From SomLabs Wiki
The SomlabsDemo application for VisionSOM-STM32MP1 module and VisionCB-STM32MP1-STD board presents the capability of displaying a video file and graphical interface build using the Qt framework. The demo application utilizes the GStreamer library for video playback support.
The application displays the video file given as an argument and controls the LED connected to the PA11 pin that is configured as a PWM output. The LED is turned on/off by the button and the slider is used for brightness control. The LED is controlled using the /sys/class/leds subsystem.
The demo binary file can be download here: SomlabsDemo_MP1.zip and run using command:
./SomlabsDemo -platform wayland-egl /home/root/example_video_file.mp4
The example video file is available on the SoMLabs FTP: SoMLabs-STM32MP1-vdemo-2020-05.mp4