diff --git a/dita/RTC-NG/API/callback_playerobserver_onresolutionchanged.dita b/dita/RTC-NG/API/callback_playerobserver_onresolutionchanged.dita
index a98881a9b16..b181129b3b8 100644
--- a/dita/RTC-NG/API/callback_playerobserver_onresolutionchanged.dita
+++ b/dita/RTC-NG/API/callback_playerobserver_onresolutionchanged.dita
@@ -2,7 +2,7 @@
 <!DOCTYPE reference PUBLIC "-//OASIS//DTD DITA Reference//EN" "reference.dtd">
 <reference id="callback_onresolutionchanged">
     <title><ph keyref="onResolutionChanged"/></title>
-    <shortdesc id="short"><ph id="shortdesc"><?oxy-placeholder content="Provide a short description for this API."?></ph></shortdesc>
+    <shortdesc id="short"><ph id="shortdesc">视频分辨率发生改变回调。</ph></shortdesc>
     <prolog>
         <metadata>
             <keywords>
@@ -13,10 +13,10 @@
     <refbody>
         <section id="prototype">
             <p outputclass="codeblock">
-            <codeblock props="android" outputclass="language-java"/>
+            <codeblock props="android" outputclass="language-java">public void onResolutionChanged(int width, int height){}</codeblock>
             <codeblock props="hmos" outputclass="language-arkts"/>
-            <codeblock props="ios mac" outputclass="language-objectivec"/>
-            <codeblock props="cpp unreal" outputclass="language-cpp"/>
+            <codeblock props="ios mac" outputclass="language-objectivec">- (void)onResolutionChanged:(int)width height:(int)height;</codeblock>
+            <codeblock props="cpp unreal" outputclass="language-cpp">virtual void onResolutionChanged(int width, int height) = 0;</codeblock>
             <codeblock props="bp" outputclass="language-cpp"/>
             <codeblock props="cs" outputclass="language-csharp"/>
             <codeblock props="electron" outputclass="language-typescript"/>
@@ -28,37 +28,30 @@
             <dl outputclass="since">
             <dlentry props="native">
                 <dt>自从</dt>
-                <dd>v</dd>
+                <dd>v4.5.0</dd>
             </dlentry>
             </dl>
-            <p/>
-        </section>
-        <section id="scenario" deliveryTarget="details">
-            <title>适用场景</title>
-            <p/>
+            <p>如果你需要监控播放器所播放视频流分辨率的变化，需要在调用 <xref keyref="RegisterObserver_Player"/> 方法时注册该回调。</p>
         </section>
         <section id="timing" deliveryTarget="details">
             <title>触发时机</title>
-            <p/>
+            <p>当视频流的分辨率发生变化时，SDK 会触发该回调报告当前视频的宽高。</p>
         </section>        
         <section id="restriction" deliveryTarget="details">
             <title>使用限制</title>
-            <p/>
+            <p>无。</p>
         </section>
         <section id="parameters" deliveryTarget="details">
             <title>参数</title>
             <parml>
             <plentry>
-                <pt><?oxy-placeholder content="The name of the parameter."?></pt>
-                <pd><?oxy-placeholder content="The description of the parameter. Please specify if the parameter is optional, output, and has a default value or value range."?></pd>
+                <pt>width</pt>
+                <pd>视频帧的宽度（px）。</pd>
+            </plentry>
+            <plentry>
+                <pt>height</pt>
+                <pd>视频帧的高度（px）。</pd>
             </plentry>
             </parml> </section>
-        <section id="return_values">
-            <title><ph keyref="return-section-title"/></title>
-            <p props="flutter">方法成功调用时，无返回值；方法调用失败时，会抛出 <xref keyref="AgoraRtcException"/> 异常，你需要捕获异常并进行处理。</p>
-            <ul props="native electron unity rn unreal bp">
-                <li>0: 方法调用成功。</li>
-                <li>&lt; 0: 方法调用失败。<ph props="cn">详见<xref keyref="error-code-link"/>了解详情和解决建议。</ph></li>
-                </ul> </section>
     </refbody>
 </reference>
diff --git a/dita/RTC-NG/API/enum_rteplayerstate.dita b/dita/RTC-NG/API/enum_rteplayerstate.dita
index c3eb0f1de8e..c0f8c263517 100644
--- a/dita/RTC-NG/API/enum_rteplayerstate.dita
+++ b/dita/RTC-NG/API/enum_rteplayerstate.dita
@@ -16,8 +16,36 @@
             <title>枚举值</title>
             <parml>
                 <plentry>
-                    <pt><?oxy-placeholder content="The name of the enumerator."?></pt>
-                    <pd><?oxy-placeholder content="The description of the enumerator."?></pd>
+                    <pt><ph keyref="kRtePlayerStateIdle"/></pt>
+                    <pd>0：空闲状态。//TODO 播放器会在你打开 URL 之前和结束播放之后会报告该状态码。</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStateOpening"/></pt>
+                    <pd>1：正在打开 URL 资源。当调用 <xref keyref="OpenWithUrl"/> 后会报告该状态码。</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStateOpenCompleted"/></pt>
+                    <pd>2：成功打开 URL 资源。当调用 <xref keyref="OpenWithUrl"/> 成功打开 URL 资源后会报告该状态码。</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStatePlaying"/></pt>
+                    <pd>3：播放中。//TODO 当打开 rte url 时，订阅主播成功回调此状态。观众端调用 open 打开 url 并播放后会回调这个状态吗？</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStatePaused"/></pt>
+                    <pd>4：暂停播放。当成功调用 <xref keyref="Pause_Player"/> 后会报告该状态码。</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStatePlaybackCompleted"/></pt>
+                    <pd>5：播放完成。//TODO 当主播结束推流退出房间后，会报告该状态码。这个状态码是观众端和主播端都会报告吗？</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStateStopped"/></pt>
+                    <pd>6：停止播放。当成功调用 <xref keyref="Stop_Player"/> 后会报告该状态码。</pd>
+                </plentry>
+                <plentry>
+                    <pt><ph keyref="kRtePlayerStateFailed"/></pt>
+                    <pd>7：失败状态。当内部发生错误时会报告该状态码。</pd>
                 </plentry>
             </parml>
         </section></refbody>
diff --git a/dita/RTC-NG/API/rtc_api_data_type.dita b/dita/RTC-NG/API/rtc_api_data_type.dita
index a16725e2f2c..6435c5ccea5 100644
--- a/dita/RTC-NG/API/rtc_api_data_type.dita
+++ b/dita/RTC-NG/API/rtc_api_data_type.dita
@@ -1245,6 +1245,7 @@
             <li><xref keyref="RENDER_MODE_TYPE"/></li>
             <li><xref keyref="RHYTHM_PLAYER_REASON"/></li>
             <li><xref keyref="RHYTHM_PLAYER_STATE_TYPE"/></li>
+            <li><xref keyref="RtePlayerState"/></li>
             <li><xref keyref="RteVideoMirrorMode"/></li>
             <li><xref keyref="RteVideoRenderMode"/></li>
             <li><xref keyref="RTMP_STREAM_LIFE_CYCLE_TYPE"/></li>
diff --git a/dita/RTC-NG/RTC_NG_API_CPP.ditamap b/dita/RTC-NG/RTC_NG_API_CPP.ditamap
index a7dcabaa095..b5603c9b9d5 100644
--- a/dita/RTC-NG/RTC_NG_API_CPP.ditamap
+++ b/dita/RTC-NG/RTC_NG_API_CPP.ditamap
@@ -485,6 +485,7 @@
                 <topicref keyref="UnregisterObserver_Player" toc="no"/>
                 <topicref keyref="RegisterObserver_Rte" toc="no" props="hide"/>
                 <topicref keyref="UnregisterObserver_Rte" toc="no" props="hide"/>
+                <topicref keyref="onResolutionChanged" toc="no"/>
                 <topicref keyref="onStateChanged" toc="no"/>
             </topicref>
             <topicref href="API/toc_rhythmplayer.dita" chunk="to-content">
diff --git a/dita/RTC-NG/config/callback_playerobserver_onevent.dita b/dita/RTC-NG/config/callback_playerobserver_onevent.dita
new file mode 100644
index 00000000000..30d716bf1db
--- /dev/null
+++ b/dita/RTC-NG/config/callback_playerobserver_onevent.dita
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE reference PUBLIC "-//OASIS//DTD DITA Reference//EN" "reference.dtd">
+<reference id="callback_playerobserver_onevent">
+    <title><ph keyref="onEvent"/></title>
+    <shortdesc id="short"><ph id="shortdesc"></ph></shortdesc>
+    <prolog>
+        <metadata>
+            <keywords>
+                <indexterm keyref="onEvent"/>
+            </keywords>
+        </metadata>
+    </prolog>
+    <refbody>
+        <section id="prototype">
+            <p outputclass="codeblock">
+            <codeblock props="android" outputclass="language-java">public void onEvent(int event){}</codeblock>
+            <codeblock props="hmos" outputclass="language-arkts"/>
+            <codeblock props="ios mac" outputclass="language-objectivec">- (void)onEvent:(AgoraRtePlayerEvent)event;</codeblock>
+            <codeblock props="cpp unreal" outputclass="language-cpp">virtual void onEvent(PlayerEvent event) = 0;</codeblock>
+            <codeblock props="bp" outputclass="language-cpp"/>
+            <codeblock props="cs" outputclass="language-csharp"/>
+            <codeblock props="electron" outputclass="language-typescript"/>
+            <codeblock props="unity cs" outputclass="language-csharp"/>
+            <codeblock props="rn" outputclass="language-typescript"/>
+            <codeblock props="flutter" outputclass="language-dart"/> </p>
+        </section>
+        <section id="detailed_desc" deliveryTarget="details" otherprops="no-title">
+            <dl outputclass="since">
+            <dlentry props="native">
+                <dt>自从</dt>
+                <dd>v</dd>
+            </dlentry>
+            </dl>
+            <p/>
+        </section>
+        <section id="scenario" deliveryTarget="details">
+            <title>适用场景</title>
+            <p/>
+        </section>
+        <section id="timing" deliveryTarget="details">
+            <title>触发时机</title>
+            <p/>
+        </section>        
+        <section id="restriction" deliveryTarget="details">
+            <title>使用限制</title>
+            <p/>
+        </section>
+        <section id="parameters" deliveryTarget="details">
+            <title>参数</title>
+            <parml>
+            <plentry>
+                <pt><?oxy-placeholder content="The name of the parameter."?></pt>
+                <pd><?oxy-placeholder content="The description of the parameter. Please specify if the parameter is optional, output, and has a default value or value range."?></pd>
+            </plentry>
+            </parml> </section>
+        <section id="return_values">
+            <title><ph keyref="return-section-title"/></title>
+            <p props="flutter">方法成功调用时，无返回值；方法调用失败时，会抛出 <xref keyref="AgoraRtcException"/> 异常，你需要捕获异常并进行处理。</p>
+            <ul props="native electron unity rn unreal bp">
+                <li>0: 方法调用成功。</li>
+                <li>&lt; 0: 方法调用失败。<ph props="cn">详见<xref keyref="error-code-link"/>了解详情和解决建议。</ph></li>
+                </ul> </section>
+    </refbody>
+</reference>
diff --git a/dita/RTC-NG/config/keys-rtc-ng-api-cpp.ditamap b/dita/RTC-NG/config/keys-rtc-ng-api-cpp.ditamap
index 2e8bce5bf74..274621f114c 100644
--- a/dita/RTC-NG/config/keys-rtc-ng-api-cpp.ditamap
+++ b/dita/RTC-NG/config/keys-rtc-ng-api-cpp.ditamap
@@ -1199,6 +1199,13 @@
             </keydef>
         </topichead>
         <topichead navtitle="rte 播放器事件">
+            <keydef keys="onResolutionChanged" href="../API/callback_playerobserver_onresolutionchanged.dita">
+                <topicmeta>
+                    <keywords>
+                        <keyword>onResolutionChanged</keyword>
+                    </keywords>
+                </topicmeta>
+            </keydef>
             <keydef keys="onStateChanged" href="../API/callback_playerobserver_onstatechanged.dita">
                 <topicmeta>
                     <keywords>
@@ -11600,6 +11607,69 @@
                     <keyword>RTMP_STREAM_PUBLISH_STATE_DISCONNECTING</keyword>
                 </keywords>
             </topicmeta>
+        </keydef>
+         <keydef keys="RtePlayerState" href="../API/enum_rteplayerstate.dita">
+            <topicmeta>
+                <keywords>
+                    <keyword>RtePlayerState</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStateIdle">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStateIdle</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStateOpening">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStateOpening</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStateOpenCompleted">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStateOpenCompleted</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStatePlaying">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStatePlaying</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStatePaused">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStatePaused</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStatePlaybackCompleted">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStatePlaybackCompleted</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStateStopped">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStateStopped</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="kRtePlayerStateFailed">
+            <topicmeta>
+                <keywords>
+                    <keyword>kRtePlayerStateFailed</keyword>
+                </keywords>
+            </topicmeta>
         </keydef>
         <keydef keys="RTMP_STREAMING_EVENT" href="../API/enum_rtmpstreamingevent.dita">
             <topicmeta>
diff --git a/dita/RTC-NG/config/relations-rtc-ng-api.ditamap b/dita/RTC-NG/config/relations-rtc-ng-api.ditamap
index 0aae2d7c5eb..33c2ff9bf75 100644
--- a/dita/RTC-NG/config/relations-rtc-ng-api.ditamap
+++ b/dita/RTC-NG/config/relations-rtc-ng-api.ditamap
@@ -3350,6 +3350,7 @@
         </relrow>
         <relrow>
             <relcell>
+                <topicref keyref="onResolutionChanged"/>
                 <topicref keyref="onStateChanged"/>
             </relcell>
             <relcell>