Hello; I am having trouble to use OpenCV during “make” command. The code I try to run is gst-nvinfer-custome. The Makefile included this line for calling OpenCV “PKGS:= gstreamer-1.0 gstreamer-base-1.0 gstreamer-video-1.0 /usr/lib/x86_64-linux-gnu/pkgconfig/opencv4.pc” code line. It gave me an error of opencv4.pc file not found. I found a suggestion from mehematdeniz and modify the “Makerfile” but it looks like still not able to find OpenCV. Here is the Makefile (I don’t have access to “CMakeLists.txt” file): ################################################################################ # Copyright (c) 2017-2022, NVIDIA CORPORATION. All rights reserved. # # NVIDIA Corporation and its licensors retain all intellectual property # and proprietary rights in and to this software, related documentation # and any modifications thereto. Any use, reproduction, disclosure or # distribution of this software and related documentation without an express # license agreement from NVIDIA Corporation is strictly prohibited. ################################################################################# # CUDA_VER?= ifeq ($(CUDA_VER),) $(error "CUDA_VER is not set") endif OPENCV = 1 GPU = 1 CXX:= g++ SRCS:= gstnvinfer.cpp gstnvinfer_allocator.cpp gstnvinfer_property_parser.cpp \ gstnvinfer_meta_utils.cpp gstnvinfer_impl.cpp gstnvinfer_yaml_parser.cpp \ align_functions.cpp tensor_extractor.cpp INCS:= $(wildcard *.h) LIB:=libnvdsgst_infer.so NVDS_VERSION:=6.1 CFLAGS+= -fPIC -std=c++11 -DDS_VERSION=\"6.1.0\" \ -I /usr/local/cuda-$(CUDA_VER)/include \ -I /opt/nvidia/deepstream/deepstream-6.1/sources/includes \ -I /opt/nvidia/deepstream/deepstream-6.1/sources/gst-plugins/gst-nvdspreprocess/include \ -I /opt/nvidia/deepstream/deepstream-6.1/sources/libs/nvdsinfer -DNDEBUG -D_GLIBCXX_USE_CXX11_ABI=0 CFLAGS+=-I /usr/include/opencv4 GST_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/lib/gst-plugins/ LIB_INSTALL_DIR?=/opt/nvidia/deepstream/deepstream-$(NVDS_VERSION)/lib/ LIBS := -shared -Wl,-no-undefined \ -L/usr/local/cuda-$(CUDA_VER)/lib64/ -lcudart LIBS+= -L$(LIB_INSTALL_DIR) -lnvdsgst_helper -lnvdsgst_meta -lnvds_meta \ -lnvds_infer -lnvbufsurface -lnvbufsurftransform -ldl -lpthread -lyaml-cpp \ -lcuda -Wl,-rpath,$(LIB_INSTALL_DIR) OBJS:= $(SRCS:.cpp=.o) # PKGS:= gstreamer-1.0 gstreamer-base-1.0 gstreamer-video-1.0 /usr/lib/x86_64-linux-gnu/pkgconfig/opencv4.pc PKGS:= gstreamer-1.0 gstreamer-base-1.0 gstreamer-video-1.0 CFLAGS+=$(shell pkg-config --cflags $(PKGS)) LIBS+=$(shell pkg-config --libs $(PKGS)) # Error in OpenCV in Nivida AGX Orin # ref: https://forums.developer.nvidia.com/t/opencv-no-package-opencv-found/169616/2?u=cloudlakecho ifeq ($(OPENCV), 1) COMMON+= -DOPENCV CFLAGS+= -DOPENCV LDFLAGS+= `pkg-config --libs opencv4` -lstdc++ COMMON+= `pkg-config --cflags opencv4` endif ifeq ($(GPU), 1) COMMON+= -DGPU -I/usr/local/cuda/include/ -I/usr/local/cuda/targets/aarch64-linux/include/ CFLAGS+= -DGPU LDFLAGS+= -L/usr/lib/aarch64-linux-gnu -lcuda -lcudart -lcublas -lcurand endif # all: $(LIB) %.o: %.cpp $(INCS) Makefile $(CXX) -c -o $@ $(CFLAGS) $< $(LIB): $(OBJS) $(DEP) Makefile $(CXX) -o $@ $(OBJS) $(LIBS) install: $(LIB) cp -rv $(LIB) $(GST_INSTALL_DIR) clean: rm -rf $(OBJS) $(LIB) This is at the end of error log (log is too long, so I don’t want to show in here, but entire log - to read please use Chrome browser): /usr/bin/ld: align_functions.cpp:(.text._ZN2cv4Mat_IhEaSEONS_3MatE[_ZN2cv4Mat_IhEaSEONS_3MatE]+0xcc): undefined reference to `cv::Mat::operator=(cv::Mat&&)' /usr/bin/ld: align_functions.cpp:(.text._ZN2cv4Mat_IhEaSEONS_3MatE[_ZN2cv4Mat_IhEaSEONS_3MatE]+0xd4): undefined reference to `cv::Mat::~Mat()' /usr/bin/ld: align_functions.cpp:(.text._ZN2cv4Mat_IhEaSEONS_3MatE[_ZN2cv4Mat_IhEaSEONS_3MatE]+0x110): undefined reference to `cv::Mat::convertTo(cv::_OutputArray const&, int, double, double) const' /usr/bin/ld: align_functions.cpp:(.text._ZN2cv4Mat_IhEaSEONS_3MatE[_ZN2cv4Mat_IhEaSEONS_3MatE]+0x14c): undefined reference to `cv::Mat::~Mat()' /usr/bin/ld: align_functions.o: in function `cv::Mat_ ::release()': align_functions.cpp:(.text._ZN2cv4Mat_IhE7releaseEv[_ZN2cv4Mat_IhE7releaseEv]+0x10): undefined reference to `cv::Mat::release()' collect2: error: ld returned 1 exit status make: *** [Makefile:81: libnvdsgst_infer.so] Error 1 Any suggestion appreciated. Thank You. My runtime environment: Hardware: Nvidia Orin OS: Ubuntu 20.04 on AArch 64 processor (not x86_64 or Amd)

Hi, [image] cloudlakecho: I have one question in your method. Your original post had “# Remove opencv in PKGS”. Do you mean I have to omit all OpenCV related package in PKGS in my “Makefile”? This is not required now. In old releases, the release is with OpenCV 3.3.1 and in Makefile, it is PKGS:= gstreamer-1.0 gstreamer-base-1.0 gstreamer-video-1.0 opencv Now the release is with OpenCV 4.1.1 and it is revised to: PKGS:= gstreamer-1.0 gstreamer-base-1.0 gstreamer-video-1.0 opencv4

Hi there @cloudlakecho, I think your post might get better visibility in the Orin category (where I moved it now). But since it is about proper setup of Makefiles for DeepStream, you might also want to check in the category where you found the suggestion you reference above, which is the DeepStream SDK forums. Thanks!

@MarkusHoHo Thanks for suggestion and moved my question to Orin category. I will wait for any tip. At the same time, I don’t think my problem depending on specific hardware Orin but more to architecture, AArch 64. Regarding the DeepStream SDK forum, I already looked around the similar problem. The existing solution seems promising but it still not work for my case. I will search again.

@DaneLLL Thanks for suggestion. I will add your method and try again (your PKGS and CFLAGS sections are already in mine): LIBS+=-L/usr/local/lib -lopencv_core -lopencv_highgui -lopencv_imgproc -lopencv_videoio -lopencv_cudafilters I have one question in your method. Your original post had “# Remove opencv in PKGS”. Do you mean I have to omit all OpenCV related package in PKGS in my “Makefile”?

@DaneLLL Thanks for the details. I will try again “make” command with other modficiation.

Couldn't Add OpenCV during "make" Command (Orin)

Robotics & Edge Computing Jetson Systems Jetson AGX Orin

DaneLLL March 10, 2023, 2:37am 5

Hi,
Please check if this helps:
How to create opencv gpumat from nvstream? - #18 by DaneLLL

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Couldn't Add OpenCV during "make" Command (Orin)

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