FFMPEG Compile on Ubuntu

우분투에서 abi별로 FFMPEG 컴파일 하는 방법

FFMPEG은 4.0 버전

NDK 15버전

 

apt install make

apt install vim

apt install unzip

apt-get install yasm

 

mkdir /var/android/abi

mkdir /var/android/abi/ndk

wget http://ffmpeg.org/releases/ffmpeg-4.0.tar.xz

tar -xvf ffmpeg-4.0.tar.xz

wget https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip 

unzip android-ndk-r15c-linux-x86_64.zip

vim /var/android/abi/ffmpeg-4.0/configure

# SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
# LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
# SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
# SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'


SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS='$(SLIBNAME)'

 

vim /var/android/abi/ffmpeg-4.0/libavcodec/hevc_mvs.c

:%s/B0/bb/gc

vim /var/android/ndk/android-ndk-r15c/platforms/android-24/arch-arm/usr/include/asm/termbits.h

:%s/B0/bb/gc

/var/android/abi# vim /var/android/abi/ffmpeg-4.0/libavcodec/aaccoder.c

:%s/B0/bb/gc

 

vim /var/android/abi/build.sh

#!/bin/sh

MY_LIBS_NAME=ffmpeg-4.0
MY_DIR=ffmpeg-4.0

# cd ./${MY_DIR}

#The storage directory of the middleware generated during the compilation process, in order to distinguish the compilation directory, source code directory, install directory
MY_BUILD_DIR=/var/android/abi/binary

NDK_PATH=/var/android/ndk/android-ndk-r15c
BUILD_PLATFORM=linux-x86_64
TOOLCHAIN_VERSION=4.9
ANDROID_VERSION=24

ANDROID_ARMV5_CFLAGS="-march=armv5te"
ANDROID_ARMV7_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"  #-mfloat-abi=hard -mfpu=vfpv3-d16 #-mfloat-abi=hard -mfpu=vfp
ANDROID_ARMV8_CFLAGS="-march=armv8-a"
ANDROID_X86_CFLAGS="-march=i686 -mtune=intel -mssse3 -mfpmath=sse -m32"
ANDROID_X86_64_CFLAGS="-march=x86-64 -msse4.2 -mpopcnt -m64 -mtune=intel"



# params($1:arch,$2:arch_abi,$3:host,$4:cross_prefix,$5:cflags)
build_bin() {
        echo "-------------------star build $2-------------------------"
        ARCH=$1                 # arm arm64 x86 x86_64
        ANDROID_ARCH_ABI=$2     # armeabi armeabi-v7a x86 mips

        PREFIX=$(pwd)/dist/${MY_LIBS_NAME}/${ANDROID_ARCH_ABI}/

        HOST=$3
        SYSROOT=${NDK_PATH}/platforms/android-${ANDROID_VERSION}/arch-${ARCH}
        CFALGS=$5
        TOOLCHAIN=${NDK_PATH}/toolchains/${HOST}-${TOOLCHAIN_VERSION}/prebuilt/${BUILD_PLATFORM}
        CROSS_PREFIX=${TOOLCHAIN}/bin/$4-

        # build middleware
        BUILD_DIR=${MY_BUILD_DIR}/${ANDROID_ARCH_ABI}
        #/var/android/abi/binary/armeabi

        echo "pwd==$(pwd)"
        echo "ARCH==${ARCH}"
        echo "PREFIX==${PREFIX}"
        echo "HOST==${HOST}"
        echo "SYSROOT=${SYSROOT}"
        echo "CFALGS=$5"
        echo "CFALGS=${CFALGS}"
        echo "TOOLCHAIN==${TOOLCHAIN}"
        echo "CROSS_PREFIX=${CROSS_PREFIX}"
        echo "BUILD_DIR=${BUILD_DIR}"

                cd
        mkdir -p ${BUILD_DIR}   #Create the current arch_abi compilation directory, for example: binary/armeabi-v7a
                cd ${BUILD_DIR}         #Here into the current arch_abi level 2 compilation directory


        sh ../../${MY_DIR}/configure \
                --prefix=${PREFIX} \
                --target-os=linux \
                --arch=${ARCH} \
                --sysroot=$SYSROOT \
                --enable-cross-compile \
                --cross-prefix=${CROSS_PREFIX} \
                --extra-cflags="$CFALGS -Os -fPIC -DANDROID -Wfatal-errors -Wno-deprecated" \
                --extra-cxxflags="$CFALGS -Os -fPIC -DANDROID -D__thumb__ -Wfatal-errors -Wno-deprecated -fexceptions -frtti" \
                --extra-ldflags="-L${SYSROOT}/usr/lib" \
                --enable-shared \
                --disable-encoders \
                --disable-encoders \
                --enable-encoder=aac \
                --enable-decoder=aac_latm \
                --enable-decoder=h264 \
                --enable-decoder=mpeg4 \
                --enable-decoder=mjpeg \
                --enable-decoder=png \
                --disable-demuxers \
                --enable-demuxer=image2 \
                --enable-demuxer=h264 \
                --enable-demuxer=aac \
                --disable-parsers \
                --enable-parser=aac \
                --enable-parser=ac3 \
                --enable-parser=h264 \
                --enable-gpl \
                --disable-doc \
                --disable-ffmpeg \
                --disable-ffplay \
                --disable-ffprobe \
                --disable-symver \
                --disable-debug \
                --enable-small

        make clean
        make
        make install

                cd ../../
        echo "-------------------$2 build end-------------------------"
}

# build armeabi
build_bin arm armeabi arm-linux-androideabi arm-linux-androideabi "$ANDROID_ARMV5_CFLAGS"

#build armeabi-v7a
build_bin arm armeabi-v7a arm-linux-androideabi arm-linux-androideabi "$ANDROID_ARMV7_CFLAGS"

#build arm64-v8a
build_bin arm64 arm64-v8a aarch64-linux-android aarch64-linux-android "$ANDROID_ARMV8_CFLAGS"

#build x86
build_bin x86 x86 x86 i686-linux-android "$ANDROID_X86_CFLAGS"

#build x86_64
build_bin x86_64 x86_64 x86_64 x86_64-linux-android "$ANDROID_X86_64_CFLAGS"

chmod 755 build.sh

./build.sh