obs-studio/cmake/FindLibswresample.cmake

find_package(PkgConfig)

pkg_check_modules(PC_LIBSWRESAMPLE QUIET libswresample)
set(LIBSWRESAMPLE_STANDARD_DEFINITIONS ${PC_LIBSWRESAMPLE_CFLAGS_OTHER}
	CACHE STRING
	"Libswresample required CFLAGS")
set(LIBSWRESAMPLE_STATIC_DEFINITIONS ${PC_LIBSWRESAMPLE_STATIC_CFLAGS_OTHER}
	CACHE STRING
	"Libswresample static required CFLAGS")

find_path(LIBSWRESAMPLE_STANDARD_INCLUDE_DIR libswresample/swresample.h
	HINTS ${PC_LIBSWRESAMPLE_INCLUDEDIR}
	      ${PC_LIBSWRESAMPLE_INCLUDE_DIRS}
	PATH_SUFFIXES libswresample)

find_path(LIBSWRESAMPLE_STATIC_INCLUDE_DIR libswresample/swresample.h
	HINTS ${PC_LIBSWRESAMPLE_STATIC_INCLUDEDIR}
	      ${PC_LIBSWRESAMPLE_STATIC_INCLUDE_DIRS}
	PATH_SUFFIXES libswresample)

if(NOT LIBSWRESAMPLE_STANDARD_LIBRARIES)
	set(LIBSWRESAMPLE_STANDARD_LIBRARIES_ "")
	foreach(lib ${PC_LIBSWRESAMPLE_LIBRARIES})
		find_library(_lib_file NAMES ${lib}
			HINTS ${PC_LIBSWRESAMPLE_LIBDIR}
			      ${PC_LIBSWRESAMPLE_LIBRARY_DIRS})
		if(_lib_file)
			LIST(APPEND LIBSWRESAMPLE_STANDARD_LIBRARIES_
				${_lib_file})
		endif()
		unset(_lib_file CACHE)
	endforeach()
	set(LIBSWRESAMPLE_STANDARD_LIBRARIES
		${LIBSWRESAMPLE_STANDARD_LIBRARIES_}
		CACHE STRING
		"Libswresample (dynamic) libraries")
	unset(LIBSWRESAMPLE_STANDARD_LIBRARIES_)
endif()

if(NOT LIBSWRESAMPLE_STATIC_LIBRARIES)
	set(LIBSWRESAMPLE_STATIC_LIBRARIES_ "")
	set(lib_suffixes ${CMAKE_FIND_LIBRARY_SUFFIXES})
	set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX}
		${CMAKE_SHARED_LIBRARY_SUFFIX} ${CMAKE_SHARED_MODULE_SUFFIX})
	foreach(lib ${PC_LIBSWRESAMPLE_STATIC_LIBRARIES})
		find_library(_lib_file NAMES ${lib}
			HINTS ${PC_LIBSWRESAMPLE_LIBDIR}
			      ${PC_LIBSWRESAMPLE_LIBRARY_DIRS})
		if(_lib_file)
			list(APPEND LIBSWRESAMPLE_STATIC_LIBRARIES_
				${_lib_file})
		else()
			list(APPEND LIBSWRESAMPLE_STATIC_LIBRARIES_ ${lib})
		endif()
		unset(_lib_file CACHE)
	endforeach()
	set(CMAKE_FIND_LIBRARY_SUFFIXES ${lib_suffixes})
	set(LIBSWRESAMPLE_STATIC_LIBRARIES ${LIBSWRESAMPLE_STATIC_LIBRARIES_}
		CACHE STRING
		"Libswresample static libraries")
	unset(LIBSWRESAMPLE_STATIC_LIBRARIES_)
endif()



if(Libswresample_FIND_COMPONENTS AND
		Libswresample_FIND_COMPONENTS STREQUAL "static")
	set(LIBSWRESAMPLE_DEFINITION ${LIBSWRESAMPLE_STATIC_DEFINITIONS})
	set(LIBSWRESAMPLE_INCLUDE_DIR ${LIBSWRESAMPLE_STATIC_INCLUDE_DIR})
	set(LIBSWRESAMPLE_LIBRARY ${LIBSWRESAMPLE_STATIC_LIBRARIES})
else()
	set(LIBSWRESAMPLE_DEFINITION ${LIBSWRESAMPLE_STANDARD_DEFINITIONS})
	set(LIBSWRESAMPLE_INCLUDE_DIR ${LIBSWRESAMPLE_STANDARD_INCLUDE_DIR})
	set(LIBSWRESAMPLE_LIBRARY ${LIBSWRESAMPLE_STANDARD_LIBRARIES})
endif()

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args(Libswresample DEFAULT_MSG
	LIBSWRESAMPLE_INCLUDE_DIR LIBSWRESAMPLE_LIBRARY)

if(LIBSWRESAMPLE_FOUND)
	set(LIBSWRESAMPLE_DEFINITIONS ${LIBSWRESAMPLE_DEFINITION})
	set(LIBSWRESAMPLE_INCLUDE_DIRS ${LIBSWRESAMPLE_INCLUDE_DIR})
	set(LIBSWRESAMPLE_LIBRARIES ${LIBSWRESAMPLE_LIBRARY})
endif()

mark_as_advanced(
	LIBSWRESAMPLE_STANDARD_DEFINITIONS
	LIBSWRESAMPLE_STANDARD_INCLUDE_DIR
	LIBSWRESAMPLE_STANDARD_LIBRARIES
	
	LIBSWRESAMPLE_STATIC_DEFINITIONS
	LIBSWRESAMPLE_STATIC_INCLUDE_DIR
	LIBSWRESAMPLE_STATIC_LIBRARIES
	)