tracker/{aruco,pt}: disable opencv multithreading

Less overhead this way.

2 files changed, 10 insertions, 2 deletions

diff --git a/tracker-aruco/ftnoir_tracker_aruco.cpp b/tracker-aruco/ftnoir_tracker_aruco.cpp
index 30f53485..b222ebbb 100644
--- a/tracker-aruco/ftnoir_tracker_aruco.cpp
+++ b/tracker-aruco/ftnoir_tracker_aruco.cpp
@@ -24,14 +24,18 @@ typedef struct {
     int height;
 } resolution_tuple;
 
-static resolution_tuple resolution_choices[] = {
+static resolution_tuple resolution_choices[] =
+{
     { 640, 480 },
     { 320, 240 },
     { 320, 200 },
     { 0, 0 }
 };
 
-Tracker::Tracker() : stop(false), layout(nullptr), videoWidget(nullptr)
+Tracker::Tracker() :
+    stop(false),
+    layout(nullptr),
+    videoWidget(nullptr)
 {
 }
 
@@ -77,6 +81,8 @@ void Tracker::getRT(cv::Matx33d& r_, cv::Vec3d& t_)
 
 void Tracker::run()
 {
+    cv::setNumThreads(0);
+
     int rint = s.resolution;
     if (rint < 0 || rint >= (int)(sizeof(resolution_choices) / sizeof(resolution_tuple)))
         rint = 0;
diff --git a/tracker-pt/ftnoir_tracker_pt.cpp b/tracker-pt/ftnoir_tracker_pt.cpp
index 950dde71..6ff19479 100644
--- a/tracker-pt/ftnoir_tracker_pt.cpp
+++ b/tracker-pt/ftnoir_tracker_pt.cpp
@@ -76,6 +76,8 @@ bool Tracker_PT::get_focal_length(float& ret)
 
 void Tracker_PT::run()
 {
+    cv::setNumThreads(0);
+
 #ifdef PT_PERF_LOG
     QFile log_file(QCoreApplication::applicationDirPath() + "/PointTrackerPerformance.txt");
     if (!log_file.open(QIODevice::WriteOnly | QIODevice::Text)) return;