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