Add uStreamer service to skycam

Flake lock file updates:

• Updated input 'disko':
    'github:nix-community/disko/7e1b215a0a96efb306ad6440bf706d2b307dc267' (2024-08-01)
  → 'github:nix-community/disko/0257e44f4ad472b54f19a6dd1615aee7fa48ed49' (2024-08-05)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/05405724efa137a0b899cce5ab4dde463b4fd30b' (2024-08-01)
  → 'github:NixOS/nixpkgs/8b5b6723aca5a51edf075936439d9cd3947b7b2c' (2024-08-04)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/9f918d616c5321ad374ae6cb5ea89c9e04bf3e58' (2024-07-31)
  → 'github:NixOS/nixpkgs/d04953086551086b44b6f3c6b7eeb26294f207da' (2024-08-02)
• Updated input 'nixvim':
    'github:nix-community/nixvim/76f309d00fb5a6eeb59c13e9b36b4cf86a209d7f' (2024-08-01)
  → 'github:nix-community/nixvim/4e6974c619bd280789ef3697a73fcf7c20f70819' (2024-08-03)
• Updated input 'nixvim/flake-parts':
    'github:hercules-ci/flake-parts/9227223f6d922fee3c7b190b2cc238a99527bbb7' (2024-07-03)
  → 'github:hercules-ci/flake-parts/8471fe90ad337a8074e957b69ca4d0089218391d' (2024-08-01)
• Updated input 'nixvim/nix-darwin':
    'github:lnl7/nix-darwin/b47af8628624856ad6853168298f1f96364d92d6' (2024-08-01)
  → 'github:lnl7/nix-darwin/f7142b8024d6b70c66fd646e1d099d3aa5bfec49' (2024-08-02)
• Updated input 'plasma-manager':
    'github:nix-community/plasma-manager/b17a2666bcf400cf245528d143597d1480e298f8' (2024-08-03)
  → 'github:nix-community/plasma-manager/61d9342fb471cd3c45a047406428fba7b6fb49ad' (2024-08-04)

flake.lock

@@ -107,11 +107,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722476845,
+        "lastModified": 1722821805,
-        "narHash": "sha256-7gZ8uf3qOox8Vrwd+p9EhUHHLhhK8lis/5KcXGmIaow=",
+        "narHash": "sha256-FGrUPUD+LMDwJsYyNSxNIzFMldtCm8wXiQuyL2PHSrM=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "7e1b215a0a96efb306ad6440bf706d2b307dc267",
+        "rev": "0257e44f4ad472b54f19a6dd1615aee7fa48ed49",
         "type": "github"
       },
       "original": {
@@ -206,11 +206,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1719994518,
+        "lastModified": 1722555600,
-        "narHash": "sha256-pQMhCCHyQGRzdfAkdJ4cIWiw+JNuWsTX7f0ZYSyz0VY=",
+        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "9227223f6d922fee3c7b190b2cc238a99527bbb7",
+        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
         "type": "github"
       },
       "original": {
@@ -407,11 +407,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722500642,
+        "lastModified": 1722609272,
-        "narHash": "sha256-Vls0TQRdplex1JslnBxEk3M26Q1vR+OSg+sk5rBG4DA=",
+        "narHash": "sha256-Kkb+ULEHVmk07AX+OhwyofFxBDpw+2WvsXguUS2m6e4=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "b47af8628624856ad6853168298f1f96364d92d6",
+        "rev": "f7142b8024d6b70c66fd646e1d099d3aa5bfec49",
         "type": "github"
       },
       "original": {
@@ -493,11 +493,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1722421184,
+        "lastModified": 1722630782,
-        "narHash": "sha256-/DJBI6trCeVnasdjUo9pbnodCLZcFqnVZiLUfqLH4jA=",
+        "narHash": "sha256-hMyG9/WlUi0Ho9VkRrrez7SeNlDzLxalm9FwY7n/Noo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9f918d616c5321ad374ae6cb5ea89c9e04bf3e58",
+        "rev": "d04953086551086b44b6f3c6b7eeb26294f207da",
         "type": "github"
       },
       "original": {
@@ -524,11 +524,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1722519197,
+        "lastModified": 1722791413,
-        "narHash": "sha256-VEdJmVU2eLFtLqCjTYJd1J7+Go8idAcZoT11IewFiRg=",
+        "narHash": "sha256-rCTrlCWvHzMCNcKxPE3Z/mMK2gDZ+BvvpEVyRM4tKmU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "05405724efa137a0b899cce5ab4dde463b4fd30b",
+        "rev": "8b5b6723aca5a51edf075936439d9cd3947b7b2c",
         "type": "github"
       },
       "original": {
@@ -567,11 +567,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1722542912,
+        "lastModified": 1722688115,
-        "narHash": "sha256-88fmVMPFs3ZN+W7Nqd3PYukUOfY4jwc5uvMJXnFhJ20=",
+        "narHash": "sha256-Ubk5KzAp2Z4Dzmi81aGgabvy41QXjZMwNikDYm7+jS0=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "76f309d00fb5a6eeb59c13e9b36b4cf86a209d7f",
+        "rev": "4e6974c619bd280789ef3697a73fcf7c20f70819",
         "type": "github"
       },
       "original": {
@@ -591,11 +591,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722693897,
+        "lastModified": 1722804745,
-        "narHash": "sha256-Gpa3Gf60AqshNJKUP5mAmVImFFQ6BsWG+zbqx0JGFD4=",
+        "narHash": "sha256-l6N3QaiDqN2QmHDAxjczQPLPCTv+Kp7PsrtJBltmhTo=",
         "owner": "nix-community",
         "repo": "plasma-manager",
-        "rev": "b17a2666bcf400cf245528d143597d1480e298f8",
+        "rev": "61d9342fb471cd3c45a047406428fba7b6fb49ad",
         "type": "github"
       },
       "original": {

flake.nix

@@ -70,7 +70,7 @@
       overlays = [
         agenix.overlays.default
         (import ./overlays/gnome.nix)
-        (import ./overlays/default.nix)
+        (import ./overlays/libcamera.nix)
         (
           final: prev: {
             unstable = import inputs.nixpkgs-unstable { system = final.system; };
@@ -108,6 +108,12 @@
         };
     in
     {
+      legacyPackages = forEachSystem (system:
+        lib.packagesFromDirectoryRecursive {
+          callPackage = nixpkgs.legacyPackages.${system}.callPackage;
+          directory = ./pkgs;
+        });
+
       nixosConfigurations = {
         atlas = mkNixosSystem { system = "x86_64-linux"; name = "atlas"; };
         eos = mkNixosSystem { system = "x86_64-linux"; name = "eos"; };

hosts/common.nix

@@ -42,6 +42,16 @@
     extraOptions = ''
       experimental-features = nix-command flakes
     '';
+    buildMachines = [
+      {
+        hostName = "10.0.1.79";
+        sshUser = "builder";
+        system = "aarch64-linux";
+        maxJobs = 6;
+        speedFactor = 1;
+      }
+    ];
+    distributedBuilds = true;
     settings = {
       connect-timeout = 5;
       log-lines = 25;

hosts/skycam/default.nix

@@ -6,7 +6,10 @@
     ../server.nix
   ];
 
-  raspberry-pi-nix.board = "bcm2711";
+  raspberry-pi-nix = {
+    board = "bcm2711";
+    libcamera-overlay.enable = false;
+  };
 
   networking = {
     hostId = "731d1660";
@@ -25,9 +28,31 @@
 
   services.openssh.settings.PermitRootLogin = lib.mkForce "prohibit-password";
 
+  systemd.services.ustreamer = {
+    enable = true;
+    description = "uStreamer service";
+    unitConfig = {
+      Type = "simple";
+      ConditionPathExists = "/sys/bus/i2c/drivers/imx708/10-001a/video4linux";
+    };
+    serviceConfig = {
+      ExecStart = ''${pkgs.libcamera}/bin/libcamerify ${pkgs.unstable.ustreamer}/bin/ustreamer \
+        --host=0.0.0.0 \
+        --resolution=4608x2592
+      '';
+      DynamicUser = "yes";
+      SupplementaryGroups = [ "video" "i2c" ];
+      Restart = "always";
+      RestartSec = 10;
+    };
+    wantedBy = [ "network-online.target" ];
+    confinement.mode = "chroot-only";
+  };
+
   environment.systemPackages = with pkgs; [
     git
     neovim
+    libcamera
     libraspberrypi
     raspberrypi-eeprom
     v4l-utils

overlays/0001-Remove-relative-config-lookups.patch

@@ -0,0 +1,142 @@
+From 57128bb78f56cadf9e2dcca5ba4d710c3bd478a7 Mon Sep 17 00:00:00 2001
+From: Jordan Holt <jordan@vimium.com>
+Date: Mon, 5 Aug 2024 21:53:09 +0100
+Subject: [PATCH] Remove relative config lookups
+
+---
+ src/libcamera/ipa_manager.cpp      | 16 ----------
+ src/libcamera/ipa_proxy.cpp        | 48 ++----------------------------
+ src/libcamera/pipeline_handler.cpp | 21 ++-----------
+ 3 files changed, 4 insertions(+), 81 deletions(-)
+
+diff --git a/src/libcamera/ipa_manager.cpp b/src/libcamera/ipa_manager.cpp
+index f4e0b633..6d5bbd05 100644
+--- a/src/libcamera/ipa_manager.cpp
++++ b/src/libcamera/ipa_manager.cpp
+@@ -131,22 +131,6 @@ IPAManager::IPAManager()
+ 				<< "No IPA found in '" << modulePaths << "'";
+ 	}
+ 
+-	/*
+-	 * When libcamera is used before it is installed, load IPAs from the
+-	 * same build directory as the libcamera library itself.
+-	 */
+-	std::string root = utils::libcameraBuildPath();
+-	if (!root.empty()) {
+-		std::string ipaBuildPath = root + "src/ipa";
+-		constexpr int maxDepth = 2;
+-
+-		LOG(IPAManager, Info)
+-			<< "libcamera is not installed. Adding '"
+-			<< ipaBuildPath << "' to the IPA search path";
+-
+-		ipaCount += addDir(ipaBuildPath.c_str(), maxDepth);
+-	}
+-
+ 	/* Finally try to load IPAs from the installed system path. */
+ 	ipaCount += addDir(IPA_MODULE_DIR);
+ 
+diff --git a/src/libcamera/ipa_proxy.cpp b/src/libcamera/ipa_proxy.cpp
+index 69975d8f..cd9284a3 100644
+--- a/src/libcamera/ipa_proxy.cpp
++++ b/src/libcamera/ipa_proxy.cpp
+@@ -122,33 +122,11 @@ std::string IPAProxy::configurationFile(const std::string &name,
+ 		}
+ 	}
+ 
+-	std::string root = utils::libcameraSourcePath();
+-	if (!root.empty()) {
+-		/*
+-		 * When libcamera is used before it is installed, load
+-		 * configuration files from the source directory. The
+-		 * configuration files are then located in the 'data'
+-		 * subdirectory of the corresponding IPA module.
+-		 */
+-		std::string ipaConfDir = root + "src/ipa/" + ipaName + "/data";
+-
+-		LOG(IPAProxy, Info)
+-			<< "libcamera is not installed. Loading IPA configuration from '"
+-			<< ipaConfDir << "'";
+-
+-		std::string confPath = ipaConfDir + "/" + name;
++	for (const auto &dir : utils::split(IPA_CONFIG_DIR, ":")) {
++		std::string confPath = dir + "/" + ipaName + "/" + name;
+ 		ret = stat(confPath.c_str(), &statbuf);
+ 		if (ret == 0 && (statbuf.st_mode & S_IFMT) == S_IFREG)
+ 			return confPath;
+-
+-	} else {
+-		/* Else look in the system locations. */
+-		for (const auto &dir : utils::split(IPA_CONFIG_DIR, ":")) {
+-			std::string confPath = dir + "/" + ipaName + "/" + name;
+-			ret = stat(confPath.c_str(), &statbuf);
+-			if (ret == 0 && (statbuf.st_mode & S_IFMT) == S_IFREG)
+-				return confPath;
+-		}
+ 	}
+ 
+ 	if (fallbackName.empty()) {
+@@ -197,28 +175,6 @@ std::string IPAProxy::resolvePath(const std::string &file) const
+ 		}
+ 	}
+ 
+-	/*
+-	 * When libcamera is used before it is installed, load proxy workers
+-	 * from the same build directory as the libcamera directory itself.
+-	 * This requires identifying the path of the libcamera.so, and
+-	 * referencing a relative path for the proxy workers from that point.
+-	 */
+-	std::string root = utils::libcameraBuildPath();
+-	if (!root.empty()) {
+-		std::string ipaProxyDir = root + "src/libcamera/proxy/worker";
+-
+-		LOG(IPAProxy, Info)
+-			<< "libcamera is not installed. Loading proxy workers from '"
+-			<< ipaProxyDir << "'";
+-
+-		std::string proxyPath = ipaProxyDir + proxyFile;
+-		if (!access(proxyPath.c_str(), X_OK))
+-			return proxyPath;
+-
+-		return std::string();
+-	}
+-
+-	/* Else try finding the exec target from the install directory. */
+ 	std::string proxyPath = std::string(IPA_PROXY_DIR) + proxyFile;
+ 	if (!access(proxyPath.c_str(), X_OK))
+ 		return proxyPath;
+diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
+index 5ea2ca78..fd8555ca 100644
+--- a/src/libcamera/pipeline_handler.cpp
++++ b/src/libcamera/pipeline_handler.cpp
+@@ -561,25 +561,8 @@ std::string PipelineHandler::configurationFile(const std::string &subdir,
+ 	struct stat statbuf;
+ 	int ret;
+ 
+-	std::string root = utils::libcameraSourcePath();
+-	if (!root.empty()) {
+-		/*
+-		 * When libcamera is used before it is installed, load
+-		 * configuration files from the source directory. The
+-		 * configuration files are then located in the 'data'
+-		 * subdirectory of the corresponding pipeline handler.
+-		 */
+-		std::string confDir = root + "src/libcamera/pipeline/";
+-		confPath = confDir + subdir + "/data/" + name;
+-
+-		LOG(Pipeline, Info)
+-			<< "libcamera is not installed. Loading platform configuration file from '"
+-			<< confPath << "'";
+-	} else {
+-		/* Else look in the system locations. */
+-		confPath = std::string(LIBCAMERA_DATA_DIR)
+-				+ "/pipeline/" + subdir + '/' + name;
+-	}
++	confPath = std::string(LIBCAMERA_DATA_DIR)
++			+ "/pipeline/" + subdir + '/' + name;
+ 
+ 	ret = stat(confPath.c_str(), &statbuf);
+ 	if (ret == 0 && (statbuf.st_mode & S_IFMT) == S_IFREG)
+-- 
+2.44.1
+

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 utils/ src/py/
-      patchShebangs src/py/
     '';
-    mesonFlags = [
+
+    patches = [
+      ./0001-Remove-relative-config-lookups.patch
+    ];
+
+    mesonFlags = old.mesonFlags ++ [
       "--buildtype=release"
-      "-Dpipelines=rpi/vc4,rpi/pisp"
+      "-Dpipelines=rpi/vc4"
-      "-Dipas=rpi/vc4,rpi/pisp"
+      "-Dipas=rpi/vc4"
-      "-Dv4l2=true"
       "-Dgstreamer=enabled"
       "-Dtest=false"
-      "-Dlc-compliance=disabled"
+      "-Dcam=enabled"
-      "-Dcam=disabled"
-      "-Dqcam=disabled"
-      "-Ddocumentation=enabled"
-      "-Dpycamera=enabled"
     ];
   });
+
+  camera-streamer = prev.callPackage ../pkgs/camera-streamer/package.nix {
+    libcamera = final.libcamera;
+  };
 }