{
  "queue": {
    "size": 8,
    "strategy": "drop_oldest"
  },
  "graphs": [
    {
      "name": "sample_region_behavior_intrusion",
      "nodes": [
        {
          "id": "in",
          "type": "input_rtsp",
          "role": "source",
          "enable": true,
          "url": "rtsp://127.0.0.1/live",
          "fps": 25,
          "width": 1920,
          "height": 1080,
          "use_ffmpeg": true,
          "use_mpp": false,
          "force_tcp": true
        },
        {
          "id": "pre",
          "type": "preprocess",
          "role": "filter",
          "enable": true,
          "dst_w": 1920,
          "dst_h": 1080,
          "dst_format": "rgb",
          "dst_packed": true,
          "resize_mode": "stretch",
          "use_rga": true
        },
        {
          "id": "person_det",
          "type": "ai_yolo",
          "role": "filter",
          "enable": true,
          "model_path": "./models/object_det_yolov8n_coco_640_rk3588.rknn",
          "model_version": "v8",
          "model_w": 640,
          "model_h": 640,
          "num_classes": 80,
          "class_filter": [0],
          "conf": 0.35,
          "nms": 0.45
        },
        {
          "id": "trk",
          "type": "tracker",
          "role": "filter",
          "enable": true,
          "mode": "bytetrack_lite",
          "per_class": true,
          "track_classes": [0],
          "high_th": 0.55,
          "low_th": 0.10,
          "iou_th": 0.30,
          "max_age_ms": 1000,
          "min_hits": 2
        },
        {
          "id": "region_evt",
          "type": "region_event",
          "role": "filter",
          "enable": true,
          "events": [
            {
              "type": "intrusion",
              "region_id": "zone_a",
              "roi": { "x": 0.10, "y": 0.10, "w": 0.35, "h": 0.45 },
              "min_duration_ms": 1000
            }
          ]
        },
        {
          "id": "fusion",
          "type": "event_fusion",
          "role": "filter",
          "enable": true
        },
        {
          "id": "osd",
          "type": "osd",
          "role": "filter",
          "enable": true,
          "draw_bbox": true,
          "draw_text": true,
          "labels": ["person"]
        },
        {
          "id": "post",
          "type": "preprocess",
          "role": "filter",
          "enable": true,
          "dst_w": 1920,
          "dst_h": 1080,
          "dst_format": "nv12",
          "resize_mode": "stretch",
          "use_rga": true
        },
        {
          "id": "pub",
          "type": "publish",
          "role": "filter",
          "enable": true,
          "codec": "h264",
          "fps": 25,
          "bitrate_kbps": 2000,
          "outputs": [
            { "proto": "rtsp_server", "port": 8555, "path": "/live/behavior_intrusion" }
          ]
        },
        {
          "id": "alarm",
          "type": "alarm",
          "role": "sink",
          "enable": true,
          "rules": [
            {
              "name": "intrusion_zone_a",
              "use_behavior_events": true,
              "event_types": ["intrusion"],
              "region_ids": ["zone_a"],
              "min_duration_ms": 1000,
              "cooldown_ms": 10000
            }
          ],
          "actions": {
            "log": {
              "enable": true,
              "level": "info"
            }
          }
        }
      ],
      "edges": [
        ["in", "pre"],
        ["pre", "person_det"],
        ["person_det", "trk"],
        ["trk", "region_evt"],
        ["region_evt", "fusion"],
        ["fusion", "osd"],
        ["osd", "post"],
        ["post", "pub"],
        ["pub", "alarm"]
      ]
    }
  ]
}