diff --git a/QtScrcpy/device/device.cpp b/QtScrcpy/device/device.cpp
index aa0685e..88090f4 100644
--- a/QtScrcpy/device/device.cpp
+++ b/QtScrcpy/device/device.cpp
@@ -17,7 +17,7 @@ namespace qsc {
 
 Device::Device(DeviceParams params, QObject *parent) : IDevice(parent), m_params(params)
 {
-    if (!params.display && m_params.recordFileName.trimmed().isEmpty()) {
+    if (!params.display && !m_params.recordFile) {
         qCritical("not display must be recorded");
         return;
     }
@@ -48,8 +48,17 @@ Device::Device(DeviceParams params, QObject *parent) : IDevice(parent), m_params
     }, this);
 
     m_server = new Server(this);
-    if (!m_params.recordFileName.trimmed().isEmpty()) {
-        m_recorder = new Recorder(m_params.recordFileName, this);
+    if (m_params.recordFile && !m_params.recordPath.trimmed().isEmpty()) {
+        QString absFilePath;
+        QString fileDir(m_params.recordPath);
+        if (!fileDir.isEmpty()) {
+            QDateTime dateTime = QDateTime::currentDateTime();
+            QString fileName = dateTime.toString("_yyyyMMdd_hhmmss_zzz");
+            fileName = m_params.serial + fileName + "." + m_params.recordFileFormat;
+            QDir dir(fileDir);
+            absFilePath = dir.absoluteFilePath(fileName);
+        }
+        m_recorder = new Recorder(absFilePath, this);
     }
     initSignals();
 }
diff --git a/QtScrcpy/include/QtScrcpyCoreDef.h b/QtScrcpy/include/QtScrcpyCoreDef.h
index 8eb7abc..8992490 100644
--- a/QtScrcpy/include/QtScrcpyCoreDef.h
+++ b/QtScrcpy/include/QtScrcpyCoreDef.h
@@ -6,13 +6,14 @@ namespace qsc {
 struct DeviceParams {
     QString serverLocalPath = "";     // 本地安卓server路径
     QString serverRemotePath = "";    // 要推送到远端设备的server路径
-    QString recordFileName = "";      // 视频录制文件名
     QString recordPath = "";          // 视频保存路径
+    QString recordFileFormat = "mp4"; // 视频保存格式 mp4/mkv
     QString serial = "";              // 设备序列号
     quint16 localPort = 27183;        // reverse时本地监听端口
     quint16 maxSize = 720;            // 视频分辨率
     quint32 bitRate = 2000000;        // 视频比特率
     quint32 maxFps = 60;              // 视频最大帧率
+    bool recordFile = false;          // 录制到文件
     bool closeScreen = false;         // 启动时自动息屏
     bool useReverse = true;           // true:先使用adb reverse，失败后自动使用adb forward；false:直接使用adb forward
     bool display = true;              // 是否显示画面（或者仅仅后台录制）
@@ -20,7 +21,6 @@ struct DeviceParams {
     bool renderExpiredFrames = false; // 是否渲染延迟视频帧
     int lockVideoOrientation = -1;    // 是否锁定视频方向
     bool stayAwake = false;           // 是否保持唤醒
-    bool framelessWindow = false;     // 是否无边框窗口
 };
     
 }
diff --git a/QtScrcpy/ui/dialog.cpp b/QtScrcpy/ui/dialog.cpp
index 9cb37af..3d43ca6 100644
--- a/QtScrcpy/ui/dialog.cpp
+++ b/QtScrcpy/ui/dialog.cpp
@@ -265,19 +265,6 @@ void Dialog::on_startServerBtn_clicked()
 {
     outLog("start server...", false);
 
-    QString absFilePath;
-    if (ui->recordScreenCheck->isChecked()) {
-        QString fileDir(ui->recordPathEdt->text().trimmed());
-        if (!fileDir.isEmpty()) {
-            QDateTime dateTime = QDateTime::currentDateTime();
-            QString fileName = dateTime.toString("_yyyyMMdd_hhmmss_zzz");
-            QString ext = ui->formatBox->currentText().trimmed();
-            fileName = windowTitle() + fileName + "." + ext;
-            QDir dir(fileDir);
-            absFilePath = dir.absoluteFilePath(fileName);
-        }
-    }
-
     // this is ok that "native" toUshort is 0
     quint16 videoSize = ui->maxSizeBox->currentText().trimmed().toUShort();
     qsc::DeviceParams params;
@@ -286,15 +273,14 @@ void Dialog::on_startServerBtn_clicked()
     params.bitRate = getBitRate();
     // on devices with Android >= 10, the capture frame rate can be limited
     params.maxFps = static_cast<quint32>(Config::getInstance().getMaxFps());
-    params.recordFileName = absFilePath;
     params.closeScreen = ui->closeScreenCheck->isChecked();
     params.useReverse = ui->useReverseCheck->isChecked();
     params.display = !ui->notDisplayCheck->isChecked();
     params.renderExpiredFrames = Config::getInstance().getRenderExpiredFrames();
     params.lockVideoOrientation = ui->lockOrientationBox->currentIndex() - 1;
     params.stayAwake = ui->stayAwakeCheck->isChecked();
-    params.framelessWindow = ui->framelessCheck->isChecked();
     params.recordPath = ui->recordPathEdt->text().trimmed();
+    params.recordFileFormat = ui->formatBox->currentText().trimmed();
     params.serverLocalPath = getServerPath();
     params.serverRemotePath = Config::getInstance().getServerPath();