使用NDK交叉編譯ffmpeg, android後台可執行。

 

1，編譯fdk-aac

 

unzip fdk-aac.zip

cd mstorsjo-fdk-aac*

autoreconf -fiv

使用如下的配置文件

BUILD_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

CC_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-gcc

CPP_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-cpp

./configure

--prefix=$BUILD_PATH

--build=arm

CC=$CC_PATH

CXX=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-g++

--host=arm-linux

--enable-static

然後

Make

Make installl

2,編譯libx264

wget http://download.videolan.org/pub/x264/snapshots/last_x264.tar.bz2

tar xjvf last_x264.tar.bz2

cd x264-snapshot*

使用如下confiure

export ARM_ROOT=/home/zangcf/cross_compile/android-ndk-r9b

export ARM_INC=$ARM_ROOT/platforms/android-8/arch-arm/usr/include/

export ARM_LIB=$ARM_ROOT/platforms/android-8/arch-arm/usr/lib/

export ARM_TOOL=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64

export ARM_LIBO=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.8

export PATH=$ARM_TOOL/bin:$PATH

export ARM_PRE=arm-linux-androideabi

 

 

./configure --prefix=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

--extra-cflags= -I$ARM_INC -fPIC -DANDROID -fpic -mthumb-interwork -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -Wno-psabi -march=armv5te -mtune=xscale -msoft-float -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -DANDROID -Wa,--noexecstack -MMD -MP

--extra-ldflags= -nostdlib -Bdynamic -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,nocopyreloc -Wl,-soname,/system/lib/libz.so -Wl,-rpath-link=$ARM_LIB,-dynamic-linker=/system/bin/linker -L$ARM_LIB -nostdlib $ARM_LIB/crtbegin_dynamic.o $ARM_LIB/crtend_android.o -lc -lm -ldl -lgcc

--cross-prefix=${ARM_PRE}- --disable-asm --host=arm-linux

 

make

make install

make distclean

 

2, 下載編譯libvpx

wget http://webm.googlecode.com/files/libvpx-v1.3.0.tar.bz2

tar xjvf libvpx-v1.3.0.tar.bz2

cd libvpx-v1.3.0

./configure --sdk-path=/home/zangcf/cross_compile/android-ndk-r9b --target=armv7-android-gcc

--disable-runtime-cpu-detect

--prefix=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

Make

Make install

 

3, libogg

下載最新版本libogg-1.3.1.tar.gz，注意老版本會有問題。

使用如下configure

 

#!/bin/sh

BUILD_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

CC_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-gcc

CPP_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-cpp

./configure

--prefix=$BUILD_PATH

--build=arm

CC=$CC_PATH

CPP=$CPP_PATH

--host=arm-linux

--enable-static

 

Make

Make install

 

4，libvorbis

下載最新版本libvorbis-1.3.4.tar.gz，注意老版本可能會有問題

使用如下的configure

#!/bin/sh

BUILD_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

CC_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-gcc

CPP_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-cpp

./configure

--prefix=$BUILD_PATH

--build=arm

CC=$CC_PATH

CPP=$CPP_PATH

--host=arm-linux

--enable-static

 

Make

Make install

 

5，解決NDK交叉編譯 selected processor does not support ARM mode libtheora的錯誤

下載最新的libtheora, wget http://downloads.xiph.org/releases/theora/libtheora-1.2.0alpha1.tar.gz

解壓縮，然後使用如下configure來編譯

#!/bin/sh

BUILD_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

CC_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-gcc

CPP_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-cpp

./configure

--prefix=$BUILD_PATH

--build=arm

CC=$CC_PATH

CPP=$CPP_PATH

--host=arm-linux

--enable-static

--with-ogg=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

AS=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-as

AR=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-ar

然後make，結果出現如下錯誤

selected processor does not support ARM mode

很多很多

通過對編譯文件的仔細研究，發現只要加一個

--disable-asm

配置選項，就可以完全解決這個問題

 

6，下載lame-3.99.5

解壓，然後使用如下配置文件配置

#!/bin/sh

BUILD_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

CC_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-gcc

CPP_PATH=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-cpp

./configure

--prefix=$BUILD_PATH

--build=arm

CC=$CC_PATH

CPP=$CPP_PATH

--host=arm-linux

--enable-static

AS=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-as

AR=/opt/android-ndk-toolchain/bin/arm-linux-androideabi-ar

 

然後

Make

Make install

 

 

---libass 和libopus

 

 

4, 下載編譯ffmpeg

 

wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2

tar xjvf ffmpeg-snapshot.tar.bz2

cd ffmpeg

使用如下configure

export ARM_ROOT=/home/zangcf/cross_compile/android-ndk-r9b

export ARM_INC=$ARM_ROOT/platforms/android-8/arch-arm/usr/include/

export ARM_LIB=$ARM_ROOT/platforms/android-8/arch-arm/usr/lib/

export ARM_TOOL=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64

export ARM_LIBO=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.8

export PATH=$ARM_TOOL/bin:$PATH

export ARM_PRE=arm-linux-androideabi

export LIB_INC=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/include

export LIB_LIB=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/lib

 

 

./configure --target-os=linux

--arch=armv5te

--enable-cross-compile

--cc=$ARM_TOOL/bin/${ARM_PRE}-gcc

--cross-prefix=$ARM_TOOL/bin/${ARM_PRE}-

--extra-cflags= -fPIC -DANDROID -fpic -mthumb-interwork -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -Wno-psabi -march=armv5te -mtune=xscale -msoft-float -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -D

ANDROID -Wa,--noexecstack -MMD -MP

--enable-static

--disable-shared --enable-libx264 --enable-gpl

--disable-asm --disable-yasm

--prefix=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

--disable-amd3dnow --disable-amd3dnowext --disable-mmx --disable-sse --disable-ssse3

--extra-cflags=-I$ARM_INC -std=gnu99 -I$LIB_INC

--extra-libs=-lc -lm -ldl -lgcc -lz -lx264

--extra-ldflags= -L$LIB_LIB -Wl,-rpath-link=$LIB_LIB -nostdlib -Bdynamic -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,nocopyreloc -Wl,-soname,/system/lib/libz.so

-Wl,-rpath-link=$ARM_LIB,-dynamic-linker=/system/bin/linker -L$ARM_LIB -nostdlib $ARM_LIB/crtbegin_dynamic.o $ARM_LIB/crtend_android.o

/////////////////////////////////////////////////////////////////////

執行configure的時候，怎麼都提示找不到h264,經過仔細分析研讀，分析configure文件，發現是x264的編譯選項有問題，少了一個--enable-static

加上這個選項，重新編譯x264,呵呵ffmpeg的配置編譯都通過了。

make

make install

make distclean

hash -r

 

 

最後確定的configure需要增加很多解碼工具，配置如下

export ARM_ROOT=/home/zangcf/cross_compile/android-ndk-r9b

export ARM_INC=$ARM_ROOT/platforms/android-8/arch-arm/usr/include/

export ARM_LIB=$ARM_ROOT/platforms/android-8/arch-arm/usr/lib/

export ARM_TOOL=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64

export ARM_LIBO=/home/zangcf/cross_compile/android-ndk-r9b/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.8

export PATH=$ARM_TOOL/bin:$PATH

export ARM_PRE=arm-linux-androideabi

export LIB_INC=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/include

export LIB_LIB=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/lib

PKG_CONFIG_PATH=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/lib/pkgconfig

 

./configure --target-os=linux

--pkg-config=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build/lib/pkgconfig

--arch=armv5te

--enable-cross-compile

--cc=$ARM_TOOL/bin/${ARM_PRE}-gcc

--cross-prefix=$ARM_TOOL/bin/${ARM_PRE}-

--extra-cflags= -fPIC -DANDROID -fpic -mthumb-interwork -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -Wno-psabi -march=armv5te -mtune=xscale -msoft-float -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -D ANDROID -Wa,--noexecstack -MMD -MP -I$LIB_INC -I$ARM_INC -std=gnu99

--enable-static

--disable-shared --enable-libx264 --enable-gpl

--disable-asm --disable-yasm

--prefix=/home/zangcf/ffmpeg/ffmpeg_arm/ffmpeg_build

--disable-amd3dnow --disable-amd3dnowext --disable-mmx --disable-sse --disable-ssse3

--extra-libs=-lc -lm -ldl -lgcc -lz -lx264 -lopus

--extra-ldflags= -L$LIB_LIB -Wl,-rpath-link=$LIB_LIB -nostdlib -Bdynamic -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,nocopyreloc -Wl,-soname,/system/lib/libz.so

-Wl,-rpath-link=$ARM_LIB,-dynamic-linker=/system/bin/linker -L$ARM_LIB -nostdlib $ARM_LIB/crtbegin_dynamic.o $ARM_LIB/crtend_android.o

--enable-libfdk-aac

--enable-nonfree

--enable-libvpx

--enable-libvorbis

--enable-libtheora

--enable-libmp3lame