diff --git a/src/Rtmp/RtmpMediaSource.h b/src/Rtmp/RtmpMediaSource.h
index bc958ac5..b538c003 100644
--- a/src/Rtmp/RtmpMediaSource.h
+++ b/src/Rtmp/RtmpMediaSource.h
@@ -153,7 +153,8 @@ public:
             }
         }
         bool key = pkt->isVideoKeyFrame();
-        PacketCache<RtmpPacket>::inputPacket(pkt->type_id == MSG_VIDEO, std::move(pkt), key);
+        bool is_video = pkt->type_id == MSG_VIDEO;
+        PacketCache<RtmpPacket>::inputPacket(is_video, std::move(pkt), key);
     }
 
     /**
diff --git a/src/Rtsp/RtspMediaSource.h b/src/Rtsp/RtspMediaSource.h
index 5a8f39e8..cafeaf33 100644
--- a/src/Rtsp/RtspMediaSource.h
+++ b/src/Rtsp/RtspMediaSource.h
@@ -182,7 +182,8 @@ public:
                 regist();
             }
         }
-        PacketCache<RtpPacket>::inputPacket(rtp->type == TrackVideo, std::move(rtp), keyPos);
+        bool is_video = rtp->type == TrackVideo;
+        PacketCache<RtpPacket>::inputPacket(is_video, std::move(rtp), keyPos);
     }
 
     void clearCache() override{