Fixed ugly typo that could crash the VideoRoom (fixes #2352)

plugins/janus_videoroom.c

@@ -54,7 +54,7 @@ room-<unique room ID>: {
 	is_private = true|false (private rooms don't appear when you do a 'list' request, default=false)
 	secret = <optional password needed for manipulating (e.g. destroying) the room>
 	pin = <optional password needed for joining the room>
-	require_pvtid = true|false (whether subscriptions are required to provide a valid private_id 
+	require_pvtid = true|false (whether subscriptions are required to provide a valid private_id
 				 to associate with a publisher, default=false)
 	publishers = <max number of concurrent senders> (e.g., 6 for a video
 				 conference or 1 for a webinar, default=3)
@@ -4933,7 +4933,7 @@ void janus_videoroom_incoming_rtp(janus_plugin_session *handle, janus_plugin_rtp
 						json_object_set_new(info, "videoroom", json_string(participant->talking ? "talking" : "stopped-talking"));
 						json_object_set_new(info, "room", string_ids ? json_string(videoroom->room_id_str) : json_integer(videoroom->room_id));
 						json_object_set_new(info, "id", string_ids ? json_string(participant->user_id_str) : json_integer(participant->user_id));
-						json_object_set_new(event, "audio-level-dBov-avg", json_real(audio_dBov_avg));
+						json_object_set_new(info, "audio-level-dBov-avg", json_real(audio_dBov_avg));
 						gateway->notify_event(&janus_videoroom_plugin, session->handle, info);
 					}
 				}