macosx: pause playback on window minimization only if there is an active video output (fixes #5882)

modules/gui/macosx/MainWindow.m

@@ -767,6 +767,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
     if (b_dark_interface)
     {
         [self miniaturize: sender];
+        if ([[VLCMain sharedInstance] activeVideoPlayback])
             [[VLCCoreInteraction sharedInstance] pause];
     }
     else
@@ -1272,7 +1273,10 @@ static VLCMainWindow *_o_sharedInstance = nil;
 - (void)someWindowWillMiniaturize:(NSNotification *)notification
 {
     if([notification object] == o_nonembedded_window || [notification object] == self)
+    {
+        if([[VLCMain sharedInstance] activeVideoPlayback])
             [[VLCCoreInteraction sharedInstance] pause];
+    }
 }
 
 #pragma mark -