From 33da2e28ec3a6e4421602cf6c4c326037a57a975 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Sun, 11 Apr 2021 01:14:41 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dpt=E8=A6=86=E7=9B=96=E5=A4=B1?=
 =?UTF-8?q?=E8=B4=A5=E7=9A=84bug?=
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---
 webrtc/SrtpSession.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/webrtc/SrtpSession.cpp b/webrtc/SrtpSession.cpp
index cf359b7e..4591e466 100644
--- a/webrtc/SrtpSession.cpp
+++ b/webrtc/SrtpSession.cpp
@@ -244,7 +244,7 @@ namespace RTC
 		}
 
 		std::memcpy(EncryptBuffer, *data, *len);
-        EncryptBuffer[1] |= (pt & 0x7F);
+        EncryptBuffer[1] = (pt & 0x7F) | (EncryptBuffer[1] & 0x80);
 
 		srtp_err_status_t err =
 		  srtp_protect(this->session, static_cast<void*>(EncryptBuffer), reinterpret_cast<int*>(len));