优化点播, 级联点播级联录像。级联列表显示订阅状态

src/main/java/com/genersoft/iot/vmp/service/bean/InviteTimeOutCallback.java

@@ -0,0 +1,6 @@
+package com.genersoft.iot.vmp.service.bean;
+
+public interface InviteTimeOutCallback {
+
+    void run(int code, String msg); // code: 0 sip超时, 1 收流超时
+}

src/main/java/com/genersoft/iot/vmp/service/bean/PlayBackResult.java

@@ -7,9 +7,9 @@ import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
 import javax.sip.RequestEvent;
 
 public class PlayBackResult<T> {
-     private int code;
-     private T data;
-     private MediaServerItem mediaServerItem;
+    private int code;
+    private T data;
+    private MediaServerItem mediaServerItem;
     private JSONObject response;
     private SipSubscribe.EventResult event;