if script name is amf3 encoded,save it as amf0 string

@@ -280,6 +280,11 @@ int SrsFlvSegment::write_data(SrsSharedPtrMessage* shared_data)
     char* payload = data->payload;
     int size = data->size;
     int64_t timestamp = plan->filter_timestamp(data->timestamp);
+    if( size && payload && (*payload) ==0)
+    {//convert amf3 string to amf0
+    	size --;
+    	payload ++;
+    }
     if ((ret = enc->write_metadata( timestamp , payload, size)) != ERROR_SUCCESS) {
         return ret;
     }