From 64c15fa53e05341322da80ab79a8d64bd411d056 Mon Sep 17 00:00:00 2001
From: wanghui <13282027326@163.com>
Date: Sun, 11 Jun 2023 16:24:08 +0800
Subject: [PATCH] Update SipUtils.java
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修复点播取流失败
---
 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 29f1654ce..05c4ede86 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
@@ -207,7 +207,7 @@ public class SipUtils {
         if (mediaDescriptionIndex == 0 && ssrcIndex == 0) {
             sdp = SdpFactory.getInstance().createSessionDescription(sdpStr);
         }else {
-            int baseSdpIndex = Math.min(mediaDescriptionIndex, ssrcIndex);
+            int baseSdpIndex = Math.max(mediaDescriptionIndex, ssrcIndex);
             //ssrc规定长度为10字节，不取余下长度以避免后续还有“f=”字段
             String substring = sdpStr.substring(0, baseSdpIndex);
             sdp = SdpFactory.getInstance().createSessionDescription(substring);