cmake_minimum_required(VERSION 3.10)

project(rtmp_publisher)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_compile_definitions(GLIB_DISABLE_DEPRECATION_WARNINGS)

# 输出到工程 bin/
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)

# ---------- GStreamer ----------
find_package(PkgConfig REQUIRED)
pkg_check_modules(GSTREAMER REQUIRED gstreamer-1.0)

# ---------- 源码 ----------
file(GLOB SRC_FILES src/*.cpp)

add_executable(camera_to_rtmp ${SRC_FILES})

# ---------- 头文件 ----------
target_include_directories(camera_to_rtmp PRIVATE
    ${CMAKE_SOURCE_DIR}/include
    ${CMAKE_SOURCE_DIR}/third_party/include
    ${CMAKE_SOURCE_DIR}/third_party/include/paho_mqtt
    ${GSTREAMER_INCLUDE_DIRS}
)

# ---------- 链接库 ----------
target_link_directories(camera_to_rtmp PRIVATE
    ${CMAKE_SOURCE_DIR}/third_party/lib
)

target_link_libraries(camera_to_rtmp
    ${GSTREAMER_LIBRARIES}
    pthread
    ${CMAKE_SOURCE_DIR}/third_party/lib/libpaho-mqttpp3.a
    ${CMAKE_SOURCE_DIR}/third_party/lib/libpaho-mqtt3a.a
    ${CMAKE_SOURCE_DIR}/third_party/lib/libpaho-mqtt3c.a
)

# ---------- RPATH ----------
set_target_properties(camera_to_rtmp PROPERTIES
    BUILD_RPATH "\$ORIGIN/lib"
    INSTALL_RPATH "\$ORIGIN/lib"
)

# ---------- 配置文件 ----------
add_custom_command(
    TARGET camera_to_rtmp POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:camera_to_rtmp>
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
        ${CMAKE_SOURCE_DIR}/config.json
        $<TARGET_FILE_DIR:camera_to_rtmp>/config.json.default
)