mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-03-10 22:01:29 +00:00
e2e6daf362
If a plugin gets disabled due to a `disabler()` dependency, the plugin docs build itself will get disabled because `all_plugins_paths` will become a disabler. This was actually happening with opencv on systems that don't have opencv available, and could happen with libsoup too if the build files change in the future. Let's avoid wasting hours of debugging for people. A not-found dependency has the same effect. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8582>
113 lines
3.3 KiB
Meson
113 lines
3.3 KiB
Meson
opencv_dep = dependency('', required: false)
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gstopencv_dep = dependency('', required: false)
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opencv_opt = get_option('opencv')
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if opencv_opt.disabled()
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subdir_done()
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endif
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opencv_sources = files([
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'gstopencvutils.cpp',
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'gstopencvvideofilter.cpp',
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])
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opencv_headers = files([
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'opencv-prelude.h',
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'gstopencvutils.h',
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'gstopencvvideofilter.h',
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])
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libopencv_headers = [
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'opencv2/bgsegm.hpp',
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'opencv2/calib3d.hpp',
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'opencv2/core.hpp',
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'opencv2/imgcodecs.hpp',
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'opencv2/imgproc.hpp',
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'opencv2/objdetect.hpp',
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'opencv2/opencv.hpp',
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'opencv2/video.hpp',
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'opencv2/tracking.hpp',
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]
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gstopencv_cargs = []
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opencv_dep = dependency('opencv', version : ['>= 3.0.0', '< 3.5.0'], required : false)
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if not opencv_dep.found()
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opencv_dep = dependency('opencv4', version : ['>= 4.0.0'], required : opencv_opt)
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if not opencv_dep.found()
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subdir_done()
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endif
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endif
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opencv_found = true
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foreach h : libopencv_headers
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if not cxx.has_header(h, dependencies: opencv_dep)
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message('Needed header "' + h + '" not found')
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opencv_found = false
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endif
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endforeach
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if not opencv_found
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if opencv_opt.enabled()
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error('opencv enabled, but needed headers not found')
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endif
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subdir_done()
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endif
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opencv_prefix = opencv_dep.get_variable('prefix')
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gstopencv_cargs += ['-DOPENCV_PREFIX="' + opencv_prefix + '"']
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# opencv4 seems to ship with .pc file that references non-existent include dir
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# (/usr/include/opencv4/opencv instead of /usr/include/opencv4/opencv2)
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# clang 10 complains about the following header in opencv4
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# /usr/include/opencv4/opencv2/flann/logger.h:83:36: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
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gstopencv_cargs += cxx.get_supported_arguments(['-Wno-missing-include-dirs', '-Wno-format-nonliteral'])
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# Check the data dir used by opencv for its xml data files
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# Use prefix from pkg-config to be compatible with cross-compilation
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fsmod = import('fs')
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opencv_path_name = ''
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foreach d : ['opencv', 'OpenCV', 'opencv4']
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if fsmod.is_dir(opencv_prefix / 'share' / d)
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opencv_path_name = d
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break
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endif
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endforeach
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if opencv_path_name != ''
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gstopencv_cargs += [f'-DOPENCV_PATH_NAME="@d@"']
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else
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if opencv_opt.enabled()
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error('opencv enabled, but data directory not found')
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endif
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message('Unable to detect OpenCV data directory in ' + opencv_prefix)
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subdir_done()
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endif
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pkg_name = 'gstreamer-opencv-1.0'
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gstopencv = library('gstopencv-' + api_version,
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opencv_sources,
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c_args : gst_plugins_bad_args + ['-DBUILDING_GST_OPENCV'],
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cpp_args : gst_plugins_bad_args + gstopencv_cargs + ['-DBUILDING_GST_OPENCV', '-DG_LOG_DOMAIN="GStreamer-OpenCV"'],
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override_options : ['cpp_std=c++11'],
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include_directories : [configinc, libsinc],
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version : libversion,
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soversion : soversion,
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darwin_versions : osxversion,
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install : true,
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dependencies : [gstbase_dep, gstvideo_dep, opencv_dep],
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)
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doc_sources = []
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foreach s: opencv_sources + opencv_headers
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doc_sources += s.full_path()
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endforeach
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libs_c_sources += {
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'opencv': pathsep.join(doc_sources)
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}
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gst_libraries += [[pkg_name, {'lib': gstopencv}]]
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gstopencv_dep = declare_dependency(link_with: gstopencv,
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include_directories : [libsinc],
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dependencies : [gstvideo_dep, opencv_dep])
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meson.override_dependency(pkg_name, gstopencv_dep)
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install_headers(opencv_headers, subdir : 'gstreamer-1.0/gst/opencv')
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