diff --git a/src/Extension/H264Rtmp.cpp b/src/Extension/H264Rtmp.cpp
index 6765b476..f3c7734c 100644
--- a/src/Extension/H264Rtmp.cpp
+++ b/src/Extension/H264Rtmp.cpp
@@ -182,8 +182,8 @@ void H264RtmpEncoder::inputFrame(const Frame::Ptr &frame) {
                 break;
         }
     }
-    if((frame->configFrame() || frame->keyFrame()) && _lastPacket){
-        // key frame or sps pps flush frame
+    if(frame->configFrame() && _lastPacket &&_lastPacketHasVCL){
+        //sps pps flush frame
         RtmpCodec::inputRtmp(_lastPacket);
         _lastPacket = nullptr;
         _lastPacketHasVCL = false;
diff --git a/src/Extension/H265Rtmp.cpp b/src/Extension/H265Rtmp.cpp
index 84dddad6..cc46905b 100644
--- a/src/Extension/H265Rtmp.cpp
+++ b/src/Extension/H265Rtmp.cpp
@@ -169,9 +169,21 @@ void H265RtmpEncoder::inputFrame(const Frame::Ptr &frame) {
         return;// 防止sei aud 作为一帧
     }
 
-    if (_lastPacket && (_lastPacket->time_stamp != frame->dts() || (type >=H264Frame::NAL_B_P && type<=H264Frame::NAL_IDR && (pcData[2]>>7 &0x01) !=0))) {
+    if(frame->configFrame() && _lastPacket &&_lastPacketHasVCL){
+        // sps pps flush frame
         RtmpCodec::inputRtmp(_lastPacket);
         _lastPacket = nullptr;
+        _lastPacketHasVCL = false;
+    }
+
+    if (_lastPacket && (_lastPacket->time_stamp != frame->dts() || (_lastPacketHasVCL &&type>=H265Frame::NAL_TRAIL_R &&type<= H265Frame::NAL_RSV_IRAP_VCL23 && (pcData[2]>>7 &0x01) !=0))) {
+        RtmpCodec::inputRtmp(_lastPacket);
+        _lastPacket = nullptr;
+        _lastPacketHasVCL = false;
+    }
+
+    if(type>=H265Frame::NAL_TRAIL_R &&type<= H265Frame::NAL_RSV_IRAP_VCL23){
+        _lastPacketHasVCL = true;
     }
 
     if(!_lastPacket) {
diff --git a/src/Extension/H265Rtmp.h b/src/Extension/H265Rtmp.h
index e4f97a08..6ba0f8a1 100644
--- a/src/Extension/H265Rtmp.h
+++ b/src/Extension/H265Rtmp.h
@@ -84,6 +84,7 @@ private:
     string _pps;
     H265Track::Ptr _track;
     RtmpPacket::Ptr _lastPacket;
+    bool _lastPacketHasVCL = false;
 };
 
 }//namespace mediakit