arm-linux-androideabi-gcc 无法创建可执行文件 - 为 android armeabi 设备编译 ffmpeg [英] arm-linux-androideabi-gcc is unable to create an executable - compile ffmpeg for android armeabi devices

问题描述

我正在尝试为 android armeabi 设备编译 ffmpeg.
我正在学习 roman10.net
他给定的构建脚本为 armv7-a 设备构建 ffmpeg.我想为 armeabi 构建它.

I am trying to compile ffmpeg for android armeabi devices.
I am following tutorial by roman10.net
His given build script builds ffmpeg for armv7-a devices. I want to build it for armeabi.

我的最终目标是在 android armeabi 和 armv7-a 设备上运行 ffmpeg 命令.

所以我将脚本的 CPU 部分从

So I change the script's CPU part from

#arm v7vfpv3
CPU=armv7-a
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
PREFIX=./android/$CPU
ADDITIONAL_CONFIGURE_FLAG=
build_one 

到

#arm v6
CPU=armv6
OPTIMIZE_CFLAGS="-marm -march=$CPU"
PREFIX=./android/$CPU 
ADDITIONAL_CONFIGURE_FLAG=
build_one

(我认为将其更改为 armv6 会构建与 armeabi 设备兼容的 ffmpeg.我错了吗?)

(I thought changing it to armv6 would build ffmpeg compatible with armeabi devices. m I wrong?)

疑点 1:
我还必须更改工具链吗?
即从 arm-linux-androideabi-4.4.3 到 arm-eabi-4.4.0 ?????

疑点 2:

当我尝试运行 ./build.sh(不更改工具链)时，它给了我以下错误:

When I try running ./build.sh (without changing toolchain) it gives me following error:

/home/chaitanya/android/android-ndk-r5b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc is unable to create an executable file.
C compiler test failed.

If you think configure made a mistake,.. blaah blahh blaah

之后我收到很多警告说:
sub_id"已弃用，许多其他函数已弃用警告.

after that I got lot of warnings saying:
‘sub_id’ is deprecated and many other function deprecated warnings.

平台:ubuntu 11.10
ffmpeg 版本:0.11.2
NDK:android-ndk-r5b

platform: ubuntu 11.10
ffmpeg version: 0.11.2
NDK : android-ndk-r5b

这是我的构建脚本:

#!/bin/bash
######################################################
# Usage:
# put this script in top of FFmpeg source tree
# ./build_android
# It generates binary for following architectures:
# ARMv6 
# ARMv6+VFP 
# ARMv7+VFPv3-d16 (Tegra2) 
# ARMv7+Neon (Cortex-A8)
# Customizing:
# 1. Feel free to change ./configure parameters for more features
# 2. To adapt other ARM variants
# set $CPU and $OPTIMIZE_CFLAGS 
# call build_one
######################################################
NDK=~/android/android-ndk-r5b
PLATFORM=$NDK/platforms/android-8/arch-arm/
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86
function build_one
{
./configure --target-os=linux \
    --prefix=$PREFIX \
    --enable-cross-compile \
    --extra-libs="-lgcc" \
    --arch=arm \
    #--cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    #--nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    --sysroot=$PLATFORM \
    --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS " \
    --disable-shared \
    --enable-static \
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
    --disable-everything \
    --enable-demuxer=mov \
    --enable-demuxer=h264 \
    --disable-ffplay \
    --enable-protocol=file \
    --enable-avformat \
    --enable-avcodec \
    --enable-decoder=rawvideo \
    --enable-decoder=mjpeg \
    --enable-decoder=h263 \
    --enable-decoder=mpeg4 \
    --enable-decoder=h264 \
    --enable-parser=h264 \
    --disable-network \
    --enable-zlib \
    --disable-avfilter \
    --disable-avdevice \
    $ADDITIONAL_CONFIGURE_FLAG

make clean
make  -j4 install
$PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/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 -lc -lm -lz -ldl -llog  --warn-once  --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
}

#arm v6
CPU=armv6
OPTIMIZE_CFLAGS="-marm -march=$CPU"
PREFIX=./android/$CPU 
ADDITIONAL_CONFIGURE_FLAG=
build_one

#arm v7vfpv3
#CPU=armv7-a
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
#PREFIX=./android/$CPU
#ADDITIONAL_CONFIGURE_FLAG=
#build_one

#arm v7vfp
#CPU=armv7-a
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU "
#PREFIX=./android/$CPU-vfp
#ADDITIONAL_CONFIGURE_FLAG=
#build_one

#arm v7n
#CPU=armv7-a
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=neon -marm -march=$CPU -mtune=cortex-a8"
#PREFIX=./android/$CPU 
#ADDITIONAL_CONFIGURE_FLAG=--enable-neon
#build_one

#arm v6+vfp
#CPU=armv6
#OPTIMIZE_CFLAGS="-DCMP_HAVE_VFP -mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU"
#PREFIX=./android/${CPU}_vfp 
#ADDITIONAL_CONFIGURE_FLAG=
#build_one

我该如何解决这个问题?出了什么问题?

How do I tackle this problem? what is going wrong?

推荐答案

我不确定这是否是您要查找的内容，但我创建了一个脚本以便为 Android 构建 FFmpeg 0.11.1.我修改了旧 Bambuser FFmpeg 版本提供的脚本，以便让它们与 0.11.1 一起使用.我目前正在使用这个脚本在我自己的应用程序中构建 FFmpeg，所以我知道构建工作.该脚本位于 http://servestream.sourceforge.net/build-ffmpeg.sh.我正在使用 android-ndk-r8b 和 Ubuntu 12.04 (x64) 进行构建.为了使用脚本，请执行以下操作:

I'm not sure if this is what you are looking but I created a script in order to build FFmpeg 0.11.1 for Android. I modified the scripts provided with older Bambuser FFmpeg builds in order to get them working with 0.11.1. I'm currently using this script to build FFmpeg in my own application so I know the build works. The script located at http://servestream.sourceforge.net/build-ffmpeg.sh. I'm using android-ndk-r8b and Ubuntu 12.04 (x64) to do the building. In order to use the script do the following:

1.) 下载脚本
2.) 打开脚本并修改 PACKAGE 变量以匹配应用程序的包
3.) 使其可执行:chmod +x build-ffmpeg.sh
4.) 设置脚本使用的NDK变量，例如:export NDK=/home/user/android-ndk-r8b
5.) 运行脚本:./build-ffmpeg.sh

1.) Download the script
2.) Open the script and modify the PACKAGE variable to match application's package
3.) Make it executable: chmod +x build-ffmpeg.sh
4.) Set the NDK variable used by the script, for example: export NDK=/home/user/android-ndk-r8b
5.) Run the script: ./build-ffmpeg.sh

编译后的二进制文件将位于当前工作目录中新创建的final-builds"文件夹中.(注意:该脚本为 armeabi、armeabi-v7a 和 x86 架构构建二进制文件)

The compiled binaries will be located in the newly created "final-builds" folder in the current working directory. (Note: the script builds binaries for armeabi, armeabi-v7a and x86 architectures)

我希望这能回答您的问题.

I hope this answers your question.

更新:

如果找不到脚本，http://sourceforge.net/p/servestream/code/HEAD/tree/ffmpeg/scripts/arm-build.sh

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