diff --git a/QtScrcpy/device/server/server.cpp b/QtScrcpy/device/server/server.cpp
index 756da4b..1343b33 100644
--- a/QtScrcpy/device/server/server.cpp
+++ b/QtScrcpy/device/server/server.cpp
@@ -142,18 +142,18 @@ bool Server::execute()
         args << "/"; // unused;
     args << "com.genymobile.scrcpy.Server";
     args << Config::getInstance().getServerVersion();
-    args << QString("log_level=%1").arg(Config::getInstance().getLogLevel());
+
+    if (!Config::getInstance().getLogLevel().isEmpty()) {
+        args << QString("log_level=%1").arg(Config::getInstance().getLogLevel());
+    }
     args << QString("max_size=%1").arg(QString::number(m_params.maxSize));
     args << QString("bit_rate=%1").arg(QString::number(m_params.bitRate));
     args << QString("max_fps=%1").arg(QString::number(m_params.maxFps));
     args << QString("lock_video_orientation=%1").arg(QString::number(m_params.lockVideoOrientation));
     args << QString("tunnel_forward=%1").arg((m_tunnelForward ? "true" : "false"));
-    if (m_params.crop.isEmpty()) {
-        args << "crop=";
-    } else {
+    if (!m_params.crop.isEmpty()) {
         args << QString("crop=%1").arg(m_params.crop);
     }
-    args << "send_frame_meta=true"; // always send frame meta (packet boundaries + timestamp)
     args << QString("control=%1").arg((m_params.control ? "true" : "false"));
     args << "display_id=0";                                     // display id
     args << "show_touches=false";                                 // show touch
@@ -161,8 +161,12 @@ bool Server::execute()
     // code option
     // https://github.com/Genymobile/scrcpy/commit/080a4ee3654a9b7e96c8ffe37474b5c21c02852a
     // <https://d.android.com/reference/android/media/MediaFormat>
-    args << QString("codec_options=%1").arg(Config::getInstance().getCodecOptions());
-    args << QString("encoder_name=%1").arg(Config::getInstance().getCodecName());
+    if (Config::getInstance().getCodecOptions() != "") {
+        args << QString("codec_options=%1").arg(Config::getInstance().getCodecOptions());
+    }
+    if (Config::getInstance().getCodecName() != "") {
+        args << QString("encoder_name=%1").arg(Config::getInstance().getCodecName());
+    }
 
 #ifdef SERVER_DEBUGGER
     qInfo("Server debugger waiting for a client on device port " SERVER_DEBUGGER_PORT "...");
diff --git a/QtScrcpy/main.cpp b/QtScrcpy/main.cpp
index 9295805..31b501d 100644
--- a/QtScrcpy/main.cpp
+++ b/QtScrcpy/main.cpp
@@ -23,21 +23,21 @@ int main(int argc, char *argv[])
 {
     // set env
 #ifdef Q_OS_WIN32
-    qputenv("QTSCRCPY_ADB_PATH", "../../../../third_party/adb/win/adb.exe");
-    qputenv("QTSCRCPY_SERVER_PATH", "../../../../third_party/scrcpy-server");
-    qputenv("QTSCRCPY_KEYMAP_PATH", "../../../../keymap");
-    qputenv("QTSCRCPY_CONFIG_PATH", "../../../../config");
+    qputenv("QTSCRCPY_ADB_PATH", "../../../third_party/adb/win/adb.exe");
+    qputenv("QTSCRCPY_SERVER_PATH", "../../../third_party/scrcpy-server");
+    qputenv("QTSCRCPY_KEYMAP_PATH", "../../../keymap");
+    qputenv("QTSCRCPY_CONFIG_PATH", "../../../config");
 #endif
 
 #ifdef Q_OS_OSX
-    qputenv("QTSCRCPY_KEYMAP_PATH", "../../../../../../keymap");
+    qputenv("QTSCRCPY_KEYMAP_PATH", "../../../../../keymap");
 #endif
 
 #ifdef Q_OS_LINUX
-    qputenv("QTSCRCPY_ADB_PATH", "../../../third_party/adb/linux/adb");
-    qputenv("QTSCRCPY_SERVER_PATH", "../../../third_party/scrcpy-server");
-    qputenv("QTSCRCPY_CONFIG_PATH", "../../../config");
-    qputenv("QTSCRCPY_KEYMAP_PATH", "../../../keymap");
+    qputenv("QTSCRCPY_ADB_PATH", "../../third_party/adb/linux/adb");
+    qputenv("QTSCRCPY_SERVER_PATH", "../../third_party/scrcpy-server");
+    qputenv("QTSCRCPY_CONFIG_PATH", "../../config");
+    qputenv("QTSCRCPY_KEYMAP_PATH", "../../keymap");
 #endif
 
     g_msgType = covertLogLevel(Config::getInstance().getLogLevel());
diff --git a/config/config.ini b/config/config.ini
index 7f61934..3a73dcd 100644
--- a/config/config.ini
+++ b/config/config.ini
@@ -15,13 +15,13 @@ ServerVersion=1.21
 ServerPath=/data/local/tmp/scrcpy-server.jar
 # 自定义adb路径，例如D:/android/tools/adb.exe
 AdbPath=
-# 编码选项 "-"表示默认
+# 编码选项 ""表示默认
 # 例如 CodecOptions="profile=1,level=2"
 # 更多编码选项参考 https://d.android.com/reference/android/media/MediaFormat
 CodecOptions=""
-# 指定编码器名称，必须是H.264编码器
+# 指定编码器名称(必须是H.264编码器)，""表示默认
 # 例如 CodecName="OMX.qcom.video.encoder.avc"
-CodecName="OMX.qcom.video.encoder.avc"
+CodecName=""
 
 # Set the log level (debug, info, warn, error)
 LogLevel=info