ZBar is an open source software suite for reading bar codes from various sources, including webcams. As its development stopped in 2012, I took the task of keeping it updated with the V4L2 API. This is the main repository for it. There's a clone at at LinuxTV.org, and another one at gitlab.
https://github.com/mchehab/zbar/compare/0.23.92...master shows + 50 commits singe last release which was +2.5 years ago,
Do you have any plans to release new version soon? 🤔