Shell script to build FFmpeg for Android.

build_android.sh

#!/bin/bash

# 当前系统
HOST_TAG=darwin-x86_64

# 支持的 Android 最低系统版本
MIN=21

# NDK 根目录
NDK=$ANDROID_NDK_HOME

TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG
AR=$TOOLCHAIN/bin/arm-linux-androideabi-ar
AS=$TOOLCHAIN/bin/arm-linux-androideabi-as
NM=$TOOLCHAIN/bin/arm-linux-androideabi-nm
RANLIB=$TOOLCHAIN/bin/arm-linux-androideabi-ranlib
STRIP=$TOOLCHAIN/bin/arm-linux-androideabi-strip

function build() {

  ARCH=$1
  CPU=$2

  # 编译目的目录
  PREFIX=$(pwd)/android/$CPU

  case "$ARCH" in
  "arm")
    CC=$TOOLCHAIN/bin/clang
    CXX=$TOOLCHAIN/bin/clang++
    ;;
  *)
    CC=$TOOLCHAIN/bin/$ARCH-linux-android$MIN-clang
    CXX=$TOOLCHAIN/bin/$ARCH-linux-android$MIN-clang++
    ;;
  esac

  ./configure \
    --prefix=$PREFIX \
    --pkg-config-flags="--static" \
    --ar=$AR \
    --as=$AS \
    --cc=$CC \
    --cxx=$CXX \
    --nm=$NM \
    --ranlib=$RANLIB \
    --strip=$STRIP \
    --arch=$ARCH \
    --target-os=android \
    --disable-shared \
    --disable-asm \
    --disable-ffprobe \
    --disable-ffplay \
    --disable-ffmpeg \
    --disable-ffserver \
    --disable-debug \
    --disable-symver \
    --disable-doc \
    --disable-stripping \
    --disable-programs \
    --disable-avdevice \
    --disable-filters \
    --disable-muxers \
    --enable-static \
    --enable-small \
    --enable-neon \
    --enable-hwaccels \
    --enable-postproc \
    --enable-network \
    --enable-runtime-cpudetect \
    --enable-protocol=udp \
    --enable-demuxer=rtsp \
    --enable-demuxer=sdp \
    --enable-decoder=h264 \
    --enable-decoder=hevc \
    --enable-decoder=mjpeg \
    --enable-bsf=h264_mp4toannexb \
    --enable-muxer=mp4 \
    --enable-protocol=file \
    --enable-cross-compile \
    --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
    --extra-ldflags="$ADDI_LDFLAGS"
  make clean
  make -j6
  make install
}

# 支持的 Android CUP 架构
#ARCH=arm
#CPU=arm

#ARCH=aarch64
#CPU=armv8-a

#ARCH=x86_64
#CPU=x86_64

echo "build armeabi"
build arm arm

echo "build arm64-v8a"
build aarch64 armv8-a

echo "build x86_64"
build x86_64 x86_64