gstreamer/subprojects/gst-plugins-bad/ext/opencv/meson.build
Jan Alexander Steffens (heftig) fae27c87de opencv: Allow building against 4.6.x
Replace the broken version checks with one modeled after
`GLIB_CHECK_VERSION`.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2558>
2022-06-06 00:45:37 +01:00

131 lines
3.9 KiB
Meson

if get_option('opencv').disabled()
opencv_dep = disabler()
subdir_done()
endif
gstopencv_sources = [
'gstcvdilate.cpp',
'gstcvdilateerode.cpp',
'gstcvequalizehist.cpp',
'gstcverode.cpp',
'gstcvlaplace.cpp',
'gstcvsmooth.cpp',
'gstcvsobel.cpp',
'gstdisparity.cpp',
'gstedgedetect.cpp',
'gstfaceblur.cpp',
'gstfacedetect.cpp',
'gstgrabcut.cpp',
'gsthanddetect.cpp',
'gstmotioncells.cpp',
'gstopencv.cpp',
'gstretinex.cpp',
'gstsegmentation.cpp',
'gstskindetect.cpp',
'gsttemplatematch.cpp',
'gsttextoverlay.cpp',
'MotionCells.cpp',
'motioncells_wrapper.cpp',
'gstdewarp.cpp',
'camerautils.cpp',
'cameraevent.cpp',
'gstcameracalibrate.cpp',
'gstcameraundistort.cpp',
'gstcvtracker.cpp'
]
libopencv_headers = [
'opencv2/bgsegm.hpp',
'opencv2/calib3d.hpp',
'opencv2/core.hpp',
'opencv2/imgproc.hpp',
'opencv2/objdetect.hpp',
'opencv2/opencv.hpp',
'opencv2/video.hpp',
'opencv2/tracking.hpp',
]
libopencv4_headers = [
'opencv4/opencv2/bgsegm.hpp',
'opencv4/opencv2/calib3d.hpp',
'opencv4/opencv2/core.hpp',
'opencv4/opencv2/imgproc.hpp',
'opencv4/opencv2/objdetect.hpp',
'opencv4/opencv2/opencv.hpp',
'opencv4/opencv2/video.hpp',
'opencv4/opencv2/tracking.hpp',
]
gstopencv_cargs = ['-DGST_HAAR_CASCADES_DIR="@0@"']
opencv_dep = dependency('opencv', version : ['>= 3.0.0', '< 3.5.0'], required : false)
opencv_found = opencv_dep.found()
if opencv_found
foreach h : libopencv_headers
if not cxx.has_header(h)
message('Needed header "' + h + '" not found')
opencv_found = false
endif
endforeach
endif
if not opencv_found
opencv_dep = dependency('opencv4', version : ['>= 4.0.0', '< 4.7.0'], required : false)
opencv_found = opencv_dep.found()
if opencv_found
foreach h : libopencv4_headers
if not cxx.has_header(h)
message('Needed header "' + h + '" not found')
opencv_found = false
endif
endforeach
endif
endif
if opencv_found
opencv_prefix = opencv_dep.get_variable('prefix')
gstopencv_cargs += ['-DOPENCV_PREFIX="' + opencv_prefix + '"']
# Check the data dir used by opencv for its xml data files
# Use prefix from pkg-config to be compatible with cross-compilation
r = run_command('test', '-d', opencv_prefix + '/share/opencv', check: false)
if r.returncode() == 0
gstopencv_cargs += '-DOPENCV_PATH_NAME="opencv"'
else
r = run_command('test', '-d', opencv_prefix + '/share/OpenCV', check: false)
if r.returncode() == 0
gstopencv_cargs += '-DOPENCV_PATH_NAME="OpenCV"'
else
r = run_command('test', '-d', opencv_prefix + '/share/opencv4', check: false)
if r.returncode() == 0
gstopencv_cargs += '-DOPENCV_PATH_NAME="opencv4"'
else
message('Unable to detect OpenCV data directory')
opencv_found = false
endif
endif
endif
endif
if opencv_found
# opencv4 seems to ship with .pc file that references non-existent include dir
# (/usr/include/opencv4/opencv instead of /usr/include/opencv4/opencv2)
# clang 10 complains about the following header in opencv4
# /usr/include/opencv4/opencv2/flann/logger.h:83:36: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
gstopencv_cargs += cxx.get_supported_arguments(['-Wno-missing-include-dirs', '-Wno-format-nonliteral'])
gstopencv = library('gstopencv',
gstopencv_sources,
cpp_args : gst_plugins_bad_args + gstopencv_cargs + [ '-DGST_USE_UNSTABLE_API' ],
link_args : [noseh_link_args, '-lopencv_tracking'],
include_directories : [configinc, libsinc],
dependencies : [gstbase_dep, gstvideo_dep, opencv_dep, gstopencv_dep],
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstopencv, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstopencv]
elif get_option('opencv').enabled()
error('OpenCV support enabled but required dependencies were not found.')
endif