Read QR Code OS X (10.10 and later)

Is there any possibility to read QR Code from an OS X (10.10 and later) with the system libraries (e.g. AVFoundation)?


I know that the AVCaptureMetadataOutput class was available just on OS X 10.9.

But is the delegate method -[AVCaptureMetadataOutputObjectsDelegate captureOutput:didOutputMetadataObjects:fromConnection:] still available? It is written in the documentation that is available on OS X 10.9 and later. How can I use it now (on OS X 10.10)?

What can be used as alternative to AVCaptureMetadataOutput?


Thanks a lot.


Lovelace

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Use Core Image's CIDetector and CIQRCodeFeature classes. They'll find and decode the information and even correct for rotation and perspective issues.


CIDetector class reference:

https://developer.apple.com/library/prerelease/mac/documentation/CoreImage/Reference/CIDetector_Ref/index.html#//apple_ref/doc/uid/TP40010974


CIQRCodeFeature class reference:

https://developer.apple.com/library/prerelease/mac/documentation/QuartzCore/Reference/CIQRCodeFeature/index.html#//apple_ref/doc/uid/TP40015088


Core Image Programming Guide:

https://developer.apple.com/library/prerelease/mac/documentation/GraphicsImaging/Conceptual/CoreImaging/ci_intro/ci_intro.html#//apple_ref/doc/uid/TP30001185-CH1-TPXREF101

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bob133
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