tracker/{pt,aruco}: change cv::setNumThreads call site

2 files changed, 3 insertions, 4 deletions

diff --git a/tracker-aruco/ftnoir_tracker_aruco.cpp b/tracker-aruco/ftnoir_tracker_aruco.cpp
index 28eea60e..a3d58c88 100644
--- a/tracker-aruco/ftnoir_tracker_aruco.cpp
+++ b/tracker-aruco/ftnoir_tracker_aruco.cpp
@@ -63,6 +63,8 @@ static const resolution_tuple resolution_choices[] =
 aruco_tracker::aruco_tracker()
 {
     cv::setBreakOnError(true);
+    cv::setNumThreads(1);
+
     // param 2 ignored for Otsu thresholding. it's required to use our fork of Aruco.
     set_detector_params();
 }
@@ -359,8 +361,6 @@ void aruco_tracker::cycle_detection_params()
 
 void aruco_tracker::run()
 {
-    cv::setNumThreads(1);
-
     if (!open_camera())
         return;
 
diff --git a/tracker-pt/ftnoir_tracker_pt.cpp b/tracker-pt/ftnoir_tracker_pt.cpp
index e6cbb6ba..7435e6d7 100644
--- a/tracker-pt/ftnoir_tracker_pt.cpp
+++ b/tracker-pt/ftnoir_tracker_pt.cpp
@@ -31,6 +31,7 @@ Tracker_PT::Tracker_PT(pointer<pt_runtime_traits> const& traits) :
     preview_frame { traits->make_preview(preview_width, preview_height) }
 {
     cv::setBreakOnError(true);
+    cv::setNumThreads(1);
 
     connect(s.b.get(), SIGNAL(saving()), this, SLOT(maybe_reopen_camera()), Qt::DirectConnection);
     connect(&s.fov, SIGNAL(valueChanged(int)), this, SLOT(set_fov(int)), Qt::DirectConnection);
@@ -48,8 +49,6 @@ Tracker_PT::~Tracker_PT()
 
 void Tracker_PT::run()
 {
-    cv::setNumThreads(1);
-
 #ifdef PT_PERF_LOG
     QFile log_file(OPENTRACK_BASE_PATH + "/PointTrackerPerformance.txt");
     if (!log_file.open(QIODevice::WriteOnly | QIODevice::Text)) return;