Move functions

plugins/base/utils/transition-helpers.cpp

@@ -0,0 +1,32 @@
+#include "transition-helpers.hpp"
+
+namespace advss {
+
+bool IsFixedLengthTransition(const OBSWeakSource &transition)
+{
+	OBSSourceAutoRelease source = obs_weak_source_get_source(transition);
+	return obs_transition_fixed(source);
+}
+
+obs_source_t *SetSceneItemTransition(const OBSSceneItem &item,
+				     const OBSSourceAutoRelease &transition,
+				     bool show)
+{
+	OBSDataAutoRelease settings = obs_source_get_settings(transition);
+	if (!transition || !settings) {
+		// Set transition to "None"
+		obs_sceneitem_set_transition(item, show, nullptr);
+		return nullptr;
+	}
+
+	// We cannot share the transition source between
+	// scene items without introducing strange graphical
+	// artifacts so we have to create new ones here
+	OBSSourceAutoRelease transitionSource = obs_source_create_private(
+		obs_source_get_id(transition), obs_source_get_name(transition),
+		settings);
+	obs_sceneitem_set_transition(item, show, transitionSource);
+	return transitionSource.Get();
+}
+
+} // namespace advss