cnstream/source/cns_launcher/configs/osd_configs/osd_synset_words.json

{
  "osd" : {
    "class_name" : "cnstream::Osd",
    "parallelism" : 1,
    "max_input_queue_size" : 20,
    "custom_params" : {
      "label_path" : "../../../../data/models/synset_words.txt" 
    }
  }
}