Python opencv on jetpack 5.1.4

jetson1 · January 26, 2026, 10:59am

Hi, I want to reactivate my old Xavier NX to build a robot head. I want to use 2 pi cameras for the eyes.

Does the jetpack 5.1.4 or 5.1.5 support python opencv with gstreamer and cuda support ?

I have a version of the jetpack installed, but i don’t know why, but the installed python opencv version does not support gstreamer, and all new rebuilds failed so far.

I have no decided to start from a fresh jetpack version.

AastaLLL · January 27, 2026, 4:43am

Hi,

You can build it from the source.
Please find our script below:

github.com/AastaNV/JEP

script/install_opencv4.6.0_Jetpack5.sh

master

#!/bin/bash
#

version="4.6.0"
folder="workspace"

set -e

for (( ; ; ))
do
    echo "Do you want to remove the default OpenCV (yes/no)?"
    read rm_old

    if [ "$rm_old" = "yes" ]; then
        echo "** Remove other OpenCV first"
        sudo apt -y purge *libopencv*
	break
    elif [ "$rm_old" = "no" ]; then
	break
    fi

This file has been truncated. show original

Thanks.

jetson1 · January 27, 2026, 11:27am

Hi, thanks a lot, but i ran into the following error :

: Unable to locate package v4l2ucp

jetson1 · January 27, 2026, 4:19pm

I changed the line

sudo apt-get install -y libv4l-dev v4l-utils qv4l2 v4l2ucp

to

sudo apt-get install -y libv4l-dev v4l-utils qv4l2

but ended with the following erros

             from /home/marc/Development/Python/pypro/workspace/opencv-4.6.0/modules/python/src2/cv2.cpp:11:

/home/marc/Development/Python/pypro/workspace/opencv_contrib-4.6.0/modules/cudafeatures2d/include/opencv2/cudafeatures2d.hpp:121:26: warning: ‘virtual void cv::cuda::DescriptorMatcher::clear()’ can be marked override [-Wsuggest-override]
121 | CV_WRAP virtual void clear() = 0;
| ^~~~~
/home/marc/Development/Python/pypro/workspace/opencv_contrib-4.6.0/modules/cudafeatures2d/include/opencv2/cudafeatures2d.hpp:125:26: warning: ‘virtual bool cv::cuda::DescriptorMatcher::empty() const’ can be marked override [-Wsuggest-override]
125 | CV_WRAP virtual bool empty() const = 0;
| ^~~~~
In file included from /home/marc/Development/Python/pypro/workspace/opencv-4.6.0/release/modules/python_bindings_generator/pyopencv_generated_include.h:89,
from /home/marc/Development/Python/pypro/workspace/opencv-4.6.0/modules/python/src2/cv2.cpp:11:
/home/marc/Development/Python/pypro/workspace/opencv_contrib-4.6.0/modules/cudafeatures2d/include/opencv2/cudafeatures2d.hpp:121:26: warning: ‘virtual void cv::cuda::DescriptorMatcher::clear()’ can be marked override [-Wsuggest-override]
121 | CV_WRAP virtual void clear() = 0;
| ^~~~~
/home/marc/Development/Python/pypro/workspace/opencv_contrib-4.6.0/modules/cudafeatures2d/include/opencv2/cudafeatures2d.hpp:125:26: warning: ‘virtual bool cv::cuda::DescriptorMatcher::empty() const’ can be marked override [-Wsuggest-override]
125 | CV_WRAP virtual bool empty() const = 0;
| ^~~~~
c++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
make[2]: *** [modules/python2/CMakeFiles/opencv_python2.dir/build.make:63: modules/python2/CMakeFiles/opencv_python2.dir/__/src2/cv2.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:6810: modules/python2/CMakeFiles/opencv_python2.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs…
[100%] Linking CXX shared module ../../lib/python3/cv2.cpython-38-aarch64-linux-gnu.so
[100%] Built target opencv_python3
make: *** [Makefile:163: all] Error 2

Once the script terminated, do I have to do something with python ? where does the gstreamer support comes from ? from the compiled opencv library or from the python opencv module?

cristian.hidalgo · January 27, 2026, 9:55pm

Could you please share the output from:

python3 -c “import cv2; print(cv2.file)”

Regards,

Embedded Software Engineer
RidgeRun | https://www.ridgerun.com/

Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com/

AastaLLL · January 28, 2026, 7:37am

Hi,

This error is related to the out-of-memory.
Could you try to reduce the -j variable to a lower value? Ex. make -j4.

github.com/AastaNV/JEP

script/install_opencv4.6.0_Jetpack5.sh

master


      
          rm opencv-${version}.zip opencv_contrib-${version}.zip
          cd opencv-${version}/
          
          
          echo "------------------------------------"
          echo "** Build opencv "${version}" (3/4)"
          echo "------------------------------------"
          mkdir release
          cd release/
          cmake -D WITH_CUDA=ON -D WITH_CUDNN=ON -D CUDA_ARCH_BIN="7.2,8.7" -D CUDA_ARCH_PTX="" -D OPENCV_GENERATE_PKGCONFIG=ON -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-${version}/modules -D WITH_GSTREAMER=ON -D WITH_LIBV4L=ON -D BUILD_opencv_python3=ON -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_EXAMPLES=OFF -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
          make -j$(nproc)
          
          
          echo "------------------------------------"
          echo "** Install opencv "${version}" (4/4)"
          echo "------------------------------------"
          sudo make install
          echo 'export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH' >> ~/.bashrc
          echo 'export PYTHONPATH=/usr/local/lib/python3.8/site-packages/:$PYTHONPATH' >> ~/.bashrc
          source ~/.bashrc

Thanks.

jetson1 · January 28, 2026, 9:11am

hi, the command returns

/home/marc/.local/lib/python3.8/site-packages/cv2/init.py

jetson1 · January 29, 2026, 12:54pm

ok, with the option -j 1 i get a correct result

** Install opencv 4.6.0 successfully
** Bye :)

However, the python library has not changed, so opencv in python still using gsGSTreamer No

AastaLLL · February 2, 2026, 8:35am

Hi,

echo 'export PYTHONPATH=/usr/local/lib/python3.8/site-packages/:$PYTHONPATH' >> ~/.bashrc

Please double-check if you have loaded the Python OpenCV correctly.
Maybe you can also check this by checking the version information.

Thanks.

cristian.hidalgo · February 2, 2026, 4:18pm

Hello,

Check this wiki: Compiling OpenCV from Source | RidgeRun Developer Wiki

It shows how to compile OpenCV from source with Gstreamer support.

Regards,

Embedded Software Engineer
RidgeRun | https://www.ridgerun.com/

Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com/

system · March 11, 2026, 2:07am

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
OpenCV/Pythin doesn't support Gstreamer Jetson AGX Orin gstreamer	6	1992	June 18, 2024
OpenCV exception with GStreamer, MIPI camera and JetPack Jetson Xavier NX camera , opencv , gstreamer	6	1338	October 18, 2021
Problems with opencv2 Jetson Xavier NX camera , python	7	107	February 7, 2026
Cannot use opencv on Xavier NX Jetson Xavier NX opencv	23	4217	January 26, 2022
I am looking for a simple way to dowload opencv with gstreamer support Jetson Xavier NX	3	367	March 26, 2024
How to install openCV with Gstreamer capabilities? Jetson Nano	2	5586	October 15, 2021
Does OpenCV Have Gstreamer Support? Jetson AGX Xavier opencv , gstreamer	5	1187	October 18, 2021
Csi camera with python and cv2 not working jetpack 5.02 Jetson Xavier NX opencv , gstreamer , python	13	2736	November 23, 2022
How to turn ON the GStreamer of Open-cv in Jetson Xavier nx? Jetson Xavier NX gstreamer	3	855	October 18, 2021
Opencv doesnt support Gstreamer Jetson Nano camera , opencv , gstreamer	4	1225	November 2, 2022

Python opencv on jetpack 5.1.4

Related topics