Android 使用libyuv-集成

将编译生成的动态库复制到app\src\main\jniLibs目录
include文件夹复制到app\src\main\cpp\include

修改build.gradle

    defaultConfig {
        ……………………
        externalNativeBuild {
            cmake {
                cppFlags ""
                abiFilters 'arm64-v8a'
            }
        }
    }

修改CMakeLists.txt

# 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 3.22.1)

set(CMAKE_ANDROID_NATIVE_LIB_DIRECTORIES  ${CMAKE_SOURCE_DIR}/../jniLibs)
# Declares and names the project.

project("libyuv")

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

add_library( # Sets the name of the library.
        libyuv

        # Sets the library as a shared library.
        SHARED

        # Provides a relative path to your source file(s).
        yuv-lib.cpp)

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

add_library(
        yuv_util # 表示的是模块名称，可以自己任意取，例如：deviceutil
        SHARED # 这个是固定的，基本上表示共享库
        IMPORTED # 这个也基本上是固定的，表示当前是导入的，跟我们 java 的 import 差不多含义
)
set_target_properties(
        yuv_util # 库的名称
        PROPERTIES IMPORTED_LOCATION # 表示当前库是导入的方式
        ${CMAKE_ANDROID_NATIVE_LIB_DIRECTORIES}/${ANDROID_ABI}/libyuv_library.so# so 动态库的具体路径
)
include_directories( ${CMAKE_SOURCE_DIR}/include)

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)

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( # Specifies the target library.
        libyuv

        yuv_util
        # Links the target library to the log library
        # included in the NDK.
        ${log-lib})

Android 使用libyuv-集成

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