I’m currently working on a project that uses 2 cameras for object detection: one camera on a raspberry pi to stream video over TCP using Gstreamer and the other is connected to the board itself. When I use the gstreamer pipeline over the command line, it seems to work fine with about a ~500ms latenc…

Hi, There is synchronization mechanism in gstreamer. Please set sync=0 to disable it and see if it helps. Please also try hardware decoder nvv4l2decoder plugin.

Hi DaneLLL, Thank you for helping so quickly. Adding the sync=0 flag to the viewing command has drastically improved latency, but I’ve now run into two new issues: Running the multi-threaded code above causes the python script to load the first frame, then immediately freeze and become unrespon…

Hi, Not sure if it helps but please try ... ! appsink drop=1 And please add h264parse: ... ! h264parse ! nvv4l2decoder ! ... See if hardware decoder can work.

Hi, Here is my current progress now. Adding in the drop=1 flag allows the two cameras to stream for maybe around ~1 second before once again crashing the script. The gstreamer viewing command is as follows: raspicap = cv.VideoCapture(“tcpclientsrc host=192.168.0.52 port=5000 ! gdpdepay ! rtph26…

Hi, Please launch the source in UDP or RTSP for a try. To see if UDP or RTSP works. You may refer to the commands in Jetson AGX Orin FAQ Q: Is there any example of running RTSP streaming? Q: Is there an example for running UDP streaming?

Hi DaneLLL, My main issue is that my OpenCV keeps not responding after a while with the VideoCapture elements in openCV stop responding after a while with Gstreamer. The latency issue has been fixed with sync=0 and drop=1 flags, but my main issue is with the crashing. Is there a reason why openCV…

Increasing latency when using Gstreamer in OpenCV

Robotics & Edge Computing Jetson Systems Jetson Orin Nano

DaneLLL February 21, 2024, 8:56am 9

Hi,
This looks to be constraint of OpenCV. Please try the suggestion:
Taking in two Gstreamer VideoCapture into OpenCV can only be done in a single thread - #3 by DaneLLL

Topic		Replies	Views
High latency for running Gstreamer on opencv Jetson Nano opencv , gstreamer	5	1179	September 22, 2023
Opencv & gstreamer capture and record Jetson AGX Orin opencv , gstreamer , jetson	5	3069	March 14, 2023
Latency of 150ms when creating opencv videocapture + gstreamer Jetson Nano gstreamer	3	1299	November 19, 2021
Python opencv gstreamer RTSP stream error Jetson Nano gstreamer	17	7085	March 11, 2022
OpenCV extremely slow with gstreamer camera Jetson Nano opencv , gstreamer	5	2818	July 15, 2021
OpenCV camera lag Jetson Nano opencv , gstreamer , nano2gb	11	3818	December 16, 2020
Taking in two Gstreamer VideoCapture into OpenCV can only be done in a single thread Jetson Orin Nano camera , opencv , gstreamer	1	679	February 21, 2024
Jetson NX OpenCV GStreamer Issue Jetson Xavier NX camera , opencv , gstreamer	6	1230	August 5, 2022
GStreamer can open IP Camera successfully, but uisng OpenCV CAP_GSTREAMER can't open IP Camera ? Jetson TX2	3	6774	December 20, 2018
Not able to run Gstreamer properly Jetson Nano gstreamer	8	2396	April 29, 2021

Increasing latency when using Gstreamer in OpenCV

Related topics