Using MX player for streaming from NAS

Hi,

I install Kodi 16.0 in my LeTV, and I want use MX player as external player to stream video from my NAS which has a shared folder(the system is OMV). I do as HOW-TO:Use_external_players_on_Android instruct, and place the modified playercorefactory.xml into userdata fold. But when I want to play a video from Kodi, the MX player can’t be launched. I can access the video from inside ES explorer, and play the video using MX player, so the shared folder and the player are both ok. I googled and found someone said it’s because the path to the video for Kodi is SMB://path_to_video, but the MX player can only recognize //path_to_video. I also find an parameter named args which seems to do the converter in playercorefactory.xml, but it also doesn’t work.

Can anyone help me on that?

Thanks,
Alex