Mac下面编译Android FFmpeg3.2.4

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需要搞直播，打算使用ffmpeg进行推流，于是在Mac下进行了编译FFMmpeg。

1、下载ffmpeg源码，我下载的是ffmpeg-3.2.4；

2、配置好build_android.sh编译安卓脚本，脚本如下，

cd /Users/xxxx/Documents/DevTool/ffmpeg-3.2.4NDK=/Users/xxxx/Documents/DevTool/AndroidSDK/android-sdk-macosx/ndk-bundleSYSROOT=$NDK/platforms/android-9/arch-arm/TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64function build_one{./configure \ --prefix=$PREFIX \ --enable-shared \ --disable-static \ --disable-doc \ --disable-ffmpeg \ --disable-ffplay \ --disable-ffprobe \ --disable-ffserver \ --disable-avdevice \ --disable-doc \ --disable-symver \ --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \ --target-os=linux \ --arch=arm \ --enable-cross-compile \ --sysroot=$SYSROOT \ --extra-cflags="-Os -fpic $ADDI_CFLAGS" \ --extra-ldflags="$ADDI_LDFLAGS" \ $ADDITIONAL_CONFIGURE_FLAG make clean make make install}CPU=armPREFIX=$(pwd)/android/$CPU ADDI_CFLAGS="-marm"build_one

我这里选择的CPU的架构是arm，有其他需要可自行添加；

3、为脚本赋予可执行权限；

chmod -R 775 build_android.sh

4、执行脚本，经过一番编译等待之后，我这边编译了几遍大约在十五分钟编译完成；
这里写图片描述

5、打开AS，我的测试版本是AS 2.3版本，所以使用的是CMakelist.txt来进行编译的，把刚才编译好的源码复制到项目的libs下面；
这里写图片描述

6、编译CMakelist.txt文件，完整的如下；

//For more information about using CMake with Android Studio, read the//documentation: https://d.android.com/studio/projects/add-native-code.html//Sets the minimum version of CMake required to build the native library.cmake_minimum_required(VERSION 3.4.1)find_library( # Sets the name of the path variable.              log-lib              # Specifies the name of the NDK library that              # you want CMake to locate.              log )set(distribution_DIR ${CMAKE_SOURCE_DIR}/../../../../libs)add_library( avutil-55             SHARED             IMPORTED )set_target_properties( avutil-55                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libavutil-55.so )add_library( swresample-2             SHARED             IMPORTED )set_target_properties( swresample-2                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libswresample-2.so )add_library( avcodec-57             SHARED             IMPORTED )set_target_properties( avcodec-57                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libavcodec-57.so )add_library( avfilter-6             SHARED             IMPORTED)set_target_properties( avfilter-6                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libavfilter-6.so )add_library( swscale-4             SHARED             IMPORTED)set_target_properties( swscale-4                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libswscale-4.so )add_library( avformat-57             SHARED             IMPORTED)set_target_properties( avformat-57                       PROPERTIES IMPORTED_LOCATION                       ../../../../libs/arm/libavformat-57.so )set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")add_library( native-lib             SHARED             src/main/cpp/native-lib.cpp )include_directories(libs/include)//target_include_directories(native-lib PRIVATE libs/include)target_link_libraries(native-lib                     ${avutil-55}                     ${swresample-2}                     ${avcodec-57}                     ${avfilter-6}                     ${swscale-4}                     ${avformat-57}                     ${log-lib} )

7、编译运行，成功，明天就可以开撸直播了，哈哈，附上下载链接。

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