From cf1adf1c92e003d232a31a9f36808ff6f48725f9 Mon Sep 17 00:00:00 2001
From: ziyue <1213642868@qq.com>
Date: Wed, 20 Oct 2021 10:58:05 +0800
Subject: [PATCH] =?UTF-8?q?=E5=85=BC=E5=AE=B9=E4=B8=80=E4=BA=9B=E4=B8=8D?=
 =?UTF-8?q?=E8=A7=84=E8=8C=83=E7=9A=84rtsp=E6=B5=81?=
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---
 src/Common/Stamp.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Common/Stamp.cpp b/src/Common/Stamp.cpp
index 2129bd63..d0b18d87 100644
--- a/src/Common/Stamp.cpp
+++ b/src/Common/Stamp.cpp
@@ -223,6 +223,10 @@ void NtpStamp::setNtpStamp(uint32_t rtp_stamp, uint64_t ntp_stamp_ms) {
 }
 
 void NtpStamp::update(uint32_t rtp_stamp, uint64_t ntp_stamp_ms) {
+    if (ntp_stamp_ms == 0) {
+        //实测发现有些rtsp服务器发送的rtp时间戳和ntp时间戳一直为0
+        return;
+    }
     _last_rtp_stamp = rtp_stamp;
     _last_ntp_stamp_ms = ntp_stamp_ms;
 }