gentoo-overlay/media-plugins/gst-plugins-vaapi/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<maintainer type="project">
		<email>gstreamer@gentoo.org</email>
		<name>GStreamer package maintainers</name>
	</maintainer>
	<use>
		<flag name="drm">Enable DRM renderer</flag>
		<flag name="egl">Enable EGL support</flag>
		<flag name="gles2">Enable GLESv2 and GLESv3 support</flag>
	</use>
</pkgmetadata>