使用NDK交叉編譯ffmpeg+libx264找不到libx264的解決方法

使用NDK交叉編譯ffmpeg+libx264

1，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

FFmpeg 的詳細介紹：請點這裡
FFmpeg 的下載地址：請點這裡