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###############################################################################
# CMake file to find the Video4Linux2 files on the Linux platform. #
# (c) Ralf Lange, longsoft.de #
# Last update: 2014-12-28 #
# #
###############################################################################
#
# cmake macro to test if we use Video4Linux2
# V4L2_FOUND - system has the Video4Linux2 library
# V4L2_INCLUDE_DIR - the Video4Linux2 include directory
# V4L2_LIBRARIES - The libraries needed to use Video4Linux2
#
###############################################################################
MESSAGE("FindV4L2PkgConfig.cmake")
FIND_PACKAGE(PkgConfig REQUIRED)
PKG_CHECK_MODULES(PKG_V4L2 QUIET libv4l2)
IF(PKG_V4L2_FOUND)
MESSAGE(STATUS "FOUND: Video4Linux2 !")
ELSE(PKG_V4L2_FOUND)
MESSAGE(SEND_ERROR "Not found: Video4Linux2 !")
RETURN()
ENDIF(PKG_V4L2_FOUND)
FIND_PATH(
V4L2_INCLUDE_DIR
NAMES videodev2.h libv4l2.h libv4lconvert.h
HINTS ${PKG_V4L2_INCLUDEDIR} ${PKG_V4L2_INCLUDE_DIRS}
PATH_SUFFIXES v4l2 video4linux
)
FIND_LIBRARY(
V4L2_LIBRARY
NAMES v4l2 v4lconvert
HINTS ${PKG_V4L2_LIBDIR} ${PKG_V4L2_LIBRARY_DIRS}
)
SET(
V4L2_LIBRARIES
${V4L2_LIBRARY}
)
SET(
V4L2_INCLUDE_DIRS
${V4L2_INCLUDE_DIR}
)
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set V4L2_FOUND to true
# if all listed variables are true
find_package_handle_standard_args(
Libv4l2
DEFAULT_MSG
V4L2_LIBRARY
V4L2_INCLUDE_DIR
)
IF(PKG_V4L2_FOUND)
MESSAGE(STATUS "V4L2_LIBRARY: ${V4L2_LIBRARY}")
MESSAGE(STATUS "V4L2_INCLUDE_DIR: ${V4L2_INCLUDE_DIR}")
ENDIF(PKG_V4L2_FOUND)
MARK_AS_ADVANCED(
V4L2_LIBRARIES
V4L2_INCLUDE_DIRS
)
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