ios7 AVFoundation performance issues (memory leak) -

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i using avfoundation capture qr codes in app. in ios 7.0 seeing major issues regards video capture. capture takes longer , longer each time it, leading app crash due memory leak issues.

it works fine ios 7.1. known issue?

to fix this, had add following code when stopping capturesession

[_capturesession removeinput:self.captureinput];

i not sure why didn't present issue on ios 7.1 though.


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