1.更新MDNS广播的服务类型命名规范，防止出现多设备打开找不到MDNS的广播的问题 2.更新区分前后板的TAG

FactoryTestTool/SourceCode/Media/VideoDecoder/FocusWindow.h

@@ -0,0 +1,26 @@
+#include <QDialog>
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QPushButton>
+
+class FocusWindowDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    FocusWindowDialog(QWidget* parent = nullptr, const QSize& labelSize = QSize(480, 640)) : QDialog(parent)
+    {
+        QVBoxLayout* layout = new QVBoxLayout(this);
+        QLabel* label = new QLabel("1111 This is a new window opened by clicking the new button.", this);
+        label->setFixedSize(labelSize); // 设置QLabel的固定大小
+        layout->addWidget(label);
+
+        QPushButton* closeButton = new QPushButton("Close", this);
+        layout->addWidget(closeButton);
+        connect(closeButton, &QPushButton::clicked, this, &FocusWindowDialog::accept);
+
+        setLayout(layout);
+        setWindowTitle("SL100 视频播放窗口");
+        //resize(500, 700); // 设置对话框的大小
+    }
+};