From 0f1d1ded7e5a834a04464efadd6dc46094e1f1d9 Mon Sep 17 00:00:00 2001
From: ziyue <1213642868@qq.com>
Date: Fri, 25 Jun 2021 18:08:03 +0800
Subject: [PATCH] =?UTF-8?q?rid=E6=94=AF=E6=8C=81=E6=9B=B4=E6=96=B0?=
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---
 webrtc/RtpExt.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/webrtc/RtpExt.cpp b/webrtc/RtpExt.cpp
index dfbf10a0..bf749fa9 100644
--- a/webrtc/RtpExt.cpp
+++ b/webrtc/RtpExt.cpp
@@ -623,7 +623,9 @@ void RtpExtContext::changeRtpExtId(const RtpHeader *header, bool is_recv, string
         rid = _ssrc_to_rid[ssrc];
     } else {
         //设置rid
-        if (_ssrc_to_rid.emplace(ssrc, rid).second) {
+        auto it = _ssrc_to_rid.find(ssrc);
+        if (it == _ssrc_to_rid.end() || it->second != rid) {
+            _ssrc_to_rid[ssrc] = rid;
             onGetRtp(header->pt, ssrc, rid);
         }
     }