Running the GstQtOverlay plugin without Graphics Server

GStreamer Qt Overlay
Overview
Architecture Supported Platforms Capabilities Properties
Getting Started
Dependencies Evaluating GstQtOverlay Building GstQtOverlay Checking GstQtOverlay Install Running without Graphics Server Platform-Specific Support
Examples
x86 PC NXP NVIDIA Jetson Use Cases
Performance
NVIDIA Jetson NXP x86 PC
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Many embedded systems run without a graphics server. The most common graphics servers would be X11 (Xorg) or Wayland (Weston). QtOverlay may run without a graphics server by using purely EGL.

To run without a graphics server set the following variables:

export QT_QPA_EGLFS_INTEGRATION=none
export QT_QPA_PLATFORM=eglfs

For example, the following pipeline will run in a Jetson platform without any graphics server running:

QT_QPA_EGLFS_INTEGRATION=none QT_QPA_PLATFORM=eglfs GST_DEBUG=2 gst-launch-1.0 videotestsrc ! nvvidconv ! qtoverlay qml=main.qml ! nvvidconv ! video/x-raw\(memory:NVMM\),format=I420 ! nvoverlaysink