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obs-studio/cmake/finders/FindLibVLC.cmake
2024-08-14 12:07:47 -04:00

119 lines
3.3 KiB
CMake

#[=======================================================================[.rst
FindLibVLC
----------
FindModule for LibVLC and associated libraries
.. versionchanged:: 3.0
Updated FindModule to CMake standards
Imported Targets
^^^^^^^^^^^^^^^^
.. versionadded:: 2.0
This module defines the :prop_tgt:`IMPORTED` target ``VLC::LibVLC``.
Result Variables
^^^^^^^^^^^^^^^^
This module sets the following variables:
``LibVLC_FOUND``
True, if all required components and the core library were found.
``LibVLC_VERSION``
Detected version of found LibVLC libraries.
Cache variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``LibVLC_LIBRARY``
Path to the library component of LibVLC.
``LibVLC_INCLUDE_DIR``
Directory containing ``libvlc.h``.
#]=======================================================================]
include(FindPackageHandleStandardArgs)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
pkg_search_module(PC_LibVLC QUIET libvlc)
endif()
find_path(
LibVLC_INCLUDE_DIR
NAMES libvlc.h
HINTS ${PC_LibVLC_INCLUDE_DIRS}
PATHS /usr/include /usr/local/include
PATH_SUFFIXES vlc include/vlc include
DOC "LibVLC include directory"
)
find_library(
LibVLC_LIBRARY
NAMES vlc libvlc
HINTS ${PC_LibVLC_LIBRARY_DIRS}
PATHS /usr/lib /usr/local/lib
DOC "LibVLC location"
)
if(PC_LibVLC_VERSION VERSION_GREATER 0)
set(LibVLC_VERSION ${PC_LibVLC_VERSION})
elseif(EXISTS "${LibVLC_INCLUDE_DIR}/libvlc_version.h")
file(
STRINGS
"${LibVLC_INCLUDE_DIR}/libvlc_version.h"
_VERSION_STRING
REGEX "^.*LIBVLC_VERSION_(MAJOR|MINOR|PATCH)[ \t]+[0-9]+[ \t]*$"
)
string(REGEX REPLACE ".*LIBVLC_VERSION_MAJOR[ \t]+([0-9]+).*" "\\1" VERSION_MAJOR "${_VERSION_STRING}")
string(REGEX REPLACE ".*LIBVLC_VERSION_MINOR[ \t]+([0-9]+).*" "\\1" VERSION_MINOR "${_VERSION_STRING}")
string(REGEX REPLACE ".*LIBVLC_VERSION_REVISION[ \t]+([0-9]+).*" "\\1" VERSION_REVISION "${_VERSION_STRING}")
set(LibVLC_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION}")
else()
if(NOT LibVLC_FIND_QUIETLY)
message(AUTHOR_WARNING "Failed to find LibVLC version.")
endif()
set(LibVLC_VERSION 0.0.0)
endif()
find_package_handle_standard_args(
LibVLC
REQUIRED_VARS LibVLC_LIBRARY LibVLC_INCLUDE_DIR
VERSION_VAR LibVLC_VERSION
REASON_FAILURE_MESSAGE "Ensure that libvlc-dev (vlc on BSD) is installed on the system."
)
mark_as_advanced(LibVLC_INCLUDE_DIR LibVLC_LIBRARY)
if(LibVLC_FOUND)
if(NOT TARGET VLC::LibVLC)
if(IS_ABSOLUTE "${LibVLC_LIBRARY}")
add_library(VLC::LibVLC UNKNOWN IMPORTED)
set_property(TARGET VLC::LibVLC PROPERTY IMPORTED_LOCATION "${LibVLC_LIBRARY}")
else()
add_library(VLC::LibVLC INTERFACE IMPORTED)
set_property(TARGET VLC::LibVLC PROPERTY IMPORTED_LIBNAME "${LibVLC_LIBRARY}")
endif()
set_target_properties(
VLC::LibVLC
PROPERTIES
INTERFACE_COMPILE_OPTIONS "${PC_LibVLC_CFLAGS_OTHER}"
INTERFACE_INCLUDE_DIRECTORIES "${LibVLC_INCLUDE_DIR}"
VERSION ${LibVLC_VERSION}
)
endif()
endif()
include(FeatureSummary)
set_package_properties(
LibVLC
PROPERTIES
URL "https://www.videolan.org/vlc/libvlc.html"
DESCRIPTION
"libVLC is the core engine and the interface to the multimedia framework on which VLC media player is based."
)