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  1. Stop SNNF demo：systemctl stop snnf-demo；

  2. Get the format supported by the sensor：

    1. v4l2-ctl --list-formats -d /dev/video40

      snnf_demo_list_format_1.png

    2. v4l2-ctl --list-formats-ext -d /dev/video40

      snnf_demo_list_format_2.png

  3. View the parameters supported by the SNNF Demo：/usr/bin/snnf_demo -h

    Code Block
    # /usr/bin/snnf_demo -h
Version: 1.1.0
Usage: ./usr/bin/snnf_demo [options]
Options:
  -h, --help                Print this help message and exit
  -m, --model ARG           Specify the model (default: pose, support model list: pose, segment, object, humanattr, ocr, lightface, age, face match, tracking, falling, CCPD, VehicleAttr, RTMDet-s, yolov10s, genderAge)
  -v, --video ARG           Specify the video file or device (default: /dev/video0, e.g., /dev/video40, /mnt/test.mp4)
  -f, --format ARG          Specify the video capture format (default: YUYV, only YUYV, UYVY, YUY2, H264, MJPG are supported)
  -s, --size ARG            Specify the video capture size (default: 640x480, e.g., 1920x1080, 1280x720)
  -r, --framerate ARG       Specify the video capture frame rate (default: 30)

  4. Modify /etc/systemd/system/snnf-demo.service：vi /etc/systemd/system/snnf-demo.service

    snnf_demo_param_1.png

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