# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit flag-o-matic toolchain-funcs

DESCRIPTION="A free commandline encoder for X264/AVC streams"
HOMEPAGE="https://www.videolan.org/developers/x264.html"
if [[ ${PV} == 9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://code.videolan.org/videolan/x264.git"
	SRC_URI=""
else
	# Download https://code.videolan.org/videolan/x264/-/archive/master/x264-master.tar.bz2
	SRC_URI="https://dev.gentoo.org/~aballier/distfiles/x264-${PV}.tar.bz2"
	KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86"
	S="${WORKDIR}/x264-master"
fi

LICENSE="GPL-2"
SLOT="0"
IUSE="avs custom-cflags ffmpeg ffmpegsource +interlaced mp4 +threads"

REQUIRED_USE="ffmpegsource? ( ffmpeg )"

RDEPEND="
	~media-libs/x264-${PV}[interlaced=,threads=]
	ffmpeg? ( media-video/ffmpeg:= )
	ffmpegsource? ( media-libs/ffmpegsource )
	mp4? ( >=media-video/gpac-0.5.2:= )"

ASM_DEP=">=dev-lang/nasm-2.13"
DEPEND="${RDEPEND}
	amd64? ( ${ASM_DEP} )
	x86? ( ${ASM_DEP} )"
BDEPEND="virtual/pkgconfig"

src_configure() {
	tc-export CC

	if [[ ${ABI} == x86 || ${ABI} == amd64 ]]; then
		export AS="nasm"
	else
		export AS="${CC}"
	fi

	# let upstream pick the optimization level by default
	use custom-cflags || filter-flags -O?

	./configure \
		--prefix="${EPREFIX}"/usr \
		--libdir="${EPREFIX}"/usr/$(get_libdir) \
		--system-libx264 \
		--host="${CHOST}" \
		--disable-lsmash \
		$(usex avs "" "--disable-avs") \
		$(usex ffmpeg "" "--disable-lavf --disable-swscale") \
		$(usex ffmpegsource "" "--disable-ffms") \
		$(usex interlaced "" "--disable-interlaced") \
		$(usex mp4 "" "--disable-gpac") \
		$(usex threads "" "--disable-thread") || die

	# this is a nasty workaround for bug #376925 for x264 that also applies
	# here, needed because as upstream doesn't like us fiddling with their CFLAGS
	if use custom-cflags; then
		local cflags
		cflags="$(grep "^CFLAGS=" config.mak | sed 's/CFLAGS=//')"
		cflags="${cflags//$(get-flag O)/}"
		cflags="${cflags//-O? /$(get-flag O) }"
		cflags="${cflags//-g /}"
		sed -i "s:^CFLAGS=.*:CFLAGS=${cflags//:/\\:}:" config.mak
	fi
}