opencv: move the dependency check to a single place

Previously we were checking for opencv dep in 2 different places,
and the checks would vary in terms of how complex and exhaustive
they were.

Move the check into the libs module and reuse the result later on.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3016>
This commit is contained in:
Jordan Petridis 2020-07-15 07:04:47 +03:00 committed by GStreamer Marge Bot
parent bac8a74f04
commit 67475fa684
2 changed files with 57 additions and 90 deletions

View file

@ -34,87 +34,7 @@ gstopencv_sources = [
'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', 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' ],

View file

@ -1,3 +1,8 @@
if get_option('opencv').disabled()
gstopencv_dep = disabler()
subdir_done()
endif
opencv_sources = [
'gstopencvutils.cpp',
'gstopencvvideofilter.cpp',
@ -9,22 +14,66 @@ opencv_headers = [
'gstopencvvideofilter.h',
]
if get_option('opencv').disabled()
gstopencv_dep = disabler()
subdir_done()
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',
]
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 not opencv_found
opencv_dep = dependency('opencv4', version : ['>= 4.0.0'], required : false)
opencv_found = opencv_dep.found()
endif
opencv_dep = dependency('opencv', version : '>= 3.0.0', required : false)
if not opencv_dep.found()
opencv_dep = dependency('opencv4', version : '>= 4.0.0', required : false)
if opencv_found
foreach h : libopencv_headers
if not cxx.has_header(h, dependencies: opencv_dep)
message('Needed header "' + h + '" not found')
opencv_found = false
endif
endforeach
endif
if opencv_dep.found()
if opencv_found
opencv_prefix = opencv_dep.get_variable('prefix')
gstopencv_cargs += ['-DOPENCV_PREFIX="' + opencv_prefix + '"']
# 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_cargs += cxx.get_supported_arguments(['-Wno-missing-include-dirs', '-Wno-format-nonliteral'])
# 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
pkg_name = 'gstreamer-opencv-1.0'
gstopencv = library('gstopencv-' + api_version,
opencv_sources,
@ -48,6 +97,4 @@ if opencv_dep.found()
install_headers(opencv_headers, subdir : 'gstreamer-1.0/gst/opencv')
elif get_option('opencv').enabled()
error('OpenCV support enabled but required dependencies were not found.')
else
gstopencv_dep = disabler()
endif