1 files changed, 68 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/phonon/backends/gstreamer.nix b/nixpkgs/pkgs/development/libraries/phonon/backends/gstreamer.nix
new file mode 100644
index 000000000000..67f343d60380
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/phonon/backends/gstreamer.nix
@@ -0,0 +1,68 @@
+{ stdenv, lib, fetchurl, cmake, gst_all_1, phonon, pkgconfig
+, extra-cmake-modules, qtbase ? null, qtx11extras ? null, qt4 ? null
+, withQt5 ? false
+, debug ? false
+}:
+
+with lib;
+
+let
+  v = "4.9.0";
+  pname = "phonon-backend-gstreamer";
+in
+
+assert withQt5 -> qtbase != null;
+assert withQt5 -> qtx11extras != null;
+
+stdenv.mkDerivation rec {
+  name = "${pname}-${if withQt5 then "qt5" else "qt4"}-${v}";
+
+  meta = with stdenv.lib; {
+    homepage = https://phonon.kde.org/;
+    description = "GStreamer backend for Phonon";
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ ttuegel ];
+    license = licenses.lgpl21;
+  };
+
+  src = fetchurl {
+    url = "mirror://kde/stable/phonon/${pname}/${v}/${pname}-${v}.tar.xz";
+    sha256 = "1wc5p1rqglf0n1avp55s50k7fjdzdrhg0gind15k8796w7nfbhyf";
+  };
+
+  # Hardcode paths to useful plugins so the backend doesn't depend
+  # on system paths being set.
+  patches = [ ./gst-plugin-paths.patch ];
+
+  NIX_CFLAGS_COMPILE =
+    let gstPluginPaths =
+          lib.makeSearchPathOutput "lib" "/lib/gstreamer-1.0"
+          (with gst_all_1; [
+            gstreamer
+            gst-plugins-base
+            gst-plugins-good
+            gst-plugins-ugly
+            gst-plugins-bad
+            gst-libav
+          ]);
+    in [
+      # This flag should be picked up through pkgconfig, but it isn't.
+      "-I${gst_all_1.gstreamer.dev}/lib/gstreamer-1.0/include"
+
+      ''-DGST_PLUGIN_PATH_1_0="${gstPluginPaths}"''
+    ];
+
+  buildInputs = with gst_all_1;
+    [ gstreamer gst-plugins-base phonon ]
+    ++ (if withQt5 then [ qtbase qtx11extras ] else [ qt4 ]);
+
+  # cleanup: the build system creates (empty) $out/$out/share/icons (double prefix)
+  # if DESTDIR is unset
+  DESTDIR="/";
+
+  nativeBuildInputs = [ cmake pkgconfig ] ++ optional withQt5 extra-cmake-modules;
+
+  cmakeFlags =
+    [ "-DCMAKE_BUILD_TYPE=${if debug then "Debug" else "Release"}" ]
+    ++ optional withQt5 "-DPHONON_BUILD_PHONON4QT5=ON";
+}