8000 ZXing crashes out after around 9 barcodes detected · Issue #38 · creatale/node-dv · GitHub
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ZXing crashes out after around 9 barcodes detected #38

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Brigadier1-9 opened this issue Jul 7, 2016 · 0 comments
Open

ZXing crashes out after around 9 barcodes detected #38

Brigadier1-9 opened this issue Jul 7, 2016 · 0 comments

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@Brigadier1-9
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Brigadier1-9 commented Jul 7, 2016 •
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I am using node-dv to look for barcodes on automatically acquired images (jpegs). As long as there are no recognised barcodes, the code (which, essentially, loops forever as files appear) will run without a problem over thousands of images.

However, on occasion I found that node was crashing out to the shell with no error message. Testing showed that this only happened when barcodes were detected; roughly speaking after around nine detections regardless of how many images were checked (although it would vary up or down a few).

This led me directly to 'ZXing::FindCode' in zxing.cc, specifically the 'NewBuffer' on line 266. Changing it to 'CopyBuffer' stops the crash, which I assume was down to a memory leak. I can now recognise hundreds of barcodes without an issue.

I realise that the C version of ZXing is in maintenance mode only, and therefore so is the barcode functionality of Node-DV. Again, just throwing this out there to see if it helps others in the same boat.

See this commit for the change:
Brigadier1-9@b2504d6
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