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{ lib, stdenv, fetchFromGitHub, makeWrapper
, SDL, ffmpeg, frei0r, libjack2, libdv, libsamplerate, libexif
, libvorbis, libxml2, movit, pkg-config, sox, fftw, opencv4, SDL2
, gtk2, genericUpdater, common-updater-scripts, libebur128
, jack2, ladspa-sdk, swig, which, ncurses
, enablePython ? false, python
}:
stdenv.mkDerivation rec {
pname = "mlt";
version = "6.26.0";
src = fetchFromGitHub {
owner = "mltframework";
repo = "mlt";
rev = "v${version}";
sha256 = "FPXROiX7A6oB1VMipw3slyhk7q4fO6m9amohnC67lnA=";
};
buildInputs = [
SDL ffmpeg frei0r libjack2 libdv libsamplerate libvorbis libxml2.dev
movit sox libexif gtk2 fftw libebur128 opencv4 SDL2 jack2
ladspa-sdk
] ++ lib.optional enablePython ncurses;
nativeBuildInputs = [ pkg-config makeWrapper which ]
++ lib.optionals enablePython [ python swig ];
# Mostly taken from:
# http://www.kdenlive.org/user-manual/downloading-and-installing-kdenlive/installing-source/installing-mlt-rendering-engine
configureFlags = [
"--avformat-swscale" "--enable-gpl" "--enable-gpl3" "--enable-opengl"
] ++ lib.optional enablePython "--swig-languages=python";
enableParallelBuilding = true;
outPythonPath = lib.optionalString enablePython "$(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 ${outPythonPath}/mlt/__init__.py -e "s|return importlib.import_module('_mlt')|return importlib.import_module('mlt._mlt')|g"
'';
passthru.updateScript = genericUpdater {
inherit pname version;
versionLister = "${common-updater-scripts}/bin/list-git-tags ${src.meta.homepage}";
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;
};
}
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