Decklink: add output support

plugins/decklink/decklink-devices.cpp

@@ -0,0 +1,17 @@
+#include "decklink-devices.hpp"
+
+DeckLinkDeviceDiscovery *deviceEnum = nullptr;
+
+void fill_out_devices(obs_property_t *list)
+{
+	deviceEnum->Lock();
+
+	const std::vector<DeckLinkDevice*> &devices = deviceEnum->GetDevices();
+	for (DeckLinkDevice *device : devices) {
+		obs_property_list_add_string(list,
+				device->GetDisplayName().c_str(),
+				device->GetHash().c_str());
+	}
+
+	deviceEnum->Unlock();
+}