Jaggy Cover Art

I'm using iPad for DMC with Serviio 1.1 and 1.0.1.
iPad has RATINA display so I embedded 1500x1500 pix cover art into flac. but alll DMC on iPad display jaggy cover art...
I tryed to change DMS from serviio to minidlna, I got sharp cover art!! ( but minidlna could not support to play flac...)

I wonder serviio resizing cover art, i can see debug log:
2013-01-01 22:15:20,542 DEBUG [CoverImageService] Resizing and storing cover art image
2013-01-01 22:15:20,607 DEBUG [CoverImageService] Image successfully resized

I hope to disable resizing cover art.
Do you have any ideas ?

Thans,

[zip]

THis should be implemented in future.

I'm looking forward to implement it!!

Thanks