From 5322a5761b1d35f188ad58c5ead3d56c5834ce2d Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Mon, 16 Dec 2019 16:17:52 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=97=B6=E9=97=B4=E6=88=B3?=
 =?UTF-8?q?=E8=B7=B3=E8=B7=83=E5=8F=AF=E8=83=BD=E5=AF=BC=E8=87=B4=E7=9A=84?=
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---
 src/Common/Stamp.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/Common/Stamp.cpp b/src/Common/Stamp.cpp
index f3507869..9d2c2d45 100644
--- a/src/Common/Stamp.cpp
+++ b/src/Common/Stamp.cpp
@@ -26,6 +26,8 @@
 
 #include "Stamp.h"
 
+#define MAX_DELTA_STAMP 300
+
 namespace mediakit {
 
 int64_t DeltaStamp::deltaStamp(int64_t stamp) {
@@ -39,7 +41,8 @@ int64_t DeltaStamp::deltaStamp(int64_t stamp) {
     if(ret >= 0){
         //时间戳增量为正，返回之
         _last_stamp = stamp;
-        return ret;
+        //在直播情况下，时间戳增量不得大于MAX_DELTA_STAMP
+        return  ret < MAX_DELTA_STAMP ? ret : (_playback ? ret : 0);
     }
 
     //时间戳增量为负，说明时间戳回环了或回退了
@@ -72,8 +75,8 @@ void Stamp::revise(int64_t dts, int64_t pts, int64_t &dts_out, int64_t &pts_out,
     dts_out = _relativeStamp;
 
     //////////////以下是播放时间戳的计算//////////////////
-    if(pts_dts_diff > 200 || pts_dts_diff < -200){
-        //如果差值大于200毫秒，则认为由于回环导致时间戳错乱了
+    if(pts_dts_diff > MAX_DELTA_STAMP || pts_dts_diff < -MAX_DELTA_STAMP){
+        //如果差值太大，则认为由于回环导致时间戳错乱了
         pts_dts_diff = 0;
     }