android - FFMPEG 在 ubuntu 上为 android 构建

Question

I am developing a media app which provides support for all video formats for implementing this feature we require FFMPEG the very best library for codecs. Compiling FFMPEG on windows for android is very long battle so I migrated to ubuntu I have almost compiled it shows the the binaries but it gives at last point following message

>AR libpostproc/libpostproc.a
AR  libswresample/libswresample.a
AR  libswscale/libswscale.a
AR  libavcodec/libavcodec.a
AR  libavutil/libavutil.a
INSTALL libavfilter/libavfilter.a
INSTALL libavformat/libavformat.a
INSTALL libavresample/libavresample.a
INSTALL libpostproc/libpostproc.a
INSTALL libswresample/libswresample.a
INSTALL libswscale/libswscale.a
INSTALL libavutil/libavutil.a
LD  ffmpeg_g
INSTALL libavcodec/libavcodec.a
CP  ffmpeg
STRIP   ffmpeg
skipping strip ffmpeg
INSTALL install-progs-yes
INSTALL ffmpeg
/home/akshay/Desktop/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-ld: -: unknown option

Here is my script

#!/bin/bash
NDK=/home/akshay/Desktop/android-ndk-r9c
PLATFORM=$NDK/platforms/android-8/arch-arm
PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
PREFIX=./android-ffmpeg
function build_one
{
    ./configure --target-os=linux --prefix=$PREFIX \
    --enable-cross-compile \
    --enable-runtime-cpudetect \
    --disable-asm \
    --arch=arm \
    #--cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
    --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
    --disable-stripping \
    #--nm=$PREBUILT/bin/arm-linux-androideabi-nm \
    --sysroot=$PLATFORM \
    --enable-nonfree \
    --enable-version3 \
    --disable-everything \
    --enable-gpl \
    --disable-doc \
    --enable-avresample \
    --enable-demuxer=rtsp \
    --enable-muxer=rtsp \
    --disable-ffplay \
    --disable-ffserver \
    --enable-ffmpeg \
    --disable-ffprobe \
    --enable-encoders \
    --enable-decoders \
    --enable-protocols \
    --enable-hwaccels \
    --enable-zlib \
    --disable-devices \
    --disable-avdevice \
    --extra-cflags="-I/home/android-ffmpeg/include -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a" \
    --extra-ldflags="-L/home/android-ffmpeg/lib"
    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$PLATFORM/usr/lib -L$PREFIX/lib  -soname libffmpeg.so -shared -  nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavfilter/     libavfilter.a libavresample/libavresample.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/4.8/libgcc.a
}
build_one

请告诉我脚本中的任何错误

Answer 1

-ldl 后面有一个未使用的“-” . '-' 和 'log' 之间的空格必须省略。