fix segfault in zbar init, issue #1059
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@ -17,8 +17,11 @@ def scan_qr(config):
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device = config.get("video_device", "default")
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if device == 'default':
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device = ''
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proc = zbar.Processor()
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proc.init(video_device=device)
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_proc = zbar.Processor()
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_proc.init(video_device=device)
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# set global only if init did not raise an exception
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proc = _proc
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proc.visible = True
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while True:
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