ffmpeg libx264编译出错

ffmpeg_video

我的编译过程如下:

1. 下载libx264
git clone git://git.videolan.org/x264.git

./configure  --enable-shared  --enable-static
make
make install

2.下载ffmpeg源码
git clone git://source.ffmpeg.org/ffmpeg.git
编写了一个 shell.sh 脚本
如果一开始执行shell.sh的话会报错:  找不到 config.mak 等一系列的.mak文件
所以
./configure
make
make install

然后再执行
./shell.sh
这里报错，找不到libx264

shell.sh如下:
export ANDROID_NDK=/home/cjc/android_/android-ndk-r9
export TOOLCHAIN=/tmp/ffmpeg2
export SYSROOT=$TOOLCHAIN/sysroot/
$ANDROID_NDK/build/tools/make-standalone-toolchain.sh --platform=android-14 --install-dir=$TOOLCHAIN

export PATH=$TOOLCHAIN/binPATH
export CC=arm-linux-androideabi-gcc
export LD=arm-linux-androideabi-ld
export AR=arm-linux-androideabi-ar

CFLAGS="-O3 -Wall -mthumb -pipe -fpic -fasm \
        -finline-limit=300 -ffast-math \
        -fstrict-aliasing -Werror=strict-aliasing \
        -fmodulo-sched -fmodulo-sched-allow-regmoves \
        -Wno-psabi -Wa,--noexecstack \
        -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ \
        -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ \
        -DANDROID -DNDEBUG"

EXTRA_CFLAGS="-march=armv7-a -mfpu=neon -mfloat-abi=softfp -mvectorize-with-neon-quad -I/usr/local/include"
EXTRA_LDFLAGS="-Wl,--fix-cortex-a8 -L/usr/local/lib"

FFMPEG_FLAGS="--prefix=/home/cjc/android_/tmp/ffmpeg2/build \
  --target-os=linux \
  --arch=arm \
  --enable-cross-compile \
  --cross-prefix=arm-linux-androideabi- \
  --enable-shared \
  --disable-symver \
  --disable-doc \
  --disable-ffplay \
  --disable-ffmpeg \
  --disable-ffprobe \
  --disable-ffserver \
  --disable-avdevice \
  --disable-avfilter \
  --disable-encoders \
  --disable-muxers \
  --disable-bsfs \
  --disable-filters \
  --disable-devices \
  --disable-everything \
  --enable-protocols  \
  --enable-parsers \
  --enable-demuxers \
  --disable-demuxer=sbg \
  --enable-decoders \
  --enable-encoders \
  --enable-gpl \
  --enable-libx264 \
  --enable-network \
  --enable-swscale  \
  --enable-asm \
  --enable-version3"

./configure $FFMPEG_FLAGS --extra-cflags="$CFLAGS $EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS"
make clean
make -j4
make install

rm libavcodec/inverse.o
  $CC -lm -lz -shared --sysroot=$SYSROOT -Wl,--no-undefined -Wl,-z,noexecstack $EXTRA_LDFLAGS libavutil/*.o libavutil/arm/*.o libavcodec/*.o libavcodec/arm/*.o libavformat/*.o libswresample/*.o libswscale/*.o -o $PREFIX/libffmpeg.so

请高手指点一下，谢谢.......

James.DF

1、x264要用NDK编译
2、编译好的x264库文件和头文件要安装到NDK中你用的platform对应的$sysroot目录下

T-Bagwell

能否将错误整体贴出来，或者将config.log贴上来

ffmpeg_video

BEGIN /tmp/ffconf.92AhT9um.c
    1        #include <math.h>
    2        float foo(float f, float g) { return truncf(f); }
    3        int main(void){ return (int) foo; }
END /tmp/ffconf.92AhT9um.c
arm-linux-androideabi-gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -O3 -Wall -mthumb -pipe -fpic -fasm -finline-limit=300 -ffast-math -fstrict-aliasing -Werror=strict-aliasing -fmodulo-sched -fmodulo-sched-allow-regmoves -Wno-psabi -Wa,--noexecstack -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -DANDROID -DNDEBUG -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -march=armv5 -std=c99 -fomit-frame-pointer -fPIC -marm -c -o /tmp/ffconf.Ko2jdmll.o /tmp/ffconf.92AhT9um.c
arm-linux-androideabi-gcc -Wl,--fix-cortex-a8 -Wl,--as-needed -o /tmp/ffconf.dwIPk9ds /tmp/ffconf.Ko2jdmll.o -lm -lz
check_lib x264.h x264_encoder_encode -lx264
check_header x264.h
check_cpp
BEGIN /tmp/ffconf.92AhT9um.c
    1        #include <x264.h>
    2        int x;
END /tmp/ffconf.92AhT9um.c
arm-linux-androideabi-gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -O3 -Wall -mthumb -pipe -fpic -fasm -finline-limit=300 -ffast-math -fstrict-aliasing -Werror=strict-aliasing -fmodulo-sched -fmodulo-sched-allow-regmoves -Wno-psabi -Wa,--noexecstack -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -DANDROID -DNDEBUG -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -march=armv5 -std=c99 -fomit-frame-pointer -fPIC -marm -E -o /tmp/ffconf.Ko2jdmll.o /tmp/ffconf.92AhT9um.c
/tmp/ffconf.92AhT9um.c:1:18: fatal error: x264.h: No such file or directory
compilation terminated.
ERROR: libx264 not found

孙悟空

编译x264的时候，需要确定一下安装目录，你的系统是什么的？
centos？ubuntu？

ffmpeg_video

ubuntu

T-Bagwell

装x264的时候可能遇到问题了
你可以试试
./configure --prefix=/usr --enable-shared --enable-static

ffmpeg_video

好，我再试试

ffmpeg_video

我粘帖数据过来，并发表之后，怎么突然不见了？

孙悟空

还没解决是吗？

ffmpeg_video

cjc@cjc-K55VD:~/android_/ffmpeg$ ./shell.sh
Auto-config: --toolchain=arm-linux-androideabi-4.6
Copying prebuilt binaries...
Copying sysroot headers and libraries...
Copying libstdc++ headers and libraries...
Copying files to: /tmp/ffmpeg2
Cleaning up...
Done.
ERROR: libx264 not found