diff --git a/web/src/main/java/com/zhehekeji/web/lib/joyware/CallBack.java b/web/src/main/java/com/zhehekeji/web/lib/joyware/CallBack.java
index 4213159..4904e2f 100644
--- a/web/src/main/java/com/zhehekeji/web/lib/joyware/CallBack.java
+++ b/web/src/main/java/com/zhehekeji/web/lib/joyware/CallBack.java
@@ -28,7 +28,14 @@ public class CallBack {
         @Override
         public void invoke(NetSDKLib.LLong lPlayHandle, int dwTotalSize, int dwDownLoadSize, int index, NetSDKLib.NET_RECORDFILE_INFO.ByValue recordfileinfo, Pointer dwUser) {
             if(dwDownLoadSize == -1) {
-                JoywareLoginModuleImpl.netsdk.CLIENT_StopDownload(lPlayHandle);
+                log.info("stop donwload mp4");
+                Thread thread = new Thread(new Runnable() {
+                    @Override
+                    public void run() {
+                        JoywareLoginModuleImpl.netsdk.CLIENT_StopDownload(lPlayHandle);
+                    }
+                });
+                thread.start();
             }
         }
     }
diff --git a/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareCameraControlModuleImpl.java b/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareCameraControlModuleImpl.java
index f71aea7..11a94f4 100644
--- a/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareCameraControlModuleImpl.java
+++ b/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareCameraControlModuleImpl.java
@@ -9,6 +9,8 @@ import lombok.extern.slf4j.Slf4j;
 
 import java.time.LocalDateTime;
 
+import static com.zhehekeji.web.lib.joyware.JoywareLoginModuleImpl.mp4ReceiveCB;
+
 /**
  * 云台控制接口实现
  * 主要有 ：八个方向控制、变倍、变焦、光圈功能
@@ -249,6 +251,7 @@ public class JoywareCameraControlModuleImpl implements CameraControlModule {
         startTime.setTime(start.getYear(), start.getMonthValue(), start.getDayOfMonth(), start.getHour(), start.getMinute(), start.getSecond());
         NetSDKLib.NET_TIME endTime = new NetSDKLib.NET_TIME();
         endTime.setTime(end.getYear(), end.getMonthValue(), end.getDayOfMonth(), end.getHour(), end.getMinute(), end.getSecond());
+
         NetSDKLib.NET_IN_DOWNLOAD_BY_DATA_TYPE download_by_data_type = new NetSDKLib.NET_IN_DOWNLOAD_BY_DATA_TYPE();
         download_by_data_type.nChannelID = 0;
         download_by_data_type.stStartTime = startTime;
@@ -256,13 +259,16 @@ public class JoywareCameraControlModuleImpl implements CameraControlModule {
         download_by_data_type.szSavedFileName = path;
         download_by_data_type.emDataType = 3;
         download_by_data_type.emRecordType = 0;
+        download_by_data_type.cbDownLoadPos = mp4ReceiveCB;
         download_by_data_type.write();
         NetSDKLib.NET_OUT_DOWNLOAD_BY_DATA_TYPE net_out_download_by_data_type = new NetSDKLib.NET_OUT_DOWNLOAD_BY_DATA_TYPE();
         net_out_download_by_data_type.write();
+
         NetSDKLib.LLong l = JoywareLoginModuleImpl.netsdk.CLIENT_DownloadByDataType(CameraConnMap.getConnId(cameraId), download_by_data_type.getPointer(), net_out_download_by_data_type.getPointer(), 8000);
-        log.info("start download mp4 path:{},startTime:{} ,endTime:{},now:{}，status:{}", path, startTime.toString(), endTime.toString(), LocalDateTime.now(),l.longValue());
-        if (l.longValue() == 0) {
-            log.error("download mp4 error :{},cameraId:{}", ToolKits.getErrorCodePrint(),cameraId);
+        if(l.longValue() != 0){
+            log.info("start download mp4 path:{},startTime:{} ,endTime:{},now:{},status:{}", path, start, end, LocalDateTime.now(),l.longValue());
+        }else {
+            log.error("download mp4 error,startTime:{} ,endTime:{}",start,end);
         }
     }
 
diff --git a/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareLoginModuleImpl.java b/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareLoginModuleImpl.java
index b498051..6b0a0ad 100644
--- a/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareLoginModuleImpl.java
+++ b/web/src/main/java/com/zhehekeji/web/lib/joyware/JoywareLoginModuleImpl.java
@@ -1,5 +1,7 @@
 package com.zhehekeji.web.lib.joyware;
 
+import com.sun.jna.CallbackThreadInitializer;
+import com.sun.jna.Native;
 import com.zhehekeji.web.lib.CameraControlLoginModule;
 import com.zhehekeji.web.lib.joyware.NetSDKLib.LLong;
 import com.zhehekeji.web.lib.joyware.NetSDKLib.NET_IN_LOGIN_WITH_HIGHLEVEL_SECURITY;
@@ -26,6 +28,8 @@ public class JoywareLoginModuleImpl implements CameraControlLoginModule {
 
 	private static CaptureReceiveCB captureReceiveCB = new CaptureReceiveCB();
 
+	public static CallBack.Mp4ReceiveCB mp4ReceiveCB= new CallBack.Mp4ReceiveCB();
+
 	/**
 	 * \if ENGLISH_LANG
 	 * Init
@@ -57,6 +61,9 @@ public class JoywareLoginModuleImpl implements CameraControlLoginModule {
 		netsdk.CLIENT_SetNetworkParam(netParam);
 		//todo
 		netsdk.CLIENT_SetSnapRevCallBack(captureReceiveCB,null);
+
+		Native.setCallbackThreadInitializer(mp4ReceiveCB,
+				new CallbackThreadInitializer(false, false, "downloadbytime callback thread"));
 		return true;
 	}