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 |   10 ++++++++++
 1 files changed, 10 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 9dd0271..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
@@ -2,8 +2,10 @@
 
 import gov.nist.javax.sip.address.AddressImpl;
 import gov.nist.javax.sip.address.SipUri;
+import gov.nist.javax.sip.header.Subject;
 
 import javax.sip.header.FromHeader;
+import javax.sip.header.Header;
 import javax.sip.message.Request;
 
 /**
@@ -18,6 +20,14 @@
         FromHeader fromHeader = (FromHeader)request.getHeader(FromHeader.NAME);
         return getUserIdFromFromHeader(fromHeader);
     }
+    /**
+     * 浠巗ubject璇诲彇channelId
+     * */
+    public static String getChannelIdFromHeader(Request request) {
+        Header subject = request.getHeader("subject");
+        if (subject == null) return null;
+        return ((Subject) subject).getSubject().split(":")[0];
+    }
 
     public static String getUserIdFromFromHeader(FromHeader fromHeader) {
         AddressImpl address = (AddressImpl)fromHeader.getAddress();

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