ffmpeg 编译

ubuntu下交叉编译Android的so库

#!/bin/bash
#make clean
set -e
archbit=64

if [ $archbit -eq 64 ]; then
echo "build for 64bit"
ARCH=aarch64
CPU=armv8-a
API=21
PLATFORM=aarch64
ANDROID=android
CFLAGS=""
LDFLAGS=""

else
echo "build for 32bit"
ARCH=arm
CPU=armv7-a
API=16
PLATFORM=armv7a
ANDROID=androideabi
CFLAGS="-mfloat-abi=softfp -march=$CPU"
LDFLAGS="-Wl,--fix-cortex-a8"
fi

export NDK=/home/lijunjie/Android/Sdk/ndk/20.1.5948944
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin
export SYSROOT=$NDK/toolchains/llvm/prebuilt/linux-x86_64/sysroot
export CROSS_PREFIX=$TOOLCHAIN/$ARCH-linux-$ANDROID-
export CC=$TOOLCHAIN/$PLATFORM-linux-$ANDROID$API-clang
export CXX=$TOOLCHAIN/$PLATFORM-linux-$ANDROID$API-clang++
export PREFIX=../out/
#export PREFIX=../ffmpeg-android/$CPU

function build_android {
    ./configure \
    --prefix=$PREFIX \
    --cross-prefix=$CROSS_PREFIX \
    --target-os=android \
    --arch=$ARCH \
    --cpu=$CPU \
    --cc=$CC \
    --cxx=$CXX \
    --nm=$TOOLCHAIN/$ARCH-linux-$ANDROID-nm \
    --strip=$TOOLCHAIN/$ARCH-linux-$ANDROID-strip \
    --enable-cross-compile \
    --sysroot=$SYSROOT \
    --extra-cflags="$CFLAGS" \
    --extra-ldflags="$LDFLAGS" \
    --extra-ldexeflags=-pie \
    --enable-runtime-cpudetect \
    --disable-static \
    --enable-shared \
    --disable-ffprobe \
    --disable-ffplay \
    --disable-ffmpeg \
    --disable-debug \
    --disable-doc \
    --enable-avfilter \
    --enable-decoders \
    $ADDITIONAL_CONFIGURE_FLAG

    make
    make install
}
build_android

ubuntu下直接编译

# 下载ffmpeg
wget https://www.ffmpeg.org/releases/ffmpeg-6.0.1.tar.xz
xz -d ffmpeg-6.0.1.tar.xz
tar -xvf ffmpeg-6.0.1.tar

# 安装必要的编译库
sudo apt update
sudo apt install autoconf automake build-essential cmake git-core libass-dev libfreetype6-dev libsdl2-dev libtool libva-dev libvdpau-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev pkg-config texinfo wget zlib1g-dev libunistring-dev libaom-dev libx264-dev libx265-dev libvpx-dev libfdk-aac-dev libmp3lame-dev libopus-dev

# 下载汇编依赖库
wget https://www.nasm.us/pub/nasm/releasebuilds/2.15.05/nasm-2.15.05.tar.gz
tar xvzf nasm-2.15.05.tar.gz

cd nasm-2.15.05/
./configure
make
sudo make install


cd ../ffmpeg-6.0.1
./configure --enable-gpl --enable-nonfree --enable-libaom --enable-libx264 --enable-libx265 --enable-libvpx --enable-libfdk-aac --enable-libmp3lame --enable-libopus
make
sudo make install