Android NDK 编译 ffmpeg + x264

原文连接：https://blog.csdn.net/yu540135101/article/details/105183294/
libx264源码下载地址
http://www.videolan.org/developers/x264.html
ffmpeg源码下载
http://ffmpeg.org/download.html
gcc编译Android的libx264
libx264使用gcc进行编译，NDK版本android-ndk-r14b

#!/bin/sh
ANDROID_NDK="/home/zhangyu/ffmpeg/android-ndk-r14b"
SDK_VERSION=21
#ARCH=arm64
ARCH=arm

if [ "$ARCH" = "arm64" ]
then
    PLATFORM_PREFIX="aarch64-linux-android-"
    HOST="aarch64"
    PLATFORM_VERSION=4.9
else
    PLATFORM_PREFIX="arm-linux-androideabi-"
    HOST="arm"
    PLATFORM_VERSION=4.9
fi

PREFIX=$(pwd)/android/${ARCH}
SYSROOT=$ANDROID_NDK/platforms/android-${SDK_VERSION}/arch-${ARCH}
TOOLCHAIN=$ANDROID_NDK/toolchains/${PLATFORM_PREFIX}${PLATFORM_VERSION}/prebuilt/linux-x86_64
CROSS_PREFIX=$TOOLCHAIN/bin/${PLATFORM_PREFIX}


./configure \
    --prefix=$PREFIX \
    --cross-prefix=$CROSS_PREFIX \
    --sysroot=$SYSROOT \
    --enable-static \
    --enable-pic \
    --disable-asm \
    --host=arm-linux \

clang编译Android的FFmpeg-4.2.2
clang编译ffmpeg-4.2.2，NDK版本android-ndk-r21
其中要指定libx264.a的路径和include

#!/bin/bash
export NDK=../android-ndk-r20b
# 当前系统
export HOST_TAG=linux-x86_64
# 支持的 Android CUP 架构
# export ARCH=aarch64
# export CPU=armv8-a
export ARCH=armv7a
export CPU=armv7-a
# 支持的 Android 最低系统版本
export MIN=21
export ANDROID_NDK_PLATFORM=android-21

export PREFIX=$(pwd)/android/$CPU

export MIN_PLATFORM=$NDK/platforms/android-$MIN
export SYSROOT=$NDK/sysroot
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG
export AR=$TOOLCHAIN/bin/arm-linux-androideabi-ar
export AS=$TOOLCHAIN/bin/arm-linux-androideabi-as
export CC=$TOOLCHAIN/bin/$ARCH-linux-androideabi$MIN-clang
echo "-----------------------------"
echo $CC
export CXX=$TOOLCHAIN/bin/$ARCH-linux-androideabi$MIN-clang++
export LD=$TOOLCHAIN/bin/arm-linux-androideabi-ld
export NM=$TOOLCHAIN/bin/arm-linux-androideabi-nm
export RANLIB=$TOOLCHAIN/bin/arm-linux-androideabi-ranlib
export STRIP=$TOOLCHAIN/bin/arm-linux-androideabi-strip

OPTIMIZE_CFLAGS="-I/work/fuweicong/android/x264/android/arm/include -DANDROID -I$NDK/sysroot/usr/include/arm-linux-androideabi/"
ADDI_LDFLAGS="-Wl,-rpath-link=$MIN_PLATFORM/arch-arm/usr/lib -L/work/fuweicong/android/x264/android/arm/lib -L$MIN_PLATFORM/arch-arm/usr/lib -nostdlib"


export PKG_CONFIG_PATH=/work/fuweicong/android/x264/android/arm/lib/pkgconfig:$PKG_CONFIG_PATH

./configure \
    --prefix=$PREFIX \
    --ar=$AR \
    --as=$AS \
    --cc=$CC \
    --cxx=$CXX \
    --nm=$NM \
    --ranlib=$RANLIB \
    --strip=$STRIP \
    --arch=$ARCH \
    --target-os=android \
    --enable-cross-compile \
    --disable-asm \
    --enable-gpl \
    --enable-libx264 \
    --enable-jni \
    --enable-neon \
    --enable-mediacodec \
    --enable-shared \
    --disable-static \
    --disable-ffprobe \
    --disable-ffplay \
    --disable-ffmpeg \
    --disable-debug \
    --disable-symver \
    --disable-stripping \
    --extra-cflags="-I/work/fuweicong/android/x264/android/arm/include" \
    --extra-ldflags="-L/work/fuweicong/android/x264/android/arm/lib" \

make -j8
make install