WIP: camera-streamer instead of current webcam stuff

- webcamd replaced by some fun systemd files
- mjpg-streamer replaced by camera-streamer

works with USB and libcamera devices incl raspi cam v3

Author: foosel

scripts/10-install-arducam-mjpg-streamer

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+set -x
+set -e
+
+export LC_ALL=C
+
+source /common.sh
+install_cleanup_trap
+
+apt-get install --yes libavformat-dev libavutil-dev libavcodec-dev libcamera-dev liblivemedia-dev v4l-utils pkg-config xxd build-essential cmake libssl-dev
+
+cp /files/camera-streamer/camera-streamer.zip /tmp/camera-streamer.zip
+unzip /tmp/camera-streamer.zip -d /tmp/camera-streamer
+rm /tmp/camera-streamer.zip
+
+pushd /tmp/camera-streamer/camera-streamer
+  make -j$(nproc)
+  make install
+popd
+rm -rf /tmp/camera-streamer
+
+sed -i 's/^camera_auto_detect=0/camera_auto_detect=1/' /boot/config.txt
+
+cp /files/camera-streamer/camera-streamer.conf /boot/camera-streamer.conf
+
+cp /files/camera-streamer/camera-streamer-libcamera.service /etc/systemd/system/camera-streamer-libcamera.service
+systemctl enable camera-streamer-libcamera.service
+
+cp /files/camera-streamer/camera-streamer-usb.service /etc/systemd/system/camera-streamer-usb.service
+systemctl enable camera-streamer-usb.service
+
+cp /files/camera-streamer/camera-streamer-usb.path /etc/systemd/system/camera-streamer-usb.path
+systemctl enable camera-streamer-usb.path
+
+# prepare multicam template folder
+cp /files/camera-streamer/camera-streamer-usb-multi@.service /etc/systemd/system/camera-streamer-usb-multi@.service
+systemctl enable camera-streamer-usb.service
+
+mkdir -p /boot/camera-streamer.conf.d
+cp /files/camera-streamer/multi-example.conf /boot/camera-streamer.conf.d/example.conf
+
+# clean up the old crap
+systemctl disable webcamd
+rm /root/bin/webcamd
+rm -rf /opt/mjpg-streamer

scripts/10-install-camera-streamer

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+[Unit]
+Description=camera-streamer libcamera
+After=network.target
+ConditionPathExistsGlob=/sys/bus/i2c/drivers/*/*/video4linux
+
+[Service]
+EnvironmentFile=/boot/camera-streamer.conf
+ExecStart=/usr/local/bin/camera-streamer \
+  -camera-type=libcamera \
+  ; YUYV offers best quality in camera-streamer
+  -camera-format=YUYV \
+  -camera-width=${LIBCAMERA_WIDTH} -camera-height=${LIBCAMERA_HEIGHT} \
+  -camera-fps=${LIBCAMERA_FRAMERATE} \
+  -camera-nbufs=2 \
+  -camera-high_res_factor=1 \
+  -camera-low_res_factor=2 \
+  ${LIBCAMERA_OPTIONS}
+
+DynamicUser=yes
+SupplementaryGroups=video i2c
+Restart=always
+RestartSec=10
+Nice=10
+IOSchedulingClass=idle
+IOSchedulingPriority=7
+CPUWeight=20
+AllowedCPUs=1-2
+MemoryMax=250M
+
+[Install]
+WantedBy=multi-user.target

scripts/11-install-libcamera-webcamd

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+[Unit]
+Description=camera-streamer usb %i
+After=network.target
+Conflicts=camera-streamer-usb.service
+ConditionPathExistsGlob=/dev/v4l/by-id/usb-*-video-index0
+
+[Service]
+EnvironmentFile=/boot/camera-streamer.conf.d/%i.conf
+ExecStart=/usr/local/bin/camera-streamer \
+  -http-port=${HTTP_PORT} \
+  -camera-path="${USB_PATH}" \
+  -camera-format=${USB_FORMAT} \
+  -camera-width=${USB_WIDTH} -camera-height=${USB_HEIGHT} \
+  -camera-fps=${USB_FRAMERATE} \
+  -camera-nbufs=2 \
+  -camera-high_res_factor=1 \
+  -camera-low_res_factor=2 \
+  ${USB_OPTIONS}
+
+DynamicUser=yes
+SupplementaryGroups=video i2c
+Restart=always
+RestartSec=10
+Nice=10
+IOSchedulingClass=idle
+IOSchedulingPriority=7
+CPUWeight=20
+AllowedCPUs=1-2
+MemoryMax=250M
+
+[Install]
+WantedBy=multi-user.target

scripts/files/camera-streamer/camera-streamer-libcamera.service

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+[Unit]
+Description=camera-streamer usb autolaunch
+
+[Path]
+PathExistsGlob=/dev/v4l/by-id/usb-*-video-index0
+Unit=camera-streamer-usb.service
+
+[Install]
+WantedBy=multi-user.target

scripts/files/camera-streamer/camera-streamer-usb-multi@.service

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+[Unit]
+Description=camera-streamer usb
+After=network.target
+ConditionPathExistsGlob=/dev/v4l/by-id/usb-*-video-index0
+ConditionPathExistsGlob=!/sys/bus/i2c/drivers/*/*/video4linux
+
+[Service]
+EnvironmentFile=/boot/camera-streamer.conf
+ExecStart=/usr/local/bin/camera-streamer \
+  -camera-format=${USB_FORMAT} \
+  -camera-width=${USB_WIDTH} -camera-height=${USB_HEIGHT} \
+  -camera-fps=${USB_FRAMERATE} \
+  -camera-nbufs=2 \
+  -camera-high_res_factor=1 \
+  -camera-low_res_factor=2 \
+  ${USB_OPTIONS}
+
+DynamicUser=yes
+SupplementaryGroups=video i2c
+Restart=always
+RestartSec=10
+Nice=10
+IOSchedulingClass=idle
+IOSchedulingPriority=7
+CPUWeight=20
+AllowedCPUs=1-2
+MemoryMax=250M
+
+[Install]
+WantedBy=multi-user.target

scripts/files/camera-streamer/camera-streamer-usb.path

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+# DO NOT LEAVE ANY OF THESE FIELDS UNSET
+
+### Options for libcamera based cameras (PiCam, Arducam, ...)
+
+LIBCAMERA_WIDTH=1280
+LIBCAMERA_HEIGHT=720
+LIBCAMERA_FRAMERATE=15
+LIBCAMERA_OPTIONS='-camera-options="AfMode=2" -camera-options="AfRange=2" -log-debug=0'
+# log-debug=0 is a no-op here and used to make camera-streamer happy
+
+### Options for USB based cameras
+
+USB_FORMAT=YUYV
+USB_WIDTH=1280
+USB_HEIGHT=720
+USB_FRAMERATE=15
+USB_OPTIONS='-log-debug=0'
+# log-debug=0 is a no-op here and used to make camera-streamer happy

scripts/files/camera-streamer/camera-streamer-usb.service

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+# Example configuration for a multi camera setup
+#
+# TODO: Explain how to use this
+
+HTTP_PORT=8081
+USB_PATH=/dev/video2
+USB_FORMAT=YUYV
+USB_WIDTH=1280
+USB_HEIGHT=720
+USB_FRAMERATE=15
+USB_OPTIONS='-log-debug=0'
+# log-debug=0 is a no-op here and used to make camera-streamer happy