Indeed, the issue is by default, gstreamer1.0-libav is not installed because of licensing issues. If you make your image writable and then install this package, you should have no issues playing OPUS files anymore.
Indeed, the issue is by default, gstreamer1.0-libav is not installed because of licensing issues. If you make your image writable and then install this package, you should have no issues playing OPUS files anymore.