aja-ntv2/default.nix

@@ -2,12 +2,12 @@
   stdenv,
   lib,
   cmake,
-  ntv2-src,
+  aja-src,
   buildApps ? true,
 }:
 stdenv.mkDerivation {
-  name = "ntv2";
+  name = "ajantv2-dev";
-  src = ntv2-src;
+  src = aja-src;
   nativeBuildInputs = [cmake];
 
   cmakeFlags =

aja-ntv2/driver.nix

@@ -2,11 +2,11 @@
   stdenv,
   nukeReferences,
   kernel,
-  ntv2-src,
+  aja-src,
 }:
 stdenv.mkDerivation {
-  name = "ntv2-driver-${kernel.version}";
+  name = "ajantv2-driver-${kernel.version}";
-  src = ntv2-src;
+  src = aja-src;
   patches = [./lol.patch ./newkernels.patch];
   nativeBuildInputs = kernel.moduleBuildDependencies;
   buildInputs = [nukeReferences];

flake.lock

@@ -1,5 +1,21 @@
 {
   "nodes": {
+    "aja-ntv2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1662565853,
+        "narHash": "sha256-rXjKDhQcZwAxsMjCoL21gpWeLWyIXyK/1y+78mhKgeo=",
+        "owner": "aja-video",
+        "repo": "ntv2",
+        "rev": "3a1e91f740e36e43a1ec74ff446a097330e87220",
+        "type": "github"
+      },
+      "original": {
+        "owner": "aja-video",
+        "repo": "ntv2",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -30,44 +46,11 @@
         "type": "indirect"
       }
     },
-    "ntv2-gst-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1692893804,
-        "narHash": "sha256-90TdrsnO5LatLD4dwivOnZG4tGJmNs2tdAsrL7eQF8g=",
-        "owner": "aja-video",
-        "repo": "ntv2-gst",
-        "rev": "33d3a4957088e49ccecd9efa577b87bb0492f738",
-        "type": "github"
-      },
-      "original": {
-        "owner": "aja-video",
-        "repo": "ntv2-gst",
-        "type": "github"
-      }
-    },
-    "ntv2-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1662565853,
-        "narHash": "sha256-rXjKDhQcZwAxsMjCoL21gpWeLWyIXyK/1y+78mhKgeo=",
-        "owner": "aja-video",
-        "repo": "ntv2",
-        "rev": "3a1e91f740e36e43a1ec74ff446a097330e87220",
-        "type": "github"
-      },
-      "original": {
-        "owner": "aja-video",
-        "repo": "ntv2",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
+        "aja-ntv2": "aja-ntv2",
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs"
-        "ntv2-gst-src": "ntv2-gst-src",
-        "ntv2-src": "ntv2-src"
       }
     },
     "systems": {

flake.nix

@@ -1,16 +1,7 @@
 {
   description = "AJA video card software";
-
+  inputs.aja-ntv2 = {
-  inputs.ntv2-src = {
+    url = "github:aja-video/ntv2";
-    type = "github";
-    owner = "aja-video";
-    repo = "ntv2";
-    flake = false;
-  };
-  inputs.ntv2-gst-src = {
-    type = "github";
-    owner = "aja-video";
-    repo = "ntv2-gst";
     flake = false;
   };
 
@@ -18,47 +9,34 @@
     self,
     nixpkgs,
     flake-utils,
-    ntv2-src,
+    aja-ntv2,
-    ntv2-gst-src,
   }:
-  {
+    (
-    overlays.default = final: prev: {
+      flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
-      ntv2 = final.callPackage ./ntv2 { inherit ntv2-src; };
+        pkgs = import nixpkgs {
-      ntv2-gst = final.callPackage ./ntv2-gst { inherit ntv2-gst-src; };
+          inherit system;
-      linuxPackages = prev.linuxPackages.extend
-      (linuxFinal: linuxPrev: {
-        ntv2-driver = linuxFinal.callPackage ./ntv2/driver.nix { inherit ntv2-src; };
-      });
         };
-    nixosModules.default = { config, lib, pkgs, ... }: {
-      options = {
-        ntv2 = {
-          enable = lib.mkOption {
-            type = lib.types.bool;
-            default = false;
-            description = "If enabled, install the AJA driver, utilities, and gstreamer plugin.";
-          };
-        };
-      };
-      config = lib.mkIf config.ntv2.enable {
-        # Apply the overlay to the system nixpkgs
-        nixpkgs.overlays = [ self.overlays.default ];
-        # Include the kernel module...
-        boot.extraModulePackages = [ pkgs.linuxPackages.ntv2-driver ];
-        # ...and load it automatically.
-        boot.kernelModules = [ "ajantv2" ];
-        # Include the utils and demos, and the gstreamer plugin
-        environment.systemPackages = [ pkgs.ntv2 pkgs.ntv2-gst ];
-      };
-    };
-  } // flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
-  let
-    pkgs = import nixpkgs { inherit system; overlays = [ self.overlays.default ]; };
       in {
-    packages = {
+        packages.aja-ntv2-gst = pkgs.callPackage ./ntv2-gst.nix {
-      inherit (pkgs) ntv2 ntv2-gst;
+          ajantv2 = pkgs.callPackage ./aja-ntv2/default.nix {
-      inherit (pkgs.linuxPackages) ntv2-driver;
+            aja-src = aja-ntv2;
+            buildApps = false;
           };
+        };
+      })
+    )
+    // flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+    in {
       formatter = pkgs.alejandra;
-  });
+    })
+    // {
+      overlays.default = final: prev: {
+        ajantv-utils = final.callPackage ./aja-ntv2/default.nix {aja-src = aja-ntv2;};
+        ajantv-driver = final.linuxPackages.callPackage ./aja-ntv2/driver.nix {aja-src = aja-ntv2;};
+        aja-ntv2-gst = self.packages.${prev.system}.aja-ntv2-gst;
+      };
+    };
 }

license.txt

@@ -1,19 +0,0 @@
-Copyright (c) 2023 Sam Willcocks <sam@wlcx.cc>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.

ntv2-gst.nix

@@ -0,0 +1,27 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  autoconf,
+  automake,
+  pkgconfig,
+  libtool,
+  gst_all_1,
+  ajantv2,
+}:
+stdenv.mkDerivation {
+  name = "aja-ntv2-gst";
+  src = fetchFromGitHub {
+    owner = "aja-video";
+    repo = "ntv2-gst";
+    rev = "refs/heads/master";
+    hash = "sha256-90TdrsnO5LatLD4dwivOnZG4tGJmNs2tdAsrL7eQF8g=";
+  };
+  sourceRoot = "source/gst-plugin";
+  patches = [./no.patch];
+
+  nativeBuildInputs = [autoconf automake pkgconfig libtool gst_all_1.gst-plugins-base ajantv2];
+  GST_NTV2 = "${ajantv2}/include";
+  preConfigure = ''
+    ./autogen.sh
+  '';
+}

ntv2-gst/default.nix

@@ -1,22 +0,0 @@
-{
-  stdenv,
-  ntv2-gst-src,
-  autoconf,
-  automake,
-  pkg-config,
-  libtool,
-  gst_all_1,
-  ntv2,
-}:
-stdenv.mkDerivation {
-  name = "ntv2-gst";
-  src = ntv2-gst-src;
-  sourceRoot = "source/gst-plugin";
-  patches = [./no.patch];
-
-  nativeBuildInputs = [autoconf automake pkg-config libtool gst_all_1.gst-plugins-base ntv2];
-  GST_NTV2 = "${ntv2}/include";
-  preConfigure = ''
-    ./autogen.sh
-  '';
-}

readme.md

@@ -7,9 +7,20 @@ gstreamer plugin. This allows you to use Aja video IO cards on NixOS.
 ## Usage
 
 - Add the flake to your system flake's inputs.
-- Enable the module by adding the following to your system config:
+- Apply the overlay to your system's nixpkgs, e.g.
   ```nix
-  ntv2.enable = true;
+  nixpkgs.overlays = [ ajantv2.overlays.default ];
+  ```
+- Add the kernel driver:
+  ```nix
+  # Include the kernel module 
+  boot.extraModulePackages = [pkgs.ajantv-driver];
+  # And load it automatically
+  boot.kernelModules = [ "ajantv2" ];
+  ```
+- Include the utils/demos and gstreamer plugin:
+  ```nix
+  environment.systemPackages = [pkgs.ajantv-utils pkgs.aja-ntv2-gst]
   ```
 
 ## Gstreamer