It uses Dynamsoft Barcode Reader to read barcodes. It is possible to read barcodes from video stream with vlcj. Java 11 and JavaFX 13 are the baseline as vlcj-javafx ...

First of all, I must confess, the application RetrievalTrainer is still not perfect, I am sorry about that. To warm up with RetrievalTrainer download the file history.xml located in project directory ...