音视频编程: 编译 faac/faad2

chmod +x build_faac.sh

#!/bin/sh  
  
# http://www.linuxfromscratch.org/blfs/view/svn/multimedia/faac.html  
# ftp://mirror.ovh.net/gentoo-distfiles/distfiles/  
  
major=1  
minor=28  
micro=  

XCD_ROOT="/Applications/Xcode.app/Contents/Developer"  
TOL_ROOT="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain"  
#修改为最新的 sdk 版本
SDK_ROOT="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk"  
SDK_SML_ROOT="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.2.sdk"  

export PATH=$TOL_ROOT/usr/bin:$PATH  
  
work=`pwd`  
srcs=$work/src  
buid=$work/build  
insl=$buid/install  
name=faac-${major}.${minor}  
pakt=${name}.tar.gz  
dest=$work/faac-iOS-${major}.${minor}.${micro}.tgz  
  
rm -rf $srcs $buid $dest && mkdir -p $srcs $buid  

 
archs="i386 x86_64 armv7 armv7s arm64"  
  
for a in $archs; do  
  case $a in  
    arm*)  
      sys_root=${SDK_ROOT}  
      host=arm-apple-darwin
      ;;  
    i386|x86_64)  
      sys_root=${SDK_SML_ROOT}  
      host=$a-apple-darwin
      ;;  
  esac  
  prefix=$insl/$a && rm -rf $prefix && mkdir -p $prefix  
  rm -rf $srcs && mkdir -p $srcs && cd $work && tar xvzf $pakt -C $srcs && cd $srcs/$name  

  
  export CC="$TOL_ROOT/usr/bin/clang -arch $a -isysroot $sys_root"
  export CXX="$TOL_ROOT/usr/bin/clang++ -arch $a -isysroot $sys_root"
  export CXXFLAGS="-arch $a -isysroot $sys_root"
  export CFLAGS="-arch $a -isysroot $sys_root"
  export LDFLAGS="-isysroot $sys_root"
  export LIBS="-L${sys_root}/usr/lib"

  chmod +x bootstrap  
  ./bootstrap \
    &&./configure \
    --host=$host \
    --with-sysroot=$sys_root \
    --prefix=$prefix \
    --disable-shared \
    --enable-static \
    --disable-faac \
    --with-mp4v2 \
    &&make && make install
  lipo_archs="$lipo_archs $prefix/lib/libfaac.a"

  echo 'continue any key pressed..'
  read -n 1
done
  
univ=$insl/universal && mkdir -p $univ/lib  
cp -r $prefix/include $univ/  
lipo $lipo_archs -create -output $univ/lib/libfaac.a  
ranlib $univ/lib/libfaac.a  
strip -S $univ/lib/libfaac.a  
  
cd $univ && tar cvzf $dest *

touch build_fadd2.sh

#!/bin/sh

CONFIGURE_FLAGS="--enable-static --with-pic"

ARCHS="arm64 armv7s armv7 x86_64 i386"

# directories
SOURCE="faad"
FAT="fat-faad"

SCRATCH="scratch-faad"
# must be an absolute path
THIN=`pwd`/"thin-faad"

COMPILE="y"
LIPO="y"

if [ "$*" ]
then
if [ "$*" = "lipo" ]
then
# skip compile
COMPILE=
else
ARCHS="$*"
if [ $# -eq 1 ]
then
# skip lipo
LIPO=
fi
fi
fi

if [ "$COMPILE" ]
then
CWD=`pwd`
for ARCH in $ARCHS
do
echo "building $ARCH..."
mkdir -p "$SCRATCH/$ARCH"
cd "$SCRATCH/$ARCH"

if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]
then
PLATFORM="iPhoneSimulator"
CPU=
if [ "$ARCH" = "x86_64" ]
then
SIMULATOR="-mios-simulator-version-min=7.0"
HOST="--host=x86_64-apple-darwin"
else
SIMULATOR="-mios-simulator-version-min=5.0"
HOST="--host=i386-apple-darwin"
fi
else
PLATFORM="iPhoneOS"
if [ $ARCH = "armv7s" ]
then
CPU="--cpu=swift"
else
CPU=
fi
SIMULATOR=
HOST="--host=arm-apple-darwin"
fi

XCRUN_SDK=`echo $PLATFORM | tr '[:upper:]' '[:lower:]'`
CC="xcrun -sdk $XCRUN_SDK clang -Wno-error=unused-command-line-argument-hard-error-in-future"
AS="$CWD/$SOURCE/extras/gas-preprocessor.pl $CC"
CFLAGS="-arch $ARCH $SIMULATOR"
CXXFLAGS="$CFLAGS"
LDFLAGS="$CFLAGS"

CC=$CC CFLAGS=$CXXFLAGS LDFLAGS=$LDFLAGS CPPFLAGS=$CXXFLAGS CXX=$CC CXXFLAGS=$CXXFLAGS  $CWD/$SOURCE/configure \
$CONFIGURE_FLAGS \
$HOST \
--prefix="$THIN/$ARCH" \
--disable-shared \
--without-mp4v2

make clean && make && make install-strip
cd $CWD
done
fi

if [ "$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
lipo -create `find $THIN -name $LIB` -output $FAT/lib/$LIB
done

cd $CWD
cp -rf $THIN/$1/include $FAT
fi

chmod +x build_fadd2.sh

lipo -info libfaad.a

Architectures in the fat file: libfaad.a are: i386 armv7 armv7s arm64