X264是一个采用GPL授权的视频编码库，主要用于 H.264/MPEG-4 AVC 有损压缩视频的编码。git地址
使用脚本编译出用于iOS的静态库1
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129#!/bin/sh
CONFIGURE_FLAGS="--enable-static --enable-pic --disable-cli"
ARCHS="arm64 armv7s x86_64 i386 armv7"
# directories
SOURCE=""
FAT="x264-iOS"
SCRATCH="/Users/owenhong/x264"
# must be an absolute path
THIN=`pwd`/"thin-x264"
# the one included in x264 does not work; specify full path to working one
GAS_PREPROCESSOR=/usr/local/bin/gas-preprocessor.pl
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
if [ ! -r $GAS_PREPROCESSOR ]
then
echo 'gas-preprocessor.pl not found. Trying to install...'
(curl -L https://github.com/libav/gas-preprocessor/blob/master/gas-preprocessor.pl \
-o /usr/local/bin/gas-preprocessor.pl \
&& chmod +x /usr/local/bin/gas-preprocessor.pl) \
|| exit 1
fi
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=
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=
if [ $ARCH = "arm64" ]
then
HOST="--host=aarch64-apple-darwin"
else
HOST="--host=arm-apple-darwin"
fi
fi
XCRUN_SDK=`echo $PLATFORM | tr '[:upper:]' '[:lower:]'`
CC="xcrun -sdk $XCRUN_SDK clang -Wno-error=unused-command-line-argument-hard-error-in-future -arch $ARCH"
CFLAGS="-arch $ARCH $SIMULATOR"
CXXFLAGS="$CFLAGS"
LDFLAGS="$CFLAGS"
CC=$CC $CWD/$SOURCE/configure \
$CONFIGURE_FLAGS \
$HOST \
$CPU \
--extra-cflags="$CFLAGS" \
--extra-ldflags="$LDFLAGS" \
--prefix="$THIN/$ARCH"
mkdir extras
ln -s $GAS_PREPROCESSOR extras
make -j3 install
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
for ARCH in $ARCHS
do
cd $CWD
echo "copy $SCRATCH/$ARCH/config.h to $THIN/$ARCH/$include"
cp -rf $SCRATCH/$ARCH/config.h $THIN/$ARCH/$include || exit 1
done