From d679a9fcf8355e56f7be79a535e81f8300c70cb5 Mon Sep 17 00:00:00 2001
From: 648540858 <456panlinlin>
Date: 星期四, 28 四月 2022 17:28:51 +0800
Subject: [PATCH] 添加对点播时设备自定义ssrc的支持

---
 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
index 8025818..eed3763 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -25,6 +25,7 @@
      * */
     public static String getChannelIdFromHeader(Request request) {
         Header subject = request.getHeader("subject");
+        if (subject == null) return null;
         return ((Subject) subject).getSubject().split(":")[0];
     }
 

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