Mechanisms for Screen Capture and Video Encoding on Genio 510 EVK (MT8370) with Wayland

[Gurukiran_M_B]

Hi MediaTek Team,

I’m working with the Genio 510 EVK (MT8370) running IoT Yocto and Wayland, and I’d like to understand the available mechanisms for:

1. Screen Capture:

   • What are the supported methods to capture the screen in a Wayland environment?

   • Are tools like PipeWire, Wayland screencopy protocol, or Weston plugins supported on this platform?

   • Is it possible to capture still images (screenshots) or video frames directly from the display?

2. Video Encoding:

   • What mechanisms are available for hardware-accelerated video encoding (e.g., H.264/H.265)?

   • Can we use GStreamer with plugins like v4l2h264enc or v4l2convert?

   • Are there overlays or device tree configurations required to enable encoding?

Any guidance or examples would be greatly appreciated.

Thanks,
Gurukiran Mb

[macross.chen]

Hi Gurukiran Mb,

All Genio platforms provide the V4L2 H.264/H.265 hardware-accelerated encoder for GStreamer, which the v4l2h264enc and v4l2h265enc GStreamer plugins can control. The v4l2convert is also supported as a format converter and resizer.

The v4l2h264enc, v4l2h265enc, and v4l2convert are enabled by default in the IoT Yocto package. Please refer to IoT Yocto Document - Video Codec.

As IoT Yocto provides a hardware-accelerated BSP package, the screen capture feature is at the functional application level, which IoT Yocto has not tested. It is recommended that you enable Wayland’s zwlr_screencopy_manager_v1 for testing the screen capture function.