diff --git a/src/FFNvDecoder.cpp b/src/FFNvDecoder.cpp
index 657f46b..b9885cc 100644
--- a/src/FFNvDecoder.cpp
+++ b/src/FFNvDecoder.cpp
@@ -233,13 +233,13 @@ void FFNvDecoder::decode_thread()
 		if (stream_index == pkt->stream_index){
 			result = avcodec_send_packet(avctx, pkt);
 			if (result < 0){
-				av_log(nullptr, AV_LOG_ERROR, "Failed to send pkt: %d \n",result);
+				av_log(nullptr, AV_LOG_ERROR, "%s - Failed to send pkt: %d \n",name,result);
 				continue;
 			}
 
 			result = avcodec_receive_frame(avctx, gpuFrame);
 			if ((result == AVERROR(EAGAIN) || result == AVERROR_EOF) || result < 0){
-				av_log(nullptr, AV_LOG_ERROR, "Failed to receive frame: %d \n",result);
+				av_log(nullptr, AV_LOG_ERROR, "%s - Failed to receive frame: %d \n",name,result);
 				continue;
 			}
 
@@ -271,7 +271,7 @@ void FFNvDecoder::decode_thread()
 
 	decode_finished();
 
-	av_log(nullptr, AV_LOG_INFO, "decode thread exited. \n");
+	av_log(nullptr, AV_LOG_INFO, "%s - decode thread exited. \n",name);
 }
 
 void FFNvDecoder::decode_finished()
diff --git a/src/main.cpp b/src/main.cpp
index 7347f97..1df4833 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -94,14 +94,10 @@ int count_std = 100;
 
 static long long get_cur_time(){
     // 获取操作系统当前时间点（精确到微秒）
-    chrono::time_point<chrono::system_clock, chrono::microseconds> tpMicro
-        = chrono::time_point_cast<chrono::microseconds>(chrono::system_clock::now());
+    chrono::time_point<chrono::system_clock, chrono::milliseconds> tpMicro
+        = chrono::time_point_cast<chrono::milliseconds>(chrono::system_clock::now());
     // (微秒精度的)时间点 => (微秒精度的)时间戳
-    time_t totalMicroSeconds = tpMicro.time_since_epoch().count();
-
-	long long currentTime = ((long long)totalMicroSeconds)/1000;
-
-    return currentTime;
+    return tpMicro.time_since_epoch().count();
 }
 
 static int sum = 0;
@@ -160,6 +156,10 @@ void postDecoded0(const void * userPtr, AVFrame * gpuFrame){
     }
 }
 
+void decode_finished_cbk(const void* userPtr){
+    cout << "decode_finish timestamp: " << get_cur_time() << endl;
+}
+
 // string test_uri = "rtmp://192.168.10.56:1935/objecteye/1";
 // string test_uri = "/home/cmhu/data/output_800x480.mp4";
 // string test_uri = "/home/cmhu/data/output_1920x1080.mp4";
@@ -173,15 +173,16 @@ void createDecode(int index){
     config.name = "dec" + to_string(index);
     config.cfg.uri = test_uri;
     config.cfg.post_decoded_cbk = postDecoded;
+    config.cfg.decode_finished_cbk = decode_finished_cbk;
     config.cfg.force_tcp = true;
 
     if (index % 2 == 0)
     {
-        config.cfg.gpuid = "2";
+        config.cfg.gpuid = "0";
     }
     else
     {
-        config.cfg.gpuid = "1";
+        config.cfg.gpuid = "0";
     }
     
     FFNvDecoder* decoder = pDecManager->createDecoder(config);
@@ -253,6 +254,7 @@ int main(){
     config.name = "dec";
     config.cfg.uri = test_uri;
     config.cfg.post_decoded_cbk = postDecoded0;
+    config.cfg.decode_finished_cbk = decode_finished_cbk;
     config.cfg.force_tcp = true;
     config.cfg.gpuid = "0";
     FFNvDecoder* dec2 = pDecManager->createDecoder(config);