Django With Barcode and Qrcode

For work I need to implement a strange usercase: I need to have a form with QRCode and BarCode input.

The short story: I need to read the info from a BarCode and find the book.

The long story: I need to read the barcode with a phone/tablet/something with a camera and post it in a django form. So I search on the web and find some solution.

First solution I found is a premium solution. I find the Dynamsoft   ’s tutorial   where you can build a script for read QrCode, BarCode, etc… but you need a license for your code to work. It’s an easy way IF you have the budget and I don’t have it. So I need something different. An AI?