diff --git a/src/decoder/dvpp/DvppDecoder.cpp b/src/decoder/dvpp/DvppDecoder.cpp
index 74e3601..81ea7f9 100755
--- a/src/decoder/dvpp/DvppDecoder.cpp
+++ b/src/decoder/dvpp/DvppDecoder.cpp
@@ -519,7 +519,7 @@ void DvppDecoder::read_thread() {
     #endif
                     nSended = sendPkt(vdecChannelDesc, pkt, frame_nb);
 
-                    if(!m_bReal && frame_nb > 20 && m_avg_decode_time > 0) 
+                    if(frame_nb > 20 && m_avg_decode_time > 0) 
                     {
                         // 针对文件，根据解码时间做延时，避免占用过多显存
                         std::this_thread::sleep_for(std::chrono::milliseconds(m_avg_decode_time));