public im.turms.plugin.livekit.core.proto.models.VideoLayer.Builder addLayersBuilder(
                int index) {
            return getLayersFieldBuilder().addBuilder(index,
                    im.turms.plugin.livekit.core.proto.models.VideoLayer.getDefaultInstance());
        }
<pre>
simulcast layers to publish, when empty, should usually be set to layers at 1/2 and 1/4 of the dimensions
</pre>

<code>repeated .livekit.VideoLayer layers = 3;</code>
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/ingress/IngressVideoEncodingOptions.java