Name:           imx471-camera-config
Version:        1.0
Release:        5%{?dist}
Summary:        Sony IMX471 laptop camera tuning and frame rate setup for libcamera
License:        CC0-1.0
URL:            https://gitlab.com/thomasfedb/imx471-webcam-fix
Source0:        imx471.yaml
Source1:        99-imx471-framerate.rules
Source2:        configuration.yaml
BuildArch:      noarch

BuildRequires:  systemd-rpm-macros
Requires:       libcamera-ipa
Requires:       v4l-utils
Requires:       systemd-udev

%description
Configuration for the Sony IMX471 MIPI camera found behind the Intel IPU7 in
the ThinkPad X1 Carbon Gen 14 and ThinkPad X9, for use with libcamera's
software ISP:

- a software ISP tuning file (black level and a generic colour correction
  matrix). It is installed in /etc, which libcamera searches before
  /usr/share: remove this package once libcamera ships its own imx471.yaml.
- a libcamera configuration file enabling temporal noise reduction in the
  GPU software ISP (needs the patched libcamera from the same COPR).
- a udev rule that raises the sensor's vertical blanking for 25 fps, because
  the driver defaults to 57.8 fps (17 ms maximum exposure) and the software
  ISP never changes it.

%prep

%build

%install
install -Dpm0644 %{SOURCE0} %{buildroot}%{_sysconfdir}/libcamera/ipa/simple/imx471.yaml
install -Dpm0644 %{SOURCE1} %{buildroot}%{_udevrulesdir}/99-imx471-framerate.rules
install -Dpm0644 %{SOURCE2} %{buildroot}%{_sysconfdir}/libcamera/configuration.yaml

%post
# Reload explicitly: systemd's file trigger only runs at the end of the
# transaction, after this scriptlet.
udevadm control --reload >/dev/null 2>&1 || :
udevadm trigger --action=add --subsystem-match=video4linux >/dev/null 2>&1 || :

%files
%dir %{_sysconfdir}/libcamera
%dir %{_sysconfdir}/libcamera/ipa
%dir %{_sysconfdir}/libcamera/ipa/simple
%config(noreplace) %{_sysconfdir}/libcamera/ipa/simple/imx471.yaml
%config(noreplace) %{_sysconfdir}/libcamera/configuration.yaml
%{_udevrulesdir}/99-imx471-framerate.rules

%changelog
* Sun Sep 20 2026 Thomas Drake-Brockman <thomas@drake-brockman.id.au> - 1.0-5
- Low light frame rate floor 15 -> 20 fps
- Lighter temporal denoise on luma and tighter motion thresholds, for shorter trails

* Sat Sep 19 2026 Thomas Drake-Brockman <thomas@drake-brockman.id.au> - 1.0-4
- Tuning: 30 fps, falling to 15 fps in low light (needs the patched libcamera)

* Sat Sep 19 2026 Thomas Drake-Brockman <thomas@drake-brockman.id.au> - 1.0-3
- Enable temporal noise reduction via /etc/libcamera/configuration.yaml
- Restore the full-strength colour correction matrix now that chroma noise is filtered

* Sat Sep 19 2026 Thomas Drake-Brockman <thomas@drake-brockman.id.au> - 1.0-2
- Halve the colour correction matrix strength to reduce chroma noise in dim light

* Sat Sep 19 2026 Thomas Drake-Brockman <thomas@drake-brockman.id.au> - 1.0-1
- Initial package