From 8f108395a5dfefbc909b12c2152dcaff08e3c450 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Sun, 26 Feb 2023 21:11:31 +0800
Subject: [PATCH] =?UTF-8?q?rtp=E6=9C=8D=E5=8A=A1=E5=99=A8=E8=BF=87?=
 =?UTF-8?q?=E6=BB=A4=E9=9D=9Ertp=E5=8C=85:=20#2247?=
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防止非法数据干扰后续处理逻辑对rtp ssrc/pt等的绑定
---
 src/Rtp/RtpProcess.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Rtp/RtpProcess.cpp b/src/Rtp/RtpProcess.cpp
index 0673931e..993ed158 100644
--- a/src/Rtp/RtpProcess.cpp
+++ b/src/Rtp/RtpProcess.cpp
@@ -70,7 +70,16 @@ RtpProcess::~RtpProcess() {
     }
 }
 
+static bool is_rtp(const char *buf) {
+    RtpHeader *header = (RtpHeader *)buf;
+    return ((header->pt < 64) || (header->pt >= 96));
+}
+
 bool RtpProcess::inputRtp(bool is_udp, const Socket::Ptr &sock, const char *data, size_t len, const struct sockaddr *addr, uint64_t *dts_out) {
+    if (!is_rtp(data)) {
+        WarnL << "Not rtp packet";
+        return false;
+    }
     if (_sock != sock) {
         // 第一次运行本函数
         bool first = !_sock;