kdePackages.kamoso: actually fix

pkgs/kde/gear/kamoso/default.nix

@@ -2,6 +2,7 @@
   mkKdeDerivation,
   pkg-config,
   gst_all_1,
+  frei0r,
 }:
 mkKdeDerivation {
   pname = "kamoso";
@@ -10,8 +11,11 @@ mkKdeDerivation {
   extraBuildInputs = [
     gst_all_1.gst-plugins-base
     (gst_all_1.gst-plugins-good.override { qt6Support = true; })
+    gst_all_1.gst-plugins-bad
   ];
 
+  qtWrapperArgs = ["--set FREI0R_PATH ${frei0r}/lib/frei0r-1"];
+
   preFixup = ''
     qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0")
   '';