Mac ndk21 交叉ffmpeg目前

#!/bin/bash
 
#make clean
# NDK的路径，根据自己的安装位置进行设置

export NDK=/Users/wangt/Library/Android/sdk/ndk/21.4.7075529
export SYSROOT=$NDK/toolchains/llvm/prebuilt/darwin-x86_64/sysroot/
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/darwin-x86_64/
export CPU=arm
export PREFIX=$(pwd)/android/$CPU
export ADDI_CFLAGS="-marm"
function build_one
{
./configure 
--prefix=$PREFIX 
--target-os=android 
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- 
--arch=arm 
--sysroot=$SYSROOT 
--extra-cflags="-Os -fpic $ADDI_CFLAGS" 
--extra-ldflags="$ADDI_LDFLAGS" 
--enable-shared 
--enable-runtime-cpudetect 
--enable-gpl 
--enable-small 
--enable-cross-compile 
--cc=$TOOLCHAIN/bin/armv7a-linux-androideabi21-clang 
--disable-debug 
--disable-static 
--disable-doc 
--disable-asm 
--disable-ffmpeg 
--disable-ffplay 
--disable-ffprobe 
--enable-postproc 
--enable-avdevice 
--disable-symver 
--disable-stripping 
$ADDITIONAL_CONFIGURE_FLAG
#
#  --nm=$TOOLCHAIN/bin/arm-linux-androideabi-nm 

# 这里是定义用几个CPU编译，我用4个，一般在5分钟之内编译完成
make -j4
make install
}
build_one