Full screen video on Jetson Xavier with gstreamer

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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I have been experimenting with various gstreamer pipelines and renderers in order to display full-screen video with the Jetson Xavier. So far, I have not been able to accomplish this with the renderers I know about. Here is what I have tried; I am wondering if anyone has any ideas.

  1. nvoverlaysink--this sort of works for rendering on one screen at a time. However, there is a red bar that goes across the screen about 20% down from the top, and if the cursor is moved, the screen fills with red (vertically) from where the red bar is to where the cursor is. Also, I would like to render on two screens at once, but when doing that, both screens turn red and everything freezes. I then have to restart the Jetson. (Also this renderer is deprecated.)
  2. nveglglessink--this works well, with the exception that I do not know how to make the window completely full-screen
  3. nvdrmvideosink--I have not managed to get a working pipeline with this renderer. I have not tried the commands ``` sudo systemctl stop gdm && sudo loginctl terminate-seat seat0 ``` as recommended in the Accelerated Gstreamer User Guide; does anyone know if this is required first? What will happen if I run them?
  4. xvimagesink--to get this pipeline to work i have to do additional cpu image conversion, which makes the framerate too low

Any thoughts on how to do this, or even better, working examples, are very much appreciated.

1 Like
2

Hi,
For full screen rendering, please follow the steps to run nvdrmvideosink. It is ‘Direct Rendering Manager’ and requires top disable Ubuntu desktop.

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Okay, thanks. I ran the commands in my post above to shut down Ubuntu desktop and I was able to use nvdrmvideosink in my pipeline over SSH. A couple of questions:

  • After I shut down gdm, is there a way to access to the command line, or do I have to log in remotely to start my pipeline?
  • If I try to restart gdm, I no longer have the mouse cursor. Is this a bug or is there a way to get the cursor back?

P.S. I think it would be helpful to add your explanations above to the Accelerated GStreamer User Guide.

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Hi,
If you need Ubuntu desktop, it may not be good to disable and enable it dynamically. nvdrmvideosink is designed for the case gdm is disabled.
You may try NvEglRenderer in tegra_multimedia_api. Please run 00_video_decode and check if it meets your requirement.