From ad98e968237df5ad69df4ed5c65f0ff8024befcf Mon Sep 17 00:00:00 2001
From: Colin <colin@uninsane.org>
Date: Tue, 10 Sep 2024 08:06:04 +0000
Subject: [PATCH] gst-launch: ship default plugins

---
 hosts/common/programs/gst-launch.nix | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/hosts/common/programs/gst-launch.nix b/hosts/common/programs/gst-launch.nix
index 785b21fda..3dfd18dcc 100644
--- a/hosts/common/programs/gst-launch.nix
+++ b/hosts/common/programs/gst-launch.nix
@@ -1,6 +1,23 @@
+# basic environment tests:
+# - `gst-launch-1.0 audiotestsrc ! autoaudiosink`
+# - `gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink`
+# more usage here: <https://github.com/matthew1000/gstreamer-cheat-sheet>
 { pkgs, ... }:
 {
   sane.programs.gst-launch = {
-    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.gst_all_1.gstreamer "gst-launch-1.0";
+    packageUnwrapped = (
+      pkgs.linkBinIntoOwnPackage pkgs.gst_all_1.gstreamer "gst-launch-1.0"
+    ).overrideAttrs (base: {
+      # XXX the binaries need `GST_PLUGIN_SYSTEM_PATH_1_0` set to function,
+      # but nixpkgs doesn't set those.
+      nativeBuildInputs = (base.nativeBuildInputs or []) ++ [
+        pkgs.wrapGAppsNoGuiHook
+      ];
+      buildInputs = (base.buildInputs or []) ++ [
+        pkgs.gst_all_1.gst-plugins-base
+        pkgs.gst_all_1.gst-plugins-good
+        pkgs.pipewire
+      ];
+    });
   };
 }