CMakeLists.txt --- 匯入介面庫(預編譯庫)

林西索發表於2024-05-04
編譯

以介面庫的方式匯入預編譯庫

cmake_minimum_required(VERSION 3.9)

project(test)

set(CMAKE_BUILD_TYPE Debug)

set(CMAKE_C_FLAGS "$ENV{CFLAGS} -O2 -Wall -pthread ")
set(CMAKE_CXX_FLAGS "$ENV{CFLAGS} -O2 -Wall -pthread -std=c++11 -std=gnu++11")

#設定module的查詢路徑
#list(APPEND CMAKE_MODULE_PATH "/your/module/path")
#找module，找不到報錯
#find_package(ffmpeg REQUIRED)

#######################################介面庫設定#######################################
#設定預編譯庫的路徑
set(FFMPEG_LIB_PATH ${PROJECT_SOURCE_DIR}/external/ffmpeg/prebuild/lib/${CMAKE_SYSTEM_PROCESSOR}/linux/lib64)
#新增需要的庫
set(FFMPEG_LIBS
"\
${FFMPEG_LIB_PATH}/libavfilter.so;\
${FFMPEG_LIB_PATH}/libavformat.so;\
${FFMPEG_LIB_PATH}/libavcodec.so;\
${FFMPEG_LIB_PATH}/libavutil.so;\
${FFMPEG_LIB_PATH}/libswresample.so;\
${FFMPEG_LIB_PATH}/libswscale.so;\
${FFMPEG_LIB_PATH}/libavdevice.so\
")

#x86_64平臺編譯的ffmpeg依賴libx264-dev libx265-dev庫
string(FIND "${CMAKE_SYSTEM_PROCESSOR}" "x86_64" NEED_X264)
if(NEED_X264 GREATER -1)
    string(APPEND FFMPEG_LIBS ";${FFMPEG_LIB_PATH}/libx264.so;${FFMPEG_LIB_PATH}/libx265.so")
endif()
#指定介面庫的名字
add_library(ffmpeg INTERFACE IMPORTED GLOBAL)
#設定介面庫指向哪些預編譯庫
set_target_properties(ffmpeg PROPERTIES
INTERFACE_LINK_LIBRARIES
"${FFMPEG_LIBS}"
)
#設定介面庫包含的標頭檔案
set_target_properties(ffmpeg PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES
"${PROJECT_SOURCE_DIR}/external/ffmpeg/prebuild/include"
)
#######################################介面庫設定#######################################

add_definitions(-fpermissive)

add_executable(haha main.cpp)

target_link_libraries(haha
                      ffmpeg)

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