diff --git a/src/Common/MultiMediaSourceMuxer.cpp b/src/Common/MultiMediaSourceMuxer.cpp
index bbb9b357..cbf8922d 100644
--- a/src/Common/MultiMediaSourceMuxer.cpp
+++ b/src/Common/MultiMediaSourceMuxer.cpp
@@ -324,7 +324,7 @@ void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const MediaSourceE
 
         // 可能归属线程发生变更
         strong_self->getOwnerPoller(MediaSource::NullMediaSource())->async([=]() {
-            strong_self->_rtp_sender[ssrc] = std::move(reader);
+            strong_self->_rtp_sender.emplace(ssrc,reader);
         });
     });
 #else
diff --git a/src/Common/MultiMediaSourceMuxer.h b/src/Common/MultiMediaSourceMuxer.h
index 4db34d42..45ab7623 100644
--- a/src/Common/MultiMediaSourceMuxer.h
+++ b/src/Common/MultiMediaSourceMuxer.h
@@ -168,7 +168,7 @@ private:
     toolkit::Ticker _last_check;
     Stamp _stamp[2];
     std::weak_ptr<Listener> _track_listener;
-    std::unordered_map<std::string, RingType::RingReader::Ptr> _rtp_sender;
+    std::unordered_multimap<std::string, RingType::RingReader::Ptr> _rtp_sender;
     FMP4MediaSourceMuxer::Ptr _fmp4;
     RtmpMediaSourceMuxer::Ptr _rtmp;
     RtspMediaSourceMuxer::Ptr _rtsp;