|
|
|
|
# roberto
|
|
|
|
|
|
|
|
|
|
Robot
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## Prepare
|
|
|
|
|
sudo systemctl --full --force edit wifi_powersave@.service
|
|
|
|
|
|
|
|
|
|
[Unit]
|
|
|
|
|
Description=Set WiFi power save %i
|
|
|
|
|
After=sys-subsystem-net-devices-wlan0.device
|
|
|
|
|
|
|
|
|
|
[Service]
|
|
|
|
|
Type=oneshot
|
|
|
|
|
RemainAfterExit=yes
|
|
|
|
|
ExecStart=/sbin/iw dev wlan0 set power_save %i
|
|
|
|
|
|
|
|
|
|
[Install]
|
|
|
|
|
WantedBy=sys-subsystem-net-devices-wlan0.device
|
|
|
|
|
|
|
|
|
|
rpi ~$ sudo systemctl disable wifi_powersave@on.service
|
|
|
|
|
rpi ~$ sudo systemctl enable wifi_powersave@off.service
|
|
|
|
|
|
|
|
|
|
## Test certificate
|
|
|
|
|
|
|
|
|
|
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes -subj '/CN=localhost'
|
|
|
|
|
|
|
|
|
|
## Camera test
|
|
|
|
|
|
|
|
|
|
raspivid -a 12 -t 0 -w 1280 -h 720 -vf -ih -fps 30 -l -o tcp://0.0.0.0:5000
|
|
|
|
|
|
|
|
|
|
mplayer -x 1280 -y 720 -geometry 0:0 -fps 200 -demuxer h264es -noborder ffmpeg://tcp://172.16.85.221:5000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
sudo apt install gstreamer1.0-tools
|
|
|
|
|
|
|
|
|
|
Sender (Pi): gst-launch-1.0 -e v4l2src do-timestamp=true ! video/x-h264,width=640,height=480,framerate=30/1 ! h264parse ! rtph264pay config-interval=1 ! gdppay ! udpsink host=192.168.178.20 port=5000
|
|
|
|
|
|
|
|
|
|
Receiver: gst-launch-1.0 -v udpsrc port=5000 ! gdpdepay ! rtph264depay ! avdec_h264 ! fpsdisplaysink sync=false text-overlay=false
|
|
|
|
|
|
|
|
|
|
## documentation
|
|
|
|
|
|
|
|
|
|
https://flask-socketio.readthedocs.io/en/latest/
|
|
|
|
|
|
|
|
|
|
https://github.com/pfertyk/webrtc-working-example
|
|
|
|
|
|
|
|
|
|
https://github.com/nanomosfet/WebRTC-Flask-server/blob/master/webRTCserver/webRTCserver.py
|
|
|
|
|
|
|
|
|
|
http://blog.nirbheek.in/2018/02/gstreamer-webrtc.html
|
|
|
|
|
https://gitlab.freedesktop.org/gstreamer/gst-examples/-/tree/master/webrtc/sendrecv/gst
|
