Add uStreamer service to skycam

overlays/libcamera.nix

@@ -1,48 +1,25 @@
-{ libcamera-src
-, libpisp-src
-, ...
-}:
 final: prev:
 {
-  libpisp = final.stdenv.mkDerivation {
-    name = "libpisp";
-    version = "1.0.6";
-    src = libpisp-src;
-    nativeBuildInputs = with final; [ pkg-config meson ninja ];
-    buildInputs = with final; [ nlohmann_json boost ];
-    # Meson is no longer able to pick up Boost automatically.
-    # https://github.com/NixOS/nixpkgs/issues/86131
-    BOOST_INCLUDEDIR = "${prev.lib.getDev final.boost}/include";
-    BOOST_LIBRARYDIR = "${prev.lib.getLib final.boost}/lib";
-  };
-
   libcamera = prev.libcamera.overrideAttrs (old: {
-    version = "0.2.0";
-    src = libcamera-src;
-    buildInputs = old.buildInputs ++ (with final; [
-      libpisp openssl libtiff
-      (python3.withPackages (ps: with ps; [
-        python3-gnutls pybind11 pyyaml ply
-      ]))
-      libglibutil gst_all_1.gst-plugins-base
-    ]);
-    patches = [ ./0001-Always-installed.patch ];
     postPatch = ''
-      patchShebangs utils/
-      patchShebangs src/py/
+      patchShebangs utils/ src/py/
     '';
-    mesonFlags = [
+
+    patches = [
+      ./0001-Remove-relative-config-lookups.patch
+    ];
+
+    mesonFlags = old.mesonFlags ++ [
       "--buildtype=release"
-      "-Dpipelines=rpi/vc4,rpi/pisp"
-      "-Dipas=rpi/vc4,rpi/pisp"
-      "-Dv4l2=true"
+      "-Dpipelines=rpi/vc4"
+      "-Dipas=rpi/vc4"
       "-Dgstreamer=enabled"
       "-Dtest=false"
-      "-Dlc-compliance=disabled"
-      "-Dcam=disabled"
-      "-Dqcam=disabled"
-      "-Ddocumentation=enabled"
-      "-Dpycamera=enabled"
+      "-Dcam=enabled"
     ];
   });
+
+  camera-streamer = prev.callPackage ../pkgs/camera-streamer/package.nix {
+    libcamera = final.libcamera;
+  };
 }