2025-07-24 13:55:40 +02:00

144 lines
3.3 KiB
Nix

{
stdenv,
fetchgit,
lib,
meson,
ninja,
pkg-config,
makeFontsConf,
openssl,
libdrm,
libevent,
libyaml,
gst_all_1,
gtest,
graphviz,
doxygen,
python3,
python3Packages,
udev,
libpisp,
withTracing ? lib.meta.availableOn stdenv.hostPlatform lttng-ust,
lttng-ust, # withTracing
withQcam ? false,
qt6, # withQcam
libtiff, # withQcam
}:
stdenv.mkDerivation rec {
pname = "libcamera";
version = "0.5.1";
src = fetchgit {
url = "https://git.libcamera.org/libcamera/libcamera.git";
rev = "v${version}";
hash = "sha256-JV5sa/jiqubcenSeYC4jlB/RgGJt3o1HTIyy7U4Ljlg=";
};
outputs = [
"out"
"dev"
];
postPatch = ''
patchShebangs src/py/ utils/
'';
# libcamera signs the IPA module libraries at install time, but they are then
# modified by stripping and RPATH fixup. Therefore, we need to generate the
# signatures again ourselves. For reproducibility, we use a static private key.
#
# If this is not done, libcamera will still try to load them, but it will
# isolate them in separate processes, which can cause crashes for IPA modules
# that are not designed for this (notably ipa_rpi.so).
preBuild = ''
ninja src/ipa-priv-key.pem
install -D ${./ipa-priv-key.pem} src/ipa-priv-key.pem
'';
postFixup = ''
../src/ipa/ipa-sign-install.sh src/ipa-priv-key.pem $out/lib/libcamera/ipa_*.so
'';
strictDeps = true;
buildInputs = [
# IPA and signing
openssl
# gstreamer integration
gst_all_1.gstreamer
gst_all_1.gst-plugins-base
# cam integration
libevent
libdrm
# hotplugging
udev
# pycamera
python3Packages.pybind11
# yamlparser
libyaml
gtest
]
++ lib.optionals stdenv.hostPlatform.isAarch [ libpisp ]
++ lib.optionals withTracing [ lttng-ust ]
++ lib.optionals withQcam [
libtiff
qt6.qtbase
qt6.qttools
];
nativeBuildInputs = [
meson
ninja
pkg-config
python3
python3Packages.jinja2
python3Packages.pyyaml
python3Packages.ply
python3Packages.sphinx
graphviz
doxygen
openssl
]
++ lib.optional withQcam qt6.wrapQtAppsHook;
mesonFlags = [
"-Dv4l2=true"
(lib.mesonEnable "tracing" withTracing)
(lib.mesonEnable "qcam" withQcam)
"-Dlc-compliance=disabled" # tries unconditionally to download gtest when enabled
# Avoid blanket -Werror to evade build failures on less
# tested compilers.
"-Dwerror=false"
# Documentation breaks binary compatibility.
# Given that upstream also provides public documentation,
# we can disable it here.
"-Ddocumentation=disabled"
];
# Fixes error on a deprecated declaration
env.NIX_CFLAGS_COMPILE = "-Wno-error=deprecated-declarations";
# Silence fontconfig warnings about missing config
FONTCONFIG_FILE = makeFontsConf { fontDirectories = [ ]; };
meta = with lib; {
description = "Open source camera stack and framework for Linux, Android, and ChromeOS";
homepage = "https://libcamera.org";
changelog = "https://git.libcamera.org/libcamera/libcamera.git/tag/?h=${src.rev}";
license = licenses.lgpl2Plus;
maintainers = with maintainers; [ citadelcore ];
platforms = platforms.linux;
badPlatforms = [
# Mandatory shared libraries.
lib.systems.inspect.platformPatterns.isStatic
];
};
}