Add custom packages

pkgs/camera-streamer/package.nix

@@ -0,0 +1,74 @@
+{ stdenv
+, fetchFromGitHub
+
+, cmake
+, gnumake
+, pkg-config
+, xxd
+
+, v4l-utils
+, nlohmann_json
+, ffmpegSupport ? true
+, ffmpeg
+, libcameraSupport ? true
+, libcamera
+, rtspSupport ? true
+, live555
+, webrtcSupport ? true
+, openssl
+
+, lib
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "camera-streamer";
+  version = "0.2.8";
+
+  src = fetchFromGitHub {
+    owner = "ayufan";
+    repo = "camera-streamer";
+    rev = "refs/tags/v${finalAttrs.version}";
+    hash = "sha256-8vV8BMFoDeh22I1/qxk6zttJROaD/lrThBxXHZSPpT4=";
+    fetchSubmodules = true;
+  };
+
+  # Second replacement fixes literal newline in generated version.h.
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace '/usr/local/bin' '/bin' \
+      --replace 'echo "#define' 'echo -e "#define'
+  '';
+
+  env.NIX_CFLAGS_COMPILE = builtins.toString [
+    "-Wno-error=stringop-overflow"
+    "-Wno-error=format"
+    "-Wno-format"
+    "-Wno-format-security"
+    "-Wno-error=unused-result"
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    gnumake
+    pkg-config
+    xxd
+  ];
+
+  dontUseCmakeConfigure = true;
+
+  buildInputs = [ nlohmann_json v4l-utils ]
+    ++ (lib.optional ffmpegSupport ffmpeg)
+    ++ (lib.optional libcameraSupport libcamera)
+    ++ (lib.optional rtspSupport live555)
+    ++ (lib.optional webrtcSupport openssl);
+
+  installFlags = [ "DESTDIR=${builtins.placeholder "out"}" ];
+  preInstall = "mkdir -p $out/bin";
+
+  meta = with lib; {
+    description = "High-performance low-latency camera streamer for Raspberry Pi's";
+    website = "https://github.com/ayufan/camera-streamer";
+    license = licenses.gpl3Only;
+  };
+})
+

pkgs/rpicam-apps/package.nix

@@ -0,0 +1,58 @@
+{ stdenv
+, fetchFromGitHub
+, meson
+, ninja
+, pkg-config
+, boost
+, ffmpeg
+, libcamera
+, libdrm
+, libexif
+, libjpeg
+, libpng
+, libtiff
+, lib
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "rpicam-apps";
+  version = "1.4.1";
+
+  src = fetchFromGitHub {
+    owner = "raspberrypi";
+    repo = "rpicam-apps";
+    rev = "v" + finalAttrs.version;
+    hash = "sha256-3NG2ZE/Ub3lTbfne0LCXuDgLGTPaAAADRdElEbZwvls=";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+  ];
+
+  buildInputs = [
+    boost
+    ffmpeg
+    libcamera
+    libdrm
+    libexif
+    libjpeg
+    libpng
+    libtiff
+  ];
+
+  # Meson is no longer able to pick up Boost automatically:
+  # https://github.com/NixOS/nixpkgs/issues/86131
+  BOOST_INCLUDEDIR = "${lib.getDev boost}/include";
+  BOOST_LIBRARYDIR = "${lib.getLib boost}/lib";
+
+  meta = with lib; {
+    description = ''
+      libcamera-based applications to drive the cameras on a Raspberry Pi platform
+    '';
+    homepage = "https://github.com/raspberrypi/rpicam-apps";
+    license = licenses.bsd2;
+  };
+})
+