neues Setup auf Basis von ZOTAC ZBOX PRO PI335 pico

debian 10 vorbereiten
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apt install htop git vim lshw sudo screen tmux

# /etc/vim/vimrc.local erstellen
autocmd BufEnter * set mouse=

# /etc/apt/sources.list alle Zeilen erweitern auf
... main contrib non-free

# /etc/default/grub
# in Zeile GRUB_CMDLINE_LINUX_DEFAULT= einfügen:
rootflags=data=journal

# grub updaten
update-grub2

# Pakete nachinstallieren
apt update
apt install firmware-linux firmware-iwlwifi firmware-realtek wpasupplicant wireless-tools iw gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-alsa alsa-utils v4l-utils

# vi /etc/network/interfaces
# Chaosnetz
allow-hotplug wlo2
iface wlo2 inet dhcp
	wpa-ssid LiveCam
	wpa-psk xxxxxxx
	up iw dev wlo2 set power_save off

iface wlo2 inet6 static
	address fd63:bb49:f2eb:1337::c1/64

# /etc/hosts ergänzen
fd63:bb49:f2eb:1337::c1         cam1
fd63:bb49:f2eb:1337::c2         cam2
fd63:bb49:f2eb:1337::a1         terminal1
fd63:bb49:f2eb:1337::a2         terminal2

useradd -m livecam -s /bin/bash -G video,audio,sudo
passwd livecam # set the usual password
su -l livecam

reboot && exit

Videostream bereitstellen
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v4l2-ctl -d /dev/video0 --set-ctrl=power_line_frequency=1 --set-ctrl=backlight_compensation=1 --stream-lossless --set-fmt-video=width=1920,height=1080,pixelformat=YUYV
gst-launch-1.0 -e rtpbin name=b rtp-profile=avpf uvch264src device=/dev/video0 name=src auto-start=true \
src.vidsrc ! video/x-raw,framerate=30/1,profile=high ! videoscale ! video/x-raw,width=1920,height=1080 ! videoconvert ! x264enc tune=zerolatency bitrate=5000 speed-preset=superfast key-int-max=15 ! rtph264pay ! rtpulpfecenc percentage=50 percentage-important=75 ! rtprtxqueue max-size-packets=1000 ! b.send_rtp_sink_0 \
b.send_rtp_src_0 ! udpsink host=terminal1 port=5001 \
udpsrc address=:: port=5002 ! b.recv_rtcp_sink_0 \
b.send_rtcp_src_0 ! udpsink host=terminal1 port=5003 sync=false async=false

Videostream empfangen
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gst-launch-1.0 -e rtpbin name=b rtp-profile=avpf do-retransmission=true \
udpsrc address=:: port=5001 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! b.recv_rtp_sink_0 b. ! rtpulpfecdec ! rtph264depay ! decodebin ! videoconvert ! fbdevsink device=/dev/fb0 \
udpsrc address=:: port=5003 ! b.recv_rtcp_sink_0 \
b.send_rtcp_src_0 ! udpsink host=cam1 port=5002 sync=false async=false