diff --git a/demuxer/Demuxers/LAVFDemuxer.cpp b/demuxer/Demuxers/LAVFDemuxer.cpp
index 3d27079e3..626369536 100644
--- a/demuxer/Demuxers/LAVFDemuxer.cpp
+++ b/demuxer/Demuxers/LAVFDemuxer.cpp
@@ -1437,6 +1437,7 @@ STDMETHODIMP CLAVFDemuxer::GetNextPacket(Packet **ppPacket)
         m_avFormat->pb->eof_reached = 0;
     }
 
+    m_timeOpening = time(nullptr);
     int result = 0;
     try
     {
@@ -1446,6 +1447,7 @@ STDMETHODIMP CLAVFDemuxer::GetNextPacket(Packet **ppPacket)
     {
         // ignore..
     }
+    m_timeOpening = 0;
 
     if (result == AVERROR(EINTR) || result == AVERROR(EAGAIN))
     {