Fountain codes are made so the receiver can pick up anywhere in a stream, and pick up the data with 0.1% to a few percent overhead (depending on luck and loss r

Fountain codes are made so the receiver can pick up anywhere in a stream, and pick up the data with 0.1% to a few percent overhead (depending on luck and loss rate). This particular implementation loops the same set of encoded packets as QR codes, but with a faster processor you’d want to generate a pseudo infinite stream of encoded packets. If your data size was 1MB with 10kb packet size, readers can decode it with any 100(+ a couple percent) packets.