diff --git a/index.js b/index.js
index bdfe985..7993188 100644
--- a/index.js
+++ b/index.js
@@ -114,6 +114,13 @@ function getMimeFromUrl(u) {
     return 'image/jpeg';
 }
 
+/**
+ * 创建m3u8文件, 并返回 m3u8 路径, 如任务正在进行中则返回原视频 mp4 路径
+ */
+async function createM3u8Task(contentPath, apiData) {
+    
+}
+
 /**
  * 生成缩略图并缓存
  * @param {*} reply
@@ -372,8 +379,6 @@ async function downloadAndServe(reply, apiData, contentPath, key) {
         });
     }
 
-
-
     if (task.done && fs.existsSync(contentPath)) {
         console.log('Download completed:', key);
         if (isValidThumbSpec(apiData.data.thumb)) {
@@ -382,12 +387,10 @@ async function downloadAndServe(reply, apiData, contentPath, key) {
         return serveCompletedCache(reply, apiData, contentPath);//reply, apiData, contentPath
     }
 
-
     console.log('Downloading:', key);
     if (isValidThumbSpec(apiData.data.thumb)) {
         return generateThumbAndCache(reply, apiData, contentPath).catch(() => { });
     }
-
     // Serve growing file
     return serveGrowingFile(reply, task, apiData);
 }