The library is just a thin wrapper over the Rust qr_scanner. It allows
scanning QR codes from video streams delivered via HTTP(S). Please note
that the whole stream must be encapsulated within one HTTP response body.
Video streams delivered in multiple HTTP responses (such as HLS) won't work
with the scanner.
The wrapper expect libqr_scanner.so to be present in the system. You
can get it by building the corresponding Rust library and installing it
into the system.
import qr_scanner
for code in qr_scanner.scan('https://my.domain/video.mp4', 20):
print(code.decode('utf-8'))