CMake语法简介（androidstudio中利用CMake开发NDK）: http://blog.csdn.net/u013718120/article/details/62883711
FFmpeg之一编译ForAndroid: http://blog.csdn.net/xiaoru5127/article/details/51524795

# For more information about using CMake with Android Studio, read the

# documentation: https://d.android.com/studio/projects/add-native-code.html

cmake_minimum_required(VERSION 3.4.)

include_directories(src/main/cpp/include)

add_library(avutil-lib STATIC IMPORTED)

set_target_properties(avutil-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libavutil.a)

add_library(avcodec-lib STATIC IMPORTED)

set_target_properties(avcodec-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libavcodec.a)

add_library(avformat-lib STATIC IMPORTED)

set_target_properties(avformat-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libavformat.a)

add_library(x264-lib STATIC IMPORTED)

set_target_properties(x264-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libx264.a)

add_library(swresample-lib STATIC IMPORTED)

set_target_properties(swresample-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libswresample.a)

add_library(swscale-lib STATIC IMPORTED)

set_target_properties(swscale-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libswscale.a)

add_library(mp3lame-lib STATIC IMPORTED)

set_target_properties(mp3lame-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libmp3lame.a)

add_library(yuv_static-lib STATIC IMPORTED)

set_target_properties(yuv_static-lib PROPERTIES IMPORTED_LOCATION

${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp/lib/libyuv_static.a)

find_library(log-lib log)

find_library(m-lib m)

find_library(z-lib z)

find_library(dl-lib dl)

find_library(stdc++-lib stdc++)

find_library(jnigraphics-lib jnigraphics)

add_library(net_camera SHARED src/main/cpp/net_camera.cpp)

target_link_libraries(net_camera avformat-lib avcodec-lib avutil-lib x264-lib mp3lame-lib

swscale-lib swresample-lib yuv_static-lib ${log-lib} ${m-lib} ${z-lib} ${dl-lib} ${stdc++-lib}

${jnigraphics-lib})