nixpkgs/pkgs/development/libraries/libva/default.nix

{ stdenv, lib, fetchurl, libX11, pkgconfig, libXext, libdrm, libXfixes, wayland, libffi
, mesa_noglu ? null
}:

let
  withMesa = mesa_noglu != null;
in stdenv.mkDerivation rec {
  name = "libva-1.6.2";

  src = fetchurl {
    url = "http://www.freedesktop.org/software/vaapi/releases/libva/${name}.tar.bz2";
    sha256 = "1l4bij21shqbfllbxicmqgmay4v509v9hpxyyia9wm7gvsfg05y4";
  };

  buildInputs = [ libX11 libXext pkgconfig libdrm libXfixes wayland libffi mesa_noglu ];

  configureFlags = lib.optionals withMesa [
    "--with-drivers-path=${mesa_noglu.driverLink}/lib/dri"
    "--enable-glx"
  ];

  installFlags = lib.optional withMesa "DESTDIR=$(out)";

  postInstall = lib.optionalString withMesa ''
    cp -r $out/${mesa_noglu.driverLink}/* $out
    cp -r $out/$out/* $out
    rm -rf $out/run $out/$(echo "$out" | cut -d "/" -f2)
  '';

  meta = with stdenv.lib; {
    homepage = http://www.freedesktop.org/wiki/Software/vaapi;
    license = licenses.mit;
    description = "VAAPI library: Video Acceleration API";
    platforms = platforms.unix;
  };
}