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

{ stdenv, fetchurl
, nasmSupport ? true, nasm ? null # Assembly optimizations
, cpmlSupport ? true # Compaq's fast math library
#, efenceSupport ? false, libefence ? null # Use ElectricFence for malloc debugging
, sndfileFileIOSupport ? false, libsndfile ? null # Use libsndfile, instead of lame's internal routines
, analyzerHooksSupport ? true # Use analyzer hooks
, decoderSupport ? true # mpg123 decoder
, frontendSupport ? true # Build the lame executable
#, mp3xSupport ? false, gtk1 ? null # Build GTK frame analyzer
, mp3rtpSupport ? false # Build mp3rtp
, debugSupport ? false # Debugging (disables optimizations)
}:

assert nasmSupport -> (nasm != null);
#assert efenceSupport -> (libefence != null);
assert sndfileFileIOSupport -> (libsndfile != null);
#assert mp3xSupport -> (analyzerHooksSupport && (gtk1 != null));

let
  mkFlag = optSet: flag: if optSet then "--enable-${flag}" else "--disable-${flag}";
in

with stdenv.lib;
stdenv.mkDerivation rec {
  name = "lame-${version}";
  version = "3.99.5";

  src = fetchurl {
    url = "mirror://sourceforge/lame/${name}.tar.gz";
    sha256 = "1zr3kadv35ii6liia0bpfgxpag27xcivp571ybckpbz4b10nnd14";
  };

  nativeBuildInputs = [ ]
    ++ optional nasmSupport nasm;

  buildInputs = [ ]
    #++ optional efenceSupport libefence
    #++ optional mp3xSupport gtk1
    ++ optional sndfileFileIOSupport libsndfile;

  configureFlags = [
    (mkFlag nasmSupport "nasm")
    (mkFlag cpmlSupport "cpml")
    #(mkFlag efenceSupport "efence")
    (if sndfileFileIOSupport then "--with-fileio=sndfile" else "--with-fileio=lame")
    (mkFlag analyzerHooksSupport "analyzer-hooks")
    (mkFlag decoderSupport "decoder")
    (mkFlag frontendSupport "frontend")
    (mkFlag frontendSupport "dynamic-frontends")
    #(mkFlag mp3xSupport "mp3x")
    (mkFlag mp3rtpSupport "mp3rtp")
    (if debugSupport then "--enable-debug=alot" else "")
  ];

  meta = {
    description = "A high quality MPEG Audio Layer III (MP3) encoder";
    homepage    = http://lame.sourceforge.net;
    license     = licenses.lgpl2;
    maintainers = with maintainers; [ codyopel ];
    platforms   = platforms.all;
  };
}