diff --git a/OhosVideoCache/CHANGELOG.md b/OhosVideoCache/CHANGELOG.md
index d2670f1410ec24533063ebea007c78dbd9029a82..8df24108cad17a40f130ddd632bee2cd2458c139 100644
--- a/OhosVideoCache/CHANGELOG.md
+++ b/OhosVideoCache/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 1.0.3-rc.2
+1. Optimize video caching and playback speed
+
 ## 1.0.3-rc.1
 1. Fix the issue of excessive data usage
 
diff --git a/OhosVideoCache/entry/oh-package.json5 b/OhosVideoCache/entry/oh-package.json5
index 38249189d0e200f294e5e6966fa255719b7ca00d..61b25645136926036e66133b7f1330b8bbeea163 100644
--- a/OhosVideoCache/entry/oh-package.json5
+++ b/OhosVideoCache/entry/oh-package.json5
@@ -1,6 +1,6 @@
 {
   "name": "entry",
-  "version": "1.0.3-rc.1",
+  "version": "1.0.3-rc.2",
   "description": "Please describe the basic information.",
   "main": "",
   "author": "",
diff --git a/OhosVideoCache/library/Index.ts b/OhosVideoCache/library/Index.ets
similarity index 100%
rename from OhosVideoCache/library/Index.ts
rename to OhosVideoCache/library/Index.ets
diff --git a/OhosVideoCache/library/oh-package.json5 b/OhosVideoCache/library/oh-package.json5
index a1c134c577c17467842e52bb9967c551dcb9ac4c..009f121cfcc19d3275160753da7126695f0c01ef 100644
--- a/OhosVideoCache/library/oh-package.json5
+++ b/OhosVideoCache/library/oh-package.json5
@@ -1,10 +1,10 @@
 {
   "name": "@ohos/video-cache",
-  "version": "1.0.3-rc.1",
+  "version": "1.0.3-rc.2",
   "type": "module",
   "types": "",
   "description": "OhosVideoCache allows to add caching support to your IjkPlayer/AvPlayer or any another player with help of single line!",
-  "main": "Index.ts",
+  "main": "Index.ets",
   "author": "ohos_tpc",
   "ohos": {
     "org": "opensource"
diff --git a/OhosVideoCache/library/src/main/ets/ByteArrayCache.ts b/OhosVideoCache/library/src/main/ets/ByteArrayCache.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/ByteArrayCache.ts
rename to OhosVideoCache/library/src/main/ets/ByteArrayCache.ets
diff --git a/OhosVideoCache/library/src/main/ets/ByteArraySource.ts b/OhosVideoCache/library/src/main/ets/ByteArraySource.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/ByteArraySource.ts
rename to OhosVideoCache/library/src/main/ets/ByteArraySource.ets
diff --git a/OhosVideoCache/library/src/main/ets/Cache.ts b/OhosVideoCache/library/src/main/ets/Cache.ets
similarity index 94%
rename from OhosVideoCache/library/src/main/ets/Cache.ts
rename to OhosVideoCache/library/src/main/ets/Cache.ets
index 07c5b6e29c8dd8c353925faf3b44ec1bcc647c21..c2f2aebca86c85b42673f1770cab3b08218491a1 100644
--- a/OhosVideoCache/library/src/main/ets/Cache.ts
+++ b/OhosVideoCache/library/src/main/ets/Cache.ets
@@ -20,7 +20,7 @@ export interface Cache {
 
   read(buffer: ArrayBuffer, offset: number, length: number): number;
 
-  append(data: ArrayBuffer, length: number);
+  append(data: ArrayBuffer, length: number): void;
 
   close(): Promise<void>;
 
diff --git a/OhosVideoCache/library/src/main/ets/CacheListener.ts b/OhosVideoCache/library/src/main/ets/CacheListener.ets
similarity index 96%
rename from OhosVideoCache/library/src/main/ets/CacheListener.ts
rename to OhosVideoCache/library/src/main/ets/CacheListener.ets
index 4346fda13066ca277e6e93ed796fac14fdc6346e..dd133b9ca52e404e35bd5160e14c874ab1458184 100644
--- a/OhosVideoCache/library/src/main/ets/CacheListener.ts
+++ b/OhosVideoCache/library/src/main/ets/CacheListener.ets
@@ -14,5 +14,5 @@
  */
 
 export interface CacheListener {
-  onCacheAvailable(cacheFilePath: string, url: string, percentsAvailable: number);
+  onCacheAvailable(cacheFilePath: string, url: string, percentsAvailable: number): void;
 }
\ No newline at end of file
diff --git a/OhosVideoCache/library/src/main/ets/Config.ts b/OhosVideoCache/library/src/main/ets/Config.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/Config.ts
rename to OhosVideoCache/library/src/main/ets/Config.ets
diff --git a/OhosVideoCache/library/src/main/ets/GetRequest.ts b/OhosVideoCache/library/src/main/ets/GetRequest.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/GetRequest.ts
rename to OhosVideoCache/library/src/main/ets/GetRequest.ets
diff --git a/OhosVideoCache/library/src/main/ets/HttpProxyCache.ts b/OhosVideoCache/library/src/main/ets/HttpProxyCache.ets
similarity index 97%
rename from OhosVideoCache/library/src/main/ets/HttpProxyCache.ts
rename to OhosVideoCache/library/src/main/ets/HttpProxyCache.ets
index 4457f6723359c08293dd15afa76228a65cb320e6..7960c2b02f63f854695a62f95abd1c6509f337f6 100644
--- a/OhosVideoCache/library/src/main/ets/HttpProxyCache.ts
+++ b/OhosVideoCache/library/src/main/ets/HttpProxyCache.ets
@@ -121,7 +121,7 @@ export default class HttpProxyCache extends ProxyCache {
     }
     const ctx = this;
     await new Promise<void>((resolve, reject) => {
-      let newSourceNoCache = new HttpUrlSource([this.source]);
+      let newSourceNoCache = new HttpUrlSource([this.source], true);
       try {
         class TempDataBackListener implements DataBackListener {
           onDataEnd() {
@@ -135,6 +135,10 @@ export default class HttpProxyCache extends ProxyCache {
 
           onDataReceive(data: ArrayBuffer) {
             ctx.receiveSize += data.byteLength;
+            if (ctx.stopped) {
+              newSourceNoCache.close();
+              return;
+            }
             let msg: socket.TCPSendOptions = {
               data: data
             }
diff --git a/OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ts b/OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ets
similarity index 97%
rename from OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ts
rename to OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ets
index 14200123256b2358dd07e409d77491da986398f5..5ef121e5822f72aadb96a99f7c5d17f45199954a 100644
--- a/OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ts
+++ b/OhosVideoCache/library/src/main/ets/HttpProxyCacheServer.ets
@@ -94,8 +94,7 @@ export default class HttpProxyCacheServer {
       this.serverSocket?.on("connect", async (clientSocket: socket.TCPSocketConnection) => {
         clientSocket?.on("message", (data: MessageCallBackBean) => {
           if (data && data.message) {
-            let info = buffer.from(data.message).toString();
-            self.processSocket(info, clientSocket)
+            self.processSocket(data.message, clientSocket)
           }
         })
         clientSocket?.on("error", (err: Error) => {
@@ -118,10 +117,10 @@ export default class HttpProxyCacheServer {
     }
   }
 
-  async processSocket(requestInfo: string, severConnect: socket.TCPSocketConnection) {
+  async processSocket(requestInfo: ArrayBuffer, severConnect: socket.TCPSocketConnection) {
     let self = this;
     try {
-      let request = GetRequest.read(buffer.from(requestInfo).buffer);
+      let request = GetRequest.read(requestInfo);
       let url = ProxyCacheUtils.decode(request.uri);
       if (self.pinger && self.pinger.isPingRequest(url)) {
         await self.pinger?.responseToPing(severConnect);
@@ -336,7 +335,7 @@ export default class HttpProxyCacheServer {
     this.closeSocket(severConnect, isCloseByClient);
   }
 
-  private closeSocket(severConnect: socket.TCPSocketConnection, isCloseByClient: boolean): void {
+  private closeSocket(severConnect: socket.TCPSocketConnection | null, isCloseByClient: boolean): void {
     // 客户端主动断开连接的情况下 不做处理 否则可能将正在执行的其他连接断开
     try {
       // 暂不处理 该方法关闭可能会关掉当前传输数据的severConnect而不是已经不再使用的severConnect 改为在HttpProxyCache里面关闭。
diff --git a/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ts b/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ets
similarity index 92%
rename from OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ts
rename to OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ets
index ba563037f3abd4619df0b8d7a79db72759d905c4..e0fe58881303eeb78dbe2b916ec1d7ad1e80f221 100644
--- a/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ts
+++ b/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerBuilder.ets
@@ -29,11 +29,11 @@ import SourceInfoStorageFactory from './sourcestorage/SourceInfoStorageFactory';
 import StorageUtils from './StorageUtils';
 export default class HttpProxyCacheServerBuilder {
   private DEFAULT_MAX_SIZE: number = 512 * 1024 * 1024;
-  private cacheRoot: string;
-  private fileNameGenerator: FileNameGenerator;
-  private diskUsage: DiskUsage;
-  private sourceInfoStorage: SourceInfoStorage;
-  private headerInjector: HeaderInjector;
+  private cacheRoot: string = '';
+  private fileNameGenerator: FileNameGenerator | undefined = undefined;
+  private diskUsage: DiskUsage | undefined = undefined;
+  private sourceInfoStorage: SourceInfoStorage | undefined = undefined;
+  private headerInjector: HeaderInjector | undefined = undefined;
   private context: Context;
 
   public constructor(context: Context) {
@@ -147,6 +147,6 @@ export default class HttpProxyCacheServerBuilder {
   }
 
   public buildConfig(): Config {
-    return new Config(this.cacheRoot, this.fileNameGenerator, this.diskUsage, this.sourceInfoStorage, this.headerInjector);
+    return new Config(this.cacheRoot, this.fileNameGenerator!, this.diskUsage!, this.sourceInfoStorage!, this.headerInjector!);
   }
 }
\ No newline at end of file
diff --git a/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerClients.ts b/OhosVideoCache/library/src/main/ets/HttpProxyCacheServerClients.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/HttpProxyCacheServerClients.ts
rename to OhosVideoCache/library/src/main/ets/HttpProxyCacheServerClients.ets
diff --git a/OhosVideoCache/library/src/main/ets/HttpUrlSource.ts b/OhosVideoCache/library/src/main/ets/HttpUrlSource.ets
similarity index 89%
rename from OhosVideoCache/library/src/main/ets/HttpUrlSource.ts
rename to OhosVideoCache/library/src/main/ets/HttpUrlSource.ets
index 48a8e7c98f7f9cceb8eb17d75242294027823364..85c854f38793f8e3d0710ccddbdfcb16f8bfc53f 100644
--- a/OhosVideoCache/library/src/main/ets/HttpUrlSource.ts
+++ b/OhosVideoCache/library/src/main/ets/HttpUrlSource.ets
@@ -38,15 +38,15 @@ export default class HttpUrlSource implements Source {
   private connection: http.HttpRequest | null = null;
   private callBack: DataBackListener | null = null;
   private isInitFinish: boolean = false;
+  private interId: number = (0 - Number.MAX_VALUE);
+  private lastLocation: string = '';
   private isHeaderDealFinish: boolean = false;
   private isDataFinish: boolean = false;
   private cacheData: Queue<ArrayBuffer> = new Queue();
-  private interId: number = (0 - Number.MAX_VALUE);
-  private lastLocation: string = '';
-
   // private inputStream: InputStream;
+  private useInterVal: boolean = false;
 
-  constructor(args: string | Array<string | Object>) {
+  constructor(args: string | Array<string | ESObject>, useInterVal?: boolean) {
     if (!args || args.length < 1) {
       throw new Error('params can not be null')
     }
@@ -120,25 +120,28 @@ export default class HttpUrlSource implements Source {
       self.notifyInitFinish()
     }
 
-    self.interId = setInterval(() => {
-      if (!self.callBack) {
-        return;
-      }
-      if (!self.isHeaderDealFinish) {
-        return
-      }
-      if (self?.sourceInfo?.url?.indexOf('ping') != -1) {
-        return;
-      }
-      if (self?.cacheData?.length > 0) {
-        self?.callBack?.onDataReceive(self?.cacheData?.pop())
-      } else {
-        if (self.isDataFinish) {
-          self.isHeaderDealFinish = false;
-          self.callBack?.onDataEnd()
+    if (useInterVal) {
+      this.useInterVal = true;
+      self.interId = setInterval(() => {
+        if (!self.callBack) {
+          return;
         }
-      }
-    }, 20)
+        if (!self.isHeaderDealFinish) {
+          return
+        }
+        if (self?.sourceInfo?.url?.indexOf('ping') != -1) {
+          return;
+        }
+        if (self?.cacheData?.length > 0) {
+          self?.callBack?.onDataReceive(self?.cacheData?.pop())
+        } else {
+          if (self.isDataFinish) {
+            self.isHeaderDealFinish = false;
+            self.callBack?.onDataEnd()
+          }
+        }
+      }, 20)
+    }
   }
 
   notifyInitFinish() {
@@ -151,12 +154,16 @@ export default class HttpUrlSource implements Source {
 
   close(): void {
     try {
-      this.cacheData = new Queue();
+      if(this.useInterVal){
+        this.cacheData = new Queue();
+      }
       if (this.interId != 0 - Number.MAX_VALUE) {
         clearInterval(this.interId)
       }
       emitter.off(VideoCacheConstant.HTTP_URL_SOURCE_READY_ID)
-      this.isHeaderDealFinish = false;
+      if(this.useInterVal){
+        this.isHeaderDealFinish = false;
+      }
       this.connection?.off('headersReceive');
       this.connection?.off('dataReceive');
       this.connection?.off('dataReceiveProgress');
@@ -188,7 +195,7 @@ export default class HttpUrlSource implements Source {
       await this.fetchContentInfo();
     }
     return new Promise((resolve, reject) => {
-      resolve(this.sourceInfo?.length)
+      resolve(this.sourceInfo?.length?? -1);
     });
   }
 
@@ -209,8 +216,10 @@ export default class HttpUrlSource implements Source {
 
   async open(offset: number): Promise<void> {
     const self = this
-    self.isHeaderDealFinish = false;
-    self.isDataFinish = false;
+    if (this.useInterVal) {
+      self.isHeaderDealFinish = false;
+      self.isDataFinish = false;
+    }
     await self.checkInit()
     try {
       return new Promise<void>(async (resolve, reject) => {
@@ -237,14 +246,20 @@ export default class HttpUrlSource implements Source {
               await self.sourceInfoStorage?.put(self.sourceInfo!.url, self.sourceInfo);
               self?.callBack?.onDataStart();
             }
-            self.isHeaderDealFinish = true;
+            if (this.useInterVal) {
+              self.isHeaderDealFinish = true;
+            }
           }
         })
         self.connection?.on('dataReceive', (data: ArrayBuffer) => {
           if (self?.sourceInfo?.url?.indexOf('ping') != -1) {
             self?.callBack?.onDataReceive(data);
           } else {
-            self?.cacheData?.add(data);
+            if (this.useInterVal) {
+              self?.cacheData?.add(data);
+            } else {
+              self?.callBack?.onDataReceive(data);
+            }
           }
         })
         self.connection?.on('dataReceiveProgress', (progress: ProgressValue) => {
@@ -253,19 +268,27 @@ export default class HttpUrlSource implements Source {
         self.connection!!.on('dataEnd', () => {
           if (self?.sourceInfo?.url?.indexOf('ping') != -1) {
             self?.callBack?.onDataEnd();
-          } else if (self?.cacheData?.length > 1) {
-            self.isDataFinish = true;
+          } else {
+            if (this.useInterVal && self?.cacheData?.length > 1) {
+              self.isDataFinish = true;
+            } else {
+              self.callBack?.onDataEnd();
+            }
           }
         })
         let option: http.HttpRequestOptions = self.initRequestParam(offset, -1)
-        self.cacheData = new Queue();
+        if (this.useInterVal) {
+          self.cacheData = new Queue();
+        }
         await self.connection?.requestInStream(self.sourceInfo!!.url, option)
         return resolve()
       })
 
 
     } catch (err) {
-      self.isHeaderDealFinish = false;
+      if (this.useInterVal) {
+        self.isHeaderDealFinish = false;
+      }
       self.connection?.destroy()
       return new Promise<void>((resolve, reject) => {
         return reject(new ProxyCacheException("Error opening connection for " + self.sourceInfo!!.url + " with offset " + offset + err.message))
@@ -309,7 +332,9 @@ export default class HttpUrlSource implements Source {
         let option = self.initRequestParam(0, 10000)
         urlConnection.requestInStream(self.sourceInfo!!.url, option)
       })
-      urlConnection?.destroy();
+      if(urlConnection !== null){
+        (urlConnection as http.HttpRequest).destroy();
+      }
       return Promise.resolve();
     } catch (err) {
       console.error("Error fetching info from " + self.sourceInfo!!.url + err.message);
@@ -419,6 +444,6 @@ export default class HttpUrlSource implements Source {
   }
 
   public toString(): string {
-    return "HttpUrlSource{sourceInfo='" + this.sourceInfo.toString() + "}";
+    return "HttpUrlSource{sourceInfo='" + this.sourceInfo?.toString() + "}";
   }
 }
\ No newline at end of file
diff --git a/OhosVideoCache/library/src/main/ets/IgnoreHostProxySelector.ts b/OhosVideoCache/library/src/main/ets/IgnoreHostProxySelector.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/IgnoreHostProxySelector.ts
rename to OhosVideoCache/library/src/main/ets/IgnoreHostProxySelector.ets
diff --git a/OhosVideoCache/library/src/main/ets/InterruptedProxyCacheException.ts b/OhosVideoCache/library/src/main/ets/InterruptedProxyCacheException.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/InterruptedProxyCacheException.ts
rename to OhosVideoCache/library/src/main/ets/InterruptedProxyCacheException.ets
diff --git a/OhosVideoCache/library/src/main/ets/MimeUtils.ts b/OhosVideoCache/library/src/main/ets/MimeUtils.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/MimeUtils.ts
rename to OhosVideoCache/library/src/main/ets/MimeUtils.ets
diff --git a/OhosVideoCache/library/src/main/ets/Pinger.ts b/OhosVideoCache/library/src/main/ets/Pinger.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/Pinger.ts
rename to OhosVideoCache/library/src/main/ets/Pinger.ets
diff --git a/OhosVideoCache/library/src/main/ets/Preconditions.ts b/OhosVideoCache/library/src/main/ets/Preconditions.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/Preconditions.ts
rename to OhosVideoCache/library/src/main/ets/Preconditions.ets
diff --git a/OhosVideoCache/library/src/main/ets/ProxyCache.ts b/OhosVideoCache/library/src/main/ets/ProxyCache.ets
similarity index 95%
rename from OhosVideoCache/library/src/main/ets/ProxyCache.ts
rename to OhosVideoCache/library/src/main/ets/ProxyCache.ets
index 60bbc99f41368ad81e2ad689256747946ecfcbd5..5c8030b0c35f2c878bb1031d79ab9b387599df40 100644
--- a/OhosVideoCache/library/src/main/ets/ProxyCache.ts
+++ b/OhosVideoCache/library/src/main/ets/ProxyCache.ets
@@ -46,17 +46,18 @@ export default class ProxyCache {
     }
     let self = this;
     let lastAvailable: number = - 1;
-    while (!self.cache.isCompleted() && self.cache.available() < (offset + length) && !self.stopped) {
+
+    while (self.cache && !self.cache.isCompleted() && self.cache.available() < (offset + length) && !self.stopped) {
       this.readSourceAsync();
       await self.waitForSourceData();
       self.checkReadSourceErrorsCount();
       if(self.cache?.available() == lastAvailable) {
         this.tryComplete();
       } else {
-        lastAvailable = self.cache?.available();
+        lastAvailable = self.cache?.available() ?? -1;
       }
     }
-    return new Promise<number>((resolve, reject) => {
+    return new Promise<number>(async (resolve, reject) => {
       let read = self.cache?.read(buffer, offset, length);
       if (self.cache?.isCompleted() && self.percentsAvailable != 100) {
         self.percentsAvailable = 100;
@@ -65,7 +66,7 @@ export default class ProxyCache {
       if (self.stopped) {
         return resolve(-1);
       } else {
-        return resolve(read);
+        return resolve(read?? -1);
       }
     })
   }
@@ -115,7 +116,7 @@ export default class ProxyCache {
           self.timeoutId = (0 - Number.MAX_VALUE)
           return resolve()
         }
-      }, 1000)
+      }, 200)
     })
   }
 
@@ -159,7 +160,7 @@ export default class ProxyCache {
         }
 
         async onDataStart() {
-          sourceAvailable = await self?.source?.length();
+          sourceAvailable = await self?.source?.length()?? -1;
           self.setFileLength(sourceAvailable);
         }
 
diff --git a/OhosVideoCache/library/src/main/ets/ProxyCacheException.ts b/OhosVideoCache/library/src/main/ets/ProxyCacheException.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/ProxyCacheException.ts
rename to OhosVideoCache/library/src/main/ets/ProxyCacheException.ets
diff --git a/OhosVideoCache/library/src/main/ets/ProxyCacheUtils.ts b/OhosVideoCache/library/src/main/ets/ProxyCacheUtils.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/ProxyCacheUtils.ts
rename to OhosVideoCache/library/src/main/ets/ProxyCacheUtils.ets
diff --git a/OhosVideoCache/library/src/main/ets/Source.ts b/OhosVideoCache/library/src/main/ets/Source.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/Source.ts
rename to OhosVideoCache/library/src/main/ets/Source.ets
diff --git a/OhosVideoCache/library/src/main/ets/SourceInfo.ts b/OhosVideoCache/library/src/main/ets/SourceInfo.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/SourceInfo.ts
rename to OhosVideoCache/library/src/main/ets/SourceInfo.ets
diff --git a/OhosVideoCache/library/src/main/ets/StorageUtils.ts b/OhosVideoCache/library/src/main/ets/StorageUtils.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/StorageUtils.ts
rename to OhosVideoCache/library/src/main/ets/StorageUtils.ets
diff --git a/OhosVideoCache/library/src/main/ets/bean/CacheFileBean.ts b/OhosVideoCache/library/src/main/ets/bean/CacheFileBean.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/bean/CacheFileBean.ts
rename to OhosVideoCache/library/src/main/ets/bean/CacheFileBean.ets
diff --git a/OhosVideoCache/library/src/main/ets/bean/MessageCallBackBean.ts b/OhosVideoCache/library/src/main/ets/bean/MessageCallBackBean.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/bean/MessageCallBackBean.ts
rename to OhosVideoCache/library/src/main/ets/bean/MessageCallBackBean.ets
diff --git a/OhosVideoCache/library/src/main/ets/bean/MyHeader.ts b/OhosVideoCache/library/src/main/ets/bean/MyHeader.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/bean/MyHeader.ts
rename to OhosVideoCache/library/src/main/ets/bean/MyHeader.ets
diff --git a/OhosVideoCache/library/src/main/ets/bean/ProgressValue.ts b/OhosVideoCache/library/src/main/ets/bean/ProgressValue.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/bean/ProgressValue.ts
rename to OhosVideoCache/library/src/main/ets/bean/ProgressValue.ets
diff --git a/OhosVideoCache/library/src/main/ets/constant/VideoCacheConstant.ts b/OhosVideoCache/library/src/main/ets/constant/VideoCacheConstant.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/constant/VideoCacheConstant.ts
rename to OhosVideoCache/library/src/main/ets/constant/VideoCacheConstant.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/DiskUsage.ts b/OhosVideoCache/library/src/main/ets/file/DiskUsage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/DiskUsage.ts
rename to OhosVideoCache/library/src/main/ets/file/DiskUsage.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/FileCache.ts b/OhosVideoCache/library/src/main/ets/file/FileCache.ets
similarity index 97%
rename from OhosVideoCache/library/src/main/ets/file/FileCache.ts
rename to OhosVideoCache/library/src/main/ets/file/FileCache.ets
index 974f1897250fd85711ba3ad19628b228839deffe..279b7c5d8ab0a7574037c37c1360258bc30f50a8 100644
--- a/OhosVideoCache/library/src/main/ets/file/FileCache.ts
+++ b/OhosVideoCache/library/src/main/ets/file/FileCache.ets
@@ -75,6 +75,9 @@ export default class FileCache implements Cache {
         return;
       }
       self.isRenamedEnd = false;
+      if(!self.dataFile){
+        return;
+      }
       fs.fsyncSync(self.dataFile.fd);
       fs.closeSync(self.dataFile.fd);
       fs.renameSync(this.tempFilePath, this.trueFilePath);
@@ -122,6 +125,9 @@ export default class FileCache implements Cache {
           })
         })
       }
+      if(!this.dataFile) {
+        return;
+      }
       emitter.off(VideoCacheConstant.RENAME_FINISH_ID)
       fs.fsyncSync(this.dataFile.fd)
       fs.closeSync(this.dataFile.fd)
@@ -141,9 +147,8 @@ export default class FileCache implements Cache {
         return
       }
 
-      this.dataFile?.write(fileData).then(() => {
-        fs.fsync(this.dataFile?.fd)
-      })
+      this.dataFile?.writeSync(fileData);
+      fs.fsyncSync(this.dataFile?.fd);
 
     } catch (e) {
       let format = `Error writing ${length} bytes to ${this.tempFilePath}from buffer with size ${fileData.byteLength},reason is : ${e.message}`;
diff --git a/OhosVideoCache/library/src/main/ets/file/FileNameGenerator.ts b/OhosVideoCache/library/src/main/ets/file/FileNameGenerator.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/FileNameGenerator.ts
rename to OhosVideoCache/library/src/main/ets/file/FileNameGenerator.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/Files.ts b/OhosVideoCache/library/src/main/ets/file/Files.ets
similarity index 99%
rename from OhosVideoCache/library/src/main/ets/file/Files.ts
rename to OhosVideoCache/library/src/main/ets/file/Files.ets
index d3509b57089933c7ceafc4d558fecf51d7f266f9..01886968ce235b852a2d581f137178ebfc921d24 100644
--- a/OhosVideoCache/library/src/main/ets/file/Files.ts
+++ b/OhosVideoCache/library/src/main/ets/file/Files.ets
@@ -1,4 +1,3 @@
-// @ts-nocheck
 /*
  * Copyright (C) 2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/OhosVideoCache/library/src/main/ets/file/ListFileOption.ts b/OhosVideoCache/library/src/main/ets/file/ListFileOption.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/ListFileOption.ts
rename to OhosVideoCache/library/src/main/ets/file/ListFileOption.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ts b/OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ets
similarity index 99%
rename from OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ts
rename to OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ets
index 8a1de4e14f51e0433b443ff2fa9161888a62ae3e..adb1d030bf2d23fd810046073e4720f7e20b1a25 100644
--- a/OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ts
+++ b/OhosVideoCache/library/src/main/ets/file/LruDiskUsage.ets
@@ -1,4 +1,3 @@
-// @ts-nocheck
 /*
  * Copyright (C) 2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/OhosVideoCache/library/src/main/ets/file/Md5FileNameGenerator.ts b/OhosVideoCache/library/src/main/ets/file/Md5FileNameGenerator.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/Md5FileNameGenerator.ts
rename to OhosVideoCache/library/src/main/ets/file/Md5FileNameGenerator.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/TotalCountLruDiskUsage.ts b/OhosVideoCache/library/src/main/ets/file/TotalCountLruDiskUsage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/TotalCountLruDiskUsage.ts
rename to OhosVideoCache/library/src/main/ets/file/TotalCountLruDiskUsage.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/TotalSizeLruDiskUsage.ts b/OhosVideoCache/library/src/main/ets/file/TotalSizeLruDiskUsage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/TotalSizeLruDiskUsage.ts
rename to OhosVideoCache/library/src/main/ets/file/TotalSizeLruDiskUsage.ets
diff --git a/OhosVideoCache/library/src/main/ets/file/UnlimitedDiskUsage.ts b/OhosVideoCache/library/src/main/ets/file/UnlimitedDiskUsage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/file/UnlimitedDiskUsage.ts
rename to OhosVideoCache/library/src/main/ets/file/UnlimitedDiskUsage.ets
diff --git a/OhosVideoCache/library/src/main/ets/headers/EmptyHeadersInjector.ts b/OhosVideoCache/library/src/main/ets/headers/EmptyHeadersInjector.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/headers/EmptyHeadersInjector.ts
rename to OhosVideoCache/library/src/main/ets/headers/EmptyHeadersInjector.ets
diff --git a/OhosVideoCache/library/src/main/ets/headers/HeaderInjector.ts b/OhosVideoCache/library/src/main/ets/headers/HeaderInjector.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/headers/HeaderInjector.ts
rename to OhosVideoCache/library/src/main/ets/headers/HeaderInjector.ets
diff --git a/OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ts b/OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ets
similarity index 97%
rename from OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ts
rename to OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ets
index e9689215f676a1363b65865ee6251a5d17fdd3d2..fac2918dcecf7c27290b00eecc9a6c60c5112cf6 100644
--- a/OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ts
+++ b/OhosVideoCache/library/src/main/ets/interfaces/AutoCloseable.ets
@@ -14,5 +14,5 @@
  */
 
 export default interface AutoCloseable {
-  close()
+  close(): void;
 }
\ No newline at end of file
diff --git a/OhosVideoCache/library/src/main/ets/interfaces/Callable.ts b/OhosVideoCache/library/src/main/ets/interfaces/Callable.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/interfaces/Callable.ts
rename to OhosVideoCache/library/src/main/ets/interfaces/Callable.ets
diff --git a/OhosVideoCache/library/src/main/ets/interfaces/Closeable.ts b/OhosVideoCache/library/src/main/ets/interfaces/Closeable.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/interfaces/Closeable.ts
rename to OhosVideoCache/library/src/main/ets/interfaces/Closeable.ets
diff --git a/OhosVideoCache/library/src/main/ets/interfaces/DataBackListener.ts b/OhosVideoCache/library/src/main/ets/interfaces/DataBackListener.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/interfaces/DataBackListener.ts
rename to OhosVideoCache/library/src/main/ets/interfaces/DataBackListener.ets
diff --git a/OhosVideoCache/library/src/main/ets/sourcestorage/DatabaseSourceInfoStorage.ts b/OhosVideoCache/library/src/main/ets/sourcestorage/DatabaseSourceInfoStorage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/sourcestorage/DatabaseSourceInfoStorage.ts
rename to OhosVideoCache/library/src/main/ets/sourcestorage/DatabaseSourceInfoStorage.ets
diff --git a/OhosVideoCache/library/src/main/ets/sourcestorage/NoSourceInfoStorage.ts b/OhosVideoCache/library/src/main/ets/sourcestorage/NoSourceInfoStorage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/sourcestorage/NoSourceInfoStorage.ts
rename to OhosVideoCache/library/src/main/ets/sourcestorage/NoSourceInfoStorage.ets
diff --git a/OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorage.ts b/OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorage.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorage.ts
rename to OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorage.ets
diff --git a/OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorageFactory.ts b/OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorageFactory.ets
similarity index 100%
rename from OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorageFactory.ts
rename to OhosVideoCache/library/src/main/ets/sourcestorage/SourceInfoStorageFactory.ets
diff --git a/OhosVideoCache/oh-package.json5 b/OhosVideoCache/oh-package.json5
index 0cea5eca1e29c37667fa32f9695e83014ed7e3ae..374dcd0f158da3e5e1ad2dbe75aa5e8090587fbb 100644
--- a/OhosVideoCache/oh-package.json5
+++ b/OhosVideoCache/oh-package.json5
@@ -1,6 +1,6 @@
 {
   "name": "ohosvideocache",
-  "version": "1.0.3-rc.1",
+  "version": "1.0.3-rc.2",
   "description": "Please describe the basic information.",
   "main": "",
   "author": "",