GStreamer Issue with OpenCV in Virtual Environment on Jetson Orin Nano (JetPack 6.1)

Python
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Hi everyone,

I’m working on a Jetson Orin Nano with JetPack 6.1 and Python 3, and I’ve encountered an issue with OpenCV and GStreamer. My goal is to use OpenCV (cv2) to process video from a CSI2 camera using GStreamer, but I’m facing some challenges:

1. Problem Context:

  • When I run GStreamer pipelines directly in the terminal (even with sudo), they work perfectly.
  • However, inside my Python3 virtual environment (where OpenCV is installed via pip), GStreamer is not recognized by OpenCV.
  • Attempting to use a GStreamer pipeline with cv2.VideoCapture fails. It seems like my OpenCV installation does not have GStreamer support enabled.
  1. Specific Questions:
  • Do I need to recompile OpenCV with GStreamer support, even though GStreamer works fine outside the virtual environment?
  • Is it normal for OpenCV not to recognize GStreamer in a virtual environment unless it’s recompiled?
  • What are the recommended steps to enable GStreamer in OpenCV within a virtual environment?
  1. Environment and Versions:
  • Jetson Orin Nano with JetPack 6.1
  • Python 3 (in a virtual environment)
  • OpenCV installed via pip (default version)

Any guidance on whether I need to recompile OpenCV or how to properly enable GStreamer support for OpenCV in this setup would be greatly appreciated.

Thank you in advance for your help!

2

yes. there’s your problem