{
  "queue": {
    "size": 8,
    "strategy": "drop_oldest"
  },
  "graphs": [
    {
      "name": "ppe_logic_gate_demo",
      "nodes": [
        {
          "id": "in",
          "type": "input_rtsp",
          "role": "source",
          "enable": true,
          "url": "rtsp://10.0.0.49:8554/cam",
          "fps": 30,
          "width": 1280,
          "height": 720,
          "use_mpp": true,
          "force_tcp": true
        },
        {
          "id": "pre",
          "type": "preprocess",
          "role": "filter",
          "enable": true,
          "dst_w": 640,
          "dst_h": 640,
          "dst_format": "rgb",
          "resize_mode": "stretch",
          "use_rga": true
        },
        {
          "id": "yolo",
          "type": "ai_yolo",
          "role": "filter",
          "enable": true,
          "infer_fps": 10,
          "model_path": "./models/shoe_detector_openimages_ppe_v1.rknn",
          "model_version": "v8",
          "model_w": 640,
          "model_h": 640,
          "num_classes": 1,
          "conf": 0.35,
          "nms": 0.45,
          "class_filter": [0]
        },
        {
          "id": "trk",
          "type": "tracker",
          "role": "filter",
          "enable": true,
          "mode": "bytetrack_lite",
          "per_class": true,
          "track_classes": [0],
          "max_age_ms": 1500,
          "min_hits": 2
        },
        {
          "id": "logic",
          "type": "logic_gate",
          "role": "filter",
          "enable": true,
          "mode": "simple",
          "anchor_class": 0,
          "boots_class": 0,
          "color_check": {
            "enable": true,
            "method": "hsv",
            "dark_threshold": 80,
            "roi_expand": 1.0
          },
          "debug": true
        },
        {
          "id": "osd",
          "type": "osd",
          "role": "filter",
          "enable": true,
          "draw_bbox": true,
          "draw_text": true,
          "labels": ["shoe"]
        },
        {
          "id": "post",
          "type": "preprocess",
          "role": "filter",
          "enable": true,
          "dst_w": 1280,
          "dst_h": 720,
          "dst_format": "nv12",
          "resize_mode": "stretch",
          "use_rga": true
        },
        {
          "id": "pub",
          "type": "publish",
          "role": "filter",
          "enable": true,
          "codec": "h264",
          "fps": 30,
          "bitrate_kbps": 2000,
          "use_mpp": true,
          "outputs": [
            {"proto": "rtsp_server", "port": 8555, "path": "/live/cam1"}
          ]
        }
      ],
      "edges": [
        ["in", "pre"],
        ["pre", "yolo"],
        ["yolo", "trk"],
        ["trk", "logic"],
        ["logic", "osd"],
        ["osd", "post"],
        ["post", "pub"]
      ]
    }
  ]
}