diff --git a/taoyao-client-android/taoyao/media/src/main/cpp/include/Room.hpp b/taoyao-client-android/taoyao/media/src/main/cpp/include/Room.hpp
index 346c3f6..b995fa7 100644
--- a/taoyao-client-android/taoyao/media/src/main/cpp/include/Room.hpp
+++ b/taoyao-client-android/taoyao/media/src/main/cpp/include/Room.hpp
@@ -8,7 +8,11 @@
 #include "sdk/android/native_api/jni/scoped_java_ref.h"
 
 #include "Log.hpp"
+#define private   public
+#define protected public
 #include "RouterCallback.hpp"
+#undef private
+#undef protected
 
 /**
  * 视频房间头文件
@@ -175,6 +179,13 @@ namespace acgist {
          * @param env JNIEnv
          */
         void closeRoom(JNIEnv* env);
+        /**
+         * 设置码率
+         *
+         * @param minBitrate 最小码率
+         * @param maxBitrate 最大码率
+         */
+        void setBitrate(int minBitrate, int maxBitrate);
     };
 
 }
\ No newline at end of file
diff --git a/taoyao-client-android/taoyao/media/src/main/cpp/webrtc/Room.cpp b/taoyao-client-android/taoyao/media/src/main/cpp/webrtc/Room.cpp
index a45c0b5..44fbc08 100644
--- a/taoyao-client-android/taoyao/media/src/main/cpp/webrtc/Room.cpp
+++ b/taoyao-client-android/taoyao/media/src/main/cpp/webrtc/Room.cpp
@@ -552,6 +552,22 @@ namespace acgist {
         this->closeRoomCallback(env);
     }
 
+    void Room::setBitrate(int minBitrate, int maxBitrate) {
+        if(
+            this->sendTransport                  == nullptr ||
+            this->sendTransport->handler         == nullptr ||
+            this->sendTransport->handler->pc     == nullptr ||
+            this->sendTransport->handler->pc->pc == nullptr
+            ) {
+            return;
+        }
+        webrtc::BitrateSettings settings;
+        settings.min_bitrate_bps = minBitrate;
+        settings.max_bitrate_bps = maxBitrate;
+        settings.start_bitrate_bps = minBitrate;
+        this->sendTransport->handler->pc->pc->SetBitrate(settings);
+    }
+
     extern "C" JNIEXPORT jlong JNICALL
     Java_com_acgist_taoyao_media_client_Room_nativeNewRoom(
         JNIEnv* env, jobject me,
diff --git a/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/utils/DateUtils.java b/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/utils/DateUtils.java
index c9fdf0f..6aa384a 100644
--- a/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/utils/DateUtils.java
+++ b/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/utils/DateUtils.java
@@ -207,7 +207,7 @@ public final class DateUtils {
      * 
      * @return 日期字符串
      */
-    public static String format(LocalDate localDate, DateStyle format) {
+    public static final String format(LocalDate localDate, DateStyle format) {
         return localDate != null && format != null ? format.getDateTimeFormatter().format(localDate) : null;
     }
     
@@ -219,7 +219,7 @@ public final class DateUtils {
      * 
      * @return 时间字符串
      */
-    public static String format(LocalTime localTime, TimeStyle format) {
+    public static final String format(LocalTime localTime, TimeStyle format) {
         return localTime != null && format != null ? format.getDateTimeFormatter().format(localTime) : null;
     }
     
@@ -231,7 +231,7 @@ public final class DateUtils {
      * 
      * @return 日期时间字符串
      */
-    public static String format(LocalDateTime localDateTime, DateTimeStyle format) {
+    public static final String format(LocalDateTime localDateTime, DateTimeStyle format) {
         return localDateTime != null && format != null ? format.getDateTimeFormatter().format(localDateTime) : null;
     }