实时连接注册通道，解决开始时间过长问题

src/main/java/com/jttserver/relay/FlvRealtimeStreamRelay.java

@@ -64,6 +64,7 @@ public class FlvRealtimeStreamRelay extends StreamRelay {
         // 还没有视频设备连接可直接返回true
         if (channelId == null || channelId.isEmpty())
         {
+            server.registerChannel(streamId, ch, this);
             return true;
         }