{
  "queue": { "size": 8, "strategy": "drop_oldest" },
  "graphs": [
    {
      "name": "cam1_preprocess",
      "nodes": [
        {
          "id": "in_cam1",
          "type": "input_rtsp",
          "role": "source",
          "enable": true,
          "url": "rtsp://10.0.0.9:8554/cam",
          "fps": 25,
          "width": 1920,
          "height": 1080,
          "use_mpp": false,
          "use_ffmpeg": true,
          "force_tcp": true
        },
        {
          "id": "pre_cam1",
          "type": "preprocess",
          "role": "filter",
          "enable": true,
          "dst_w": 640,
          "dst_h": 640,
          "keep_ratio": true,
          "use_rga": true
        },
        {
          "id": "pub_cam1",
          "type": "publish",
          "role": "sink",
          "enable": true,
          "codec": "h264",
          "fps": 25,
          "gop": 50,
          "bitrate_kbps": 2000,
          "use_mpp": true,
          "use_ffmpeg_mux": true,
          "outputs": [
            { "proto": "rtsp_server", "port": 8554, "path": "/live/cam1" }
          ]
        }
      ],
      "edges": [
        ["in_cam1", "pre_cam1"],
        ["pre_cam1", "pub_cam1"]
      ]
    }
  ]
}