QR Code Decoding/playback and iOS

Well, it's the engine myself... crazy.

I'm trying to implement of a QR code reader in my app, iOS (specifically for the IPhone 4). I tried THREE count em THREE different libraries and each of them does not work. THEY ALL WORK PERFECTLY IN SIMULATOR BUT DO NOT WORK ON THE MOBILE DEVICE

1. I tried zxing bar code library, which has a port to actionscript.

IPHONE 4: The application freezes (no error is thrown on the remote debugging). I tried to cut the video source so not that big of a bitmap data is processed and it freezes again! (In fact frames may be updated every 7-8 seconds)

2. I tried qr libspark decode

Works perfectly in the emulator.

IPHONE 4: Same as Zxing... freezes (no error is thrown in remote debugging).

3. someone has used library Adaptive Filter of Quasimondo extend libspark qr code library. I tried and I cut the rectangle

IPHONE 4: An error is generated (via remote debugging)-one that is not thrown in the emulator (it works perfectly in the emulator). It SEEMS (although it is not easy to study) that the error comes from the export of air support not the pbj files (pixel bender/shaderjob stuff)-is not supported the IPhone 4?

Therefore, it seems that there is a problem when you try to process bitmapdata on an IPhone... I tried different rendering modes (gpu) and it did nothing for me.

Does anyone know of all of the libraries that read QR codes? I really like to develop ios with AS3 stuff... If someone managed to use one of these libraries?

Well, if all 3 libraries fail, then maybe you do something wrong... ;-)

Probably not good news to you, but I used the library zxing on Android and BlackBerry with no problem at all.

You reduce the resolution of the camera at a reasonable level, e.g. 320 x 240 or 640 x 480? If you try to process a 5 megapixel image each cycle, which could cause a problem.

Also, take a bitmap from your video stream every second or so with a timer, then and analyzing. You may not really need to try to decode the barcode 25 a second.

Otherwise: post a snippet of code, so we can see what you're doing.

Tags: Adobe AIR

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