Arducam's IMX519 camera on Raspberry Pi 0

Various tips to use Arducam's IMX519 camera on Raspberry Pi 0: `libcamera-still` or `gstreamer` and `gst-launch`

#Commands

#Picture at 4K, with DRC post-processing, autofocus (requires several seconds to settle) 

libcamera-still \
  -n \
  -t 5000 \
  -o /tmp/test-q100.jpg \
  --autofocus \
  --width $((2 * 1920)) --height $((2 * 1080)) \
  -q 100 \
  --post-process ./libcamera-apps/assets/drc.json

#Video at 1080p, encoded in H264 

gst-launch-1.0 \
  libcamerasrc \
  ! video/x-raw,colorimetry=bt709,format=NV12,interlace-mode=progressive,width=1920,height=1080,framerate=30/1 \
  ! videoconvert \
  ! v4l2h264enc \
  ! 'video/x-h264,level=(string)4' \
  ! filesink location=captured.h264

#Configuration

#/boot/config.txt

Includes unrelated things. 

[all]

# dtoverlay=vc4-fkms-v3d,cma-64
dtoverlay=vc4-kms-v3d,cma-32
max_framebuffers=1

dtoverlay=dwc2
enable_uart=1
dtoverlay=disable-bt
dtparam=act_led_trigger=actpwr
start_x=1
gpu_mem=32
disable_camera_led=1
disable_splash=1

# dtoverlay=pi3-disable-wifi
dtoverlay=pi3-disable-bt
dtparam=act_led_trigger=none
dtparam=act_led_activelow=on

boot_delay=0

dtoverlay=sdtweak,overclock_50=100
dtoverlay=imx519
dtoverlay=pwm

disable_fw_kms_setup=1

#References

https://github.com/ArduCAM/Arducam-Pivariety-V4L2-Driver/issues/15

https://www.raspberrypi.com/documentation/accessories/camera.html

https://www.raspberrypi.com/documentation/computers/configuration.html

https://www.arducam.com/product/pi-hawk-eye-64mp-af/

#Updates

#Reports

#Notes