abrar71 · January 6, 2021 17:01
diff --git a/build-ffmpeg.sh b/build-ffmpeg.sh
 #!/bin/bash

 # HOMEPAGE: https://github.com/markus-perl/ffmpeg-build-script
 # LICENSE: https://github.com/markus-perl/ffmpeg-build-script/blob/master/LICENSE

 PROGNAME=$(basename "$0")
 VERSION=1.21
 CWD=$(pwd)
 PACKAGES="$CWD/packages"
 WORKSPACE="$CWD/workspace"
 CFLAGS="-I$WORKSPACE/include"
 LDFLAGS="-L$WORKSPACE/lib"
 LDEXEFLAGS=""
 EXTRALIBS="-ldl -lpthread -lm -lz"
 CONFIGURE_OPTIONS=()

 # Speed up the process
 # Env Var NUMJOBS overrides automatic detection
 if [[ -n "$NUMJOBS" ]]; then
 	MJOBS="$NUMJOBS"
 elif [[ -f /proc/cpuinfo ]]; then
 	MJOBS=$(grep -c processor /proc/cpuinfo)
 elif [[ "$OSTYPE" == "darwin"* ]]; then
 	MJOBS=$(sysctl -n machdep.cpu.thread_count)
 	CONFIGURE_OPTIONS=("--enable-videotoolbox")
 else
 	MJOBS=4
 fi

 make_dir () {
 	remove_dir "$1"
 	if ! mkdir "$1"; then
 		printf "\n Failed to create dir %s" "$1";
 		exit 1
 	fi
 }

 remove_dir () {
 	if [ -d "$1" ]; then
 		rm -r "$1"
 	fi
 }

 download () {
 	# download url [filename[dirname]]

 	DOWNLOAD_PATH="$PACKAGES"
 	DOWNLOAD_FILE="${2:-"${1##*/}"}"

 	if [[ "$DOWNLOAD_FILE" =~ "tar." ]]; then
 		TARGETDIR="${DOWNLOAD_FILE%.*}"
 		TARGETDIR="${3:-"${TARGETDIR%.*}"}"
 	else
 		TARGETDIR="${3:-"${DOWNLOAD_FILE%.*}"}"
 	fi

 	if [ ! -f "$DOWNLOAD_PATH/$DOWNLOAD_FILE" ]; then
 		echo "Downloading $1 as $DOWNLOAD_FILE"
 		curl -L --silent -o "$DOWNLOAD_PATH/$DOWNLOAD_FILE" "$1"

 		EXITCODE=$?
 		if [ $EXITCODE -ne 0 ]; then
 			echo ""
 			echo "Failed to download $1. Exitcode $EXITCODE. Retrying in 10 seconds";
 			sleep 10
 			curl -L --silent -o "$DOWNLOAD_PATH/$DOWNLOAD_FILE" "$1"
 		fi

 		EXITCODE=$?
 		if [ $EXITCODE -ne 0 ]; then
 			echo ""
 			echo "Failed to download $1. Exitcode $EXITCODE";
 			exit 1
 		fi

 		echo "... Done"
 	else
 		echo "$DOWNLOAD_FILE has already downloaded."
 	fi

 	make_dir "$DOWNLOAD_PATH/$TARGETDIR"

 	if [ -n "$3" ]; then
 		if ! tar -xvf "$DOWNLOAD_PATH/$DOWNLOAD_FILE" -C "$DOWNLOAD_PATH/$TARGETDIR" 2>/dev/null >/dev/null; then
 			echo "Failed to extract $DOWNLOAD_FILE";
 			exit 1
 		fi
 	else
 		if ! tar -xvf "$DOWNLOAD_PATH/$DOWNLOAD_FILE" -C "$DOWNLOAD_PATH/$TARGETDIR" --strip-components 1 2>/dev/null >/dev/null; then
 			echo "Failed to extract $DOWNLOAD_FILE";
 			exit 1
 		fi
 	fi

 	echo "Extracted $DOWNLOAD_FILE";

 	cd "$DOWNLOAD_PATH/$TARGETDIR" || (echo "Error has occurred." ; exit 1)
 }

 execute () {
 	echo "$ $*"

 	OUTPUT=$("$@" 2>&1)

 	# shellcheck disable=SC2181
 	if [ $? -ne 0 ]; then
 		echo "$OUTPUT"
 		echo ""
 		echo "Failed to Execute $*" >&2
 		exit 1
 	fi
 }

 build () {
 	echo ""
 	echo "building $1"
 	echo "======================="

 	if [ -f "$PACKAGES/$1.done" ]; then
 		echo "$1 already built. Remove $PACKAGES/$1.done lockfile to rebuild it."
 		return 1
 	fi

 	return 0
 }

 command_exists () {
 	if ! [[ -x $(command -v "$1") ]]; then
 		return 1
 	fi

 	return 0
 }

 library_exists () {
 	local result=0
 	local output=$(pkg-config --exists --print-errors "$1" 2>&1 > /dev/null) || result=$?
 	if [ ! "$result" = "0" ]; then
 		return 1
 	fi

 	return 0
 }

 build_done () {
 	touch "$PACKAGES/$1.done"
 }

 cleanup () {
 	remove_dir "$PACKAGES"
 	remove_dir "$WORKSPACE"
 	echo "Cleanup done."
 	echo ""
 }

 usage () {
 	echo "Usage: $PROGNAME [OPTIONS]"
 	echo "Options:"
 	echo "  -h, --help          Display usage information"
 	echo "      --version       Display version information"
 	echo "  -b, --build         Starts the build process"
 	echo "  -c, --cleanup       Remove all working dirs"
 	echo "  -f, --full-static   Build a full static FFmpeg binary (eg. glibc, pthreads etc...) **only Linux**"
 	echo "                      Note: Because of the NSS (Name Service Switch), glibc does not recommend static links."
 	echo ""
 }

 while (( $# > 0 )); do
 	case $1 in
 		-h | --help)
 			usage
 			exit 0
 			;;
 		--version)
 			echo "$VERSION"
 			exit 0
 			;;
 		-*)
 			if [[ "$1" == "--build" || "$1" =~ 'b' ]]; then
 				bflag='-b'
 			fi
 			if [[ "$1" == "--cleanup" || "$1" =~ 'c'  && ! "$1" =~ '--' ]]; then
 				cflag='-c'
 				cleanup
 			fi
 			if [[ "$1" == "--full-static" || "$1" =~ 'f' ]]; then
 				if [[ "$OSTYPE" == "darwin"* ]]; then
 					echo "Error: A full static binary can only be build on Linux."
 					exit 1
 				fi
 				LDEXEFLAGS="-static"
 			fi
 			shift
 			;;
 		*)
 			usage
 			exit 1
 			;;
 	esac
 done

 echo "ffmpeg-build-script v$VERSION"
 echo "========================="
 echo ""

 if [ -z "$bflag" ]; then
 	if [ -z "$cflag" ]; then
 		usage
 		exit 1
 	fi
 	exit 0
 fi

 echo "Using $MJOBS make jobs simultaneously."

 if [ -n "$LDEXEFLAGS" ]; then
 	echo "Start the build in full static mode."
 fi

 mkdir -p "$PACKAGES"
 mkdir -p "$WORKSPACE"

 export PATH="${WORKSPACE}/bin:$PATH"
 PKG_CONFIG_PATH="/usr/local/lib/x86_64-linux-gnu/pkgconfig:/usr/local/lib/pkgconfig"
 PKG_CONFIG_PATH+=":/usr/local/share/pkgconfig:/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig:/usr/lib64/pkgconfig"
 export PKG_CONFIG_PATH

 if ! command_exists "make"; then
 	echo "make not installed.";
 	exit 1
 fi

 if ! command_exists "g++"; then
 	echo "g++ not installed.";
 	exit 1
 fi

 if ! command_exists "curl"; then
 	echo "curl not installed.";
 	exit 1
 fi

 if ! command_exists "python"; then
 	echo "Python command not found. Lv2 filter will not be available.";
 fi


 ##
 ## build tools
 ##

 if build "pkg-config"; then
 	download "https://pkgconfig.freedesktop.org/releases/pkg-config-0.29.2.tar.gz"
 	execute ./configure --silent --prefix="${WORKSPACE}" --with-pc-path="${WORKSPACE}"/lib/pkgconfig --with-internal-glib
 	execute make -j$MJOBS
 	execute make install
 	build_done "pkg-config"
 fi


 if command_exists "python"; then

  if build "lv2"; then
    download "https://lv2plug.in/spec/lv2-1.18.0.tar.bz2" "lv2-1.18.0.tar.bz2"
    execute ./waf configure --prefix="${WORKSPACE}" --lv2-user
    execute ./waf
    execute ./waf install

    build_done "lv2"
  fi

  if build "waflib"; then
    download "https://gitlab.com/drobilla/autowaf/-/archive/cc37724b9bfa889baebd8cb10f38b8c7cab83e37/autowaf-cc37724b9bfa889baebd8cb10f38b8c7cab83e37.tar.gz" "autowaf.tar.gz"
    build_done "waflib"
  fi

  if build "serd"; then
    download "https://gitlab.com/drobilla/serd/-/archive/v0.30.6/serd-v0.30.6.tar.gz" "serd-v0.30.6.tar.gz"
    execute cp -r ${PACKAGES}/autowaf/* "${PACKAGES}/serd-v0.30.6/waflib/"
    execute ./waf configure --prefix="${WORKSPACE}" --static --no-shared --no-posix
    execute ./waf
    execute ./waf install
    build_done "serd"
  fi

  if build "pcre"; then
    download "https://ftp.pcre.org/pub/pcre/pcre-8.44.tar.gz" "pcre-8.44.tar.gz"
    execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
    execute make -j$MJOBS
    execute make install

    build_done "pcre"
  fi

  if build "sord"; then
    download "https://gitlab.com/drobilla/sord/-/archive/v0.16.6/sord-v0.16.6.tar.gz" "sord-v0.16.6.tar.gz"
    execute cp -r ${PACKAGES}/autowaf/* "${PACKAGES}/sord-v0.16.6/waflib/"
    execute ./waf configure --prefix="${WORKSPACE}" CFLAGS=${CFLAGS} --static --no-shared --no-utils
    execute ./waf CFLAGS=${CFLAGS}
    execute ./waf install

    build_done "sord"
  fi

  if build "sratom"; then
    download "https://gitlab.com/lv2/sratom/-/archive/v0.6.6/sratom-v0.6.6.tar.gz" "sratom-v0.6.6.tar.gz"
    execute cp -r ${PACKAGES}/autowaf/* "${PACKAGES}/sratom-v0.6.6/waflib/"
    execute ./waf configure --prefix="${WORKSPACE}" --static --no-shared
    execute ./waf
    execute ./waf install

    build_done "sratom"
  fi

  if build "lilv"; then
    download "https://gitlab.com/lv2/lilv/-/archive/v0.24.10/lilv-v0.24.10.tar.gz" "lilv-v0.24.10.tar.gz"
    execute cp -r ${PACKAGES}/autowaf/* "${PACKAGES}/lilv-v0.24.10/waflib/"
    execute ./waf configure --prefix="${WORKSPACE}" --static --no-shared --no-utils
    execute ./waf
    execute ./waf install
 		CFLAGS+=" -I$WORKSPACE/include/lilv-0"
    build_done "lilv"
  fi

  CONFIGURE_OPTIONS+=("--enable-lv2")
 fi

 if build "yasm"; then
 	download "https://github.com/yasm/yasm/releases/download/v1.3.0/yasm-1.3.0.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}"
 	execute make -j$MJOBS
 	execute make install
 	build_done "yasm"
 fi

 if build "nasm"; then
 	download "https://www.nasm.us/pub/nasm/releasebuilds/2.15.05/nasm-2.15.05.tar.xz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install
 	build_done "nasm"
 fi

 if build "frei0r"; then
 	download "https://files.dyne.org/frei0r/releases/frei0r-plugins-1.7.0.tar.gz"
 	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DENABLE_SHARED=off -DBUILD_SHARED_LIBS=OFF
 	execute make -j$MJOBS
 	execute make install
 	build_done "frei0r"
 fi

 if build "zlib"; then
 	download "https://www.zlib.net/zlib-1.2.11.tar.gz"
 	execute ./configure --static --prefix="${WORKSPACE}"
 	execute make -j$MJOBS
 	execute make install
 	build_done "zlib"
 fi

 if build "freetype"; then
 	download "https://download.savannah.gnu.org/releases/freetype/freetype-2.10.1.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --enable-static --disable-shared --with-zlib=yes
 	# \ --with-png=yes --with-zlib=yes --with-pic
 	execute make -j$MJOBS
 	execute make install
 	execute make clean
 	build_done "freetype"
 fi

 if build "fribidi"; then
 	download "https://github.com/fribidi/fribidi/releases/download/v1.0.10/fribidi-1.0.10.tar.xz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static --disable-docs
 	execute make -j$MJOBS
 	execute make install
 	build_done "fribidi"
 fi

 if build "expat"; then
 	download "https://github.com/libexpat/libexpat/releases/download/R_2_2_9/expat-2.2.9.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install
 	build_done "expat"
 fi

 if build "openssl"; then
 	download "https://www.openssl.org/source/openssl-1.1.1h.tar.gz"
 	execute ./config --prefix="${WORKSPACE}" --openssldir="${WORKSPACE}" --with-zlib-include="${WORKSPACE}"/include/ --with-zlib-lib="${WORKSPACE}"/lib no-shared zlib
 	execute make -j$MJOBS
 	execute make install_sw

 	build_done "openssl"
 fi
 CONFIGURE_OPTIONS+=("--enable-openssl")

 if build "cmake"; then
 	download "https://cmake.org/files/v3.18/cmake-3.18.4.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --system-zlib
 	execute make -j$MJOBS
 	execute make install
 	build_done "cmake"
 fi

 if build "fontconfig"; then
 	download "https://www.freedesktop.org/software/fontconfig/release/fontconfig-2.13.92.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static --disable-docs
 	execute make -j$MJOBS
 	execute make install
 	build_done "fontconfig"
 fi

 if build "libass"; then
 	download "https://github.com/libass/libass/releases/download/0.14.0/libass-0.14.0.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make check
 	execute make install
 	build_done "libass"
 fi

 if build "openjpeg"; then
 	download "https://github.com/uclouvain/openjpeg/archive/v2.4.0/openjpeg-2.4.0.tar.gz"
 	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DENABLE_SHARED=off -DBUILD_SHARED_LIBS=OFF
 	execute make -j$MJOBS
 	execute make install
 	build_done "openjpeg"
 fi


 ##
 ## video library
 ##

 if build "x264"; then
 	download "https://code.videolan.org/videolan/x264/-/archive/stable/x264-stable.tar.bz2"

 	if [[ "$OSTYPE" == "linux-gnu" ]]; then
 		execute ./configure --prefix="${WORKSPACE}" --enable-static --enable-pic CXXFLAGS="-fPIC"
 	else
 		execute ./configure --prefix="${WORKSPACE}" --enable-static --enable-pic
 	fi

 	execute make -j$MJOBS
 	execute make install
 	execute make install-lib-static

 	build_done "x264"
 fi
 CONFIGURE_OPTIONS+=("--enable-libx264")

 if build "x265"; then
 	download "https://github.com/videolan/x265/archive/Release_3.5.tar.gz" "x265-3.5.tar.gz"
 	cd build/linux || exit
 	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DENABLE_SHARED=off -DBUILD_SHARED_LIBS=OFF ../../source
 	execute make -j$MJOBS
 	execute make install

 	if [ -n "$LDEXEFLAGS" ]; then
 		sed -i.backup 's/-lgcc_s/-lgcc_eh/g' "${WORKSPACE}/lib/pkgconfig/x265.pc" # The -i.backup is intended and required on MacOS: https://stackoverflow.com/questions/5694228/sed-in-place-flag-that-works-both-on-mac-bsd-and-linux
 	fi

 	build_done "x265"
 fi
 CONFIGURE_OPTIONS+=("--enable-libx265")

 if build "libvpx"; then
 	download "https://github.com/webmproject/libvpx/archive/v1.9.0.tar.gz" "libvpx-1.9.0.tar.gz"

 	if [[ "$OSTYPE" == "darwin"* ]]; then
 		echo "Applying Darwin patch"
 		sed "s/,--version-script//g" build/make/Makefile > build/make/Makefile.patched
 		sed "s/-Wl,--no-undefined -Wl,-soname/-Wl,-undefined,error -Wl,-install_name/g" build/make/Makefile.patched > build/make/Makefile
 	fi

 	execute ./configure --prefix="${WORKSPACE}" --disable-unit-tests --disable-shared --as=yasm
 	execute make -j$MJOBS
 	execute make install

 	build_done "libvpx"
 fi
 CONFIGURE_OPTIONS+=("--enable-libvpx")

 if build "xvidcore"; then
 	download "https://downloads.xvid.com/downloads/xvidcore-1.3.7.tar.gz"
 	cd build/generic || exit
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	if [[ -f ${WORKSPACE}/lib/libxvidcore.4.dylib ]]; then
 		execute rm "${WORKSPACE}/lib/libxvidcore.4.dylib"
 	fi

 	if [[ -f ${WORKSPACE}/lib/libxvidcore.so ]]; then
 		execute rm "${WORKSPACE}"/lib/libxvidcore.so*
 	fi

 	build_done "xvidcore"
 fi
 CONFIGURE_OPTIONS+=("--enable-libxvid")

 if build "vid_stab"; then
 	download "https://github.com/georgmartius/vid.stab/archive/v1.1.0.tar.gz" "vid.stab-1.1.0.tar.gz"
 	execute cmake -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DUSE_OMP=OFF -DENABLE_SHARED=off .
 	execute make
 	execute make install

 	build_done "vid_stab"
 fi
 CONFIGURE_OPTIONS+=("--enable-libvidstab")

 if build "av1"; then
 	download "https://aomedia.googlesource.com/aom/+archive/b52ee6d44adaef8a08f6984390de050d64df9faa.tar.gz" "av1.tar.gz" "av1"
 	make_dir "$PACKAGES"/aom_build
 	cd "$PACKAGES"/aom_build || exit
 	execute cmake -DENABLE_TESTS=0 -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DCMAKE_INSTALL_LIBDIR=lib "$PACKAGES"/av1
 	execute make -j$MJOBS
 	execute make install

 	build_done "av1"
 fi
 CONFIGURE_OPTIONS+=("--enable-libaom")

 ##
 ## audio library
 ##

 if build "opencore"; then
 	download "https://deac-riga.dl.sourceforge.net/project/opencore-amr/opencore-amr/opencore-amr-0.1.5.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	build_done "opencore"
 fi
 CONFIGURE_OPTIONS+=("--enable-libopencore_amrnb" "--enable-libopencore_amrwb")

 if build "lame"; then
 	download "https://netcologne.dl.sourceforge.net/project/lame/lame/3.100/lame-3.100.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	build_done "lame"
 fi
 CONFIGURE_OPTIONS+=("--enable-libmp3lame")

 if build "opus"; then
 	download "https://archive.mozilla.org/pub/opus/opus-1.3.1.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	build_done "opus"
 fi
 CONFIGURE_OPTIONS+=("--enable-libopus")

 if build "libogg"; then
 	download "https://ftp.osuosl.org/pub/xiph/releases/ogg/libogg-1.3.3.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install
 	build_done "libogg"
 fi

 if build "libvorbis"; then
 	download "https://ftp.osuosl.org/pub/xiph/releases/vorbis/libvorbis-1.3.6.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --with-ogg-libraries="${WORKSPACE}"/lib --with-ogg-includes="${WORKSPACE}"/include/ --enable-static --disable-shared --disable-oggtest
 	execute make -j$MJOBS
 	execute make install

 	build_done "libvorbis"
 fi
 CONFIGURE_OPTIONS+=("--enable-libvorbis")

 if build "libtheora"; then
 	download "https://ftp.osuosl.org/pub/xiph/releases/theora/libtheora-1.1.1.tar.gz"
 	sed "s/-fforce-addr//g" configure > configure.patched
 	chmod +x configure.patched
 	mv configure.patched configure
 	execute ./configure --prefix="${WORKSPACE}" --with-ogg-libraries="${WORKSPACE}"/lib --with-ogg-includes="${WORKSPACE}"/include/ --with-vorbis-libraries="${WORKSPACE}"/lib --with-vorbis-includes="${WORKSPACE}"/include/ --enable-static --disable-shared --disable-oggtest --disable-vorbistest --disable-examples --disable-asm --disable-spec
 	execute make -j$MJOBS
 	execute make install

 	build_done "libtheora"
 fi
 CONFIGURE_OPTIONS+=("--enable-libtheora")

 if build "fdk_aac"; then
 	download "https://sourceforge.net/projects/opencore-amr/files/fdk-aac/fdk-aac-2.0.1.tar.gz/download?use_mirror=gigenet" "fdk-aac-2.0.1.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	build_done "fdk_aac"
 fi
 CONFIGURE_OPTIONS+=("--enable-libfdk-aac")


 ##
 ## image library
 ##

 if build "libwebp"; then
 	download "https://github.com/webmproject/libwebp/archive/v1.1.0.tar.gz" "libwebp-1.1.0.tar.gz"
 	make_dir build
 	cd build || exit
 	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_BINDIR=bin -DCMAKE_INSTALL_INCLUDEDIR=include -DENABLE_SHARED=OFF -DENABLE_STATIC=ON ../
 	execute make -j$MJOBS
 	execute make install

 	build_done "libwebp"
 fi
 CONFIGURE_OPTIONS+=("--enable-libwebp")


 ##
 ## other library
 ##

 if build "libsdl"; then
 	download "https://www.libsdl.org/release/SDL2-2.0.12.tar.gz"
 	execute ./configure --prefix="${WORKSPACE}" --disable-shared --enable-static
 	execute make -j$MJOBS
 	execute make install

 	build_done "libsdl"
 fi

 if build "srt"; then
 	download "https://github.com/Haivision/srt/archive/v1.4.1.tar.gz" "srt-1.4.1.tar.gz"
 	export OPENSSL_ROOT_DIR="${WORKSPACE}"
 	export OPENSSL_LIB_DIR="${WORKSPACE}"/lib
 	export OPENSSL_INCLUDE_DIR="${WORKSPACE}"/include/
 	execute cmake . -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_BINDIR=bin -DCMAKE_INSTALL_INCLUDEDIR=include -DENABLE_SHARED=OFF -DENABLE_STATIC=ON -DENABLE_APPS=OFF -DUSE_STATIC_LIBSTDCXX=ON
 	execute make install

 	if [ -n "$LDEXEFLAGS" ]; then
 		sed -i.backup 's/-lgcc_s/-lgcc_eh/g' "${WORKSPACE}"/lib/pkgconfig/srt.pc # The -i.backup is intended and required on MacOS: https://stackoverflow.com/questions/5694228/sed-in-place-flag-that-works-both-on-mac-bsd-and-linux
 	fi

 	build_done "srt"
 fi
 CONFIGURE_OPTIONS+=("--enable-libsrt")


 ##
 ## HWaccel library
 ##

 if [[ "$OSTYPE" == "linux-gnu" ]]; then
 	if command_exists "nvcc" ; then
 		if build "nv-codec"; then
 			download "https://github.com/FFmpeg/nv-codec-headers/releases/download/n11.0.10.0/nv-codec-headers-11.0.10.0.tar.gz"
 			execute make PREFIX="${WORKSPACE}"
 			execute make install PREFIX="${WORKSPACE}"
 			build_done "nv-codec"
 		fi
 		CFLAGS+=" -I/usr/local/cuda/include"
 		LDFLAGS+=" -L/usr/local/cuda/lib64"
 		CONFIGURE_OPTIONS+=("--enable-cuda-nvcc" "--enable-cuvid" "--enable-nvenc" "--enable-cuda-llvm")

 		if [ -z "$LDEXEFLAGS" ]; then
 			CONFIGURE_OPTIONS+=("--enable-libnpp") # Only libnpp cannot be statically linked.
 		fi

 		# https://arnon.dk/matching-sm-architectures-arch-and-gencode-for-various-nvidia-cards/
 		CONFIGURE_OPTIONS+=("--nvccflags=-gencode arch=compute_52,code=sm_52")
 	fi

 	# Vaapi doesn't work well with static links FFmpeg.
 	if [ -z "$LDEXEFLAGS" ]; then
 		# If the libva development SDK is installed, enable vaapi.
 		if library_exists "libva" ; then
 			if build "vaapi"; then
 				build_done "vaapi"
 			fi
 			CONFIGURE_OPTIONS+=("--enable-vaapi")
 		fi
 	fi
 fi


 ##
 ## FFmpeg
 ##

 build "ffmpeg"
 download "https://ffmpeg.org/releases/ffmpeg-4.3.1.tar.bz2"
 # shellcheck disable=SC2086
 ./configure "${CONFIGURE_OPTIONS[@]}" \
 	--disable-debug \
 	--disable-doc \
 	--disable-shared \
 	--enable-gpl \
 	--enable-nonfree \
 	--enable-pthreads \
 	--enable-static \
 	--enable-small \
 	--enable-pic \
 	--enable-ffplay \
 	--enable-fontconfig \
 	--enable-frei0r \
 	--enable-gpl \
 	--enable-version3 \
 	--enable-libass \
 	--enable-libfribidi \
 	--enable-libfdk-aac \
 	--enable-libfreetype \
 	--enable-libmp3lame \
 	--enable-libopencore-amrnb \
 	--enable-libopencore-amrwb \
 	--enable-libopenjpeg \
 	--enable-libopus \
 	--enable-librtmp \
 	--enable-libsoxr \
 	--enable-libspeex \
 	--enable-libtheora \
 	--enable-libvidstab \
 	--enable-libvo-amrwbenc \
 	--enable-libvorbis \
 	--enable-libvpx \
 	--enable-libwebp \
 	--enable-libx264 \
 	--enable-libx265 \
 	--enable-libxvid \
 	--enable-libzimg \
 	--enable-nonfree \
 	--enable-openssl \
 	--enable-pthreads \
 	--enable-runtime-cpudetect \
 	--enable-avfilter \
 	--enable-libopencore_amrwb \
 	--enable-libopencore_amrnb \
 	--enable-filters \
 	--enable-libaom \
 	--enable-libopenh264 \
 	--enable-sdl2 \
 	--extra-cflags="${CFLAGS}" \
 	--extra-ldexeflags="${LDEXEFLAGS}" \
 	--extra-ldflags="${LDFLAGS}" \
 	--extra-libs="${EXTRALIBS}" \
 	--pkgconfigdir="$WORKSPACE/lib/pkgconfig" \
 	--pkg-config-flags="--static" \
 	--prefix="${WORKSPACE}"

 execute make -j$MJOBS
 execute make install

 INSTALL_FOLDER="/usr/bin"
 if [[ "$OSTYPE" == "darwin"* ]]; then
 INSTALL_FOLDER="/usr/local/bin"
 fi

 echo ""
 echo "Building done. The following binaries can be found here:"
 echo "- ffmpeg: $WORKSPACE/bin/ffmpeg"
 echo "- ffprobe: $WORKSPACE/bin/ffprobe"
 echo "- ffplay: $WORKSPACE/bin/ffplay"

 echo ""

 if [[ "$AUTOINSTALL" == "yes" ]]; then
 	if command_exists "sudo"; then
 		sudo cp "$WORKSPACE/bin/ffmpeg" "$INSTALL_FOLDER/ffmpeg"
 		sudo cp "$WORKSPACE/bin/ffprobe" "$INSTALL_FOLDER/ffprobe"
    sudo cp "$WORKSPACE/bin/ffplay" "$INSTALL_FOLDER/ffplay"
 		echo "Done. FFmpeg is now installed to your system."
 	else
 		cp "$WORKSPACE/bin/ffmpeg" "$INSTALL_FOLDER/ffmpeg"
 		cp "$WORKSPACE/bin/ffprobe" "$INSTALL_FOLDER/ffprobe"
    sudo cp "$WORKSPACE/bin/ffplay" "$INSTALL_FOLDER/ffplay"
 		echo "Done. FFmpeg is now installed to your system."
 	fi
 elif [[ ! "$SKIPINSTALL" == "yes" ]]; then
 	read -r -p "Install these binaries to your $INSTALL_FOLDER folder? Existing binaries will be replaced. [Y/n] " response
 	case $response in
 	[yY][eE][sS]|[yY])
 		if command_exists "sudo"; then
 			sudo cp "$WORKSPACE/bin/ffmpeg" "$INSTALL_FOLDER/ffmpeg"
 			sudo cp "$WORKSPACE/bin/ffprobe" "$INSTALL_FOLDER/ffprobe"
      sudo cp "$WORKSPACE/bin/ffplay" "$INSTALL_FOLDER/ffplay"
 		else
 			cp "$WORKSPACE/bin/ffmpeg" "$INSTALL_FOLDER/ffmpeg"
 			cp "$WORKSPACE/bin/ffprobe" "$INSTALL_FOLDER/ffprobe"
      cp "$WORKSPACE/bin/ffplay" "$INSTALL_FOLDER/ffplay"
 		fi
 		echo "Done. FFmpeg is now installed to your system."
 		;;
 	esac
 fi

 exit 0
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