Overview

This layer enables hardware assisted video decoding in Chromium via the Chromium V4L2VideoDecoder + V4L2VideoDecoderBackendStateful, using the v4l-gst libv4l plugin to connect it to the H/W video decoder of Renesas RZ/G series available through GStreamer.

Currently, only H.264 & H.265 video codec are supported.

Building

1. Add this layer & meta-rz-codecs layer to your bblayers.conf file
   e.g.)

   $ bitbake-layers add-layer ../meta-rz-features/meta-rz-codecs
   $ bitbake-layers add-layer ../meta-browser-hwdecode

2. Build as usual
   e.g.)

   $ bitbake chromium-ozone-wayland

Configuration

The settings file for the v4l-gst bridge is located at /etc/xdg/libv4l-gst.conf. This file allows for specifying the GStreamer pipeline that the plugin will attempt to use to decode the video frames that it receives from the V4L2 interface.

e.g.)

[libv4l-gst]
min-buffers=2

[H264]
pipeline=h264parse ! omxh264dec

[HEVC]
pipeline=h265parse ! omxh265dec

Running with Chromium

Run as usual:

$ chromium file:///path/to/some/h264-video.html