#!/bin/sh# directoriesSOURCE="ffmpeg"FAT="FFmpeg-iOS"SCRATCH="scratch"# must be an absolute pathTHIN=`pwd`/"thin"# absolute path to x264 library#X264=`pwd`/fat-x264#FDK_AAC=`pwd`/../fdk-aac-build-script-for-iOS/fdk-aac-ios #--disable-yasmCONFIGURE_FLAGS="--enable-cross-compile --disable-debug --disable-programs \                 --disable-doc --enable-pic "if [ "$X264" ]then	CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-gpl --enable-libx264"fiif [ "$FDK_AAC" ]then	CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-libfdk-aac"fi# avresample#CONFIGURE_FLAGS="$CONFIGURE_FLAGS --enable-avresample"ARCHS="arm64 armv7 armv7s x86_64 i386"COMPILE="y"LIPO="y"DEPLOYMENT_TARGET="6.0"if [ "$*" ]then	if [ "$*" = "lipo" ]	then		# skip compile		COMPILE=	else		ARCHS="$*"		if [ $# -eq 1 ]		then			# skip lipo			LIPO=		fi	fifiif [ "$COMPILE" ]thenif [ ! `which yasm` ]then	echo 'Yasm not found'	if [ ! `which brew` ]	then		echo 'Homebrew not found. Trying to install...'                  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" \		|| exit 1	fi	echo 'Trying to install Yasm...'	brew install yasm || exit 1fi	if [ ! `which gas-preprocessor.pl` ]then	echo 'gas-preprocessor.pl not found. Trying to install...'	(curl -L https://github.com/libav/gas-preprocessor/raw/master/gas-preprocessor.pl \			-o /usr/local/bin/gas-preprocessor.pl \			&& chmod +x /usr/local/bin/gas-preprocessor.pl) \			|| exit 1fi	if [ ! -r $SOURCE ]	then		echo 'FFmpeg source not found. Trying to download...'		curl http://www.ffmpeg.org/releases/$SOURCE.tar.bz2 | tar xj \			|| exit 1	fi	CWD=`pwd`	for ARCH in $ARCHS	do		echo "building $ARCH..."		mkdir -p "$SCRATCH/$ARCH"		cd "$SCRATCH/$ARCH"		CFLAGS="-arch $ARCH"		if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]		then		    PLATFORM="iPhoneSimulator"		    CFLAGS="$CFLAGS -mios-simulator-version-min=$DEPLOYMENT_TARGET"		else		    PLATFORM="iPhoneOS"		    CFLAGS="$CFLAGS -mios-version-min=$DEPLOYMENT_TARGET -fembed-bitcode"		    if [ "$ARCH" = "arm64" ]		    then		        EXPORT="GASPP_FIX_XCODE5=1"		    fi		fi		XCRUN_SDK=`echo $PLATFORM | tr '[:upper:]' '[:lower:]'`		CC="xcrun -sdk $XCRUN_SDK clang"		CXXFLAGS="$CFLAGS"		LDFLAGS="$CFLAGS"		if [ "$X264" ]		then			CFLAGS="$CFLAGS -I$X264/include"			LDFLAGS="$LDFLAGS -L$X264/lib"		fi		if [ "$FDK_AAC" ]		then			CFLAGS="$CFLAGS -I$FDK_AAC/include"			LDFLAGS="$LDFLAGS -L$FDK_AAC/lib"		fi		TMPDIR=${TMPDIR/%\/} $CWD/$SOURCE/configure \		    --target-os=darwin \		    --arch=$ARCH \		    --cc="$CC" \		    $CONFIGURE_FLAGS \		    --extra-cflags="$CFLAGS" \		    --extra-ldflags="$LDFLAGS" \		    --prefix="$THIN/$ARCH" \--disable-ffmpeg \--disable-ffplay \--disable-ffprobe \--disable-ffserver \--disable-iconv \--disable-bzlib \--enable-avresample \--enable-avresample  \--enable-pic	\--disable-doc	\--disable-decoders \--enable-decoder=h264 \--disable-encoders \--disable-demuxers \--enable-demuxer=avi \--disable-muxers \--enable-muxer=avi \--disable-filters \		|| exit 1		make -j3 install $EXPORT || exit 1		cd $CWD	donefiif [ "$LIPO" ]then	echo "building fat binaries..."	mkdir -p $FAT/lib	set - $ARCHS	CWD=`pwd`	cd $THIN/$1/lib	for LIB in *.a	do		cd $CWD		echo lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB 1>&2		lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB || exit 1	done	cd $CWD	cp -rf $THIN/$1/include $FATfiecho Done