Make gst source a flake input

flake.lock

@@ -30,6 +30,22 @@
         "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": {
@@ -50,6 +66,7 @@
       "inputs": {
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
+        "ntv2-gst-src": "ntv2-gst-src",
         "ntv2-src": "ntv2-src"
       }
     },

flake.nix

@@ -1,17 +1,25 @@
 {
   description = "AJA video card software";
+
   inputs.ntv2-src = {
     type = "github";
     owner = "aja-video";
     repo = "ntv2";
     flake = false;
   };
+  inputs.ntv2-gst-src = {
+    type = "github";
+    owner = "aja-video";
+    repo = "ntv2-gst";
+    flake = false;
+  };
 
   outputs = {
     self,
     nixpkgs,
     flake-utils,
     ntv2-src,
+    ntv2-gst-src,
   }:
     (
       flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
@@ -24,6 +32,7 @@
             inherit ntv2-src;
             buildApps = false;
           };
+          inherit ntv2-gst-src;
         };
       })
     )

ntv2-gst.nix

@@ -1,6 +1,6 @@
 {
   stdenv,
-  fetchFromGitHub,
+  ntv2-gst-src,
   autoconf,
   automake,
   pkgconfig,
@@ -10,12 +10,7 @@
 }:
 stdenv.mkDerivation {
   name = "aja-ntv2-gst";
-  src = fetchFromGitHub {
-    owner = "aja-video";
-    repo = "ntv2-gst";
-    rev = "refs/heads/master";
-    hash = "sha256-90TdrsnO5LatLD4dwivOnZG4tGJmNs2tdAsrL7eQF8g=";
-  };
+  src = ntv2-gst-src;
   sourceRoot = "source/gst-plugin";
   patches = [./no.patch];