废话：
闲来蛋疼地搞起来好久没弄的NDK编程，念头一起想把之前一直没编译的ffmpeg编译一遍。
太久没用，折腾来好久，果然知识都生疏，所以还是整理一下吧。
正文：
先说说自己的环境配置，不同环境下确实还是有不少差别的。
操作系统：ubuntu 12
NDK版本：r9 ffmpeg版本：2.0.1
git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
SLIBNAME_WITH_MAJOR=‘$(SLIBNAME).$(LIBMAJOR)‘ LIB_INSTALL_EXTRA_CMD=‘$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"‘ SLIB_INSTALL_NAME=‘$(SLIBNAME_WITH_VERSION)‘ SLIB_INSTALL_LINKS=‘$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)‘
SLIBNAME_WITH_MAJOR=‘$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)‘ LIB_INSTALL_EXTRA_CMD=‘$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"‘ SLIB_INSTALL_NAME=‘$(SLIBNAME_WITH_MAJOR)‘ SLIB_INSTALL_LINKS=‘$(SLIBNAME)‘理由：为了libavcodec.so等共享库编译成适用于Android平台的。
sudo chmod +x build_android.sh ./build_android.sh
$(pwd)/android/
#!/bin/bash
NDK=$HOME/Android/android-ndk-r9
SYSROOT=$NDK/platforms/android-8/arch-arm/
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86
function build_one
{
./configure --prefix=$PREFIX --enable-shared --disable-static --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --disable-doc --disable-symver --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- --target-os=linux --arch=arm --enable-cross-compile --sysroot=$SYSROOT --extra-cflags="-Os -fpic $ADDI_CFLAGS" --extra-ldflags="$ADDI_LDFLAGS" $ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
}
CPU=arm
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-marm"
build_one#!/bin/bash
NDK=$HOME/Android/android-ndk-r9
PLATFORM=$NDK/platforms/android-8/arch-arm/
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86
function build_one
{
./configure --prefix=$PREFIX --disable-shared --enable-static --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --disable-doc --disable-symver --disable-everything --enable-decoder=h264 --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- --target-os=linux --arch=arm --enable-cross-compile --sysroot=$PLATFORM --extra-cflags="-Os -fpic $ADDI_CFLAGS" --extra-ldflags="$ADDI_LDFLAGS" $ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
}
function build_d
{
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PREBUILT/usr/lib -soname libffmpeg.so -shared -nostdlib -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a libswresample/libswresample.a -lc -lm -lz -ldl -llog --warn-once --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.6/libgcc.a
}
function build_d0
{
$PREBUILT/bin/arm-linux-androideabi-gcc --sysroot=$PLATFORM -shared -o $PREFIX/libffmpeg.so -Wl,--whole-archive libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a libswresample/libswresample.a -Wl,--no-whole-archive -lm -lz
}
CPU=arm
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-marm"
build_one
build_d0LOCAL_PATH:= $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE:= libavcodec LOCAL_SRC_FILES:= lib/libavcodec-55.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE:= libavformat LOCAL_SRC_FILES:= lib/libavformat-55.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE:= libswscale LOCAL_SRC_FILES:= lib/libswscale-2.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE:= libavutil LOCAL_SRC_FILES:= lib/libavutil-52.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE:= libavfilter LOCAL_SRC_FILES:= lib/libavfilter-3.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY) include $(CLEAR_VARS) LOCAL_MODULE:= libwsresample LOCAL_SRC_FILES:= lib/libswresample-0.so LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include include $(PREBUILT_SHARED_LIBRARY)
LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := tutorial01 LOCAL_SRC_FILES := tutorial01.c LOCAL_LDLIBS := -llog -ljnigraphics -lz LOCAL_SHARED_LIBRARIES := libavformat libavcodec libswscale libavutil include $(BUILD_SHARED_LIBRARY) $(call import-module,ffmpeg-2.0.1/android/arm)
ubuntu下NDK9交叉编译ffmpeg,布布扣,bubuko.com
原文：http://blog.csdn.net/mockmoon2011/article/details/23299159