diff --git a/播放url规则.md b/播放url规则.md
index 02727ec..00bbfb7 100644
--- a/播放url规则.md
+++ b/播放url规则.md
@@ -55,12 +55,18 @@ rtmp类型的流媒体源也支持`http-flv`、`websocket`直播，对应的url
 - `wss://127.0.0.1/live/0.live.flv?vhost=somedomain.com`
 
 当然，ZLMediaKit一般会把rtsp、rtmp流媒体源互相转换，也会转换成hls/http-ts/ws-ts/http-fmp4/ws-fmp4，播放的url如下：
-- HLS
+- HLS(mpegts)
   - `http://somedomain.com/live/0/hls.m3u8`
   - `https://somedomain.com/live/0/hls.m3u8`
   - `http://127.0.0.1/live/0/hls.m3u8?vhost=somedomain.com`
   - `https://127.0.0.1/live/0/hls.m3u8?vhost=somedomain.com`
 
+- HLS(fmp4)
+  - `http://somedomain.com/live/0/hls.fmp4.m3u8`
+  - `https://somedomain.com/live/0/hls.fmp4.m3u8`
+  - `http://127.0.0.1/live/0/hls.fmp4.m3u8?vhost=somedomain.com`
+  - `https://127.0.0.1/live/0/hls.fmp4.m3u8?vhost=somedomain.com`
+
 - HTTP-TS/WS-TS(后缀为.live.ts,目的是为了解决与hls的冲突)
   - `http://somedomain.com/live/0.live.ts`
   - `https://somedomain.com/live/0.live.ts`