How to restart/free gstreamer with jetson nano?

[bladetins]

The gstreamer pipeline works fine for the first time in python-opencv after each boot. But after exiting normally, the same code will report an error when trying to open gstreamer again. opencv cannot read each frame from the gstreamer pipeline. So I would like to ask if there is a bash command or python script that can free the resources occupied by gstreamer? There are similar problems in the forum, but above methods do not work for the problem I am currently facing.

How to close gstreamer pipeline in python

I’m using the gstreamer pipeline as demonstrated in some other posts on this forum but the program won’t completely stop once I’m done taking pictures. After taking the picture, the terminal shows GST_ARGUS: Cleaning up GST_ARGUS: PowerServiceHwVic::cleanupResources and won’t relinquish control back to me unless I ctrl-Z out of the program. How can I close the pipeline? Additional question: Is there a way to suppress the terminal output associated with using the gstreamer pipeline? Here is t…

Hope to get your help! Thanks!

[bladetins]

How to free/restart the gstreamer nvarguscamerasrc module

Hi, i’m using a waveshare camera with python and opencv. Everything works fine with my setup. Sometimes i got an error with my gstreamer pipeline like “no return from capture device”. I think this happens when i quit on my application dirty before (like ctrl+c) Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:532 Failed to create CaptureSession Got EOS from element "pipeline0". The only thing i can do, to fix this probl…

[DaneLLL]

Hi,
There is no existing python sample but a user shares a C sample:
Nvidia-desktop kernel: [407343.357549] (NULL device *): nvhost_channelctl: invalid cmd 0x80685600 - #18 by DawnMaples

Please refer to it and see if you can run the same in python.