Opencv build error

,
1

Hello, I have been following a tutorial on how to install opencv from:

I have done everything exactly like the video and I reach up to building with cmake, the problem is that there are errors while building.
my system info is:

Windows 11
Cmake(using UI) 3.27.23
Opencv 4.8.0 windows exe
g++ (MinGW-W64 x86_64-ucrt-mcf-seh, built by Brecht Sanders) 13.2.0
python 3.10.7

C:\ opencv\opencv\build>mingw32-make
[ 0%] Built target opencv_dnn_plugins
[ 0%] Built target opencv_highgui_plugins
[ 2%] Built target jsimd
[ 4%] Built target libopenjp2
[ 4%] Built target opencv_videoio_plugins
[ 5%] Built target zlib
[ 11%] Built target opencv_core
[ 16%] Built target opencv_imgproc
[ 18%] Built target libjpeg-turbo
[ 21%] Built target libtiff
[ 27%] Built target libwebp
[ 28%] Built target libpng
[ 34%] Built target IlmImf
[ 36%] Built target opencv_imgcodecs
[ 36%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_obsensor/obsensor_uvc_stream_channel.cpp.obj
In file included from C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:41,
from C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_uvc_stream_channel.cpp:33:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:145:42: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
106 | _COM_SMARTPTR_TYPEDEF(T, __uuidof(T));
| ^
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:146:44: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:148:45: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:149:47: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:150:45: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:151:49: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:152:40: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of ‘class cv::obsensor::ComPtr’:
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:153:39: required from here
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument ‘cv::obsensor::ComPtr::__T_IID_getter’ from ‘const IID& (cv::obsensor::ComPtr::)()’ {aka ‘const GUID& (cv::obsensor::ComPtr::)()’} to ‘const IID& ()()’ {aka 'const GUID& ()()’}
C:\ opencv\opencv\sources\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:129:7: warning: base class ‘struct IMFSourceReaderCallback’ has accessible non-virtual destructor [-Wnon-virtual-dtor]
129 | class MSMFStreamChannel : public IUvcStreamChannel, public IMFSourceReaderCallback
| ^~~~~~~~~~~~~~~~~
mingw32-make[2]: *** [modules\videoio\CMakeFiles\opencv_videoio.dir\build.make:241: modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_obsensor/obsensor_uvc_stream_channel.cpp.obj] Error 1
mingw32-make[1]: *** [CMakeFiles\Makefile2:2598: modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
mingw32-make: *** [makefile:165: all] Error 2

2

well, not quite, or it’s wrong (i wont even watch it)

using mingw, you need to disable MSMF related code (no support for that in mingw): in cmake:

WITH_MSMF=OFF
WITH_OBSSENSOR=OFF

clean build folder (start from scratch w. cmake) and rerun

(i also think, you got the wrong mingw, it might lack support for posix threads / mutex, but idk this one…)

please also take a look, which libpython version is shipped with your mingw (maybe you can only link against python3.8)

3

Amazing! That fixed it, I’ve been running some test codes and it seems to work fine.
Thanks!

1 Like
4

hey, nice to hear !

still, since you’re using a relatively unknown compiler,
could you add the output of cv::getBuildInformation() (or the final cmake output) here, so we can see, what you’ve got now
(intrinsics, threads and whatnot) ? much appreciated !

5

Sure! I hope this is helpful:

General configuration for OpenCV 4.8.0 =====================================
Version control: unknown

Platform:
Timestamp: 2023-08-31T10:08:06Z
Host: Windows 10.0.22621 AMD64
CMake: 3.27.3
CMake generator: MinGW Makefiles
CMake build tool: C:/Mingw-w64/winlibs-x86_64-mcf-seh-gcc-13.2.0-llvm-16.0.6-mingw-w64ucrt-11.0.1-r2/mingw64/bin/mingw32-make.exe
Configuration: Release

CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (18 files): + SSSE3 SSE4_1
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (37 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: C:/Mingw-w64/winlibs-x86_64-mcf-seh-gcc-13.2.0-llvm-16.0.6-mingw-w64ucrt-11.0.1-r2/mingw64/bin/x86_64-w64-mingw32-g++.exe (ver 13.2.0)
C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: C:/Mingw-w64/winlibs-x86_64-mcf-seh-gcc-13.2.0-llvm-16.0.6-mingw-w64ucrt-11.0.1-r2/mingw64/bin/x86_64-w64-mingw32-gcc.exe
C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,–gc-sections
Linker flags (Debug): -Wl,–gc-sections
ccache: NO
Precompiled headers: NO
Extra dependencies: pthread
3rdparty dependencies:

OpenCV modules:
To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo stitching ts video videoio
Disabled: world
Disabled by dependency: -
Unavailable: java python2 python3
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO

Windows RT support: NO

GUI: WIN32UI
Win32 UI: YES
VTK support: NO

Media I/O:
ZLib: build (ver 1.2.13)
JPEG: build-libjpeg-turbo (ver 2.1.3-62)
SIMD Support Request: YES
SIMD Support: YES
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.5.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES

Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (58.134.100)
avformat: YES (58.76.100)
avutil: YES (56.70.100)
swscale: YES (5.9.100)
avresample: YES (4.0.0)
GStreamer: NO
DirectShow: YES

Parallel framework: pthreads

Trace: YES (built-in)

Other third-party libraries:
Lapack: NO
Eigen: NO
Custom HAL: NO
Protobuf: build (3.19.1)
Flatbuffers: builtin/3rdparty (23.5.9)

OpenCL: YES (NVD3D11)
Include path: C:/ opencv/opencv/sources/3rdparty/include/opencl/1.2
Link libraries: Dynamic load

Python (for build): C:/Users/urisa/AppData/Local/Programs/Python/Python310/python.exe

Java:
ant: NO
Java: NO
JNI: NO
Java wrappers: NO
Java tests: NO

Install to: C:/ opencv/opencv/build/install

The way I compile from cmd is:
g++ opencv.cpp -I"C:\ opencv\opencv\build\include" -L"C:\ opencv\opencv\build\lib" -llibopencv_calib3d480 -llibopencv_core480 -llibopencv_dnn480 -llibopencv_features2d480 -llibopencv_flann480 -llibopencv_gapi480 -llibopencv_highgui480 -llibopencv_imgcodecs480 -llibopencv_imgproc480 -llibopencv_ml480 -llibopencv_objdetect480 -llibopencv_photo480 -llibopencv_stitching480 -llibopencv_video480 -llibopencv_videoio480

I guess there is no need to link all the libraries unless I need them, but I thought it would be a nice way of debugging whether compiling as such would work or not. Below is an example of the code I’ve tested for now.


#include <opencv2/core.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/core/mat.hpp>
#include <opencv2/opencv.hpp>
#include <iostream>


using namespace cv;
int main()
{
    std::string image_path = "1152.jpg";
    Mat img = imread(image_path, IMREAD_COLOR);
    std::cout << getBuildInformation();
    imshow("Display window", img);
    int k = waitKey(0); // Wait for a keystroke in the window
    return 0;
}
1 Like