VLC for IOS 的编译（Xcode 4.6， IOS SDK 6.1 ， Mac OSX10.8）
vlc 是一款开源的，功能十分强大的视频播放器。手头上刚好接触ios视频播放器的相关开发，于是将其编译看看，倒也费了不少功夫。
编译vlc最大的问题是xcode版本变化过快，导致旧的脚本必须修改很多地方去适应新的版本，所以你可能参考某个方法去编译却老是出现问题，这里主要介绍如何灵活应变。
我主要参考了以下两篇博文：
http://www.cnblogs.com/madongchunqiu/archive/2012/06/07/Compile-MobileVLC-in-iOS5.html
http://blog.csdn.net/woohyuknrg/article/details/8424655
其中第二篇博文已经写的十分详细了，是我经历了重重困难，调试了很多次，最终才找到这篇博文并解决了问题，在此表示十分感谢。好，以下就是正文。
编译环境
我的编译环境是 Mac OS X 10.8， IOS SDK 6.1（Xcode 4.6），这两个环境是修改脚本的关键，可能你的环境与我不尽相同，所以在对应的地方要做符合自己的修改。
修改过程
1、将vlc的源代码下载到本地(http://www.videolan.org/vlc/download-ios.html)，有三个部分，分别将其解压命名为：MediaLibraryKit， MobileVLC， vlc。并放到一个文件夹VLC下。
2、修改libVLC for ios 的脚本文件 （VLC/vlc/extras/package/ios/build_for_iOS.sh），这个脚本文件主要是为ios版本的vlc下载ffmpeg，生成vlc的库。
View Code
#!/bin/sh set -e echo "Building libvlc for the iOS" if [ "$1" = "Simulator" ]; then PLATFORM="Simulator" TARGET="i686-apple-darwin10" ARCH="i386" else PLATFORM="OS" TARGET="arm-apple-darwin10" ARCH="armv7" OPTIM="-mno-thumb" fi THIS_SCRIPT_PATH=`pwd`/$0 pushd `dirname $0`/http://www.cnblogs.com/.. VLCROOT=`pwd` # Let's make sure VLCROOT is an absolute path popd DEVROOT="/Applications/Xcode.app/Contents/Developer/Platforms/iPhone${PLATFORM}.platform/Developer" IOS_SDK_ROOT="${DEVROOT}/SDKs/iPhone${PLATFORM}6.1.sdk" BUILDDIR=${VLCROOT}/build-ios-${PLATFORM} PREFIX=${VLCROOT}/install-ios-${PLATFORM} IOS_GAS_PREPROCESSOR="${VLCROOT}/extras/package/ios/resources/gas-preprocessor.pl" export AR="${DEVROOT}/usr/bin/ar" export RANLIB="${DEVROOT}/usr/bin/ranlib" export CFLAGS="-isysroot ${IOS_SDK_ROOT} -arch ${ARCH} -miphoneos-version-min=6.1 ${OPTIM}" export OBJCFLAGS="${CFLAGS}" if [ "$PLATFORM" = "Simulator" ]; then # Use the new ABI on simulator, else we can't build export OBJCFLAGS="-fobjc-abi-version=2 -fobjc-legacy-dispatch ${OBJCFLAGS}" fi export CPPFLAGS="${CFLAGS}" export CXXFLAGS="${CFLAGS}" export CPP="${DEVROOT}/usr/bin/llvm-cpp-4.2" export CXXCPP="${DEVROOT}/usr/bin/llvm-cpp-4.2" export CC="${DEVROOT}/usr/bin/llvm-gcc-4.2" export OBJC="${DEVROOT}/usr/bin/llvm-gcc-4.2" export CXX="${DEVROOT}/usr/bin/llvm-g++-4.2" export LD="${DEVROOT}/usr/bin/ld" export STRIP="${DEVROOT}/usr/bin/strip" if [ "$PLATFORM" = "OS" ]; then export LDFLAGS="-L${IOS_SDK_ROOT}/usr/lib -L${IOS_SDK_ROOT}/usr/lib/system -arch ${ARCH}" else export LDFLAGS="-syslibroot=${IOS_SDK_ROOT}/ -arch ${ARCH}" fi export PATH="/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:${VLCROOT}/extras/contrib/build/bin:${VLCROOT}/extras/package/ios/resources" echo "Boostraping contribs" pushd ${VLCROOT}/extras/contrib # contains gas-processor.pl export PATH=$PATH:${VLCROOT}/extras/package/ios/resources # The contrib will read the following export IOS_SDK_ROOT echo "Building contrib for iOS" ./bootstrap ${TARGET} ios make src echo "Building contrib for current host" ./bootstrap make popd if [ "$PLATFORM" = "OS" ]; then export AS="${IOS_GAS_PREPROCESSOR} ${CC}" export ASCPP="${IOS_GAS_PREPROCESSOR} ${CC}" else export AS="${DEVROOT}/usr/bin/as" export ASCPP="${DEVROOT}/usr/bin/as" fi echo "Bootstraping vlc" if ! [ -e ${VLCROOT}/configure ]; then ${VLCROOT}/bootstrap fi if [ ".$PLATFORM" != ".Simulator" ]; then # FIXME - Do we still need this? export AVCODEC_CFLAGS="-I${PREFIX}include" export AVCODEC_LIBS="-L${PREFIX}lib -lavcodec -lavutil -lz" export AVFORMAT_CFLAGS="-I${PREFIX}include" export AVFORMAT_LIBS="-L${PREFIX}lib -lavcodec -lz -lavutil -lavformat" fi mkdir -p ${BUILDDIR} pushd ${BUILDDIR} # Run configure only upon changes. if [ "${VLCROOT}/configure" -nt config.log -o \ "${THIS_SCRIPT_PATH}" -nt config.log ]; then CONTRIB_DIR=${VLCROOT}/extras/contrib/hosts/${TARGET}/ios \ ${VLCROOT}/configure \ --prefix="$PREFIX" \ --host="${TARGET}" \ --enable-debug \ --disable-shared \ --enable-static \ --disable-macosx \ --disable-macosx-defaults \ --disable-macosx-vout \ --disable-macosx-dialog-provider \ --disable-macosx-qtcapture \ --disable-macosx-eyetv \ --disable-macosx-vlc-app \ --with-macosx-sdk=${IO_SDK_ROOT} \ --enable-audioqueue \ --enable-ios-vout \ --enable-avcodec \ --enable-avformat \ --enable-swscale \ --enable-faad \ --disable-mad \ --disable-a52 \ --disable-fribidi \ --disable-macosx-audio \ --disable-qt4 --disable-skins2 \ --disable-libgcrypt \ --disable-remoteosd \ --disable-vcd \ --disable-postproc \ --disable-vlc \ --disable-vlm \ --disable-httpd \ --disable-nls \ --disable-glx \ --disable-visual \ --disable-lua \ --disable-sse \ --disable-neon \ --disable-mmx # MMX and SSE support requires llvm which is broken on Simulator fi CORE_COUNT=`sysctl -n machdep.cpu.core_count` let MAKE_JOBS=$CORE_COUNT+1 echo "Running make -j$MAKE_JOBS" make -j$MAKE_JOBS make install popd
对比原来的脚本，要注意有三点不同：一是SDK的路径，二是cpp的名称，三是LDFLAG的参数(多了一个system）。而你在修改的同时，要注意自己的SDK版本，路径；不同Xcode 的SDK路径名称不太一样，SDK 4.3版本，/Developer/Platform/xxx，SDK5以后/Applications/Xcode.app/Contents/Developer/Platform/xxx
3、修改生成播放器的脚本（VLC/MobileVLC/buildMobileVLC.sh)
View Code
View Code #!/bin/bash rm -rf ./MediaLibraryKit/External/MobileVLCKit rm -rf ./MobileVLC/External/MobileVLCKit rm -rf ./MobileVLC/External/MediaLibraryKit if [ "$1" = "Simulator" ]; then pushd vlc echo "--==-- Build for vlc (simulator version) --==--" pushd extras/package/ios ./build_for_iOS.sh Simulator popd echo "--==-- Build for vlc-MobileVLCKit (simulator version) --==--" pushd projects/macosx/framework xcodebuild -project MobileVLCKit.xcodeproj -target "Aggregate static plugins" -configuration "Release" -sdk iphonesimulator6.1 SDKROOT=iphonesimulator6.1 VALID_ARCHS=i386 ARCHS=i386 xcodebuild -project MobileVLCKit.xcodeproj -target "MobileVLCKit" -configuration "Release" -sdk iphonesimulator6.1 SDKROOT=iphonesimulator6.1 VALID_ARCHS=i386 ARCHS=i386 popd popd echo "--==-- Build for MediaLibraryKit (simulator version) --==--" pushd MediaLibraryKit ln -s http://www.cnblogs.com/vlc/projects/macosx/framework/build/Release-iphonesimulator External/MobileVLCKit xcodebuild -project MobileMediaLibraryKit.xcodeproj -configuration "Release" -sdk iphonesimulator6.1 SDKROOT=iphonesimulator6.1 VALID_ARCHS=i386 ARCHS=i386 popd echo "--==-- Build for MobileVLC (simulator version) --==--" pushd MobileVLC ln -s http://www.cnblogs.com/vlc/projects/macosx/framework/build/Release-iphonesimulator External/MobileVLCKit ln -s http://www.cnblogs.com/MediaLibraryKit/build/Release-iphonesimulator External/MediaLibraryKit xcodebuild -project MobileVLC.xcodeproj -configuration "Release" -sdk iphonesimulator6.1 SDKROOT=iphonesimulator6.1 VALID_ARCHS=i386 ARCHS=i386 popd else pushd vlc echo "--==-- Build for vlc (os version) --==--" pushd extras/package/ios ./build_for_iOS.sh popd echo "--==-- Build for vlc-MobileVLCKit (os version) --==--" pushd projects/macosx/framework xcodebuild -project MobileVLCKit.xcodeproj -target "Aggregate static plugins" -configuration "Release" -sdk iphoneos6.1 SDKROOT=iphoneos6.1 VALID_ARCHS=armv7 ARCHS=armv7 xcodebuild -project MobileVLCKit.xcodeproj -target "MobileVLCKit" -configuration "Release" -sdk iphoneos6.1 SDKROOT=iphoneos6.1 VALID_ARCHS=armv7 ARCHS=armv7 popd popd echo "--==-- Build for MediaLibraryKit (os version) --==--" pushd MediaLibraryKit ln -s http://www.cnblogs.com/vlc/projects/macosx/framework/build/Release-iphoneos External/MobileVLCKit xcodebuild -project MobileMediaLibraryKit.xcodeproj -configuration "Release" -sdk iphoneos6.1 SDKROOT=iphoneos6.1 VALID_ARCHS=armv7 ARCHS=armv7 popd echo "--==-- Build for MobileVLC (os version) --==--" pushd MobileVLC ln -s http://www.cnblogs.com/vlc/projects/macosx/framework/build/Release-iphoneos External/MobileVLCKit ln -s http://www.cnblogs.com/MediaLibraryKit/build/Release-iphoneos External/MediaLibraryKit xcodebuild -project MobileVLC.xcodeproj -configuration "Release" -sdk iphoneos6.1 SDKROOT=iphoneos6.1 VALID_ARCHS=armv7 ARCHS=armv7 popd fi
对比原来的脚本，一是不用git 下载，二是Simulator和 OS版本是用不同的方法编译
4、修改生成FFMpeg的config.h的Makefile文件，禁用汇编。
Makefile位于：/VLC/vlc/extras/contrib/src目录下。搜索第一个FFMPEGCONF，加入一个参数 --diable-asm。即FFMPEGCONF=--diable-asm。
5、修改Xcode 的SDK
为了编译libdvbpsi库，稍稍修改iOS SDK的源文件。这是因为编译时会报错说找不到"i386/limits.h"，所以需要把这个文件拷贝到他的搜寻目录中去。
- a) 找到目录：/Applications/Xcode.app/Contents/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs/iPhoneOS5.0.sdk/usr/include
- b) 在其中新建目录：i386
- c) 全局搜索某个i386目录下的limits.h和_limits.h文件，并将搜索到的这两个文件拷贝入刚才创建的目录中。
6、替换VLC/vlc/extras/contrib里的bootstrap内容如下，mac为10.7系统的请把其中10.8的文本都替换为10.7。就这是为什么一开始要你注意你的MaxOS环境。这里不修改，会报错找不到你的SDK
View Code
#!/bin/sh # *************************************************************************** # bootstrap : Set up config.mak # *************************************************************************** # Copyright (C) 2003-2009 the VideoLAN team # $Id$ # # Authors: Christophe Massiot <massiot@via.ecp.fr> # Derk-Jan Hartman <hartman at videolan dot org> # Felix Paul Kühne <fkuehne at videolan dot org> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. # *************************************************************************** if test "$#" -gt "2" -o "$1" = "-h" -o "$1" = "--help" ; then echo "Usage: $0 [host [distro]]" >&2 echo " Prepare config.mak file." >&2 exit 1 fi LANG=C export LANG set -e set +x BUILD=`gcc -dumpmachine` if test "$#" -ge "1"; then HOST="$1" else HOST="$BUILD" fi DISTRO= if test "$#" = "2"; then echo "Forcing distro.mak to use $2.mak" DISTRO="$2" HOST="$1" fi rm -f config.mak { echo "# Automatically generated by bootstrap." echo "# Make changes if you know what you're doing." } > config.mak rm -f distro.mak { echo "# Automatically generated by bootstrap" echo "# Make changes if you know what you're doing." } > distro.mak if test "$HOST" != "$BUILD"; then if test -z "$CC"; then CC="${HOST}-gcc" fi if test -z "$CXX"; then CXX="${HOST}-g++" fi if test -z "$LD"; then LD="${HOST}-ld" fi if test -z "$RANLIB"; then RANLIB="${HOST}-ranlib" fi if test -z "$AR"; then AR="${HOST}-ar" fi if test -z "$STRIP"; then STRIP="${HOST}-strip" fi fi case $HOST in *powerpc*|*ppc*) ARCH="ppc" ;; *86_64*) ARCH="x86_64" ;; *86*) ARCH="i386" ;; arm*eabi) ARCH="armel" ;; arm*) ARCH="arm" ;; esac echo "ARCH = $ARCH" >> config.mak # Check the HAVE_{OS} case $HOST in *darwin*) echo "HAVE_DARWIN_OS = 1" >> config.mak echo "HAVE_BSD = 1" >> config.mak ;; *linux*) echo "HAVE_LINUX = 1" >> config.mak ;; *bsd*) echo "HAVE_BSD = 1" >> config.mak ;; *wince*) echo "HAVE_WINCE = 1" >> config.mak ;; esac case $DISTRO$HOST in ppc-darwin) # Mac OS X < 10.4 echo "Your version of Mac OS X is too old!" >&2 echo "Compiling VLC requires 10.5.x or later" >&2 exit 1 ;; *-apple-darwin8) echo "Your version of Mac OS X is too old!" >&2 echo "Compiling and running VLC requires 10.5.x or later" >&2 exit 1 ;; powerpc-apple-darwin9) SDK_TARGET=10.8 echo "SDK_TARGET = ${SDK_TARGET}" >> config.mak echo "ENVP = MACOSX_DEPLOYMENT_TARGET=${SDK_TARGET}" >> config.mak echo "MACOSX_SDK = /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk" >> config.mak echo "HAVE_DARWIN_9 = 1" >> config.mak HAVE_DARWIN_9=1 HAVE_DARWIN_32=1 CFLAGS_TUNING=" -arch ppc -mtune=G4" EXTRA_CFLAGS=" -D\${ENVP} -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" EXTRA_LDFLAGS=" -arch ppc -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET} -Wl,-syslibroot,\${MACOSX_SDK}" CC="/Applications/Xcode.app/Contents/Developer/usr/bin/gcc-4.2" CXX="/Applications/Xcode.app/Contents/Developer/usr/bin/g++-4.2" LD="ld -arch ppc -syslibroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" echo "PATH = /bin:/usr/bin:/usr/local/bin:" >> config.mak DISTRO=darwin if test -e /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs; then echo "SDKs found. Everything is fine." >&2 else echo "ERROR:\nYour Developer Tools' SDKs were not found.\nYou need to add extra symbolic links to /Developer to achieve correctly\nbuilt contribs.\nHave a look at the OSX-Compile-HOWTO for details." >&2 exit 1 fi ;; i686-apple-darwin*) echo "Building for $DISTRO" SDK_TARGET=10.8 MIN_LD_VERSION_WITH_TEXT_RELOCATION=81 echo "SDK_TARGET = ${SDK_TARGET}" >> config.mak echo "HAVE_DARWIN_OS_ON_INTEL = 1" >> config.mak echo "HAVE_DARWIN_9 = 1" >> config.mak HAVE_DARWIN_9=1 if test `ld -v 2> /dev/stdout | sed -E 's/.*ld64-([0-9]+).*/\1/'` -lt ${MIN_LD_VERSION_WITH_TEXT_RELOCATION}; then echo "ERROR: Your ld version is unable to compile VLC.\nUpdate to Xcode 3.1 or higher." >&2 exit 1 fi echo "ENVP = MACOSX_DEPLOYMENT_TARGET=${SDK_TARGET}" >> config.mak echo "MACOSX_SDK = /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk" >> config.mak HAVE_DARWIN_32=1 CFLAGS_TUNING=" -march=prescott -mtune=generic -arch i386 -m32" EXTRA_CFLAGS=" -D\${ENVP} -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" EXTRA_LDFLAGS=" -arch i386 -isysroot \${MACOSX_SDK} -Wl,-syslibroot,\${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" CC="/Applications/Xcode.app/Contents/Developer/usr/bin/gcc-4.2" CXX="/Applications/Xcode.app/Contents/Developer/usr/bin/g++-4.2" echo "PATH = /bin:/usr/bin:/usr/local/bin" >> config.mak DISTRO=darwin if test -e /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs; then echo "SDKs found. Everything is fine." >&2 else echo "ERROR:\nYour Developer Tools' SDKs were not found.\nYou need to add extra symbolic links to /Developer to achieve correctly\nbuilt contribs.\nHave a look at the OSX-Compile-HOWTO for details." >&2 exit 1 fi if test $HOST = "i686-apple-darwin10"; then echo "HAVE_DARWIN_10 = 1" >> config.mak fi ;; x86_64-apple-darwin*) SDK_TARGET=10.8 echo "SDK_TARGET = ${SDK_TARGET}" >> config.mak echo "HAVE_DARWIN_OS_ON_INTEL = 1" >> config.mak echo "HAVE_DARWIN_9 = 1" >> config.mak echo "ENVP = MACOSX_DEPLOYMENT_TARGET=${SDK_TARGET}" >> config.mak echo "MACOSX_SDK = /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX${SDK_TARGET}.sdk" >> config.mak HAVE_DARWIN_64=1 CFLAGS_TUNING=" -march=core2 -mtune=core2 -m64 -arch x86_64" echo "HAVE_DARWIN_64 = 1" >> config.mak EXTRA_CFLAGS=" -D\${ENVP} -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" EXTRA_LDFLAGS=" -arch x86_64 -isysroot \${MACOSX_SDK} -Wl,-syslibroot,\${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}" echo "PATH = /bin:/usr/bin:/usr/local/bin" >> config.mak CC="/Applications/Xcode.app/Contents/Developer/usr/bin/gcc-4.2" CXX="/Applications/Xcode.app/Contents/Developer/usr/bin/g++-4.2" LD="ld" RANLIB="ranlib" AR="ar" STRIP="strip" DISTRO=darwin64 if test -e /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs; then echo "SDKs found. Everything is fine." >&2 else echo "ERROR:\nYour Developer Tools' SDKs were not found.\nYou need to add extra symbolic links to /Developer to achieve correctly\nbuilt contribs.\nHave a look at the OSX-Compile-HOWTO for details." >&2 exit 1 fi if test $HOST = "x86_64-apple-darwin10"; then echo "HAVE_DARWIN_10 = 1" >> config.mak fi ;; *mingw32ce) echo "HAVE_WINCE = 1" >> config.mak echo "PKG_CONFIG_PATH = \$(PREFIX)/lib/pkgconfig" >> config.mak EXTRA_CPPFLAGS=" -D_WIN32_WCE=0x0500" DISTRO=wince ;; *64-*mingw*) echo "HAVE_WIN64 = 1" >> config.mak echo "HAVE_WIN32 = 1" >> config.mak echo "PKG_CONFIG_PATH = \$(PREFIX)/lib/pkgconfig" >> config.mak EXTRA_CFLAGS="-O3" DISTRO=win64 ;; *mingw32*) echo "HAVE_WIN32 = 1" >> config.mak echo "PKG_CONFIG_PATH = \$(PREFIX)/lib/pkgconfig" >> config.mak EXTRA_CFLAGS=" -O3 -march=i686 -mtune=generic" DISTRO=win32 ;; i686-pc-cygwin) echo "HAVE_WIN32 = 1" >> config.mak echo "HAVE_CYGWIN = 1" >> config.mak CC="gcc -mno-cygwin -isystem /usr/include/mingw" CXX="g++ -mno-cygwin -isystem /usr/include/mingw" HOST=`$CC -dumpmachine` EXTRA_CFLAGS=" -mno-cygwin -isystem /usr/include/mingw" EXTRA_CPPFLAGS=" -mno-cygwin -isystem /usr/include/mingw" EXTRA_LDFLAGS=" -mno-cygwin" echo "PKG_CONFIG_PATH = \$(PREFIX)/lib/pkgconfig" >> config.mak DISTRO=win32 ;; arm-wince-pe) echo "PKG_CONFIG_PATH = \$(PREFIX)/lib/pkgconfig" >> config.mak EXTRA_CPPFLAGS=" -D_WIN32_WCE" DISTRO=wince ;; armeb-linux-uclibc) echo "HAVE_UCLIBC = 1" >> config.mak echo "HAVE_BIGENDIAN = 1" >> config.mak EXTRA_CFLAGS="-Os -march=armv5 -msoft-float" ;; arm-none-linux-gnueabi) if test -f /etc/maemo_version; then DISTRO=maemo echo 'HAVE_MAEMO = 1' >> config.mak EXTRA_CFLAGS=" -mcpu=cortex-a8 -mtune=cortex-a8 -march=armv7-a" EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpu=neon -mfloat-abi=softfp" EXTRA_CFLAGS="$EXTRA_CFLAGS -O3 -fno-tree-vectorize" else EXTRA_CFLAGS="-msoft-float" fi ;; *86_64*linux*) EXTRA_CFLAGS=" -fPIC" EXTRA_CPPFLAGS=" -fPIC" EXTRA_LDFLAGS=" -L/usr/lib64" echo "LIBRARY_PATH = /usr/lib64" >> config.mak echo "PKG_CONFIG_PATH = /usr/lib64/pkgconfig" >> config.mak echo "PKG_CONFIG_LIBDIR = /usr/lib64/pkgconfig" >> config.mak ;; *arm-apple-darwin*) EXTRA_CFLAGS=" -arch armv7" EXTRA_LDFLAGS=" -arch armv7" DISTRO="ios" ;; esac case "$DISTRO" in ios) echo 'HAVE_IOS = 1' >> config.mak if test -z "$IOS_SDK_ROOT"; then echo "ERROR:\nThe bootstrap script requires the IOS_SDK_ROOT environment variable to be set when building for iOS !" exit 1 fi EXTRA_CFLAGS+=" $CFLAGS" EXTRA_LDFLAGS+=" $LDFLAGS" EXTRA_CPPFLAGS+=" $CPPFLAGS" EXTRA_CXXFLAGS+=" $CXXFLAGS" echo "IOS_SDK_ROOT = ${IOS_SDK_ROOT}" >> config.mak ;; esac if test -z "${DISTRO}" -a "$HOST" = "$BUILD"; then if test -d "/usr/lib/pkgconfig"; then if test -z "$PKG_CONFIG_PATH"; then echo "PKG_CONFIG_PATH = /usr/lib/pkgconfig" >> config.mak fi if test -z "$PKG_CONFIG_LIBDIR"; then echo "PKG_CONFIG_LIBDIR = /usr/lib/pkgconfig" >> config.mak fi fi # Try to match distribution if test -f /etc/fedora-release; then DISTRO=fedora elif test -f /etc/maemo_version; then DISTRO=maemo echo 'HAVE_MAEMO = 1' >> config.mak elif test -f /etc/debian_version; then # NOTE: check for Debian *after* its derivatives DISTRO=debian fi fi # Default Unix-like systems test -z "${DISTRO}" && DISTRO=unix echo "BUILD = $BUILD" >> config.mak echo "HOST = $HOST" >> config.mak echo "PREFIX = `pwd`/hosts/$HOST/$DISTRO" >> config.mak mkdir -p hosts/$HOST ln -sfn $DISTRO hosts/$HOST/default_distro if [ "$HOST" = "$BUILD" ]; then ln -sfn hosts/$HOST/$DISTRO build fi echo "CC = ${CC}" >> config.mak echo "CXX = ${CXX}" >> config.mak echo "LD = ${LD}" >> config.mak echo "RANLIB = ${RANLIB}" >> config.mak echo "AR = ${AR}" >> config.mak echo "STRIP = ${STRIP}" >> config.mak echo "EXTRA_CFLAGS = ${CFLAGS_TUNING} ${EXTRA_CFLAGS}" >> config.mak echo "EXTRA_CPPFLAGS = ${EXTRA_CPPFLAGS} -isystem \$(PREFIX)/include" >> config.mak echo "EXTRA_LDFLAGS = ${EXTRA_LDFLAGS}" >> config.mak echo "EXTRA_PATH = ${EXTRA_PATH}" >> config.mak echo "DISTRO = ${DISTRO}" >> config.mak #CMAKE if test "$HOST" != "$BUILD"; then if test ${DISTRO} = "win32"; then echo "SET(CMAKE_SYSTEM_NAME Windows)" >> toolchain.cmake fi echo "SET(CMAKE_C_COMPILER ${CC})" >> toolchain.cmake echo "SET(CMAKE_CXX_COMPILER ${CXX})" >> toolchain.cmake echo "SET(CMAKE_FIND_ROOT_PATH `pwd` )" >> toolchain.cmake echo "set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)" >> toolchain.cmake echo "set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)" >> toolchain.cmake echo "set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)" >> toolchain.cmake fi if wget --version >/dev/null 2>&1; then echo "WGET = \"`which wget`\" -c --passive" >> config.mak elif test -z `curl --version >/dev/null 2>&1`; then echo "WGET = \"`which curl`\" -L -O" >> config.mak else echo "You need at least wget or curl to fetch the packages." >&2 exit 1 fi if svn --version >/dev/null 2>&1; then echo "SVN = \"`which svn`\"" >> config.mak else echo "You do not have a subversion client in your PATH." >&2 fi if git --version>/dev/null 2>&1; then echo "GIT = \"`which git`\"" >> config.mak else echo "You do not have a Git client in your PATH." >&2 fi if test -z "$CONTRIBS_RELEASE"; then echo "EXTRA_CFLAGS += -DNDEBUG" >> config.mak set +x echo echo "*****************************************************************" echo "* If you need contribs with all debug information, run this *" echo "* line and compile the libraries on your own. *" echo "* CONTRIBS_RELEASE=no ./bootstrap *" echo "*****************************************************************" fi if test $HAVE_DARWIN_9; then set +x echo echo "*****************************************************************" echo "* We are using GCC-4.2 on OS X, so compilation WILL FAIL if it *" echo "* is NOT installed. *" echo "*****************************************************************" fi if test $HAVE_DARWIN_32; then set +x echo echo "*****************************************************************" echo "* VLC will be compiled in 32bit mode. *" echo "* *" echo "* Re-run with the x86_64-apple-darwin* argument to turn on *" echo "* 64bit compilation for Intel-based Macs, whereas * is either *" echo "* 9 or 10 depending on your Darwin version. *" echo "* There is NO PPC64 support right now. *" echo "*****************************************************************" fi if test $HAVE_DARWIN_64; then set +x echo echo "*****************************************************************" echo "* VLC will be compiled in 64bit mode using the 10.5 SDK. *" echo "*****************************************************************" set -x fi case `uname` in Linux) CPUS=`grep -c ^processor /proc/cpuinfo` ;; *) CPUS=1 # default ;; esac echo "MAKEJOBS = -j$CPUS" >> config.mak echo echo "Using $CPUS processors"
7、执行终端命令 （在路径VLC下）
./MobileVLC/buildMobileVLC.sh
这里还并没有结束，因为接下来你要应付各种调试的问题，因为这个脚本实在是非常的不完善。我调试的方法比较直接，每次都解决掉log里出现的第一个问题，按部就班，到一直把所有问题都解决掉就可以了。
可能遇到的问题及顺序如下：
1，第一个make不通过，出现各种Command Not Found ： gcc，aclocal，glibtoolize。那是因为你的mac终端编译环境还没有配好的原因，首先Xcode现在已经不默认安装命令行工具了，你需要先把Xcode的Command Line Tool 安装后（安装方法自己google），就可以在终端中运行gcc了；然后你需要安装automake，autoconf，和libtool这些编译工具。这里我推荐你先安装brew，这是一个可以在mac下在终端里直接安装软件的方法。然后brew install automake autoconf libtool即可。
2，下载ffmepg的库过程中出错，这时你需要删掉/VLC/vlc/extras/contrib/src-arm-apple-darwin10-ios/src/里的库，重新编译几次就好了。
3，下载contrib macosx i386出错
"/usr/bin/curl" -L -O http://downloads.videolan.org/pub/videolan/testing/contrib/contrib-macosx-i386-34.tar.bz2
(cd tmp && tar jxvf ../contrib-macosx-i386-34.tar.bz2)
tar: Unrecognized archive format
tar: Error exit delayed from previous errors.
对于这个错误，先进入/vlc/extras/contrib目录，删除temp和/host/i686-apple-darwin11/ 下darwin这两个目录，然后手动去下载http://downloads.videolan.org/pub/videolan/contrib/contrib-macosx-i386-34.tar.bz2，替换该目录下的同名压缩包；该包正常大小为24.4M，而错误下载包只有168k；然后重新执行./build_for_iOS.sh，这下应该一切编译OK。
到最后所有的build SUCCESS都出现之后，你到VLC/MobileVLC目录下，就可以找到一个可以完美运行的工程。直接连机调试就可以了。
