[core] fix CRcvBufferNew::m_iStartSeqNo was not sync in group

Haivision · Apr 21, 2022 · c76f43d · c76f43d
1 parent 48d1364
commit c76f43d
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diff --git a/srtcore/buffer_rcv.h b/srtcore/buffer_rcv.h
@@ -325,6 +325,8 @@ class CRcvBufferNew
 
     void setPeerRexmitFlag(bool flag) { m_bPeerRexmitFlag = flag; } 
 
+    void applyGroupISN(int rcv_isn) { m_iStartSeqNo = rcv_isn; }
+
     void applyGroupTime(const time_point& timebase, bool wrp, uint32_t delay, const duration& udrift);
 
     void applyGroupDrift(const time_point& timebase, bool wrp, const duration& udrift);

diff --git a/srtcore/core.cpp b/srtcore/core.cpp
@@ -3333,6 +3333,11 @@ void srt::CUDT::synchronizeWithGroup(CUDTGroup* gp)
                     << " (shift by " << CSeqNo::seqcmp(snd_isn, m_iSndLastAck) << ")");
             setInitialRcvSeq(rcv_isn);
             setInitialSndSeq(snd_isn);
+#if ENABLE_NEW_RCVBUFFER
+            enterCS(m_RecvLock);
+            m_pRcvBuffer->applyGroupISN(rcv_isn);
+            leaveCS(m_RecvLock);
+#endif
         }
         else
         {