cv: gather common init code

1 files changed, 23 insertions, 0 deletions

diff --git a/cv/init.cpp b/cv/init.cpp
new file mode 100644
index 00000000..c9c4650f
--- /dev/null
+++ b/cv/init.cpp
@@ -0,0 +1,23 @@
+#include "init.hpp"
+#include <type_traits>
+#include <opencv2/core.hpp>
+
+[[noreturn]]
+static
+int error_handler(int, const char* fn, const char* msg, const char* filename, int line, void*)
+{
+    fprintf(stderr, "[%s:%d] opencv: %s at %s\n", filename, line, msg, fn);
+    fflush(stderr);
+    std::abort();
+}
+
+void opencv_init()
+{
+    cv::redirectError(error_handler);
+    cv::setBreakOnError(false);
+    cv::setNumThreads(1);
+#ifdef OTR_HAS_CV_IPP
+    cv::ipp::setUseIPP(true);
+    cv::ipp::setUseIPP_NotExact(true);
+#endif
+}