diff --git a/src/log/log.cpp b/src/log/log.cpp
deleted file mode 100644
index 7f73254..0000000
--- a/src/log/log.cpp
+++ /dev/null
@@ -1,6 +0,0 @@
-#include "log.h"
-
-int LogDummy()
-{
-    return 0;
-}
\ No newline at end of file
diff --git a/src/log/log.h b/src/log/log.h
index 12cc03d..6031589 100644
--- a/src/log/log.h
+++ b/src/log/log.h
@@ -18,20 +18,7 @@ using namespace std::chrono;
 
 #define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
 
-// SPDLOG_TRACE(...)
-// SPDLOG_DEBUG(...)
-// SPDLOG_INFO(...)
-// SPDLOG_WARN(...)
-// SPDLOG_ERROR(...)
-// SPDLOG_CRITICAL(...)
-
-#ifdef SIGNAL_LOGGER
-constexpr auto LOGGER_NAME = "siganl";
-#else
-constexpr auto LOGGER_NAME = "rtc";
-#endif
-
-int LogDummy();
+constexpr auto LOGGER_NAME = "rt";
 
 #define LOG_INFO(...)                                                         \
   if (nullptr == spdlog::get(LOGGER_NAME)) {                                  \
diff --git a/src/media/video/encode/openh264/openh264_encoder.cpp b/src/media/video/encode/openh264/openh264_encoder.cpp
index 57859ea..8c30dd1 100644
--- a/src/media/video/encode/openh264/openh264_encoder.cpp
+++ b/src/media/video/encode/openh264/openh264_encoder.cpp
@@ -29,7 +29,7 @@ void nv12ToI420(unsigned char *Src_data, int src_width, int src_height,
   int src_stride_y = src_width;
   int src_stride_uv = src_width;
 
-  // dst: buffer address of Y channelĄ˘U channel and V channel
+  // dst: buffer address of Y channel、U channel and V channel
   unsigned char *Y_data_Dst = Dst_data;
   unsigned char *U_data_Dst = Dst_data + I420_Y_Size;
   unsigned char *V_data_Dst = Dst_data + I420_Y_Size + I420_U_Size;
diff --git a/xmake.lua b/xmake.lua
index f855431..c8eeca5 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -3,7 +3,8 @@ set_version("0.0.1")
 set_license("LGPL-3.0")
 
 add_rules("mode.release", "mode.debug")
-set_languages("c++14")
+set_languages("c++17")
+set_encodings("utf-8")
 
 set_installdir("$(projectdir)/out")
 
@@ -34,7 +35,7 @@ end
 
 target("log")
     set_kind("object")
-    add_files("src/log/log.cpp")
+    add_headerfiles("src/log/log.h")
     add_includedirs("src/log", {public = true})
 
 target("common")