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chgatla-microsoft / QRTracking

MRTK sample app for QRtracking
MIT License
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Double-byte character hasn't bee supported yet #35

Closed meiyg0927 closed 2 years ago

meiyg0927 commented 3 years ago

Background: We found that If the QR code includes double-byte character (e.g. Chinese, Japanese), the content can't be displayed correctly. image

Troubleshooting: This bug can be reproduced easily. I pasted a QR code picture below for your test. (The link is:
_https://rd.wechat.com/qrcode/confirm?block_type=101&content=测试&lang=zh_CN&scene=4_ ) image

We expect that it will be supported in future. Thanks!

chgatla-microsoft commented 2 years ago

The platform Qr reader is strict and follows the QR spec 2015. The pasted qrcode above does not specify the encoding mode as "utf8" (assuming it is utf8) and uses default encoding i.e. does not specify any encoding which will be interpreted as IEC 8859-1. If using encoding other than default there should be an ECI specified in the code. Other QR readers might be lenient and can try to predict the encoding so you migh be lucky to see the text. Please use a qr generator that encodes in correct standard.