android api 34 编译ffmpeg with libfdk-aac

• 利用ffmpeg-android-maker编译，地址Javernaut/ffmpeg-android-maker: Contains a script that assembles FFmpeg library for Android (github.com)
• libfdk-aac编译脚本

#!/bin/bash
NDK=$ANDROID_NDK_HOME  # 这里需要替换成你本地的 NDK 路径
HOST_TAG=linux-x86_64
TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG
ANDROID_LIB_PATH="$(pwd)/android"

API=34

function build_android
{
echo "Build fdk-aac for android $CPU"
./configure \
--host=$HOST \
--enable-shared \
--enable-static \
--prefix="$ANDROID_LIB_PATH/$CPU" \
 CPPFLAGS="-fPIC"

make clean
make -j8
make install
echo "Build fdk-aac for android $CPU completed"
}

# armeabi-v7a
CPU=armv7-a
HOST=arm-linux-android
export AR=$TOOLCHAIN/bin/llvm-ar
export AS=$TOOLCHAIN/bin/llvm-as
export LD=$TOOLCHAIN/bin/ld
export RANLIB=$TOOLCHAIN/bin/llvm-ranlib
export STRIP=$TOOLCHAIN/bin/llvm-strip
export CC=$TOOLCHAIN/bin/armv7a-linux-androideabi$API-clang
export CXX=$TOOLCHAIN/bin/armv7a-linux-androideabi$API-clang++
#export LD=${CC}
build_android

# arm64-v8a
CPU=armv8-a
HOST=aarch64-linux-android
export AR=$TOOLCHAIN/bin/llvm-ar
export AS=$TOOLCHAIN/bin/llvm-as
export LD=$TOOLCHAIN/bin/ld
export RANLIB=$TOOLCHAIN/bin/llvm-ranlib
export STRIP=$TOOLCHAIN/bin/llvm-strip
export CC=$TOOLCHAIN/bin/aarch64-linux-android$API-clang
export CXX=$TOOLCHAIN/bin/aarch64-linux-android$API-clang++
#export LD=${CC}
build_android

• 修改ffmpeg-android-maker/scripts/ffmpeg/build.sh 中 configure部分内容，这里添加了disable-doc，否则会报cc1错误

./configure \
  --prefix=${BUILD_DIR_FFMPEG}/${ANDROID_ABI} \
  --enable-cross-compile \
  --target-os=android \
  --arch=${TARGET_TRIPLE_MACHINE_ARCH} \
  --sysroot=${SYSROOT_PATH} \
  --cc=${FAM_CC} \
  --cxx=${FAM_CXX} \
  --ld=${FAM_LD} \
  --ar=${FAM_AR} \
  --as=${FAM_CC} \
  --nm=${FAM_NM} \
  --ranlib=${FAM_RANLIB} \
  --strip=${FAM_STRIP} \
  --extra-cflags="-O3 -fPIC $DEP_CFLAGS" \
  --extra-ldflags="$DEP_LD_FLAGS" \
  --enable-shared \
  --disable-static \
  --disable-vulkan \
  --enable-nonfree \
  --enable-libfdk-aac \
  --disable-doc \
  --pkg-config=${PKG_CONFIG_EXECUTABLE} \
  ${EXTRA_BUILD_CONFIGURATION_FLAGS} \
  $ADDITIONAL_COMPONENTS || exit 1

• export PKG_CONFIG_PATH=${FDK_PKG_CONFIG_PATH}:${PKG_CONFIG_PATH}，即fdk-aac生成的pkgconfig路径

• ./ffmpeg-android-maker.sh -abis=arm64 -android=34