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Clement Champetier
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CMake: add cmake directory to have custom utilities
* Custom utilities are: * AvTranscoderMacros.cmake: macros, included in all cmake files. * FindFFmpeg.cmake: to get FFmpeg package (by specify a list of components, check the FFmpeg version, get FFmpeg from command line if there are parameters, etc...).
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10 files changed

+167
-11
lines changed

10 files changed

+167
-11
lines changed

‎app/cpp/avInfo/CMakeLists.txt

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### cpp/avInfo
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH})
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add_executable(avinfo avInfo.cpp)
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target_link_libraries(avinfo avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avinfo DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/avinfo.man DESTINATION "share/man/man1/")

‎app/cpp/avMeta/CMakeLists.txt

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### cpp/avMeta
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH} ${FFMPEG_INCLUDE_DIR})
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add_executable(avmeta avMeta.cpp)
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target_link_libraries(avmeta avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avmeta DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/avmeta.man DESTINATION "share/man/man1/")

‎app/cpp/avTranscoder/CMakeLists.txt

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### cpp/avTranscoder
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH} ${FFMPEG_INCLUDE_DIR})
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add_executable(avtranscoder avTranscoder.cpp)
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target_link_libraries(avtranscoder avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avtranscoder DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/av++.man DESTINATION "share/man/man1/")

‎app/cpp/avplay/CMakeLists.txt

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### cpp/avplay
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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find_package(OpenGL REQUIRED)
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find_package(GLUT REQUIRED)
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@@ -10,5 +15,6 @@ file(GLOB AVPLAY_SRC_FILES "*.cpp" "*.hpp")
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add_executable(avplay ${AVPLAY_SRC_FILES})
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target_link_libraries(avplay avtranscoder-shared ${OPENGL_LIBRARIES} ${GLUT_LIBRARY})
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avplay DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/avplayer.man DESTINATION "share/man/man1/")

‎app/cpp/genericProcessor/CMakeLists.txt

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### cpp/avProcessor
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH} ${FFMPEG_INCLUDE_DIR})
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add_executable(avprocessor genericProcessor.cpp)
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target_link_libraries(avprocessor avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avprocessor DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/avprocessor.man DESTINATION "share/man/man1/")

‎app/cpp/optionChecker/CMakeLists.txt

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### cpp/avOptionChecker
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH} ${FFMPEG_INCLUDE_DIR})
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# Add C++11 flag
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set(CMAKE_CXX_FLAGS "-std=c++0x")
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add_executable(avoptionchecker optionChecker.cpp)
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target_link_libraries(avoptionchecker avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avoptionchecker DESTINATION "bin/")

‎app/cpp/presetChecker/CMakeLists.txt

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### cpp/avPresetChecker
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
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include_directories(${AVTRANSCODER_SRC_PATH} ${FFMPEG_INCLUDE_DIR})
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# Add C++11 flag
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set(CMAKE_CXX_FLAGS "-std=c++0x")
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add_executable(avpresetchecker presetChecker.cpp)
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target_link_libraries(avpresetchecker avtranscoder-shared)
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# Install app
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/avpresetchecker DESTINATION "bin/")
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install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/avprofiles.man DESTINATION "share/man/man1/")

‎cmake/AvTranscoderMacros.cmake

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# Get useful variables
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set(AVTRANSCODER_APP_PATH "${PROJECT_SOURCE_DIR}/app")
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set(AVTRANSCODER_SRC_PATH "${PROJECT_SOURCE_DIR}/src")
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file(GLOB_RECURSE AVTRANSCODER_SRC_FILES "AvTranscoder/*.cpp" "AvTranscoder/*.hpp")

‎cmake/FindFFmpeg.cmake

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# - Find FFmpeg library
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# Find the native FFmpeg includes and library.
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#
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# This module defines:
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# FFMPEG_FOUND
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# FFMPEG_INCLUDE_DIR - The FFmpeg include directory.
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# FFMPEG_LIBRARIES - The FFmpeg libraries.
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#
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# For each component:
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# ${COMPONENT}_FOUND
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# ${COMPONENT}_INCLUDE_DIR
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# ${COMPONENT}_LIBRARIES
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# ${COMPONENT}_DEFINITIONS
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# ${COMPONENT}_VERSION
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#
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# If any component is specified, default components are avcodec avformat avutil.
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#
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### Macro: check_ffmpeg_version
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#
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# Check FFmpeg version.
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# @todo: clean how to get current FFmpeg version.
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#
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macro(check_ffmpeg_version)
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exec_program("ffmpeg -version 2>&1 | grep 'ffmpeg version' | sed -e 's/ffmpeg\ version\ //'"
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OUTPUT_VARIABLE FFmpeg_CURRENT_VERSION)
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if(${FFmpeg_CURRENT_VERSION} LESS ${FFmpeg_FIND_VERSION})
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message(SEND_ERROR "Your FFmpeg version is too old (${FFmpeg_CURRENT_VERSION} < ${FFmpeg_FIND_VERSION}).")
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endif()
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endmacro()
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### Macro: find_component
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#
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# Check the given component by invoking pkgconfig and
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# then looking up the libraries and include directories.
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# @todo: WIN and MAC OSX.
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#
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macro(find_component COMPONENT PKGCONFIG PKGOPTION LIBRARY HEADER)
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if(NOT WIN32)
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# use pkg-config to get the directories and then use these values
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# in the FIND_PATH() and FIND_LIBRARY() calls
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find_package(PkgConfig)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(PC_${COMPONENT} ${PKGCONFIG} ${PKGOPTION})
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endif()
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endif()
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find_path(${COMPONENT}_INCLUDE_DIR
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${HEADER}
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PATH ${PC_LIB${COMPONENT}_INCLUDEDIR} ${PC_LIB${COMPONENT}_INCLUDE_DIR}
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PATH_SUFFIXES ffmpeg libav
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)
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find_library(${COMPONENT}_LIBRARIES
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NAMES ${LIBRARY}
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PATH ${PC_LIB${COMPONENT}_LIBDIR} ${PC_LIB${COMPONENT}_LIBRARY_DIRS}
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)
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set(${COMPONENT}_DEFINITIONS ${PC_${COMPONENT}_CFLAGS_OTHER} CACHE STRING "The ${COMPONENT} CFLAGS.")
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set(${COMPONENT}_VERSION ${PC_${COMPONENT}_VERSION} CACHE STRING "The ${COMPONENT} version number.")
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# Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIR is present.
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if(${COMPONENT}_LIBRARIES AND ${COMPONENT}_INCLUDE_DIR)
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set(${COMPONENT}_FOUND TRUE)
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else()
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set(${COMPONENT}_FOUND FALSE)
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endif()
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mark_as_advanced(
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${COMPONENT}_INCLUDE_DIR
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${COMPONENT}_LIBRARIES
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${COMPONENT}_DEFINITIONS
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${COMPONENT}_VERSION
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)
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endmacro()
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# Get FFmpeg from custom install
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if(FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)
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set(FFMPEG_FOUND TRUE)
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# Get FFmpeg from system install
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else()
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# Check FFmpeg version
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if(DEFINED FFmpeg_FIND_VERSION)
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check_ffmpeg_version()
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endif()
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if(NOT FFmpeg_FIND_COMPONENTS)
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set(FFmpeg_FIND_COMPONENTS avcodec avformat avutil)
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endif()
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# Check components and add their stuff to the FFMPEG_* vars.
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foreach(COMPONENT ${FFmpeg_FIND_COMPONENTS})
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# Get component name is lower cases.
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string(TOLOWER ${COMPONENT} LOWERCOMPONENT)
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find_component(${COMPONENT} lib${LOWERCOMPONENT} REQUIRED ${LOWERCOMPONENT} lib${LOWERCOMPONENT}/${LOWERCOMPONENT}.h)
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# If the component is found.
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if(${COMPONENT}_FOUND)
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message(STATUS "Required component ${COMPONENT} present.")
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set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${COMPONENT}_LIBRARIES})
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set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${COMPONENT}_DEFINITIONS})
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list(APPEND FFMPEG_INCLUDE_DIR ${${COMPONENT}_INCLUDE_DIR})
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else()
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message(SEND_ERROR "Required component ${COMPONENT} missing.")
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endif()
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endforeach()
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# Build the include path with duplicates removed.
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if(FFMPEG_INCLUDE_DIR)
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list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIR)
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endif()
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endif()

‎src/CMakeLists.txt

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# Load project cmake
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Get useful variables
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set(AVTRANSCODER_APP_PATH "${PROJECT_SOURCE_DIR}/app" PARENT_SCOPE)
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set(AVTRANSCODER_SRC_PATH "${PROJECT_SOURCE_DIR}/src" PARENT_SCOPE)
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file(GLOB_RECURSE AVTRANSCODER_SRC_FILES "AvTranscoder/*.cpp" "AvTranscoder/*.hpp")
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##find_package(FFmpeg)
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find_package(FFmpeg
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COMPONENTS REQUIRED avcodec avformat avutil swscale swresample)
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# Get FFMPEG from parameters
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set(FFMPEG_INCLUDE_DIR "/path/to/ffmpeg/include/" CACHE STRING "")
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set(FFMPEG_LIBRARY_DIR "/path/to/ffmpeg/lib/" CACHE STRING "")
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file(GLOB_RECURSE FFMPEG_LIBS "${FFMPEG_LIBRARY_DIR}/*.so")
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# get FFmpeg / libav libraries from path
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file(GLOB FFMPEG_LIBRARIES "${FFMPEG_LIBRARIES}/*.so")
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# Check if FFmpeg or libav dependency
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if(EXISTS "${FFMPEG_INCLUDE_DIR}/libavresample/avresample.h")
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add_library(avtranscoder-static STATIC ${AVTRANSCODER_SRC_FILES})
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set_target_properties(avtranscoder-static PROPERTIES LINKER_LANGUAGE CXX)
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set_target_properties(avtranscoder-static PROPERTIES OUTPUT_NAME avtranscoder)
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target_link_libraries(avtranscoder-static ${FFMPEG_LIBS})
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target_link_libraries(avtranscoder-static ${FFMPEG_LIBRARIES})
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# Create 'avtranscoder' shared lib
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add_library(avtranscoder-shared SHARED ${AVTRANSCODER_SRC_FILES})
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set_target_properties(avtranscoder-shared PROPERTIES LINKER_LANGUAGE CXX)
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set_target_properties(avtranscoder-shared PROPERTIES OUTPUT_NAME avtranscoder)
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set_target_properties(avtranscoder-shared PROPERTIES SOVERSION ${AVTRANSCODER_VERSION})
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target_link_libraries(avtranscoder-shared ${FFMPEG_LIBS})
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target_link_libraries(avtranscoder-shared ${FFMPEG_LIBRARIES})
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### Install AvTranscoder libs and include
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install(

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