From cc483c609b956317bcbab3c5e754ff39225ef8ec Mon Sep 17 00:00:00 2001
From: Lieven Govaerts <lgo@apache.org>
Date: Sat, 10 Feb 2018 23:29:13 +0100
Subject: [PATCH] =?UTF-8?q?Fix=20a=20crash=20in=20the=20IndependentMultimo?=
=?UTF-8?q?dal=20algorithm=20during=20setup.=20The=20=E2=80=A6=20(#108)?=
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* Fix a crash in the IndependentMultimodal algorithm during setup. The nframes member
variable is not initialized, which means that occasionally the initialize() function
is not called when the first frame is processed.
* package_bgs/IMBS/IMBS.cpp
(BackgroundSubtractorIMBS): Initialize nframes to 0.
* Fix a crash when initializingn not using and the destroying the IndependentMultimodal algorithm.
* package_bgs/IMBS/IMBS.cpp
(BackgroundSubtractorIMBS): initialize bgBins, bgModel and persistenceMap pointers to NULL.
---
package_bgs/IMBS/IMBS.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/package_bgs/IMBS/IMBS.cpp b/package_bgs/IMBS/IMBS.cpp
index b1e177b..d80c3b4 100644
--- a/package_bgs/IMBS/IMBS.cpp
+++ b/package_bgs/IMBS/IMBS.cpp
@@ -53,6 +53,10 @@ BackgroundSubtractorIMBS::BackgroundSubtractorIMBS()
tau_s = 60;
tau_h = 40;
minArea = 30.;
+ nframes = 0;
+ bgBins = NULL;
+ bgModel = NULL;
+ persistenceMap = NULL;
persistencePeriod = samplingPeriod*numSamples / 3.;//ms
initial_tick_count = (double)getTickCount();
@@ -94,6 +98,10 @@ BackgroundSubtractorIMBS::BackgroundSubtractorIMBS(
this->tau_s = tau_s;
this->tau_h = tau_h;
this->minArea = minArea;
+ nframes = 0;
+ bgBins = NULL;
+ bgModel = NULL;
+ persistenceMap = NULL;
if (fps == 0.)
initial_tick_count = (double)getTickCount();
--
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