buffer v1

Decoder.py

@@ -185,7 +185,7 @@ class Decoder_main(threading.Thread):
     def run(self):
         while self.Runing:
             # 当滤波数据大于5秒时，启动滤波线程
-            if self.zmqServer.filterBuffer.GetDataLenCount() > self.device_info['sample_rate'] * 5:
+            if not self.sliding_filter.is_alive() and self.zmqServer.filterBuffer.GetDataLenCount() > self.device_info['sample_rate'] * 5:
                 algo_log("启动滤波线程", level="DEBUG")
                 self.sliding_filter.start()