优化amf解析

docs/flv/css/common.css

@@ -28,6 +28,7 @@ body,
 }
 
 .part-top .artplayer {
+    opacity: 0;
     width: 500px;
     height: 300px;
     background: #fff;

docs/flv/js/common.js

@@ -32,6 +32,7 @@
                     var flv = new Flv({
                         mediaElement: video,
                         url: file instanceof File ? file : url,
+                        debug: true,
                     });
 
                     this.on('destroy', () => {