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handdetect: check CvHaarClassifierCascade is release before being modified.

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Make sure a previous cascade, if it exists, is released before loading a
new XML file onto it.

https://bugzilla.gnome.org/show_bug.cgi?id=752528
This commit is contained in:
Vanessa Chipirrás Navalón 2015-08-17 18:02:28 +02:00 committed by Luis de Bethencourt
parent 00a55d1a69
commit fc03a17430
1 changed files with 4 additions and 0 deletions
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4
ext/opencv/gsthanddetect.c
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@ -289,12 +289,16 @@ gst_handdetect_set_property (GObject * object, guint prop_id,
switch (prop_id) {
case PROP_PROFILE_FIST:
g_free (filter->profile_fist);
if (filter->cvCascade_fist)
cvReleaseHaarClassifierCascade (&filter->cvCascade_fist);
filter->profile_fist = g_value_dup_string (value);
filter->cvCascade_fist =
gst_handdetect_load_profile (filter, filter->profile_fist);
break;
case PROP_PROFILE_PALM:
g_free (filter->profile_palm);
if (filter->cvCascade_palm)
cvReleaseHaarClassifierCascade (&filter->cvCascade_palm);
filter->profile_palm = g_value_dup_string (value);
filter->cvCascade_palm =
gst_handdetect_load_profile (filter, filter->profile_palm);