Gstreamer crashes with X11

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
#1

I am trying to work through a g streamer issue that is plaguing my development workflow with a very basic setup. I have done the following

  1. Install OS and SDK libs via SDK manager for Jetpack 4.4
  2. Install OpenCV with this script https://github.com/mdegans/nano_build_opencv
  3. Run a simple gstreamer app:

"launch_stream
<< “nvarguscamerasrc name=CAMsource sensor-id=0 sensor-mode=0 "
<< “tnr-mode=0 " // switch off denoising
<< “aelock=0 exposuretimerange=“50000 1000000” gainrage=“1 16” " // range-bounded auto-exposure
<< “! video/x-raw(memory:NVMM),width=”<< w <<”,height=”<< h <<”,framerate=36/1,format=NV12 "
<< “! nvvidconv name=NV12toYUVconv "
<< “! video/x-raw(memory:NVMM),format=I420 "
<< “! nvvidconv name=YUVtoRGBAconv "
<< “! video/x-raw(memory:NVMM),width=”<< w/scale_factor <<”,height=”<< h/scale_factor <<”,format=RGBA "
// << "! nvvidconv ! nveglglessink -e "; // uncomment for preview
<< “! fakesink”;

It works fine with fakesink, but the nveglglessink line crashes with x11

#3

Hi,
The pipeline looks not right. Please try the samples:
OpenCV Video Capture with GStreamer doesn't work on ROS-melodic
[Gstreamer] nvvidconv, BGR as INPUT

#4

The source works fine with the samples, but for some reason it always crashes with the egl gles sink.

#5

Hi,
For running gstreamer pipeline in OpenCV, you have to use appsink. The nveglglessink plugin is used in pure gstreamer commands.

#6

It appears I was provided source with a hidden bug.

“gainrage” should be “gainrange”

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