TXQR (Transfer via QR) is a protocol and set of tools and libs to transfer data via animated QR codes. It uses fountain codes for error correction.
See related blog posts for more details:
Reader iOS app in the demo (uses this lib via Gomobile): https://github.com/divan/txqr-reader
Also see cmd/txqr-tester app for automated testing of different encoder parameters.
MIT