注意：這里由于本人對mac 腳本命令不熟（先簡單看了半天linux shell命令行州叠，推薦大家看這本書， Linux 運維之道，半天就上手了）拜英，本篇只是自己操作的，僅僅是個走下流程的Demo說明读串。接著上篇筆記聊记，來實現(xiàn)android 多平臺編譯（armeabi arm64-v8a armv7a x86 x86-64） 。

第一個腳本主要是用來具體編譯某一個平臺的恢暖， 先上腳本排监，我在說明！杰捂！

set -e
echo --------
echo ANDROID_NDK path is ok !
ANDROID_NDK=/Users/cievon/Documents/AndroidSDK/android-ndk-r10e
echo --------
echo ROOT_PREFIX Include and lib output paths ! You can set up your own path here
ROOT_PREFIX=$(pwd)/../build/x264
ROOT=$(pwd)
echo --------
echo 1.Check the NDK path
mkdir $ROOT_PREFIX
if [ -z "$ANDROID_NDK" ]; then
    echo "You must define ANDROID_NDK before starting."
    echo "They must point to your NDK directories.\n"
    exit 1
fi
#--------------------
echo --------
echo 2.Check and compile platform for android
FF_ARCH=$1
if [ -z "$FF_ARCH" ]; then
    echo "You must specific an architecture 'arm, armv7a, x86, ...'.\n"
    exit 1
fi
echo --------
echo 3.configure params for different platforms
FF_ANDROID_PLATFORM=android-9
#----- armv7a begin -----
if [ "$FF_ARCH" = "armv7a" ]; then
    PREBUILT=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.9/prebuilt
    export PATH=$PATH:$PREBUILT/darwin-x86_64/bin/
    PLATFORM=$ANDROID_NDK/platforms/$FF_ANDROID_PLATFORM/arch-arm
    CROSS_PREFIX=$PREBUILT/darwin-x86_64/bin/arm-linux-androideabi-
    HOST=arm-linux
    PREFIX=$ROOT_PREFIX/$FF_ARCH/
    FF_CFG_CONF="$FF_CFG_CONF --disable-asm"
elif [ "$FF_ARCH" = "armv5" ]; then
    PREBUILT=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.9/prebuilt
    export PATH=$PATH:$PREBUILT/darwin-x86_64/bin/
    PLATFORM=$ANDROID_NDK/platforms/$FF_ANDROID_PLATFORM/arch-arm
    CROSS_PREFIX=$PREBUILT/darwin-x86_64/bin/arm-linux-androideabi-
    HOST=arm-linux
    PREFIX=$ROOT_PREFIX/$FF_ARCH/
    FF_CFG_CONF="$FF_CFG_CONF --disable-asm"
elif [ "$FF_ARCH" = "arm64" ]; then
    FF_ANDROID_PLATFORM=android-21
    PREBUILT=$ANDROID_NDK/toolchains/aarch64-linux-android-4.9/prebuilt
    export PATH=$PATH:$PREBUILT/darwin-x86_64/bin/
    PLATFORM=$ANDROID_NDK/platforms/$FF_ANDROID_PLATFORM/arch-arm64
    CROSS_PREFIX=$PREBUILT/darwin-x86_64/bin/aarch64-linux-android-
    HOST=aarch64-linux
    PREFIX=$ROOT_PREFIX/$FF_ARCH/
    FF_CFG_CONF="$FF_CFG_CONF --enable-asm"
elif [ "$FF_ARCH" = "x86" ]; then
    PREBUILT=$ANDROID_NDK/toolchains/x86-4.9/prebuilt
    export PATH=$PATH:$PREBUILT/darwin-x86_64/bin/
    PLATFORM=$ANDROID_NDK/platforms/$FF_ANDROID_PLATFORM/arch-x86
    CROSS_PREFIX=$PREBUILT/darwin-x86_64/bin/i686-linux-android-
    HOST=i686-linux
    PREFIX=$ROOT_PREFIX/$FF_ARCH/
    FF_CFG_CONF="$FF_CFG_CONF --disable-asm"
elif [ "$FF_ARCH" = "x86_64" ]; then
    FF_ANDROID_PLATFORM=android-21
    PREBUILT=$ANDROID_NDK/toolchains/x86_64-4.9/prebuilt
    export PATH=$PATH:$PREBUILT/darwin-x86_64/bin/
    PLATFORM=$ANDROID_NDK/platforms/$FF_ANDROID_PLATFORM/arch-x86_64
    CROSS_PREFIX=$PREBUILT/darwin-x86_64/bin/x86_64-linux-android-
    HOST=x86_64-linux
    PREFIX=$ROOT_PREFIX/$FF_ARCH/
    FF_CFG_CONF="$FF_CFG_CONF --disable-asm"
else
echo --------
    echo "unknown architecture $FF_ARCH";
    exit 1
fi
echo --------
mkdir $PREFIX
echo Enter your x264 source directory ! You have to modify it into your own source path
cd $ROOT/../x264-$FF_ARCH
echo --------
echo Build the necessary and other attributes for configure
FF_CFG_CONF="$FF_CFG_CONF --prefix=$PREFIX"
# FF_CFG_CONF="$FF_CFG_CONF --enable-shared" 
FF_CFG_CONF="$FF_CFG_CONF --enable-static"
FF_CFG_CONF="$FF_CFG_CONF --disable-cli"
# FF_CFG_CONF="$FF_CFG_CONF --disable-opencl"
FF_CFG_CONF="$FF_CFG_CONF --disable-thread"
# FF_CFG_CONF="$FF_CFG_CONF --enable-pic"
# FF_CFG_CONF="$FF_CFG_CONF --enable-strip"
# FF_CFG_CONF="$FF_CFG_CONF --disable-avs"
# FF_CFG_CONF="$FF_CFG_CONF --disable-swscale"
# FF_CFG_CONF="$FF_CFG_CONF --disable-lavf"
# FF_CFG_CONF="$FF_CFG_CONF --disable-ffms"
FF_CFG_CONF="$FF_CFG_CONF --disable-gpac"
FF_CFG_CONF="$FF_CFG_CONF --disable-lsmash"
FF_CFG_CONF="$FF_CFG_CONF --host=$HOST"
FF_CFG_CONF="$FF_CFG_CONF --cross-prefix=$CROSS_PREFIX"
FF_CFG_CONF="$FF_CFG_CONF --sysroot=$PLATFORM"
echo --------
echo configure: $FF_CFG_CONF
echo
./configure $FF_CFG_CONF
echo --------
echo make
make
sudo make install
echo --------
echo finish ! ! !
echo --------

NDK編譯工具要配置3個路徑 ：android ndk 目錄舆床；ndk 下面的 platforms 和 toolchains ，剩下的就是android 支持的平臺參數(shù)配置不同了嫁佳，看下這兩個目錄 對比下一目了然,D:\android-sdk\ndk-bundle\platforms\android-21 和 D:\android-sdk\ndk-bundle\toolchains挨队。
x264源碼編譯的配置，流程如下蒿往，配置configure 參數(shù)盛垦，執(zhí)行 ./configure ....參數(shù)內(nèi)容 ，然后 make 瓤漏，再 make install 腾夯，就得到你要的 include 和lib 目錄了！Ｊ叱洹蝶俱！腳本里面的配置 有三個必要的配置，這里呢＜⒙Ｕゴ簟！我這里貼圖 庸队，到源碼目錄下积蜻，有個configure文件，這就是總開關了彻消，打開里面浅侨，如下圖：

image

是不是懵逼了！Ｖづ颉如输！ 我建議先按照我的配置來，先編出來！不见！ 有時間澳化，可以仔細看這個腳本配置。
首先NDK 交叉編譯 這單個是必須的：

FF_CFG_CONF="$FF_CFG_CONF --host=$HOST"
FF_CFG_CONF="$FF_CFG_CONF --cross-prefix=$CROSS_PREFIX"
FF_CFG_CONF="$FF_CFG_CONF --sysroot=$PLATFORM"稳吮！

然后是你要的格式要動態(tài)庫還是靜態(tài)庫 ：

# FF_CFG_CONF="$FF_CFG_CONF --enable-shared" // 編譯成動態(tài)庫 .so
FF_CFG_CONF="$FF_CFG_CONF --enable-static"http://編譯成靜態(tài)庫.a ６泄取！灶似！

注意的是：你可以在源碼目錄下面列林，打開shell 執(zhí)行 ./configure --help 上面有隊每個配置的說明，也不多好像就20多個＠也选希痴！

下面還有個腳本，主要為了方便 春感，先看腳本

UNI_BUILD_ROOT=`pwd`
FF_TARGET=$1
set -e
set +x
FF_ACT_ARCHS_32="armv5 armv7a x86"
FF_ACT_ARCHS_64="armv5 armv7a arm64 x86 x86_64"
FF_ACT_ARCHS_ALL=$FF_ACT_ARCHS_64
echo_archs() {
    echo "===================="
    echo "[*] check archs"
    echo "===================="
    echo "FF_ALL_ARCHS = $FF_ACT_ARCHS_ALL"
    echo "FF_ACT_ARCHS = $*"
    echo ""
}
echo_usage() {
    echo "Usage:"
    echo "  compile-x264.sh armv5|armv7a|arm64|x86|x86_64"
    echo "  compile-x264.sh all|all32"
    echo "  compile-x264.sh all64"
    echo "  compile-x264.sh clean"
    echo "  compile-x264.sh check"
    exit 1
}
echo_nextstep_help() {
    #----------
    echo ""
    echo "--------------------"
    echo "[*] Finished"
    echo "--------------------"
    echo "# to continue to build ffmpeg, run script below,"
    echo "sh compile-ffmpeg.sh "
    echo "# to continue to build ijkplayer, run script below,"
    echo "sh compile-ijk.sh "
}
#----------
case "$FF_TARGET" in
    "")
        echo_archs armv7a
        sh tools/do-compile-x264.sh armv7a
    ;;
    armv5|armv7a|arm64|x86|x86_64)
        echo_archs $FF_TARGET
        sh tools/do-compile-x264.sh $FF_TARGET
        echo_nextstep_help
    ;;
    all32)
        echo_archs $FF_ACT_ARCHS_32
        for ARCH in $FF_ACT_ARCHS_32
        do
            sh tools/do-compile-x264.sh $ARCH
        done
        echo_nextstep_help
    ;;
    all|all64)
        echo_archs $FF_ACT_ARCHS_64
        for ARCH in $FF_ACT_ARCHS_64
        do
            sh tools/do-compile-x264.sh $ARCH
        done
        echo_nextstep_help
    ;;
    clean)
        echo_archs FF_ACT_ARCHS_64
        for ARCH in $FF_ACT_ARCHS_ALL
        do
            if [ -d x264-$ARCH ]; then
                cd x264-$ARCH && cd -
            fi
        done
        rm -rf ./build/x264-*
    ;;
    check)
        echo_archs FF_ACT_ARCHS_ALL
    ;;
    *)
        echo_usage
        exit 1
    ;;
esac

這個腳本也是仿照ijkplayer 里面的腳本寫的砌创，很簡單 一句命令：

sh tools/do-compile-x264.sh armv7a

注意一點，就是這個腳本會調(diào)用第一個腳本路徑一定要配對ｖ昀痢Ｄ凼怠！還有一個腳本就更簡單了？摇甲献！

export ANDROID_NDK=/Users/cievon/Documents/AndroidSDK/android-ndk-r10e/
cd  contrib
FF_ARCH=$1
./compile-x264.sh $FF_ARCH

把這幾行生成一個腳本，里面會去調(diào)用上面第二個腳本颂翼，后面可以指定參數(shù)晃洒！如我的這個腳本名字 compile.sh
到這個目錄下面執(zhí)行 ：結果會編譯出所有五個平臺的 include 和 lib

 ./compile.sh  all   ```
 ./compile.sh  all32   或者  ./compile.sh  arm64 

很簡單！ ＞卫稹锥累！ 其實這三個腳本只是為了方便編譯多平臺的時候參數(shù)配置麻煩缘挑，如果大家一下子不明白集歇，可以參考我的上篇日記 http://www.reibang.com/p/67b733fcded0， 每一個平臺搞一套源碼目錄语淘，里面新建對應的平臺腳本诲宇，然后執(zhí)行： ./（你的腳本名稱），也能生成你的 頭文件惶翻，庫文件姑蓝，pc文件，都在源碼的當前目錄下吕粗，用的時候纺荧，你需要手動copy到你用的地方去！！宙暇！ 容易理解输枯，但是效率太低！Ｕ计丁Ｌ蚁ā！
歡迎FFmpeg大神 戳我liugstick@163.com!!!!!