fixed ndiout flow_id -> video_flow_id

nodes/ndiout/main.cpp

@@ -34,7 +34,7 @@ struct NDIContext {
 class NDIOutNode : public dmf::NodeBase {
     void run() override {
         // --- video flow (optional) ---
-        bool has_video = config().contains("flow_id");
+        bool has_video = config().contains("video_flow_id");
 
         int         width        = 1920;
         int         height       = 1080;
@@ -45,7 +45,7 @@ class NDIOutNode : public dmf::NodeBase {
         uint32_t          video_stride = 0;
 
         if (has_video) {
-            const auto flow_info = config().at("flow_id");
+            const auto flow_info = config().at("video_flow_id");
             flow_id  = flow_info.at("id").get<std::string>();
             width    = flow_info.value("width",   1920);
             height   = flow_info.value("height",  1080);

video-ndi.json

@@ -6,7 +6,7 @@
   "edges": [
     {
       "from": "videoin", "from_port": "video_flow_id",
-      "to":   "ndiout",  "to_port":   "flow_id",
+      "to":   "ndiout",  "to_port":   "video_flow_id",
       "format": { "kind": "video", "width": 1920, "height": 1080, "fps_num": 25, "fps_den": 1 }
     }
   ]