Merge branch 'master' of git@codechina.csdn.net:coloreaglestdio/uhd_spectrum.git

specwidget.cpp

@@ -383,6 +383,7 @@ void specWidget::initTx()
 		run_TxIO();
 	});
 
+	m_dataproduce_ok = false;
 	read_count = m_rx_bufsz/2;
 	m_tx_points = 0;
 	//读取文件
@@ -439,13 +440,19 @@ void specWidget::initTx()
 				}
 			}
 			else
+			{
+				if (!m_dataproduce_ok)
+					m_dataproduce_ok = true;
 				QThread::msleep(10);
+			}
 		}
 		if (fIn.isOpen())
 			fIn.close();
 	});
+
 	m_readth->start();
-	QThread::msleep(1000);
+	while (!m_dataproduce_ok && ! stop_signal_called)
+		QThread::msleep(10);
 	m_txth->start();
 }
 

specwidget.h

@@ -110,6 +110,7 @@ private:
 	unsigned long long read_count;
 	std::atomic<bool> m_bSaveToFile;
 	std::atomic<bool> m_bPlayFromFile;
+	std::atomic<bool> m_dataproduce_ok;
 	QString m_strFolder;
 	QString m_strFolderPlay;
 	//stdout reader