How to play two different videos in two different displays simultaneously using gstreamer?

[Nicolas Dufresne]

Le jeudi 12 septembre 2019 à 06:56 -0500, NikhilMG a écrit :
> I am using 
> 1. Raspberry Pi 4 Model B which has 2 HDMI ports. 
> 2. Gstreamer-1.0
> 
> I have two videos saved in memory card. I want to drive two videos to two
> different HDMI port and play videos in two different Displays
> simultaneously. I would like to know the Gstreamer pipeline to access the
> HDMI-1 and HDMI-2 ports and also play two different videos in different
> displays simultaneously.
> 
> Here I am trying to drive video.mp4 to HDMI-2.
> */gst-launch-1.0 playbin3 videosink="mfw-v4lsink device=dev/video18"
> uri=file:///home/pi/Downloads/video.mp4/

mfw-v4l2sink looks like one of Freescale plugin. The Raspberry Pi has
stanard DRM drivers for the display. The easiest way is to start X11 or
Wayland (weston), and then use the appropriate API to select the output
to display on, this needs some programming of course.

The alternative is to use kmssink, but that right now can only work if
the two connectors can run on seperate CRTC, I don't know (and haven't
tested yet) what is possible on the PI. I believe I can guide you on
how to improve kmssink.

> *
> I even tried 
> */gst-launch-1.0 playbin3 videosink="mfw-v4lsink device=HDMI-2"
> uri=file:///home/pi/Downloads/video.mp4
> / *
> and also tried
> */gst-launch-1.0 playbin3 videosink="mfw-v4lsink device=dev/HDMI-2"
> uri=file:///home/pi/Downloads/video.mp4
> /*
> I am not able to drive the video to HDMI-2 port. I expect the video to be
> played in HDMI-2, but the actual output is coming in HDMI-1 for all the
> above 3 given pipelines.
> 
> 
> 
> 
> 
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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