Well... I have got mbarcode 0.2.1-1. It works well, but I would suggest some changes.

First, why fps are changing when lens cover is closed? What kind of superfluous activity is going on when the camera is closed?

Second, could you give some delay time for the user before the scan itself so that he could understand what does the camera see? It's not necessary; but in the beginning of the scan I can hardly understand what the camera sees.

Third, does the mbarcode know what type of code it scanned? Can it say it: the barcode scanned was EAN (just an example), first three digits show that the country is ..., etc? It could be an addition for mbarcode; for instance, XML files could be used for storing information about meanings of different values of the bar-codes.

Fourth. Does mbarcode try to connect to Internet to get more information about the barcode? If yes, could it be separated into an optional extension: some people would prefer not to use it?

And, of course, performance is as important for me as it is for you. But right now the application doesn't seem to be slow.