--disable-shared \
--enable-static \
因为最后会将文件合成libffmpeg.so文件,所以就不需要去改configure文件了!!
$TOOLCHAIN/bin/arm-linux-androideabi-ld \
-rpath-link=$SYSROOT/usr/lib \
-L$SYSROOT/usr/lib \
-L$PREFIX/lib \
-soname libffmpeg.so -shared -nostdlib -Bsymbolic --whole-archive --no-undefined -o \
$PREFIX/libffmpeg.so \
libavcodec/libavcodec.a \
libavfilter/libavfilter.a \
libswresample/libswresample.a \
libavformat/libavformat.a \
libavutil/libavutil.a \
libswscale/libswscale.a \
libavdevice/libavdevice.a \
-lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker \
$TOOLCHAIN/lib/gcc/arm-linux-androideabi/4.9.x/libgcc.a
编译结果.png
$TOOLCHAIN/bin/arm-linux-androideabi-strip $PREFIX/libffmpeg.so
#!/bin/bash
NDK=/Users/Cry/Library/Android/sdk/android-ndk-r14b
SYSROOT=$NDK/platforms/android-14/arch-arm/
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
CPU=arm
# PREFIX=$(pwd)/android/$CPU
PREFIX=/Users/Cry/Documents/FFmpeg/1017/small_one_strip/$CPU
ADDI_CFLAGS=" -I$SYSROOT/usr/include"
ADDI_LDFLAGS=""
function build_arm
{
./configure \
--prefix=$PREFIX \
--disable-shared \
--enable-static \
--disable-encoders \
--disable-muxers \
--disable-decoders \
--enable-decoder=h264 \
--enable-decoder=aac \
--disable-demuxers \
--enable-demuxer=mov \
--enable-demuxer=m4a \
--disable-parsers \
--enable-parser=aac \
--enable-parser=h264 \
--disable-protocols \
--enable-protocol=file \
--disable-filters \
--enable-filter=scale \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-symver \
--disable-avresample \
--enable-small \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=linux \
--arch=arm \
--enable-cross-compile \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
$TOOLCHAIN/bin/arm-linux-androideabi-ld \
-rpath-link=$SYSROOT/usr/lib \
-L$SYSROOT/usr/lib \
-L$PREFIX/lib \
-soname libffmpeg.so -shared -nostdlib -Bsymbolic --whole-archive --no-undefined -o \
$PREFIX/libffmpeg.so \
libavcodec/libavcodec.a \
libavfilter/libavfilter.a \
libswresample/libswresample.a \
libavformat/libavformat.a \
libavutil/libavutil.a \
libswscale/libswscale.a \
libavdevice/libavdevice.a \
-lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker \
$TOOLCHAIN/lib/gcc/arm-linux-androideabi/4.9.x/libgcc.a
$TOOLCHAIN/bin/arm-linux-androideabi-strip $PREFIX/libffmpeg.so
echo "compile complete!!"
}
build_arm
编译结果.png
直接使用nkd大于14版本的进行编译时
问题表现.png
https://android.googlesource.com/platform/ndk/+/ndk-r15-release/docs/UnifiedHeaders.md
STANDALONE_DIR=/tmp/my-android-toolchain/
API=14
TARGET = arm
function standalone{
$NDK/build/tools/make-standalone-toolchain.sh \
--arch=$TARGET --platform=android-$API --install-dir=$STANDALONE_DIR
}
standalone
SYSROOT=$STANDALONE_DIR/sysroot
TOOLCHAIN=$STANDALONE_DIR
注意这里是编译生产多个so文件的脚本。同时需要去改configure文件!!
#!/bin/bash
NDK=/Users/Cry/Library/Android/sdk/ndk-bundle
STANDALONE_DIR=/private/tmp/my-android-toolchain/
SYSROOT=$STANDALONE_DIR/sysroot
TOOLCHAIN=$STANDALONE_DIR
TRIPLE=arm-linux-androideabi
API=14
TARGET = arm
CPU=arm
# PREFIX=$(pwd)/android/$CPU
PREFIX=/Users/Cry/Documents/FFmpeg/1017/small_new/$CPU
ADDI_CFLAGS=""
ADDI_LDFLAGS=""
ADDITIONAL_CONFIGURE_FLAG=""
function standalone{
./$NDK/build/tools/make-standalone-toolchain.sh \
--arch=$TARGET --platform=android-$API --install-dir=$STANDALONE_DIR
}
standalone
function build_arm
{
./configure \
--prefix=$PREFIX \
--enable-shared \
--disable-static \
--disable-encoders \
--disable-muxers \
--disable-decoders \
--enable-decoder=h264 \
--enable-decoder=aac \
--disable-demuxers \
--enable-demuxer=mov \
--enable-demuxer=m4a \
--disable-parsers \
--enable-parser=aac \
--enable-parser=h264 \
--disable-protocols \
--enable-protocol=file \
--disable-filters \
--enable-filter=scale \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-symver \
--disable-avresample \
--enable-small \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=linux \
--arch=arm \
--enable-cross-compile \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
$ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
}
build_arm
当编译成一个SO文件时,报错如下
编译成单个SO时报错.png
因为新版本的Ndk改了对应的方法,变成了内联函数。所以会找不到应用。 暂时没找到办法解决。