mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-20 20:23:03 +02:00
196 lines
6.1 KiB
CMake
196 lines
6.1 KiB
CMake
|
|
||
|
|
#[==[
|
||
|
|
Provides the following variables:
|
||
|
|
|
||
|
|
* `ffmpeg_INCLUDE_DIRS`: Include directories necessary to use FFMPEG.
|
||
|
|
* `ffmpeg_LIBRARIES`: Libraries necessary to use FFMPEG. Note that this only
|
||
|
|
includes libraries for the components requested.
|
||
|
|
* `ffmpeg_VERSION`: The version of FFMPEG found.
|
||
|
|
|
||
|
|
The following components are supported:
|
||
|
|
|
||
|
|
* `avcodec`
|
||
|
|
* `avdevice`
|
||
|
|
* `avfilter`
|
||
|
|
* `avformat`
|
||
|
|
* `avresample`
|
||
|
|
* `avutil`
|
||
|
|
* `swresample`
|
||
|
|
* `swscale`
|
||
|
|
|
||
|
|
For each component, the following are provided:
|
||
|
|
|
||
|
|
* `ffmpeg_<component>_FOUND`: Libraries for the component.
|
||
|
|
* `ffmpeg_<component>_INCLUDE_DIRS`: Include directories for
|
||
|
|
the component.
|
||
|
|
* `ffmpeg_<component>_LIBRARIES`: Libraries for the component.
|
||
|
|
* `ffmpeg::<component>`: A target to use with `target_link_libraries`.
|
||
|
|
|
||
|
|
Note that only components requested with `COMPONENTS` or `OPTIONAL_COMPONENTS`
|
||
|
|
are guaranteed to set these variables or provide targets.
|
||
|
|
#]==]
|
||
|
|
|
||
|
|
function (_ffmpeg_find component headername)
|
||
|
|
find_path("ffmpeg_${component}_INCLUDE_DIR"
|
||
|
|
NAMES
|
||
|
|
"lib${component}/${headername}"
|
||
|
|
PATHS
|
||
|
|
"${ffmpeg_ROOT}/include"
|
||
|
|
~/Library/Frameworks
|
||
|
|
/Library/Frameworks
|
||
|
|
/usr/local/include
|
||
|
|
/usr/include
|
||
|
|
/sw/include # Fink
|
||
|
|
/opt/local/include # DarwinPorts
|
||
|
|
/opt/csw/include # Blastwave
|
||
|
|
/opt/include
|
||
|
|
/usr/freeware/include
|
||
|
|
PATH_SUFFIXES
|
||
|
|
ffmpeg
|
||
|
|
DOC "FFMPEG's ${component} include directory")
|
||
|
|
mark_as_advanced("ffmpeg_${component}_INCLUDE_DIR")
|
||
|
|
|
||
|
|
# On Windows, static FFMPEG is sometimes built as `lib<name>.a`.
|
||
|
|
if (WIN32)
|
||
|
|
list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES ".a" ".lib")
|
||
|
|
list(APPEND CMAKE_FIND_LIBRARY_PREFIXES "" "lib")
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
find_library("ffmpeg_${component}_LIBRARY"
|
||
|
|
NAMES
|
||
|
|
"${component}"
|
||
|
|
PATHS
|
||
|
|
"${ffmpeg_ROOT}/lib"
|
||
|
|
~/Library/Frameworks
|
||
|
|
/Library/Frameworks
|
||
|
|
/usr/local/lib
|
||
|
|
/usr/local/lib64
|
||
|
|
/usr/lib
|
||
|
|
/usr/lib64
|
||
|
|
/sw/lib
|
||
|
|
/opt/local/lib
|
||
|
|
/opt/csw/lib
|
||
|
|
/opt/lib
|
||
|
|
/usr/freeware/lib64
|
||
|
|
"${ffmpeg_ROOT}/bin"
|
||
|
|
DOC "FFMPEG's ${component} library")
|
||
|
|
mark_as_advanced("ffmpeg_${component}_LIBRARY")
|
||
|
|
|
||
|
|
if (ffmpeg_${component}_LIBRARY AND ffmpeg_${component}_INCLUDE_DIR)
|
||
|
|
set(_deps_found TRUE)
|
||
|
|
set(_deps_link)
|
||
|
|
foreach (_ffmpeg_dep IN LISTS ARGN)
|
||
|
|
if (TARGET "ffmpeg::${_ffmpeg_dep}")
|
||
|
|
list(APPEND _deps_link "ffmpeg::${_ffmpeg_dep}")
|
||
|
|
else ()
|
||
|
|
set(_deps_found FALSE)
|
||
|
|
endif ()
|
||
|
|
endforeach ()
|
||
|
|
if (_deps_found)
|
||
|
|
if (NOT TARGET "ffmpeg::${component}")
|
||
|
|
add_library("ffmpeg::${component}" UNKNOWN IMPORTED)
|
||
|
|
set_target_properties("ffmpeg::${component}" PROPERTIES
|
||
|
|
IMPORTED_LOCATION "${ffmpeg_${component}_LIBRARY}"
|
||
|
|
INTERFACE_INCLUDE_DIRECTORIES "${ffmpeg_${component}_INCLUDE_DIR}"
|
||
|
|
IMPORTED_LINK_INTERFACE_LIBRARIES "${_deps_link}")
|
||
|
|
endif ()
|
||
|
|
set("ffmpeg_${component}_FOUND" 1
|
||
|
|
PARENT_SCOPE)
|
||
|
|
|
||
|
|
set(version_header_path "${ffmpeg_${component}_INCLUDE_DIR}/lib${component}/version.h")
|
||
|
|
if (EXISTS "${version_header_path}")
|
||
|
|
string(TOUPPER "${component}" component_upper)
|
||
|
|
file(STRINGS "${version_header_path}" version
|
||
|
|
REGEX "#define *LIB${component_upper}_VERSION_(MAJOR|MINOR|MICRO) ")
|
||
|
|
string(REGEX REPLACE ".*_MAJOR *\([0-9]*\).*" "\\1" major "${version}")
|
||
|
|
string(REGEX REPLACE ".*_MINOR *\([0-9]*\).*" "\\1" minor "${version}")
|
||
|
|
string(REGEX REPLACE ".*_MICRO *\([0-9]*\).*" "\\1" micro "${version}")
|
||
|
|
if (NOT major STREQUAL "" AND
|
||
|
|
NOT minor STREQUAL "" AND
|
||
|
|
NOT micro STREQUAL "")
|
||
|
|
set("ffmpeg_${component}_VERSION" "${major}.${minor}.${micro}"
|
||
|
|
PARENT_SCOPE)
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
else ()
|
||
|
|
set("ffmpeg_${component}_FOUND" 0
|
||
|
|
PARENT_SCOPE)
|
||
|
|
set(what)
|
||
|
|
if (NOT ffmpeg_${component}_LIBRARY)
|
||
|
|
set(what "library")
|
||
|
|
endif ()
|
||
|
|
if (NOT ffmpeg_${component}_INCLUDE_DIR)
|
||
|
|
if (what)
|
||
|
|
string(APPEND what " or headers")
|
||
|
|
else ()
|
||
|
|
set(what "headers")
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
set("ffmpeg_${component}_NOT_FOUND_MESSAGE"
|
||
|
|
"Could not find the ${what} for ${component}."
|
||
|
|
PARENT_SCOPE)
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
endfunction ()
|
||
|
|
|
||
|
|
_ffmpeg_find(avutil avutil.h)
|
||
|
|
_ffmpeg_find(avresample avresample.h
|
||
|
|
avutil)
|
||
|
|
_ffmpeg_find(swresample swresample.h
|
||
|
|
avutil)
|
||
|
|
_ffmpeg_find(swscale swscale.h
|
||
|
|
avutil)
|
||
|
|
_ffmpeg_find(avcodec avcodec.h
|
||
|
|
avutil)
|
||
|
|
_ffmpeg_find(avformat avformat.h
|
||
|
|
avcodec avutil)
|
||
|
|
_ffmpeg_find(avfilter avfilter.h
|
||
|
|
avutil)
|
||
|
|
_ffmpeg_find(avdevice avdevice.h
|
||
|
|
avformat avutil)
|
||
|
|
|
||
|
|
if (TARGET ffmpeg::avutil)
|
||
|
|
set(_ffmpeg_version_header_path "${ffmpeg_avutil_INCLUDE_DIR}/libavutil/ffversion.h")
|
||
|
|
if (EXISTS "${_ffmpeg_version_header_path}")
|
||
|
|
file(STRINGS "${_ffmpeg_version_header_path}" _ffmpeg_version
|
||
|
|
REGEX "FFMPEG_VERSION")
|
||
|
|
string(REGEX REPLACE ".*\"n?\(.*\)\"" "\\1" ffmpeg_VERSION "${_ffmpeg_version}")
|
||
|
|
unset(_ffmpeg_version)
|
||
|
|
else ()
|
||
|
|
set(ffmpeg_VERSION ffmpeg_VERSION-NOTFOUND)
|
||
|
|
endif ()
|
||
|
|
unset(_ffmpeg_version_header_path)
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
set(ffmpeg_INCLUDE_DIRS)
|
||
|
|
set(ffmpeg_LIBRARIES)
|
||
|
|
set(_ffmpeg_required_vars)
|
||
|
|
foreach (_ffmpeg_component IN LISTS ffmpeg_FIND_COMPONENTS)
|
||
|
|
if (TARGET "ffmpeg::${_ffmpeg_component}")
|
||
|
|
set(ffmpeg_${_ffmpeg_component}_INCLUDE_DIRS
|
||
|
|
"${ffmpeg_${_ffmpeg_component}_INCLUDE_DIR}")
|
||
|
|
set(ffmpeg_${_ffmpeg_component}_LIBRARIES
|
||
|
|
"${ffmpeg_${_ffmpeg_component}_LIBRARY}")
|
||
|
|
list(APPEND ffmpeg_INCLUDE_DIRS
|
||
|
|
"${ffmpeg_${_ffmpeg_component}_INCLUDE_DIRS}")
|
||
|
|
list(APPEND ffmpeg_LIBRARIES
|
||
|
|
"${ffmpeg_${_ffmpeg_component}_LIBRARIES}")
|
||
|
|
if (FFMEG_FIND_REQUIRED_${_ffmpeg_component})
|
||
|
|
list(APPEND _ffmpeg_required_vars
|
||
|
|
"ffmpeg_${_ffmpeg_required_vars}_INCLUDE_DIRS"
|
||
|
|
"ffmpeg_${_ffmpeg_required_vars}_LIBRARIES")
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
endforeach ()
|
||
|
|
unset(_ffmpeg_component)
|
||
|
|
|
||
|
|
if (ffmpeg_INCLUDE_DIRS)
|
||
|
|
list(REMOVE_DUPLICATES ffmpeg_INCLUDE_DIRS)
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
include(FindPackageHandleStandardArgs)
|
||
|
|
find_package_handle_standard_args(ffmpeg
|
||
|
|
REQUIRED_VARS ffmpeg_INCLUDE_DIRS ffmpeg_LIBRARIES ${_ffmpeg_required_vars}
|
||
|
|
VERSION_VAR ffmpeg_VERSION
|
||
|
|
HANDLE_COMPONENTS)
|
||
|
|
unset(_ffmpeg_required_vars)
|