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#!/bin/bash
# 设置临时文件夹,需要提前手动创建
export TMPDIR="/home/kelinlang/Workspace/ffmpeg-3.4.5/ffmpegtemp"
# 设置NDK路径
NDK=/home/kelinlang/Workspace/AndroidDev/android-ndk-r14b
# 设置编译针对的平台,可以根据实际需求进行设置
# 当前设置为最低支持android-14版本,arm架构
API=19
PLATFORM=arm-linux-androideabi
SYSROOT=$NDK/platforms/android-$API/arch-arm
ISYSROOT=$NDK/sysroot
ASM=$ISYSROOT/usr/include/$PLATFORM
# 设置编译工具链,4.9为版本号
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64
function build_one
{
./configure \
--enable-cross-compile \
--enable-static \
--disable-shared \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-avdevice \
--disable-doc \
--disable-symver \
--prefix=$PREFIX \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=android \
--arch=arm \
--sysroot=$SYSROOT \
#--extra-cflags="-Os -fpic $ADDI_CFLAGS" \#
--extra-cflags="-I$ASM -isysroot $ISYSROOT -D__ANDROID_API__=$API -U_FILE_OFFSET_BITS -Os -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -marm" \
--extra-ldflags="-marm"
$ADDITIONAL_CONFIGURE_FLAG
make clean
make
make install
# 合并生成的静态库
$TOOLCHAIN/bin/arm-linux-androideabi-ld \
-rpath-link=$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 \
-lc -lm -lz -ldl -llog --dynamic-linker=/system/bin/linker \
$TOOLCHAIN/lib/gcc/arm-linux-androideabi/4.9.x/libgcc.a
}
# 设置编译后的文件输出目录
CPU=arm
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-marm"
build_one