Fix crash on double-stop of CvVideoCamera

9 years ago · 3d19de2b58
parent fc742da6e3
commit 3d19de2b58
1 changed files with 8 additions and 0 deletions
--- a/modules/videoio/src/cap_ios_video_camera.mm
+++ b/modules/videoio/src/cap_ios_video_camera.mm
@ -100,6 +100,10 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}

 - (void)start;
 {
+    if (self.running == YES) {
+        return;
+    }
+
    recordingCountDown = 10;
    [super start];

@ -118,6 +122,10 @@ static CGFloat DegreesToRadians(CGFloat degrees) {return degrees * M_PI / 180;}

 - (void)stop;
 {
+    if (self.running == NO) {
+        return;
+    }
+
    [super stop];

    self.videoDataOutput = nil;