2 files changed, 150 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/mlt/default.nix b/nixpkgs/pkgs/development/libraries/mlt/default.nix
new file mode 100644
index 000000000000..d3bcaa2658ba
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/mlt/default.nix
@@ -0,0 +1,66 @@
+{ lib, stdenv, fetchFromGitHub, makeWrapper
+, SDL, ffmpeg_4, frei0r, libjack2, libdv, libsamplerate, libexif
+, libvorbis, libxml2, movit, pkg-config, sox, fftw, opencv4, SDL2
+, gtk2, gitUpdater, libebur128
+, jack2, ladspa-sdk, swig, which, ncurses
+, enablePython ? false, python3
+}:
+
+stdenv.mkDerivation rec {
+  pname = "mlt";
+  version = "6.26.0";
+
+  src = fetchFromGitHub {
+    owner = "mltframework";
+    repo = "mlt";
+    rev = "v${version}";
+    sha256 = "FPXROiX7A6oB1VMipw3slyhk7q4fO6m9amohnC67lnA=";
+  };
+
+  buildInputs = [
+    SDL ffmpeg_4 frei0r libjack2 libdv libsamplerate libvorbis libxml2.dev
+    movit sox libexif gtk2 fftw libebur128 opencv4 SDL2 jack2
+    ladspa-sdk
+  ] ++ lib.optional enablePython ncurses;
+
+  nativeBuildInputs = [ pkg-config makeWrapper which ]
+  ++ lib.optionals enablePython [ python3 swig ];
+
+  strictDeps = true;
+
+  # Mostly taken from:
+  # http://www.kdenlive.org/user-manual/downloading-and-installing-kdenlive/installing-source/installing-mlt-rendering-engine
+  configureFlags = [
+    "--avformat-swscale" "--enable-gpl" "--enable-gpl3" "--enable-opengl"
+  ] ++ lib.optional enablePython "--swig-languages=python";
+
+  enableParallelBuilding = true;
+  outPythonPath = lib.optionalString enablePython "$(toPythonPath $out)";
+
+  postInstall = ''
+    wrapProgram $out/bin/melt --prefix FREI0R_PATH : ${frei0r}/lib/frei0r-1
+
+    # Remove an unnecessary reference to movit.dev.
+    s=${movit.dev}/include
+    t=$(for ((i = 0; i < ''${#s}; i++)); do echo -n X; done)
+    sed -i $out/lib/mlt/libmltopengl.so -e "s|$s|$t|g"
+  '' + lib.optionalString enablePython ''
+    mkdir -p ${outPythonPath}/mlt
+    cp -a src/swig/python/_mlt.so ${outPythonPath}/mlt/
+    cp -a src/swig/python/mlt.py ${outPythonPath}/mlt/__init__.py
+    sed -i ${outPythonPath}/mlt/__init__.py -e "s|return importlib.import_module('_mlt')|return importlib.import_module('mlt._mlt')|g"
+  '';
+
+  passthru.updateScript = gitUpdater {
+    inherit pname version;
+    rev-prefix = "v";
+  };
+
+  meta = with lib; {
+    description = "Open source multimedia framework, designed for television broadcasting";
+    homepage = "https://www.mltframework.org";
+    license = with licenses; [ gpl3Only gpl2Only lgpl21Only ];
+    maintainers = with maintainers; [ tohl peti ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/mlt/qt-5.nix b/nixpkgs/pkgs/development/libraries/mlt/qt-5.nix
new file mode 100644
index 000000000000..5c58aa4f8aec
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/mlt/qt-5.nix
@@ -0,0 +1,84 @@
+{ lib
+, fetchFromGitHub
+, cmake
+, SDL
+, ffmpeg
+, frei0r
+, libjack2
+, libdv
+, libsamplerate
+, libvorbis
+, libxml2
+, movit
+, pkg-config
+, sox
+, qtbase
+, qtsvg
+, fftw
+, vid-stab
+, opencv3
+, ladspa-sdk
+, gitUpdater
+, ladspaPlugins
+, mkDerivation
+, which
+}:
+
+mkDerivation rec {
+  pname = "mlt";
+  version = "7.0.1";
+
+  src = fetchFromGitHub {
+    owner = "mltframework";
+    repo = "mlt";
+    rev = "v${version}";
+    sha256 = "13c5miph9jjbz69dhy0zvbkk5zbb05dr3vraaci0d5fdbrlhyscf";
+  };
+
+  buildInputs = [
+    SDL
+    ffmpeg
+    frei0r
+    libjack2
+    libdv
+    libsamplerate
+    libvorbis
+    libxml2
+    movit
+    pkg-config
+    qtbase
+    qtsvg
+    sox
+    fftw
+    vid-stab
+    opencv3
+    ladspa-sdk
+    ladspaPlugins
+  ];
+
+  nativeBuildInputs = [ cmake which ];
+
+  outputs = [ "out" "dev" ];
+
+  qtWrapperArgs = [
+    "--prefix FREI0R_PATH : ${frei0r}/lib/frei0r-1"
+    "--prefix LADSPA_PATH : ${ladspaPlugins}/lib/ladspa"
+  ];
+
+  passthru = {
+    inherit ffmpeg;
+  };
+
+  passthru.updateScript = gitUpdater {
+    inherit pname version;
+    rev-prefix = "v";
+  };
+
+  meta = with lib; {
+    description = "Open source multimedia framework, designed for television broadcasting";
+    homepage = "https://www.mltframework.org/";
+    license = licenses.gpl3;
+    maintainers = [ maintainers.goibhniu ];
+    platforms = platforms.linux;
+  };
+}