NDK编译ffmpeg脚本

#!/bin/bash if [ ! $# == 1 ]; then echo "Usage: $0 [0|1|2]" exit 1 fi # 使用环境变量中的输出目录 PREFIX="${FFMPEG_OUTPUT_DIR}" # Toolchain setup TOOLCHAIN=${NDK_HOME}/toolchains/llvm/prebuilt/linux-x86_64 SYSROOT=${TOOLCHAIN}/sysroot # 确保输出目录存在 mkdir -p ${PREFIX}/lib mkdir -p ${PREFIX}/include # ABI configuration case ${ARCH_ABI} in armeabi-v7a) TARGET=armv7a-linux-androideabi CFLAGS="-march=armv7-a -mfpu=neon -D__ARM_ARCH_7A__ -O3 -fPIC -DANDROID" LDFLAGS="" TARGET_ARCH_OPTION="--arch=arm --enable-neon" ;; arm64-v8a) TARGET=aarch64-linux-android CFLAGS="-march=armv8-a -D__ARM_ARCH_8A__ -O3 -fPIC -DANDROID" LDFLAGS="" TARGET_ARCH_OPTION="--arch=aarch64" ;; *) echo "Unsupported ABI: ${ARCH_ABI}" exit 1 ;; esac # 编译器路径设置 CC="${TOOLCHAIN}/bin/${TARGET}${ANDROID_API}-clang" CXX="${TOOLCHAIN}/bin/${TARGET}${ANDROID_API}-clang++" AR="${TOOLCHAIN}/bin/llvm-ar" RANLIB="${TOOLCHAIN}/bin/llvm-ranlib" STRIP="${TOOLCHAIN}/bin/llvm-strip" # 导出环境变量 export CC CXX AR RANLIB STRIP export CFLAGS LDFLAGS echo "==================================================================" echo "FFmpeg Version: ${FFMPEG_VERSION}" echo "Output Directory: ${PREFIX}" echo "CC=${CC}" echo "CXX=${CXX}" echo "AR=${AR}" echo "RANLIB=${RANLIB}" echo "STRIP=${STRIP}" echo "CFLAGS=${CFLAGS}" echo "LDFLAGS=${LDFLAGS}" echo "PREFIX=${PREFIX}" echo "==================================================================" # Common configure options COMMON_CONFIG="\ --prefix=${PREFIX} \ --enable-cross-compile \ --sysroot=${SYSROOT} \ --target-os=android \ ${TARGET_ARCH_OPTION} \ --disable-everything \ --disable-programs \ --enable-pic \ --enable-gpl \ --enable-nonfree \ --enable-decoder=aac,aac_latm,h264 \ --enable-demuxer=aac,asf,ffmetadata,h264,mp3 \ --enable-muxer=adts,h264,mp4,pcm_s16le \ --enable-parser=aac,aac_latm,h264 \ --enable-protocol=file \ --disable-zlib \ --disable-debug \ --cc=${CC} \ --cxx=${CXX} \ --ar=${AR} \ --strip=${STRIP} \ --ranlib=${RANLIB}" # Version-specific options case ${FFMPEG_VERSION} in "4.4.6") EXTRA_CONFIG="--disable-vulkan --disable-mediacodec" ;; "5.1.6"|"6.1.2"|"7.0.2") EXTRA_CONFIG="--enable-jni --enable-mediacodec" ;; esac # 使用环境变量中的依赖库目录 export PKG_CONFIG_PATH="${DEPS_OUTPUT_DIR}/lib/pkgconfig" case $1 in "2") echo "********support x264,fdk-aac encoder******" ./configure ${COMMON_CONFIG} \ --enable-libx264 \ --enable-libfdk-aac \ --enable-encoder=aac,libfdk_aac,libx264 \ --extra-cflags="-I${DEPS_OUTPUT_DIR}/include" \ --extra-ldflags="-L${DEPS_OUTPUT_DIR}/lib" \ ${EXTRA_CONFIG} || exit $? ;; "1") echo "*******support h264,aac encoder******" ./configure ${COMMON_CONFIG} \ --enable-libx264 \ --enable-encoder=aac,libx264 \ --extra-cflags="-I${DEPS_OUTPUT_DIR}/include" \ --extra-ldflags="-L${DEPS_OUTPUT_DIR}/lib" \ ${EXTRA_CONFIG} || exit $? ;; "0") echo "******no encoder support********" ./configure ${COMMON_CONFIG} \ --extra-cflags="-I${DEPS_OUTPUT_DIR}/include" \ --extra-ldflags="-L${DEPS_OUTPUT_DIR}/lib" \ ${EXTRA_CONFIG} || exit $? ;; *) echo "Invalid parameter: $1" exit 1 ;; esac # 编译前清理 rm -f compat/strtod.o compat/strtod.d compat/msvcrt/snprintf.o compat/msvcrt/snprintf.d make clean make -j$THREAD_NUM # 安装 make install