156 lines
5.4 KiB
CMake
156 lines
5.4 KiB
CMake
#
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# This module defines the following variables:
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#
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# FFMPEG_FOUND - All required components and the core library were found
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# FFMPEG_INCLUDE_DIRS - Combined list of all components include dirs
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# FFMPEG_LIBRARIES - Combined list of all componenets libraries
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# FFMPEG_VERSION_STRING - Version of the first component requested
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#
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# For each requested component the following variables are defined:
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#
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# FFMPEG_<component>_FOUND - The component was found
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# FFMPEG_<component>_INCLUDE_DIRS - The components include dirs
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# FFMPEG_<component>_LIBRARIES - The components libraries
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# FFMPEG_<component>_VERSION_STRING - The components version string
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# FFMPEG_<component>_VERSION_MAJOR - The components major version
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# FFMPEG_<component>_VERSION_MINOR - The components minor version
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# FFMPEG_<component>_VERSION_MICRO - The components micro version
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#
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# <component> is the uppercase name of the component
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find_package(PkgConfig QUIET)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(_lib_suffix 64)
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else()
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set(_lib_suffix 32)
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endif()
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function(find_ffmpeg_library component header)
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string(TOUPPER "${component}" component_u)
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set(FFMPEG_${component_u}_FOUND FALSE PARENT_SCOPE)
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set(FFmpeg_${component}_FOUND FALSE PARENT_SCOPE)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(PC_FFMPEG_${component} QUIET lib${component})
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endif()
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find_path(FFMPEG_${component}_INCLUDE_DIR
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NAMES
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"lib${component}/${header}" "lib${component}/version.h"
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HINTS
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ENV FFmpegPath${_lib_suffix}
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ENV FFmpegPath
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ENV DepsPath${_lib_suffix}
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ENV DepsPath
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${FFmpegPath${_lib_suffix}}
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${FFmpegPath}
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${DepsPath${_lib_suffix}}
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${DepsPath}
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${PC_FFMPEG_${component}_INCLUDE_DIRS}
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PATHS
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/usr/include /usr/local/include /opt/local/include /sw/include
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PATH_SUFFIXES ffmpeg libav include)
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find_library(FFMPEG_${component}_LIBRARY
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NAMES
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"${component}" "lib${component}"
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HINTS
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ENV FFmpegPath${_lib_suffix}
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ENV FFmpegPath
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ENV DepsPath${_lib_suffix}
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ENV DepsPath
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${FFmpegPath${_lib_suffix}}
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${FFmpegPath}
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${DepsPath${_lib_suffix}}
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${DepsPath}
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${PC_FFMPEG_${component}_LIBRARY_DIRS}
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PATHS
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/usr/lib /usr/local/lib /opt/local/lib /sw/lib
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PATH_SUFFIXES
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lib${_lib_suffix} lib
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libs${_lib_suffix} libs
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bin${_lib_suffix} bin
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../lib${_lib_suffix} ../lib
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../libs${_lib_suffix} ../libs
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../bin${_lib_suffix} ../bin)
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set(FFMPEG_${component_u}_INCLUDE_DIRS ${FFMPEG_${component}_INCLUDE_DIR} PARENT_SCOPE)
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set(FFMPEG_${component_u}_LIBRARIES ${FFMPEG_${component}_LIBRARY} PARENT_SCOPE)
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mark_as_advanced(FFMPEG_${component}_INCLUDE_DIR FFMPEG_${component}_LIBRARY)
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if(FFMPEG_${component}_INCLUDE_DIR AND FFMPEG_${component}_LIBRARY)
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set(FFMPEG_${component_u}_FOUND TRUE PARENT_SCOPE)
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set(FFmpeg_${component}_FOUND TRUE PARENT_SCOPE)
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list(APPEND FFMPEG_INCLUDE_DIRS ${FFMPEG_${component}_INCLUDE_DIR})
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list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS)
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set(FFMPEG_INCLUDE_DIRS "${FFMPEG_INCLUDE_DIRS}" PARENT_SCOPE)
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list(APPEND FFMPEG_LIBRARIES ${FFMPEG_${component}_LIBRARY})
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list(REMOVE_DUPLICATES FFMPEG_LIBRARIES)
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set(FFMPEG_LIBRARIES "${FFMPEG_LIBRARIES}" PARENT_SCOPE)
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set(FFMPEG_${component_u}_VERSION_STRING "unknown" PARENT_SCOPE)
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set(_vfile "${FFMPEG_${component}_INCLUDE_DIR}/lib${component}/version.h")
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if(EXISTS "${_vfile}")
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file(STRINGS "${_vfile}" _version_parse REGEX "^.*VERSION_(MAJOR|MINOR|MICRO)[ \t]+[0-9]+[ \t]*$")
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string(REGEX REPLACE ".*VERSION_MAJOR[ \t]+([0-9]+).*" "\\1" _major "${_version_parse}")
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string(REGEX REPLACE ".*VERSION_MINOR[ \t]+([0-9]+).*" "\\1" _minor "${_version_parse}")
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string(REGEX REPLACE ".*VERSION_MICRO[ \t]+([0-9]+).*" "\\1" _micro "${_version_parse}")
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set(FFMPEG_${component_u}_VERSION_MAJOR "${_major}" PARENT_SCOPE)
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set(FFMPEG_${component_u}_VERSION_MINOR "${_minor}" PARENT_SCOPE)
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set(FFMPEG_${component_u}_VERSION_MICRO "${_micro}" PARENT_SCOPE)
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set(FFMPEG_${component_u}_VERSION_STRING "${_major}.${_minor}.${_micro}" PARENT_SCOPE)
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else()
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message(STATUS "Failed parsing FFmpeg ${component} version")
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endif()
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endif()
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endfunction()
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set(FFMPEG_INCLUDE_DIRS)
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set(FFMPEG_LIBRARIES)
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if(NOT FFmpeg_FIND_COMPONENTS)
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message(FATAL_ERROR "No FFmpeg components requested")
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endif()
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list(GET FFmpeg_FIND_COMPONENTS 0 _first_comp)
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string(TOUPPER "${_first_comp}" _first_comp)
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foreach(component ${FFmpeg_FIND_COMPONENTS})
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if(component STREQUAL "avcodec")
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find_ffmpeg_library("${component}" "avcodec.h")
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elseif(component STREQUAL "avdevice")
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find_ffmpeg_library("${component}" "avdevice.h")
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elseif(component STREQUAL "avfilter")
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find_ffmpeg_library("${component}" "avfilter.h")
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elseif(component STREQUAL "avformat")
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find_ffmpeg_library("${component}" "avformat.h")
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elseif(component STREQUAL "avresample")
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find_ffmpeg_library("${component}" "avresample.h")
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elseif(component STREQUAL "avutil")
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find_ffmpeg_library("${component}" "avutil.h")
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elseif(component STREQUAL "postproc")
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find_ffmpeg_library("${component}" "postprocess.h")
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elseif(component STREQUAL "swresample")
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find_ffmpeg_library("${component}" "swresample.h")
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elseif(component STREQUAL "swscale")
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find_ffmpeg_library("${component}" "swscale.h")
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else()
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message(FATAL_ERROR "Unknown FFmpeg component requested: ${component}")
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endif()
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endforeach()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(FFmpeg
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FOUND_VAR FFMPEG_FOUND
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REQUIRED_VARS FFMPEG_${_first_comp}_LIBRARIES FFMPEG_${_first_comp}_INCLUDE_DIRS
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VERSION_VAR FFMPEG_${_first_comp}_VERSION_STRING
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HANDLE_COMPONENTS)
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