media-libs/mlt: migrate to lua.eclass

Multi-impl. Uses a custom build system for all language bindings but
fortunately one that has been simple enough to adapt. Builds fine against
all Lua implementations currently in the tree.

Closes: https://bugs.gentoo.org/752753
Signed-off-by: Marek Szuba <marecki@gentoo.org>

2 files changed, 246 insertions, 0 deletions

diff --git a/media-libs/mlt/files/mlt-6.22.1-no_lua_bdepend.patch b/media-libs/mlt/files/mlt-6.22.1-no_lua_bdepend.patch
new file mode 100644
index 000000000000..2b441a2df72e
--- /dev/null
+++ b/media-libs/mlt/files/mlt-6.22.1-no_lua_bdepend.patch
@@ -0,0 +1,11 @@
+--- a/src/swig/lua/build
++++ b/src/swig/lua/build
+@@ -8,7 +8,7 @@
+ 	exit 0
+ fi
+ 
+-path=`which lua 2> /dev/null`
++path=`/bin/true`
+ 
+ if [ $? = 0 ]
+ then
diff --git a/media-libs/mlt/mlt-6.22.1-r100.ebuild b/media-libs/mlt/mlt-6.22.1-r100.ebuild
new file mode 100644
index 000000000000..1645da008141
--- /dev/null
+++ b/media-libs/mlt/mlt-6.22.1-r100.ebuild
@@ -0,0 +1,235 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+LUA_COMPAT=( lua5-{1..4} luajit )
+PYTHON_COMPAT=( python3_{6,7,8,9} )
+
+inherit lua python-single-r1 qmake-utils toolchain-funcs
+
+DESCRIPTION="Open source multimedia framework for television broadcasting"
+HOMEPAGE="https://www.mltframework.org/"
+SRC_URI="https://github.com/mltframework/${PN}/releases/download/v${PV}/${P}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="compressed-lumas cpu_flags_x86_mmx cpu_flags_x86_sse cpu_flags_x86_sse2 debug ffmpeg
+fftw frei0r gtk jack kdenlive kernel_linux libsamplerate lua melt opencv opengl python
+qt5 rtaudio sdl vdpau vidstab xine xml"
+# java perl php tcl
+
+REQUIRED_USE="lua? ( ${LUA_REQUIRED_USE} )
+	python? ( ${PYTHON_REQUIRED_USE} )"
+
+SWIG_DEPEND=">=dev-lang/swig-2.0"
+#	java? ( ${SWIG_DEPEND} >=virtual/jdk-1.5 )
+#	perl? ( ${SWIG_DEPEND} )
+#	php? ( ${SWIG_DEPEND} )
+#	tcl? ( ${SWIG_DEPEND} )
+#	ruby? ( ${SWIG_DEPEND} )
+BDEPEND="
+	virtual/pkgconfig
+	compressed-lumas? ( virtual/imagemagick-tools[png] )
+	lua? ( ${SWIG_DEPEND} virtual/pkgconfig )
+	python? ( ${SWIG_DEPEND} )
+"
+#rtaudio will use OSS on non linux OSes
+DEPEND="
+	>=media-libs/libebur128-1.2.2:=
+	ffmpeg? ( media-video/ffmpeg:0=[vdpau?,-flite] )
+	fftw? ( sci-libs/fftw:3.0= )
+	frei0r? ( media-plugins/frei0r-plugins )
+	gtk? (
+		media-libs/libexif
+		x11-libs/pango
+	)
+	jack? (
+		>=dev-libs/libxml2-2.5
+		media-libs/ladspa-sdk
+		virtual/jack
+	)
+	libsamplerate? ( >=media-libs/libsamplerate-0.1.2 )
+	lua? ( ${LUA_DEPS} )
+	opencv? ( >=media-libs/opencv-3.2.0:= )
+	opengl? ( media-video/movit )
+	python? ( ${PYTHON_DEPS} )
+	qt5? (
+		dev-qt/qtcore:5
+		dev-qt/qtgui:5
+		dev-qt/qtsvg:5
+		dev-qt/qtwidgets:5
+		dev-qt/qtxml:5
+		media-libs/libexif
+		x11-libs/libX11
+	)
+	rtaudio? (
+		>=media-libs/rtaudio-4.1.2
+		kernel_linux? ( media-libs/alsa-lib )
+	)
+	sdl? (
+		media-libs/libsdl2[X,opengl,video]
+		media-libs/sdl2-image
+	)
+	vidstab? ( media-libs/vidstab )
+	xine? ( >=media-libs/xine-lib-1.1.2_pre20060328-r7 )
+	xml? ( >=dev-libs/libxml2-2.5 )"
+#	java? ( >=virtual/jre-1.5 )
+#	perl? ( dev-lang/perl )
+#	php? ( dev-lang/php )
+#	ruby? ( ${RUBY_DEPS} )
+#	sox? ( media-sound/sox )
+#	tcl? ( dev-lang/tcl:0= )
+RDEPEND="${DEPEND}"
+
+DOCS=( AUTHORS NEWS README docs/{framework,melt,mlt{++,-xml}}.txt )
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-6.10.0-swig-underlinking.patch
+	"${FILESDIR}"/${PN}-6.22.1-no_lua_bdepend.patch
+	"${FILESDIR}"/${P}-fix-regression-w-multiple-affine-filters.patch
+)
+
+pkg_setup() {
+	use python && python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# respect CFLAGS LDFLAGS when building shared libraries. Bug #308873
+	for x in python lua; do
+		sed -i "/mlt.so/s/ -lmlt++ /& ${CFLAGS} ${LDFLAGS} /" src/swig/$x/build || die
+	done
+
+	use python && python_fix_shebang src/swig/python
+}
+
+src_configure() {
+	tc-export CC CXX
+
+	local myconf=(
+		--enable-gpl
+		--enable-gpl3
+		--enable-motion-est
+		--target-arch=$(tc-arch)
+		--disable-gtk2
+		--disable-kde
+		--disable-sdl
+		--disable-swfdec
+		$(use_enable debug)
+		$(use_enable cpu_flags_x86_sse sse)
+		$(use_enable cpu_flags_x86_sse2 sse2)
+		$(use_enable ffmpeg avformat)
+		$(use_enable fftw plus)
+		$(use_enable frei0r)
+		$(use_enable gtk gdk)
+		$(use_enable jack jackrack)
+		$(use_enable kdenlive)
+		$(use_enable libsamplerate resample)
+		$(use_enable melt)
+		$(use_enable opencv)
+		$(use_enable opengl)
+		$(use_enable qt5 qt)
+		$(use_enable rtaudio)
+		$(use_enable sdl sdl2)
+		$(use_enable vidstab vid.stab )
+		$(use_enable xine)
+		$(use_enable xml)
+		--disable-sox
+	)
+		#$(use_enable sox) FIXME
+
+	use compressed-lumas && myconf+=( --luma-compress )
+	use ffmpeg && myconf+=( --avformat-swscale )
+	use vdpau && myconf+=( --avformat-vdpau )
+
+	if use qt5 ; then
+		myconf+=(
+			--qt-includedir=$(qt5_get_headerdir)
+			--qt-libdir=$(qt5_get_libdir)
+		)
+	fi
+
+	if use amd64 || use x86 ; then
+		myconf+=( $(use_enable cpu_flags_x86_mmx mmx) )
+	else
+		myconf+=( --disable-mmx )
+	fi
+
+	if ! use melt ; then
+		sed -i -e "s;src/melt;;" Makefile || die
+	fi
+
+	# TODO: add swig language bindings
+	# see also https://www.mltframework.org/twiki/bin/view/MLT/ExtremeMakeover
+
+	local swig_lang=()
+	# not done: java perl php ruby tcl
+	# handled separately: lua
+	for i in python; do
+		use $i && swig_lang+=( $i )
+	done
+	[[ -z "${swig_lang}" ]] && swig_lang=( none )
+
+	econf "${myconf[@]}" --swig-languages="${swig_lang[*]}"
+
+	sed -i -e s/^OPT/#OPT/ config.mak || die
+}
+
+src_compile() {
+	default
+
+	if use lua; then
+		# Only copy sources now to avoid unnecessary rebuilds
+		lua_copy_sources
+
+		lua_compile() {
+			pushd "${BUILD_DIR}"/src/swig/lua > /dev/null || die
+
+			sed -i -e "s| mlt_wrap.cxx| $(lua_get_CFLAGS) mlt_wrap.cxx|" build || die
+			./build
+
+			popd > /dev/null || die
+		}
+		lua_foreach_impl lua_compile
+	fi
+}
+
+src_install() {
+	default
+
+	insinto /usr/share/${PN}
+	doins -r demo
+
+	#
+	# Install SWIG bindings
+	#
+
+	docinto swig
+
+	if use lua; then
+		lua_install() {
+			pushd "${BUILD_DIR}"/src/swig/lua > /dev/null || die
+
+			exeinto "$(lua_get_cmod_dir)"
+			doexe mlt.so
+
+			popd > /dev/null || die
+		}
+		lua_foreach_impl lua_install
+
+		dodoc "${S}"/src/swig/lua/play.lua
+	fi
+
+	if use python; then
+		cd "${S}"/src/swig/python || die
+		python_domodule mlt.py _mlt.so
+		chmod +x "${D}$(python_get_sitedir)/_mlt.so" || die
+		dodoc play.py
+		python_optimize
+	fi
+
+	# not done: java perl php ruby tcl
+}