From f6a97af55c7b8d888c98a7f955297b2ce3240f8b Mon Sep 17 00:00:00 2001
From: xia-chu <771730766@qq.com>
Date: Sat, 25 Nov 2023 11:27:29 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dmp4=E5=BD=95=E5=88=B6?=
 =?UTF-8?q?=E4=BD=BF=E7=94=A8=E7=9B=B8=E5=AF=B9=E6=97=B6=E9=97=B4=E6=88=B3?=
 =?UTF-8?q?=E5=AF=BC=E8=87=B4=E4=B8=8D=E5=90=8C=E6=AD=A5=E7=9A=84bug?=
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---
 src/Record/MP4Muxer.cpp | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/Record/MP4Muxer.cpp b/src/Record/MP4Muxer.cpp
index 5458a31d..340681ac 100644
--- a/src/Record/MP4Muxer.cpp
+++ b/src/Record/MP4Muxer.cpp
@@ -169,11 +169,15 @@ void MP4MuxerInterface::stampSync() {
     }
 
     Stamp *audio = nullptr, *video = nullptr;
-    for(auto &pr : _codec_to_trackid){
-        switch (getTrackType((CodecId) pr.first)){
-            case TrackAudio : audio = &pr.second.stamp; break;
-            case TrackVideo : video = &pr.second.stamp; break;
-            default : break;
+    for (auto &pr : _codec_to_trackid) {
+        auto &stamp = pr.second.stamp;
+        // mp4录制时间戳不允许回退，最大跳跃幅度500ms
+        stamp.enableRollback(false);
+        stamp.setMaxDelta(500);
+        switch (getTrackType((CodecId)pr.first)) {
+            case TrackAudio: audio = &stamp; break;
+            case TrackVideo: video = &stamp; break;
+            default: break;
         }
     }