a9..437b920240 100644
--- a/modules/videoio/src/cap_ios_abstract_camera.mm
+++ b/modules/videoio/src/cap_ios_abstract_camera.mm
@@ -203,11 +203,11 @@
         }
 
         [self.captureSession stopRunning];
-        self.captureSession = nil;
+        [self.captureSession release];
     }
 
-    self.captureVideoPreviewLayer = nil;
-    self.videoCaptureConnection = nil;
+    [self.captureVideoPreviewLayer release];
+    [self.videoCaptureConnection release];
     captureSessionLoaded = NO;
 }
 
diff --git a/modules/videoio/src/cap_ios_video_camera.mm b/modules/videoio/src/cap_ios_video_camera.mm
index 54471cee2d..c9c17dbe2b 100644
--- a/modules/videoio/src/cap_ios_video_camera.mm
+++ b/modules/videoio/src/cap_ios_video_camera.mm
@@ -131,7 +131,7 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}
 {
     [super stop];
 
-    self.videoDataOutput = nil;
+    [self.videoDataOutput release];
     if (videoDataOutputQueue) {
         dispatch_release(videoDataOutputQueue);
     }
@@ -144,11 +144,11 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}
             } else {
                 NSLog(@"[Camera] Recording Error: asset writer status is not writing");
             }
-            self.recordAssetWriter = nil;
+            [self.recordAssetWriter release];
         }
 
-        self.recordAssetWriterInput = nil;
-        self.recordPixelBufferAdaptor = nil;
+        [self.recordAssetWriterInput release];
+        [self.recordPixelBufferAdaptor release];
     }
 
     if (self.customPreviewLayer) {