diff --git a/src/FFNvDecoder.cpp b/src/FFNvDecoder.cpp
index c76c0e0..3dc6519 100644
--- a/src/FFNvDecoder.cpp
+++ b/src/FFNvDecoder.cpp
@@ -3,6 +3,7 @@
 
 #include <chrono>
 #include <thread>
+#include <fstream>
 
 using namespace std;
 
@@ -36,6 +37,7 @@ FFNvDecoder::FFNvDecoder()
     name = "";
 
 	m_bPause = false;
+	m_bReal = true;
 }
 
 FFNvDecoder::~FFNvDecoder()
@@ -45,6 +47,14 @@ FFNvDecoder::~FFNvDecoder()
 
 bool FFNvDecoder::init(const string& path)
 {
+	fstream infile(path);
+	if (infile.is_open()){
+		m_bReal = false;
+		infile.close();
+	}else {
+		m_bReal = true;
+	}
+
 	// 查找对应的硬件解码设备
 	const char* device_name = "cuda";
 	AVHWDeviceType hw_device_type = av_hwdevice_find_type_by_name(device_name);
@@ -157,10 +167,14 @@ void FFNvDecoder::decode_thread()
 
 	while (m_bRunning)
 	{
-		if (m_bPause)
+		
+		if (!m_bReal)
 		{
-			std::this_thread::sleep_for(std::chrono::milliseconds(3));
-			continue;
+			if (m_bPause)
+			{
+				std::this_thread::sleep_for(std::chrono::milliseconds(3));
+				continue;
+			}
 		}
 		
 		int result = av_read_frame(fmt_ctx, pkt);
@@ -175,6 +189,16 @@ void FFNvDecoder::decode_thread()
 			break;
 		}
 
+		if (!m_bReal)
+		{
+			if (m_bPause)
+			{
+				av_packet_unref(pkt);
+				std::this_thread::sleep_for(std::chrono::milliseconds(3));
+				continue;
+			}
+		}
+
 		if (stream_index == pkt->stream_index)
 		{
 			result = avcodec_send_packet(avctx, pkt);
diff --git a/src/FFNvDecoder.h b/src/FFNvDecoder.h
index 8894f38..a225634 100644
--- a/src/FFNvDecoder.h
+++ b/src/FFNvDecoder.h
@@ -71,4 +71,6 @@ private:
 
     bool m_bPause;
     FrameQueue mFrameQueue;
+
+    bool m_bReal; // 是否实时流
 };
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 3aade7e..890b05f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -24,7 +24,7 @@ int main(){
     pDecManager->setUserPtr("dec1", decoder);
     pDecManager->startDecodeByName("dec1");
 
-    FFNvDecoder* dec2 = pDecManager->createDecoder("/home/cmhu/Proj_DxDecoder/data/test.mp4",postDecoded,"dec2");
+    FFNvDecoder* dec2 = pDecManager->createDecoder("/home/cmhu/data/test.mp4",postDecoded,"dec2");
     if (!dec2)
     {
         return 1;