自述文件
gstreamer
知识产权
nmap -sP 192.168.31.1/24
检查是否与相机通讯
ls /dev/video *
sudo apt install v4l-utils
v4l2-ctl --list-formats-ext --all -d0
bash -c ' gst-launch-1.0 v4l2src device=/dev/video0 \
! "image/jpeg, width=1280, height=720,type=video,framerate=30/1" \
! jpegdec ! videoflip method=none \
! timeoverlay halignment=right valignment=bottom \
! clocko
